钢板剪力墙的弹-塑性抗剪承载力分析

Elastoplastic shear bearing capacity analysis of steel plate shear walls

利用板条模型合理地模拟了钢板由弹性屈曲到屈曲后板条端部初始屈服,再到钢板大面积充分形成拉力带屈服的全过程.先分别考虑钢板和框架的单独作用,然后再考虑钢板和框架的组合,得到了钢板剪力墙的剪力-位移关系曲线,并给出了钢板和框架在各个不同受力阶段的剪力和位移计算公式,最后通过算例验证了公式的有效性.

A full shear resisting process of a steel plate, which developed from elastic buckling to post-buckling initial yielding at the end of the strip, and then to the yielding of tension field formed in the whole plate, was simulated reasonably by use of the strip model. The action of the plate and steel frame was considered separately at first, and then their combined action was taken into account. Thus, a shear force-displacement curve for steel plate shear walls is obtained, and the calculation formulas for shear force and displacement of steel plate and frame at different stress stages are also given. The effectiveness of the formulas is verified by examples of calculation.