摘要
本文通过对圆截面梁双向弯曲的深入研究,澄清了梁的斜弯曲和双向弯曲的区别与联系.用叠加法讨论了圆截面梁双向弯曲时截面上中性轴位置与截面合弯矩矢的方位关系,推出了圆截面梁双向弯曲时最大正应力的计算公式.
By means of thorough studying the two-way bending of the circular beam , this paper clarifies the difference and the relationship between the oblique bending and the two-way bending of beams. On the circular cross section of a two-way bending beam .the relationship between the position of the resultant bending moment vector and the position of the neutral axis is discussed,and the maximum direct stress formula for two-way bending beams with circular sections is derived by superposition method.
关键词
斜弯曲
双向弯曲
叠加原理
梁
圆截面
Oblique bending Two-way bending Principle of superposition
