山西省高烈度区砖混结构地震易损性分析  

Seismic vulnerability analysis of masonry structure in high-intensity areas of Shanxi province

作　　者：任瑞国 曾金艳[1,2] 李宏伟[1,2] 郝雪景[1,2] 王雷雷 REN Ruiguo;ZENG Jinyan;LI Hongwei;HAO Xuejing;WANG Leilei(Earthquake Administration of Shanxi Province,Taiyuan 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan 030025,China)

机构地区：[1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《世界地震工程》2025年第1期154-164,共11页World Earthquake Engineering

基　　金：地震应急与信息青年重点任务项目(CEAEDEM202304);山西省自然科学研究面上项目(202303021221251)。

摘　　要：针对山西省地震灾害风险评估的本地化需求,基于房屋建筑现场抽样详查获取的砖混结构数据,开展了基本烈度为高烈度区域内不同地市的地震易损性分析,建立了适用于山西省九个地市的城市多层砖混和农村砖混结构房屋的地震易损性模型。在此基础上,采用平均震害指数和损失期望作为区域抗震能力的评估指标,分析了这些地区的砖混结构的抗震能力。研究结果表明:山西省高烈度区的农村砖混结构与国家标准下的未设防砖混结构具备相近的抗震能力;而大同、临汾和晋中三个地市的城市砖混结构则表现出相对较弱的抗震能力。研究成果可为山西省高烈度区砖混结构的地震灾害风险评估与防范提供了重要的参考依据。Aiming at the localization demand of earthquake hazard risk assessment in Shanxi province,this study carried out seismic vulnerability analysis of different cities in the area of high intensity based on detailed sampling of masonry structure data collected from housing construction sites,seismic vulnerability modelling of urban multi-story brick buildings and rural brick buildings in nine cities of Shanxi province.On this basis,the average earthquake damage index and loss expectation are used as the evaluation indexes of regional seismic capacity,and the seismic capacity of masonry structures in these areas is analyzed.The results show that the rural masonry structure in the high intensity area of Shanxi province has similar seismic capacity to the unfortified masonry structure under the national standard.The masonry structures in Datong,Linfen and Jinzhong showed relatively weak earthquake resistance.The research results can provide an important reference for earthquake hazard risk assessment and prevention of masonry structures in high-intensity areas of Shanxi province.

关 键 词：山西省高烈度区 砖混结构 地震易损性 平均震害指数 损失期望 

分 类 号：TU1[建筑科学—建筑理论]