Fatigue Behavior of Segmental Precast Concrete Decks Post-Tensioned with GFRP Rods
Article
| Article Title | Fatigue Behavior of Segmental Precast Concrete Decks Post-Tensioned with GFRP Rods |
|---|---|
| ERA Journal ID | 4221 |
| Article Category | Article |
| Authors | Ebrahimzadeh, Shahrad, Manalo, Allan, Alajarmeh, Omar, Sorbello, Charles Dean, Weerakoon, Senarath, Hassanli, Reza and Benmokrane, Brahim |
| Journal Title | Journal of Composites for Construction |
| Journal Citation | 29 (5) |
| Article Number | 04025040 |
| Number of Pages | 15 |
| Year | 2025 |
| Publisher | American Society of Civil Engineers |
| Place of Publication | United States |
| ISSN | 1090-0268 |
| 1943-5614 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1061/JCCOF2.CCENG-5282 |
| Web Address (URL) | https://ascelibrary.org/doi/full/10.1061/JCCOF2.CCENG-5282 |
| Abstract | This study investigates the cyclic behavior of segmental precast concrete decks reinforced and post-tensioned with glass fiber–reinforced polymer (GFRP) rods, replicating the repetitive loading conditions induced by sea waves during service. Large-scale decks with different levels of post-tensioning in the GFRP rod and loading conditions were prepared and evaluated under a repetitive three-point flexural load. The results of the experimental tests, including load–displacement behavior, strain response, axial load, and failure mechanisms, are presented and analyzed. According to the results, the level of fatigue loading strongly impacts the behavior of GFRP-RC monolithic concrete decks. It was shown that a monolithic deck with a reinforcement ratio of 1.68% could withstand 1 million cycles of wave loading at fatigue stress equal to 0.21 Mu (ultimate bending moment) without showing any sign of cracking. However, increasing the fatigue stress to 0.3 Mu caused failure after 20,585 cycles due to shear compression failure. By applying a precompression stress of 1 MPa, the segmental precast concrete decks could achieve >1,000,000 fatigue cycles without any failure, but only a slight GFRP rod axial load relaxation. The outcome of this study enhances the understanding of the fatigue behavior of the segmental deck with noncorrosive GFRP rods, demonstrating their suitability for onshore maritime infrastructures. |
| Keywords | Fatigue; Post-tensioned segmental deck; Precast concrete; Glass fiber–reinforced polymer (GFRP); Cyclic behavior |
| Related Output | |
| Is part of | Structural Behaviour of Post-tensioned Pre-cast Segmental Decks for Flood Resilient Pontoons |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 400505. Construction materials |
| Public Notes | This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://doi.org/10.1061/JCCOF2.CCENG-5282 |
This article is part of a UniSQ Thesis by publication. See Related Output. | |
| Byline Affiliations | Centre for Future Materials |
| Institute for Space, Defence and Advanced Technologies | |
| Department of Transport and Main Roads, Queensland | |
| University of South Australia | |
| University of Sherbrooke, Canada |
https://research.usq.edu.au/item/101296/fatigue-behavior-of-segmental-precast-concrete-decks-post-tensioned-with-gfrp-rods
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