Seismic Vulnerability Analysis of Typical Masonry Structures in Jiaxing City
GU Luoyi
LU Jiyun
YU Gangqun
ZHU Yifei
CHEN Tao
Abstract：Structural vulnerability analysis is one of the important aspects of earthquake disaster risk assessment.This paper took the masonry structure with a large proportion in Jiaxing City as an example,selected the appropri-ate strength index and damage index,and adopted the incremental dynamic analysis method.The amplitude modu-lation of multiple ground motions was carried out to obtain the corresponding structural response structures under the action of each ground motion intensity,and the structural vulnerability curves were analyzed.Finally,the vul-nerability curves of typical masonry structures in Jiaxing City were analyzed.The results of vulnerability analysis show that the typical masonry structure in Jiaxing City can basically meet the local VII seismic fortification require-ments,and the exceedance probability of collapse of the structure is less than 10%under a large earthquake,indi-cating that the structure has good anti-collapse ability.The research results can provide a theoretical basis for the re-fined seismic disaster risk assessment and risk prevention of buildings in Zhejiang Province.
Keywords：Seismic vulnerabilityMasonry structuresInterstory displacement angle
Publication Date：2025-06-30
Online Publishing Date：2025-08-25(First online date of this platform, not the publication date of the document)
Pages：9( 108-116 )