摘要
弯曲变形是工程构件最为常见的一种变形形式。无论在教学过程中,还是在实际工程中,快捷、准确地绘制受弯构件的内力图(剪力图、弯矩图)都是非常重要的。本文结合两个实例详细阐述了绘制弯曲构件内力图的方法——面积法。此方法利用了q(x)、Q(x)、M(x)的积分关系,将控制截面内力的计算方法转换成了简单的几何图形面积的计算,从而提高了绘制内力图的效率,可大大提高工程设计的计算效率。
In structural member, bending deformation is the most common form of deformation. It is very important to draw internal forces diagram （shear diagram, bending moment diagram） of bending member quickly and aaccurately whether in the teaching process or in the actual project. The drawing of internal forces diagram of bending member was demonstrated by two examples using the area method. The efficiency of drawing internal forces diagram increased by transforming the internal force of control section calculation to the area of simple geometric shapes calculation in virtue of the integral relations of q （x） , Q （x） and M （x） , and thus to greatly improve the computational efficiency of engineering design.
出处
《天津农学院学报》
CAS
2009年第3期32-35,55,共5页
Journal of Tianjin Agricultural University
关键词
剪力图
弯矩图
绘制
面积法
shear diagram
bending moment diagram
drawing
area method
