SIST EN ISO 19901-3:2024
(Main)Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 3: Topsides structure (ISO 19901-3:2024)
Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 3: Topsides structure (ISO 19901-3:2024)
This document provides requirements, guidance and information for the design and fabrication of topsides structure for offshore structures, including in-service, pre-service and post-service conditions.
The actions on topsides structure and the action effects in structural components are derived from this document, where necessary in combination with other International Standards in the ISO 19901 series (e.g. ISO 19901-1 for wind actions - see 7.6.2, ISO 19901-2 for seismic actions - see 7.7) and ISO 19902 for fatigue design (see 6.7).
This document is applicable to the following:
— topsides of fixed offshore structures;
— discrete structural units placed on the hull structures of floating offshore structures and mobile offshore units;
— topsides of arctic offshore structures, excluding winterization (see ISO 19906).
If any part of the topsides structure forms part of the primary structure of the overall structural system which resists global platform actions, the requirements of this document are supplemented with applicable requirements in ISO 19902, ISO 19903, ISO 19904-1, ISO 19905-1, ISO 19905-3 and ISO 19906.
For those parts of floating offshore structures and mobile offshore units that are chosen to be governed by the rules of a recognized classification society, the corresponding class rules supersede the associated requirements of this document.
This document also addresses prevention, control and assessment of fire, explosions and other accidental events.
The fire and explosion provisions of this document can be applied to those parts of the hulls of floating structures and mobile offshore units that contain hydrocarbon processing, piping or storage.
NOTE Requirements for structural integrity management are presented in ISO 19901-9.
This document applies to structural components including the following:
— primary and secondary structure in decks, module support frames and modules;
— flare structures;
— crane pedestal and other crane support arrangements;
— helicopter landing decks (helidecks);
— permanent bridges between separate offshore structures;
— masts, towers and booms on offshore structures.
This document provides requirements for selecting and using a national building standard with a correspondence factor for determining the resistance of rolled and welded non-circular prismatic components and their connections.
Erdöl- und Erdgasindustrie - Spezielle Anforderungen an Offshore-Anlagen - Teil 3: Topsides structure (ISO 19901-3:2024)
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone - Exigences spécifiques relatives aux structures en mer - Partie 3: Structures Top Sides (ISO 19901-3:2024)
Le présent document fournit des exigences, des recommandations et des informations concernant la conception et la fabrication de la structure Top Sides pour les structures en mer, y compris les conditions de service, avant service et après service.
Les actions s'exerçant sur la structure Top Sides et les effets des actions sur les éléments de structure sont issus du présent document, associé si nécessaire à d'autres Normes internationales de la série ISO 19901 (par exemple, l'ISO 19901-1 pour les actions du vent – voir 7.6.2, l'ISO 19901-2 pour les actions sismiques – voir 7.7) et à l'ISO 19902 pour la conception relative à la fatigue (voir 6.7).
Le présent document s'applique aux éléments suivants:
— aux structures Top Sides pour les structures fixes en mer;
— aux unités structurales individuelles placées sur les structures de coque pour les structures flottantes et d'unités mobiles en mer;
— aux structures Top Sides des structures en mer dans les régions arctiques, à l'exception de l'hivérisation (voir l'ISO 19906).
Si une partie quelconque des structures Top Sides fait partie intégrante de la structure principale du système structural global qui résiste aux actions globales de la plateforme, les exigences du présent document sont complétées par les exigences applicables des normes ISO 19902, ISO 19903, ISO 19904-1, ISO 19905-1, ISO 19905-3 et ISO 19906.
Pour les parties de structures en mer flottantes et d'unités mobiles en mer choisies pour être régies par les règles d'une société de classification reconnue, les règles de classe correspondantes remplacent les exigences associées du présent document.
Le présent document couvre également la prévention, le contrôle et l'évaluation des incendies, des explosions et autres événements accidentels.
Les dispositions relatives aux incendies et explosions du présent document peuvent cependant être appliquées aux parties des coques de structures flottantes et d'unités mobiles en mer qui contiennent des installations de traitement, de tuyauterie ou de stockage d'hydrocarbures.
NOTE Les exigences relatives à la gestion de l'intégrité structurelle sont présentées dans l'ISO 19901-9.
Le présent document s'applique aux éléments de structure, notamment les suivants:
— les structures primaire et secondaire des ponts, des châssis de support de module et des modules;
— les structures de torche;
— les socles de grue et autres dispositifs de support de grue;
— les plates-formes d'appontage d'hélicoptère (héliponts);
— les passerelles permanentes entre des structures en mer séparées;
— les mâts, les tours et les flèches des structures en mer.
