摘要
为了实现复杂结构体系的可靠度分析,基于传统的体系可靠度计算方法PNET法,结合响应面法,提出了改进PNET法,应用改进PNET法对某10层单跨钢结构框架进行位移变形可靠度计算.分析结果表明,应用高次项的改进PNET法能有效地计算串联体系的可靠度,同时较之蒙特卡罗法更加节省计算耗时;并且改进PNET法能有效地反映结构体系各失效模式间的相关关系,更好地反映结构体系的性能,利于结构分析和设计.
To analyze the complicated structural system reliability,based on classical PNET method and response surface method,an advanced PNET method is presented in this paper.The system reliability of a ten-floors steel frame structure is analyzed using the advanced PNET method.Results show that exact results can be abtained using high order term advanced PNET method,and the calculation time is shorter than using Monte Carlo method.The new method effectively reflects the correlation between failure modes of the structure and system,and better reflects the structure performance.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2012年第5期708-712,共5页
Journal of Beijing University of Technology
基金
广东省自然科学基金资助项目(06027195)
关键词
结构体系
可靠度
PNET法
structural system
reliability
PNET method
