Petroleum and natural gas industries - Concrete offshore structures (ISO 19903:2019)

This document specifies requirements and provides recommendations applicable to fixed, floating and grounded concrete offshore structures for the petroleum and natural gas industries and for structures supporting nationally-important power generation, transmission or distribution facility. This document specifically addresses
— the design, construction, transportation and installation of new structures, including requirements for in-service inspection and possible removal of structures,
— the assessment of structures in service, and
— the assessment of structures for reuse at other locations.
This document is intended to cover the engineering processes needed for the major engineering disciplines to establish a facility for offshore operation.

Erdöl- und Erdgasindustrie - Offshore-Betonkonstruktionen (ISO 19903:2019)

Industries du pétrole et du gaz naturel - Structures en mer en béton (ISO 19903:2019)

Le présent document spécifie les exigences et formule des recommandations concernant les structures en mer en béton fixes, flottantes et échouées pour les industries du pétrole et du gaz naturel. Il s'applique également aux structures d'envergure nationale supportant des installations de production, de transport ou de distribution d'énergie. Le présent document couvre plus particulièrement:
— la conception, la construction, le transport et l'installation de nouvelles structures, ainsi que les exigences concernant l'inspection en service et la possibilité de retrait des structures;
— l'évaluation de structures en service; et
— l'évaluation de structures destinées à être réutilisées sur d'autres sites.
Le présent document est destiné à couvrir les processus d'ingénierie nécessaires aux disciplines d'ingénierie majeures afin d'établir une installation destinée à une utilisation en mer.

Industrija za predelavo nafte in zemeljskega plina - Betonske konstrukcije naftnih ploščadi (ISO 19903:2019)

Ta dokument določa zahteve in podaja priporočila, ki veljajo za pritrjene, plavajoče in utemeljene betonske konstrukcije naftnih ploščadi za industrijo za predelavo nafte in zemeljskega plina ter za konstrukcije nacionalnega pomena, ki podpirajo proizvodnjo, prenos ali distribucijo električne energije. Ta dokument izrecno naslavlja: – projektiranje, konstrukcijo, prevoz in namestitev novih konstrukcij, vključno z zahtevami za pregled med uporabo in morebitno odstranitev konstrukcij; – vrednotenje konstrukcij v uporabi; in – vrednotenje konstrukcij za ponovno uporabo na drugih lokacijah. Ta dokument zajema inženirske procese, potrebne v glavnih inženirskih panogah za vzpostavitev objektov za priobalno delovanje.

General Information

Status
Published
Publication Date
01-Oct-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
02-Oct-2019
Completion Date
02-Oct-2019

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SLOVENSKI STANDARD
SIST EN ISO 19903:2019
01-december-2019
Nadomešča:
SIST EN ISO 19903:2007

Industrija za predelavo nafte in zemeljskega plina - Betonske konstrukcije naftnih

ploščadi (ISO 19903:2019)

Petroleum and natural gas industries - Concrete offshore structures (ISO 19903:2019)

Erdöl- und Erdgasindustrie - Feststehende Offshore-Betonkonstruktionen (ISO
19903:2019)

Industries du pétrole et du gaz naturel - Structures en mer en béton (ISO 19903:2019)

Ta slovenski standard je istoveten z: EN ISO 19903:2019
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
91.080.40 Betonske konstrukcije Concrete structures
SIST EN ISO 19903:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 19903:2019
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SIST EN ISO 19903:2019
EN ISO 19903
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 19903:2006
English Version
Petroleum and natural gas industries - Concrete offshore
structures (ISO 19903:2019)

Industries du pétrole et du gaz naturel - Structures en Erdöl- und Erdgasindustrie - Offshore-

mer en béton (ISO 19903:2019) Betonkonstruktionen (ISO 19903:2019)
This European Standard was approved by CEN on 12 August 2019.

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, Turkey 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

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19903:2019 E

worldwide for CEN national Members.
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SIST EN ISO 19903:2019
EN ISO 19903:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 19903:2019
EN ISO 19903:2019 (E)
European foreword

This document (EN ISO 19903:2019) has been prepared by Technical Committee ISO/TC 67 "Materials,

equipment and offshore structures for petroleum, petrochemical and natural gas industries" in

collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for

petroleum, petrochemical and natural gas industries” 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 April 2020, and conflicting national standards shall be

withdrawn at the latest by April 2020.

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 19903:2006.

