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基于不同构造形式的框支密肋复合板结构低周反复加载试验,依据Park退化参数滞回规则,采用非线性程序IDARC建立结构计算模型,并进行加载过程滞回曲线和骨架曲线计算值与试验值对比分析,以验证模型的正确性.同时,依据方差分析法,对框支斜交肋格复合墙板构件关键部位内力和整体结构最大转角值影响因素进行显著性分析.运用Abaqus程序建立合理的墙板模型,给出不同受力状态下随墙板高度变化的位移曲线,得到框支正交、斜交肋格墙板分别偏于弯剪型和剪切型变形的结论.不同位置斜交肋杆的轴向应变及杆间作用产生的内力比较结果表明,结构具有明显的桁架特征,杆间作用对肋杆端部弯矩和轴力影响较小,杆件以轴向变形为主.
Based on the low cycle repeated loading test of frame-supported multi-ribbed composite structures with different structures, a nonlinear finite element program IDARC was used to establish the structural calculation model according to the Park degeneration parameter hysteresis rule. The calculated value of hysteresis curve and the calculated value of skeleton curve Value comparison analysis to verify the correctness of the model.At the same time, according to the analysis of variance method, the significant factors of the internal force of the key parts and the maximum value of the overall structure of the diagonal rib slab composite slab with framed support were analyzed.Using Abaqus program to establish a reasonable , The displacement curves with the height of the wall under different stress states are given, and the conclusion that the box-supported orthogonal and diagonal ribbed wall panels are offset by the bending and shear deformation respectively is obtained. The results of axial internal force comparison of interlacing bar and inter-bar interaction show that the structure has obvious truss characteristics. The inter-bar interaction has little effect on the bending moment and axial force of the bar ends, and the main deformation of the bar is axial deformation .