Faculty Profiles - TATEISHI Kazuo

Papers - TATEISHI Kazuo

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既設鋼床版のUリブ・デッキプレート溶接部に対する床版下面からの疲労対策の耐久性検証 Reviewed

服部雅史，舘石和雄，判治剛，寺沢拓哉

土木学会論文集 Vol. 81 ( 2 ) 2025.2

鋼床版横リブ交差部ビード進展き裂に対するデッキプレート上面からの当て板補強に関する解析的検討 Reviewed

寺沢拓哉，清水優，舘石和雄，判治剛，長谷川秀也，末次宏基

鋼構造年次論文報告集 Vol. 32 page： 1 - 9 2024.11

AE計測によるルートき裂の検知に関する基礎的検討 Reviewed

清水優，舘石和雄，判治剛

鋼構造年次論文報告集 Vol. 32 page： 39 - 46 2024.11

新しい溶接材料を用いたT形すみ肉溶接継手の疲労強度 Reviewed

浅野景太，判治剛，舘石和雄，清水優，小谷祐樹，竹渕敏郎

鋼構造年次論文報告集 Vol. 32 page： 77 - 88 2024.11

Evaluation of fatigue damage ratio for slotted tubular joints of overhead transmission tower with fatigue cracks Reviewed

Naohiro Soda, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the 18th East Asia-Pacific Conference on Structural Engineering and Construction 2024.11

高力ボルトにより当て板添接されたストップホールの組合せ応力作用下での応力集中低減効果 Reviewed

清川昇悟，舘石和雄，判治剛，趙茂伶，川上峻幸

鋼構造論文集 Vol. 31 ( 123 ) page： 57 - 68 2024.9

Extending fatigue life of weld roots in fillet-welded cover plates by installing tap bolt joints Reviewed

Yuichiro Niwa, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

The 77th Annual Assembly of International Institute of Welding page： XIII-3084-2024 2024.7

Numerical simulation of fatigue crack propagation and repair with drilled hole in trough-girder bridges Reviewed

Takeshi Hanji, Kazuo Tateishi, Miki Shibata, Masaru Shimizu, Makoto Yamaguchi, Yuichiro Niwa

The 77th Annual Assembly of International Institute of Welding page： XIII-3083-2024 2024.7

Quantifying the intensity of high-frequency mechanical impact treatment Reviewed International coauthorship International journal

Schubnell, J; Hanji, T; Tateishi, K; Gkatzogiannis, S; Ummenhofer, T; Farajian, M

WELDING IN THE WORLD Vol. 69 ( 1 ) page： 125 - 137 2024.7

鋼橋ソールプレート溶接部の疲労き裂の予防保全対策 Reviewed

丹羽雄一郎，舘石和雄，判治剛，清水優

土木学会論文集 Vol. 80 ( 5 ) page： 23-00234 2024.5

Evaluation of Thickness Effect on Fatigue Life Variation of Longitudinal Welded Gusset Joint Reviewed International coauthorship

Cut Atika Putri, Kazuo Tateishi, Masaru Shimizu, Takeshi Hanji

International Journal of Steel Structures Vol. 24 2024.3

疲労耐久性に優れた鋼床版垂直補剛材上端部の切欠き形状の検討 Reviewed

清水優，舘石和雄，判治剛，金子大介，末次宏基

構造工学論文集 Vol. 70A page： 458 - 469 2024.3

疲労き裂が発生した鉄塔部材の鋼管割込み継手に対する疲労損傷比の評価 Reviewed

早田直広，舘石和雄，判治剛，清水優

構造工学論文集 Vol. 70A page： 521 - 534 2024.3

タップボルト継手の疲労強度および材間相対変位の評価 Reviewed

丹羽雄一郎，舘石和雄，判治剛，清水優

鋼構造論文集 Vol. 31 ( 121 ) page： 115 - 126 2024.3

Structural hot-spot stress approach for toe cracking from plate edge of load-carrying welded attachment Reviewed International coauthorship

Takeshi Hanji, Kazuo Tateishi, Nima Rabsel, Masaru Shimizu

WELDING IN THE WORLD 2024.2

新しいリベットにより取替え補修した継手の力学的挙動に関する研究 Reviewed

柴田美希，判治剛，舘石和雄，清水優，長坂康史，竹渕敏郎

鋼構造年次論文報告集 Vol. 31 page： 409 - 416 2023.11

Analytical study on local stress evaluation at welded joints of sole plates of steel bridges Reviewed

Yuichiro Niwa, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2023 page： 438 - 441 2023.11

Retardation of fatigue crack growth by injection of corrosion accelerator Reviewed

Masaru Shimizu, Kazuo Tateishi, Takeshi Hanji, Cut Atika Putri

Proceedings of the ISSS 2023 page： 548 - 551 2023.11

Fatigue strength improvement methods for front fillet welded joint of sole plate in steel bridge bearings Reviewed

Yuichiro Niwa, Tetsuya Kowaki, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2023 page： 552 - 555 2023.11

Fatigue strength of HFMI-treated welded joints under variable amplitude block loading Reviewed

Takeshi Hanji, Shunsuke Masui, Taisei Tomita, Kazuo Tateishi, Masaru Shimizu

Proceedings of the ISSS 2023 page： 556 - 559 2023.11

Simplified estimation of elasto-plastic strain amplitude at weld toe by elastic analysis Reviewed

Chie Nishijima, Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu

Proceedings of the ISSS 2023 page： 564 - 567 2023.11

Fatigue crack propagation characteristic of out-of-plane gusset welded joints with developed anti-fatigue damage steel Reviewed

Terazawa Takuya, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu, Thihuyen Doan

Proceedings of the ISSS 2023 page： 189 - 192 2023.11

Study on mechanical behavior of riveted joints repaired by re-driving new rivets Reviewed

Miki Shibata, Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu, Yasushi Nagasaka, Toshio Takebuchi

Proceedings of the ISSS 2023 page： 678 - 681 2023.11

Flexural behavior of rational joints between precast steel-concrete composite slabs Reviewed

Yushin Hori, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu, Koichi Asano, Takaaki Ishii

Proceedings of the ISSS 2023 page： 273 - 276 2023.11

Fatigue damage evaluation for root cracks in U-rib to deck welded joints of orthotropic steel decks based on field measurements Reviewed

Masafumi Hattori, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2023 page： 189 - 192 2023.11

未溶着部を有する鋼製橋脚角溶接部の低サイクル疲労による破壊形態の推定 Reviewed

清水優，舘石和雄，判治剛，村上智明，萩原直樹，稲熊唯史，真木有岳

鋼構造年次論文報告集 Vol. 31 page： 160 - 170 2023.11

Fatigue strength evaluation by measurable stresses for root cracks in U-rib to deck welded joints of orthotropic steel decks Reviewed

Masafumi Hattori, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Welding in the World Vol. 67 ( 9 ) page： 2273 - 2282 2023.7

Structural hot-spot stress approach for toe cracking from plate edge of load-carrying welded attachment Reviewed International coauthorship

The 76th Annual Assembly of International Institute of Welding Vol. XIII-2996-2023 2023.7

鋼橋ソールプレート溶接部の発生応力推定に関する解析的検討 Reviewed

丹羽雄一郎，舘石和雄，判治剛，清水優

構造工学論文集 Vol. 69A page： 568 - 578 2023.4

Numerical investigation of fatigue crack propagation behavior in trough-girder bridges Reviewed

Vol. 69A 2023.3

既設鋼床版のUリブ・デッキプレート溶接部に対する床版下面からの疲労対策 Reviewed

服部雅史，舘石和雄，判治剛，清水優

土木学会論文集 Vol. 79 ( 1 ) page： 22-00231 2023.1

デッキプレートとUリブの溶接継手の疲労強度評価と実物大鋼床版との相関 Reviewed

清水優，内田貴之，舘石和雄，判治剛，服部雅史

鋼構造年次論文報告集 Vol. 30 page： 297 - 305 2022.11

高力ボルトにより当て板を添接したストップホールの疲労強度 Reviewed

清川昇悟，舘石和雄，判治剛，加藤遼二郎

土木学会論文集A1 Vol. 78 ( 3 ) page： 417 - 431 2022.11

Fatigue Crack Growth Characteristics of Several Kinds of Structural Steels Under Low-Cycle Fatigue Loading Reviewed

Chao Jiang, Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu

International Journal of Steel Structures 2022.10

Effect of UHPFRC Overlay on Fatigue Cracks Propagating from U-rib Welds of Orthotropic Steel Decks Reviewed

Masafumi Hattori, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

International Journal of Steel Structures 2022.9

実橋計測に基づいた鋼床版Uリブ・デッキプレート溶接部のルートき裂に対する疲労評価 Reviewed

服部雅史，舘石和雄，判治剛，清水優

土木学会論文集A1 Vol. 78 ( 2 ) page： 287 - 300 2022.8

Quantifying the Intensity of High Frequency Mechanical Impact treatment Reviewed International coauthorship

The 75th Annual Assembly of International Institute of Welding Vol. XIII-2930-22 2022.7

Simple Estimation of Strain Amplitude at Weld Toe for Low Cycle Fatigue Assessment Reviewed

The 75th Annual Assembly of International Institute of Welding Vol. XIII-2951-2022 2022.7

Fatigue Strength Evaluation by Reference Stresses for Root Cracks ㏌ U-RIB to Deck Welded Joints of Orthotropic Steel Decks Reviewed

The 75th Annual Assembly of International Institute of Welding Vol. XIII- 2950-2022 2022.7

Fatigue evaluation for root cracks in U-rib to deck welded joints of orthotropic steel decks Reviewed

Masafumi Hattori , Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022) 2022.7

Fatigue strength enhancement of welded joints in existing steel bridges using high-frequency mechanical impact treatment Reviewed

Takeshi Hanji, Kazuo Tateishi, Suguru Kano, Masaru Shimizu

Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022) 2022.7

コーナープレート切欠き部の疲労耐久性とICR処理による延命効果 Reviewed

清水優，舘石和雄，Shinta Ayuningtyas，判治剛，高田佳彦，熊澤美早，山口樹，岡本亮二，西芝貴光

構造工学論文集 Vol. 68A page： 580 - 590 2022.4

静的荷重作用下でHFMI処理された面外ガセット溶接継手の残留応力と疲労強度 Reviewed

判治剛，加納俊，舘石和雄，清水優

構造工学論文集 Vol. 68A page： 591 - 602 2022.4

Effect of static load during HFMI treatment on fatigue strength and residual stress field of longitudinal atachment welded joints (Nov, 10.1007/s40194-021-01208-x, 2021)

Hanji, T; Tateishi, K; Kano, S; Shimizu, M

WELDING IN THE WORLD Vol. 66 ( 4 ) page： 845 - 845 2022.4

Failure Probability for Fatigue Crack in Web Plate of Bridge Girder Reviewed

International Journal of Steel Structures Vol. 22 ( 1 ) page： 42 - 55 2022.2

Prediction of residual stress induced by high-frequency mechanical impact treatment

Hanji Takeshi, Tateishi Kazuo, Kano Suguru, Shimizu Masaru

WELDING IN THE WORLD 2022.1

Retardation of fatigue crack growth by corrosion accelerator injection Reviewed

Cut Atika Putri, Kazuo Tateishi, Masaru Shimizu, Takeshi Hanji.

