梁的刚度设计的二因子法

Two-factor Method for Beam's Stiffness Design

针对简支梁、外伸梁及多跨连续梁变形分析的种种困难 ,提出了拟固定端的概念 ,并且给出确定拟固定端的位置的方法。进而把所有的梁全部转化为拟悬臂梁 ,把所有的荷载转化为集中力或由集中力得到的结果。由此便可由悬臂梁的结果 Pl33EI及 Pl22EI依悬臂梁的方法求解所有梁的变形极值 ,这将对梁的刚度设计具有重要意义 ,对于计算的程序化 ,特别是连续梁的计算具有相当的优势。

In order to overcome difficulties in analyzing deformation of simple supporting beam,outstretched beam and multiple span continuous beam,the paper puts forward a conception of simulated regular and gives the way to define the location of the simulated regular end,then transforms all beams into simulated cantilever beams,transforms all loadings into concentrated forces,orto get results from concentrated forces. Consequently, all beams can be solved to obtain deformation limit values as if to solve a cantilever beam by applying formulas Pl 33EI and Pl 22EI. The method is beneficial in convert calculation in programming, especially in solving continuous beams.