BS EN 14015-2004 Specification for the design and manufacture of site built vertical cylindrical flat-bottomed above ground welded steel tanks for the storage of liquids at ambient.pdf

1、BRITISH STANDARD BS EN 14015:2004 Incorporating Corrigendum No. 1 Specification for the design and manufacture of site built, vertical, cylindrical, flat-bottomed, above ground, welded, steel tanks for the storage of liquids at ambient temperature and above The European Standard EN 14015:2004 has th

2、e status of a British Standard ICS 23.020.10 Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSIBS EN 14015:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 February 2005 BSI 11 February 2005 ISBN 0 580

3、 45461 4 National foreword This British Standard is the official English language version of EN 14015:2004. It supersedes BS 2654:1989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PVE/15, Storage tanks for the petroleum industry, which has the resp

4、onsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “I

5、nternational Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with

6、a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internatio

7、nal and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 247 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments

8、issued since publication Amd. No. Date Comments 15597 11 February 2005 Insertion of supersession details Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14015 November2004 ICS23.020.10 Englishversion Specificationf

9、orthedesignandmanufactureofsitebuilt, vertical,cylindrical,flatbottomed,aboveground,welded,steel tanksforthestorageofliquidsatambienttemperatureand above Spcificationpourlaconceptionetlafabricationde rservoirsenacier,souds,ariens,fondplat, cylindriques,verticaux,construitsursitedestinsau stockagedes

10、liquideslatempratureambianteou suprieure AuslegungundHerstellungstandortgefertigter, oberirdischer,stehender,zylindrischer,geschweiter FlachbodenStahltanksfrdieLagerungvonFlssigkeiten beiUmgebungstemperaturundhherenTemperaturen ThisEuropeanStandardwasapprovedbyCENon2February2004. CENmembersareboundt

11、ocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuro

12、peanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus

13、,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKO

14、MITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14015:2004:E Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSIEN 14015:2004 (E) 2 Contents page For

15、eword. 11 1 Scope 12 2 Normative references . 13 3 Terms, definitions, symbols and abbreviations 15 3.1 Terms and definitions. 15 3.2 Symbols . 19 3.3 Abbreviations 21 4 Information and requirements to be documented. 22 4.1 Information to be specified by the purchaser 22 4.2 Information to be agreed

16、 between the purchaser and the tank manufacturer. 22 4.3 Information to be supplied by the tank manufacturer. 22 4.4 Information to be supplied by the steel manufacturer 22 4.5 Information to be agreed between the steel manufacturer and the tank manufacturer . 22 4.6 Information to be agreed between

17、 the purchaser and the cover supplier 22 4.7 Information to be agreed between the tank manufacturer and the cover supplier 22 4.8 Information to be supplied by the cover supplier . 22 5 Requirements 22 5.1 Design pressure 22 5.2 Design metal temperature 23 5.2.1 Maximum design metal temperature. 23

18、5.2.2 Minimum design metal temperature . 23 5.3 Design density. 24 5.4 Yield strength 24 6 Materials. 24 6.1 Carbon and carbon manganese steels. 24 6.1.1 Plate materials.24 6.1.2 Structural steel sections 30 6.1.3 Forgings. 30 6.1.4 Pipes. 31 6.1.5 Welding consumables 31 6.1.6 Charpy V-notch impact

19、energy requirements of carbon and carbon manganese steels 31 6.1.7 Mountings 33 6.1.8 Thickness tolerances 33 6.2 Stainless steels . 34 6.2.1 General. 34 6.2.2 Plate materials.36 6.2.3 Structural steel sections 36 6.2.4 Forgings. 36 6.2.5 Pipes. 36 6.2.6 Welding consumables 37 7 Design loads37 7.1 L

20、oads 37 7.2 Load values .38 7.2.1 Liquid induced loads 38 7.2.2 Internal pressure loads. 38 Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSI EN 14015:2004 (E) 3 7.2.3 Thermally induced loads 38 7.2.4 Dead loads . 38 7.2.5 Insulation loads. 38 7.2.6 Live load. 38

21、7.2.7 Concentrated live load 38 7.2.8 Snow loads 38 7.2.9 Rainfall . 39 7.2.10 Wind 39 7.2.11 Seismic loads 39 7.2.12 Loads resulting from connected piping and attachments 39 7.2.13 Foundation settlement loads . 39 7.2.14 Emergency loads 39 7.3 Load combinations . 39 8 Tank bottoms. 40 8.1 General.

