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Structure vulnerability and risk analysis of 4-legged offshore structure

Offshore structures are commonly used in oil and gas collecting sector. This industry is one of the major economic sector in Malaysia. Since distant earthquakes from neighbour countries (Indonesia and Philippines) had caused significant structural damages in the past few years, the perfomance level...

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Main Authors: Cheok, J. W., Kee, T. K., Chew, L. C., Saffuan, Wan Ahmad, A., Adnan
Format: Article
Language:English
Published: Penerbit UMP 2022
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/34403/1/Structure%20vulnerability%20and%20risk%20analysis%20of%204-legged%20offshore%20structure.pdf
http://umpir.ump.edu.my/id/eprint/34403/
https://doi.org/10.15282/construction.v2i1.7655
https://doi.org/10.15282/construction.v2i1.7655
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spelling my.ump.umpir.344032022-08-02T03:38:58Z http://umpir.ump.edu.my/id/eprint/34403/ Structure vulnerability and risk analysis of 4-legged offshore structure Cheok, J. W. Kee, T. K. Chew, L. C. Saffuan, Wan Ahmad A., Adnan TA Engineering (General). Civil engineering (General) Offshore structures are commonly used in oil and gas collecting sector. This industry is one of the major economic sector in Malaysia. Since distant earthquakes from neighbour countries (Indonesia and Philippines) had caused significant structural damages in the past few years, the perfomance level of offshore due to seismic effect need to be undergone detailed investigation. Therefore, this research aims to investigate the vulnerability and analyze the risk of 4-legged fixed offshore structure under different excitations. In order to achieve the objectives, SAP 2000 was chosen to analyze the offshore structure modelling by referring to the API (American Petroleum Institute) criteria. Time history, response spectrum and free vibration analysis have been performed. The behaviour of the offshore structure was observed and evaluated through the natural frequencies and periods. Meanwhile, results outcome of the joint displacement, velocity, and acceleration represented the dynamic characteristic of the structure. The 4-legged fixed offshore structure categorized as Immediate Occupancy (IO) based on FEMA 356 guidelines. From the results, it showed that existing 4-legged offshore structures in Malaysia are capable to resist seismic loads and in stable condition. Penerbit UMP 2022 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/34403/1/Structure%20vulnerability%20and%20risk%20analysis%20of%204-legged%20offshore%20structure.pdf Cheok, J. W. and Kee, T. K. and Chew, L. C. and Saffuan, Wan Ahmad and A., Adnan (2022) Structure vulnerability and risk analysis of 4-legged offshore structure. Construction, 2 (1). pp. 126-135. ISSN 2785-8731 https://doi.org/10.15282/construction.v2i1.7655 https://doi.org/10.15282/construction.v2i1.7655
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Cheok, J. W.
Kee, T. K.
Chew, L. C.
Saffuan, Wan Ahmad
A., Adnan
Structure vulnerability and risk analysis of 4-legged offshore structure
description Offshore structures are commonly used in oil and gas collecting sector. This industry is one of the major economic sector in Malaysia. Since distant earthquakes from neighbour countries (Indonesia and Philippines) had caused significant structural damages in the past few years, the perfomance level of offshore due to seismic effect need to be undergone detailed investigation. Therefore, this research aims to investigate the vulnerability and analyze the risk of 4-legged fixed offshore structure under different excitations. In order to achieve the objectives, SAP 2000 was chosen to analyze the offshore structure modelling by referring to the API (American Petroleum Institute) criteria. Time history, response spectrum and free vibration analysis have been performed. The behaviour of the offshore structure was observed and evaluated through the natural frequencies and periods. Meanwhile, results outcome of the joint displacement, velocity, and acceleration represented the dynamic characteristic of the structure. The 4-legged fixed offshore structure categorized as Immediate Occupancy (IO) based on FEMA 356 guidelines. From the results, it showed that existing 4-legged offshore structures in Malaysia are capable to resist seismic loads and in stable condition.
format Article
author Cheok, J. W.
Kee, T. K.
Chew, L. C.
Saffuan, Wan Ahmad
A., Adnan
author_facet Cheok, J. W.
Kee, T. K.
Chew, L. C.
Saffuan, Wan Ahmad
A., Adnan
author_sort Cheok, J. W.
title Structure vulnerability and risk analysis of 4-legged offshore structure
title_short Structure vulnerability and risk analysis of 4-legged offshore structure
title_full Structure vulnerability and risk analysis of 4-legged offshore structure
title_fullStr Structure vulnerability and risk analysis of 4-legged offshore structure
title_full_unstemmed Structure vulnerability and risk analysis of 4-legged offshore structure
title_sort structure vulnerability and risk analysis of 4-legged offshore structure
publisher Penerbit UMP
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/34403/1/Structure%20vulnerability%20and%20risk%20analysis%20of%204-legged%20offshore%20structure.pdf
http://umpir.ump.edu.my/id/eprint/34403/
https://doi.org/10.15282/construction.v2i1.7655
https://doi.org/10.15282/construction.v2i1.7655
_version_ 1740825839556100096
score 13.211869

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