芦山6.1级地震山区典型震害调查与分析  

Typical seismic damage investigation and analysis in Mountain area after Ms 6.1 Lushan earthquake

作　　者：潘毅[1,2] 范元青 任宇 杨兵[1] 侯江荣 熊耀清[3] Pan Yi;Fan Yuanqing;Ren Yu;Yang Bing;Hou Jiangrong;Xiong Yaoqing(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;Key Laboratory of Seismic Engineering of Sichuan Province,Southwest Jiaotong University,Chengdu 610031,China;China Southwest Architectural Design and Research Institute Corp.,Ltd.,Chengdu 610042,China)

机构地区：[1]西南交通大学土木工程学院,四川成都610031 [2]西南交通大学抗震工程技术四川省重点实验室,四川成都610031 [3]中国建筑西南设计研究院有限公司,四川成都610042

出　　处：《土木工程学报》2023年第12期35-48,共14页China Civil Engineering Journal

基　　金：国家自然科学基金(51878559)。

摘　　要：2022年6月1日,四川省雅安市芦山县发生6.1级地震及多次余震,引发了地质灾害,并造成了建筑物的破坏。为掌握此次地震中地质灾害和建筑物震害的情况,对芦山县、宝兴县等地区进行震害调查,分析滑坡、崩塌等地质灾害和建筑物震害的特征和成因,并对地质灾害隐患点数量、地质灾害防治设施的破坏数量和不同结构类型的建筑震害进行统计和分析。调查和分析结果表明:地震诱发滑坡、崩塌,导致道路中断、河道阻塞和被动柔性防护网损坏,地质灾害隐患点数量为143处。各结构类型的建筑震害中,木结构和隔震结构表现良好,无明显震害;砖木结构和砖混结构的震害主要表现为墙体破坏、屋盖破坏、楼面破坏和楼梯间破坏;混凝土结构震害主要表现为填充墙、门窗和吊顶等非结构构件破坏;其中,砖木结构、砖混结构和混凝土结构的严重破坏数量分别占14.2%、23.9%、0%。相比2013年芦山7.0级地震,此次地质灾害隐患点数量仅为2013年的2.78%,房屋破坏数量显著下降,严重破坏占比仅20.7%,且无房屋倒塌。根据山区震害特征及原因,对地质灾害防治、非结构构件的抗震设计、隔震结构的构造措施及管理维护提出建议,以期为山区地质灾害防治和建筑抗震防灾提供参考。On June 1,2022,a Ms 6.1 earthquake and multiple aftershocks occurred in Lushan County,Ya’an City,Sichuan Province,causing geological disasters and damage to buildings.In order to grasp the situation of geological disasters and earthquake damage to buildings in this earthquake,earthquake damage investigations were carried out in Lushan County,Baoxing County and other areas.The characteristics and causes of geological disasters,such as landslides,collapses and earthquake damage to buildings,were analyzed.The number of hidden dangers of geological disasters,the number of the damaged geological disaster prevention and control facilities and the earthquake damages of buildings of different structural types were counted and investigated.The investigation and analysis results show that the earthquake caused landslides and collapse of high and steep slopes,leading to blocking of roads and damages of many passive protection nets.The number of hidden dangers of geological disasters was 143.In all types of buildings damaged by earthquake,the wooden structure and the isolation structure of the building structure performed well without obvious earthquake damage.The damage of brick-wood structure and brick-concrete structure in this earthquake appeared mainly to be wall damage,roof damage,floor damage and stairwell damage.The concrete structure was seismically damaged,and mainly appeared to be the failure of non-structural components,e.g.the failure of infill walls,doors and windows,and suspended ceilings.The seriously damaged ones in brick-wood structures,brick-concrete structures and concrete structures accounted for 14.2%,23.9%and 0%respectively.Compared with the Ms 7.0 Lushan earthquake in 2013,the number of hidden dangers of geological disasters in this earthquake was only 2.78%of that in the Lushan earthquake of 2013.Furthermore,the number of house damages dropped significantly,with seriously damaged ones accounting for only 20.7%,and no houses collapsed.According to the characteristics and causes of earthquake damage

关 键 词：芦山地震 震害调查 山区 地质灾害 建筑震害 

分 类 号：TU352.11[建筑科学—结构工程]