Journal
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
Volume 14, Issue 5, Pages 725-729Publisher
JOURNAL OF CENTRAL SOUTH UNIV
DOI: 10.1007/s11771-007-0138-5
Keywords
stability; pier; pile foundation; catastrophe theory; buckling; critical load
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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.
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