重庆大剧院关键型钢混凝土悬挑构件SRC-1由于结构复杂,依据现行规范难以计算承载力和确定上部型钢锚固长度。采用ANSYS软件建立了构件的三维有限元模型。应力分析表明,设计荷载下构件构件具有足够的承载能力,上部型钢锚固良好,裂缝发展情况与试验吻合。随后建立的二维有限元模型则考虑了型钢(包括剪力键)与混凝土的粘结-滑移关系,计算得到了型钢与混凝土间粘结滑移的分布,结果表明构件不会发生粘结失效导致的拔出破坏。 Due to its complex structure, it is difficult to calculate the bearing capacity and determine the anchorage length of the upper section according to the existing codes. Using ANSYS software to establish the three-dimensional finite element model of the component. The stress analysis shows that the component member has sufficient bearing capacity under design load, the upper section steel is well anchored, and the crack development is in good agreement with the test. The subsequent two-dimensional finite element model considers the bond-slip relationship between the section steel (including the shear bond) and the concrete. The distribution of the bond slip between the section steel and the concrete is calculated and the result shows that the component will not bond Failure caused by the pull out damage.