(1 广东省建筑设计研究院，广州510010； 2 广东工业大学, 广州 510006)

［摘要］比较了常用弹塑性分析软件的推覆分析功能，分析了塑性铰模型和纤维束模型在模拟梁柱构件上的差异，纤维束模型、壳元损伤模型和弹塑性墙元模型在模拟剪力墙构件上的差异。通过四个算例对比了五个软件的计算结果，发现各软件计算的结构承载能力存在较大差异。分析了各软件计算结果不同的原因，供设计人员在进行结构推覆分析时参考。

［关键词］弹塑性分析软件；推覆分析；塑性铰；纤维束；弹塑性墙元

中图分类号：TU313-3文献标识码：A文章编号：1002-848X(2011)05-0115-05

Contrast calculation of commonly used elasto-plastic analysis softwares in pushover analysis of building structure

Jiao Ke¹，Wu Guiguang²(1 The Architectural Design and Research Institute of Guangdong Province，Guangzhou 510010，China；2 Guangdong University of Technology，Guangzhou 510006，China)

Abstract:The pushover analysis functions of commonly used elasto-plastic analysis softwares were compared, the differences between plastic hinge model and the fiber model for beams, and the differences between fiber model, shell element model and elasto-plastic damage model for shear walls were analyzed. Based on the calculation results of four buildings, it is found that the bearing capacity of the structure calculated by different softwares are quite different. The reasons were analyzed and discussed, which can be referred to the actual structural pushover analysis.

Keywords:elasto-plastic analysis software； pushover analysis； plastic hinge model； fiber model； elasto-plastic wall element

作者简介：焦柯，教授级高级工程师，Email：gscad@21cn.com。

参考文献

［1］GB50011—2010建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.

［2］广东省建筑设计研究院. 建筑结构弹塑性静力和动力分析软件GSNPA说明书［M］. 2010.

［3］北京金土木软件技术有限公司. ETABS中文版使用指南［M］. 北京：中国建筑工业出版社，2004.

［4］FEMA273,FEMA274,FEMA356,NEHRP guidelines for the rehabilitation of buildings ［S］. Washington,D.C.: Federal Emergency Management Agency,1996.

［5］Applied Technology Council. Seismic evaluation and retrofit of concrete building［R］. ATC40,1996.

［6］北京迈达斯技术有限公司. MIDAS非线性分析说明书［M］. 2009.

［7］ABAQUS, Inc.  ABAQUS theory manual(v6-7-1)［M］. 2007.

［8］中国建筑科学研究院建研科技股份有限公司.多层及高层建筑结构弹塑性静力、动力分析软件EPDA［M］. 2008.