新型钢板组合剪力墙力学性能研究

MECHANICAL PROPERTIES OF NEW STEEL PLATE COMPOSITE SHEAR WALLS

为满足实际工程对钢板组合剪力墙多样化的需求,提出了新型钢板组合剪力墙,用Abaqus软件对新型钢板组合剪力墙创建有限元模型并进行分析计算以研究新型钢板剪力墙的受力性能。分析结果表明,钢板组合剪力墙在竖向加载、水平拟静力推覆及水平循环加载下均表现出较好的承载能力,受力及变形趋势与现有常用钢板剪力墙相一致,符合理论预期;增加墙体厚度可明显提高组合墙的竖向承载力,但考虑到建筑功能及构造要求,墙体厚度不宜过大,一般墙厚取为150~200mm较为合适;通过有限元计算承载力与规范公式计算承载力比较,验证了轴压承载力、压弯承载力作用下规范公式的适用性,通过规范公式计算的承载力可以为新型钢板剪力墙应用于实际工程提供参考。

A new type of steel plate composite shear wall is proposed to meet the multiple requirements in practical engineering, the finite element model of which is established by Abaqus software to study the mechanical performance. The results show that the wall has good bearing capacity under vertical loading, horizontal quasi-static pushover loading, and horizontal cyclic loading, and the stress and deformation trend are consistent with that of traditional steel plate shear walls, which is conformance to expectation. Increasing the thickness of the wall can significantly improve the vertical bearing capacity, and 150 ~ 200 mm is appropriate considering the building function and structural requirements. By comparing the bearing capacity calculated by the numerical method with that calculated by code formula method, the applicability of code formula under axial compression bearing capacity and bending bearing capacity are verified, providing the reference for the use of new steel plate shear wall in practical engineering.