温度作用下大跨度索穹顶结构可靠度分析  

Research on Reliability of Large-span Cable Dome Structure Considering Temperature Action

作　　者：刘凯凯[1] 刘占省[2] 吴金志[1] 孙国军[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京市建筑工程研究院有限责任公司,北京100039

出　　处：《施工技术》2015年第2期78-82,共5页Construction Technology

基　　金：国家自然科学基金项目(51278009)

摘　　要：基于响应面法,进行考虑温度作用的索穹顶结构在正常使用极限状态和承载能力极限状态下的可靠度分析。分析了在不同温差作用下索穹顶结构不同失效模式的可靠指标,并得到索穹顶结构在不同失效模式下的可靠性能大致与温度呈线性变化。最后采用蒙特卡罗法来检验响应面法的工程误差,比较结果表明响应面法在计算简便省时的情况下能保证良好的精度。Based on response surface method, the reliability of cable dome structure considering temperature action under serviceability limit states and ultimate limit states was researched. The reliability index of cable dome structure in different failure modes with temperature action was analyzed, and the approximately linear variation of reliable performance of cable dome structure with temperature in different failure modes was obtained. At last, the Monte Carlo method was applied to test engineering errors of response surface method, the results indicate that the good precision of response surface method is guaranteed in the simple and efficient way.

关 键 词：索穹顶 温度作用 响应面法 失效模式 可靠度 

分 类 号：TU323.8[建筑科学—结构工程]