Le présent document fournit des exigences pour la sélection et l'utilisation d'une norme nationale de construction avec un facteur de correspondance pour la détermination de la résistance des éléments prismatiques non circulaires laminés et soudés et de leurs raccordements.
Naftna in plinska industrija, vključno z nizkoogljično energijo - Posebne zahteve za naftne ploščadi - 3. del: Strukture na palubi (ISO 19901-3:2024)
Ta dokument vsebuje zahteve, napotke in informacije za načrtovanje oziroma izdelavo struktur
na palubi konstrukcij naftnih ploščadi, vključno s pogoji, ki veljajo med, pred in po storitvi.
Ukrepi na strukturah na palubi in učinki ukrepov v strukturnih komponentah temeljijo na tem
dokumentu, kjer je to potrebno v kombinaciji z drugimi mednarodnimi standardi iz skupine standardov ISO 19901 (npr.
ISO 19901-1 za vplive vetra – glej točko 7.6.2 standarda ISO 19901-2 za potresne vplive – glej točko 7.7) in standarda ISO 19902 za dinamične obremenitve (glej točko 6.7).
Ta dokument se uporablja za naslednje izdelke:
– strukture na palubi naftnih ploščadi;
– ločene strukturne enote na trupu plavajočih struktur in mobilnih enot naftnih ploščadi;
– strukture na palubi naftnih ploščadi v arktičnih območjih, brez zimskih razmer (glej standard 19906).
Če je kateri koli del struktur na palubi del primarne strukture splošnega konstrukcijskega sistema,
ki nasprotuje ukrepom globalne platforme, se zahteve iz tega dokumenta dopolnijo z veljavnimi zahtevami iz standardov ISO 19902, ISO 19903, ISO 19904-1, ISO 19905-1, ISO 19905-3 in ISO 19906.
Za dele plavajočih struktur in mobilnih enot naftnih ploščadi, ki so izbrani, da jih urejajo
pravila priznanega klasifikacijskega zavoda, pravila o zadevnem razredu nadomestijo povezane zahteve iz tega standarda.
Ta dokument prav tako obravnava preprečevanje, nadzor in oceno požara, eksplozij in drugih nezgodnih dogodkov.
Določila za primer požara in eksplozije v tem dokumentu je mogoče uporabiti za tiste dele trupa plavajočih
struktur in premičnih enot naftnih ploščadi, ki vključujejo predelavo ogljikovodika, cevi in shranjevanje.
OPOMBA: Zahteve za upravljanje strukturne celovitosti so predstavljene v standardu ISO 19901-9.
Ta dokument se uporablja za strukturne komponente, kar med drugim vključuje:
– primarne in sekundarne strukture na krovih, podporni okviri modulov in moduli;
– bakle;
– podnožje žerjava in drugi podporni elementi žerjava;
– pristajališča za helikopter;
– stalni mostovi med ločenimi naftnimi ploščadmi;
– stebri, stolpi in drogovi naftnih ploščadi.
Ta dokument podaja naslednje zahteve za izbiro in uporabo nacionalnega gradbenega standarda z
ustreznim faktorjem za določanje odpornosti valjanih in varjenih nekrožnih prizmatičnih
komponent in njihovih spojev.
General Information
- Status
- Published
- Public Enquiry End Date
- 24-Oct-2022
- Publication Date
- 28-Jan-2024
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 24-Jan-2024
- Due Date
- 30-Mar-2024
- Completion Date
- 29-Jan-2024
Relations
- Effective Date
- 19-Jan-2023
Overview
EN ISO 19901-3:2024 - Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 3: Topsides structure (ISO 19901-3:2024) is a CEN-endorsed international standard that gives requirements, guidance and information for the design and fabrication of topsides structures for offshore platforms. It covers pre‑service, in‑service and post‑service conditions and addresses actions on topsides and the resulting action effects in structural components. The 2024 edition supersedes EN ISO 19901-3:2014.
This standard applies to:
- Topsides of fixed offshore structures
- Discrete structural units on hulls of floating offshore structures and mobile offshore units
- Arctic topsides (excluding winterization; see ISO 19906)
- Specific structural components such as decks, module support frames, flare structures, crane pedestals, helidecks, permanent bridges, masts, towers and booms
It also includes provisions for prevention, control and assessment of fire, explosions and accidental events, and guidance for parts of hulls containing hydrocarbon processing, piping or storage.
Key Topics and Requirements
- Design requirements: serviceability, strength, fatigue, robustness and ductility, material selection, structural interfaces and confirmation of execution.
