华南地震2025，Vol.45Issue(3)：89-98,10.DOI:10.13512/j.hndz.2025.03.11
工程系统的多变量极值响应估计与抗震动力可靠性分析
Multivariate Extreme Response Estimation and Seismic Dynamic Reliability Analysis of Engineering Systems
摘要
Abstract
This paper proposed an estimation model of joint distributions of structural system extreme responses under random excitation based on multivariate Gumbel Copula function and generalized extreme distributions,gave the estimation method of model parameters based on response samples,and established the joint probability calculation method of network disjoint shortest paths and cuts based on joint distributions of extreme responses,which is used for effective analysis of the connectivity reliability of the failure dependent engineering systems.The multivariate extreme value estimation of the random seismic response of a six-story shear-building model and the seismic dynamic reliability analysis of the equipment system of substation validate the effectiveness of the estimation model of the joint distributions of the extreme responses of the structure proposed in this paper and the joint probability calculation method of the network disjoint shortest paths and cuts based on the joint distributions of the extreme responses.关键词
结构随机振动/多变量极值响应/工程网络系统/抗震动力可靠性/多元Gumbel CopulaKey words
Structural random vibration/Multivariate extreme responses/Engineering network systems/Seismic dynamic reliability/Multivariate Gumbel Copula分类
建筑与水利引用本文复制引用
吴承宇,何军..工程系统的多变量极值响应估计与抗震动力可靠性分析[J].华南地震,2025,45(3):89-98,10.基金项目
国家自然科学基金项目(51978397) （51978397）
