开洞型钢混凝土剪力墙静力性能分析与承载力计算方法

The reinforced concrete (RC) shear walls possess the disadvantages of large self-weight, poor ductility, early cracking and shear failure mode. To improve the mechanical performance, to reduce the self-weight and to decrease the construction cost of RC shear walls, the steel reinforced concrete (SRC) shear walls with openings were proposed. In order to investigate the mechanical behavior of SRC shear walls with openings, the nonlinear finite element (FE) models of SRC shear walls were developed in ABAQUS and were validated by existing test results. Then, the FE models for SRC shear wall with openings were developed to study the influence of the shear wall thickness, opening ratio, reinforcement ratio in the wall piers, concrete compressive strength and axial compressive ratio on the static performance. The calculation methods for axially compressive stability capacity and shear capacity of SRC shear wall with openings were proposed and the results of formulas were verified by comparing with the numerical simulation results. The results show that the opening of the shear wall could cause the reduction of the axial compression stability bearing capacity and the shear bearing capacity. With the increase of concrete strength and wall thickness, the axial compression stability bearing capacity also increases notably.