Standard Svensk standard · SS-EN ISO 19901-2:2004

Petroleum and natural gas industries - Specific requirements for offshore structures - Part 2: Seismic design procedures and criteria (ISO 19901-2:2004)

Status: Upphävd

· Ersätts av: SS-EN ISO 19901-2:2018
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Standard Svensk standard · SS-EN ISO 19901-2:2004

Petroleum and natural gas industries - Specific requirements for offshore structures - Part 2: Seismic design procedures and criteria (ISO 19901-2:2004)
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Omfattning
This part of ISO 19901 contains requirements for defining the seismic design procedures and criteria for offshore structures; guidance on the requirements is included in Annex A. The requirements are applicable to fixed steel structures and fixed concrete structures. The effects of seismic events on floating structures and partially buoyant structures are also briefly discussed. The site-specific assessment of jack-ups in elevated condition is only covered in this part of ISO 19901 to the extent that the requirements are applicable.
Only earthquake-induced ground motions are addressed in detail. Other geologically induced hazards such as liquefaction, slope instability, faults, tsunamis, mud volcanoes and shock waves are mentioned and briefly discussed.
The requirements are intended to reduce risks to persons, the environment, and assets to the lowest levels that are reasonably practicable. This intent is achieved by using:
a) seismic design procedures which are dependent on the platform's exposure level and the expected intensity of seismic events;
b) a two-level seismic design check in which the structure is designed to the ultimate limit state (ULS) for strength and stiffness and then checked to abnormal environmental events or the accidental limit state (ALS) to ensure that it meets reserve strength and energy dissipation requirements.
For high seismic areas and/or high exposure level fixed structures, a site-specific seismic hazard assessment is required; for such cases, the procedures and requirements for a site-specific probabilistic seismic hazard analysis (PSHA) are addressed. However, a thorough explanation of PSHA procedures is not included.

Ämnesområden

Processutrustning (75.180.20)


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Standard Svensk standard · SS-EN ISO 19901-2:2004

Petroleum and natural gas industries - Specific requirements for offshore structures - Part 2: Seismic design procedures and criteria (ISO 19901-2:2004)
Prenumerera på standarden - Läs mer Dölj
Pris: 1 487 SEK
standard ikon pdf

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Pris: 1 487 SEK
standard ikon

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Produktinformation

Språk: Engelska

Framtagen av: Standardiseringsarbete utan svenskt deltagande, SIS/TK 998

Internationell titel: Petroleum and natural gas industries - Specific requirements for offshore structures - Part 2: Seismic design procedures and criteria (ISO 19901-2:2004)

Artikelnummer: STD-38241

Utgåva: 1

Fastställd: 2004-12-17

Antal sidor: 51

Ersätts av: SS-EN ISO 19901-2:2018