汶川8.0级地震中各类建筑结构地震易损性统计分析  

Statistical analysis of the seismic vulnerability of various types of building structures in Wenchuan M8.0 earthquake

作　　者：孙柏涛[1] 张桂欣[1] 

机构地区：[1]中国地震局工程力学研究所,黑龙江哈尔滨150080

出　　处：《土木工程学报》2012年第5期26-30,共5页China Civil Engineering Journal

基　　金：国家自然科学基金(50938006);国际科技合作项目(2010DFA71240);国家973计划课题(2007CB714205)

摘　　要：阐述汶川地震中不同类型建筑结构的破坏特点,并对破坏原因进行简要分析。在现场科学调查的近5000个建筑物破坏样本的基础上,对汶川地震中不同烈度区的建筑物的破坏特点进行分析。取得以下成果:掌握了设防砌体结构和未设防砌体结构、底框架结构、钢筋混凝土框架结构的破坏特点,并对上述结构的破坏原因进行初步的分析;统计分析不同烈度区内各建筑物的破坏率;对比分析上述结构在不同烈度区中的易损性。对我国地震工程界认识不同类型结构以及设防与非设防结构的破坏形态及今后修订抗震设计规范有着重要的参考价值。Based on nearly 5000 building samples investigated on site, the damage characteristics of different types of building structures located in regions of different seismic intensities are described and analyzed. Three kinds of structural damage characteristics are summarized： 1 ） fortified masonry structures and unfortified ones; 2） masonry buildings with bottom frame ; 3 ） reinforced concrete frame structures. The damage ratios of these three kinds of buildings under different seismic intensities are obtained and the vulnerabilities compared. It provides a reference for the earthquake damages of different types of structures and fortified and unfortified structure, as well as for revising the seismic design code.

关 键 词：汶川地震 建筑物破坏 统计分析 易损性 

分 类 号：TU375.4[建筑科学—结构工程] P316[天文地球—地震学]