Sensitivity Analysis on the Influence Factors of Mid-Span Deflection for Continuous Rigid Frame Bridge

Abstract:

The common problem of continuous rigid frame bridge is excessive mid-span deflection. The three factors of excessive deflection including vehicle loads, structural rigidity and prestressed loss are discussed on the case of a three spans continuous rigid frame bridge. Midas Civil is applied to analyze the sensitivity of mid-span deflection for these factors. The results indicate that the deflection is increasing with the increase of vehicle loads or the decrease of structural rigidity or the increase of prestressed loss. Furthermore, mid-span deflection is the most sensitive to the change of prestressed loss.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 908-911
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.908
• Online since: December 2014
• Authors: Tian Hua Jiang, Li Ai, Lei Chen, Hong Xu
• Keywords: Deflection, Prestressed Loss, Sensitivity, Structural Rigidity, Vehicle Loads

References

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DOI: 10.1061/9780784482292.018

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