聂建国, 王宇航. 基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用[J]. 工程力学, 2012, 29(1): 70-80. DOI: 10.6052/j.issn.1000-4750.2010.04.0278
引用本文: 聂建国, 王宇航. 基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用[J]. 工程力学, 2012, 29(1): 70-80. DOI: 10.6052/j.issn.1000-4750.2010.04.0278
NIE Jian-guo, WANG Yu-hang. DEVELOPMENT AND APPLICATION OF STEEL-CONCRETE COMPOSITE FIBER BEAM MODEL IN ABAQUS PLATFORM[J]. Engineering Mechanics, 2012, 29(1): 70-80. DOI: 10.6052/j.issn.1000-4750.2010.04.0278
Citation: NIE Jian-guo, WANG Yu-hang. DEVELOPMENT AND APPLICATION OF STEEL-CONCRETE COMPOSITE FIBER BEAM MODEL IN ABAQUS PLATFORM[J]. Engineering Mechanics, 2012, 29(1): 70-80. DOI: 10.6052/j.issn.1000-4750.2010.04.0278

基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用

DEVELOPMENT AND APPLICATION OF STEEL-CONCRETE COMPOSITE FIBER BEAM MODEL IN ABAQUS PLATFORM

  • 摘要: 在大量已有研究成果的基础上,基于大型通用有限元软件ABAQUS提供的用户子程序UMAT开发了一组适用于组合结构构件的单轴材料滞回本构模型,并编制了可用于组合截面纤维自动离散的前处理程序,由此集成了钢-混凝土组合结构纤维梁模型,可用于完全剪力连接的组合框架体系在竖向荷载及水平往复荷载作用下的整体弹塑性分析。与国内外大量试验的对比结果表明,该文开发的钢-混凝土组合结构纤维梁模型具有较高的精度和较为广泛的适用性。纤维梁模型虽然不能考虑钢梁与混凝土板之间的滑移效应,但与试验结果的对比表明是否考虑滑移效应对结构体系整体计算结果的影响不大,但建模工作量大大减少,计算效率显著提高,在分析组合框架体系在地震往复荷载作用下的受力性能时具有较大的优势。

     

    Abstract: A steel-concrete composite fiber beam model is developed in this paper, which can divide the composite sections into fibers and the user-defined uniaxial hysteretic material constitutive model can be incorporated in subprogram UMAT provided by ABAQUS. The steel-concrete composite fiber beam model can be used to perform global elasto-plastic analysis of composite frames with full connections subjected to the combined action of gravity and cyclic lateral loads. The model is verified through a number of experiments showing that the composite fiber beam model developed by authors possesses good accuracy and wide applicability compared with the traditional finite element model. Although the fiber beam model neglects the slip between steel beam and concrete slab, the accuracy of global predictions of steel-concrete composite frames is not affected. So the developed steel-concrete fiber beam model possesses modelling simplicity and calculation efficiency, and is suitable for the seismic analysis of steel-concrete composite frames.

     

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