加劲板连接双层钢板混凝土剪力墙抗剪承载能力分析

The analysis on the shear carrying capacity of the bi-steel-plate concrete shear wall connected by stiffened plates

加劲板连接双层钢板混凝土剪力墙是一种新型结构形式的组合剪力墙。为了研究加劲板连接双层钢板混凝土剪力墙的抗剪性能,采用ABAQUS有限元程序对其进行有限元模拟分析。分析了加劲板间距、跨高比、两侧钢板厚度和内填混凝土板厚度等参数对这种剪力墙抗剪性能的影响。分析结果表明:加劲板连接双层钢板混凝土剪力墙承载力高;跨度和钢板厚度是影响加劲板连接双层钢板混凝土剪力墙的主要因素,随着跨高比、钢板厚度的增大,承载力明显提高;最后基于承载力叠加原理提出加劲板连接双层钢板混凝土剪力墙承载力计算公式。

The bi-steel-plate concrete shear wall connected by stiffened plates is a new type of the composite shear wall. In order to investigate the shear performance of the wall, the ABAQUS finite element program is adopted for the simulation analysis. The analysis focuses on the impact on shear performance of the stiffened plate space, span to depth ratio, steel plate thickness and built-in concrete slab thickness. The results show that the span and steel plate thickness form the two major factors that influence shear wall performance; and the shear carrying capacity grows obviously with the span-to-depth ratio and steel plate thickness increasing. Finally, the bearing capacity formula is put-forward based on the superstition principle.