冷弯薄壁型钢复合墙体的抗震性能研究

Research on Seismic Performance of the Cold-formed Thin-walled Steel Composite Wall

本文使用大型通用有限元软件ABAQUS研究冷弯薄壁型钢复合墙体的抗震性能,分析高宽比、墙体的水平拉筋等参数对冷弯薄壁型钢复合墙体抗震性能的影响.研究表明:随着冷弯薄壁型钢墙体的高宽比增加,墙体的抗剪承载能力逐渐降低,但墙体的变形能力逐渐增强.墙体的水平拉筋可以增强墙体的整体性能,当拉筋间距较小时,可有效提高墙体的延性,随着水平拉结筋间距增大,墙体的抗剪承载力逐渐降低,屈服荷载和极限荷载也随之降低.

In this paper, using a large general finite element software ABAQUS to research the seismic behavior of the cold - formed thin - walled steel composite wall, analyzed the ratio of height to width and horizontal brace of wall for the influence of the cold - formed thin - walled steel composite wall seismic performance. The research show that as the ratio of height to width increases, the wall shear carrying capacity reduce gradually, but gradually enhance its capability of deformation of the wall. The wall of the horizontal brace can enhance the overall performance of the wall. When the spacing of the horizontal brace is small, can effectively improve the ductility of the wall. As the spacing of the horizontal brace is increased, the shear bearing capacity of the wall gradually is reduced, the yield load and ultimate load is decreased.