Journal of Steel Construction Engineering Vol. 28 ( 112 ) page： 111 - 116 2021.12

Effect of static load during HFMI treatment on fatigue strength and residual stress field of longitudinal atachment welded joints

Hanji Takeshi, Tateishi Kazuo, Kano Suguru, Shimizu Masaru

WELDING IN THE WORLD 2021.11

リベットと高力ボルトを併用した接手の力学的挙動と耐力評価 Reviewed

判治剛，鷲見俊哉，舘石和雄，清水優，長坂康史，竹渕敏郎

土木学会論文集A1 Vol. 77 ( 3 ) page： 489 - 508 2021.11

Fatigue evaluation of cut-out at the edge of corner plate and improvement effevct by peening

Masaru Shimizu,Kazuo Tateishi,Takeshi Hanji,Shinta Ayuningtyas,Misa Fujibayashi

Proceedings of the ISSS 2021 2021.11

Influence of weld toe radius on low cycle fatigue life of weld joint in shear panel damper

Kai Hiroyama,Kazuo Tateishi,Takeshi Hanji,Masaru Shimizu,Yasumoto Aoki

Proceedings of the ISSS 2021 2021.11

Fatigue Improvement for Weld Joint between Deck Plate and Vertical Stiffener by Slit-Shaped Notch

Daisuke Kaneko,Kazuo Tateishi,Takeshi Hanji,Masaru Shimizu,Hiroki Suetsugu

Proceedings of the ISSS 2021 2021.11

Effect of UHPFRC Overlay on Effect of UHPFRC Overlay on Fatigue Cracks Propagating from U-rib welds of Orthotropic Steel Decks

Masafumi Hattori,Kazuo Tateishi,Takeshi Hanji,Masaru Shimizu

Proceedings of the ISSS 2021 2021.11

Mechanical Behavior and Limit States of Combination Joints using Rivets and High-Strength Bolts

Shunya Sumi,Takeshi Hanji,Kazuo Tateishi,Masaru Shimizu,Yasushi Nagasaka,Toshio Takebuchi

Proceedings of the ISSS 2021 2021.11

Low cycle fatigue crack growth rate testing with compliance method and its application to different structural steels

Chao Jiang,Takeshi Hanji,Kazuo Tateishi,Masaru Shimizu

Proceedings of the ISSS 2021 2021.11

局部変形を有する埋設パイプラインの軸圧縮変形特性と耐震安全性 Reviewed

菅沼淳, 伊奈孝, 小沢裕治, 舘石和雄

土木学会論文集A1 Vol. 77 ( 3 ) page： 369 - 383 2021.9

鋼橋の強靭化・長寿命化委員会（ＩＩ期）委員会の活動と3研究部会の概要

舘石和雄

JSSC ( 46 ) page： 40 - 40 2021.8

繰返し荷重下の溶接割れとルートギャップ開閉挙動 Reviewed

判治剛，舘石和雄，清水優

土木学会論文集A1 Vol. 77 ( 2 ) page： 287 - 303 2021.8

Prediction of residual stress induced by high-frequency mechanical impact treatment Reviewed

Takeshi Hanji, Kazuo Tateishi, Suguru Kano, Masaru Shimizu

The 74th Annual Assembly of International Institute of Welding page： XIII-2904-2021 2021.7

Fatigue strength and residual stress of longitudinal attachment joints improved by HFMI treatment under static load Reviewed

Takeshi Hanji, Kazuo Tateishi, Suguru Kano, Masaru Shimizu

The 74th Annual Assembly of International Institute of Welding page： XIII-2903 - 2021 2021.7

鋼床版Uリブ・デッキプレート溶接部のルートき裂に対する疲労評価 Reviewed

服部雅史，舘石和雄，判治剛，清水優

土木学会論文集A1 Vol. 77 ( 2 ) page： 255 - 270 2021.7

Local stress based fatigue assessment of welded joints in steel-concrete composite slab using angle-shape shear connectors Reviewed

Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu, Koichi Asano, Takaaki Ishii, Kiyoshi Kobayashi, Daisuke Uchida

Proceedings of the 10th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020) page： 2673 - 2681 2021.4

Investigation on low cycle fatigue crack propagation in steel under fully random variable amplitude loading Reviewed International coauthorship

Arief Panjaitan, Kazuo Tateishi, Masaru Shimizu, Takeshi Hanji

Vol. 67A page： 174 - 182 2021.4

Fatigue behavior of bearing type bolted joint with pultruded CFRP composites Reviewed

Shogo Kiyokawa, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the 10th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020) page： 3657 - 3663 2021.4

Crack sizing accuracy of a phased array ultrasonic scanner developed for inspection of rib-to-deck welded joints in orthotropic steel bridge decks Reviewed

Masafumi Hattori, Tohru Makita, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu, Naoto Yagi

Proceedings of the 10th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020) page： 3946 - 3954 2021.4

Reduction of stress concentration at drilled hole due to adding splice plates Reviewed

Shogo Kiyokawa, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the 10th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020) page： 3531 - 3539 2021.4

熱サイクルおよび予ひずみを受けた低降伏点鋼のシャルピー衝撃試験 Reviewed

清水優, 舘石和雄, 判治剛, 青木康素

鋼構造論文集 Vol. 28 ( 109 ) page： 183 - 190 2021.3

鋼橋の強靭化・長寿命化に向けた研究の取組み Invited

舘石和雄，奥井義昭，村越潤，穴見健吾，岩崎英治

橋梁と基礎 Vol. 55 ( 02 ) page： 16-22 2021.2

Stress reduction at drilled crack-arrest holes by adding splice plates

Kiyokawa, S; Tateishi, K; Hanji, T; Shimizu, M

BRIDGE MAINTENANCE, SAFETY, MANAGEMENT, LIFE-CYCLE SUSTAINABILITY AND INNOVATIONS page： 3531 - 3539 2021

Study on low cycle fatigue crack propagation under two-steps variable amplitude Reviewed

Arief Panjaitan,Kazuo Tateishi,Masaru Shimizu,Takeshi Hanji

Journal of Japanese Society of Steel Construction Vol. 27 ( 108 ) page： 93-103 2020.12

鋼床版のUリブ溶接部からデッキプレートに進展した疲労き裂に対するUHPFRC敷設による対策効果 Reviewed

服部雅史，舘石和雄，判治剛，清水優

土木学会論文集A1 Vol. 76 ( 3 ) page： 542-559 2020.11

Local Strain-Based Low-Cycle Fatigue Assessment of Joint Structure in Steel Truss Bridges During Eartequakes Reviewed

Chao Jiang,Hanji Takeshi,Tateishi Kazuo, Shimizu Masaru

International Journal of Steel Structures Vol. 20 ( 5 ) page： 1651 - 1662 2020.10

Fatigue strength of transverse attachment steel joints with single-sided arc weld using low transformation temperature welding consumable Reviewed

Hanji Takeshi, Tateishi Kazuo, Kano Suguru, Shimizu Masaru, Tsuyama Tadahisa, Takebuchi Toshio

WELDING IN THE WORLD Vol. 64 ( 7 ) page： 1293 - 1301 2020.7

Low cycle fatigue crack propagation of steel under constant amplitude displacement histories Reviewed

Vol. 106 ( 27 ) page： 75 2020.6

ハイブリッドFRP引抜成形材と鋼材の支圧ボルト接合部に関する耐力実験 Reviewed

寺口大輝, 北根安雄, 松井孝洋, 舘石和雄

土木学会論文集A1 Vol. 76 ( 5 ) page： 95-104 2020.5

鋼コンクリート合成床版のL形鋼ジベル溶接部の疲労強度 Reviewed

判治剛, 舘石和雄,清水優,浅野浩一,石井孝明,小林潔,内田大介

土木学会論文集A1 Vol. 76 ( 5 ) page： 50-61 2020.5

狭いボルト間隔と縁端距離を有する高力ボルト摩擦接合継手の疲労強度 Reviewed

清川昇悟，舘石和雄，判治剛，清水優

土木学会論文集A1 Vol. 76 ( 2 ) page： 212-222 2020.5

低変態温度溶接材料を用いた片面すみ肉溶接ルート部の疲労強度 Reviewed

判治剛，加納俊，舘石和雄，清水優，津山忠久，竹渕敏郎

構造工学論文集 Vol. 66A page： 607-616 2020.4

未溶着部を含む十字溶接接手の低サイクル疲労評価 Reviewed

判治剛，大橋優子，舘石和雄，清水優，

構造工学論文集 Vol. 66A page： 253-263 2020.4

Effect of weld penetration on low-cycle fatigue strength of load-carrying cruciform joints Reviewed

Hanji Takeshi, Tateishi Kazuo, Ohashi Yuko, Shimizu Masaru

WELDING IN THE WORLD Vol. 64 ( 2 ) page： 327 - 334 2020.2

せん断パネルダンパー溶接部から発生する低サイクル疲労の照査法 Reviewed

清水優，舘石和雄，判治剛，青木康素

鋼構造年次論文報告集 Vol. 27 page： 661-666 2019.11

A practical stress intensity factor formula for CFRP-repaired steel plates with a central crack Reviewed International coauthorship

Liu Ruoyu, Chen Tao, Li Lingzhen, Tateishi Kazuo

Journal of Constructional Steel Research Vol. 162 2019.11

Fatigue strength of cruciform joints and longitudinal joints with laser-arc hybrid welding Reviewed

Hanji Takeshi, Tateishi Kazuo, Shimizu Masaru, Uchida Daisuke, Asano Koichi, Kimura Ryosuke

WELDING IN THE WORLD Vol. 63 ( 5 ) page： 1379 - 1390 2019.9

Slip Coefficient and Ultimate Strength of High-Strength Bolted Friction Joints with Compact Bolt Spacing and Edge Distance Reviewed

Kiyokawa Shogo, Tateishi Kazuo, Hanji Takeshi, Shimizu Masaru

International Journal of Steel Structures Vol. 19 ( 4 ) page： 1191 - 1201 2019.8

Fatigue strength of transverse attachment joints with single-sided weld using low transformation temperature welding consumable Reviewed

Takeshi Hanji, Kazuo Tateishi, Suguru Kano, Masaru Shimizu, Tadahisa Tsuyama, Toshio Takebuchi

The 72nd Annual Assembly of International Institute of Welding page： XIII-2809-19 2019.7

タック溶接を含むレーザ・アークハイブリッド溶接継手の疲労強度 Reviewed

判治剛，舘石和雄，清水優，内田大介，木村陵介，浅野浩一

溶接学会論文集 Vol. 37 ( 3 ) page： 99-107 2019

腐食した鋼桁端部に対する引抜成形FRPアングル部材による補修方法の検討 Reviewed

北根安雄, 上山裕太, 寺口大輝, 松井孝洋, 舘石和雄, 後藤基浩

土木学会論文集A1 Vol. 75 ( 5 ) page： II_27 - II_35 2019

Fundamental Study on Fatigue of Connection between Track Girder and Cross Beam in Straddle-Type Monorail Reviewed

Eiki Yamaguchi, Masayoshi Kibe, Kazuo Tateishi, Hiroshi Noda, Syuichi Tsunematsu

( 34 ) page： 31-37 2018.12

レーザークリーニングを施した溶接継手の疲労強度 Reviewed

Cut Atika Putri，舘石和雄，判治剛

鋼構造論文集 Vol. 25 ( 100 ) page： 73-76 2018.12

腐食した鉄筋の疲労寿命予測 Reviewed

判治剛，アフマドザイニアマチュラ，舘石和雄，清水優

鋼構造年次論文報告集 Vol. 26 page： 804-810 2018.11

疲労き裂部に対する高力ボルト当て板補強におけるすべり耐力 Reviewed

清川昇悟，判治剛，清水優，舘石和雄

鋼構造年次論文報告集 Vol. 26 page： 277-283 2018.11

当て板によるストップホール部の応力集中低減効果 Reviewed

清川昇悟，舘石和雄，判治剛，清水優，中山裕哉

構造工学論文集 Vol. 64A page： 435-444 2018.3

当て板補強が施されたストップホールのひずみ推定法 Reviewed

清川昇悟，舘石和雄，判治剛，清水優，中山裕哉

構造工学論文集 Vol. 64A page： 445-454 2018.3

溶接止端部に生じる局部ひずみ範囲の簡易推定法 Reviewed

清水優，舘石和雄，判治剛，本田直也

鋼構造論文集 Vol. 25 ( 97 ) page： 61-66 2018

Effect of weld penetration on low cycle fatigue strength of load-carrying cruciform joints Reviewed

Takeshi Hanji, Kazuo Tateishi, Yuko Ohashi, Masaru Shimizu

The 71st Annual Assembly of International Institute of Welding page： XIII-2749-18 2018

