不同连接方式下新型砌体填充墙框架结构的抗震性能  

Seismic Performance of New Masonry Infilled RC Frame with Different Types of Connections

作　　者：吴方伯[1] 李大禹[1] 欧阳靖[1] 蒋文[1] 周绪红[1,2] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]重庆大学土木工程学院,重庆400044

出　　处：《建筑科学与工程学报》2016年第3期28-35,共8页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金项目(51278179)

摘　　要：试验设计了4榀足尺框架结构,其中1榀为空框架,3榀为带新型横孔空心砌块砌体填充墙,带填充墙框架试件分为刚性连接试件和柔性连接试件2种。对各试件在恒定竖向力和水平低周反复荷载作用下的抗震性能进行试验,研究了框架在不同连接形式下的破坏特征、滞回特性、骨架曲线、位移延性、刚度退化、强度退化、耗能能力。结果表明:柔性连接试件抗震性能介于空框架和刚性连接试件之间,框架梁和填充墙采用拉结筋连接试件的抗震性能相对于未设置拉结筋试件有所改善,但提高幅度有限。Four full-scale reinforced concrete frames,including one bare frame without infilling walls and three infilled frames with the new cross hole hollow block masonry,were tested to study the seismic performance under constant vertical force and horizontal low reversed cyclic loading.The damage behavior,hysteretic characteristics,skeleton curve,displacement ductility,stiffness degradation,strength degradation and energy-dissipating capacity of frames with different types of connections were studied.The results show that the seismic performance of flexible connection specimen is between empty framework and rigid connection specimens,and the seismic performance of the specimen whose frame beam and the infilled wall are connected by tie steel bars has been improved relative to unset specimen,but the increase is limited.

关 键 词：钢筋混凝土框架 新型混凝土横孔空心砌块 拟静力试验 柔性连接 刚性连接 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程]