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A refined model for beam elements and beam-column joints

机译:梁单元和梁柱节点的改进模型

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To improve the accuracy of finite element modeling of concrete frame structures, a new beam-solid transition element with refined characteristics is introduced. The refinement capability in this approach provides an accurate strain field approximation in the regions of high shear forces of beam and columns. Finite element formulation has been extended for material nonlinearity and large deformations to account for ultimate loads and secondary effects. In an example the accuracy and efficiency of this technique in analysis of beam-column joints is shown and the results compared with an alternative numerical approach.
机译:为了提高混凝土框架结构有限元建模的准确性,引入了一种具有改进特性的新型梁-固过渡元件。这种方法的改进能力可以在梁和柱的高剪切力区域中提供精确的应变场近似值。有限元公式已扩展到材料非线性和大变形,以解决最终载荷和次要影响。在一个示例中,显示了此技术在分析梁柱节点时的准确性和效率,并将结果与​​替代的数值方法进行了比较。

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