The stiffness matrix, equivalent nodalload and consistent mass matrix are derived for the beam element with variable cross-section.
导出了变截面梁单元的单元刚度矩阵、单元等效节点荷载和单元一致质量矩阵。
2
Furthermore, considering the load of highway structure and vehicle load, and through converting them to equivalent nodalload, the increased displacements are also obtained.
此外，将结构层及车辆荷载折算成相应结点荷载，计算出由车辆等荷载引起的位移增加值。
3
A thorough study has been made in respect of dividing of space finite elements, treatment of boundary conditions and equivalent nodalload of bending and reverse loads, etc.