双跨变截面门式刚架在局部火灾下的温度反应  

Temperature Response Analysis of Steel Portal Frame with Tapered Members with Strides Two Boats at One Time under Local Fire

作　　者：魏金科[1] 张卓[1] 张发凯[1] 

机构地区：[1]天津城市建设学院土木工程系,天津300384

出　　处：《天津城市建设学院学报》2008年第4期248-251,共4页Journal of Tianjin Institute of Urban Construction

基　　金：天津市建设系统科技发展项目(2006-44)

摘　　要：采用有限元法对门式刚架结构中的变截面梁在局部火灾作用下的温度分布进行了数值模拟分析.考虑了温度变形的几何非线性、杆件截面温度不均匀分布等因素的影响,为局部火灾下整体结构的抗火性能研究提供了有效的数值模拟方法.Numerical simulation analysis of steel portal frame with tapered members about temperature distribution under fire is carried out by finite element approach. Effects of some factors, such as geometry non-linearity of temperature response, non-equality distribution of component section temperature and so on, are considered, and effective numerical value simulation approach for the research of fire resistance performance of integer structural under local fire is offered.

关 键 词：门式刚架 局部火灾 有限元 变截面梁 温度场 

分 类 号：TU982[建筑科学—城市规划与设计]