桥梁管柱基础振动下沉时最佳振动频率的确定

Determination of Optimum Oscillation Frequency in the Process Of Vibration Subsidence of Pipe-column Foundations of Bridge

本文针对桥梁管柱基础振动下沉动力要求高,且不能调频等不足,应用动力学理论建立管柱振动体系的数学模型,运用简化牛顿迭代法求解,并设计了计算机程序。经实例计算,不同土质的振动频率,其结果与试验结论相符,为振动下沉管柱调频问题找到了一种有效的途径。

According to high request in dynamics and the possibility of the adjusting of the frequency in the process of vibrating subsidence of pipe-column foundations of bridge, this paper using dynamics principle forms a mathmatic model on system of pipe-column vibrafion, and using iterative method of Newton solute mathmatic equation designs a computor program. For realy instance, calculated frequencies of osscillation on different solum, are analogous with the resulcs of test. A good way on frequency adjustment of vibration subsidence of pipe-column foundations is found.