变截面高桥墩稳定性设计问题研究

随着桥墩高度的增加，桥墩稳定性问题愈来愈突出。针对变截面高桥墩设计中的稳定性问题进行研究，首先研究了高桥墩的发展概况，然后以材料力学中挠曲方程为基本方程，详细推导了变截面桥墩的稳定计算公式，分析了桥墩墩身布置对临界力的影响，供设计人员参考。

Study on Stability Design Issue of High Pier with Variable Section

Along with the increasing height of pier, its stability problem is more and more important. This article focally investigates the stability design issue of the high pier, firstly presents the development of the high pier, secondly detailedly derives the stability caculation formulation based on the basic flexural formula, and then analyse the influence of the pier arrangement on the critical force, as a reference for the designer.