According to principle of bridge vibration, this paper lead through boundary condition of free beam and deduce vibrational equation of free beam to solve rigidity and model of vibration.
本文根据桥梁的振动原理，引入简支桥梁的边界条件，推导简支桥梁的振动方程，求解出桥梁刚度、振型的实际运用公式。
In construction design, there is still no a reasonable uniform cost about the rigidity amplification coefficient of center beam and boundary beam.
在结构设计中，选择一个合理的中梁、边梁刚度放大系数和选择一个合理的梁端弯矩调幅系数一直没有得到一个统一的值。
In the appendix, a rigidity matrix representation of a boundary member such as the curved beam is presented.
在附录中列出边缘构件曲梁的刚度矩阵的形式。
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