王荣辉, 徐林荣, 曾庆元. 板桁组合结构空间计算的板桁梁段有限元法[J]. 工程力学, 1999, 16(4): 65-72,7.
引用本文: 王荣辉, 徐林荣, 曾庆元. 板桁组合结构空间计算的板桁梁段有限元法[J]. 工程力学, 1999, 16(4): 65-72,7.
WANG Rong-hui, XU Lin-rong, ZENG Qing-yuan. PLATE-TRUSS DECK SECTION FINITE ELEMENT METHOD OF SPATIAL ANALYSIS FOR PLATE-TRUSS COMPOSITE STRUCTURE[J]. Engineering Mechanics, 1999, 16(4): 65-72,7.
Citation: WANG Rong-hui, XU Lin-rong, ZENG Qing-yuan. PLATE-TRUSS DECK SECTION FINITE ELEMENT METHOD OF SPATIAL ANALYSIS FOR PLATE-TRUSS COMPOSITE STRUCTURE[J]. Engineering Mechanics, 1999, 16(4): 65-72,7.

板桁组合结构空间计算的板桁梁段有限元法

PLATE-TRUSS DECK SECTION FINITE ELEMENT METHOD OF SPATIAL ANALYSIS FOR PLATE-TRUSS COMPOSITE STRUCTURE

  • 摘要: 本文考虑了板桁组合结构桥面板的局部屈曲,剪力滞后和板桁梁段截面畸变、翘曲、扭转与剪切变形的影响,利用横向有限条带法构造了桥面板板段的局部空间变位模式,提出了板桁梁段有限元法。该方法自由度少,计算精度高,能用于大型板桥组合结构的空间计算。

     

    Abstract: The present research focuses on the spatial analysis of plate-truss composite stuructures. The influences of local buclding of deck, shear lag, section distortion, warping deformation, twist and shear deformation are taken into account in the analysis. A plate-truss deck section finite element method is proposed in which the spatial local displacements are formulated using transverse finite strips. The method has high accuracy and less degrees of freedom, especially for spatial analysis of large plate-miss composite structures.

     

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