摘要
对漾濞6.4级地震灾区开展土木结构房屋加固情况与破坏形式调查。从云南相近震级地震破坏情况的对比、加固与未加固房屋的对比、强震动记录、与烈度衰减关系对比等方面进一步分析,认为抗震加固能减轻土木结构建筑的破坏。甚至可降低其宏观烈度1~2度,对抗震加固的防震减灾效果进行评估;就抗震加固工作及烈度评估工作提出建议。
Based on the field investigation of the damage of civil structure buildings caused by Yangbi M_(S)6.4 earthquake in Yunnan Province,the reinforcement performance and damage characteristics of civil structure houses in the earthquake-stricken areas were analyzed.The analysis results showed that the damage of civil structure houses can be reduced after seismic reinforcement.Through the comparative analysis of damage characteristics of similar earthquakes,analysis of reinforced and unreinforced structures,and the strong motion records,it can be concluded that the seismic reinforcement of civil structure buildings can reduce the macro intensity by 1-2 degrees.Furthermore,the effects of earthquake prevention and disaster reduction of seismic strengthening on civil structures were evaluated,and some suggestions on seismic strengthening and intensity evaluation were put forward.
作者
贺素歌
冉华
周青云
于江
罗伟东
白仙富
HE Suge;RAN Hua;ZHOU Qingyun;YU Jiang;LUO Weidong;BAI Xianfu(Yunnan Earthquake Agency,Kunming 650224, Yunnan, China;Kunming Institute of Earthquake Prediction,CEA,Kunming 650224, Yunnan, China)
出处
《地震工程学报》
CSCD
北大核心
2021年第4期799-806,817,共9页
China Earthquake Engineering Journal
基金
云南省地震局科技专项(2021ZX01,2018ZX02)
中国地震局星火计划(XH18042Y)。
关键词
漾濞6.4级地震
抗震加固
土木结构
烈度评估
地震灾害特征
Yangbi M_(S)6.4 earthquake
seismic reinforcement
civil structure
intensity evaluation
earthquake damage characteristics