单跨门式钢刚架结构在局部火灾下热-结构响应分析  

Analysis on Heat-structure of Steel Portal Frame of One-span under Local Fire

作　　者：张卓[1] 张海[1] 陶员员[1] 

机构地区：[1]天津城市建设学院土木工程系,天津300384

出　　处：《港工技术》2009年第3期31-33,共3页Port Engineering Technology

基　　金：天津市建设系统科技发展项目(2006-44);天津市高等学校科技发展基金项目(20040505)

摘　　要：以整体结构为目标,采用有限元法对单跨门式钢刚架结构中的变截面梁,在局部火灾下的温度分布和在热机耦合场下的结构响应进行数值模拟分析。分析中考虑温度变形影响的几何非线性、随温度升高材料性能的不断变化以及杆件截面温度分布不均匀等因素的影响。本数值模拟方法可供局部火灾下整体结构的抗火性能研究参考。Aiming at the integer structure, the numerical simulation analysis on the temperature distributing of steel portal frame with tampered members under local fire and structure respond of thermal-mechanical couple by the finite element are given. Some factor effects such as geometry non-linearity of temperature response, constant change of material performance with temperature increasing and non-equality distributing of component section temperature and so on are considered in the analysis.The numerica simulation method can be taken as the reference for the research of resisting fire performance of integer structural under local fire.

关 键 词：门式刚架 局部火灾 热机耦合 结构分析 

分 类 号：TU337[建筑科学—结构工程] TU391