1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 19905-1:2012Petroleum and natural gasindustries Site-specificassessment of mobile offshoreunitsPart 1: Jack-ups (ISO 19905-1:2012)Copyright European Committee for Stand
2、ardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO19905-1:2012.The UK participation in its preparation was
3、 entrusted to TechnicalCommittee B/525/12, Design of offshore structures.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctappli
4、cation. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 58289 9ICS 75.180.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committ
5、ee on 30 September 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
6、ISO 19905-1 August 2012 ICS 75.180.10 English Version Petroleum and natural gas industries - Site-specific assessment of mobile offshore units - Part 1: Jack-ups (ISO 19905-1:2012)Industries du ptrole et du gaz naturel - valuation spcifique au site dunits mobiles en mer - Partie 1: Plates-formes aut
7、o-lvatrices (ISO 19905-1:2012) Erdl- und Erdgasindustrie - Beurteilung von mobilen Offshore Einheiten bezglich ihres Einsatzgebietes - Teil 1: Hubinseln (ISO 19905-1:2012) This European Standard was approved by CEN on 16 June 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regula
8、tions 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
9、. 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
10、 members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
11、ortugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and b
12、y any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19905-1:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012EN ISO 19905-1:2012
13、(E) 3 Foreword This document (EN ISO 19905-1:2012) 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 structur
14、es for petroleum, petrochemical and natural gas industries” the secretariat of which is held by AFNOR. 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 February 2013, and conflicting national stand
15、ards shall be withdrawn at the latest by February 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC I
16、nternal 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland
17、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19905-1:2012 has been approved by CEN as a EN ISO 19905-1:2012 without any modific
18、ation. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012ISO 19905-1:2012(E) ISO 2012 All rights reserved iiiContents Page Foreword . v Introduction . vii 1 S
19、cope 1 2 Normative references 2 3 Terms and definitions . 2 4 Symbols and abbreviated terms 13 4.1 Symbols 13 4.2 Abbreviated terms . 14 5 Overall considerations 15 5.1 General . 15 5.2 Assessment approach 16 5.3 Selection of limit states 18 5.4 Determination of assessment situations 18 5.5 Exposure
20、 levels . 20 5.6 Analytical tools 23 6 Data to assemble for each site . 24 6.1 Applicability . 24 6.2 Jack-up data . 24 6.3 Site and operational data 24 6.4 Metocean data 24 6.5 Geophysical and geotechnical data 25 6.6 Earthquake data . 26 7 Actions 26 7.1 Applicability . 26 7.2 General . 26 7.3 Met
21、ocean actions 27 7.4 Functional actions . 28 7.5 Displacement dependent effects . 28 7.6 Dynamic effects . 28 7.7 Earthquakes . 28 7.8 Other actions . 28 8 Structural modelling 28 8.1 Applicability . 28 8.2 Overall considerations 28 8.3 Modelling the leg . 29 8.4 Modelling the hull 30 8.5 Modelling
22、the leg-to-hull connection . 30 8.6 Modelling the spudcan and foundation 31 8.7 Mass modelling 32 8.8 Application of actions . 32 9 Foundations . 35 9.1 Applicability . 35 9.2 General . 35 9.3 Geotechnical analysis of independent leg foundations 36 9.4 Other considerations 39 10 Structural response
23、. 41 10.1 Applicability . 41 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012ISO 19905-1:2012(E) iv ISO 2012 All rights reserved10.2 General considerations
24、.41 10.3 Types of analyses and associated methods .41 10.4 Common parameters .42 10.5 Storm analysis .44 10.6 Fatigue analysis .47 10.7 Earthquake analysis 47 10.8 Accidental situations .47 10.9 Alternative analysis methods .48 11 Long-term applications .48 11.1 Applicability 48 11.2 Assessment data
25、 .48 11.3 Special requirements 49 11.4 Survey requirements .50 12 Structural strength.50 12.1 Applicability 50 12.2 Classification of member cross-sections .51 12.3 Section properties of non-circular prismatic members .52 12.4 Effects of axial force on bending moment 53 12.5 Strength of tubular memb
26、ers .53 12.6 Strength of non-circular prismatic members 53 12.7 Assessment of joints .53 13 Acceptance criteria 54 13.1 Applicability 54 13.2 General formulation of the assessment check .55 13.3 Leg strength assessment .55 13.4 Spudcan strength assessment .56 13.5 Holding system strength assessment
27、.56 13.6 Hull elevation assessment 56 13.7 Leg length reserve assessment .56 13.8 Overturning stability assessment 57 13.9 Foundation integrity assessment 57 13.10 Interaction with adjacent infrastructure 58 13.11 Temperatures .59 Annex A (informative) Additional information and guidance .60 Annex B
