摘要
积石山M_(s)6.2级地震造成震区村镇房屋大量损坏及倒塌,震损高于近年同级地震。为分析震损严重的原因,对震后灾区房屋安全情况进行现场调查。通过对比实测地震动强度与当地抗震设防指标,发现实际地震烈度高于设防烈度。通过分层次分析造成房屋震害的因素,发现影响房屋抗震性能的主要因素有场地效应、房屋结构体系抗侧移能力、建筑材料、施工工序及使用维护等。为提高村镇房屋抗震能力,提升农村防灾减灾能力,提出了该类房屋设计与建造方面的注意事项。
The Jishishan M_(s)6.2 earthquake caused a large number of damage and collapse of houses in the affected villages and towns,and the damage was higher than that caused by earthquakes of the same magnitude in recent years.To analyze the causes of severe earthquake damage,the on⁃site investigation was carried out on the the safety situation of houses in post earthquake disaster areas.Through comparing the measured seismic intensity with the local seismic fortification index,it was found that the actual intensity of this earthquake was higher than the fortification intensity.Through a hierarchical analysis of the factors causing building damage,it was found that the main factors affecting the seismic performance of buildings include site effects,the ability of building structural systems to resist lateral displacement,building materials,construction processes,and maintenance etc.In order to improve the seismic resistance of houses in villages and towns and enhance the disaster prevention and mitigation capabilities of rural areas,precautions for the design and construction of such houses have been proposed.
作者
王多军
黑晓丹
张勤生
曹建建
孙海峰
闵春伟
韩孝栋
孔德阳
WANG Duojun;HEI Xiaodan;ZHANG Qinsheng;CAO Jianjian;SUN Haifeng;MIN Chunwei;HAN Xiaodong;KONG Deyang(China Northwest Municipal Engineering Design&Research Institute Co.,Ltd.,Lanzhou 730030,China)
出处
《建筑结构》
北大核心
2025年第14期30-35,共6页
Building Structure
基金
甘肃省企业技术创新项目(GXHQY20240328-5)
中国市政工程西北设计研究院有限公司科技计划(XBSZKY2137、XBSZKY2320)。
关键词
积石山地震
震后房屋
震害调查
结构抗震
Jishishan earthquake
post earthquake houses
earthquake damage investigation
structural seismic resistance
作者简介
第一作者:王多军,学士,高级工程师,一级注册结构工程师,一级注册防护工程师(结构专业),主要从事建筑结构设计和房屋可靠性相关研究工作,Email:251286664@qq.com。
