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吴宏磊, 丁洁民
(同济大学建筑设计研究院(集团)有限公司,上海200092)[摘要] 评价超高层建筑在罕遇地震作用下的动力响应是结构抗震设计的一个关键环节。利用非线性分析软件并选择合适的参数对结构进行动力时程分析,可以较精确地反应结构在罕遇地震作用下的整体性能和构件性能,为结构设计提供指导。本文结合ABAQUS和PERFORM-3D两种软件,对弹塑性时程分析的实现方法以及分析过程中需要关注的问题进行了梳理,并给出了一些建议。同时,结合工程实例,研究了超高层建筑在罕遇地震作用下的受力特点,并给出了评价要点。
[关键词] 超高层建筑;弹塑性时程分析;抗震性能;ABAQUS;PERFORM-3D
中图分类号:TU398.2 文献标识码:A 文章编号:1002-848X( 2012) S2-0024-07Some key issues of dynamic elasto-plastic analysis for super high-rise buildings
Wu Honglei,Ding Jiemin
( Tongji Architectural Design( Group) Co., Ltd., Shanghai 200092, China)Abstract: Assessing structural response of super high-rise building under rare earthquake is a critical aspect for structural seismic design. By using nonlinear software with appropriate parameters, stmctural performance and component performance can be precisely observed to work on structural design. In this paper, provided on the ABAQUS and PERFORM-3D platform, the main analysis procedures and some key parameters are outlined for elasto-palstic time-history analysis. Based on engineering practice, the stmctural performance under rare earthquake is studied and evaluation essentials concluded as well.
Keywords: super high-rise building; elasto-plastic time-history analysis; seismic performance; ABAQUS; PERFORM-3D