弯曲梁上剪力、弯矩和分布载荷间微分关系

Differentiation Relation among Shear,Bending Moment and Distribution Load of Bending Beam

学习梁的弯曲变形必然要分析梁横截面上的内力,最基本的方法是采用截面法进行逐段进行截取分析求出其剪力和弯矩,但是这种方法非常复杂和繁琐。根据多年的教学、研究和分析,找出了一个求解弯曲梁界面剪力图和弯矩图的方法,可以省去繁琐的截面法求解过程,不用列剪力方程和弯矩方程快速画出剪力图和弯矩图。

Learning beam bending deformation is bound to analyze the internal force of cross section,the most basic method is adopted to intercept stage section method and analysis to calculate the shear and moment,but this method is very complex and difficult.Based on my many years of teaching,study and analysis,I found a method to solve bending beam interface shear figure and plot.This method can save tedious solving process of section method and needn＇t solving shear equation and bending moment equation and can fast draw shear figure and plot.