A review on defects in steel offshore structures and developed strengthening techniques

A. Dehghani, Farhad Aslani

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

There is a high demand for life extension of offshore structures in different regions, such as Gulf of Mexico, North Sea, Malaysian and Australian waters, and etc., that are now reaching, or have exceed, their design life. An integral part of any life extension programme after assessing fitness for purpose (FFP) of the structure is strengthening, modification and repair (SMR) schemes. SMR provides a backbone to ensure structural integrity of platforms. In the context of offshore structures, however, SMR is a highly multidisciplinary engineering task requiring various skills and knowledge. This paper provides an insight on the different aspects related to this subject, from different types of offshore structures and respective loads to a comprehensive review on damages to steel offshore platforms as well as on the development in available SMR techniques. Furthermore, FFP assessment process for existing offshore platforms is briefly discussed based on the present guidelines. Finally, several gaps in the respective knowledge still needed to be addressed are introduced.

Original languageEnglish
Pages (from-to)635-657
Number of pages23
JournalStructures
Volume20
DOIs
Publication statusPublished - 1 Aug 2019

Fingerprint

Offshore structures
Repair
Defects
Steel
Plant life extension
Structural integrity
Water

Cite this

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A review on defects in steel offshore structures and developed strengthening techniques. / Dehghani, A.; Aslani, Farhad.

In: Structures, Vol. 20, 01.08.2019, p. 635-657.

Research output: Contribution to journalReview article

TY - JOUR

T1 - A review on defects in steel offshore structures and developed strengthening techniques

AU - Dehghani, A.

AU - Aslani, Farhad

PY - 2019/8/1

Y1 - 2019/8/1

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AB - There is a high demand for life extension of offshore structures in different regions, such as Gulf of Mexico, North Sea, Malaysian and Australian waters, and etc., that are now reaching, or have exceed, their design life. An integral part of any life extension programme after assessing fitness for purpose (FFP) of the structure is strengthening, modification and repair (SMR) schemes. SMR provides a backbone to ensure structural integrity of platforms. In the context of offshore structures, however, SMR is a highly multidisciplinary engineering task requiring various skills and knowledge. This paper provides an insight on the different aspects related to this subject, from different types of offshore structures and respective loads to a comprehensive review on damages to steel offshore platforms as well as on the development in available SMR techniques. Furthermore, FFP assessment process for existing offshore platforms is briefly discussed based on the present guidelines. Finally, several gaps in the respective knowledge still needed to be addressed are introduced.

KW - Defects

KW - Life extension

KW - Offshore structures

KW - Steel

KW - Strengthening techniques

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