1. Catastrophic model for stability analysis of high pile-column bridge pier
- Author
-
Jiang Chong (蒋冲), Liu Jianhua, Cao Wen-gui, and Zhao Ming-hua
- Subjects
Pier ,Engineering ,Critical load ,business.industry ,Mechanical Engineering ,Structural engineering ,Instability ,Condensed Matter::Soft Condensed Matter ,Buckling ,Mechanics of Materials ,General Materials Science ,Geotechnical engineering ,Catastrophe theory ,business ,Pile ,Bifurcation ,Beam (structure) - 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.
- Published
- 2007