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Abstract

Orthotropic steel bridge decks are prone to fatigue cracking. The adoption of steel fiber reinforced concrete (SFRC) composite bridge decks is one of the solutions. Through the wheeled rolling loading fatigue test simulating the actual wheel load on the full-scale model of the SFRC composite bridge deck, three connection methods, namely adhesive, stud, and a mixture of adhesive and stud, were respectively adopted between the concrete layer and the orthotropic steel bridge deck structure layer to study the fatigue deformation of the composite bridge deck and the failure evolution mode of each component. Then, the crack development behavior of the SFRC structural layer was analyzed through numerical simulation. The results show that SFRC can significantly reduce the fatigue stress of the welding construction details of the bridge deck, and its fatigue performance has been significantly improved. The stud connection makes the overall performance of the composite bridge deck better and is suitable as the connection method between the SFRC and the steel deck.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.021

First Page

115

Last Page

121

Submission Date

May 2025

Reference

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