钢管混凝土结构的地震反应分析*
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（北京科技大学土木系，北京 100083）[摘要] 对一实际的钢管混凝土结构进行三维有限元地震反应分析。在有限元分析过程中，分别采用刚度等效法和钢管混凝土统一理论法进行建模。随后对结构进行模态分析和时程反应分析，并比较了两个有限元模型计算结果的差别，可供相关工程设计参考。[关键词] 钢管混凝土; 有限元; 地震反应分析中图分类号：TU352 文献标识码：A 文章编号：1002-848X(2013)S2-0464-03Seismic response analysis of concrete-filled steel tubes structuresGuo Yong, Pan Danguang(Department of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, China)Abstract: Seismic response analysis of a CFST (concrete-filled steel tubes) structures is completed by using space FEM (finite elements method). During the FEM analysis, the modals are required according as section conversion method and CFST united theory respectively. Then mode analysis and transient analysis are calculated. At the same time, the difference of results between the two modals is compared. The results have referential value for similar engineering.Keywords: concrete-filled steel tube; FEM; seismic response analysis
