考虑箱形截面梁剪力滞后效应的影响，利用推导出的箱形截面梁的弯曲振动方程及其自然边界条件，并据此进一步推导出了多跨箱形截面梁的固有频率方程。

Thinking over the influence of box beams shear lag effect, making use of the governing different equations and related natural boundary conditions of bending vibration to box girder.

youdao

考虑箱形截面梁剪力滞后效应的影响，利用推导出的箱形截面梁的弯曲振动方程及其自然边界条件，并据此进一步推导出了多跨箱形截面梁的固有频率方程。

Thinking over the influence of box beams shear lag effect, making use of the governing different equations and related natural boundary conditions of bending vibration to box girder.

youdao