面积法作平面弯曲梁的内力图

Using Acreage- method to Draw Internal Force Chart of Bending Beam

在总结内力作图方法的基础上,推导了作平面弯曲梁内力图的一种快速作图法——面积法。这种方法根据微积分关系,确定曲线的始点、形状和末点,即可直接得到不同外力作用下平面弯曲梁的内力图,简捷且易掌握。

Based on the present methods, this paper puts up a rapid method, acreage-method to draw intemal force chart of bending beam. According to the calculus relation, the internal force chart can be gained by confirming the begin points, figure shape, ending points. This method is simple and easy to be grasped.