摘要
采用有限元方法对局部区域火灾下门式钢刚架三维整体结构的响应进行了数值模拟分析,得到刚架在温度—结构耦合响应下的变形及其规律,以及区域内构件破坏对整体结构的影响,为局部火灾下大跨度钢结构分析提供有效方法,并对该类结构的实用防火设计提出了建议。
Carried through numerical simulation analysis of steel portal frame of 3D integral structure about response under local fire through finite element approach, the contours and rules of the deformation under thermal-structural coupling response are achieved. The approach has a great significance to provide an effective finite element method to simulate the large span steel structure under local area fire, and puts forward the proposal to the practical fire--resistant design of this kind of structure.
出处
《消防科学与技术》
CAS
北大核心
2009年第5期317-320,共4页
Fire Science and Technology
基金
国家科技支撑计划项目(2008BAJ08B00)
天津建设系统科技发展项目(2006-44)
关键词
区域火灾
门式刚架
防火设计
有限元分析
area fire
portal rigid frame
fire resistant design
finite element analysis
