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Reliability-based design and assessment for lifetime extension of ageing offshore structures

The methodology for Reliability-Based Design and Assessment (RBDA) of an ageing fixed steel offshore structure was established to support detailed re-assessment applied to the management of the structure's safety, integrity analysis and reliability by evaluating the loading acting on the struct...

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Main Authors: Mat Sooma, E., Abu Husain, M. K., Mohd. Zaki, N. I., Azman, N. U., Najafian, G.
Format: Conference or Workshop Item
Published: American Society of Mechanical Engineers (ASME) 2016
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/73673/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84996477063&doi=10.1115%2fOMAE2016-54206&partnerID=40&md5=1ca5c3f289c6301666e7c92ca8e66b74
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spelling my.utm.736732017-11-28T08:38:32Z http://eprints.utm.my/id/eprint/73673/ Reliability-based design and assessment for lifetime extension of ageing offshore structures Mat Sooma, E. Abu Husain, M. K. Mohd. Zaki, N. I. Azman, N. U. Najafian, G. T Technology (General) The methodology for Reliability-Based Design and Assessment (RBDA) of an ageing fixed steel offshore structure was established to support detailed re-assessment applied to the management of the structure's safety, integrity analysis and reliability by evaluating the loading acting on the structure. It is a tool for the high-end analysis of the structure for risk-based design assessment and has been succesfully implemented in the North Sea under Shell operating company. The main purposes of RBDA are to manage a structure's risk level over its remaining service life and to initiate the cost-efficient inspection or mitigation actions (if required). This method consists of Type I and II uncertainties used to determine the probability of failure for the structure over its remaining service life. However, limited work has been done so far on its application at many different regions, particularly in the South East Asia. Therefore, this paper investigates the robustness of the RBDA methodology applied to fixed offshore structures at shallow waters of Malaysia by considering the native environmental criteria, local authorities' obligation and company requirements. It is shown that this procedure can efficiently assist in understanding the structure's failure mechanism and correctly define the relevant type of mitigations required. American Society of Mechanical Engineers (ASME) 2016 Conference or Workshop Item PeerReviewed Mat Sooma, E. and Abu Husain, M. K. and Mohd. Zaki, N. I. and Azman, N. U. and Najafian, G. (2016) Reliability-based design and assessment for lifetime extension of ageing offshore structures. In: ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016, 19-24 June 2016, Busan, South Korea. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84996477063&doi=10.1115%2fOMAE2016-54206&partnerID=40&md5=1ca5c3f289c6301666e7c92ca8e66b74
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Mat Sooma, E.
Abu Husain, M. K.
Mohd. Zaki, N. I.
Azman, N. U.
Najafian, G.
Reliability-based design and assessment for lifetime extension of ageing offshore structures
description The methodology for Reliability-Based Design and Assessment (RBDA) of an ageing fixed steel offshore structure was established to support detailed re-assessment applied to the management of the structure's safety, integrity analysis and reliability by evaluating the loading acting on the structure. It is a tool for the high-end analysis of the structure for risk-based design assessment and has been succesfully implemented in the North Sea under Shell operating company. The main purposes of RBDA are to manage a structure's risk level over its remaining service life and to initiate the cost-efficient inspection or mitigation actions (if required). This method consists of Type I and II uncertainties used to determine the probability of failure for the structure over its remaining service life. However, limited work has been done so far on its application at many different regions, particularly in the South East Asia. Therefore, this paper investigates the robustness of the RBDA methodology applied to fixed offshore structures at shallow waters of Malaysia by considering the native environmental criteria, local authorities' obligation and company requirements. It is shown that this procedure can efficiently assist in understanding the structure's failure mechanism and correctly define the relevant type of mitigations required.
format Conference or Workshop Item
author Mat Sooma, E.
Abu Husain, M. K.
Mohd. Zaki, N. I.
Azman, N. U.
Najafian, G.
author_facet Mat Sooma, E.
Abu Husain, M. K.
Mohd. Zaki, N. I.
Azman, N. U.
Najafian, G.
author_sort Mat Sooma, E.
title Reliability-based design and assessment for lifetime extension of ageing offshore structures
title_short Reliability-based design and assessment for lifetime extension of ageing offshore structures
title_full Reliability-based design and assessment for lifetime extension of ageing offshore structures
title_fullStr Reliability-based design and assessment for lifetime extension of ageing offshore structures
title_full_unstemmed Reliability-based design and assessment for lifetime extension of ageing offshore structures
title_sort reliability-based design and assessment for lifetime extension of ageing offshore structures
publisher American Society of Mechanical Engineers (ASME)
publishDate 2016
url http://eprints.utm.my/id/eprint/73673/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84996477063&doi=10.1115%2fOMAE2016-54206&partnerID=40&md5=1ca5c3f289c6301666e7c92ca8e66b74
_version_ 1643656717124239360
score 13.211869

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