组合材料加固砖砌体的有限元模拟方法

基于ABAQUS有限元软件，提出了组合材料加固砌体数值建模方法。该方法是在未加固砌体整体式模型的基础上，结合分离式思想建立组合材料加固砌体模型。通过对8片采用粘钢-聚合物砂浆组合材料加固的砖砌体墙体（其中，4片采用粘贴正交钢片，4片采用粘贴斜撑钢片）的拟静力试验结果进行了数值模拟对比分析，结果显示:模拟所得墙体滞回、骨架及刚度退化曲线与试验曲线基本吻合；仿真破坏形态与试验现象一致；计算所得荷载、位移、延性和耗能等全部指标中有81%的误差在20%以内。

FINITE ELEMENT SIMULATION METHOD FOR BRICK MASONRY REINFORCED WITH COMPOSITE MATERIALS

A numerical modeling method for masonry reinforced with composite materials is proposed based on the ABAQUS finite element software.This method combines the idea of the discrete model with the smeared model for unreinforced masonry walls to establish the numerical model for masonry walls strengthened with composite materials.The quasi-static test results of eight brick walls reinforced by steel plates and polymer mortar are employed to verify the feasibility of the proposed numerical model.The comparison between the numerical and test results shows that the failure patterns,hysteresis curves,skeleton curves and stiffness degradation curves are close to the corresponding experimental results.The simulation errors of 81%seismic parameters including the key loads,displacements,ductility factor and energy dissipation index are less than 20%.