九寨沟7.0级地震房屋震害现场调查及其破坏特征

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英文篇名：Field Investigation and Failure Characteristics of Buildings Damaged by the 7.0-Magnitude Earthquake in Jiuzhaigou 作者：张令心 ; 朱柏洁 ; 陶正如 ; 陈相兆 英文作者：ZHANG Lingxin;ZHU Baijie;TAO Zhengru;CHEN Xiangzhao;Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics,China Earthquake Agency; 关键词：九寨沟地震 ; 7.0级强震 ; 抗震措施 ; 震害特征分析 ; 房屋破坏比 英文关键词：Jiuzhaigou earthquake;;M7.0 earthquake;;aseismic measure;;seismic damage characteristics;;damage ratio of houses 中文刊名：ZBDZ 英文刊名：China Earthquake Engineering Journal 机构：中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室; 出版日期：2019-07-18 出版单位：地震工程学报 年：2019 期：v.41 基金：中国地震局工程力学研究所基本科研业务费专项资助项目(2017QJGJ08),中国地震局创新团队发展计划资助 语种：中文; 页：ZBDZ201904030 页数：7 CN：04 ISSN：62-1208/P 分类号：233-239

摘要

2017年8月8日四川省阿坝州九寨沟县发生7.0级地震,震源深度20 km,造成大量房屋不同程度的破坏,引发地质灾害。针对Ⅷ、Ⅸ区的337栋不同结构类型的房屋进行了震害特征分析,给出震害矩阵,揭示各类结构房屋的破坏机理。经过统计,所调查的房屋中3.3%的建筑保持完好,19.9%的建筑发生轻微破坏,51.3%的建筑发生中等破坏,21.1%的建筑发生严重破坏,4.5%的建筑发生毁坏。经过调查,钢筋混凝土框架结构、大跨度空间结构、钢框架结构以及采用木板作为填充墙的穿斗式木构架房屋在本次地震中表现良好。分析表明,经过合理的抗震设计,基本达到了中震可修的抗震设防目标,极大程度地保护了人们的生命及财产安全。
        The 7.0-magnitude earthquake that occurred in Jiuzhaigou on August 8, 2017, which featured a focal depth of 20 km, caused damage to a large number of houses. Analysis of seismic damage characteristics of 337 buildings with different types of structures in areas VIII and IX revealed the failure mechanism of each type of building. Statistics indicated 3.3% well-kept buildings, 19.9% slightly damaged buildings, 51.3% moderately damaged buildings, 21.1% severely damaged buildings, and 4.5% destroyed building. Field investigation suggested that reinforced concrete frame structures, large-span spatial structures, steel-frame structures, and Chuandou-type timber structures with infilled walls of wood present good seismic performance. The analysis results indicated that the structures surveyed basically fulfill the seismic fortification criterion of "repairable under moderate earthquake," and, thus, the lives and personal property of residents may be considered to be greatly protected.

引文

[1] WANG Hongwei,REN Yefei,WEN Ruizhi.Source Spectra of the 8 August 2017 Jiuzhaigou MS7.0 Earthquake and the Qua-lity Factor of the Epicenter Area[J].Chinese Journal of Geophysics,2017.
    [2] 中国地震烈度表:GB/T 17742-2008[S].北京:中国标准出版社,2009.The Chinese Seismic Intensity Scale:GB/T 17742-2008[S].Beijing:Standards Press of China,2009.
    [3] 中华人民共和国国家标准:GB 5011-2010建筑抗震设计规范[S].北京:中国标准出版社,2011.Code for Seismic Design of Buildings:GB50011-2010[S].Beijing:Standards Press of China,2010.
    [4] http://www.cea.gov.cn/publish /dizhenj/464/478/20170812211337414565961/index.html.
    [5] 滕睿,曲哲,张永群.川南地区穿斗式木构架民居的动力特性[J].世界地震工程,2014,30(3):229-234.TENG Rui,QU Zhe,ZHANG Yongqun.Dynamic Characteristics of Chuandou-type Timber Houses in Southern Sichuan[J].World Earthquake Engineering,2014,30(3):229-234.
    [6] 熊立红,吴文博,孙悦.汶川地震作用下约束砌体房屋的抗震能力分析[J].土木工程学报,2012,45(增刊2):103-108.XIONG Lihong,WU Wenbo,SUN Yue.Seismic Performance of Confined Masonry Buildings During the Wenchuan Earthquake[J].China Civil Engineering Journal,2012,45(Supp2):103-108.
    [7] 闫培雷,孙柏涛,张昊宇.芦山7.0级强烈地震钢筋混凝土框架结构教学楼震害[J].土木工程学报,2014,47(增刊1):24-28.YAN Peilei,SUN Baitao,ZHANG Haoyu.Seismic Damage to RC Frame Teaching Buildings in Lushan MS7.0 Earthquake[J].China Civil Engineering Journal,2014,47(Supp1):24-28.
    [8] 建(构)筑物地震破坏等级划分规范:GB/T 24335-2009[S].北京:中国标准出版社,2009.Classification of Earthquake Damage to Buildings and Special Structures:GB/T24335-2009[S].Beijing:Standards Press of China,2009.