常用彈塑性分析軟件在建筑結構推覆分析中的計算對比
焦柯1，吳桂廣2
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(1 廣東省建筑設計研究院，廣州510010； 2 廣東工業(yè)大學, 廣州 510006)［摘要］比較了常用彈塑性分析軟件的推覆分析功能，分析了塑性鉸模型和纖維束模型在模擬梁柱構件上的差異，纖維束模型、殼元損傷模型和彈塑性墻元模型在模擬剪力墻構件上的差異。通過四個算例對比了五個軟件的計算結果，發(fā)現(xiàn)各軟件計算的結構承載能力存在較大差異。分析了各軟件計算結果不同的原因，供設計人員在進行結構推覆分析時參考。［關鍵詞］彈塑性分析軟件；推覆分析；塑性鉸；纖維束；彈塑性墻元中圖分類號：TU313-3文獻標識碼：A文章編號：1002-848X(2011)05-0115-05Contrast calculation of commonly used elasto-plastic analysis softwares in pushover analysis of building structureJiao 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作者簡介：焦柯，教授級高級工程師，Email：gscad@21cn.com。參考文獻［1］GB50011—2010建筑抗震設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2010.［2］廣東省建筑設計研究院. 建筑結構彈塑性靜力和動力分析軟件GSNPA說明書［M］. 2010.［3］北京金土木軟件技術有限公司. ETABS中文版使用指南［M］. 北京：中國建筑工業(yè)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］. ATC40,1996.［6］北京邁達斯技術有限公司. MIDAS非線性分析說明書［M］. 2009.［7］ABAQUS, Inc. ABAQUS theory manual(v6-7-1)［M］. 2007.［8］中國建筑科學研究院建研科技股份有限公司.多層及高層建筑結構彈塑性靜力、動力分析軟件EPDA［M］. 2008.