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, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 19903:2019 has been approved by CEN as EN ISO 19903:2019 without any modification.

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SIST EN ISO 19903:2019
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SIST EN ISO 19903:2019
INTERNATIONAL ISO
STANDARD 19903
Second edition
2019-08
Petroleum and natural gas
industries — Concrete offshore
structures
Industries du pétrole et du gaz naturel — Structures en mer en béton
Reference number
ISO 19903:2019(E)
ISO 2019
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SIST EN ISO 19903:2019
ISO 19903:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 19903:2019
ISO 19903:2019(E)
Contents Page

Foreword ....................................................................................................................................................................................................................................viii

Introduction ................................................................................................................................................................................................................................ix

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Symbols and abbreviated terms ........................................................................................................................................................... 8

4.1 Symbols ......................................................................................................................................................................................................... 8

4.2 Abbreviated terms ............................................................................................................................................................................10

5 General requirements ..................................................................................................................................................................................10

5.1 General ........................................................................................................................................................................................................10

5.2 Overall planning requirements ..............................................................................................................................................11

5.2.1 General...................................................................................................................................................................................11

5.2.2 Quality system .................................................................................................................................................................11

5.2.3 Qualifications of personnel ..................................................................................................................................11

5.2.4 Documentation ...............................................................................................................................................................11

5.3 Functional requirements .............................................................................................................................................................12

5.3.1 General...................................................................................................................................................................................12

5.3.2 Position on site ...............................................................................................................................................................12

5.3.3 Environmental considerations .........................................................................................................................12

5.3.4 Platform operational requirements .............................................................................................................13

5.4 Structural requirements ..............................................................................................................................................................13

5.4.1 General...................................................................................................................................................................................13

5.4.2 Structural concept requirements ...................................................................................................................13

5.4.3 Materials requirements ..........................................................................................................................................14

5.4.4 Execution requirements .........................................................................................................................................14

5.4.5 Temporary phases requirements ...................................................................................................................14

5.5 Design requirements ......................................................................................................................................................................14

5.5.1 General...................................................................................................................................................................................14

5.5.2 Design actions .................................................................................................................................................................14

5.5.3 Design resistance ..........................................................................................................................................................14

5.5.4 Characteristic values for material strength ...........................................................................................15

5.5.5 Partial factors for structural materials ......................................................................................................15

5.5.6 Design by testing ...........................................................................................................................................................15

6 Action and action effects ...........................................................................................................................................................................16

6.1 General ........................................................................................................................................................................................................16

6.1.1 Classification of actions...........................................................................................................................................16

6.1.2 Determination of action effects ........................................................................................................................16

6.2 Environmental actions ..................................................................................................................................................................17

6.2.1 General...................................................................................................................................................................................17

6.2.2 Wave actions .....................................................................................................................................................................17

6.2.3 Current actions ...............................................................................................................................................................20

6.2.4 Seismic actions ...............................................................................................................................................................21

6.2.5 Ice actions ...........................................................................................................................................................................21

6.3 Other actions..........................................................................................................................................................................................22

6.3.1 Permanent actions.......................................................................................................................................................22

6.3.2 Variable actions ..............................................................................................................................................................22

6.3.3 Actions from imposed deformations ...........................................................................................................22

6.3.4 Accidental actions ........................................................................................................................................................23

6.4 Partial factors for actions ............................................................................................................................................................26

6.5 Combinations of actions ..............................................................................................................................................................27

6.6 Exposure levels ....................................................................................................................................................................................28

7 Structural analyses ..........................................................................................................................................................................................29

© ISO 2019 – All rights reserved iii
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SIST EN ISO 19903:2019
ISO 19903:2019(E)

7.1 General ........................................................................................................................................................................................................29

7.2 General principles .............................................................................................................................................................................29

7.2.1 Planning ................................................................................................................................................................................29

7.2.2 Extent of analyses ........................................................................................................................................................30

7.2.3 Analysis requirements .............................................................................................................................................30

7.2.4 Calculation methods ..................................................................................................................................................31

7.2.5 Verification of analysis results ..........................................................................................................................31

7.2.6 Documentation ...............................................................................................................................................................32

7.3 Physical representation ................................................................................................................................................................32

7.3.1 Geometrical definition .............................................................................................................................................32

7.3.2 Material properties .....................................................................................................................................................33

7.3.3 Soil-structure interaction ......................................................................................................................................34

7.3.4 Other support conditions ......................................................................................................................................34

