1、BSI Standards PublicationGRP tanks and vessels for use above groundPart 3: Design and workmanshipBS EN 13121-3:2016National forewordThis British Standard is the UK implementation of EN 13121-3:2016. Itsupersedes BS 4994:1987 and BS EN 13121-3:2008+A1:2010 which are withdrawn.The UK participation in
2、its preparation was entrusted to TechnicalCommittee PRI/5, UK steering committee for CEN/TC 210 GRP tanks.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are
3、 responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 86096 6ICS 23.020.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the St
4、andards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 13121-3:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13121-3 April 2016 ICS 23.020.10 Supersedes EN 13121-3:2008+A1:2010English Version GRP tanks a
5、nd vessels for use above ground - Part 3: Design and workmanship Rservoirs et rcipients en PRV pour applications hors sol - Partie 3 : Conception et fabrication Oberirdische GFK-Tanks und -Behlter - Teil 3: Auslegung und Herstellung This European Standard was approved by CEN on 10 January 2016. CEN
6、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 appli
7、cation 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 Man
8、agement 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
9、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marn
10、ix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13121-3:2016 EBS EN 13121-3:2016EN 13121-3:2016 (E) 2 Contents Page European foreword . 8 Introduction . 9 1 Scope . 10 2 Normative references . 10 3 Terms
11、 and definitions . 12 4 Symbols and abbreviations . 13 5 Information and requirements to be supplied and documented 16 5.1 General . 16 5.2 Information to be obtained by the manufacturer . 16 5.3 Information to be prepared by the manufacturer 17 5.4 Final documentation . 18 6 Material 18 6.1 General
12、 . 18 6.2 Chemical protective barrier . 18 6.2.1 General . 18 6.2.2 Thermoplastics linings . 18 6.2.3 Resin based linings 18 6.3 Flammability 18 6.4 Electrical resistivity . 19 7 Mechanical properties 19 7.1 General . 19 7.2 Heat deflection temperature 19 7.3 Laminate construction 19 7.4 Laminate th
13、ickness 21 7.5 Laminate properties 21 7.6 Inter-laminar shear strength . 21 7.6.1 Laminate 21 7.6.2 Thermoplastics linings . 21 7.7 Peel strength of laminates . 22 7.8 Pull-off strength of laminates and thermoplastic liner 22 7.9 Selection of physical properties of materials and allowable design fac
14、tors . 22 7.9.1 General . 22 7.9.2 Basic design 22 7.9.3 Advanced design . 23 7.9.4 Design factors 24 7.9.5 Overall design factors K and F 24 8 Determination of design strain and loadings . 27 8.1 General . 27 8.2 Limit design strains . 28 8.2.1 General . 28 8.2.2 Limit resin strain ar28 8.2.3 Limit
15、 strain for laminate or lamina lim. 28 8.2.4 Limit test strain test. 29 8.3 Limit design laminate loadings . 29 8.4 Determination of the mechanical values from laminates 29 BS EN 13121-3:2016EN 13121-3:2016 (E) 3 8.4.1 General . 29 8.4.2 Calculation of laminate values without experimental test data
16、29 8.4.3 Laminate with experimental data 30 8.5 Laminate thickness 30 9 Design . 30 9.1 Introduction 30 9.2 Determination of external loads . 31 9.2.1 Snow loads . 31 9.2.2 Wind loads . 31 9.2.3 Seismic loads 32 9.2.4 Insulation loads . 33 9.2.5 Loads resulting from connections 33 9.2.6 Agitation .
