双肢短肢剪力墙结构弹塑性拟静力分析

Elastic-plastic Analysic of Short-leg Shear Wall Structure with Simulative Static Test

利用有限元分析软件ANSYS,对短肢剪力墙结构,从弹性到混凝土开裂直至破坏的全过程进行了模拟试验分析。试验分析了影响短肢剪力墙受力的几种因素:墙肢截面高厚比、混凝土强度等级、连梁跨高比、轴压比对短肢剪力墙承载能力和变形能力的影响。试验结果表明:截面高厚比在6.5左右时,承载能力和变形能力较高。连梁的屈服先于墙肢的屈服,属于强肢弱梁型结构。

Simulative analysis on short-leg shear wall was conducted using the general FEA program AN SYS, and the whole process from concrete elastic to plastic until crush was revealed. Some factors which may influent its load carrying and deformation capacity such as sectional depth-thickness ratio, concrete strength-grade, span-depth ratio of couple beam, ratio of axial compressive force to ultimate capacity were discussed. The result revealed that when the sectional depth thickness ratio was 6.5, the load carrying and deformation capacity were relatively high. Couple beam yielded before the leg.