汶川8.0级地震中各类建筑结构地震易损性统计分析

英文篇名：Statistical analysis of the seismic vulnerability of various types of building structures in Wenchuan M8.0 earthquake
中文刊名：土木工程学报
英文刊名：China Civil Engineering Journal
作者：孙柏涛 ; 张桂欣
英文作者：Sun Baitao Zhang Guixin(Institute of Engineering Mechanics ; China Earthquake Administration ; Harbin 150080 ; China)
中文关键词：汶川地震 ; 建筑物破坏 ; 统计分析 ; 易损性
英文关键词：Wenchuan earthquake ; building damage ; statistical analysis ; vulnerability
出版日期：2012-05-15
机构：中国地震局工程力学研究所;
年：2012
期：05
出版单位：土木工程学报

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.

引文

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