Faculty Profiles - HIBINO, Yo

Papers - HIBINO, Yo

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Outline Of Field Investigation Results By The Türkiye-Japan Joint Reconnaissance Team International coauthorship

Koichi Kusunoki, Alper Ilki, Yo Hibino, Seitaro Tajiri, Yusuke Maida

fib Symposium page： 254 - 263 2024.11

Language：English Publishing type：Research paper (international conference proceedings)

Due to the preliminary information on the devastating damage in the affected area due to the 2023 Türkiye-Syria Earthquakes, AIJ (Architectural Institute of Japan) JSCE (Japan Society of Civil Engineering), JGS (Japan Geotechnical Society), and Grantsin- Aid for Scientific Research team decided to organize a joint reconnaissance team. The team consisted of 27 members from Japan and 22 members from Türkiye. It was the largest international investigation team for AIJ. The target items to be investigated were Reinforced concrete (R/C), Steel, Wall-type, Masonry, Hospital, Base-isolated structures, Geotechnical issues, Strong motion characteristics, and code systems. The building damage around the strong motion observation stations was investigated to confirm if the building damage coincided with the level of measured accelerations. The widespread damages and collapses to R/C buildings showed that the structures did not have sufficient displacement capacity due to insufficient amount and detailing of transverse reinforcement. Also, the spacing between longitudinal rebars at the lap splice joints is insufficient and does not allow the proper concrete placement for achieving a sufficient bond between concrete and reinforcement. Many buildings were inclined due to uneven settlement in Gölbaşı (mostly due to liquefaction), where the soil condition was poor. The pile foundation is recommended for buildings on soft soil. A detailed investigation was also conducted to collect the dimensions of members, span lengths and heights, and material properties so that the buildings can be modeled on a computer. The code compliance system in the affected area and recovery plan were also investigated. As the conclusions, the findings and lessons from this earthquake damage were summarized. The effects of sequences of strong seismic activities as experienced during the 2023 Türkiye-Syria Earthquakes should also be further investigated.

Scopus

パイルキャップが先行破壊する既製杭基礎接合部の補強筋の効果 Reviewed

日比野陽, 高橋広生, 楠浩一, 向井智久

コンクリート工学年次論文集 Vol. 45 ( 2 ) page： 541 - 546 2023.7

Application of Digital Image Correlation Method in RC and FRC Beams under Bending Test Reviewed International coauthorship

Aris Aryanto, Messa Revolis, Yuki Oribe, Yo Hibino

International Journal of GEOMATE Vol. 24 ( 101 ) page： 118 - 125 2023.1

Evaluation of thermal crack width and crack spacing in massive reinforced concrete structures subject to external restraints using RBSM Reviewed

Puttipong Srimook, Ippei Maruyama, Kazutoshi Shibuya, Sayuri Tomita, Go Igarashi, Yo Hibino, Kazuo Yamada

ENGINEERING FRACTURE MECHANICS Vol. 274 2022.10

Language：English Publishing type：Research paper (scientific journal) Publisher：PERGAMON-ELSEVIER SCIENCE LTD

This study aimed to develop a numerical method to evaluate thermal cracking, in terms of pa-rameters such as thermal crack width and crack spacing, on massive reinforced concrete (RC) wall structures externally restrained by a base structure. The existing experimental study was inves-tigated using the rigid body-spring model (RBSM) with new constitutive laws developed for this objective. Thermal cracks, which localized and propagated throughout the wall thickness, were successfully reproduced, and the good agreement with the experiment indicated the capability of the proposed numerical method. The time-dependent cracking behavior and the impacts of fac-tors affecting thermal cracking, which are difficult to investigate experimentally, are discussed.