28、 (normative) Summary of partial action and partial resistance factors . 238 Annex C (informative) Additional information on structural modelling and response analysis 240 Annex D (informative) Foundations Recommendations for the acquisition of site-specific geotechnical data 250 Annex E (informative
29、) Foundations Additional information and alternative approaches 256 Annex F (informative) Informative annex on Clause A.12 Structural strength . 269 Annex G (informative) Contents list for typical site-specific assessment report 283 Annex H (informative) Regional information . 290 Bibliography . 299
30、 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012ISO 19905-1:2012(E) ISO 2012 All rights reserved vForeword ISO (the International Organization for Standard
31、ization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to
32、be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Stand
33、ards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inte
34、rnational Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 19905-
35、1 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 7, Offshore structures. ISO 19905 consists of the following parts, under the general title Petroleum and natural gas industries Site-
36、specific assessment of mobile offshore units: Part 1: Jack-ups Part 2: Jack-ups commentary and detailed sample calculation Technical Report The following part is under preparation: Part 3, dealing with the site-specific assessment of mobile floating units. ISO 19905 is one of a series of Internation
37、al Standards for offshore structures. The full series consists of the following International Standards: ISO 19900, Petroleum and natural gas industries General requirements for offshore structures ISO 19901-1, Petroleum and natural gas industries Specific requirements for offshore structures Part 1
38、: Metocean design and operating considerations ISO 19901-2, Petroleum and natural gas industries Specific requirements for offshore structures Part 2: Seismic design procedures and criteria ISO 19901-3, Petroleum and natural gas industries Specific requirements for offshore structures Part 3: Topsid
39、es structure ISO 19901-4, Petroleum and natural gas industries Specific requirements for offshore structures Part 4: Geotechnical and foundation design considerations ISO 19901-5, Petroleum and natural gas industries Specific requirements for offshore structures Part 5: Weight control during enginee
40、ring and construction ISO 19901-6, Petroleum and natural gas industries Specific requirements for offshore structures Part 6: Marine operations Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license
41、 from IHS-,-,-BS EN ISO 19905-1:2012ISO 19905-1:2012(E) vi ISO 2012 All rights reserved ISO 19901-7, Petroleum and natural gas industries Specific requirements for offshore structures Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units ISO 19901-81), Petroleum a
42、nd natural gas industries Specific requirements for offshore structures Part 8: Marine soils investigations ISO 19902, Petroleum and natural gas industries Fixed steel offshore structures ISO 19903, Petroleum and natural gas industries Fixed concrete offshore structures ISO 19904-1, Petroleum and na
43、tural gas industries Floating offshore structures Part 1: Monohulls, semi-submersibles and spars ISO 19905-1, Petroleum and natural gas industries Site-specific assessment of mobile offshore units Part 1: Jack-ups ISO/TR 19905-2, Petroleum and natural gas industries Site-specific assessment of mobil
44、e offshore units Part 2: Jack-ups commentary and detailed sample calculation ISO 19905-32 ), Petroleum and natural gas industries Site-specific assessment of mobile offshore units Part 3: Floating units ISO 19906, Petroleum and natural gas industries Arctic offshore structures 1) Under preparation.
45、It is also expected that there will be further parts of ISO 19901. 2) Under preparation. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 19905-1:2012ISO 19905-1:2012(E)
46、 ISO 2012 All rights reserved viiIntroduction The series of International Standards applicable to types of offshore structure, ISO 19900 to ISO 19906, addresses design requirements and assessments for all offshore structures used by the petroleum and natural gas industries worldwide. Through their a
47、pplication, the intention is to achieve reliability levels appropriate for manned and unmanned offshore structures, whatever the type of structure and the nature or combination of the materials used. It is important to recognize that structural integrity is an overall concept comprising models for d
48、escribing actions, structural analyses, design or assessment rules, safety elements, workmanship, quality control procedures and national requirements, all of which are mutually dependent. The modification of one aspect of design or assessment in isolation can disturb the balance of reliability inherent in the overall concept or structural system. The implications involved in modifications, therefore, need to be considered in relation to the overall reliability of offshore structural systems. The series of Internatio
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