レーザ・アークハイブリッド溶接を用いた十字継手の疲労強度 Reviewed

判治剛，舘石和雄，清水優，内田大介，木村陵介，浅野浩一

溶接学会論文集 Vol. 36 ( 4 ) page： 219-229 2018

鉄道橋Ｉビーム桁支点部の疲労き裂とその補修対策による延命効果 Reviewed

判治剛，舘石和雄，清水優，岩井将樹，池頭賢，丹羽雄一郎

土木学会論文集A1 Vol. 74 ( 2 ) page： 290-305 2018

鋼床版Uリブ・デッキプレート溶接部の内在き裂に対するフェーズドアレイ超音波探傷の測定精度 Reviewed

服部雅史，牧田通，舘石和雄，判治剛，清水優，八木尚人

土木学会論文集A1 Vol. 74 ( 3 ) page： 516-530 2018

鋼管集成橋脚に設けられたせん断パネルダンパー溶接部の低サイクル疲労評価手法 Reviewed

清水優，舘石和雄，判治剛，杉山裕樹，曽我恭匡，足立陸，野田拓史

鋼構造論文集 Vol. 24 ( 96 ) page： 17-29 2017.12

Influence of shear panel shape in multiple steel columns on low cycle fatigue

Masaru Shimizu, Kazuo Tateishi, Takeshi Hanji, Hiroshi Noda, Hiroki Sugiyama, Yasumasa Soga

Proceedings of the ISSS 2017 page： 466-469 2017.11

Evaluation of repair effect for cracked I-beam end in railway steel bridges

Haruya Shirai, Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu, Masaki Iwai, Ken Ikegashira, Yuichiro Niwa

Proceedings of the ISSS 2017 page： 404-407 2017.11

A simple low cycle fatigue assessment method for steel members and its application to bridge piers under earthquake

Tomohiro Furusaki, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu, Naoya Honda

Proceedings of the ISSS 2017 page： 269-272 2017.11

Fatigue life prediction of corroded reinforcing steel bars

Takeshi Hanji, Niamatullah Ahmadzai, Kazuo Tateishi, Masaru Shimizu

Proceedings of the ISSS 2017 page： 478-481 2017.11

Slip coefficient and fracture strength of high strength bolted friction joints with compact bolt spacing and edge distance

Shogo Kiyokawa, Kazuo Tateishi, Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2017 page： 223-226 2017.11

鉄道橋Iビーム桁支点首部における疲労き裂対策の効果検証 Reviewed

池頭賢，丹羽雄一郎，松本健太郎，判治剛，舘石和雄

鋼構造年次論文報告集 Vol. 25 page： 661-666 2017.11

Static and vibration characteristics of thin-walled box beams: An experimental investigation Reviewed International coauthorship

Kashefi Kiana, Sheikh Abdul Hamid, Griffith Michael C., Ali M. S. Mohamed, Tateishi Kazuo

ADVANCES IN STRUCTURAL ENGINEERING Vol. 20 ( 10 ) page： 1540-1559 2017.10

Fatigue crack growth prediction of welded joints in low-cycle fatigue region Reviewed

Hanji Takeshi, Tateishi Kazuo, Terao Nao, Shimizu Masaru

WELDING IN THE WORLD Vol. 61 ( 6 ) page： 1189-1197 2017.10

ボルト間隔および縁端距離が小さい高力ボルト摩擦接合継手のすべり係数とすべり後耐力に関する検討 Reviewed

清川昇悟，舘石和雄，判治剛，清水優

鋼構造論文集 Vol. 24 ( 95 ) page： 25-40 2017.9

Fatigue strength of cruciform joints and longitudinal joints with laser-arc hybrid welding Reviewed

Takeshi Hanji, Kazuo Tateishi, Masaru Shimizu, Daisuke Uchida, Koichi Asano, Ryosuke Kimura

The 70th Annual Assembly of International Institute of Welding page： XIII-2698-17 2017.6

ハイブリッドFRP積層体の支圧強度評価法に関する実験的研究 Reviewed

上山裕太，北根安雄，松井孝洋，近藤富士夫，舘石和雄

土木学会論文集A1 Vol. 73 ( 5 ) page： II_74-II_83 2017

角形鋼管を用いた溶接継手に対する低サイクル疲労き裂進展評価 Reviewed

判治剛，寺尾名央，舘石和雄，清水優

鋼構造年次論文報告集 Vol. 24 page： 628-632 2016.11

鋼床版横リブスリット溶接部の疲労強度向上法に関する基礎的研究 Reviewed

判治剛，伊藤あゆみ，舘石和雄，清水優

鋼構造年次論文報告集 Vol. 24 page： 657-662 2016.11

Fatigue crack growth prediction of welded joints in low cycle fatigue region Reviewed

Takeshi Hanji, Kazuo Tateishi, Nao Terao, Masaru Shimizu

The 69th Annual Assembly of International Institute of Welding page： XIII-2651-16 2016.7

繰返し大ひずみ下の鋼材の疲労き裂進展速度式と溶接継手のき裂進展予測への適用 Reviewed

判治剛，寺尾名央，舘石和雄，清水優

鋼構造論文集 Vol. 23 ( 89 ) page： 85-95 2016.3

付加板が近接する溶接継手の疲労強度とICR処理による延命効果 Reviewed

判治剛，舘石和雄，清水優，加瀬駿介，岩井将樹

構造工学論文集 Vol. 62A page： 667-674 2016.3

Displacement Based Fatigue Strngth Evaluation for Root Failure in Fillet Weld Joints

Kazuo Tateishi,Naohiro Soda,Takeshi Hanji,Masaru Shimizu

Proc. of the 8th International Symposium on Steel Structures page： 169-170 2015.11

グラインダー処理による溶接残留応力の再分配挙動に関する研究 Reviewed

前田諭志，舘石和雄，判治剛，清水優

鋼構造年次論文報告集 Vol. 23 page： 630 - 636 2015.11

A prediction method for extremely low cycle fatigue crack propagation of structural steels

Nao Terao,Takeshi Hanji, Kazuo Tateishi,Masaru Shimizu

Proceedings of the ISSS 2015 page： 387-388 2015.11

Fatigue strength of welded joint with adjacent attachments

Shunsuke Kase,Kazuo Tateishi,Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2015 page： 171-172 2015.11

Analytical study on low cycle fatigue of shear panel in multiple steel columns

Masaru Shimizu,Kazuo Tateishi,Takeshi Hanji,Riku Adachi

Proceedings of the ISSS 2015 page： 253-254 2015.11

Fatigue life prediction for cracked steel plates repaired with CFRP

Mamiko Hattori,Takeshi Hanji, Kazuo Tateishi,Masaru Shimizu

Proceedings of the ISSS 2015 page： 377-378 2015.11

Redistribution behavior of residual stress due to weld toe grinding

Satoshi Maeda,Kazuo Tateishi,Takeshi Hanji, Masaru Shimizu

Proceedings of the ISSS 2015 page： 383-384 2015.11

An estimation method for weld crack initiation in weld repair under cyclic loading

Takeshi Hanji, Yoshio Hasegawa,Kazuo Tateishi,Masaru Shimizu

Proceedings of the ISSS 2015 page： 397-398 2015.11

すみ肉溶接継手のルートき裂に対する変位基準の疲労強度評価法 Reviewed

舘石和雄，早田直広，判治剛，清水優

土木学会論文集A1 Vol. 71 ( 3 ) page： 315-326 2015.9

Simple repair method for fatigue cracks in welded joints by resin injection Reviewed

Mamiko Hattori,Takeshi Hanji,Kazuo Tateishi

Proceedings of the IABSE Conference Nara page： CD-ROM 2015.5

Crack propagation behavior of structural steel in extremely low cycle fatigue region Reviewed

Nao Terao,Takeshi Hanji,Kazuo Tateishi

Proceedings of the IABSE Conference Nara page： CD-ROM 2015.5

Fatigue strength evaluation method of connection between longitudinal closed ribs and cross-beam web cutouts in orthotropic steel bridge decks Reviewed

Takeshi Hanji,Kazuo Tateishi,Keito Kato

Proceedings of the IABSE Conference Nara page： CD-ROM 2015.5

引張または曲げ荷重を受ける溶接継手に対するICR処理の効果 Reviewed

舘石和雄，判治剛，石川敏之，清水優

構造工学論文集 Vol. 61A page： 627-637 2015.3

局部ひずみを基準とした異形鉄筋の低サイクル疲労強度評価法 Reviewed

判治剛，舘石和雄，永松　直樹

構造工学論文集 Vol. 61A page： 767-776 2015.3

Extremely low cycle fatigue assessment of corner crack in concrete-filled steel piers based on effective notch strain approach Reviewed

Jin-Eun Park, Takeshi Hanji, Kazuo Tateishi

Vol. 61A page： 662-671 2015.3

溶接継手の残留応力低減による疲労寿命改善効果に関する一考察 Reviewed

舘石和雄，判治剛

鋼構造年次論文報告集 Vol. 22 page： 795-800 2014.11

Low cycle fatigue assessments of corner welded joints based on local strain approach Reviewed

Takeshi Hanji, Jin-Eun Park, Kazuo Tateishi

International Journal of Steel Structures Vol. 14 ( 3 ) page： 579-587 2014.9

Low cycle fatigue assessment for corner joints based on effective notch strain approach Reviewed

Takeshi Hanji, Jin-Eun Park, Kazuo Tateishi

The 67th Annual Assembly of International Institute of Welding page： ⅩⅢ-2550-14 2014.7

橋梁用高降伏点鋼板(SBHS)を用いた溶接継手の疲労特性 Reviewed

判治剛，舘石和雄，小野秀一，段下義典

構造工学論文集 Vol. 60A page： 587-595 2014.3

前面すみ肉溶接で接合された重ね継手の面外曲げ荷重下での疲労強度 Reviewed

舘石和雄，崔誠珉，判治剛，内田大介，浅野浩一，小林潔

鋼構造論文集 Vol. 21 ( 81 ) page： 47-53 2014.1

道路橋の鋼製フィンガージョイントの損傷メカニズム Reviewed

酒井修平，小野秀一,舘石和雄

鋼構造論文集 Vol. 21 ( 84 ) page： 9-21 2014

Fatigue strength improvement of weld joints with cope hole Reviewed

Sung-Min Choi, Kazuo Tateishi, Takeshi Hanji

International Journal of Steel Structures Vol. 13 ( 4 ) page： 683-690 2013.11

コンクリートを充填した矩形断面鋼製橋脚の低サイクル疲労挙動 Reviewed

朴鎭垠，判治剛，舘石和雄

鋼構造年次論文報告集 Vol. 21 page： 802-808 2013.11

Low cycle fatigue characteristics of steel deformed bars Reviewed

Takeshi Hanji, Kazuo Tateishi, Kenyuu Ushida, Naoki Nagamatsu, Sung-Min Choi

Proc. of the 10th Pacific Structural Steel Conference page： 505-510 2013.10

Fatigue life extension of cracked welded joints by ICR treatment under tensile loading Reviewed

Kazuo Tateishi, Takeshi Hanji, Yoshitaka Tsuruta, Sho Sasada, Sung-Min Choi

Proc. of the 10th Pacific Structural Steel Conference page： 493-498 2013.10

Low cycle fatigue assessment of steel bridge piers subjected to long duration ground motions Reviewed

Takeshi Hanji, Kazuo Tateishi, Shun Ukai, Sung-Min Choi

Proc. of the 10th Pacific Structural Steel Conference page： 499-504 2013.10

Estimation of Scatter ㏌ Fatigue Life of Welded Joints Reviewed

Kazuo Tateishi, Moritaka Yoshida

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. 69 ( 3 ) page： 481-490 2013.10

Fatigue strength of welded joints using steels for bridge high performance structures (SBHS) Reviewed

Takeshi Hanji, Kazuo Tateishi, Shuichi Ono, Yoshinori Danshita, Sung-Min Choi

Proc. of the 13th East Asia-Pacific Conference on Structural Engineering and Construction Vol. C-4-5 page： CD-ROM 2013.9

Local stress behavior at closed rib to crossbeam connections in orthotropic steel bridge decks Reviewed

Keito Kato, Takeshi Hanji, Kazuo Tateishi, Sung-Min Choi, Shigeyuki Hirayama

Proc. of the 13th East Asia-Pacific Conference on Structural Engineering and Construction Vol. B-4-4 page： CD-ROM 2013.9

