Rehabilitation Techniques for Offshore Tubular Joints

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 ring...

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Main Authors: Mohsin Iqbal, Saravanan Karuppanan, Veeradasan Perumal, Mark Ovinis, Adnan Rasul
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/11/2/461
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author Mohsin Iqbal
Saravanan Karuppanan
Veeradasan Perumal
Mark Ovinis
Adnan Rasul
author_facet Mohsin Iqbal
Saravanan Karuppanan
Veeradasan Perumal
Mark Ovinis
Adnan Rasul
author_sort Mohsin Iqbal
collection DOAJ
description 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.
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spelling doaj.art-da36612771e247a69f1e249a87c6581a2023-11-16T21:29:29ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-02-0111246110.3390/jmse11020461Rehabilitation Techniques for Offshore Tubular JointsMohsin Iqbal0Saravanan Karuppanan1Veeradasan Perumal2Mark Ovinis3Adnan Rasul4Mechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaMechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaMechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaSchool of Engineering and the Built Environment, Birmingham City University, Birmingham B4 7XG, UKMechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaExposure 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.https://www.mdpi.com/2077-1312/11/2/461tubular jointsjoint reinforcementjoint rehabilitationunderwater joint repair
spellingShingle Mohsin Iqbal
Saravanan Karuppanan
Veeradasan Perumal
Mark Ovinis
Adnan Rasul
Rehabilitation Techniques for Offshore Tubular Joints
Journal of Marine Science and Engineering
tubular joints
joint reinforcement
joint rehabilitation
underwater joint repair
title Rehabilitation Techniques for Offshore Tubular Joints
title_full Rehabilitation Techniques for Offshore Tubular Joints
title_fullStr Rehabilitation Techniques for Offshore Tubular Joints
title_full_unstemmed Rehabilitation Techniques for Offshore Tubular Joints
title_short Rehabilitation Techniques for Offshore Tubular Joints
title_sort rehabilitation techniques for offshore tubular joints
topic tubular joints
joint reinforcement
joint rehabilitation
underwater joint repair
url https://www.mdpi.com/2077-1312/11/2/461
work_keys_str_mv AT mohsiniqbal rehabilitationtechniquesforoffshoretubularjoints
AT saravanankaruppanan rehabilitationtechniquesforoffshoretubularjoints
AT veeradasanperumal rehabilitationtechniquesforoffshoretubularjoints
AT markovinis rehabilitationtechniquesforoffshoretubularjoints
AT adnanrasul rehabilitationtechniquesforoffshoretubularjoints