部分共同作用组合梁单元刚度矩阵改进

  • 摘要: 以钢-混凝土组合梁平衡微分方程的齐次解作为组合梁单元的位移函数,取消了要求单元两端滑移量为零的假定,给出了钢、混凝土和弹性夹层合而为一的组合梁单元刚度矩阵和等效节点荷载,为更好地分析由组合梁组成的复杂结构提供了有力的分析工具.

     

    Abstract: With the homogeneous solution to the equilibrium equation for steel-concretecomposite beams taken as the displacement function of the beam element withsteel, concrete and elastic intermediate layer integrated together, theelement stiffness matrix and equivalent node loads are obtained, without thehypothesis that the slip of the two ends of the element is zero. Aneffective and powerful tool is offered foranalyzing the complicated structure of composite beams.

     

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