基于震害资料的川西农居地震易损性研究  

Study on the Seismic Vulnerability of Western Sichuan Rural Buildings Based on Seismic Damage Data

作　　者：李建亮 王世元[2] 李福海[3] Li Jianliang;Wang Shiyuan;Li Fuhai(School of Civil Engineering,Sichuan Technology and Business University,Chengdu 611745,China;Earthquake Administration of Sichuan Province,Chengdu 610041,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]四川工商学院,建筑工程学院,成都611745 [2]四川省地震局,成都610041 [3]西南交通大学,土木工程学院,成都610031

出　　处：《震灾防御技术》2023年第4期780-789,共10页Technology for Earthquake Disaster Prevention

基　　金：四川省科技计划项目(2020JDKP0066)。

摘　　要：基于汶川地震等6次典型破坏性地震的震害调查资料,采用基于震害数据调查的经验分析法得出了川西地区农居建筑基于地震烈度的地震易损性矩阵,并采用房屋震害矩阵曲线化分析方法转化计算得出该地区基于地震峰值加速度的地震易损性矩阵。通过分析该地区5类农居建筑的破坏概率和对易损性指数的计算分析,得出不同结构农居建筑的抗震性能排序和抗倒塌能力排序,即穿斗木结构的抗震性能最好,土木结构的抗震性能最差,其余结构类型的抗震性能顺序依次是未设防砖混结构、砖木结构、砖石结构。同时,穿斗木结构的抗倒塌性能最好,然后依次是未设防砖混结构和砖木结构,而土木结构和砖石结构是抗倒塌性能最差的2种结构类型。Based on the seismic damage data of six typical destructive earthquakes such as Wenchuan earthquake,the seismic vulnerability matrix of rural buildings in western Sichuan Province based on seismic intensity is obtained by empirical analysis on the ground of seismic damage data.Then the seismic vulnerability matrix based on peak acceleration is obtained by using the curvilinear analysis method of building damage matrix.Through the calculation and analysis of the damage probability and the vulnerability index,the order of seismic performance of different structures is obtained.In Western Sichuan area,the seismic performance of the timber structure through bucket is best,followed by the unfortified masonry structure,the brick and wood structure,the masonry structure and the civil structure.The anti-collapse performance of the timber structure through bucket is best,followed by the unfortified masonry structure and the brick and wood structure,the civil structure and the masonry structures are the two worst structure types.

关 键 词：川西农居 地震峰值加速度 地震易损性 抗震性能 

分 类 号：P315.9[天文地球—地震学] TU746.1[天文地球—固体地球物理学]