Analysis of Dynamic Characteristics of Pile-Soil Coupling Effect in Consideration of Large Span Cable-Stayed Bridge

Abstract:

Using the viscouselastic artificial boundary, three conditions of long-span cable-stayed bridge are analyzed,such as pile cap consolidation, pile - structure and pile soil structure interaction. Natural frequency of bridge of pile - soil - structure coupling becomes small and cycle becomes long. The pile bottom reaction force decreased obviously, at the same time, the axial force , bending moment, axial force of cable, tower of axial force and bending moment is also reduced significantly. Cable-stayed bridge is a special flexible structure, so, static internal force calculation in the tower bottom consolidation pattern is safe, but the value is too large.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1270-1273
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1270
• Online since: January 2014
• Authors: Wen Yuan Chen
• Keywords: Large Span Cable-Stayed Bridge, Pile Cap Consolidation, Pile-Soil-Structure, Pile-Structure, Viscouselastic Artificial Boundary

References

[1] Xiao Xiaochun. Doctoral dissertation of Dalian University of Technology numerical simulation of [D]. seismic soil pile superstructure dynamic interaction, (2003).

[2] Liu Jingbo, Wang Zhenyu, Du Xiuli, Du Yixin. Wave problem in three dimensional time-domain viscoelastic artificial boundary. [J]. engineering mechanics, 2005, 22 (6): 46-51.

[3] Liao Zhenpeng. Introduction to engineering wave theory (Second Edition) [M]. Beijing: Science Press, (2002).

[4] Gong Shuguang, Xie Guilan. The programming [M]. Machinery Industry Press ANSYS commands and parameters, (2004).

[5] the United States of America ANSYS company to develop two times help manual [M]. (2001).