- Actions & analysis methods: in‑service, fabrication/loadout/transportation/installation actions, extreme and accidental events, vortex‑induced vibrations (VIV), indirect actions and action factors.
- Environmental loads: metocean (waves, currents), ice actions, wind (reference to ISO 19901‑1), seismic actions (reference to ISO 19901‑2).
- Fatigue design: coordination with ISO 19902 for fatigue requirements.
- Corrosion control and inspection considerations for fabrication and maintenance.
- Decommissioning: requirements for removal, disposal and structural releases; lifting appurtenances and heavy-lift operations.
- Use of national standards: selection and correspondence factors for determining resistance of rolled and welded non‑circular prismatic components; classification society rules may supersede where applicable.
- Fire & explosion: provisions applicable to topsides and relevant hull compartments.
Applications and Who Uses It
- Offshore structural and mechanical engineers designing topsides and modules
- Fabricators, module manufacturers and construction contractors
- Asset owners/operators and integrity/safety engineers managing topside lifecycle
- Classification societies, surveyors and regulatory authorities for compliance checks
- Project managers responsible for loadout, transport, installation and decommissioning
Related Standards
- ISO 19901‑1 (Wind actions)
- ISO 19901‑2 (Seismic actions)
- ISO 19902 (Fatigue and fixed platforms)
- ISO 19903, ISO 19904‑1, ISO 19905‑1, ISO 19905‑3, ISO 19906 (where topsides form part of primary global structural system)
- ISO 19901‑9 (Structural integrity management)
Keywords: EN ISO 19901-3:2024, topsides structure, offshore structures, topsides design, fatigue design, metocean, seismic, corrosion control, fire and explosion, offshore topsides standards.
Frequently Asked Questions
SIST EN ISO 19901-3:2024 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 3: Topsides structure (ISO 19901-3:2024)". This standard covers: This document provides requirements, guidance and information for the design and fabrication of topsides structure for offshore structures, including in-service, pre-service and post-service conditions. The actions on topsides structure and the action effects in structural components are derived from this document, where necessary in combination with other International Standards in the ISO 19901 series (e.g. ISO 19901-1 for wind actions - see 7.6.2, ISO 19901-2 for seismic actions - see 7.7) and ISO 19902 for fatigue design (see 6.7). This document is applicable to the following: — topsides of fixed offshore structures; — discrete structural units placed on the hull structures of floating offshore structures and mobile offshore units; — topsides of arctic offshore structures, excluding winterization (see ISO 19906). If any part of the topsides structure forms part of the primary structure of the overall structural system which resists global platform actions, the requirements of this document are supplemented with applicable requirements in ISO 19902, ISO 19903, ISO 19904-1, ISO 19905-1, ISO 19905-3 and ISO 19906. For those parts of floating offshore structures and mobile offshore units that are chosen to be governed by the rules of a recognized classification society, the corresponding class rules supersede the associated requirements of this document. This document also addresses prevention, control and assessment of fire, explosions and other accidental events. The fire and explosion provisions of this document can be applied to those parts of the hulls of floating structures and mobile offshore units that contain hydrocarbon processing, piping or storage. NOTE Requirements for structural integrity management are presented in ISO 19901-9. This document applies to structural components including the following: — primary and secondary structure in decks, module support frames and modules; — flare structures; — crane pedestal and other crane support arrangements; — helicopter landing decks (helidecks); — permanent bridges between separate offshore structures; — masts, towers and booms on offshore structures. This document provides requirements for selecting and using a national building standard with a correspondence factor for determining the resistance of rolled and welded non-circular prismatic components and their connections.
This document provides requirements, guidance and information for the design and fabrication of topsides structure for offshore structures, including in-service, pre-service and post-service conditions. The actions on topsides structure and the action effects in structural components are derived from this document, where necessary in combination with other International Standards in the ISO 19901 series (e.g. ISO 19901-1 for wind actions - see 7.6.2, ISO 19901-2 for seismic actions - see 7.7) and ISO 19902 for fatigue design (see 6.7). This document is applicable to the following: — topsides of fixed offshore structures; — discrete structural units placed on the hull structures of floating offshore structures and mobile offshore units; — topsides of arctic offshore structures, excluding winterization (see ISO 19906). If any part of the topsides structure forms part of the primary structure of the overall structural system which resists global platform actions, the requirements of this document are supplemented with applicable requirements in ISO 19902, ISO 19903, ISO 19904-1, ISO 19905-1, ISO 19905-3 and ISO 19906. For those parts of floating offshore structures and mobile offshore units that are chosen to be governed by the rules of a recognized classification society, the corresponding class rules supersede the associated requirements of this document. This document also addresses prevention, control and assessment of fire, explosions and other accidental events. The fire and explosion provisions of this document can be applied to those parts of the hulls of floating structures and mobile offshore units that contain hydrocarbon processing, piping or storage. NOTE Requirements for structural integrity management are presented in ISO 19901-9. This document applies to structural components including the following: — primary and secondary structure in decks, module support frames and modules; — flare structures; — crane pedestal and other crane support arrangements; — helicopter landing decks (helidecks); — permanent bridges between separate offshore structures; — masts, towers and booms on offshore structures. This document provides requirements for selecting and using a national building standard with a correspondence factor for determining the resistance of rolled and welded non-circular prismatic components and their connections.
