基于频率退化的砌体房屋结构抗震性能评价  

SEISMIC PERFORMANCE ASSESSMENT OF BRICK MASONRY STRUCTURES WITH PRECAST SLABS BASED ON DETERIORATION OF FREQUENCY

作　　者：夏樟华[1] 李嘉维[2] 夏坚[1] 林锦滔 

机构地区：[1]福州大学土木工程学院,福州350108 [2]福州大学阳光学院,福州350015 [3]福建省九鼎检测有限公司,福州350002

出　　处：《工业建筑》2015年第4期92-97,共6页Industrial Construction

基　　金：教育部博士点基金项目(20110092110011);福建省科技攻关计划项目(2006Y03010663)

摘　　要：为研究双向地震作用下预制板砖砌体房屋结构的抗震性能评价方法,进行1∶2比例模型的双向拟动力试验。通过介绍试验中结构刚度和频率的变化,提出基于频率变化的抗震性能评价方法,评价结果与基于刚度退化的方法接近,但计算过程更加简捷。基于频率的评价结果与实际破坏状态也较吻合,说明该方法可以应用于预制板砖砌体房屋结构的抗震性能评价。In order to study the seismic performance assessment method of brick masonry structures with precast slabs, the bi-directional pseudo-dynamic test of 1∶2 scaled building model was carried out.The change of rigidity and frequency of the structure was introduced in the test, and a seismic performance assessment method based on frequency was presented. The evaluation results based on frequency were very close to those based on rigidity, and frequency-based method had a simpler calculation process, and the results were also closed to real damage condition.Therefore, the frequency-based method could be applied in seismic performance evaluation of brick masonry structures with precast slabs.

关 键 词：预制板砖砌体房屋结构 双向拟动力试验 抗震性能评价指标 刚度 频率 

分 类 号：TU364[建筑科学—结构工程] TU352.11