王传甲¹   薛  炳^l   彪仿俊¹   王庆扬¹   王秀喜²
（1 中国电子工程设计院深圳电子院设计有限公司  深圳 518031； 2 中国科学技术大学 合肥 230027）

[摘要] 为了找出结构的薄弱位置，往往需要对各种复杂的建筑结构进行整体结构层次上的弹塑性数值模拟。为提高建模以及数值计算效率，需要采用梁单元计算模型模拟钢筋、钢骨以及钢管混凝土梁柱等复杂的构件。在混凝土弹塑性损伤模型的基础上，基于ABAQUS平台开发了能够描述以上复杂梁柱构件力学行为的梁单元复合材料模型。模型的提出使整体结构的弹塑性数值计算可以采用较为简单的梁单元和板壳单元模拟，提高了超高层建筑结构整体弹塑性分析的效率。
[关键词] ABAQUS; VUMAT;钢筋混凝土结构；塑性损伤

    Development of Material Model of the Steel Reinforced Concrete Beam in ABAQUS
    Wang Chuanjia¹, Xue Bing¹, Biao Fangjun¹, Wang Qingyang¹, Wang Xiuxj²
    1 Shenzhen Electronics Design Institute Co., Ltd., Shenzhen 518031,  China
    2 University of Science&Technology of China,  Hefei 230027, China

Abstract: To find the weak part of the structure, numerical simulation is usually carried out to analyze the seismic response of some complicated structures. Some complicated members, such as reinforced concrete beam and column with rebar and steel pipe should be simulated with beam elements iIl FEA software. But the concrete dmnage plasticity model is greatly limited when beam elements are used and it can't represent the complicated response of the beam and column with rebar and other steel strings. The material model used to represent the mechanical behavior of the concrete beam with rebar is developed iIl ABAQUS with user subroutine VUMAT. It improves the efficiency of the dynamic response analysis of the structures with whole model.
Keywords: ABAQUS; VUMAT; steel reinforced concrete structure; damage plasticity