摘要
墨江M5.9地震极震区烈度达到Ⅷ度.地震也是对该地区近年来农村危房改造成效的一次集中检验.为验证农危改工作实施成效,总结农房加固改造震害经验,首先,根据该区域强震动观测记录,从地面峰值加速度衰减规律和地震波频谱特性方面对地震动特性进行分析;然后,在震害调查的基础上,结合灾区建筑结构特点对Ⅶ度区、Ⅷ度区农房震害特征进行阐述,对农危改房屋在地震中的表现进行对比分析并总结震害经验;最后,结合本次震害调查从加强地震观测、加大力度推进农村危房改造、推广新技术新材料运用和重视震害调查等方面,对提高农房抗震防灾能力提出建议.
The seismic intensity of the meizoseismal area reachedⅧdegrees in Mojiang M5.9 earthquake in Yunnan province,which was an intensive inspection to the results of renovation of the dilapidated rural residences.In order to verify the effectiveness of the renovation of dilapidated rural houses and summarize the seismic damage experience of the fortified farmhouses,the following work is done in this paper.Firstly,the ground motion characteristics are analyzed from the attenuation law of ground peak acceleration and the spectrum characteristics of seismic waves according to the observation records of strong vibration in this region.And then,on the basis of seismic damage investigation,combined with the characteristics of the architecture and structure,the characteristics of the seismic damage of rural houses in the areas with earthquake intensities ofⅦandⅧdegrees were elaborated,the performance of the reinforced dilapidated rural houses in the earthquake was compared and analyzed,and the experience of seismic damage was summarized.Finally,combined with the investigations of seismic disasters,some suggestions are put forward to improve the earthquake resistance of rural houses from the aspects of strengthening earthquake observation,increasing efforts to promote the renovation of rural dilapidated houses,promoting the use of new technologies and new materials,and attaching importance to seismic damage surveys.
作者
戴必辉
陶忠
叶燎原
高永林
皇甫双娥
DAI Bihui;TAO Zhong;YE Liaoyuan;GAO Yonglin;HUANGFU Shuange(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;Faculty of Civil Engineering,Southwest Forestry University,Kunming 650224,China;Earthquake Engineering Researching Center of Yunnan,Kunming 650500,China;Yunnan Normal University,Kunming 650500,China)
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2021年第11期121-131,共11页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(51168025,51868032)
国家科技支撑计划资助项目(2013BAK13B01)
云南省教育厅科学研究基金资助项目(2019J0194)
关键词
墨江M5.9地震
震害分析
农房
抗震加固
Mojiang M5.9 earthquake
seismic hazard analysis
rural houses
seismic reinforcement requirements
