Catastrophic model for stability analysis of high pile-column bridge pier

来源期刊：中南大学学报(英文版)2007年第5期

论文作者：赵明华 蒋冲 曹文贵 刘建华

文章页码：725 - 725

Key words：stability; pier; pile foundation; catastrophe theory; buckling; critical load

Abstract: According to the engineering features of higher pile-column bridge pier in mountainous area, a clamped beam mechanical model was set up by synthetically analyzing the higher pile-column bridge pier buckling mechanism. Based on the catastrophe theory, the cusp catastrophe model of higher pile-column bridge pier was established by the determination of its potential function and bifurcation set equation, the necessary instability conditions of high pile-column bridge pier were deduced, and the determination method for column-buckling and lateral displacement of high pile-column bridge pier was derived. The comparison between the experimental and calculated results show that the calculated curves agree with testing curves and the method is reasonable and effective.

基金信息：the National Natural Science Foundation of China