论文部分内容阅读
本文提出一个多层和高层框架分析(包括静力分析,稳定分析和动力分析)的新方法——QR法,位移函数用B样条函数和正交多项式的乘积的线性组合构成,一个方向采用B样条函数,另一个方向采用正交多项式,以框架节点为B样条函数的结点,利用最小势能原理建立框架的计算格式。作者用Fortran77将这个方法编制了程序,并在IBM—PC/xt微机上实现。算例表明,这个方法是一个经济有效的方法。
This paper proposes a new approach to multi-layer and high-level framework analysis (including static analysis, stability analysis and dynamic analysis)—QR method. The displacement function is composed of a linear combination of products of B-spline functions and orthogonal polynomials. The B-spline function uses orthogonal polynomials in the other direction. The frame node is the node of the B-spline function, and the calculation format of the frame is established by using the principle of minimum potential energy. The author used Fortran77 to program this method and implemented it on an IBM-PC/xt microcomputer. Examples show that this method is a cost-effective method.