部分共同作用组合梁单元刚度矩阵改进  

IMPROVEMENT OF THE ELEMENT STIFFNESS MATRIX FOR PARTIAL COMPOSITE BEAM

作　　者：赵建昌[1] 

机构地区：[1]兰州交通大学土木工程学院

出　　处：《力学与实践》2007年第5期46-49,共4页Mechanics in Engineering

基　　金：兰州交通大学"青蓝"人才工程基金资助.

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.With the homogeneous solution to the equilibrium equation for steel-concrete composite beams taken as the displacement function of the beam element with steel, concrete and elastic intermediate layer integrated together, the element stiffness matrix and equivalent node loads are obtained, without the hypothesis that the slip of the two ends of the element is zero. An effective and powerful tool is offered for analyzing the complicated structure of composite beams.

关 键 词：平衡微分方程 齐次解 位移函数 单元刚度矩阵 

分 类 号：TU398.9[建筑科学—结构工程]