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Appendices
Appendix 5 Application notes for the BSH Standard Design - “Minimum requi
rements concerning the constructive design of offshore structures within the
Exclusive Economic Zone (EEZ)”
Notes on the verifications of stability against collapse for support structures of offshore sta
tions and the choice of steel grade
Appendix 5-I Reason and purpose
chapter B2.3 Design phase, sub-chapter B2.3.2 specifies the requirements and necessary
verifications which shall be provided as part of the structural design.
It states that substructures of offshore stations shall be designed and dimensioned uniformly
on the basis of the DIN EN 199x series of European standards. The special features of the de
sign and the operating conditions in the marine environment mean that different, additional
aspects have to be taken into account here, for which the above-mentioned series of stan
dards sometimes does not contain adequate regulations at present.
When the standards are to be used in the EEZ, the following application notes provide corre
sponding, additional or more specific content for the regulations which allow DIN EN 199x (EC
series) to be used throughout the verification procedure. The application notes, therefore, re
present the operational framework for designs and inspections in application procedures. In
particular, the technical construction standards introduced and the Building Rules List are ex
tended with more detail by regulations which, when complied with, obviate the need to apply
for an individual Technical Approval.
These application notes represent a temporary regulation and as such define minimum stan
dards which the project must meet. More stringent requirements in respect of the dimensio
ning and design are sometimes usual and expressly permissible.
The notes relate to the actions, safety margins in general, and the design of steel structures.
Appendix 5-M Normative references
[1] DIN EN 1990 “Eurocode 0: Basis of structural design”
[2 DIN EN 1990/NA: 2010-12: National Annex - Nationally determined parameters - „Euro
code 0: Basis of structural design”
[3] DIN EN 1991:
[4] DIN EN 1991/NA:
[5] DIN EN 1993-1-1:
[6] DIN EN 1993-1-9:
“Eurocode 1: Actions on structures”
National Annex - Nationally determined parameters - “Eurocode 1:
Actions on structures, issue 2010/12”
“Eurocode 3: Design of steel structures - Part 1-1: General rules and
rules for buildings”; issue 12/2010, incl. National Annex
“Eurocode 3: Design of steel structures - Part 1-9: Fatigue”; issue
12/2010, incl. National Annex
[7] DIN EN 1993-1-10: “Eurocode 3: Design of steel structures - Part 1-10: Material tough
ness and through-thickness properties”; issue 12/2010, incl. National
Annex
[8] DIN EN 10025-1 to -4: “Hot rolled products of structural steels - Part 1-4”: issue 11/2004,
German version prEN 10025-1:2011
[9] DIN EN 10204: “Metallic products - Types of inspection documents“; issue 01/2005