摘要
在用有限单元法计算实际工程结构时,经常会遇到杆件结构与块体结构的连接问题。本文提出一种杆件-块体连接单元的数学模型,物理概念比较直观,可以从现在已有的普通杆件单元的有关计算公式换算成连接单元的计算公式,计算比较简便。文中给出了平面问题正交及斜交连接单元及空间问题正交连接单元的有关计算公式。
The problem of connecting one dimensional structural members with three dimensional massive solids is frequently confronted when FEM is applied to stress analysis in practical engineering. In this paper a mathematical model is proposed for connecting structural members with massive solids. The stiffness matrix of the connecting element is derived from that of the conventional element. The physical idea is clear and the computation is simple. Formulas are given for normal and inclined connecting elements of plane problem and for normal connecting elements of spatial problem.
出处
《水利学报》
EI
CSCD
北大核心
1989年第11期18-27,共10页
Journal of Hydraulic Engineering
