一种新的墙单元

本文提出了一种新的空间墙单元模型，这种墙单元把土建中常用的剪力墙作为它的一种特殊情形．本文基于四边形单元所提出的墙单元在平面内是一块膜，它除面内的两个平动自由度外还具有绕平面转动的自由度；平面外是一块弯曲板．因而它是膜和板的一个组合，它的每个节点具有空间的全部六个自由度．由于考虑了空间墙平面内和平面外的刚度，因此这种新的墙单元能够直接与三维框架的梁、柱单元连接．它也能很容易地处理墙的空间变形。

A new model of wall element

A new model of three dimensional wall element including shear-wall which is very often used in building design is presented. This new element is based on quadrilateral shell element with automatic refinement function. This basic model of wall is a combination of spatial membrane with drilling degree of freedom and bending plate. So each node of the element has all six degrees of freedom, which makes it easy to join wall with three dimensional frame. Since the contribution of the stiffness in plane and flexural stiffness out of plane are both considered, this new wall element can be directly joined with any three dimensional beam or column. It can be easily used to deal with spatial deformation of wall with or with out opennings.