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中文摘要：
Faria-Oliver损伤本构模型是一种模型参数少、标定方便、计算效率较高的混凝土弹塑性损伤本构模型,但此模型对循环荷载作用下混凝土受拉行为的描述略有不足;针对此点提出了修正模型,并基于大型有限元软件ABAQUS编制了修正模型的用户材料子程序VUMAT,对钢筋混凝土高桥墩进行了地震损伤分析。分析结果表明：基于提出的修正Faria-Oliver损伤模型对高桥墩进行地震损伤分析,能有效识别高桥墩在地震作用下的典型损伤破坏过程。并进而发现高桥墩在地震作用下易发生多处损伤,且损伤位置以及损伤演化过程对地震动频谱特性具有敏感性的特点。
英文摘要：
The Faria-Oliver damage model is a simple and efficient elasto-plastic damage constitutive model for concrete.However,there is a drawback about the description of the tensile behavior of concrete under cyclic loading.A modification is introduced,and a material subroutine is implemented into the finite element software ABAQUS.Seismic damage analysis of a RC high bridge pier is performed using the modified Faria-Oliver damage model.The results show that seismic damage analysis can effectively capture the typical damage evolution process of the high pier.Moreover,it is observed that for the high bridge pier,multiple damages tend to occur and the damage process is sensitive to the frequency of the earthquake.
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