含面内转角自由度的四结点四边形单元  

A four-nodded quadrilateral finite element with in-plane rotational degree of freedom

作　　者：薛照钧[1] 

机构地区：[1]铁道第四勘察设计院,湖北武汉430063

出　　处：《山西建筑》2004年第18期1-3,共3页Shanxi Architecture

摘　　要：利用十二结点等参数单元的形函数 ,推导含转角自由度的四结点四边形膜元的单元刚度矩阵 ,该单元能直接与每个结点具有六个自由度的空间梁柱单元相联结 。In this paper, using the shape function of twelve nodded isoparametric element, thus the formulation of stiffness matrices of four nodded quadrilateral membrane element was derived, this element can be coupled directly with spacial beam and column elements which have six degrees of freedom with every joint, so the engineering problem can be solved effectively.

关 键 词：四边形单元 转角自由度 有限元 

分 类 号：TU311.4[建筑科学—结构工程]