八边形薄壁高墩非线性稳定分析

Non-linear stability analysis of octagonal thin-wall high pier

论述了薄壁高墩的两类稳定问题,在考虑了几何非线性和材料非线性的基础上,结合仙神河斜拉桥的工程实例,对比分析了该部分斜拉桥的八边形薄壁高墩的稳定性,通过分析可知,考虑非线性影响的稳定分析对于指导工程实践具有更好的实际意义。

Two problems of thin-wall high pier＇ s stability are discussed in the following paper. On the basis of considering geometrical nonlinearity and material nonlinearity, the author carries out contrast analysis of the stability of octagonal thin-wall high pier in partial cable-stayed bridge combined with practical engineering of Xianshenhe cable-stayed bridge, and shows that stability analysis considering nonlinear influences has better practical meanings to guide engineering practices.