SIST EN ISO 19901-3:2024 is classified under the following ICS (International Classification for Standards) categories: 75.180.10 - Exploratory, drilling and extraction equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 19901-3:2024 has the following relationships with other standards: It is inter standard links to SIST EN ISO 19901-3:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN ISO 19901-3:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2024
Naftna in plinska industrija, vključno z nizkoogljično energijo - Posebne zahteve za
naftne ploščadi - 3. del: Strukture na palubi (ISO 19901-3:2024)
Oil and gas industries including lower carbon energy - Specific requirements for offshore
structures - Part 3: Topsides structure (ISO 19901-3:2024)
Erdöl- und Erdgasindustrie - Spezielle Anforderungen an Offshore-Anlagen - Teil 3:
Topsides structure (ISO 19901-3:2024)
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone -
Exigences spécifiques relatives aux structures en mer - Partie 3: Structures Top Sides
(ISO 19901-3:2024)
Ta slovenski standard je istoveten z: EN ISO 19901-3:2024
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 19901-3
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2024
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 19901-3:2014
English Version
Oil and gas industries including lower carbon energy -
Specific requirements for offshore structures - Part 3:
Topsides structure (ISO 19901-3:2024)
Industries du pétrole et du gaz, y compris les énergies Erdöl- und Erdgasindustrie - Spezielle Anforderungen
à faible teneur en carbone - Exigences spécifiques an Offshore-Anlagen - Teil 3: Topsides structure (ISO
relatives aux structures en mer - Partie 3: Structures 19901-3:2024)
Top Sides (ISO 19901-3:2024)
This European Standard was approved by CEN on 9 December 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19901-3:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 19901-3:2024) has been prepared by Technical Committee ISO/TC 67 "Oil and
gas industries including lower carbon energy" in collaboration with Technical Committee CEN/TC 12
“Oil and gas industries including lower carbon energy” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2024, and conflicting national standards shall be
withdrawn at the latest by July 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19901-3:2014.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 19901-3:2024 has been approved by CEN as EN ISO 19901-3:2024 without any
modification.
International
Standard
ISO 19901-3
Third edition
Oil and gas industries including
2024-01
lower carbon energy — Specific
requirements for offshore
structures —
Part 3:
Topsides structure
Industries du pétrole et du gaz, y compris les énergies à faible
teneur en carbone — Exigences spécifiques relatives aux
structures en mer —
Partie 3: Structures Top Sides
Reference number
ISO 19901-3:2024(en) © ISO 2024
ISO 19901-3:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 19901-3:2024(en)
Contents Page
Foreword .vii
Introduction .x
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Symbols and abbreviated terms. 5
4.1 Symbols .5
4.2 Abbreviated terms .6
5 Overall requirements . 7
5.1 Conceptual design . . .7
5.2 Codes and standards .7
5.2.1 Limit states and allowable stress philosophies .7
5.2.2 Use of national building standards .8
5.3 Deck elevation .8
5.4 Exposure level .8
5.5 Operational requirements .9
5.5.1 Functional requirements .9
5.5.2 Spillage and containment .9
5.6 Design physical environmental conditions .9
5.7 Critical structure .9
5.8 Assessment of existing topsides structure .10
5.9 Reuse of topsides structure .10
5.10 Repairs, modifications and refurbishment .10
6 Design requirements .11
6.1 General .11
6.2 Design/assessment situations .11
6.3 Material selection . .11
6.4 Structural interfaces .11
6.5 Design for serviceability .11
6.5.1 Serviceability limits .11
6.5.2 Vibrations . 12
6.5.3 Deflections . 13
6.6 Design for strength .14
6.7 Design for fatigue .14
6.8 Robustness .14
6.8.1 General .14
6.8.2 Ductility .14
6.9 Confirmation of execution of design requirements . 15
6.10 Corrosion control . 15
6.11 Design for fabrication and inspection .16
6.12 Design for loadout, transportation and installation .16
6.13 Design for structural integrity management .17
