Analysis of Curved Girder Bridge Seismic Collision with Implicit Contact Algorithm

Abstract:

Aiming at the collision phenomenon of the curved continuous girder bridge under the earthquake, the three-dimensional finite element model is established considering the collision element between the abutment and the end beam. Using the nonlinear time-integration method, the simulation analysis on the collision with implicit contact algorithm is used, and the collision law at expansion joints of curved gride bridge is studied. The results indicate that the shear forces and bending moments of piers with different heights are different. The collision force at the central part of the cross-section is small, and it gradually increases toward both sides of the cross-section with parabola. The outer collision force is bigger than the inner collision force, and the response of Elcentro ground motion is more obvious than that of Tianjin. The results may serve as a reference for seismic design of curved continuous bridges.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 1898-1901
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.1898
• Online since: September 2011
• Authors: Qiang Xu, Xing Jun Qi
• Keywords: Contact Pair, Curved Continuous Girder Bridge, Seismic Collision

References

[1] Chiyu Jiao: Research on Computation Module and Dynamic Response of Urban Curved Viaduct Xi'an University of Architecture Technology, March 2006. (In Chinese)

[2] Lili Cui: Pounding Analysis and Control of City Viaduct under Earthquake Excitation Harbin Institute of Technology June 2006. (In Chinese)

[3] JTJ 004-89, Specifications of Earthquake Resistant Design of Highway Engineering. (In Chinese)

[4] Lichu Fan: Bridge Seismic .Shanghai Tongji University Press, 1997. (In Chinese)

[5] Lichu Fan, Shide Hu and Aijun Ye:Seismic Design of Long Span Bridges,Shanghai Tongji University,2000. (In Chinese)