Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure

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Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure

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摘要

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 curves and 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 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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《清华大学学报（英文版）》 |2006年第1期|124-130|共7页
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Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089, USA;

Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089, USA;

Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089, USA;

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原文格式 PDF
正文语种 chi
中图分类建筑结构;
关键词
concrete-filled rectangular steel tube; push-over analysis; capacity curve; reinforced concrete;

机译：矩形钢管混凝土;推覆分析;容量曲线;钢筋混凝土;

Push-Over Analysis of the Seismic Behavior of a Concrete-Filled Rectangular Tubular Frame Structure

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