Rehabilitation Techniques for Offshore Tubular Joints

Iqbal, Mohsin and Karuppanan, Saravanan and Perumal, Veeradasan and Ovinis, Mark and Rasul, Adnan (2023) Rehabilitation Techniques for Offshore Tubular Joints. Journal of Marine Science and Engineering, 11 (2). ISSN 2077-1312

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Exposure to load and offshore environment degrades the load-bearing capacity of tubular joints, necessitating reinforcement of these joints. Reinforcement is sometimes required for lifespan enhancement or qualification based on new requirements. Available reinforcement techniques include welded rings inside/outside the chord, doubler/collar plate at the brace-chord interface, grout filling, and clamp installation on the joints with/without cement. While these techniques increase the load-bearing capacity of damaged tubular joints, various practical limitations exist. Clamping may require heavy machinery, whereas welding stiffeners involves hot work and may not be permitted sometimes. Fiber-reinforced polymers (FRPs) have immense potential for reinforcing steel structures and are a viable alternative for rehabilitating tubular joints due to their exceptional mechanical and physical characteristics, offering competitive advantages over other methods. FRP reinforcement is becoming more feasible and economical for underwater joints. FRP reinforcement can be either precured, pre-impregnated, or wet layup. Aside from the significance of joint rehabilitation, a document covering the well-known options was lacking. This paper summarizes the advantages and limitations of these reinforcement methods, particularly FRP reinforcement. Possible research directions in FRP reinforcement of tubular joints are also discussed.

Item Type: Article
Identification Number:
6 February 2023Accepted
20 February 2023Published Online
Uncontrolled Keywords: tubular joints, joint reinforcement, joint rehabilitation, underwater joint repair
Subjects: CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-02 - mechanical engineering
Divisions: Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Dept. of Engineering
Depositing User: Mark Ovinis
Date Deposited: 11 Apr 2023 13:50
Last Modified: 11 Apr 2023 13:50

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