摘要
基于性能化防火设计方法和结构连续性倒塌设计方法,提出性能化抗倒塌分析方法,并通过开发相应的有限元程序模块(FireStru)连接具体的火场模拟结果,实现结构火灾反应计算过程。其中采用的非线性静力分析方法可以进行结构在局部构件破坏后的抗倒塌分析,并判断结构是否倒塌、是否局部倒塌或是否整体倒塌。最后,通过一具体的体育场馆结构进行验证,从而为其在火灾下的结构安全提供科学依据。
Based on the performance-based fire protection design method and approaches for design against progressive collapse, an anti-collapse analysis approach is proposed and the corresponding finite element program （FireStru） is developed to analyze the response of structure under fire by transmitting the results of fire simulation. The nonlinear static analysis method is used to analyze structure against collapse after local damage and predict the types of collapse such as the local collapse and the global instability. Finally a real gymnasium is analyzed, which provides a scientific basis for the structural safety under fire.
出处
《钢结构》
2007年第8期85-88,共4页
Steel Construction
基金
教育部科学技术研究重点资助项目(03010)
清华大学基础研究基金资助项目(JC2007003)
关键词
性能化设计
连续性倒塌
火场模拟
非线性
performance-based design progressive collapse fire simulation nonlinear
