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王傳甲¹   薛  炳^l   彪仿俊¹   王慶揚(yáng)¹   王秀喜²
（1 中國(guó)電子工程設(shè)計(jì)院深圳電子院設(shè)計(jì)有限公司  深圳 518031； 2 中國(guó)科學(xué)技術(shù)大學(xué) 合肥 230027）

[摘要] 為了找出結(jié)構(gòu)的薄弱位置，往往需要對(duì)各種復(fù)雜的建筑結(jié)構(gòu)進(jìn)行整體結(jié)構(gòu)層次上的彈塑性數(shù)值模擬。為提高建模以及數(shù)值計(jì)算效率，需要采用梁?jiǎn)卧?jì)算模型模擬鋼筋、鋼骨以及鋼管混凝土梁柱等復(fù)雜的構(gòu)件。在混凝土彈塑性損傷模型的基礎(chǔ)上，基于ABAQUS平臺(tái)開發(fā)了能夠描述以上復(fù)雜梁柱構(gòu)件力學(xué)行為的梁?jiǎn)卧獜?fù)合材料模型。模型的提出使整體結(jié)構(gòu)的彈塑性數(shù)值計(jì)算可以采用較為簡(jiǎn)單的梁?jiǎn)卧桶鍤卧M，提高了超高層建筑結(jié)構(gòu)整體彈塑性分析的效率。
[關(guān)鍵詞] ABAQUS; VUMAT;鋼筋混凝土結(jié)構(gòu)；塑性損傷

    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