22、40 8.2 Materials. 40 8.3 Design 43 8.4 Fabrication. 43 9 Shell design . 45 9.1 Design and test stress 45 9.2 Internal loads. 48 9.3 Wind and vacuum loads. 49 9.3.1 Stiffening rings49 9.3.2 Primary stiffening ring (wind girder) design 51 9.3.3 Secondary stiffening ring (wind girder) design . 51 9.4 S

23、hell plate arrangement . 54 9.5 Shell joints . 54 10 Fixed roof design 54 10.1 Loads 54 10.2 Type of roof . 54 10.3 Roof plating with supporting structure 54 10.4 Roof plating without supporting structure (membrane roofs). 56 10.5 Compression area at the junction of the shell and roof . 56 10.6 Vent

24、ing requirements . 59 10.6.1 General. 59 10.6.2 Scope of venting provided. 59 10.6.3 Venting capacity 59 10.6.4 Accumulation of pressure and vacuum 59 10.7 Floating covers 59 11 Floating roof design 59 12 Tank anchorage. 60 12.1 General. 60 12.2 Anchorage attachment . 60 12.3 Holding down bolt or st

25、rap 60 12.3.1 Allowable tensile stress . 60 12.3.2 Cross-sectional area. 60 12.4 Resistance to uplift during test . 61 13 Mountings 61 13.1 Shell nozzles O/D 80 mm and above. 61 13.2 Shell nozzles less than O/D 80 mm . 71 13.3 Roof nozzles 71 13.4 Studded pad connections 73 13.5 Nozzle loads 73 13.6

26、 Flush type clean-out doors and water draw-off sumps 73 13.6.1 General. 73 13.6.2 Flush type clean-out doors 74 Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSI EN 14015:2004 (E) 4 13.6.3 Water draw-off sumps 74 13.6.4 Combined water draw-off and clean-out sump 7

27、4 13.7 Nozzle welding details 74 13.8 Flange drilling 75 13.9 Post-weld heat treatment of nozzles. 75 13.10 Heating and/or cooling systems 75 13.11 Stairways and walkways 78 13.12 Handrailing 78 13.13 Ladders 79 13.14 Earthing connections . 79 13.15 Permanent attachments . 79 13.16 Temporary attachm

28、ents . 79 14 Insulation . 79 15 Shop fabrication of tank components 79 15.1 General. 79 15.2 Reception and identification of materials. 79 15.3 Handling and storage of materials 80 15.4 Material markings 80 15.5 Plate preparation and tolerances 81 15.6 Preparation of nozzle components . 81 15.7 Plat

29、e forming and tolerances. 81 15.8 Openings 81 15.8.1 Nozzles. 81 15.8.2 Inspection windows 82 15.8.3 Nozzles for mixers 82 15.8.4 Clean-out doors. 82 15.8.5 Reinforcement plates 82 15.8.6 Insert plates . 82 15.9 Welding 82 15.10 Surface condition 83 15.11 Marking for erection purposes 83 15.12 Packi

30、ng, handling and transport to site . 83 16 Site erection and tolerances 84 16.1 General. 84 16.2 Foundations.84 16.2.1 General. 84 16.2.2 Peripheral tolerance 85 16.2.3 Foundation surface tolerance 85 16.3 Anchor points 85 16.4 Handling and storage . 86 16.5 Rectification of parts damaged during tra

31、nsportation and handling 86 16.6 Bottom plates 86 16.7 Shell to bottom, and shell 86 16.7.1 Assembly tolerances of first shell course on flat bottom. 86 16.7.2 Tolerance on shell geometry . 87 16.7.3 Vertical tolerance 88 16.7.4 Tolerances on alignment of plates 88 16.7.5 Tolerances on shape of weld

32、ed joints 88 16.7.6 Primary and secondary stiffening rings (wind girders) 89 16.8 Fixed roofs. 89 16.8.1 General. 89 16.8.2 Support framework . 89 16.8.3 Roof plates. 89 16.8.4 Roof plating and roof structure . 90 16.8.5 Frangible roofs 90 16.9 Nozzles. 90 16.10 External attachments 90 16.11 Interna

33、l attachments. 90 Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSI EN 14015:2004 (E) 5 16.12 Temporary attachments . 90 17 Approval of welding procedures and welders . 91 17.1 General. 91 17.2 Welding procedure approval . 91 17.2.1 General. 91 17.2.2 Welding of t

34、est pieces 91 17.2.3 Examination and testing of test pieces 91 17.3 Welding Procedure Approval Record (WPAR). 92 17.3.1 Preparation 92 17.3.2 Range of approval. 92 17.4 Welders and welding operators approval. 92 17.5 Production control test plates . 92 17.5.1 Horizontal welds 92 17.5.2 Vertical weld

35、s 93 18 Welding 93 18.1 General. 93 18.2 Welding sequences. 93 18.3 Welding of bottoms. 93 18.3.1 Removal of coatings. 93 18.3.2 Annular ring plates . 93 18.3.3 Bottom plates 94 18.4 Welding of shell to bottom. 94 18.5 Welding of shell. 94 18.6 Welding of roof94 18.7 Temporary welds. 94 18.8 Atmosph

36、eric conditions. 94 18.9 Preheating 95 18.10 Post-weld heat treatment . 95 18.11 Repair welding. 96 19 Testing and inspection. 96 19.1 General. 96 19.2 Qualification of NDT personnel . 96 19.3 Test procedures 97 19.4 Type of inspections and examinations. 97 19.4.1 Inspection of materials. 97 19.4.2

37、Examinations of edges to be welded and joint preparations. 97 19.4.3 Visual examination 97 19.4.4 Type and extent of examination and test of welds 98 19.4.5 Additional examinations if imperfections are found. 102 19.5 Vacuum box test . 103 19.6 Penetrant test 104 19.7 Magnetic particle examination.

