四川长宁6.0级地震下装配式建筑震害调查及分析  

Investigation and analysis of seismic damage to prefabricated buildings under Sichuan Changning MS 6.0 earthquake

作　　者：邓世斌[1] 吴靖[1] 罗璐 毕琼[1] 雷雨[1] 张瀑 吴勇[3] 王鹏 DENG Shibin;WU Jing;LUO Lu;BI Qiong;LEI Yu;ZHANG Pu;WU Yong;WANG Peng(China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610041,China;Civil Engineering&Architectural Society of Sichuan,Chengdu 610041,China;School of Architecture and Civil Engineering,Xihua University,Chengdu 610041,China;Sichuan Renming Building Industry Technology Co.,Ltd.,Yibin 644000,China)

机构地区：[1]中国建筑西南设计研究院有限公司,成都610041 [2]四川省土木建筑学会,成都610041 [3]西华大学建筑与土木工程学院,成都610041 [4]四川仁铭住宅工业技术有限公司,宜宾644000

出　　处：《建筑结构》2021年第24期97-102,共6页Building Structure

基　　金：中建股份科技研发课题(CSCEC-2019-Z-24)。

摘　　要：四川长宁6.0级地震震区有6栋装配式建筑,这些建筑距离震中约50km,所在区域设防地震烈度为7度(0.10g),邻近的51YBT观测台站实测地震波峰值加速度为59cm/s^(2)。经实地调查,这6栋装配式建筑震后结构构件和连接部位未发现受损现象,主体结构完好,隔墙基本完好。其中项目一和项目二均采用了PC墙板,装配率高。根据实测地震波计算分析结果,项目一在X向、Y向地震作用和项目二在Y向地震作用下的基底剪力超过了项目一和项目二在小震作用下基底剪力,项目一达到了抗规第1.0.1条"小震不坏"的设防目标;PC非承重墙板与主体结构连接方式对整体刚度有较大影响,建议在装配式建筑设计中应考虑PC非承重墙板对整体刚度的影响,并加强PC非承重墙板与主体结构连接构造研究。There are 6 prefabricated buildings in the earthquake zone of Sichuan Changning M6.0 earthquake,which about 50 km away from the epicenter.The earthquake intensity in the area is 7 degrees(0.10 g).The peak acceleration of the seismic wave measured by the nearby 51 YBT observation station is 59 cm/s^(2).After on-site investigation,no damage was found to the structural components and connections of the 6 prefabricated buildings after the earthquake.The main structure is intact,and the partition walls are basically intact.Among them,Project 1 and project 2 both use PC wall panels,and the assembly rate is high.According to the calculation and analysis results of the measured seismic waves,the base shear of project 1 in this earthquake under the action of X-direction and Y-direction earthquakes and project 2 under the action of Y-direction earthquakes exceeded the base shear of project 1 and project 2 under the action of small earthquakes.The fortification goal of “small earthquakes not broken” in Article 1.0.1 of the anti-regulation has been reached for project 1.The connection method of PC non-load-bearing wall panels and the main structure has greater impact on the overall rigidity.It is recommended that the influence of PC non-load-bearing wall panels on the overall rigidity should be considered in the design of prefabricated buildings,and the research on the connection structure of PC non-load-bearing wallboard and the main structure shoud be strengthened.

关 键 词：四川长宁6.0级地震 装配式建筑 震害调查 PC墙板 

分 类 号：TU352.11[建筑科学—结构工程] P315.9[天文地球—地震学]