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Experimental Performance of a Full-Scale Spatial RC Frame with Buckling-Restrained Braces Subjected to Bidirectional Loading
| 题名： | Experimental Performance of a Full-Scale Spatial RC Frame with Buckling-Restrained Braces Subjected to Bidirectional Loading |
| 正文语种： | eng |
| 作者： | Tan, Qiyang;Wu, Bin;Shi, Pengfei;Xu, Guoshan;Wang, Zhen;Sun, Jianyun;Lehman, Dawn E. |
| 作者单位： | Harbin Inst Technol Sch Civil Engn Harbin 150090 Peoples R China;Harbin Inst Technol Sch Civil Engn Harbin 150090 Peoples R China|Wuhan Univ Technol Sch Civil Engn & Architecture Wuhan 430070 Peoples R China;China Construct Sci & Technol Grp Corp Ltd Si Chum Branch Beijing 100195 Peoples R China;Harbin Inst Technol Sch Civil Engn Harbin 150090 Peoples R China;Wuhan Univ Technol Sch Civil Engn & Architecture Wuhan 430070 Peoples R China;China State Construct Engn Corp Ltd Tech Ctr Expt Testing Ctr Beijing 101300 Peoples R China;Univ Washington Dept Civil & Environm Engn Seattle WA 98107 USA |
| 关键词： | Buckling-restrained brace (BRB);RC frame;Seismic performance;Full-scale pseudodynamic substructure test;Bidirectional loading;Gusset connection |
| 摘要： | To investigate the performance of a RC frame with buckling-restrained braces (RCF-BRB) subjected to bidirectional earthquakes, a full-scale two-story RCF-BRB was tested using substructural pseudodynamic, quasi-static, and pushover techniques. The test results showed that the RCF-BRB designed based on the current Chinese building codes exhibited reliable seismic performance, because the selected performance objectives were achieved in the tests. The specimen displayed an effective and stable energy-dissipating capacity even when the interstory drift exceeded 3%. The pushover test revealed excellent deformation capacity of the RCF-BRB, because the interstory drift ratio reached 5.9% in both loading directions. Compared with conventional gusset plates, the unconstrained gusset plates reduced the damage of the RC members significantly. The strut-and-tie model was confirmed to be reliable for the design of discontinuity regions (D-regions) of the RC beam ends with unconstrained gusset plates. (C) 2020 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 147 |
| 期： | 3 |
| 页码： | 04020352.1-04020352.20 |
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