Fatigue strength of base joint with partial penetration weld in steel bridge brackets Reviewed

Kazuo Tateishi, Takeshi Hanji, Sung-Min Choi, Kenshi Yoshimine, Tatsuya Takase

Steel Construction Engineering, JSSC Vol. 20 ( 77 ) page： 15-24 2013.3

Local stress characteristics at cross-beam web cutout in closed rib orthotropic deck Reviewed

Takeshi Hanji, Keito Kato, Kazuo Tateishi, Sung-Min Choi, Shigeyuki Hirayama

Journal of Structural Engineering, JSCE Vol. 59A page： 781-789 2013.3

Low cycle fatigue design curves for base joints of steel bridge piers Reviewed

Takeshi Hanji, Kazuo Tateishi

Proc. of the International Workshop on Advances in Seismic Experiments and Computations page： 223-228 2012.3

Analytical Study on Crack Propagation at Rib-to-Deck Welded Joints in Orthotropic Steel Decks Reviewed

Xiaochen Ju, Sung-Min Choi, Kazuo Tateishi

Vol. 19 ( 73 ) page： 85-94 2012.3

Study on fatigue crack propagation of a through-thickness crack subjected to out-of-plane bending Reviewed

Xiaochen Ju, Kazuo Tateishi

International Journal of Steel Structures page： 85-92 2012.3

Fatigue strength evaluation for welded joints by newly developed local stress estimation method Reviewed

Kazuo Tateishi, Takeshi Hanji, Wataru Naruse,Isao Ito,Sung-Min Choi

Journal of Structural Engineering, JSCE Vol. 58A page： 647-654 2012.3

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

This study proposed a simple method for estimating local stresses in as-welded
joints and established a fatigue assessment method by using the estimated local stress.
In this method, the local stress at the as-welded toe is estimated from the stress at the
weld toe finished by grinding, where the stress can be measured by strain gauges.
Fatigue tests and finite element analyses were conducted with out-of-plane gusset
welded joints in as-welded and finished conditions. Based on the results, the local
stress at the as-welded toe was correlated with the stress at the finished groove. It
was concluded that the fatigue strength of the as-welded joints can be evaluated by
using the local stress estimated by the proposed method.

Evaluation of scatter in fatigue life of welded joints by fracture mechanics Reviewed

Kazuo Tateishi, Moritaka Yoshida, Takeshi Hanji

Journal of Constructional Steel Vol. 19 page： 351-354 2011.11

Improvement methods in extremely low cycle fatigue strength of base joints in steel bridge bents by weld toe treatment Reviewed

Kazuo Tateishi, Takeshi Hanji, Naoki Nagamatsu

Journal of Constructional Steel, JSSC Vol. 19 page： 355-360 2011.11

Language：Japanese Publishing type：Research paper (scientific journal)

This study investigated the effect of extremely low cycle fatigue strength
improvements on steel bridge piers by weld toe grinding. Low cycle fatigue tests on
steel pier specimen of which base joints were finished by grinding were performed.Test
results revealed that the fatigue strength of the pier was improved by the toe grinding in comparison to those in as-welded condition. Local strains around flnished weld toe were analyzed by finite element analysis. It was confirmed that it is possible to estimate the extremely low cycle fatigue life by using local strain and suggested fatigue strength curves.

Retardation of fatigue crack propagation in welded joints under plate bending by hardening material injection Reviewed

Kazuo Tateishi,Ryuichi Tsuboi,Takeshi Hanji

Proc. of the 6th International Symposium on Steel Structures page： 352-357 2011.11

Authorship：Lead author Language：English

The number of fatigue cracks at in steel bridges is increasing, while it is difficult
to repair all cracks just after detecting them. In this study, a simple repair method for
cracks in steel bridges was proposed.This method can retard or arrest the crack
growth by injecting hardening material into the crack to restrain its closure. To verify
the applicability of the proposed method, fatigue tests under plate bending were
conducted on out-of-plane gusset welded joints repaired by the hardening material
injection. lt was indicated that effect of the crack growth retardation depends on
when injecting the hardening material into the crack, and that the proposed method can
extend the fatigue life regardless of the stress ratio.

Crack behavior at Rib-to-Deck Welded Joints in Orthotropic Steel Decks Reviewed

Xiaochen Ju, Sung-Min Choi, Kazuo Tateishi

Vol. 59 page： CDROM 2011.11

Fatigue strength evaluation method for welded joints by new local stress concept

Kazuo Tateishi, Wataru Naruse, Takeshi Hanji, Isao Ito

Proceedings of the International Conference on Advanced Technology in Experimental Mechanics' 11 page： CD-ROM 2011.9

面外曲げとせん断力を受ける溶接継手に生じる疲労き裂の進展挙動に関する研究 Reviewed

舘石和雄,土屋啓祐,柳沼安俊

土木学会論文集A1 Vol. 67 ( 2 ) page： 386-395 2011.8

Evaluation of scatter in fatigue life of welded joints by fracture mechanics

Kazuo Tateishi, Moritaka Yoshida, Takeshi Hanji

Proc. of the 11th Japan-Korea Joint Symposium on Steel Bridges page： CD-ROM 2011.8

Improvement in extremely low cycle fatigue strength of steel bridge piers by weld toe grinding

Naoki Nagamatsu, Takeshi Hanji, Kazuo Tateishi

Proc. of the 11th Japan-Korea Joint Symposium on Steel Bridges page： CD-ROM 2011.8

Fatigue strength of base joints of outrigger bracket in steel bridges

Shun Ukai, Kazuo Tateishi, Takeshi Hanji, Kenshi Yoshimine

Proc. of the 11th Japan-Korea Joint Symposium on Steel Bridges page： CD-ROM 2011.8

Local stress based fatigue assessment for out-of-plane gusset welded joints

Sho Sasada, Kazuo Tateishi, Takeshi Hanji

Proc. of the 11th Japan-Korea Joint Symposium on Steel Bridges page： CD-ROM 2011.8

止端処理を施した溶接継手の極低サイクル疲労強度とその簡易推定法 Reviewed

舘石和雄，埴渕脩司

土木学会論文集A1 Vol. 67 ( 2 ) page： 294-306 2011.7

Effect of plate thickness on extremely low cycle fatigue strength of welded joints

Kazuo Tateishi, Shuji Hanibuchi

Proc. of the 63th annual meeting, International Institute of Welding page： XIII-2335-10 2010.6

A Proposal on Low Cycle Fatigue Strength Curve for Base Joints of Steel Bridge Pier Reviewed

Takeshi Hanji , Kazuo Tateishi

Steel Construction Engineering, JSSC Vol. 16 ( 64 ) page： 21-30 2009.12

Slip Resistance of friction-type Connections fastened with High-strength Bolts used to exposed Weathering Steel Reviewed

Junij Sasajima,Yoshihiro Nitta,Kinya Miyagawa, Kazuo Tateishi,Takao Harada

Jounal of Constructional Steel Vol. 17 page： 399-404 2009.11

Language：Japanese Publishing type：Research paper (scientific journal)

This paper reports a detailed investigation on slip resistance of friction-type connections fasten with high-strength bolts used to exposed weathering steel. In case of normal steel, it is already reported about the influence that rusted friction surfaces gives to a slip coefficient. However, in the case of weathering steel, there are many reports about progress speed of rust and thickness decrease by corrosion, but there are few reports to about the influence of a state of friction surface.

Improvement of extremely low cycle fatigue strength of welded joints by toe finishing Reviewed

Kazuo Tateishi, Takeshi Hanji, Shuji Hanibuchi

Welding in the World, IIW Vol. 53 page： 238-245 2009.10

A simulation on fatigue crack propagation in welded joints

Takeshi Hanji, Kazuo Tateishi, Keisuke Tsuchiya

Proceedings of the 10th International Conference on Structural Safety and Reliability page： 3377-3381 2009.9

Local Stress Behavior around Welded Joint of Angle Shape Shear Connector used in Steel-Concrete Composite Slab Reviewed

Kazuo Tateishi,Sung-Min Choi,Daisuke Uchida, Koichi Asano,Kiyoshi Kobayashi

Steel Construction Engineering, JSSC Vol. 16 ( 63 ) page： 57-66 2009.9

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Local stress behavior around welded joint between angle-shape shear connector and bottom plate in steel-concrete composite slab was investigated by 3D FEA. From the analytical result, local bending deformation was observed when the bond between concrete and steel plate was lost. Also, it was confirmed that local stress around welded joint due to local bending deformation was strongly correlated with shear stress of shear connector. After these analytical investigations, correlation equation between stress concentration factor of welded joint and shear stress of angle shape shear connector was established in order to carry out fatigue design. Moreover, in this paper calculating methods of bending moment and shear stress for steel-concrete composite slab using angle shape shear connector were recommended.

Improvement of Fatigue Strength in Steel Bridges Invited

Kazuo Tateishi

Steel Construction Today & Tomorrow, JSSC ( 27 ) page： 6-9 2009.7

A Case Study of Performance Based Design on Low Cycle Fatigue Improvement

Kazuo Tateishi, Takeshi Hanji and Shuji Hanibuchi

Proc. of the 5th International Symposium on Steel Structures page： 201-205 2009.3

Language：English

In this study, we analyzed the local strain around the cracking point of the finished joint and the as-welded joint by FEA, and demonstrated that the local strain could be affected by the toe geometry parameters, such as radius, depth of the groove, and the main plate thickness. Then, we presented an example way to determine the desirable shape of the finished zone for satisfying the fatigue performance requirement of the welded joint.

A Simulation of Fatigue Crack Propagation in Steel Girder Bridges Reviewed

Kazuo Tateishi, Akira Tanikaga, Takeshi Hanji

Journal of Constractional Steel Vol. 16 page： 453-458 2008.11

Extremely low cycle fatigue assessment method for un-stiffend steel pier with box section Reviewed

Kazuo Tateishi,T Chen,Takeshi Hanji

Proc. of the 11th East Asia-Pacific Conference on Stuctural Engineerring & Construction(EASEC-11) page： 184-185 2008.11

Language：English

In the Great Hanshin Awaji Earthquake(1995),steel bridge piers were damaged by extremely low cycle fatigue, which has raised concerns about the seismic performance of the piers. However, researches on extremely low cycle fatigue strength of structural steel members have been limited and no design guidelines have been established for bridge structures. The authors have already conducted a series of researches on extremely low cycle fatigue strength of structural steel members and proposed a simple assessment method for extremely low cycle fatigue strength of the steel bridge piers. In this study, steel pier specimens were fabricated and tested under large cyclic deformation, and the proposed assessment method was verified by the test results.

Improvement of extremely low cycle fatigue strength of welded joints Reviewed

Shuji Hanibuchi,Kazuo Tateishi,Takeshi Hanji

Proc. of the 11th East Asia-Pacific Conference on Stuctural Engineerring & Construction(EASEC-11) page： 538-539 2008.11

Language：English

In this study, the improvement of extremely low cycle fatigue strength by toe finishing was investigated. T-shape welded joints, which are in as-welded, TIG dressed or burr ground condition, were tested under displacement control conditions. The test results indicated that crack initiation lives of finished specimens were much longer than those of as-welded specimens. Between TIG dressing and burr grinding no clear difference on improvement was observed. We also performed elasto-plastic finite element analyses to calculate local strain around the cracking point, and assessed the fatigue strength of the finished specimen based on the local strain. The results demonstrated that the fatigue strength of TIG dressed and burr ground joints can be reasonably assessed using the local strain at the cracking point and the extremely low cycle fatigue strength curves.

A study on fatigue crack propagation path in T-Shape welded joints Reviewed

Keisuke Tsuchiya,Kazuo Tateishi,Takeshi Hanji

Proc. of the 11th East Asia-Pacific Conference on Stuctural Engineerring & Construction(EASEC-11) page： 530-531 2008.11

Language：English

In this study, fatigue crack propagation analyses on T-shape welded joints subjected to plate bending were carried out. We picked up five kinds of stresses as parameters ,i.e. nominal bending stress, membrane stress and average shear stress in the main plate, nominal bending stress and membrane in the attached rib. We analyzed the crack propagation path with changing these parameters. Analysis results results indicated that the crack angle at the beginning was influenced by these parameters, especially the average shear stress in the main plate. These results were supported by fatigue test results conducted on T-shape welded joints with the same conditions used in the analysis .Finally, we presented the relationship of the average shear stress and the crack angle at the beginning.

