Strengthening effects evaluation on fatigue damage of rib to deck joint in orthotropic steel deck

Journal article (2023)

Authors

Haohui Xin Xi’an Jiaotong University
Jielin Liu Xi’an Jiaotong University
Jose A.F. Correia Universidade do Porto, Xi’an Jiaotong University
Filippo Berto Norwegian University of Science and Technology (NTNU), Xi’an Jiaotong University
M. Veljkovic Steel & Composite Structures - CEG
Fei Yang Chang'an University
Research Group
Steel & Composite Structures (CEG) (TU Delft)
Copyright: © 2023 Haohui Xin, Jielin Liu, Jose A.F. Correia, Filippo Berto, M. Veljkovic, Fei Yang
DOI
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https://doi.org/10.1016/j.engfailanal.2022.107041
Extended finite element method Orthotropic steel decks (OSDs) Prestressed strengthening method Rib to deck joint
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Published Date

2023

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Steel & Composite Structures

Abstract

Strengthening fatigue damage of orthotropic steel decks (OSDs) needs to comprehensively consider the strengthening effect and the dead weight introduced during the strengthening process, especially for OSDs in super large-span bridges or old renovated bridges, where the dead weight cannot be significantly increased during repair and maintenance. This paper proposed a new CFRP prestressed reinforcement method, that does not significantly increase dead weight while effectively inhibiting fatigue crack growth. The strengthening effects of various strengthening methods on the fatigue crack propagation of rib to deck joint in OSDs were compared. Besides, the strengthening effects of different crack sizes were also analyzed. The results showed that the proposed method is effective in reducing fatigue damage at the rib to deck joint in OSDs.