17、34 9.2.7 Pressure due to inadequate venting 34 9.2.8 Personnel loading . 34 9.2.9 Internal stresses in vessels and tanks due temperatures 34 9.3 Verification by the partial factor method 34 9.3.1 General . 34 9.3.2 Dimensioning by using (A5)-factored loads . 40 9.4 Drawings and design calculations 4
18、1 9.5 Design details . 41 9.5.1 Design temperature TS . 41 9.5.2 Pressure . 41 10 Design analysis 42 10.1 Symbols and units . 42 10.2 Vertical vessels or tanks, cylinders under loads (t 0,5 bar. 3.6 internal inspection authority inspector from the manufacturer which is independent from the workshop
19、BS EN 13121-3:2016EN 13121-3:2016 (E) 13 3.7 tank container for the storage of fluids subject only to the fluid hydrostatic head and freely vented to atmosphere, including branches up to the first flanged connection 3.8 laminate resin reinforced with glass fibre 3.9 gel coat thin layer of resin on t
20、he surface of a laminate that may or not be reinforced with a glass or a synthetic fibre tissue 3.10 cure chemical reaction resulting in the polymerized laminate 3.11 post cure application of heat to take the polymerization to a final stage 3.12 maximum allowable pressure PS maximum pressure for whi
21、ch the equipment is designed, as specified by the manufacturer 3.13 differential pressure difference of pressure on both sides of a component 3.14 design pressure pDdesign pressure used in the calculations for a component 3.15 maximum/minimum allowable temperature TS maximum/minimum temperatures for
22、 which the equipment is designed, as specified by the manufacturer 3.16 test temperature temperature at which the pressure test of the equipment is carried out 3.17 test pressure PT pressure to which the tank or vessel is tested 4 Symbols and abbreviations For the purposes of this document, the symb
23、ols and abbreviations common to all clauses and annexes are given in Table 1. All dimensions are given in millimetres. Further symbols are defined in the relevant clauses as required. BS EN 13121-3:2016EN 13121-3:2016 (E) 14 Table 1 Standard symbols and abbreviations Symbol Unit Definition A mm Dist
24、ance a mm Dimension b mm Dimension d mm Diameter D mm Internal diameter of tank, vessel - Difference or additional E N/mm2Modulus of elasticity = Xt % Strain F - Buckling design factor Half the angle at the apex of the cone Support saddle angle g m/s2Gravity m- Partial factor for material property F
25、,i- Partial factor for action hi mm Height of dished end H mm Height of cone I mm4Second moment of area k - Correction factor K - Overall design factor l mm Length L mm Overall length m kg/m2Mass per unit area M Nmm Bending moment u N/mm Unit load = load/width Poissons ratio P N Direct load p N/mm2P
26、ressure Q N Shear load r mm Knuckle radius R mm Radius kg/m3Density of liquid N/mm2Stress = Utand ntt mm Thickness N/mm2Shear stress BS EN 13121-3:2016EN 13121-3:2016 (E) 15 Symbol Unit Definition T C Temperature TS C Design temperature UlamN/mm Unit load for the laminate U N/mm per kg/m2glass Ultim
27、ate tensile unit strength of the laminate (UTUS) V m3Volume x Coordinate in axial direction X N/mm Unit modulus = Load/width x strain XiN/mm per kg/m2glass Unit tensile-modulus of the lamina per kg/m2glass n N/mm Applied unit load Table 2 Abbreviations Abbreviations CSM - Chopped strand mat ECTFE -
28、Ethylene-chlorotrifluoroethylene copolymer FEP - Fluorinated ethylene-propylene copolymer FU - Furane FW - Filament winding HDT C Heat deflection temperature IRHD International rubber hardness ln - Natural logarithm PF - Phenolic PFA - Perfluoro-alkoxy copolymer PP-B - Polypropylene, block polymer P
29、P-H - Polypropylene, homopolymer PP-R - Polypropylene, random polymer PVC-U - Polyvinyl chloride, unplasticized PVDF - Polyvinylidene fluoride UP - Unsaturated polyester VE - Vinyl ester WR - Woven roving CRL - Chemical Resistant Layer, see EN 131212 VL - Veil Layer, see EN 131212 TPL - Thermoplasti
30、cs Liner, see EN 131212 Lam - Laminate OD - Outside Diameter ID - Inside Diameter BS EN 13121-3:2016EN 13121-3:2016 (E) 16 5 Information and requirements to be supplied and documented 5.1 General The manufacturer shall produce a design and fabrication report as detailed in 17.3. This shall be certif
31、ied by the manufacturer and be available for approval by the purchaser and/or inspection authority as appropriate. The design/fabrication report shall be issued to the purchaser and a copy kept by the manufacturer for a minimum of five years. It shall be the manufacturer responsibility to conduct pr
32、oduction tests as specified in Clause 7 and to record the results to permit verification that such tanks/vessels are in compliance with this standard. The tests as specified in Clause 7 and report along with the definitive documented items and requirements specified in this standard shall be satisfi
33、ed before a claim of compliance with this standard can be made and verified. 5.2 Information to be obtained by the manufacturer The following information shall be supplied by the purchaser and shall be fully documented. Both the definitive requirements specified throughout the standard and the docum
