不同连接方式预制复合墙板填充墙对框架抗震性能的影响

为研究不同连接方式的预制复合墙板填充墙对钢筋混凝土(RC)框架抗震性能的影响，进行了1榀RC纯框架、1榀普通砌块填充墙RC框架及3榀连接方式不同的复合墙板填充墙RC框架的低周反复加载试验，复合墙板填充墙与框架之间的连接方式分为刚性连接、半柔性连接和柔性连接3种。通过试验分析不同连接方式的墙板填充墙对框架承载力、刚度、延性、耗能能力等的影响。试验结果表明：刚性连接复合墙板填充墙能使RC框架的抗侧刚度、水平承载力大幅提高，同时延性变差；柔性连接和半柔性连接的复合墙板填充墙RC框架的抗侧刚度、水平承载力高于砌块填充墙RC框架的，延性好于砌块填充墙RC框架；加载过程中，半柔性连接的复合墙板填充墙RC框架墙板和框架依次破坏，表现出良好的耗能能力。建议工程应用中复合墙板填充墙与框架之间采用柔性连接或半柔性连接构造方式。

Influence of prefabricated composite infilled wallboard with different connection modes on seismic behavior of frame structure

Low cyclic loading tests were carried out on one bare reinforced RC frame, one masonry-infilled RC frame and three composite filled wallboard RC frames with different connection modes to investigate the effects of prefabricated composite infilled wallboard with different connection modes on the seismic behavior of RC frame structures. It can be divided into rigid connection, semi flexible connection and flexible connection according to different connection modes. Through the test, the effects of infilled wallboard on the bearing capacity, stiffness, ductility and energy dissipation capacity of the frame were analyzed. The following conclusions can be drawn that the composite infilled wallboard with rigid connection will increase the lateral stiffness and horizontal bearing capacity of the RC frame greatly, while the ductility will become poor. The lateral stiffness and horizontal bearing capacity of composite infilled wallboard RC frame with flexible connection and semi flexible connection are higher than that of the RC frame with block infilled wall, and the ductility is better than that of RC frame with block infilled wall. During the loading process of the RC frame with composite wallboard infilled with semi flexible connection, the wallboard and frame are destroyed successively, showing good energy dissipation capacity. It is suggested that flexible connection or semi flexible connection should be adopted between the infilled wall and the frame in engineering application.