以振动台试验为基础,利用ABAQUS软件对试验原型进行了抗震模拟,根据模拟出的砌体模型损伤云图及相应受拉损伤参数(DAMAGET)值,判断砌体结构的裂缝位置和破坏程度。通过对比弹塑性时程分析数据与试验结果,验证了有限元模型各参数设置的合理性。建立三个有限元模型,比较模型间损伤参数值和结构的层间位移角,研究构造柱及材料强度对砌体结构抗震性能的影响。结果表明:应力集中的洞口附近首先出现受拉损伤,而构造柱的设置可延缓其发展,此外,材料强度对结构刚度产生的影响较大。
On the basis of the shaking table test,ABAQUS software was used to simulate the seismic performance of the test prototype. According to the simulated damage cloud image of the masonry model and corresponding tensile damage parameters( DAMAGET) value,the location and damage degree of masonry structure were determined. By comparing the elastic-plastic time-history analysis data with the test results,the rationality of the parameters for finite element model was verified. Three finite element models were established to compare the damage parameter values between the models and the interlayer displacement angles of the structures. And the influences of the structural column and the material strength on the seismic performance of masonry structure were also studied. The results show that the tensile damage occurs first near the holes with stress concentration,and the structural column can delay its development. In addition,the impact of material strength on the structural stiffness is large.