框架-剪力墙混合结构层模型试验研究

Experimental Study of the Storey Modes of Frame-shear Wall Hybrid Structure

为了解混合结构的滞回特性及变形性能,利用低周反复荷载试验对6个不同类型的框架-剪力墙结构进行了研究,得到了各个试件的滞回曲线.通过改变剪力墙刚度,框架柱类型以及轴压比,比较了各种因素对结构受力性能的影响.分析了各个试件的加载过程,破坏形态以及滞回曲线,并提出了数值分析方法对试件进行了模拟,最后得出结论,框架-剪力墙结构的抗侧刚度和变形能力主要取决于剪力墙,框架能够改善结构的变形能力,采用钢框架更有助于结构的抗震.

To realize the hysteretic properties and deformation capability of hybrid structure,six different types of frame-shear walls were studied under low reversed cyclic loading.The hysteretic curves of the specimens were obtained.The various factors,which influenced the mechanical behavior by changing the shear wall stiffness,the types of frame column and the compression ratio,were compared.The loading process,failure mode and hysteretic curve of each specimen were analyzed.Finally,it was concluded that the lateral stiffness and deformability of the frame-shear wall structure was dependent on the shear wall,the frame could improve the deformation capacity,and steel frame was more helpful to the structure’s seismic performance.