| Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure |
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| 作者姓名： | 聂建国 秦凯 肖岩 |
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| 作者单位： | Department of Civil Engineering Tsinghua University，Beijing 100084 China，Department of Civil Engineering Tsinghua University，Beijing 100084 China，Department of Civil Engineering University of Southern California Los Angeles CA 90089 USA |
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| 基金项目： | Supported by the Overseas Youth Cooperative Foundation of the National Natural Science Foundation of China (No. 50128807) |
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| 摘 要： | Introduction Over the past twenty years the static push-over proce- dure has been presented and developed by several au- thors, including Saiidi and Sozen1], Fajfar and Gasper- sic2], Bracci et al.3], amongst others. This method is also described and r…
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| 关 键 词： | 钢筋混凝土 容积曲线 混凝土填充矩形管形桁架结构 地震 推倒分析 |
| 收稿时间： | 2004-06-30 |
| 修稿时间： | 2004-06-302004-11-07 |
Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure |
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| Jianguo Nie, &#x;ý, Kai Qin, ï,Yan Xiao, &#x;Ê.Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure[J].Tsinghua Science and Technology,2006,11(1):124-130. |
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| Authors: | Jianguo Nie &#x;ý Kai Qin ï Yan Xiao &#x;Ê |
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| Institution: | Department of Civil Engineering, Tsinghua University, Beijing 100084, China; Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089, USA |
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| Abstract: | To investigate the seismic behavior of concrete-filled rectangular steel tube (CFRT) structures, a push-over analysis of a 10-story moment resisting frame (MRF) composed of CFRT columns and steel beams was conducted. The results show that push-over analysis is sensitive to the lateral load patterns, so the use of at least two load patterns that are expected to bound the inertia force distributions is recommended. The M- curves and N-M interaction surfaces of the CFRT columns calculated either by Han's formulae or by the USC-RC program (reinforced concrete program put forward by University of Southern Califonia) are suitable for future push-over analyses of CFRT structures. The P- effect affects the MRF seismic behavior seriously, and so should be taken into account in MRF seismic analysis. In addition, three kinds of RC structures were analyzed to allow a comparison of the earthquake resistance behavior of CFRT structures and RC structures. The results show that the ductility and seismic performance of CFRT structures are superior to those of RC structures. Consequently, CFRT structures are recommended in seismic regions. |
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| Keywords: | concrete-filled rectangular steel tube push-over analysis capacity curve reinforced concrete |
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