Timoshenko梁理论应用于结构损伤的动力分析

应用Hamilton原理，导出了Timoshenko梁的动力学偏微分方程组。将土和结构视为一个系统，接近实际状况的简化为一个几何非线性的Timoshenko梁，并与Bernoulli—Euler的初等假设理论进行比较，讨论了长细比对粱的动力学特性的影响，在此基础上研究房屋结构损伤诊断的问题。

Dynamical Analyis of Structure Damage with Theory of Timoshenko Beam

A group of integro-partial-fluxional dynamical equations of the Timoshenko beam were educed by using of the Hamilton's principle. Soil and structure were considered in one system. According to actual case, the system was reduced to a geometrical nonlinear and physical linear Timoshenko beam and compared with the theory of Bernoulli-Euler's primary suppose. The influences of the ratio of length and width on the dynamical characteristic of the beam were discussed. And bassed on this, the diagnoses of structural damage of building was studied.