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OpenSees軟件的前后處理技術(shù)及其在連續(xù)倒塌分析中的應(yīng)用
劉傳卿1'2, 梅佐云1, 孫海峰3
摘 要

 

劉傳卿1'2,  梅佐云1,  孫海峰3
(1山東省建筑科學(xué)研究院,濟南250031;2哈爾濱工業(yè)大學(xué)土木工程學(xué)院,哈爾濱150006;3天頌建設(shè)集團有限公司,臺州317500)
 
[摘要] 為使OpenSees軟件的計算功能得到充分的發(fā)揮,借助ANSYS平臺,利用APDL語言編寫了ANSYS與OpenSees軟件之間的數(shù)據(jù)接口,利用ANSYS強大的前后處理模塊建立有限元模型并顯示計算結(jié)果,從而實現(xiàn)數(shù)值分析的可視化。借助本文編制的數(shù)據(jù)接口程序,針對某鋼框架結(jié)構(gòu)開展了連續(xù)倒塌分析,分析結(jié)果表明:剩余結(jié)構(gòu)的抗倒塌機制依據(jù)破壞位置的不同而發(fā)生改變;在中柱破壞的工況下,剩余結(jié)構(gòu)具備抗彎機制與懸鏈線機制提供抗倒塌承載能力;在邊柱破壞的工況下,剩余結(jié)構(gòu)僅依靠抗彎機制提供抗倒塌承載能力。
[關(guān)鍵詞] 數(shù)據(jù)接口程序;可視化建模;連續(xù)倒塌;抗倒塌機制
中圖分類號:TU352    文獻標識碼:A  文章編號:1002-848X(2012) S2-0213-04
 
Pre- and post-processing technology of OpenSees and application in analytical investigation of progressive collapse
Liu Chuanqing 1,2.Mei Zuoyun 1, Sun Haifeng3
(1 Shandong Provincial Academy of Building Research, Jinan 250031, China; 2 Harbin Institute of Technology, Harbin 150006, China; 3 Tiansong Construction Group Limited Company, Taizhou 317500, China)
 
Abstract: In order to turn OpenSees software to advantage,a new data-interface routine between OpenSees and ANSYS is presented in this paper, using APDL language of ANSYS software, to realize the process of visual modeling and visualization of calculating results. Based on the data-interface routine, an analysis of progressive collapse for planar steel frame structure is camed out. Analytical results show that residual structure has the different resistance mechanism for the different column removal case. In the case of middle column removal, both bending resistance and catenary action resistance become the resistance mechanism of the residual frame structure; on the other hand, only bending resistance could provide resistance capacity of progressive collapse in the case of side column removal.
Keywords: data-interface routine; visual modeling; progressive collapse; resistance mecharusm for collapse
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