王荣辉, 周建春. 斜交多肋T梁桥空间计算的有限单元法[J]. 工程力学, 2003, 20(2): 163-167.
引用本文: 王荣辉, 周建春. 斜交多肋T梁桥空间计算的有限单元法[J]. 工程力学, 2003, 20(2): 163-167.
WANG Rong-hui, ZHOU Jian-chun. SPATIAL CALCULATION FEM FOR SKEW T-BEAM BRIDGE WITH MULTI-RIBBED SLABS[J]. Engineering Mechanics, 2003, 20(2): 163-167.
Citation: WANG Rong-hui, ZHOU Jian-chun. SPATIAL CALCULATION FEM FOR SKEW T-BEAM BRIDGE WITH MULTI-RIBBED SLABS[J]. Engineering Mechanics, 2003, 20(2): 163-167.

斜交多肋T梁桥空间计算的有限单元法

SPATIAL CALCULATION FEM FOR SKEW T-BEAM BRIDGE WITH MULTI-RIBBED SLABS

  • 摘要: 将斜交多肋T梁桥的桥面板视为斜形板梁,肋板视为普通板梁,并在构造其位移模式时考虑了T梁桥面板剪滞效应和局部弯曲的影响,然后根据斜交多肋T梁截面位移参数的变形协调关系来组拼其单元刚度矩阵,由此提出了斜交多肋T梁桥空间计算的斜形板梁有限单元法.

     

    Abstract: This paper deals with the spatial calculation FEM of skew T-beam bridge with multi-ribbed slabs. Firstly, the bridge floor deck and the ribbed slab of T-beam bridge with multi-ribbed slabs are taken as a skew slab-beam and a general slab-beam, respectively. Then the shear lag and the local bending of the bridge floor deck are considered in constituting the displacement function, and the element rigidity matrix is assembled according to the deformation coordination of T-beam section displacement parameter. Finally, the spatial calculation FEM for skew T-beam bridge with multi-ribbed slabs is proposed.

     

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