Fatigue Strength of Angle Shape Shear Connector used in Steel-Concrete Composite Slab Reviewed

Kazuo Tateishi,Sung-Min Choi,Daisuke Uchida, Kouichi Asano,Kiyoshi Kobayashi

International Journal of Steel Structures Vol. 8 ( 3 ) page： 199-204 2008.9

Language：English Publishing type：Research paper (scientific journal)

Fatigue strength of welded joint between angle shape shear connector and bottom plate in stress-concrete composite slab was investigated by fatigue tests. Fatigue tests were performed on push-out shear specimen and beam specimen. Local stress around the welded joint was also investigated by FEA. In fatigue tests, fatigue cracks initiated and propagated at the welded toe. The fatigue cracks were caused by stress concentration at the welded joints due to the local bending deformation of bottom plate. The fatigue strength of the welded joints can be reasonably assessed by using the hot spot stress and the design curve of FAT100 recommended in IIW.

Fatigue Strength Improvement of U-type Trough Rib at Field Welded Joint in steel Bridge Deck Reviewed

Sung-Min Choi,In-Tae Kim,Won-Chan Seo,Dong-Uk Lee, Kazuo Tateishi

International Journal of Steel Structures Vol. Vol 8 ( 3 ) page： 215-223 2008.9

Language：English Publishing type：Research paper (scientific journal)

The influence of misalignment is investigated to improve the fatigue strength of U-type trough ribs at field welded joints in steel bridge decks. A 3-point bending fatigue test and examined with a fatigue test and FEA to estimate the influence of misalignment. The result of the static loading test for the full-scale specimens showed that the position of maximum stress is in the bottom corners of the U-rib. It is known that fatigue cracks initiate from the inner surface of the U-rib and propagated to the outer surface, and larger misalignments contributed to a shorter fatigue life for the U-rib, based on the result of the fatigue test. The fatigue life is drastically reduced when the magnitude of misalignment is increased, as shown in the results of the fatigue test on small-scale specimens with a backing strip, and fatigue cracks usually occurred at the root of base metal. The result of stress analysis on small-scale specimens showed that the stress concentration at the root of base metal increases in proportion to larger misalignment, and the semicircular shape of the root is less subject to stress concentration than the right angle root type.

Improvement of extremely low cycle fatigue strength of welded joints by toe finishing

Kazuo Tateishi, Shuji Hanibuchi, Takeshi Hanji

The 61st Annual Assembly of International Institute of Welding page： XIII-2232-08 2008.7

Extremely low cycle fatigue assessment method for un-stiffened cantilever steel columns Reviewed

Kazuo Tateishi, Tao Chen, Takeshi Hanji

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. 64 ( 2 ) page： 288-296 2008.4

Review of recent bridge asset management systems

Takeshi Hanji, Kazuo Tateishi

Proceedings of International Symposium on EcoTopia Science 2007 page： 1322-1326 2007.11

Analytical Investigation on Fatigue Crack Propagation in Welded Joints Reviewed

Kazuo Tateishi,Takeshi Hanji

Journal of Constractional Steel Vol. 15 page： 321-326 2007.11

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Recently, a lot of fatigue cracks have occurred at some members in steel bridges. Besides, steel bridge have a possibility that the cracks would be initiated in future resulting the increase of their ages. In order to repair and retrofit the cracks properly, it is important to predict how they will propagate and to specify why they were initiated. In this paper, fatigue crack propagation analysis of welded joint was carried out with ZENCRACK software, and some factors which can be influence on the crack propagation process were investigated.

Fatigue Strength of Steel-Concrete Composite Slab using Angle Shape Shear Connector Reviewed

Kazuo Tateishi,Sung-Min Choi,Daisuke Uchida,Koichi Asano,Kiyoshi Kobayashi

Steel Construction Engineering, JSSC Vol. 14 ( 55 ) page： 123-132 2007.9

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue strength of welded joint between angle-shape shear connector and bottom plate in steel-concrete composite slab was investigated by fatigue testes. Local stress around the welded joint was also investigated by FEA. In fatigue tests, fatigue cracks initiated and propagated at the welded toe. The fatigue cracks were caused by stress concentration at the welded joints due to the local bending deformation of bottom plate. This local bending deformation was observed when the bond between concrete and steel palate was lost, and analytically simulated by FEA carried out on slab members in practice. After these investigations, it was confirmed the stress level at the welded joint was small and much less than the fatigue limit even when the design truck loads were applied.

Low cycle fatigue assessment for welded joints based on local strain approach

Kazuo Tateishi, Takeshi Hanji, Tao Chen

The 60th Annual Assembly of International Institute of Welding page： XIII-2160-07 2007.6

A study on strain behavior of thick walled steel pier under seismic action for low cycle fatigue assessment

Kazuo Tateishi,Tao Chen

Vol. VOL.6 page： CD-ROM 2007.6

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

For low cycle fatigue assessment, strain behavior in steel member should be sccurately estimated. An investigation on local strain behavior of steel pier excited by strong ground motion due to earthquake is presented here. Average strains in effective failure length of the pier are obtained by nonlinear dynamic analysis, and then they can be converted to local strain range by a relationship proposed for thick walled steel piers. Parametric studies with various accelerograms and geometry configurations of the member are conducted. Based on local strain range estimated by the method, fatigue damage index is finally calculated and discussed.

A Prediction Model for Extremely Low Cycle Fatigue Strength of Structural Steel Reviewed

Kazuo Tateishi,Takeshi Hanji,Kuniaki Minami

International Journal of Fatigue Vol. 29 ( 5 ) page： 887-896 2007.5

Language：English Publishing type：Research paper (scientific journal)

Miner's rule has been accepted as a simple and effective method for predicting the low cycle fatigue life under variable strain amplitude. However, in an extremely large strain field, corresponding to the fatigue life of less than 10 cycles, the accuracy of Miner's rule has not been verified. In this study, low cycle fatigue tests under variable strain amplitude in an extremely large strain field were conducted with a newly developed testing system. Miner's rule always predicted a longer fatigue life than the observed life. A simple model introducing the damage mechanics concept was proposed and its validity was examined as another method for predicting low cycle fatigue
life.

Low Cycle Fatigue Assessment of T Shaped Welded Joint by Local Strain Based Approach Reviewed

Tao Chen,Kazuo Tateishi

Proc. of 8th Pacific Structural Steel Conference page： 159-164 2007.3

Language：English

Several T-shaped welded joint models are analyzed by finite element (FE) method for low cycle fatigue assessment in this paper. Joint is subjected to random loading blocks and strain history is counted by rainflow counting method. Endeavor is exerted to correlate local strain range of coarse FE model that ignores weld toe profile with strain range obtained by fine FE model that simulates the weld toe profile. Other parameters such as main geometrical dimensions and material properties are also taken into account. After that, strain range relationship is established. Numerical results show that weld toe radius is the most influential factor while others' effects are insignificant. At last, proposed approach is introduced to the analysis of T shaped welded joint test. It turns out simple and convenient in low cycle fatigue assessment since cumbersome modeling of weld local profile becomes not necessary.

Extremely Low Cycle Fatigue Assessment of Thick Walled Steel Pier Using Local Strain Approach Reviewed

Tao Chen,Kazuo Tateishi

Journal of Structural Engineering, JSCE Vol. 53A page： 485-492 2007.3

Language：English Publishing type：Research paper (scientific journal)

In this paper, several un-stiffened thick walled steel piers were analyzed to investigate high local strain in welded joints that triggered extremely low cycle fatigue failure. The local strain range at weld toe was correlated with the nominal strain range in effective failure length obtained by beam model analysis. Based on the local strain estimated by the nominal strain with the correlation, extremely low cycle fatigue assessment was carried out. It was shown that the local strain approach based on beam model analysis gave a safe side fatigue assessment result.

A New Local Strain Based Approach to Low Cycle Fatigue Assessment of Welded Joint Reviewed

Kazuo Tateishi,Tao Chen,Takeshi Hanji

Steel Construction Engineering, JSSC Vol. 13 ( 52 ) page： 73-81 2006.12

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Several T-shaped welded joint models are analyzed by finite element5 method for history is counted by range pair-range counting method. Endeavor is exerted to correlate local strain range of coarse FE model that ignores the weld toe profile with strain range obtained by fine material properties and loading pattern are also taken into account. After that, strain range factor while others' effects are insignificant. At last, proposed approach is introduced to the analysis of T shaped welded joint test. It turns out simple and convenient in low cycle fatigue assessment since cumbersome modeling of weld local profile becomes not necessary.

疲労設計の方向

舘石和雄

橋梁と基礎 Vol. 40 ( 8 ) page： 33-35 2006.8

Improvement of extremely low cycle fatigue strength of welded joints by TIG dressing Reviewed

Takeshi Hanji, Kazuo Tateishi, Kazuya Kitoh, Kuniaki Minami

Steel Construction Engineering, JSSC Vol. 13 ( 50 ) page： 27-34 2006.6

鋼構造物におけるき裂検査の現状と課題

森猛，舘石和雄

安全工学シンポジウム2006 page： 41-52 2006.6

局部加熱を併用した硬化剤注入手法による鋼材の疲労き裂進展抑制 Reviewed

舘石和雄，北河一喜，稲葉尚文，冨田芳男

土木学会論文集A Vol. 62 ( 1 ) page： 126-131 2006.1

Extremely low Cycle Fatigue Assessment for Welded Joints Based on Peak Strain Approach Reviewed

Kazuo Tateishi,Takeshi Hanji,Kuniaki Minami,Kazuya Kitoh

Vol. 62 ( 1 ) page： 101-109 2006.1

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

As an estimation method of low cycle fatigue strength of welded joint in extremely large strain field, fatigue assessment method based on peak strain approach was verified. T-shape welded joints were employed for the low cycle fatigue test. The local strain field around welded portion and the peak strain at the cracked point was analyzed by elasto-plastic finite element method. The relationship between the peak strain and the fatigue life was consistent with the fatigue strength curve proposed by the authors. Consequently, it was demonstrated the fatigue assessment method based on peak strain approach was available even in extremely large strain region.

A prediction model for extremely low cycle fatigue life under variable strain amplitude

Kazuo Tateishi, Takeshi Hanji

Proc. of the 8th Japan-Korea Joint Seminar on Steel Bridges page： 251-257 2005.8

Extremely low cycle fatigue assessment method for welded joint by peak strain approach

Takeshi Hanji, Kazuo Tateishi, Kazuya Kitoh

Proc. of the 6th Japanese-German Bridge Symposium page： CD-ROM 2005.8

Improvement of extremely low cycle fatigue strength of welded joints by TIG dressing

Kazuo Tateishi, Takeshi Hanji, Kazuya Kitoh

Proc. of the 6th Japanese-German Bridge Symposium page： CD-ROM 2005.8

Low cycle fatigue testing system by means of image technique and its application to steel welded joints

Takeshi Hanji, Kazuo Tateishi

Proc. of the 1st International Conference on Advances in Experimental Structural Engineering page： 603-609 2005.7

Surface Measurement of Corroded Steel Plate by Digita Stereo-Graphy Reviewed

Kazuo Tateishi,Kengo Shibata,Takeshi Hanji

Steel Construction Engineering, JSSC Vol. 12 ( 46 ) page： 27-34 2005.6

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Surface profile of structural members sometimes gives valuable information to estimate mechanical behavior of existing structures. In this study, based on stereography technique, a simple method to measure the surface profile was developed, and apllied to a corroded steel plate surface. The method gave good results even for corroded steel plate surface which has few image patters and characteristics. The accuracy of the method was also discussed on the results for a variety of system conditions, such as camera position and camera resolution.