6.14 Design for decommissioning, removal and disposal .17
6.14.1 General .17
6.14.2 Structural releases .17
6.14.3 Lifting appurtenances .17
6.14.4 Heavy lift and set-down operations .17
7 Actions and analysis methods .18
7.1 General .18
7.2 In-service actions .19
7.3 Action factors . 20
7.3.1 Design actions for operational design/assessment situations in still water . 20
iii
ISO 19901-3:2024(en)
7.3.2 Design actions for operational design/assessment situations with operating
environmental actions . 20
7.3.3 Design actions for extreme design/assessment situations .21
7.4 Vortex-induced vibrations .21
7.5 Indirect actions and resulting forces (action effects) .21
7.6 Metocean and ice actions . 22
7.6.1 Wave, current and ice actions . 22
7.6.2 Wind actions . 23
7.6.3 Cold regions effects .24
7.7 Seismic actions .24
7.7.1 General .24
7.7.2 Minimum lateral acceleration .24
7.7.3 Equipment and appurtenances .24
7.8 Actions during fabrication, loadout, transportation, and installation . 25
7.9 Actions arising from accidental events . 25
7.9.1 General . 25
7.9.2 Structural design for fire hazard .27
7.9.3 Structural design for explosion hazard . 28
7.9.4 Explosion and fire interaction .32
7.9.5 Cryogenic spill . 33
7.9.6 Actions due to vessel collision . 33
7.9.7 Actions due to dropped and swinging objects and projectiles . 33
7.9.8 Actions due to loss of buoyancy . 33
7.9.9 Actions due to topsides acceleration . 34
7.10 Other actions . 34
7.10.1 Drilling . 34
7.10.2 Conductors . 35
7.10.3 Risers . 36
7.10.4 Caissons . 36
7.10.5 Maintenance, mechanical handling and lifting aids . 36
7.10.6 Bridge supports . 36
8 Strength and resistance of structural components.37
8.1 Correspondence factor K . .37
c
8.2 Design of cylindrical tubular sections .37
8.3 Design of non-cylindrical sections . . .37
8.3.1 Rolled and welded non-circular prismatic members.37
8.3.2 Plate girder . 38
8.3.3 Box girder . 38
8.3.4 Stiffened plate components and stressed skin structures . 38
8.4 Connections . 39
8.4.1 General . 39
8.4.2 Restraint and shrinkage . 39
8.4.3 Bolted connections . 39
8.5 Castings and forgings .43
8.6 Design for structural stability .43
9 Limit state verification .44
9.1 Limit state verification approach . 44
9.2 Limit state verification for fire and explosion events .45
9.3 Approaches for limit state verification for fire and explosion events .45
9.4 Risk and risk targets . 46
9.5 Limit state verification for fire and explosion events by semi-probabilistic approach . 48
9.5.1 DL limit state verification. 48
9.5.2 NC limit state verification . 48
9.5.3 Representative values of accidental actions . 49
10 Structural systems . .49
10.1 Topsides design . 49
10.1.1 General . 49
iv
ISO 19901-3:2024(en)
10.1.2 Topsides on concrete substructures . 49
10.1.3 Topsides on floating structures . 50
10.1.4 Equipment supports . 50
10.2 Topsides structure design models . 50
10.2.1 General . 50
10.2.2 Substructure model for topsides design .51
10.2.3 Topsides model for topsides design .51
10.2.4 Modelling for design of equipment and piping supports .52
10.3 Substructure interface .52
10.3.1 Responsibility .52
10.3.2 Strength design .52
10.3.3 Fatigue design .52
10.4 Flare towers, booms, vents and similar structure .52
10.5 Helicopter landing facilities (helidecks) . 53
10.5.1 General . 53
10.5.2 Construction. 54
10.5.3 Helideck design verification . 54
10.5.4 Reassessment of existing helidecks . 58
10.6 Crane support structure and crane boom rest .59
10.6.1 General .59
10.6.2 Design requirements .59
10.6.3 Static design. 60
10.6.4 Fatigue design .62
10.6.5 Seismic/Earthquake design . 63
10.6.6 Dynamic design . 63
10.6.7 Fabrication . 64
10.6.8 Crane boom rest design . 64
10.7 Derrick equipment set . 64
10.8 Bridges . 65
10.9 Bridge bearings . 65
10.10 Anti-vibration mountings for modules and major equipment skids . 66
10.11 System interface assumptions . . 66
10.12 Fire protection systems. 66
10.13 Penetrations .67
10.14 Difficult-to-inspect areas .67
10.15 Drainage .67
10.16 Strength reduction due to heat .67
10.17 Walkways, laydown areas and equipment maintenance .67
10.18 Muster areas and lifeboat stations . 68
11 Materials .68
11.1 General . 68
11.2 Carbon steel . 69
11.3 Stainless steel .74
11.3.1 General .74
11.3.2 Types of stainless steel .74
11.3.3 Material properties . 75
