摘要
本文对有侧移且考虑轴向变形效应的高层建筑平面框架的计算分析提出了一种递推解法.其主要原理是,将多层刚架离散成一个个单层刚架,由结构力学知识,建立一层中上部结点量和下部结点量之间的关系式,即一层中的递推关系,再通过层与层之间的连续条件,建立刚架最底层下部结点量和最顶层上都结点量之间的关系式,解之可得底层下部未知结点量,然后由一层中的递推关系式,从底层开始向上逐层递推而求得所有结点量.这是一个不受几何物理参数与荷载形式所制约,对计算机容量要求较少而易于在微机上实现的精确方法,它比近年来其它文献所提出的一些方法更简单,适应性更强.
In this paper, the recurrence method is applied to the analysis of internal forces and displacements of high-rise building rigid frames considering axial deformation. The principle of the method is as follows. First, the frame is divided into several single-layer frames. A recurrence formula linking the upper point quantity and lower point quantity in one layer is obtained according to the structural mechanics knowledge. Then, from the recurrence formula and the continuous conditions between two layers, equations linking the top point quantity and bottom point quantity in one frame are derived and solved to obtain the unknown bottom point quantity. Finally, using the recurrence formula and the bottom point quantity, we can calculate other layer point quantity successively from the bottom layer to the top layer. This method is not limited in geometric and physical parameters and load form, needs less computer capacity and is an accurate method which can easily be realized on microcomputers.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1992年第3期32-37,共6页
Journal of Hohai University(Natural Sciences)
关键词
高层
建筑物
刚架
轴变效应分析
high-rise building
rigid frame
structure mechanics
recurrence method
initial parameter method
