桥墩基频计算模型参数的研究

Research into the model parameters of calculating natural frequency of the bridge pier

根据相似性原理，对实体桥墩建立实验模型，测出单墩的基本频率。建立了考虑地基弹性约束影响的有限元单墩模型，并将有限元计算基频与模型实验测得的结果进行比较，从而证明有限元建模正确。

According to the principle of comparability, this paper establishes a experimental model for the entitative pier and tests to find out the natural frequency of it, Besides, a finite element pier model is built, where the interaction of the pier and the foundation soil is considered. In addition, comparison is made with results of both the experiment and the finite element methods, which prove the error of this finite element model satisfies the need for engineering and can be applied to compute the bridge pier, considering the effect of the soil-foundation.