李  正¹，  朱炳寅¹，  李  宁²
    （1 中国建筑设计研究院，北京 100044；2 天津大学建筑工程学院，天津 300072）

[摘要] 基于大型通用有限元软件ABAQUS，将混凝土的修正Faria-Oliver损伤模型与钢筋的由Sakai与Kawashima修正的Menegotto-Pinto模型，利用用户材料子程序接口VUMAT嵌入到ABAQUS材料库中，结合纤维梁柱单元的等效模拟策略，模拟分析了钢筋混凝土多层框架结构的地震损伤发展全过程。研究表明：该模拟方法能有效识别出钢筋混凝土框架结构的地震损伤、破坏全过程，便于设计人员直观地了解框架结构的抗震薄弱部位，从而采取相应的损伤控制措施，同时也为高层建筑结构的地震损伤分析与控制奠定了基础。
[关键词] 钢筋混凝土；框架结构；纤维单元；损伤本构模型；地震反应
中图分类号：TU313.3  文献标识码：A  文章编号：1002 -848X( 2011) Sl -0249 -04

Seismic damage analysis of reinforced concrete frame structures based on ABAQUS
    Li Zheng¹, Zhu Bingyin¹, Li Ning²
    (1 China Arclutecture Design & Research Group, Beijing 100044, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)

Abstract: Based on general-purpose FEA software ABAQUS, the uniaxial modified Faria-Oliver damage model for concrete and modified Menegotto-Pinto model by Sakai and Kawashima for rebar are embedded into the material library of ABAQUS through the user material subroutine VUMAT. Then, the seismic damage analysis of a reinforced concrete( RC) multi-storey frame structure is performed using the equivalent fiber model of beam-column element. The results show that the simulation method established in the present paper can capture the damage and failure process of the RC frame structures effectively.  It is convenient for the designers to understand the weak part of the frame structures and take the damage control measures, furthermore, lays the foundation for the seismic damage analysis and control of the tall Inulding structures.
Keywords: reinforced concrete; frame structure; fiber element; damage constitutive model; seismic response