DOI： 10.1016/j.engfracmech.2022.108800

Web of Science

Scopus

E-Defense Shake-table Test of a Building Designed for Post-disaster Functionality Reviewed

Trevor Zhiqing Yeow, Koichi Kusunoki, Izumi Nakamura, Yo Hibino, Satoru Fukai, Walid Ahmad Safi

JOURNAL OF EARTHQUAKE ENGINEERING Vol. 26 ( 10 ) page： 5153 - 5174 2022

抵抗機構に基づくRC柱部材の理論的な降伏変形評価法 Reviewed

趙波，日比野陽，浅井竜也，勅使川原正臣

コンクリート工学年次論文集 Vol. 43 ( 1 ) page： 85 - 90 2021.7

Impact of Drying on Structural Performance of Reinforced Concrete Beam with Slab. Reviewed

Pranjal Satya, Tatsuya Asai, Masaomi Teshigawara, Yo Hibino, Ippei Maruyama

Materials (Basel, Switzerland) Vol. 14 ( 8 ) 2021.4

壁縦筋の定着の有無が袖壁付柱の短期許容曲げ耐力に与える影響 Reviewed

百家祐生, 真田靖士, 張政, 尹ロク現, 楠浩一, 日比野陽, 向井智久

日本建築学会構造系論文集 Vol. 85 ( 778 ) page： 1611 - 1621 2020.12

INITIAL DAMAGE OBSERVATIONS FROM AN E-DEFENSE SHAKE TABLE TEST OF A BUILDING WITH POST-DISASTER FUNCTIONS Reviewed

Trevor YEOW, Koichi KUSUNOKI, Izumi NAKAMURA, Yo HIIBNO

Proceedings of the Japan Concrete Institute Vol. 42 ( 2 ) page： 739 - 744 2020.7

Impact of the reinforcement detailing on seismic performance of isolated non-structural walls Reviewed

Safi W.A

Buildings Vol. 10 ( 5 ) 2020.5

The structural performance of reinforced concrete members with monolithic non-structural walls under static and dynamic loads Reviewed

Safi Walid Ahmad, Hibino Yo, Kusunoki Koichi, Mukai Tomohisa, Sanada Yasushi, Nakamura Izumi, Fukai Satoru

Buildings Vol. 10 ( 5 ) 2020.5

EVALUATION OF BOND STRESS OF CUT-OFF SECOND LAYER LONGITUDINAL BARS WITH ADDITIONAL STIRRUPS IN HIGH-STRENGTH REINFORCED CONCRETE BEAMS Reviewed

HIBINO Yo, ICHINOSE Toshikatsu, MIYATA Hideki, YAGI Shigeharu, KUSUHARA Fumio

Journal of Structural and Construction Engineering (Transactions of AIJ) Vol. 85 ( 770 ) page： 551-561 - 561 2020.4

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

Aiming to increasing of workability and productivity of construction of high-rise reinforced concrete buildings, cut-off longitudinal bars in the second layer has been used. However, it is known that flexural cracks tend to open at termination point, and it leads to develop diagonal tension cracks. In addition, high-strength materials have been used for longitudinal and transverse reinforcements. In this study, to assess failure behavior, seismic performance of reinforced concrete beams having cut-off longitudinal bars with high-strength concrete and steels, test of beams which reinforcement ratio are 0.3−1.2% were carried out. Additional stirrups were installed to prevent crack around the head of the cut-off longitudinal bars.
For the test, four-teen 1/2.5-scaled test specimens of reinforced concrete beams were fabricated. The size of cross-section (250mm×400mm) is the same for all specimens as shown in Fig. 1(a). Five longitudinal bars were arranged in both the first and second layers, and the five longitudinal bars in the second layer is cut off. The main parameters are presence of cut-off longitudinal reinforcement, ratio of transverse reinforcement and location of additional stirrups. The parameters of beams are shown in Table1. The ratio of transverse reinforcements was arranged as follows: 0.3%, 0.6% and 1.2%. The additional stirrups were placed with two types of arrangement manner, which are placed in the head of cut-off longitudinal bars and in the region of middle of beams including in the head of cut-off longitudinal bar as shown in Fig. 1(c). Concrete compressive strengths of beams were from 54 to 77 N/mm2 . High-strength steel bars were used for longitudinal, transverse reinforcement and additional stirrups. The length of the beam was designed to 1600mm. The cut-off length of 680 mm corresponds to required length of cut-off longitudinal bars specified in AIJ standard.
Cyclic loading was applied with antisymmetric moment so that horizontal load is applied to the center of the beam as shown in Fig. 2. From the tests, following conclusions were obtained. 1) It is better to place the additional stirrups both in the head of cut-off longitudinal reinforcement and the region where longitudinal bar is placed in one layer to prevent undesirable cracks; 2) Smaller width of residual cracks of the beam with additional stirrups in the head of cut-off longitudinal bars was found. Shear capacity of the beam with additional stirrups was increased by arrangement of additional stirrups; 3) The maximum bond stress in the head of cut-off longitudinal bars was larger than bond strength calculated by AIJ standard; however, difference in maximum bond stress by arrangement of additional stirrups was not observed; 4) It is verified that maximum bond stress of cut-off longitudinal bars at the head region with additional stirrups can be predicted by present AIJ standard.