11.4 Aluminium alloys . 75
11.4.1 General . 75
11.4.2 Types of aluminium . 75
11.4.3 Material properties . 75
11.4.4 Thermite sparking .76
11.5 Fibre-reinforced polymers (FRP) .76
11.6 Timber .76
12 Fabrication, quality control, quality assurance and documentation .77
12.1 Assembly . 77
12.1.1 General . 77
12.1.2 Grating . 77
12.1.3 Landing and stairways . 77
v
ISO 19901-3:2024(en)
12.1.4 Temporary attachments . 77
12.2 Welding . . 77
12.3 Fabrication inspection . 78
12.4 Quality control, quality assurance and documentation . 78
12.5 Corrosion protection . 78
12.5.1 Coatings . 78
12.5.2 Under deck areas . 78
12.5.3 Dissimilar materials . 78
12.6 In-service inspection, monitoring and maintenance of corrosion control . 79
13 Loadout, transportation and installation .79
14 In-service inspection and structural integrity management .79
14.1 General . 79
14.2 Requirements applying to topsides structures . 79
14.2.1 Corrosion protection systems . 79
14.2.2 Critical structures . 79
14.2.3 Control of hot work (e.g. welding and cutting) . 79
14.2.4 Accidental events and incidents . 80
14.2.5 Change control . 80
Annex A (informative) Additional information and guidance .81
Annex B (informative) Example calculation of correspondence factor .141
Bibliography .147
vi
ISO 19901-3:2024(en)
Foreword
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
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in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
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La norme SIST EN ISO 19901-3:2024 établit des exigences, des conseils et des informations sur la conception et la fabrication des structures de superstructures pour des structures offshore, englobant à la fois les conditions de préservice, de service et de postsservice. Son champ d'application est essentiel pour les industries pétrolières et gazières, y compris pour celles orientées vers une énergie à plus faible émission de carbone. Parmi les forces de cette norme, on retrouve sa capacité à fournir des directives claires pour les structures de superstructures situées sur des plates-formes fixes, ainsi que pour les unités mobiles et flottantes. Elle aborde spécifiquement les exigences des unités structurelles discrètes placées sur la coque des structures flottantes, ce qui est crucial dans un contexte d'innovation technique pour l'exploitation offshore. La norme est également pertinente pour les structures offshore dans les zones arctiques, même si elle exclut la hivernisation, ce qui souligne sa largeur d'application. De plus, la synergie avec d'autres normes internationales de la série ISO 19901 assure une approche intégrée pour évaluer les actions telles que celles dues au vent ou aux séismes, renforçant ainsi la fiabilité de la conception des structures. Un autre aspect fort de cette norme réside dans son traitement des risques liés aux incendies et aux explosions, en offrant des prescriptions que l'on peut appliquer aux parties des coques contenant des installations de traitement d'hydrocarbures. Cela répond à la nécessité croissante d'une gestion proactive des risques dans un environnement offshore complexe. En ce qui concerne les composants structurels, la norme inclus plusieurs éléments essentiels tels que les structures primaires et secondaires présentes dans les ponts, les cadres de support de modules, et même les infrastructures comme les paquebots de secours, les dick-helis et les passerelles permanentes. Cela témoigne de l'étendue des structures couvertes et de leur importance dans le cadre des designs offshore. En outre, la norme permet d’harmoniser le choix et l’utilisation d’une norme nationale de construction avec un facteur de correspondance, permettant ainsi de déterminer la résistance des composants prismatiques non circulaires et de leurs connexions. Cela favorise une standardisation cruciale dans la fabrication et l'assemblage, garantissant une intégrité structurelle tout au long du cycle de vie des installations offshore. En résumé, la norme SIST EN ISO 19901-3:2024 représente un cadre complet et pertinent pour le développement d'infrastructures offshore, conçu pour répondre aux défis contemporains des industries pétrolières et gazières, tout en prenant en compte les exigences de sécurité et d'intégrité structurelle.
