弯曲内力图的一种实用画法

在构件的强度设计中,弯曲内力图是十分重要的依据,但一般绘制弯曲内力图的方法比较复杂.本文介绍一种既准确又快速的绘制方法:在构件承受均布力、集中力、集中力偶等载荷情况下,可由载荷图直接画出剪力图.由载荷图、剪力图直接画出弯矩图,从而避免了繁琐的计算.

A PRACTICAL METHOD FOR DRAWING BENDING INTERNAL FORCE DIAGRAM

In the strength design of components, the bending internal force diagram is a very important basis,but it is comparatively complex to draw this diagram by a common method.In this article,we introduce an exact and quick method. That is when the components are under uniformly distributed force, concentrated force and concentrated force couple, we can obtain the shear force diagram directly from the laod diagram. And from the load and shear fcrce diagrams we can draw out the bending moment diagram directly.Thus, we can avoid some trouble calculations.