DOI： 10.3130/aijs.85.551

Scopus

Estimation of site response during the 2016 Chauk, Myanmar earthquake based on microtremor-derived S-wave velocity structures Reviewed

Miura Hiroyuki, Fujita Hidetaka, Than Khaing Su Su, Hibino Yo

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING Vol. 126 2019.11

Prediction of Torsional Response of Multi-story Shear Wall Buildings and Its Verification

Yo Hibino, Chiaki Yonehara, Shunsuke Inoue

Proceedings of 2nd International Workshop on Advanced Materials and Innovative Systems in Structural Engineering: Novel Researches 2019.9

Structural performance of reinforced concrete members with non-structural walls without anchorage of wall reinforcement

Yo Hibino, Yasushi Sanada, Koichi Kusunoki

Proceedings of International Conference in Commemoration of 20th Anniversary of the 1999 Chi-Chi Earthquake page： SE11-024 2019.9

EXPERIMENTAL STRUCTURAL PERFORMANCE EVALUATION OF RC COLUMNS WITH WING WALLS WITHOUT WALL VERTICAL REBAR ANCHORAGE Reviewed

Misako TSUBAKI, Yasushi SANADA, Zheng ZHANG, Koichi KUSUNOKI, Yo HIBINO, Tomohisa MUKAI

Journal of structural and construction engineering Vol. 84 ( 762 ) page： 1093-1103 2019.8

高強度せん断補強筋を有するRC柱部材の付着割裂時せん断耐力 Reviewed

小本直弥, 日比野陽, 市之瀬敏勝, 宮田英樹

コンクリート工学年次論文集 Vol. 41 ( 2 ) page： 121-126 2019.7

都市防災への活用を目的とした建築物の瞬時被害把握システム

日比野陽

建設機械 Vol. 55 ( 6 ) page： 48-53 2019.6

都市防災への活用を目的とした建築物の瞬時被害把握システムの開発 (特集防災,災害対応・復旧・復興,国土強靭化)

日比野陽

建設機械施工 Vol. 70 ( 12 ) page： 49-55 2018.12

E-DEFENSE SHAKING TABLE TEST ON SOIL-PILE-STRUCTURE INTERACTION SYSTEM Evaluation of earthquake response of pile-supported RC structure Part 1 Reviewed

Masatoshi YAMAZOE, Koichi KUSUNOKI, Yuji SAKO, Hajime OKANO, Yo HIBINO, Kuniyoshi SUGIMOTO, Yohsuke KAWAMATA, Hisatoshi KASHIWA

Journal of structural and construction engineering Vol. 83 ( 749 ) page： 985-995 2018.7

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Papers - HIBINO, Yo