34、ented items shall be satisfied before claim of compliance with this standard can be made and verified. a) Process conditions: 1) materials to be handled (names, concentration, relative densities and toxicity) including likely impurities or contaminations; 2) design pressure (or vacuum) including tes
35、t requirements and design temperature; 3) operating pressure (or vacuum) and temperature; 4) mode of operation, e.g. process cycling conditions; 5) any abrasion or erosion problems that may be encountered; b) site conditions: 1) nature of ambient atmosphere including any extremes of temperature; 2)
36、superimposed loads, e.g. wind, snow and associated pipework; 3) loads imposed by personnel during erection and operation; 4) seismic loading; 5) general layout of site; c) special conditions: 1) boiling; 2) vibration due to adjacent plant; 3) agitation details; BS EN 13121-3:2016EN 13121-3:2016 (E)
37、17 4) danger of mechanical impact and damage; 5) loads imposed during transport; 6) finish, e.g. if fire-resisting; d) details of any special or additional test or inspection required and where these shall be carried out; e) exemption to apply a pigmented coating to the vessel before final inspectio
38、n; f) facilities for testing; g) applicable regulations e.g. laws, statutory orders and decrees; h) name of Inspecting Authority, if applicable; i) requirements for packaging, despatch and installation. 5.3 Information to be prepared by the manufacturer The manufacturer shall, before commencing manu
39、facture, prepare calculations, drawings and a construction specification in documented form, which shall be made available as required. This specification document shall include but shall not be limited to the following: Dished ends: Lay-up details, crown radius, inside knuckle radius, torispherical
40、 shape plus minimum thickness. Shell barrel: Lay-up details, thickness, diameter. Flanges (including blind flanges): Type, standard and pressure rating as indicated in Tables 24 to 29 or for non-standard flanges: minimum thickness, drilling, inside and outside diameters, hub dimensions and facing de
41、tails. Gaskets: Type, rating, material, thickness, inside and outside diameters and gasket seating data. Branches, nozzles, drains: The lay-up details, dimensions such as the wall thickness and outside diameter. Also the method of assembly, loads to be specified if applicable; location of openings r
42、elative to each other. Body joints: Lay-up details, wall thickness and length. Reinforcement: Details for nozzles, supports, lifting lugs, etc. Covers, manholes: Lay-up details, dimensions including minimum thickness, drilling size of bolt holes and pitch circle diameter. Conical sections: Lay-up de
43、tails, minimum thickness and straight length of cone, including angle of cone, radius of knuckle to shell (if applicable); diameter at large and small ends of cone. Supports (horizontal vessel): Number of saddles dimensions including baseplate. Foundation details: distance from tangent line of dishe
44、d ends to centre of supports, distance between supports and heights of vessel centre line to support foot baseplate. Supports (vertical vessel): Skirt dimensions including diameter, height, thickness, lay-up details including method of attachment to shell/dished end; if supports are used, number off
45、, thickness of webs, height, etc., base ring diameters, inside and outside, thickness, number and pitch of holding down bolts. Lifting lugs: Number of, thickness, hole size, lifting angle, lug dimensions, location of lugs, overlay details. Flat plates: Lay-up details, length, breadth and thickness o
46、f stiffeners, if fitted, including pitch, number of. Internals: Brackets, tray supports, etc. BS EN 13121-3:2016EN 13121-3:2016 (E) 18 Tolerances: Any special tolerances that are required above those given in Figures 64 to 67. Flat Bases: Requirements for the use of flat bases to be in accordance wi
47、th EN 13121-4. Attachment for ladders /access platforms and other fittings: Details of method of attachment and overlay construction. 5.4 Final documentation The final documentation shall be in accordance with the requirements of Subclause 17.3. 6 Material 6.1 General The materials of construction t
48、o be used for tanks and vessels to this European Standard shall conform to the requirements of EN 13121-1. The recommendations of the raw material suppliers for the usage of their materials shall be followed. Pigments shall not be used except when required for inclusion in the external resin flow co
49、at, or to meet the requirements of 6.3 and 6.4. Limited use of thixotropic agents may be made provided their inclusion does not interfere with visual examination (see Table 32), or the chemical and mechanical properties of the cured resin system as required by EN 13121-2. 6.2 Chemical protective barrier 6.2.1 General The chemical protective barrier shall be selected in accordance with the requirements of EN 13121-2:2003. The chemical barrier construction shall be ignored in any strength, or stability calculation. 6.2.2 Thermop