A Prediction Model for Extremely Low Cycle Fatigue Strength of Welded Joints Reviewed

Kazuo Tateishi,Takeshi Hanji, Kazuya Kitoh,Kuniaki Minami

Journal of Structural Engineering, JSCE Vol. 51A page： 1275-1282 2005.3

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

We investigated the low cycle fatigue strength of welded materials under constant and variable strain amplitude in extremely large strain region. The test results indicated that fatigue strength of welded materials, particularly heat-affected zone(HAZ),was much lower than that of plain material. We then developed a model to predict the extremely low cycle fatigue strength of welded materials Fatigue life estimated by this model was well agreed with test results.

Low cycle fatigue strength of butt- welded steel joint by means of new testing system with image technique Reviewed

Kazuo Tateishi,Takeshi Hanji

International Journal of Fatigue Vol. 26 ( 12 ) page： 1349-1356 2004.12

Language：English Publishing type：Research paper (scientific journal)

In this study, we investigated the low cycle fatigue strength of welded joints using a new fatigue testing system in which the image analysis technique was used to measure the strains in specimens. After checking the validity of the testing system, we used this new system to conduct fatigue tests on welded joint specimens. The test results indicate that the fatigue strength of welded material (weld deposit and heat affected zone) is much lower than that of the plain material.

A Prediction Model for Extremely Low Cycle Fatigue Life under Variable Strain Amplitude Reviewed

Kazuo Tateishi,Takeshi Hanji,Kuniaki Minami

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-69 ( 773 ) page： 149-158 2004.10

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

For predicting the low cycle fatigue life under variable strain amplitude,Miner's rule has been accepted as a simple and effective idea.
In extreme large strain field corresponding to the fatigue life of less than ten cycles,however,the accuracy of Miner's rule has not been verified yet.In this study,by means of a newly developed testing system,low cycle fatigue tests under variable strain amplitude in extreme large strain fierd was conducted.The test results showed Miner's rule always predicted longer fatigue life than actual life.As another idea for predicting low cycle fatigue life,we proposed model introducing the damage mechanics concept and examined its validity.

Low Cycle Fatigue Strength of Steel in Extreme Large Strain Field

Kazuo Tateishi,Takeshi Hanji

Proc.of The 3rd International Conference on Earthquake Engineering page： 561-565 2004.10

Language：English

Extensive experiments on the low cycle fatigue for plain steel material have been conducted and obtained some important results. There are few studies, however, on the low cycle fatigue the extreme large strain field, corresponding to the fatigue life less than ten cycles. In this study, we developed a new low cycle fatigue testing system, in which a specimen was subjected to bending deformation and the strain in the specimen was measured by image analysis technique. Low cycle fatigue test results, an estimation method for low cycle fatigue strength in the extreme large strain field was proposed.

Low Cycle Fatigue Strength of Welded Joints in Extreme Large Strain Field

Kazuo Tateishi,Takeshi Hanji

Proc.of The 2nd International Conference on Bridge Maintenance,Safety,Management and Cost page： 853-854 2004.10

A Study on Low Cycle Fatigue Strength of Butt Welded Joints by Means of Testing System with Image Analysis Reviewed

Kazuo Tateishi,Takeshi Hanji

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-66 ( 752 ) page： 277-287 2004.1

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Low cycle fatigue strength of welded joints was investigated by means of newly developed fatigue testing system in which image analysis technique was applied to measure the strain of specimens. It was validated that the strain measured by the image analysis was almost equal to measured value by strain gauge, and the low cycle fatigue strength of steel plate without welding was in good agreement with the results reported in former researches. After verifying the testing system, fatigue tests were carried out on welded joint specimens. The test results indicated that the low cycle fatigue strength of welded joints was mach lower than that of plain material, and fatigue life was reduced by half.

Application of Image Analysis to Steel Structural Engineering

Kazuo Tateishi, Takeshi Hanji

North American Euro-Pacific Worlshop,Sensing Issues in Civil StructuralHealth Monitoring page： 47-56 2004

3-D shape measurement of corroded surface by using digital stereography

Takeshi Hanji, Kazuo Tateishi, Kazuki Kitagawa

Proc. of the 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure page： 699-704 2003.11

A study on low cycle fatigue strength of butt welded joint by means of image analysis technique

Kazuo Tateishi, Takeshi Hanji

Proc. of the 5th Japanese-German Joint Symposium on Steel and Composite Bridges page： 405-409 2003.9

Low cycle fatigue testing system by means of image analysis technique

Takeshi Hanji, Kazuo Tateishi

Proc. of the 7th Korea-Japan Joint Seminar on Steel Bridges page： 441-449 2003.8

Delay Effect on Fatigue Crack Propagation in Steel Members by Resin Injection

Kazuo Tateishi,Kazuki Kitagawa

Proc. of the 7th Korea-Japan Joint seminar on Steel Bridges page： 425-430 2003.8

Language：English

Resin injection is possible method to arrest the growth of fatigue crack in steel structures tentatively, because the resin injected into the fatigue crack is expected to act as a filling and inhibit crack opening/closing behavior, which result in the decrease of effective stress intensity factor range and crack propagation rate. In this study, the possibility and the limitation of the method are investigated on the basis of fatigue results conducted on steel plate specimens.

A study on the quality of studs welded in horizontal position and the possibility of post-welding repair Reviewed

Kosuke Tsuji,Masaki Shimamoto,Kazuo Tateishi

Steel Construction Engineering, JSSC Vol. 9 ( 35 ) page： 17-24 2002.9

Language：Japanese Publishing type：Research paper (scientific journal)

As studs come to be applied to complicated structures, the demand to make the stud joints in horizontal welding position arises recently, though such welding position often leads to the occurrence of flaws. In this study, imperfect studs were made by the welding in horizontal position, and their quality in terms of shapes, flaws and material properties were investigated. After that, repair work by post-welding was carried out on the imperfect studs in order to find their possibility and limitation.

Fatigue Strength of Welded Steel Wire Mesh made with Spot Welding Reviewed

Kazuo Tateishi,Kenshi Yoshimine,Koji Ota,Takayoshi Matsui

Vol. 13 ( 2 ) page： 25-32 2002.5

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue tests were carried out on welded steel wire mesh and RC beam in order to investigate the fatigue strength of welded steel wire mesh made with spot welding. Besides, welding residual stress and stress concentration at the crossing portion of the bars, which influenced fatigue performance of the mesh very much, were investigated by experiment and FEM analysis respectively. Fatigue strength of the mesh was mush higher than the specified design strength for welded steel reinforcing bar, because welding residual stress was small, and stress concentration is relatively mild. Finally, fatigue crack propagation analysis was applied to estimate the fatigue strength and propose a design curve for the steel wire mesh made with spot welding.

Re-analysis of fatigue test date of attachments based on stress at fillet weld toe Reviewed

Kentaro Yamada,Zhi-Gang Xiao,In-tae Kim,Kazuo Tateishi

Journal of Structural Engineering, JSCE Vol. 48A page： 1047-1054 2002.3

Language：Japanese Publishing type：Research paper (scientific journal)

Fillet weld causes stress concentration, Kt, at weld toe. Its effect is rather local, for example within 1 mm deep for non-load-carrying fillet-welded joints of 10 mm thick with fillet welds of 6 mm leg length. Such a fillet-welded joint is taken as a reference detail. Then, Kt of other fillet- welded details can be defined as local Kt multiplied by global( geometric )Kt. In this study Kt at 1 mm away from weld toe of fillet welded attachment is analyzed to find the global Kt. Fatigue test date of attachments is re-plotted with nominal stress range multiplied by global Kt. It is in good agreement with the test date of the reference detail. This new approach may open a way to investigate fatigue strength of more complicated fillet-welded attachments by FEM analysis.

鋼構造の疲労予測技術とメンテナンス

舘石和雄

土木学会誌 Vol. 86 ( 12 ) page： 44-47 2001.12

Strain Measurement System by Digital Stereo Vision Reviewed

Kazuo Tateishi

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. VIー53 ( 693 ) page： 87-94 2001.12

Authorship：Lead author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

A system for measuring large strain in strain in structural members is developed by using digital stereo vision. The system consists of the following processes, 1) target points provided on the specimen surface, 2) identify the coordinates of each target point by digital stereo vision, 3) calculate displacement vector of each target point, and
4) calculate the strain field. All preprocesses are performed automatically, and the strain results can be obtained in some seconds. This system makes it possible to carry out semi-realtime strain measurements, even if object includes three-dimensional deformation like local buckling.

Method for Estimating Fatigue Crack Propagation Rate for a Crack in Welded Joints Reviewed

Kazuo Tateishi,Takeshi Hanji,Satoshi Yamada,Makoto Abe

Steel Construction Engineering, JSSC Vol. 8 ( 31 ) page： 11-16 2001.9

Language：Japanese Publishing type：Research paper (scientific journal)

Recently, a lot of fatigue cracks have been found in steel bridges to the increase of the large-scale vehicles in number as well as weight. In order to consider a repairing this study, a method to estimate the fatigue crack propagation rate is proposed, which is based on the crack opening width measured by image analysis on a digital image recorded with a portable digital microscope. The accuracy and limitation of the method were investigated through a fatigue test carried out on a fatigue crack in welded joint specimen.

Estimation method for crack propagation behavior in welded joint Reviewed

Kazuo Tateishi,Takeshi Hanji,Makoto Abe

Proceedings of the 6th Korea-Japan Joint Seminar on Steel bridges page： 369-373 2001.8

第２東名高速道路・山間部の橋梁群

舘石和雄

土木学会誌 Vol. 86 ( 1 ) page： 59-62 2001.1

Monitoring system for fatigue crack propagation by image analysis

Kazuo Tateishi, Takeshi Hanji, Makoto Abe

Current and Future Trends in Bridge Design, Construction and Maintenance Vol. 2 page： 256-260 2001

溶接継手部に生じた疲労き裂の応力拡大係数の推定手法 Reviewed

舘石和雄，判治剛，山田聡，阿部允

鋼構造年次論文報告集 Vol. 8 page： 617-620 2000.11

Fatigue strength of the joint between steel plate and steel reinforcement in composite decks Reviewed

kazuo Tateishi, Koji Ota,Kiyoshi Suzuki

Journal of Structural Engineering, JSCE Vol. 46A page： 1555-1560 2000.3

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

In steel-concrete composite bridge decks, steel beams and steel reinforcement are placed longitudinally or transversally. At the intersection between steel beam and steel reinforcement, welding is sometimes provided in order to fix the position of reinforcement during construction period. In this study, fatigue strength of the welded joint between steel plate and steel reinforcement was investigated experimentally. The test results showed that this type of welded joint had relatively high fatigue strength and could be categorized into D class in JSSC codes, because welding residual stress around the welded part and geometrical stress concentration was small.

Low Cycle Fatigue of concrete Filled Steel Tube Members Reviewed

Kazuo Tateishi,Tomoya Saito,Kiyomitu Murata

Proc.of the 7th International Symposium on Stuctural Failure and Plasticity page： 679-684 2000

Language：English

Low cycle fatigue, Which is one of the final failure modes of Concrete Filled steel Tube (CFT) members, was investigated experimentally. In Order to estimate the low cycle fatigue strength, strain behaviors in the steel tube must be investigated in detail. In this study, a new strain measuring system based on the photogrammetry technique was applied. This method made it possible to measure the large strains around the buckling portion and reveal the unique characteristics of the strain field. Based on the measured strain date, low cycle fatigue assessment was performed. As result, it was shown that this assessment was effective to deal with the crack problem in CFT members.

CFT部材の鋼管のひずみ挙動に関する研究 Reviewed

斉藤智也、舘石和雄

コンクリート工学年次論文報告集 Vol. 22 ( 3 ) page： 1045-1050 2000

Simple method for estimating stress intensity factor by image analysis

kazuo Tateishi, Hiroto Oyamada, Taketo Uomoto

Proc. of the 5th Korea-Japan Joint Seminar on Steel Bridges page： 185-191 1999.10

Simple method to estimate stress intensity factor by image analysis Reviewed

Kazuo Tateishi,Hiroto Oyamada,Taketo Uomoto,Ichiro Adachi

Steel Construction Engineering Vol. 6 ( 23 ) page： 99-104 1999.9

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

A simple method to estimate the stress intensity factor was proposed. In this method, the displacement of the crack surface which could be directly related the stress intensity factor was measured by image analysis on a digital photograph recorded with a portable digital microscope. As a result of the accuracy verification by the fatigue test a CT specimen, it was shown that this method was available to estimate the stress intensity factor with good accuracy.

