根据抗震墙结构、梁等以弯曲变形为主的结构和构件的变形特点 ,假定横向位移相等 ,提出了一种新的单元———偏八结点等横向位移有限元 ,通过算例证明其对于以弯曲变形为主的结构和构件 ,具有所需单元少、总刚小、计算精度高等特点 .本文提出的位移相等假定下的总刚集成方法 ,简单明了 ,具有通用性 . Based on the deformation characteristics of structures and members mainly consisting of bending deformation, such as seismic wall structures and beams, and assuming that the lateral displacements are equal, a new unit—the partial eight-node and other transverse-displacement finite element is proposed. For the structure and components mainly based on bending deformation, it has the characteristics of less required units, total rigidity and high calculation accuracy. The total rigid integration method under the assumption of equal displacement is proposed in this paper, which is simple, clear, and versatile.