众所周知,有限元法是结构分析中一种通用而又有效的数值分析方法。理论上,它可适用于分析所有的结构,然而,事实上它的应用却常常受到限制,因为,它除必须采用大型的计算机外,还常常要花费很多机时和昂贵的解题费用。鉴于这一点,同时也鉴于许多常用结构都具有相当规则的几何形状的事实,一种简单、有 As we all know, finite element method is a general and effective numerical analysis method in structural analysis. In theory, it is suitable for analyzing all structures, however, its use is often limited in practice because it often costs a lot of time and costly problem-solving costs apart from having to use a large computer. Given this fact, and given the fact that many common structures have rather regular geometries, a simple,