gb - codres 2007 division 1 - sommaire

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CODRES 2007 DIVISION 1

CODE FOR CONSTRUCTION OF VERTICAL CYLINDRICAL STORAGE TANKS

English translation

SYNDICAT NATIONAL DE LA CHAUDRONNERIE, TOLERIE ET

MAINTENANCE INDUSTRIELLE (SNCT)

39/41, rue Louis Blanc 92400 COURBEVOIE } : 92038 PARIS LA DEFENSE Cdex : 33 (0) 1.47.17.62.66 :

33(0)1.47.17.62.77 @ : [email protected]

CODRES 2007 Division 1

I

Responsibility Resulting from a collective work, this new edition of the CODRES has been prepared with the participation of the participants concerned:

Principals and Purchasers, Manufacturers, Notified Bodies, Technical Centres and Representatives of regulatory Authority. It takes account of the good practice in use in the French enterprises in the field of storage tanks

and of the state of the construction techniques used at the time of drawing-up this Division. However in no case will the publication of this Code engage the responsibility of its author and of the editor,

the Manufacturer being always responsible for the tanks he constructs.

Conformity This Code constitutes an integrated and functional document which the writers have wished to be as homogeneous as possible.

Any User cannot avail himself of the reference to the CODRES if he has not complied with all the provisions applicable to the construction considered.

Thus, referring to separate chapters of the CODRES does not allow a "certficate of conformity to the Code" to be issued.

Revisions The registered Owners of the CODRES are informed of the publication of the updates by means of a document that informs them

about the date of publication and the purchase procedure (Neither automatic sending nor subscription to the updates is provided for). The modifications are indicated : with E: editorial corrections and with T: technical corrections or supplements.

Applicable edition

If compliance with the CODRES is required, the applicable edition is the lastest edition (including updates) existing 6 (six) months before the date of coming into effect of the contract.

Copyright

Any reproduction is prohibited and will result in penal sanctions SNCT Publications is and remains the holder of all the intellectual property rights with respect to the author rights

and the rights on the databases for the CODRES Any reproduction, performance, duplication in any form or by any means, in particular by photocopying, without prior explicit agreement

from SNCT Publications and its entitled beneficiaries, if relevant, would constitute a counterfeiting offence. Any counterfeiting offence is punishable by up to three years imprisonment and a fine of 300 000 (French intellectual property code, see hereafter).

The application of penal sanctions does not constitute an obstacle to civil actions to recover damages. Moreover, the publication of the judgement may be ordered.

Code de la proprit intellectuelle (extraits)

Article L335-2 : Toute dition d'crits, de composition musicale, de dessin, de peinture ou de

toute autre production, imprime ou grave en entier ou en partie, au mpris des lois et rglements relatifs la proprit des auteurs, est une contrefaon et toute

contrefaon est un dlit. La contrefaon en France d'ouvrages publis en France ou l'tranger est punie

de trois ans d'emprisonnement et de 300 000 euros d'amende. Seront punis des mmes peines le dbit, l'exportation et l'importation des ouvrages

contrefaits. Lorsque les dlits prvus par le prsent article ont t commis en bande organise,

les peines sont portes cinq ans d'emprisonnement et 500 000 euros d'amende.

Article L335-3 : Est galement un dlit de contrefaon toute reproduction, reprsentation ou

diffusion, par quelque moyen que ce soit, d'une oeuvre de l'esprit en violation des droits de l'auteur, tels qu'ils sont dfinis et rglements par la loi.

Est galement un dlit de contrefaon la violation de l'un des droits de l'auteur d'un logiciel dfinis l'article L. 122-6.

Intellectual property code (extracts) Article L335-2

Any edition of writings, musical compositions, drawings, paintings or other printed or engraved production made in whole or in part regardless of the laws

and regulations governing the ownership of authors shall constitute an infringement. Any infringement shall constitute an offence.

Infringement in France of works published in France or abroad shall be liable to a three-year imprisonment and a fine of 300 000.

The sale, exportation and importation of infringing works shall be subject to the same penalties.

Where offences provided for by this Article are committed by an organised criminal group, the penalties will be increased

to five-year imprisonment and a fine of 500 000. Article L335-3

Any reproduction, performance, or dissemination of a work of mind by any means whatsoever, in violation with the author's rights

as defined and regulated by law shall also constitute an infringement. The violation of any of the rights of an autor of software as defined in Article

L122-6 shall also constitute an infrifringment..

Resale of the document is forbidden unless explicit written agreement has been obtained from the SNCT.

Enquiries should be addressed to:

SYNDICAT DE LA CHAUDRONNERIE, TUYAUTERIE & MAINTENANCE INDUSTRIELLE 39/41, rue Louis Blanc - 92400 COURBEVOIE

92038 PARIS LA DFENSE CEDEX

Phone Technique : 01-47-17-62-63 Distribution : 01-47-17-62-66 Fax 01-47-17-62-77

[email protected] www.snct.org

Published and distributed by:

Foreword to the Division 1 of the 2007 Edition of the CODRES

On the basis of the works done under the responsibility of Jean GABEN and Jean-Louis TISSOT as regards 1991 edition of the Code, the directing members of the SNCT under the presidency of Yves FIORDA have decided to prepare a new edition of the CODRES, reflecting the expertise and professionalism of the French Manufacturers in the field of storage tanks.

