钢板剪力墙振动台试验的等效模型

为解决钢框架-钢板剪力墙结构振动台试验缩尺模型中的剪力墙钢板厚度过薄的问题,依据结构初始抗侧刚度或承载能力等效的原则,提出中心支撑和Ⅰ形钢板剪力墙两种等效模型,采用数值分析的方法,通过有限元软件ABAQUS建立精细化模型,对原型结构的钢板剪力墙和等效模型的刚度与承载力等抗震性能进行了对比分析.研究结果表明:两种等效替代...

Equivalent model of steel plate shear walls in shaking table tests

In the shaking table test of steel frames-steel shear wall system, a problem is that the thickness of the steel plate shear wall(SPSW) in the scale model is too small. In order to solve this problem, this paper proposes two equivalent models:concentrically braced frames and I shape of steel plate shear walls. Both of the two models are based on principles of equivalent initial lateral stiffness or bearing capacity of the structure. The finite element analysis program ABAQUS was used to establish the refined model, using the method of numerical analysis. And the stiffness, bearing capacity and other seismic performance of the prototype SPSW and equivalent models were compared and analyzed. The results show the two equivalent substitution models both have good energy consumption capacity and can solve the problem of small thickness. In addition, the concentrically braced frames model can only make sure either stiffness or bearing capacity equivalent, but I shape of steel plate shear walls model can ensure both stiffness and bearing capacity equivalent, which provides some suggestions for the equivalent models of SPSW in shaking table tests.