SIST EN ISO 19901-3:2024 is a comprehensive standard that addresses the specific requirements for the design and fabrication of topsides structures for offshore installations, emphasizing the oil and gas industries, including those transitioning to lower carbon energy sources. The standard's scope is robust as it encompasses various critical aspects related to both fixed and floating offshore structures, ensuring that the guidance is relevant across a wide spectrum of applications. One of the key strengths of this document is its detailed attention to applicable conditions for topsides structures, including in-service, pre-service, and post-service scenarios. This multi-faceted approach supports the effective lifecycle management of offshore structures, ensuring that safety and performance are prioritized throughout all stages. Additionally, the inclusion of action effects derived from other related International Standards, such as ISO 19901-1 for wind actions and ISO 19901-2 for seismic actions, further enhances its robustness and applicability in diverse environmental conditions. The document's provision for various structural components, including primary and secondary structures, flare structures, crane pedestal arrangements, and helicopter landing decks, makes it an indispensable resource for professionals in the field. This comprehensiveness ensures that users are well-equipped to tackle the complexities involved in offshore structures' design and maintenance. Moreover, the emphasis on fire and explosion prevention, as well as the assessment of accidental events, underscores the standard's relevance in enhancing safety measures within offshore environments. By addressing the prevention protocols applicable not only to topsides structures but also to compartments that handle hydrocarbons, the document provides a critical framework for mitigating risks associated with offshore operations. Another significant feature of SIST EN ISO 19901-3:2024 is its guidance on selecting and utilizing national building standards while incorporating a correspondence factor. This section is particularly valuable for engineers tasked with determining the resistance of various structural components and their connections, further ensuring compliance with local regulatory frameworks. Overall, the SIST EN ISO 19901-3:2024 standard serves as an essential guide for industry professionals involved in the design and construction of offshore structures, neatly balancing safety, structural integrity, and compliance with international benchmarks. Its detailed provisions and clear connections to other relevant standards solidify its significance in ongoing efforts to ensure safe and effective offshore operations.
Die SIST EN ISO 19901-3:2024 bietet eine umfassende Grundlage für die Anforderungen, Richtlinien und Informationen zur Planung und Herstellung von Topsides-Strukturen für Offshore-Anlagen. Diese Norm ist besonders relevant für die Öl- und Gasindustrie sowie für die Nutzung von niedrigeren Kohlenstoffenergien und stellt sicher, dass die spezifischen Bedürfnisse und Herausforderungen, die mit Offshore-Strukturen verbunden sind, berücksichtigt werden. Ein herausragendes Merkmal dieser Norm ist ihr klar definierter Anwendungsbereich, der nicht nur die Topsides von festen Offshore-Strukturen abdeckt, sondern auch diskrete strukturelle Einheiten, die auf den Rumpf von schwimmenden Offshore-Strukturen und mobilen Offshore-Einheiten platziert sind. Darüber hinaus wird auch der spezifische Kontext arktischer Offshore-Strukturen berücksichtigt, was ihre Vielseitigkeit und Anpassungsfähigkeit an verschiedene Betriebsumgebungen unterstreicht. Ein weiterer bedeutender Stärke der Norm liegt in ihrer Integration mit anderen international anerkannten Standards der ISO 19901-Serie, die verschiedene Wirkkräfte wie Wind- und seismische Einwirkungen berücksichtigen. Diese Verknüpfung ermöglicht es, eine konsistente und umfassende Bewertungsmethodik zu gewährleisten, die auf die spezifischen Bedürfnisse jeder Offshore-Anlage zugeschnitten ist, und garantiert damit die strukturelle Integrität und Sicherheit. Besonders hervorzuheben ist auch die Berücksichtigung von Sicherheitsaspekten in Bezug auf Brand- und Explosionsschutz. Die Norm liefert spezifische Anforderungen und Richtlinien zur Verhinderung, Kontrolle und Bewertung solcher Ereignisse, was entscheidend für die Gewährleistung der Sicherheit in Offshore-Betrieb ist, insbesondere wenn es um die Behandlung, Pipe und Lagerung von Kohlenwasserstoffen geht. Zusätzlich werden Anforderungen an die strukturelle Integrität, einschließlich der primären und sekundären Struktur in Decks, Modulsupportrahmen, Flare-Strukturen, und Kransockel, innerhalb dieses Dokuments behandelt. Dies vermittelt ein umfassendes Bild der notwendigen Sicherheits- und Konstruktionsstandards, die für den Aufbau von Offshore-Strukturen unerlässlich sind. Insgesamt bietet die SIST EN ISO 19901-3:2024 eine entscheidende Grundlage für die Konstruktion sicherer und effektiver Offshore-Strukturen. Ihre Aktualität und Relevanz in der heutigen Energiebranche, gepaart mit den strengen Anforderungen an die Sicherheit und die Handhabung potenzieller Risiken, machen diese Norm zu einem unverzichtbaren Handbuch für Ingenieure und Fachleute der Branche.
