摘要
用无奇点边界元法处理弹性地基上的薄板；用有限元法处理加肋板上的肋梁（即格栅结构），根据弹性地基上的薄板与格栅之间的平衡与协调关系，将两种方法所建立的方程进行耦联，导出一组基本方程；求解板上选点的挠度和有关参数，进而求得板和肋梁的内力．本方法适于任意形状、多种边界条件以及不均匀地基上的加肋板．
The analysis of stiffened plates on elastic foundation is studied with coupling BEM and FEM.The thin plate on elastic foundation is analyzed with nonsingularity BEM,and the grid component in the structure is treated with FEM.The coupling equations are derived from the conditions of equilibrium and compatibility.The deflections of plate and some parameters are calculated , and then the internal forces of plate and beams can be obtained. The method is suitable for stiffened plates in arbitrary shapes with boundary conditions and on nonhomogeneous foundation.
出处
《武汉城市建设学院学报》
1997年第3期5-9,共5页
Journal of Wuhan Urban Construction Institute
关键词
弹性地基板
加肋板
边界元
有限元
plate on elastic foundation
stiffened plate
boundary element method(BEM)
finite element method(FEM)
