柱轴向变形对高层框架结构柔度矩阵影响分析

Analysing the Effect of Axial Deformation of Column on Flexibility Matrix of a High-Rise Framed Structure

提出一个简单易用的公式 ,用来计算由框架柱轴向变形而引起的结构侧移 .据此分析了框架柱轴向变形对结构柔度矩阵的影响 ,并将计算结果与综合考虑弯曲变形、剪切变形和轴向变形等因素的微分方程解法作一比较 .表明所提出的方法具有较高的计算精度 ,同时由于方法简单 ,易于在工程中得到应用 .

A simple and easy formula is put forward for computing structural lateral displacement caused by axial deformation of framed column.On this basis,an analysis is given to the effect of axial deformation of framed column on flexibility matrix of structure; and a comparison is made between results from computation and results from solution of differential equation, with such factors as bending deflection and shearing deformation and axial deformation being all sidedly considered.The present method is shown to have fairly high precision in computation.As a simple method,it can be easily applied to engineering.