SIST EN ISO 19901-3:2024は、オフショア構造物の上部構造に関する設計および製造に必要な要件、ガイダンス、情報を提供する文書です。この標準は、サービス中、サービス前、およびサービス後の条件に関連した上部構造のための具体的な要件をまとめています。特に、ISO 19901シリーズの他の国際標準（例えば、風力荷重に関するISO 19901-1や地震荷重に関するISO 19901-2など）との組み合わせを必要とする場合があるため、幅広い適応性を持つ文書です。 この標準の適応範囲には、固定オフショア構造物の上部構造や、浮体オフショア構造物および移動オフショアユニットの船体構造上に配置される独立した構造ユニットが含まれ、特に北極オフショア構造物の上部構造にも適用されますが、冬季化は除外されています。これにより、厳しい環境条件下での設計にも対応している点が、この標準の強みです。 SIST EN ISO 19901-3には、上部構造が全体的な構造システムの主要構造の一部を形成している場合、その他の関連するISO標準（ISO 19902、ISO 19903、ISO 19904-1、ISO 19905-1、ISO 19905-3、ISO 19906など）の要件と併せて利用されることが求められます。これにより、グローバルプラットフォームの動作に抵抗するための一貫した設計基準が確保されています。 さらに、この文書は火災、爆発およびその他の偶発的事象に対する予防、制御、評価にも触れており、非常に重要な安全性の側面を提供しています。特に、炭化水素処理、配管または貯蔵が行われる浮体構造物や移動オフショアユニットの船体部分の防火および爆発に関する規定は、業界におけるリスク管理の助けとなります。 構造コンポーネントには、デッキ、モジュールサポートフレームおよびモジュール内の主要および副次的構造、フレア構造、クレーンペデスタル、ヘリコプター着陸デッキ（ヘリデッキ）、オフショア構造物の間の永久ブリッジ、さらにはマスト、タワー、ブームが含まれます。このような多様なコンポーネントに対して要件を設定することで、実質的な設計の整合性が維持されます。 コンクリートまたは溶接された非円形断面構成部品とその接続の強度を決定するための国の建築基準の選定と使用に関する要件も含まれており、工学的な精度を求める分野において大きな指針を提供します。このように、SIST EN ISO 19901-3:2024は、オフショア構造物の設計と安全性に関する標準として、非常に関連性が高く、業界での採用が期待される重要な文書です。
SIST EN ISO 19901-3:2024 표준은 해양 구조물의 상부 구조 설계 및 제작에 대한 요구 사항과 지침을 제공하는 문서로, 해양 산업에 필수적인 요소입니다. 이 표준은 환경 변화와 서비스 조건을 고려하여 구조물의 안전성과 신뢰성을 보장하는 데 중점을 두고 있습니다. 특히, 이 문서는 고정형 해양 구조물의 상부 구조뿐만 아니라 부유형 구조물과 이동형 해양 유닛의 하우스 구조에 위치한 개별 구조 유닛에도 적용 가능하여, 다양한 해양 환경에 대한 통합적인 대응을 제공합니다. 이는 ISO 19901 시리즈의 다른 국제 표준(예: ISO 19901-1의 풍력 작용 및 ISO 19901-2의 지진 작용 등)과의 결합을 통해 상부 구조에서 발생할 수 있는 복합적인 작용 효과를 효과적으로 수용한다는 장점을 가지고 있습니다. 이 문서의 강점 중 하나는 화재와 폭발, 기타 사고 사건에 대한 예방 및 위험 관리 방안을 포함하고 있다는 점입니다. 해양 구조물의 안전성을 높이기 위해, 이 표준은 화학물질 처리 및 저장을 포함하는 부유 구조물의 선체 부분에 대한 특별한 요구 사항을 갖추고 있습니다. 또한, 상부 구조의 구조적 무결성을 관리하기 위한 요구 사항이 ISO 19901-9에서 제시되어 있어, 이 표준은 상부 구조의 각 구성 요소에 대해 체계적이고 포괄적인 접근 방식을 제공합니다. 이러한 구체적인 요구 사항은 주 구조와 보조 구조, 선창 및 크레인 기둥 등 다양한 구조 요소를 포함하여, 전체적인 구조 시스템의 내구성과 안전성을 확보하는 데 기여합니다. 종합적으로 SIST EN ISO 19901-3:2024 표준은 해양 산업에서 상부 구조의 설계 및 제작 시 필수적으로 고려해야 할 요소들을 체계적으로 정리하고 있으며, 해양 구조물의 안전성과 효율성을 높이는 데 중요한 역할을 수행합니다.
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