摘要
研究索杆张力结构在极限状态下的可靠性,利用可靠度分析中的响应面法,对索穹顶结构在极限状态下的可靠性进行分析,并与ANSYS中蒙特卡罗法计算结果进行比较.分析结果表明,响应面法具有足够高的精度;张力结构拉索松弛失效可靠指标不符合规范GB 50068—2001要求,是控制结构失效的主要形式.
In order to better understand the reliability of cable-strut tensile structures under limit states, the Re-sponse Surface Method （ RSM） was employed to analyze the reliabilities of cable-strut tensile structures, and results by RSM were compared with the ones by Monte Carlo Method in software ANSYS. The results show that RSM has a high enough precision in the calculation of reliability for cable-strut tensile structures, and the reliability index of stress relaxation in cable cannot meet the requirement stipulated by GB 50068-2001 , which will become a primary failure mode for consideration in practical application.
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2014年第2期179-186,共8页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(50978228)~~
关键词
结构工程
索杆张力结构
可靠度分析
响应面法
可靠指标
拉索松弛
结构失效
structural engineering
cable-strut tensile structure
reliability analysis
response surface method
reliability index
cable stress relaxation
structure failure
