ISO 19901-3:2024

Oil and gas industries including lower carbon energy — Specific requirements for offshore structures — Part 3: Topsides structure

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.

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

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.

General Information

• Status: Published
• Publication Date: 09-Jan-2024
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: ISO/TC 67/SC 7 - Offshore structures
• Drafting Committee: ISO/TC 67/SC 7 - Offshore structures
• Current Stage: 6060 - International Standard published
• Start Date: 10-Jan-2024
• Due Date: 05-Oct-2023
• Completion Date: 10-Jan-2024

Relations

• Consolidates: ISO 23217 - Injection systems for self-administration by paediatric patients — Requirements and guidelines for design
• Effective Date: 06-Jun-2022
• Revises: ISO 19901-3:2014 - Petroleum and natural gas industries — Specific requirements for offshore structures — Part 3: Topsides structure
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 19901-3
ISO/TC 67/SC 7
Petroleum and natural gas
Secretariat: BSI
industries — Specific requirements
Voting begins on:
2023-09-13 for offshore structures —
Voting terminates on:
Part 3:
2023-11-08
Topsides structure
Industries du pétrole et du gaz naturel — Exigences spécifiques
relatives aux structures en mer —
Partie 3: Structures Top Sides
ISO/CEN PARALLEL PROCESSING
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 19901-3:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 19901-3:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 19901-3
ISO/TC 67/SC 7
Petroleum and natural gas
Secretariat: BSI
industries — Specific requirements
Voting begins on:
for offshore structures —
Voting terminates on:
Part 3:
Topsides structure
Industries du pétrole et du gaz naturel — Exigences spécifiques
relatives aux structures en mer —
Partie 3: Structures Top Sides
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
ISO/CEN PARALLEL PROCESSING
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 19901-3:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 19901-3:2023(E)
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 .
...

ISO/TC 67/SC 7
Date: 2023-05-3008-08
ISO/FDIS 19901-3:2023(E)
ISO/TC 67/SC 7/WG 3
Secretariat: NEN
Petroleum and natural gas industries — Specific requirements for offshore
structures — Part 3: Topsides structure
Industries du pétrole et du gaz naturel — Exigences spécifiques relatives aux structures en
mer — Partie 3: Superstructures

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ISO/FDIS 19901-3:2023(E)
© ISO 20222023
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
iv © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 19901-3:2023(E)
Contents

Foreword . 15
Introduction . 18
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
5.3 Deck elevation .8
5.4 Exposure level .8
5.5 Operational requirements .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 .
...