文章基本信息

标题：Analysis of Seismic Fragility of Aqueduct Structure Based on Copula Function
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作者：Yina Zhang ; Gege Cheng ; Shuai Zhang 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：4
页码：1-6
DOI：10.1088/1755-1315/304/4/042061
出版社：IOP Publishing
摘要：Establishing the joint probability distribution function directly of the basic components in the aqueduct system is hard, because of the correlation of seismic demand among components in structural vulnerability analysis. This paper proposed a new method for analyzing the vulnerability of aqueduct structure. A two-dimensional Copula function is introduced to describe the related structures of component seismic demands and simplify the modeling process of joint distribution function. The results show that the failure probability calculated based on Copula function is between the upper and lower bounds of the first-order boundary method. The results help to simplify the modeling process of the aqueduct system vulnerability curve, and at the same time, providing a new way to study the correlation between seismic demand of aqueduct components.