7.3.5 Actions ...................................................................................................................................................................................35

7.3.6 Mass simulation .............................................................................................................................................................36

7.3.7 Damping ...............................................................................................................................................................................37

7.4 Types of analysis .................................................................................................................................................................................37

7.4.1 Static linear elastic analysis.................................................................................................................................37

7.4.2 Dynamic analysis ..........................................................................................................................................................37

7.4.3 Non-linear analysis .....................................................................................................................................................39

7.4.4 Probabilistic analysis ................................................................................................................................................40

7.4.5 Reliability analysis .......................................................................................................................................................40

7.4.6 Discontinuity region analysis .............................................................................................................................40

7.5 Analysis requirements ...................................................................................................................................................................40

7.5.1 General...................................................................................................................................................................................40

7.5.2 Analysis of construction stages ........................................................................................................................40

7.5.3 Transportation analysis ..........................................................................................................................................41

7.5.4 Installation and deck mating analysis ........................................................................................................41

7.5.5 In-service strength and serviceability analysis ..................................................................................41

7.5.6 Fatigue analysis ..............................................................................................................................................................42

7.5.7 Seismic analysis .............................................................................................................................................................42

7.5.8 Analysis of accidental or abnormal design situations ..................................................................44

8 Concrete works ....................................................................................................................................................................................................45

8.1 Design ..........................................................................................................................................................................................................45

8.1.1 Reference standard for design ..........................................................................................................................45

8.1.2 Design principles for shell members ...........................................................................................................45

8.1.3 Design principles for transverse shear ......................................................................................................45

8.1.4 Design principles for fatigue ...............................................................................................................................45

8.1.5 Design principles for durability .......................................................................................................................46

8.1.6 Design principles for liquid tightness .........................................................................................................46

8.1.7 Design principles for prestressed concrete ...........................................................................................46

8.1.8 Design principles for second order effects .............................................................................................47

8.1.9 Principles for handling water pressure in pores and cracks ..................................................47

8.1.10 Design principles for discontinuity regions ..........................................................................................47

8.1.11 Design principles for imposed deformations .......................................................................................47

8.1.12 Increase in strength of concrete with time ............................................................................................47

8.1.13 Design for fire resistance .......................................................................................................................................47

8.1.14 Design for earthquakes ...........................................................................................................................................47

8.1.15 Design of embedments ............................................................................................................................................48

8.1.16 Treatment of early-age and drying shrinkage effects ...................................................................48

8.1.17 Partial factors for material ...................................................................................................................................48

8.2 Materials requirements ................................................................................................................................................................48

8.2.1 General...................................................................................................................................................................................48

8.2.2 Concrete constituents ...............................................................................................................................................49

8.2.3 Concrete ...................................................................... ..........................................................................................................52

8.2.4 Reinforcement .................................................................................................................................................................54

8.2.5 Prestressing steel .........................................................................................................................................................55

8.2.6 Embedded materials..................................................................................................................................................55

iv © ISO 2019 – All rights reserved
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SIST EN ISO 19903:2019
ISO 19903:2019(E)

8.3 Execution...................................................................................................................................................................................................55

8.3.1 Falsework and formwork ......................................................................................................................................55

8.3.2 Reinforcement .................................................................................................................................................................58

8.3.3 Pre- and post-tensioning........................................................................................................................................59

8.3.4 Concreting ..........................................................................................................................................................................62

8.3.5 Execution with precast concrete elements ............................................................................................66

8.3.6 Embedded components ..........................................................................................................................................68

8.4 Geometrical tolerances .................................................................................................................................................................68

8.4.1 General...................................................................................................................................................................................68

8.4.2 Reference system ..........................................................................................................................................................69

8.4.3 Tolerances of structural members .................................................................................................................69

8.4.4 Cross-sectional tolerances ....................................................................................................................................70

8.4.5 Embedments and penetrations ........................................................................................................................70

8.5 Quality control — Inspection, testing and corrective actions .....................................................................71

8.5.1 General...................................................................................................................................................................................71

8.5.2 Inspection of materials and products .........................................................................................................71

8.5.3 Inspection of execution ...........................................................................................................................................71

9 Foundation design ...........................................................................................................................................................................................74

9.1 General ........................................................................................................................................................................................................74

9.2 Principal elements ............................................................................................................................................................................75

9.3 Marine site investigation .............................................................................................................................................................75

9.3.1 Purpose of investigation ...............
...

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