Structural Stress Analysis of Trough to Deck Plate Weld in Orthotropic Steel Bridge Decks

Abstract:

A comparative study among five methods to calculate the structural stress of the trough to deck plate joint in orthotropic steel deck was carried out. The five methods used are surface stress extrapolation method (SSE), Haibach method, Xiao and Yamada method and CAB method. FEM analysis shows the five methods are mesh sensitive. Structural stress calculated using element type solid95 is larger than that of solid45. For fine and medium mesh model, structural stress calculated by Haibach method is larger than other methods, which means a lower fatigue life. Structural stress calculated by Yamada method is lower than other methods, which means a higher fatigue life than that calculated by other methods. For coarse mesh model, structure stress calculated by quadratic extrapolation method is larger than other methods, and, structural stress calculated by Yamada method is much lower than other methods.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 3270-3274
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.3270
• Online since: October 2012
• Authors: Man Man Wang, Ce Chen, Bo Hai Ji, Rong Liu, Duan Duan Zhao
• Keywords: Fatigue, Finite Element Method (FEM), Orthotropic Steel Bridge Deck, Structural Stress, Weld

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