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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit UMP
2022
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/34403/1/Structure%20vulnerability%20and%20risk%20analysis%20of%204-legged%20offshore%20structure.pdf |
| _version_ | 1825824026605387776 |
|---|---|
| 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. |
| collection | UMP |
| 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. |
| first_indexed | 2024-03-06T12:57:59Z |
| format | Article |
| id | UMPir34403 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:57:59Z |
| publishDate | 2022 |
| publisher | Penerbit UMP |
| record_format | dspace |
| spelling | UMPir344032022-08-02T03:38:58Z 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. (Published) https://doi.org/10.15282/construction.v2i1.7655 https://doi.org/10.15282/construction.v2i1.7655 |
| 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 |
| title | 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_short | Structure vulnerability and risk analysis of 4-legged offshore structure |
| title_sort | structure vulnerability and risk analysis of 4 legged offshore structure |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/34403/1/Structure%20vulnerability%20and%20risk%20analysis%20of%204-legged%20offshore%20structure.pdf |
| work_keys_str_mv | AT cheokjw structurevulnerabilityandriskanalysisof4leggedoffshorestructure AT keetk structurevulnerabilityandriskanalysisof4leggedoffshorestructure AT chewlc structurevulnerabilityandriskanalysisof4leggedoffshorestructure AT saffuanwanahmad structurevulnerabilityandriskanalysisof4leggedoffshorestructure AT aadnan structurevulnerabilityandriskanalysisof4leggedoffshorestructure |