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为了研究地震作用下结构的损伤演化过程,对一3层钢-混凝土试验模型结构进行弹塑性分析.对经典Park-Ang双参数构件损伤模型进行了改进,并利用试验测试数据对损伤模型参数进行拟合.基于振动台试验测试数据对分析结果进行位移修正,并将修正后结果应用于改进模型中对结构进行损伤评估.结果表明,将修正后的结果应用到损伤模型中能够较好地反映结构的损伤程度,并能定量、连续地描述结构的损伤过程,可以对在地震作用下结构的构件和整个结构的抗震性能做出评估.
In order to study the damage evolution process of the structure under earthquake, a three-layer steel-concrete test model structure is elasto-plastic analyzed. The classical Park-Ang two-parameter component damage model is improved, and the damage test parameters are used to make the damage model parameters The displacement of the analysis result is corrected based on the shaking table test data and the corrected result is applied to the damage assessment of the structure in the improved model.The results show that the modified result can be well reflected in the damage model The degree of structural damage, as well as the quantitative and continuous description of the structural damage process, can evaluate the seismic performance of the structural members and the entire structure under earthquake action.