摘要
结合某中学教学楼抗震加固,对原结构、设普通钢支撑以及屈曲约束支撑的3种结构进行弹塑性时程分析比较。结果表明,采用屈曲约束支撑加固比普通钢支撑加固能有效降低顶点位移、顶点加速度和基底剪力等地震响应,在罕遇地震作用下有良好的耗能能力,比普通钢支撑体现出更好的性能,加固效果更明显。
Based on the seismic strengthening of the middle school teaching building, comparative study of the building information including original structure, ordinary steel support and buckling-restrained brace strengthening structure are done by nonlinear time history analysis. Results show that buckling-restrained brace can reduce these seismic responses including vertex displacement, peak acceleration and base shear when subjected to frequent earthquakes, and when rare earthquakes happened, buckling-restrained brace can provide additional energy dissipation capacity for the main structure, show better performance than ordinary steel support strengthening. So that evident effect of strengthening is good.
出处
《施工技术》
CAS
北大核心
2013年第22期62-65,共4页
Construction Technology
关键词
加固
屈曲约束支撑
抗震
时程分析
strengthening
buckling-restrained brace
seismic
time history analysis
