刘传卿1'2，  梅佐云1，  孙海峰3

(1山东省建筑科学研究院，济南250031;2哈尔滨工业大学土木工程学院，哈尔滨150006；3天颂建设集团有限公司，台州317500)

 

[摘要] 为使OpenSees软件的计算功能得到充分的发挥，借助ANSYS平台，利用APDL语言编写了ANSYS与OpenSees软件之间的数据接口，利用ANSYS强大的前后处理模块建立有限元模型并显示计算结果，从而实现数值分析的可视化。借助本文编制的数据接口程序，针对某钢框架结构开展了连续倒塌分析，分析结果表明：剩余结构的抗倒塌机制依据破坏位置的不同而发生改变；在中柱破坏的工况下，剩余结构具备抗弯机制与悬链线机制提供抗倒塌承载能力；在边柱破坏的工况下，剩余结构仅依靠抗弯机制提供抗倒塌承载能力。

[关键词] 数据接口程序；可视化建模；连续倒塌；抗倒塌机制

中图分类号：TU352    文献标识码：A  文章编号：1002-848X(2012) S2-0213-04

 

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