In this new edition, in addition to the necessary updates in particular with respect to materials (incorporation of stainless steels) the Part Design and Calculations has been completely reviewed and enriched. Supplementing the usual calculations methods which are widely recognized internationally, this new edition will in particular enable the tanks to be sized taking account of the seismic risks and the frangibility of the equipment under accidental loading conditions to be ensured.

The aim of the writers was to prepare a document which would be the most complete possible and easy to use and which would group all the design and fabrication rules and synthesize more than 50 years experience of the Manufacturers and Users.

To take account of all the construction and maintenance operations relating to vertical steel tanks intended for liquid storage, the CODRES 2007 will include two Divisions:

Division 1, intended for the construction of new tanks, Division 2, intended for in-service monitoring and repair of existing tanks (in course of

preparation). Reflecting the consensus between the Manufacturers, this new edition of the CODRES will

enable tanks to be constructed and repaired taking the technical and economical aspects into consideration and moreover, taking account of the prime importance attached by the Manufacturers to the work quality and environment and to safety requirements at work.

In addition, to ensure the timelessness of these documents and their regular updates, the SNCT will regularly convene a committee of specialists to answer the questions of the users of these two divisions et prepare their future development.

Frdric Lobinger Michel Belguiral Alain Bonnefoy

President of the Technical Committee of the SNCT

Chairman of the managing committee for

the CODRES

Technical Manager of the SNCT

I

Writers of the Division 1 of the 2007 Edition of the CODRES

Belguiral Michel SECOMOC Chairman of the managing committee for the CODRES

Bonnefoy Alain SNCT Technical Manager

Peyvieux Eric TISSOT Industries

Bonneau Fabien TISSOT Industries

Taffard Yves ENDEL Technical Manager

Thierry Jean Claude ENDEL

Chevalier Alain CETIM

Gaben Jean Consultant

Perraudin Grard SNCT Chairman of the managing committee for the CODAP

Poupet Loc SNCT

Julien Anglade SNCT - Polytech Montpellier

Valle Cindy SNCT

Under the Responsibility of:

Lobinger Frdric AGRIANDRE President of the Technical Committee of the SNCT

And the whole team of the SNCT


II

CODRES2007 Division 1 - Contents Pages

PART G GENERAL 1

SECTION G1 SCOPE OF THE DIVISION 1 OF THE CODRES 2007 1

SECTION G2 FIELD OF APPLICATION 1

G2.1 Design pressures (See GA1.3) 2

G2.2 Design temperatures (See GA1.3) 2

G2.3 Design density 2

G2.4 Filling 2

G2.5 Materials 2

SECTION G3 STRUCTURE OF THE DIVISION 1 OF THE CODRES 2007 3

ANNEX GA1 DEFINITIONS 5

ANNEX GA2 TECHNICAL CONSTRUCTION DATA 11

(to be continued)


III

CODRES2007 Division 1 - Contents (continued) Pages

PART M MATERIALS 51

SECTION M1 CARBON AND CARBON-MANGANESE STEELS 51

M1.1 General 51

M1.2 Plates 51

M1.3 Accessories, structural steel sections, etc. 54

M1.4 Flanges 54

M1.5 Tubes and tubular products 54

M1.6 Welding consumables 55

M1.7 Prevention of the risk of brittle fracture 55

SECTION M2 AUSTENITIC AND AUSTENITIC-FERRITIC STAINLESS STEELS 59

M2.1 General 59

M2.2 Plates 59

M2.3 Accessories, structural steel sections, etc. 63

M2.4 Flanges 63

M2.5 Tubes and tubular products 64

M2.6 Welding consumables 64

ANNEX MA1 REQUIREMENTS RELATING TO STEEL GRADES COMPLYING WITH SPECIFICATIONS OTHER THAN THOSE DEFINED IN PARAGRAPH M1.2.1

65

ANNEX MA2 STEEL GRADES IN ADDITION TO THOSE DEFINED IN SECTIONS M1 AND M2

67

(to be continued)


IV


PART C DESIGN AND CALCULATIONS 101

SECTION C1 GENERAL 101

C1.1 Loads 101

C1.2 Load combinations 102

C1.3 Allowable stresses 103

SECTION C2 TANK BOTTOMS 105

C2.1 General 105

C2.2 Minimum thicknesses 105

C2.3 Design 108

C2.4 Construction details 108

SECTION C3 DESIGN OF THE SHELL 113

C3.1 Minimum nominal thicknesses 113

C3.2 General provisions 113

C3.3 Shell thickness calculation 114

C3.4 Check for shell stability 115

C3.5 Construction details 123

SECTION C4 FIXED ROOFS 125

C4.1 General 125

C4.2 Self-supporting roof without roof framework 125

C4.3 Roof supported by an internal framework 126

C4.4 Roof supported by an external framework or welded onto an internal framework 127

