加腋梁式框支短肢剪力墙转换结构试验研究

为了研究框支短肢剪力墙加腋梁式转换层结构的抗震性能,分别对一榀框支短肢剪力墙加腋梁式转换框架及一榀相同尺寸的不加腋梁式转换框架进行了竖向荷载和水平低周反复荷载共同作用下的拟静力试验。试验表明:1)加腋梁式转换结构可明显增强支座区段的抗剪承载力,有效减小转换梁尺寸,且更易实现"强柱弱梁,强剪弱弯"的抗震设计原则;2)加腋梁式转换结构,只要设计合理,可以获得较好的抗震性能。

Experimental Research on the Seismic Behavior of the Haunched Beam Transfer Structure with Frame-supported Short-leg Shearwall

A pseudo static test was carried out on two specimens in order to analyze the seismic behaviors of haunched beam-shaped transfer floors.The specimens included a framed short-leg shear wall haunched beam-shaped transfer plane framework and an unhaunched beam-shaped transfer frame with the same dimension.Both were subjected to vertical loads and horizontal cyclic loads,respectively.The test results show that:1)Application of a haunched beam-shaped transfer structure can improve the shear-bearing capacity of the abutment section and reduce the beam dimension effectively.In such an application,it is also easier to implement the aseismatic design principles of "strong column and weak beam,strong shearing and weak bend".2) If the design is reasonable,the haunched beam-shaped transfer structure has better aseismic behavior.