内置GFRP管多腔钢混凝土组合剪力墙极限承载力分析

Analysis of ultimate load⁃bearing capacity of multicellular steel tube shear wall with FRP⁃confined concrete cores embedded in CFST columns as boundary elements

为研究内置GFRP管多腔钢混凝土组合剪力墙的极限承载力,结合各组成材料的力学特性,考虑钢管与GFRP管对混凝土的约束作用,选取合适的本构模型,建立内置GFRP管多腔钢混凝土组合剪力墙的极限承载力计算公式。通过与已有试验和有限元分析结果进行对比,表明该公式能够较好地预测内置GFRP管多腔钢混凝土组合剪力墙的极限承载力。

To study the ultimate load⁃bearing capacity of the multicellular steel tube shear wall with FRP⁃confined concrete cores embedded in CFST columns as boundary elements,the ultimate load⁃bearing capacity formula is established by combining the mechanical characteristics of each material,considering the confining effect of steel tubes and GFRP tubes on concrete,and selecting suitable constitutive models.By comparing with the experimental results and simulated results,it shows that the formula can predict the ultimate load⁃bearing capacity of this composite shear wall better.