C4.5 Shell-to-roof junction 127

C4.6 Recommendations relating to venting and frangibility 129

C4.7 Internal floating roofs 129

(to be continued)


V


SECTION C5 EXTERNAL FLOATING ROOFS 131

C5.1 General 131

C5.2 Design 132

SECTION C6 ROOF ACCESSORIES AND PREFABRICATED PARTS 137

C6.1 General 137

C6.2 Nozzle, opening and reinforcement arrangements 138

C6.3 Non-flush-type shell nozzles and manholes 139

C6.4 Flush-type shell nozzles and cleanout doors 148

C6.5 Under-bottom nozzle connection 152

C6.6 Draw-off sumps 153

C6.7 Fixed-roof manholes and nozzles 154

C6.8 Stairs, walkways 157

C6.9 Earthing 157

C6.10 Instrumentation 157

SECTION C7 TANK ANCHORAGE 159

C7.1 General 159

C7.2 Anchor attachment 160

C7.3 Allowable tensile strength 160

C7.4 Holding down bolt or holding down strap 160

C7.5 Resistance to uplift during the tests 160

(to be continued)


VI

CODRES2007 Division 1 - Contents (contents) Pages

ANNEX CA1 CHECKING OF STORAGE TANK RESISTANCE AGAINST SEISMIC LOADS

165

ANNEX CA2 FRANGIBILITY OF FIXED-ROOF STORAGE TANKS 175

ANNEX CA3 RECOMMENDATIONS RELATING TO THE FOUNDATIONS FOR STORAGE TANKS

179

ANNEX CA4 RECOMMENDATIONS FOR NON-FULLY SUPPORTED TANKS AND DOUBLE BOTTOMS OF STORAGE TANKS

183

ANNEX CA5 CONSTRUCTION DETAILS FOR STAIRWAY OPENINGS THROUGH MAIN GIRDER

185

ANNEX CA6 Annex not used in this Edition 187

ANNEX CA7 FRAMEWORK 189

ANNEX CA8 RECOMMENDATIONS RELATING TO VENTING OF STORAGE TANKS 197

ANNEX CA9 INTERNAL FLOATING ROOFS 203

(to be continued)


VII


PART F FABRICATION AND ERECTION 251

SECTION F1 SHOP PREFABRICATION 251

F1.1 General 251

F1.2 Receipt and identification of materials 251

F1.3 Handling and storage of materials 251

F1.4 Marking transfer and identification of the parts 251

F1.5 Plate preparation 251

F1.6 Plate forming 252

F1.7 Openings 252

F1.8 Welding 252

F1.9 Surface condition 252

F1.10 Identification marks for mounting 252

F1.11 Packaging and handling operations related to the transportation to the site 253

SECTION F2 ERECTION AND TOLERANCES 255

F2.1 General 255

F2.2 Foundations 255

F2.3 Anchorage 256

F2.4 Handling and storage 256

F2.5 Repair of parts damaged during transportation and handling 256

F2.6 Bottom 256

F2.7 Shell 257

F2.8 Fixed roof 258

F2.9 Openings 258

F2.10 Access 259

F2.11 Internal accessories 259

F2.12 Temporary attachments 259

(to be continued)


VIII


SECTION F3 WELDING PROCEDURE AND WELDER QUALIFICATIONS 261

F3.1 General 261

F3.2 Welding procedure 261

F3.3 Qualification of the welding procedures 262

SECTION F4 WELDING 263

F4.1 General 263

F4.2 Welding sequences 263

F4.3 Bottom welding 263

F4.4 Shell-to-bottom welding 263

F4.5 Shell welding 263

F4.6 Framework welding 263

F4.7 Roof welding 263

F4.8 Temporary welds 263

F4.9 Atmospheric conditions 264

F4.10 Preheating 264

F4.11 Post weld heat treatment 264

ANNEX FA1 RECOMMENDATIONS FOR THE USE OF THE STANDARDS NF EN 287-1 : JUILLET 2004 & NF EN ISO 15614-1 : FVRIER 2005

265

(to be continued)


IX

CODRES2007 Division 1 Contents (continued) Pages

PART I TESTING - HYDROSTATIC TESTS - INSPECTION 301 SECTION I1 TESTING 301

I1.1 General 301

I1.2 Testing type and extent 301

I1.3 Visual examination 306

I1.4 Liquid penetrant testing 313

I1.5 Magnetic particle testing 313

I1.6 Vacuum box testing 313

I1.7 Soap bubble testing 314

I1.8 Radiographic examination 314

I1.9 Ultrasonic examination 319

I1.10 Defect treatment 320

SECTION I2 HYDROSTATIC TESTS 321 I2.1 Hydrostatic test 321

I2.2 Marking and Manufacturer's file 323

SECTION I3 INSPECTION 325 I3.1 General 325

PART IE INTERPRETATIONS AND EXAMPLES 351

SECTION INT INTERPRETATIONS 351

SECTION EXE EXAMPLES 353

PART R REGULATIONS (in french) 401

CODRES 91 (in french)

gb - codres 2007 division 1 - sommaire

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