复合墙板受力性能平面有限元分析

Analysis on Composite Wall Panels Using Finite Element Method

对三组复合墙板试件进行了平面有限元分析并与拟静力试验结果进行了比较,分析了骨架曲线、墙板裂缝分布及发展、钢筋应力分布等。分析表明,由斜拉筋连接的复合墙板在边框的约束下各部分能够很好地共同工作,其受力性能接近或优于普通实心剪力墙,为将复合墙板简化为普通实心剪力墙进行设计提供了试验和理论依据。边框面积的增大以及边框配筋的增加在一定程度上可以大大提高复合墙板的承载能力以及延性耗能性能,但要注意边框尺寸和配筋的匹配问题。

Specimens of composite wall panels in three groups are analyzed using finite element method and analyzing results are compared with the pseudo-static shear test results. Calculating results, such as skeleton curve, distribution and development rules, of cracks and stress distribution rules of steel bars etc. , are analyzed comparatively. The results show that two pieces of concrete plates connected by oblique tie bars and constrained by hidden frame can work in coordination very well, and load carrying behavior of the composite wall panel approaches or is better than that of the concrete solid shear wall panel, which can provide experimental and theoretical basis for simplifying the composite wall panel as the concrete solid shear wall panel to design. The load-carrying capacity and ductility energy consumption behavior of the composite wall panel can be largely increased by enlarging hidden frame area and reinforcement, but it is necessary to pay attention to the matching of the frame size and reinforcement.