摘要
计算刚架临界荷载的方法受到荷载作用位置及求解特征方程的困扰［１］．因而未能推广到多层框架．本文提出的近似方法则不限制荷载作用位置，也无须求解特征方程．所有计算均极近刚架内力分析．
The unconvenience of calculation of stability for rigid frame are: 1. Thedistributed loads which act on the frame must be translated into concentratedloads acting on the nodes. 2. The solution of characteristic equations are verydifficult when the unknow factors are many. This paper gives an approximatemethod. It does not requre to change the loads and to solve characteristic equation. The computations of this method are like the analysis of a rigid frame.
关键词
结构力学
刚架结构
稳定性
calculation of stability, critical load, multiple rigid frame,theory of energy
