轴压比对装配式双面叠合双肢剪力墙抗震性能的影响研究

Study on the Effect of Axial Load Ratio on Seismic Behavior of Assembled Double Faced Superposed Double-limb Shear Wall

双面叠合剪力墙是由两个外部预制墙体层和一个夹心内部现浇混凝土层叠合而成的新型装配式构件。本文将重点研究开设洞口后所形成的双面叠合双肢剪力墙,在不同轴压比作用下,连梁对墙板在地震荷载作用下的破坏形态和抗震性能的影响。通过ABAQUS有限元软件按现行规范要求建立合理的受力模型,试验分析表明:随着轴压比增大,装配式双面叠合剪力墙承载力和屈服强度都得到提高,但当轴压比超过0.5时开始出现下降趋势,抗震性能良好,适合用于具有抗震设防地区。

The double faced superposed shear wall is a new type of fabricated component that is composed of two external prefabricated wall layers and a sandwich internal cast-in-place concrete.In this paper,we will focus on the effect of the double faced superposed double-limb shear wall formed by the opening of the hole on the failure mode and seismic performance of the beam to the wall under the action of different axial compression ratios.Through the ABAQUS finite element software,a reasonable force model is established according to the current specifications.The experimental analysis shows that as the axial load ratio increases,the bearing capacity and yield strength of the assembled double faced superposed shear wall are improved,but when the axial load ratio exceeds0.5,the downward trend begins,and the seismic performance is good.It is suitable for use in areas with seismic fortification.