Faculty Profiles - SHIMIZU Masaru

Papers - SHIMIZU Masaru

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Estimation method of strain at drilled hole repaired by adding splice plates Open Access

Kiyokawa Shogo, Tateishi Kazuo, Hanji Takeshi, Shimizu Masaru, Nakayama Yuya

Journal of Structural Engineering, A Vol. 64A ( 0 ) page： 445 - 454 2018

Language：Japanese Publisher：Japan Society of Civil Engineers

Adding splice plates is a commonly used technique to repair fatigue cracks. The crack tip is drilled out before the splice plates are add. In some cases, however, a new fatigue crack initiates from the drilled hole. Because the drilled hole is entirely covered by the splice plates, it is impossible to measure its strain that can be used to assess the crack generation from the drilled hole. The purpose of this study is to propose a method to estimate the strain of the drilled hole by using a reference strain on the splice plate. By conducting parametric FE analyses and loading tests, the location for the reference strain which is strongly correlated with the strain in the drilled hole was proposed.

DOI： 10.11532/structcivil.64a.445

Open Access

CiNii Research

LOW-CYCLE FATIGUE EVALUATION FOR WELDED JOINT OF SHEAR PANEL DAMPER IN MULTIPLE STEEL COLUMNS Open Access

SHIMIZU Masaru, TATEISHI Kazuo, HANJI Takeshi, SUGIYAMA Hiroki, SOGA Yasumasa, ADACHI Riku, NODA Hiroshi

Kou kouzou rombunshuu Vol. 24 ( 96 ) page： 96_17 - 96_29 2017.12

Language：Japanese Publisher：Japanese Society of Steel Construction

Multiple Steel Columns is an earthquake-resistance bridge pier which has shear panel dampers between four steel columns. In the previous study, although the shear panel damper absorbs the seismic energy, low-cycle fatigue crack has been observed around welding of shear panel. In this study, evaluation method of low-cycle fatigue based on local strain range at crack initiation point was applied to crack in shear panel. To simplify calculation of local strain range, relationship between mean shear strain range of shear panel and local strain range at crack initiation point was developed. For quasi-static and dynamic loading condition, crack initiation life was evaluated by simplified estimation method.

DOI： 10.11273/jssc.24.96_17

Open Access

CiNii Research

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 Open Access

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. 第24巻 ( 96号 ) page： pp.17-29 2017.12

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

Hanji T., Tateishi K., Terao N. and Shimizu M.

The International Journal of Material Joining Vol. 61 ( 6 ) page： 1189 - 1197 2017.11

Slip Coefficient and Strength after Slip of High Strength Bolted Friction Joints with Compact Bolt Spacing and Edge Distance Open Access

KIYOKAWA Shogo, TATEISHI Kazuo, HANJI Takeshi, SIMIZU Masaru

Kou kouzou rombunshuu Vol. 24 ( 95 ) page： 95_25 - 95_40 2017.9

Language：Japanese Publisher：Japanese Society of Steel Construction

High strength bolted joints are often used in retrofittings steel bridges members，but sometimes bolts cannot be arranged by following current specification because of narrow spacing. There is no knowledge about the performance of the joints that spaced narrower than current specification. In this paper，we investigated the slip coefficient and the fracture strength of joins that bolts are spaced narrowly by tensile tests and parametric FE analysis. As the result, the slip coefficient is not influenced by the bolt spacing. The fracture strength of compact spacing bolted joints is less than standard spacing，but it can be improved by increasing the plate thickness. The fractures strength was estimated by the conventional method within 10% error.

DOI： 10.11273/jssc.24.95_25

Open Access

CiNii Research

Japan Steel Bridge Competition 2017

葛西昭，木下幸治，宗本理，高井俊和，清水優

橋梁と基礎 Vol. 第51巻 ( 第11号 ) page： pp. 2017

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

Hanji T., Tateishi K. Shimizu M. and Uchda D. and Asano K.

The 70th Annual Assembly of International Institute of Welding Vol. XIII-2698-17 page： pp. 2017

Fatigue Crack Growth Prediction of Welded Joints in Low Cycle Fatigue Region Reviewed

Hanji T., Tateishi K., Terao N. and Shimizu M.

Welding in the World Vol. Vol.61 ( No.6 ) page： pp. 2017

Influence of Shear Panel Shape in Multiple Steel Columns on Low Cycle Fatigue Reviewed

Shimizu M., Tateishi K., Hanji T. and Noda H.

Proceedings of The 9th International Symposium on Steel Structures page： pp.466-469 2017

Evaluation of Repair Effect for Cracked I-Beam End in Railway Steel Bridges Reviewed

Shirai H., Hanji T., Tateishi K., Shimizu M., Iwai M., Ikegashira K. and Niwa Y.

Proceedings of The 9th International Symposium on Steel Structures page： pp.404-407 2017

A Simple Low Cycle Fatigue Assessment Method for Steel Members and Its Application to Bridge Piers under Earthquake Reviewed

Furusaki T., Tateishi K., Hanji T., Shimizu M. and Honda N.

Proceedings of The 9th International Symposium on Steel Structures page： pp.269-272 2017

Fatigue Life Prediction of Corroded Reinforcing Steel Bars Reviewed

Hanji T., Ahmadzai N., Tateishi K. and Shimizu M.

Proceedings of The 9th International Symposium on Steel Structures page： pp.478-481 2017

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

Kiyokawa S., Tateishi K., Hanji T. and Shimizu M.

Proceedings of The 9th International Symposium on Steel Structures page： pp.223-226 2017

Slip Coefficient and Strength after Slip of High Strength Bolted Friction Joints with Compact Bolt Spacing and Edge Distance Reviewed Open Access

Kiyokawa S., Tateishi K., Hanji T. and Shimizu M.

Steel Construction Engineering Vol. 第24巻 ( 95号 ) page： pp.25-40 2017

Influence of Shear Panel Shape in Multiple Steel Columns on Low Cycle Fatigue Reviewed

Shimizu M, Tateishi K, Hanji T, Noda H

Proceedings of The 9th International Symposium on Steel Structures page： pp.466-469 2017

A Simple Low Cycle Fatigue Assessment Method for Steel Members and Its Application to Bridge Piers under Earthquake Reviewed

Furusaki T, Tateishi K, Hanji T, Shimizu M, Honda N

Proceedings of The 9th International Symposium on Steel Structures page： pp.269-272 2017

Evaluation of Repair Effect for Cracked I-Beam End in Railway Steel Bridges Reviewed

Shirai H, Hanji T, Tateishi K, Shimizu M, Iwai M, Ikegashira K, Niwa Y

Proceedings of The 9th International Symposium on Steel Structures page： pp.404-407 2017

Fatigue Life Prediction of Corroded Reinforcing Steel Bars Reviewed

Hanji T, Ahmadzai N, Tateishi K, Shimizu M

Proceedings of The 9th International Symposium on Steel Structures page： pp.478-481 2017

Crack Propagation Life Prediction for Welded Joints in Low Cycle Fatigue Region Reviewed

Hanji T., Terao N., Tateishi K. and Shimizu M.

Proceedings of the 11th Pacific Structural Steel Conference page： pp.625-632 2016

Fatigue Crack Growth Prediction of Welded Joints in Low Cycle Fatigue Region Reviewed

Hanji T., Tateishi K., Terao N. and Shimizu M.

69th Annual Assembly of IIW Vol. XIII-2651-16 page： pp. 2016

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