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在冷弯型钢骨架墙体抗剪模型得到试验充分验证的基础上,对影响墙体抗剪性能的8个因素进行了有限元参数分析。分析结果表明:墙体骨架壁厚、骨架屈服强度、立柱截面大小、竖向荷载大小的变化及一定范围内墙体高度的变化对墙体抗剪承载力影响不大;增加墙面板厚度可以有效地提高墙体抗剪承载力;在墙体尺寸等不变的情况下,立柱间距的减小有助于墙体抗剪承载力的提高;墙面板采用带肋钢板代替平钢板,在墙体抗剪承载力、墙板平面外鼓出量上均有很大的改进,并且随着肋高的增加,其抗剪承载力增加,墙板平面外鼓出量减小。
On the basis of fully verifying the shear-resistant model of the cold-formed steel frame wall, the finite element analysis of the eight factors affecting the shear-resistant performance of the wall was carried out. The results show that the change of the wall thickness, the yield strength, the column section size, the vertical load size and the change of the wall height within a certain range have little effect on the shear strength of the wall. Increasing the thickness of the wall panel can be effective To increase the shear strength of the wall; in the case of the same wall size, reduced column spacing contribute to improve the shear capacity of the wall; wall panels instead of using flat steel plate ribbed plate, the wall Shear capacity, wallboard outboard bulky have greatly improved, and with the increase of the rib height, the shear capacity increases, the amount of wall outboard bulge reduction.