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| 顶部偏心缩进结构的扭转效应 | |
| 引用本文： | 康定有,蔡贤辉,仲伟秋,张宏民.顶部偏心缩进结构的扭转效应[J].沈阳大学学报,2014,26(6):491-497. |
| 作者姓名： | 康定有 蔡贤辉 仲伟秋 张宏民 |
| 作者单位： | 1. 海军大连舰艇学院院务部,辽宁大连,116018 2. 大连理工大学运载工程与力学学部,辽宁大连,116023 3. 大连理工大学司法鉴定中心,辽宁大连,116023 4. 悉地(北京)国际建筑设计顾问有限公司,北京,100013 |
| 摘 要： | 对立面不一致结构,即顶部楼层有局部偏心缩进的房屋建筑的弹塑性地震反应进行分析.以一理想的5层钢筋混凝土框架结构为例,分析了顶部偏心缩进25%、50%、75%等不同偏心缩进率结构在单向地震动输入下的弹塑性扭转效应.结果表明：顶部楼层的局部偏心缩进对结构的弹性反应将产生明显的影响;结构进入弹塑性运动后,平扭耦合运动的程度减小,偏心缩进对构件的最小延性要求影响较小. |
| 关 键 词： | 地震反应 弹塑性 偏心结构 扭转效应 |
Effects of Eccentric Setback at Top Storey on Inelastic Seismic Responses of Buildings |
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| Kang Dingyou,Cai Xianhui,Zhong Weiqiu,Zhang Hongmin.Effects of Eccentric Setback at Top Storey on Inelastic Seismic Responses of Buildings[J].Journal of Shenyang University,2014,26(6):491-497. | |
| Authors: | Kang Dingyou Cai Xianhui Zhong Weiqiu Zhang Hongmin |
| Institution: | Kang Dingyou , Cai Xianhui , Zhong Weiqiu, Zhang Hongmin (1. Affairs Department, Dalian Naval Academy, Dalian 116018, China; 2. Faculty of Vehicle Engineering and Mechanics;3 Judicial Authentication Center, Dalian University of Technology, Dalian 116023, China; 4. CCD(Beijing) International Architectural Design Consulting Co. ,LTD. , Beijing 100013, China) |
| Abstract: | The inelastic seismic responses of buildings with local eccentric setback at top storey are researched by time history analysis method.Using an ideal five-storey reinforced concrete frame building as example,the inelastic torsional coupled effects of the buildings with different setback ratios of 25%,50% and 75% of the top storey area,on one direction excitation,are presented.The results show that the setback at top storey would cause significant effects on the elastic seismic response.However,it would reduce the torsional coupled responses and only cause slight effects on the minimum ductility demand of the lateral resisting element while in inelastic range. |
| Keywords: | seismic response inelastic asymmetric building coupled response |
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