Effects of Curvature Radius on Seismic Response of Curved Box-Girders Bridge

Abstract:

Taking an engineering design case about a three-span uniform section continuous curved box-girders bridge of city viaduct,this paper sets up a finite element calculating model for the curved box-girders bridge by means of finite element analysis program ANSYS and researchs the influence of dynamic characteristic and seismic response on curved box-girders bridge with the different curvature radius under the same span. The analysis results show that in the same span of curved beam , the low-level frequency impact of changes in different curvature radius of the curved beam bridge is larger,the curvature radius is an importance parameter which influence on dynamic characteristic, and have significant influence on tangential stiffness、radial stiffness and seismic response of curved box-girders bridge.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 1543-1546
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.1543
• Online since: July 2014
• Authors: Qing Zhao
• Keywords: Curvature Radius, Curved Box-Girders, Dynamic Characteristic, Seismic Response

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