Strain Measurements on Concrete FIlled Steel Tube Members By Image Analsis Reviewed

Kazuo Tateishi,Kiyomitu Murata

Journal of Structural Engineering, JSCE Vol. 45A page： 1537-1544 1999.3

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

One of the main failure modes of Concrete Filled steel Tube( CFT )members is low cycle fatigue failure of the steel tube. In this study, as a fundamental study to estimate the low cycle fatigue strength of CFT members, strain measurements for the steel tube were carried out by using newly developed image analysis system which is three-dimensionaly deformed, so that the strain field around the buckling portion in the steel tube where a crack may be formed can be measured by the system. The
Results of strain measurements by the system were used to calculate the fatigue damage around the buckling portion and investigate effectiveness of the low cycle fatigue assessment for CFT members.

欠陥を有する異形鉄筋ガス圧接継手の強度特性 Reviewed

鈴木元敏、長野岳宏、舘石和雄、足立一郎

コンクリート工学年次論文報告集 Vol. 21 ( 3 ) page： 319-324 1999

Language：Japanese Publishing type：Research paper (scientific journal)

本研究では、欠陥を意図的に入れた圧接継手と健全な圧接継ぎ手から試験片を切出し、欠陥による不良接合面と健全な接合面の引張、疲労強度特性を実験的に明らかにした。また、内部欠陥の有無によるガス圧接継手の疲労強度の違いを実験的に明らかにした。さらに、弾塑性解析により、母材と圧接部のひずみ状態を求め、その結果と実験より得られた強度曲線から、ふくらみ径と疲労強度の関係を明らかにした。その結果、不良接合面の引張及び疲労強度は非常に弱く、ガス圧接継手においても疲労強度は著しく低下することが明らかとなり、今回の試験体では、圧接部は母材径の1.4倍以上必要であると判断できた。

Strain Behavior of Concretes Filled Steel Members under Cyclic Loading Reviewed

Kazuo Tateishi,Kiyomitu Murata

Proc.of the 7th EASEC page： 949-954 1999

Language：English

In this study, strain behavior of steel tube in concrete Filled steel Tube(CFT) member was investigated by a newly developed strain measuring system which was based on the photogrammetry technique and could be applied to an object even if local buckling deformation occurred in it. After the accuracy verification of the system by comparing with the strain date given from strain gauge, the system was applied to the loading test on CFT specimen, and unique characteristics of the strain field around the buckling portion of steel tube were clarified. The measured strain date were also used to assess the low cycle fatigue strength of the tube, and it was shown that the low cycle fatigue assessment was available for considering the fatigue criteria of CFT member

Failure Mechanisms of RC Piers with Termination of Reinforcement at Mid-height and Retrofitting by Alamid Sheet Reviewed

Masayuki Yamada,Chitoshi Miki,Kazuo Tateishi,Kenji Gondo

Journal of Structural Engineering Vol. 44A page： 1317-1324 1998.3

Language：Japanese Publishing type：Research paper (scientific journal)

In this paper, ductility of RC bridge pier with termination of reinforcement at mid-height was studied. To discuss the structural details to prevent shearing failure, reversed cyclic horizontal tests were carried out with some types of specimens. The specimens have different details, lateral tie`s interval, shape of cross-section, thickens of cover concrete and retrofitting by alamid sheet. As results, each specimens had distinctive failure processes. Especially the crack generated at the termination of reinforcement become diagonal shearing cracks. RC pier confined by alamid sheet increases its ductility and round cross-section is possible to much confinement than square cross-section.

Cope Hole Details for Improving Fatigue Strength Reviewed

Kazuo Tateishi,Chitoshi Miki,Katsuya Kajimoto

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-42 ( 584 ) page： 307-310 1998.1

Language：Japanese Publishing type：Research paper (scientific journal)

Altered cope hole details for improving fatigue strength proposed and their effects were examined by fatigue tests. It was shown that the detail in which the weld was quitted near the corner of cope hole and the end welded bead was finished by grindings, and the detail in which cope hope was filled up with welded bead, had higher fatigue strength than conventional cope hole details.

骨材界面組織が物質拡散に与える影響についての解析的研究 Reviewed

出口知史、舘石和雄、魚本健人

コンクリート工学年次論文報告書 Vol. 20 ( 2 ) page： 763-768 1998

Language：Japanese Publishing type：Research paper (scientific journal)

本研究は物質拡散の形状を検討することを目的とした。そこで非反応性である酸素拡散に関して、モンテカルロシュミレーションによる骨材配置を行う事によって骨材の界面組織の連結性を中心とした特性に注目しつつ有限要素法による二次元拡散プログラムを用いてシュミレートし検討を行った。その結果遷移帯領域の酸素拡散係数はセメントペースト領域の約50～100倍の値を示し、酸素拡散の形態は粒度分布や骨材量の変化に伴う遷移帯の連結が影響している可能性を示した。

鉄筋コンクリート柱における鉄筋の地震時ひずみ履歴に関する研究 Reviewed

舘石和雄、西田朱里、矢島哲司、魚本健人

コンクリート工学年次論文報告集 Vol. 20 ( 3 ) page： 277-282 1998

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

地震時に鉄筋コンクリート柱の鉄筋に生じるひずみ履歴を解析的に明らかにすることにより、鉄筋の疲労損傷度と、断面諸元、軸力の大きさや地震波の性質などとの関係について検討した。その結果、断面諸元の変化が鉄筋の累積疲労損傷度に与える影響は小さいこと、地震波の性質によって軸力が疲労被害に与える影響が大きく異なることが明らかとなった。さらに、実験的に得られた鉄筋の低サイクル疲労破壊発生条件と解析結果とを比較することにより、通常の条件下では実構造物に低サイクル疲労破壊が発生する可能性は小さいことを示した。

スカラップを有する厚板I型断面桁　現場溶接継手部の疲労強度 Reviewed

南邦明，三木千壽，舘石和雄

土木学会論文集 Vol. I-41 ( 577 ) page： 121-130 1997.10

Language：Japanese Publishing type：Research paper (scientific journal)

Ⅰ型断面桁を現場溶接する際、ウエブにスカラップを有するディテールとなるが、スカラップが存在することよりせん断変形が生じ局部的な応力集中が発生する。このため疲労強度の低い継手であり、JSSCの疲労設計指針ではこのディテールをG等級としている。本研究では、特にせん断の影響に着目するため複数のジャッキで位相を変えてせん断力の方向が変わるように載荷し、少主桁橋の現場溶接を想定し厚板フランジでの疲労強度を確認した。また、疲労強度を向上させるため、廻し溶接部をグライダー仕上げすることによる効果を明らかにした。これらの結果より、スカラップを有するI型断面を現場で溶接する構造ディテールの設計・製作上考慮すべきことがらを明確にした。

Fatigue strength of cope hole details in steel bridges Reviewed

Chitoshi Miki,Kazuo Tateishi

International Journal of Fatigue Vol. 19 ( 6 ) page： 445-455 1997.7

Language：English Publishing type：Research paper (scientific journal)

Cope holes found at the intersections of steel structural members to access crossing welds may cause high stress concentration and decrease the fatigue strength of the detail. In this study, fatigue strength and local stresses for cope hole details existing in I-section beams bent in- planes were investigated by fatigue tests, stress measurements and stress analyses. The experimental results showed the fatigue strength of cope hole details was extremely low due to the local stress around the cope holes. In particular, when shear deformation was induced in a gap of flange plate inside a cope hole, the local stress was greatly increased. Using an analytical approach, the relationship between the magnitude of local stress and some influential parameters was investigated and a simple method to estimate the local stress for cope hole details is propose

Fatigue Strength of the Joint between Diaphragms and Longitudinal Ribs in Box Section Girders Reviewed

Chitoshi Miki,Masakatu Shiozaki,Kazuo Tateishi,Harukazu Ohashi

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-39 ( 563 ) page： 35-40 1997.4

Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue strength of the joint between diaphragms and longitudinal ribs on lower in box girder of suspension bridge was investigated by means of fatigue tests and stress analyses. Fatigue tests were carried of cope holes at the crossing joints. It was found that smaller cope hope was appropriate for reducing the local stress and increasing fatigue strength. However, when no cope hope existed, high stress concentration occurred at the flange plate inside of through rib fatigue strength became low.

Fatigue Design for Cope Hole Details in I-section Members of Steel Bridges Reviewed

Chitoshi Miki,Kazuo Tateishi

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-39 ( 563 ) page： 41-47 1997.4

Language：Japanese Publishing type：Research paper (scientific journal)

Local stresses around the cope hope in I-section members of steel bridges were investigated by finite element analysis in order to propose a simple method to estimate the stress concentration factor for the detail from geometrical parameters and loading conditions. Based on the results, fatigue design method for this detail including the influences of shear deformation of the flange plate inside of cope hole was proposed

鉄筋コンクリート橋脚の耐力・変形のエネルギー的評価

舘石和雄、山田真幸、三木千寿、瀬間　優、玉置一清

阪神・淡路大震災に関する学術講演論文集 page： 353-360 1997

境界要素法による高速移動荷重列に対する橋桁の動的応答解析の試み Reviewed

白旗弘実、三木千壽、舘石和雄

土木学会論文集 Vol. I-37 ( 549 ) page： 107-114 1996.10

Language：Japanese Publishing type：Research paper (scientific journal)

高速列車が橋梁を通過する際に生じる問題の１つに衝撃荷重がある。今後さらに列車を高速にする計画があるが、従来のモード法をベースにした解析法によれば、高速域で、衝撃率が極めて高くなることもある。本研究では従来あまり試みたことのない移動荷重による橋梁の動的応答を弾性波動から検討する目的で、境界要素法を用いた解析を試みたものである。

Influence of Welding Materials on Fatigue Strength of Fillet Welded Joints Made from High Strength Steel Reviewed

Kazuo Tateishi, Kyung.K.S,Fumitaka Machida,Chitoshi Miki

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-36 ( 543 ) page： 133-140 1996.7

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

In order develop a method to improve fatigue strength of fillet welded joints made from high strength steel, specimens with special considerations in electrode materials or post welding treatments were made and tested. Fatigue test results showed that weld toe re-melting method or TIG dressing could obviously improved fatigue strength, while applying under matching welds or special electrode with high fluidity had little advantage. These results were discussed in relation to welded toe profile, residual stress and hardness.

断面変化部のある鋼管柱の繰り返し水平載荷実験

舘石和雄、本間宏二、三木千寿、穴見健吾、佐々木哲也

阪神・淡路大震災に関する学術講演会論文集 page： 355-358 1996

Local Stress and Fatigue Strength of the Joint between Longitudinal and Transverse Ribs in Orthotropic Steel Deck Plate Reviewed

Chitosi Miki,Kazuo Tateishi, Atsushi Okugawa, Yuji Fujii

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-32 ( 519 ) page： 127-137 1995.7

Language：Japanese Publishing type：Research paper (scientific journal)

Local stress properties and fatigue strength of the joint between longitudinal and transverse ribs in orthotropic steel deck plate were investigated experimentally. In order to induce the out-of plane deformation to the web of transverse rib, loading system which can simulate the passing load was built using three loading jacks. The results of stress measurements and fatigue tests showed that the crossing detail without scallops on the deck plate side had lower local stress and fatigue life than that with scallops.

A Study on the Improvement of Resolution of Ultrasonic Inspection by Aperture Synthesis System Reviewed

Jiro Iwatate,Masato Tanaka,Kazuo Tateishi,Chitoshi Miki

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-30 ( 507 ) page： 121-127 1995.1

Mechanism for Developing Local Stress at the Connection Details in Steel Bridge Structures Reviewed

Kazuo Tateishi,Hiroyuki Takenouchi,Chitoshi Miki

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-30 ( 507 ) page： 109-119 1995.1

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

A method to find the relationship between local stresses caused fatigue damage at the connection details in steel bridge structures and displacements of bridge members were proposed. By applying this method to three typical damaged crossing details, the arising mechanism of local stresses were investigated.

