A simple and visual method is used tO give shear stress distribution in symmetricalsection.
文中利用一个简单直观的方法，解出了对称截面情况下的剪应力分布。
2
The high natural frequencies of symmetricalsection beam with different constraints are calculated in detail, and effects of rotary inertia and shearing deformation are given.
计算了对称截面粱在不同边界条件下的高阶固有频率，讨论了转动惯量及剪切变形效应对各阶固有频率的影响。
3
The natural frequencies of symmetricalsection and non-symmetricalsection continuous-beam are calculated in detail, and results of continuous-beam with different constraint conditions are given.