38、104 19.8 Soap bubble examination 104 19.8.1 Reinforcement plates 104 19.8.2 Fixed roof and roof to shell 104 19.8.3 Shell to bottom with double fillet weld . 105 19.9 Radiographic examination . 105 19.9.1 General procedure 105 19.9.2 Storage of films . 105 19.10 Ultrasonic examination. 105 19.11 Acc

39、eptance criteria. 106 19.11.1 Imperfection acceptance criteria. 106 19.11.2 Acceptable thinning after grinding . 109 19.12 Dimensional check 110 19.13 Hydrostatic and pneumatic tests 110 19.13.1 General. 110 19.13.2 Hydrostatic test liquid level . 110 19.13.3 Pneumatic test pressure 110 Licensed Cop

40、y: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSI EN 14015:2004 (E) 6 19.13.4 Conditions of implementation . 110 19.13.5 Examination during filling 111 19.13.6 Filling 112 19.13.7 Checking and testing of roof (over pressure) 112 19.13.8 Test for tank stability under negative

41、pressure. 113 19.14 Empty checks 113 19.15 Accessories . 113 19.15.1 External accessories 113 19.15.2 Internal accessories 113 20 Documentation and name-plate 114 20.1 Documentation 114 20.2 Name-plate.116 Annex A (normative) Information and requirements to be documented 117 A.1 Information to be su

42、pplied by the purchaser. 117 A.2 Information agreed between the purchaser and the manufacturer . 119 A.3 Information to be supplied by the manufacturer . 120 A.4 Information to be supplied by the steel manufacturer 121 A.5 Information to be agreed between the steel manufacturer and the tank manufact

43、urer . 121 A.6 Information to be agreed between the purchaser and the cover supplier 121 A.7 Information to be agreed between the tank manufacturer and the cover supplier 121 A.8 Information to be supplied by the cover supplier . 121 Annex B (informative) Operational and safety considerations for st

44、orage tanks and storage installations . 122 B.1 General. 122 B.2 Tank type . 122 B.2.1 Stored product 122 B.2.2 Local climatic and geological conditions. 122 B.3 Health, safety and environmental considerations. 123 B.3.1 Containment 123 B.3.2 Fire protection . 123 B.4 Attachments to tanks for safety

45、 or firefighting facilities 123 Annex C (normative) Requirements for floating covers . 124 C.1 General. 124 C.2 Types of floating covers. 125 C.3 Design and construction requirements 128 C.3.1 Design 128 C.3.2 Materials of construction . 130 C.3.3 Cover fittings . 133 C.3.4 Tank fittings. 137 C.4 In

46、stallation . 139 C.4.1 Tank examination 139 C.4.2 Examination and installation of the cover 139 C.4.3 Tests. 140 C.5 Documentation 140 Annex D (normative) Requirements for floating roofs 141 D.1 General. 141 D.2 Roof types 141 D.3 Design 141 D.3.1 General. 141 D.3.2 Buoyancy . 142 D.3.3 Structural d

47、esign. 144 D.3.4 Roof stability under wind load. 144 D.3.5 Pontoon manholes 144 D.3.6 Roof manhole 144 D.3.7 Centering and anti-rotation devices 144 D.3.8 Main roof drains 145 Licensed Copy: Wang Bin, na, Thu Apr 21 03:39:48 BST 2005, Uncontrolled Copy, (c) BSI EN 14015:2004 (E) 7 D.3.9 Emergency dr

48、ains. 145 D.3.10 Drain plugs 145 D.3.11 Vents. 146 D.3.12 Seals. 146 D.3.13 Support legs 146 D.3.14 Gauging device . 147 D.3.15 Rolling ladder 147 D.3.16 Earthing cables . 147 D.3.17 Foam dam 147 D.4 Prefabrication in the workshop . 147 D.5 Marking, packing, handling, transport 148 D.5.1 General. 148 D.5.2 Repair after damage during handling operations 148 D.6 Assembly . 148 D.7 Welding 148 D.7.1 General. 148 D.7.2 Support legs 148 D.7.3 Bulkheads 148 D.8 Inspection and testing 149 D.8.1 Welds 149 D.8.2 Pontoons 149 D.8.3 Checks 149 D.8.4 Dr