Probabilistic Study on Fatigue Strength of Longitudinal Welded Joints Reviewed

Kazuo Tateishi,Chitoshi Miki, Kyung K.S

Proc.of the 5th EASEC page： 1641-1646 1995

Fatigue Damage of Shoes in Plate Girder Bridges and Improvement of Their Details Reviewed

Kazuo Tateishi,Toru Natori,Chitoshi Miki

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-27 ( 489 ) page： 167-176 1994.4

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue damages around shoe of plate girder bridges were investigated focusing on the two causes, the deterioration of movability of she and the gap between sole plate and lower flange of main girder. The results of fatigue test and FEM analysis showed that these two causes raised high stress concentration around she leading to fatigue crackings. Five types of improved details in order to prevent fatigue around shoe were tested and their effectiveness were discussed.

Fatigue Strength of Scallop Details in Steel Bridges Reviewed

Chitoshi Miki,Kazuo Tateishi,Kenji Ishihara,Katsuya Kajimoto

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-27 ( 483 ) page： 79-86 1994.1

Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue strengths of scallop details in welded structural members were investigated by experiment and FEM analysis. Fatigue strength of this detail based on nominal stress was extremely low because high stress concentration occurred in the gap of scallop. Fatigue strength based on hot spot stress are potted on narrow band above the JSSC`s E class design curve ( 80MPa for 2×106 Cycles), which shows that fatigue assessment method based on the hot spot stress is valid for estimating fatigue strength of scallop details.

Probabilistic Study on Influence of Blowholes on Fatigue Strength of Longitudinal Welded Joint Reviewed

Chitoshi Miki,Kazuo Tateishi,Kyung K.S

Vol. 43 ( 487 ) page： 421-426 1994

Language：Japanese Publishing type：Research paper (scientific journal)

The influence of blowholes on the fatigue strength of members with longitudinal welded
Joints was investigated by probabilistic approach. Random variables and parameters used were blowhole size, member length, probability of fatigue crack occurrence from blowholes, distribution of stress range and parameter C in paris`s law. Probabilistic functions of these variables were given from the results of previous fatigue tests or field measurements. By parametrical analysis, the influences of the above random valiables on the fatigue strength of longitudinal welded joints were evaluated quantitatively.

A Study on Fastigue Strength of Scallop Details under Out‐of‐Plane Displacement Reviewed

Chitoshi Miki,Kazuo Tateishi,J.F.Ricci,Katsuya Kajimoto

Jourhal of Structural Engineering, JSCE Vol. 39A page： 989-998 1993.3

Language：Japanese Publishing type：Research paper (scientific journal)

Most fatigue cracks in bridges are observer at the welded joints between longitudinal members and perpendicular members. At their crossing connections, scallops are set up to avoid the crossing-over of some welded lines. In this type of structural detail, the forces transmitted through secondary members in duce the out-of-plane bending deformation to the gap in scallop. To investigate the fatigue strength of scallop detail with out-of-plane bending stresses, experimental study was carried out. The stress distribution around scallop changed due to the scallop size, and some different types of fatigue cracks occurred in each type of specimen. Fatigue strength arranged by the `hot spot stress'was over 60 MPa FOR 2x106 cycles.

Numerical Simulation of Ultrasonic Pulse-Echo Inspection Reviewed

Chitoshi Miki,Kiyohiro Ikeda,Kazuo Tateishi,Masanori Takahashi

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-22 ( 459 ) page： 39-48 1993.1

Fatigue strength of fillet-welded joints containing root discontinuities Reviewed

Chitoshi Miki,Kazuo Tateishi ,Heng-da Fan, Masato Tanaka

International Journal of Fatigue Vol. 15 ( 2 ) page： 133-140 1993

Language：English Publishing type：Research paper (scientific journal)

In order to examine the fatigue performance of fillet-welded joints containing root crack or root-gap defects, fatigue tests are carried out. The specimens consist of two series; the first series are non-load-carrying cruciform, load- carrying cruciform and longitudinally welded joints. The second series are all load-carrying cruciform joints and have four kinds of details with various root- gap sizes and leg length. The test results indicate that the fatigue strength of joints which contain defects is equal to or higher than that of joints with no defects.

ブローホールからの疲労き裂発生確率が縦方向溶接部材の疲労強度に及ぼす影響 Reviewed

三木千寿、舘石和雄、慶甲秀

第１２回材料・構造信頼性シンポジウム講演論文集 page： 108-112 1993

Material Dependence of Fatigue Strength of Longitudinal Welded Joints Reviewed

Kazuo Tateishi, Kyung K.S,Chitoshi Miki, Masato Tanaka

Proc.of the 4th EASEC page： 1321-1326 1993

Fatigue Strength of Cross Connection Details Reviewed

Chitoshi Miki,Kazuo Tateishi, J.F.Ricci, Katsuya Kajimoto

Proc.of the 4th EASEC page： 1279-1284 1993

A Study on the Local Stress Approach to the Fatigue Assessment Reviewed

Chitoshi Miki,Kazuo Tateishi,Yoshihiro Yamamoto,Masanobu Miyauchi

Journal of Structural Engineering, JSCE Vol. 38A page： 1055-1062 1992.3

Language：Japanese Publishing type：Research paper (scientific journal)

For the fatigue assessment based on the local stress, it is important how to define the stress to assess the fatigue strength. In this study, the measurements and the analysis of the stress distributions near the welded toe are carried out on three different type of specimens. Through these results and the fatigue test date which has been obtained on these specimens, the method to define the local stress to assess the fatigue strength is investigated.

A Liveload Model for Fatigue Design on Steel Highway Bridges Reviewed

Chitoshi Miki, Kazuo Tateishi,Ichiro Sugimoto

J of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-16 ( 432 ) page： 63-68 1991.7

Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue design load of highway bridges is studied by means of the simulation of variable amplitude section forces in bridge components. As the standard load for fatigue design, we propose the T-20 load ( a single truck load ) which is prescribed in Japanese Specification for highway bridges. The effects of multiple presence of truck vehicles in same lane, or in different double lanes are estimated in the form of a load factor γ1 and
γ2 respectively. And to estimate the effect of over-loading of truck vehicles, we propose a load factor γ3 .Using the T-20 load modified by load factor γ1,γ2
and γ3, fatigue design of steel highway can be simply be preformed.

Field Stress Measurements at the Connection Between Longitudinal and Transverse Ribs of Steel Deck Plates Reviewed

Chitoshi Miki,Kazuo Tateishi,Sentaro Takagi

Journal of Structural Engineering, JSCE Vol. 37A page： 1163-1168 1991.3

Language：Japanese Publishing type：Research paper (scientific journal)

In order to investigate the behavior at the longitudinal and transverse ribs connections of steel deck plates, stress measurements were carried out on two bridges in TOKYO. From the measured stresses, the influence lines of the longitudinal and the transverse ribs were calculated by using inversed problem concepts. F. E. M. analysis was applied to make clear the relationship between various distortion modes and fluctuations of local stress.

Remaining Fatigue Life Evaluation and Life Extension of Steel Bridges Reviewed

Chitoshi Miki,Kazuo Tateishi

Proc.of the 3rd EASEC page： 1017-1022 1991

Fatigue Crack Experiences in Steel Bridges Reviewed

Chitoshi Miki,Kazuo Tateishi,Masahiro Sakano

Proc.of the 3rd EASEC page： 821-828 1991

超音波の数値シュミュレーションと非破壊検査への応用

三木千寿、舘石和雄、高橋政則

土木工学における非破壊評価シンポジュウム講演論文集 page： 43-50 1991

散乱超音波法による欠陥形状識別の試み

三木千寿、舘石和雄、高橋政則、梅田晶一、加藤昌弘

土木工学における非破壊評価シンポジュウム講演論文集 page： 81-86 1991

青森大橋（仮称）上部工の施工計画

石橋忠良，舘石和雄，大庭光商，竹内研一

橋梁と基礎 Vol. 24 ( 6 ) page： 9-16 1990.6

The Effects of Drying Shrinkage on the Design of PRC Structure Reviewed

Kazuo Tateishi,Mitsuaki Ohba,Kenichi Takeuchi,Takeshi Tsuyoshi

Journal of Structural Engineering, JSCE Vol. 36A page： 1185-1190 1990.3

Language：Japanese Publishing type：Research paper (scientific journal)

Prestressed Reinforced Concrete ( PRC ) structure is applied for more than 50 spans of railway bridges. On the design of the PRC structure, the effects of drying shrinkage and creep strain are very important. But even now, the design method to estimate their effects precisely is not established. This paper reports the effects of drying shrinkage and creep strain in some test designs. And through the experimental results and the measurements of an actual PRC bridge, the method to estimate the relation between drying shrinkage and the stress of concrete or reinforcement is investigated.

PRC桁のひびわれ幅に関する一考察 Reviewed

舘石和雄、石橋忠良、津吉毅

コンクリート工学年次論文報告書 Vol. 12 ( 2 ) page： 167-172 1990

Language：Japanese Publishing type：Research paper (scientific journal)

旧国鉄時代から、鉄道橋においてPRC桁は、すでに50連以上の施工実績がある。また、昭和62年には「PRCけた設計指針(案）」を作成するに至っており、その適用は今後さらに一般化するものと思われる。PRC桁は、その使用状態でひび割れ発生を許容する。現在、設計法が、許容応力度設計法から限界状態設計法に移行段階であるが、限界状態設計法において、使用限界状態は、ひびわれとたわみで制御される。従って、ひびわれに関する設計法は非常に重要であり、そのためにも曲げひびわれは場の適切な算定方法の確立が望まれるが、現在までのところ曲げひびわれ幅を適切に評価する手法は必ずしも確立しているとはいえない。そこで、RC桁の若干のプレストレスを導入した現在のPRC桁（アウトケーブル）でひび割れ調査を行い、その結果をもとに、より精度の高い最大ひびわれ幅算定手法を確立するために、ひびわれ幅におよぼす乾燥収縮の影響を中心に考察を行った。

鋼橋の疲労損傷事例の分析とメンテナンス計画への応用

舘石和雄、三木千寿

第１０回設計における信頼性工学シンポジュウム講演論文集 page： 213-218 1990

PC斜張橋斜材定着部の振動対策（ダンパー）について Reviewed

舘石和雄、石橋忠良、斉藤俊樹、竹内研一

コンクリート工学年次論文報告集 Vol. 11 ( 1 ) page： 667-672 1989

Data Base for Fatigue Crackings in Steel Bridges Reviewed

CHitoshi Miki,Kazuo Tateishi,Masahiro Sakano,Yoshinori Fukuoka

J. of Structural Mechanics and Earthquake Engineering, JSCE Vol. I-9 ( 392 ) page： 403-410 1988.4

Language：Japanese Publishing type：Research paper (scientific journal)

Fatigue crackings in 180 steel bridges are summarized and presented as a date base in personal computers. This date base includes the histories of bridge, of structure, types of cracking, causes of cracking and retrofitting methods. By using the reference function of data base, the service life and occurrence of crack of bridges, typical cracks and their causes in various bridge details, and the fatigue strengths of connections are discussed.

Computer Simulation Studies on the Fatigue Load of Highway Bridges Reviewed

Chitoshi Miki,Kazuo Tateishi,Yuji Goto,Jun Murakoshi

Journal of Structural Engineering, JSCE Vol. 32A page： 597-608 1986.3

Language：Japanese Publishing type：Research paper (scientific journal)

The live loads for fatigue design and maintenance of highway bridges are studied by means of computer simulations. Simulations of traffic live loads are carried out under various traffic volumes and constitutions of vehicle types. The type of vehicle, the vehicle weight and the array and headway of vehicles are considered as random variables. Simulated traffic flows are compared with measured traffic flows at eight places on five highways. Bending moment responses of simply supported one lane girders of various lengths are calculated under usual traffic conditions. Moment ranges are obtained by using the rain flow method. For the evaluation fatigue damage, the equivalent moment range and the reduced number of L-20 or T-20 live load are presented.

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