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综合考虑密肋复合墙体的外框、肋格和填充砌块三部分构成特性,基于通用有限元分析软件,运用分层壳理论及纤维模型理论并结合自定义材料子程序模型,建立了不仅能反映密肋复合板结构整体受力特性还能反映构件开裂、挤压等局部受力特性的密肋复合板结构非线性数值分析模型。通过对3个构件试验和1个结构试验进行数值模拟计算,模拟结果与试验数据吻合较好,验证了本文数值分析模型可用于密肋复合板结构的滞回性能模拟,并具有较高的计算精度。
Based on the common finite element analysis software, the layered shell theory and the fiber model theory, combined with the custom material subroutine model, the characteristics of the frame, the rib and the filling block are comprehensively considered. The nonlinear numerical analysis model of multi-ribbed composite slab structure which can reflect the overall stress characteristics of multi-walled composite slab structure and reflect the local stress characteristics such as cracking and extrusion of components is also presented. Through the numerical simulation of three component tests and one structural test, the simulation results are in good agreement with the experimental data, which verifies that the numerical analysis model in this paper can be used to simulate the hysteretic behavior of multi-walled composite slab structures with high computational Accuracy.