大跨度高桥墩减震设计方法应用研究

Applied research of large span high piers design method

本文根据结构动力学原理,建立桥墩的振动方程并求解,采用Duhamel积分给出桥墩的地震作用形式,并采用SAP2000进行计算.分析结果表明:适当调整与之相邻桥墩的质量和刚度,可使得高桥墩所受地震作用减小,这样设计的高桥墩其减震效果明显.

Based on the principle of structural dynamics, the paper aims to establish a bridge pier vibration equation and solve the equation. Duhamel integral is employed to give the seismic action in the form of piers,and calculation is made by using SAP2000. The results show that appropriate adjustment to the mass and stiffness of the adjacent pier can reduce the high pier＇s earthquake impact and the damming effect of the piers of this design is obvions.