1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 15630-3:2010Steel for the reinforcement andprestressing of concrete TestmethodsPart 3: Prestressing steelBS EN ISO 15630-3:2010 BRITISH STANDARDNational forewordThis Br
2、itish Standard is the UK implementation of EN ISO15630-3:2010. It supersedes BS EN ISO 15630-3:2002 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/104, Concrete Reinforcing and Pre-Stressing Steels.A list of organizations represented on this committ
3、ee 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 correctapplication. BSI 2010ISBN 978 0 580 58491 6ICS 77.140.15; 91.080.40Compliance with a British Standard cannot confer immunity from
4、legal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15630-3 October 2010 ICS 77.140.15 Supersedes EN I
5、SO 15630-3:2002English Version Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel (ISO 15630-3:2010) Aciers pour larmature et la prcontrainte du bton - Mthodes dessai - Partie 3: Armatures de prcontrainte (ISO 15630-3:2010) Sthle fr die Bewehrung und
6、 das Vorspannen von Beton -Prfverfahren - Teil 3: Spannsthle (ISO 15630-3:2010) This European Standard was approved by CEN on 14 October 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a na
7、tional standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version i
8、n any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic
9、, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NOR
10、MALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15630-3:2010: EBS EN ISO 15630-3:2010EN ISO 15630-3:2010 (E) 3 Foreword The tex
11、t of ISO 15630-3:2010 has been prepared by Technical Committee ISO/TC 17 “Steel” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15630-3:2010 by Technical Committee ECISS/TC 104 “Concrete reinforcing and prestressing steels” the secretariat of which is h
12、eld by DIN. 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 April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility tha
13、t 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. This document supersedes EN ISO 15630-3:2002. According to the CEN/CENELEC Internal Regulations, the national standards organiz
14、ations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu
15、gal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15630-3:2010 has been approved by CEN as a EN ISO 15630-3:2010 without any modification. BS EN ISO 15630-3:2010ISO 15630-3:2010(E) ISO 2010 All rights reserved iiiContents Page For
16、eword .v Introductionvi 1 Scope1 2 Normative references1 3 Symbols2 4 General provisions concerning test pieces4 5 Tensile test.4 5.1 Test piece .4 5.2 Test equipment 4 5.3 Test procedure.4 5.3.1 General .4 5.3.2 Determination of the modulus of elasticity.5 6 Bend test 5 6.1 Test piece .5 6.2 Test e
17、quipment 6 6.3 Test procedure.6 6.4 Interpretation of test results.6 7 Reverse bend test6 7.1 Test piece .6 7.2 Test equipment 7 7.3 Test procedure.7 8 Isothermal stress relaxation test .7 8.1 Principle of test7 8.2 Test piece .8 8.3 Test equipment 8 8.3.1 Frame8 8.3.2 Force-measuring device .8 8.3.
18、3 Length-measuring device (extensometer)8 8.3.4 Anchoring device 8 8.3.5 Loading device 8 8.4 Test procedure.8 8.4.1 Provisions concerning the test piece8 8.4.2 Application of force.9 8.4.3 Initial force .9 8.4.4 Force during the test.10 8.4.5 Maintenance of strain10 8.4.6 Temperature.10 8.4.7 Frequ
19、ency of force recording 10 8.4.8 Frequency of strain recording .10 8.4.9 Duration of the test10 9 Axial force fatigue test11 9.1 Principle of test11 9.2 Test piece .11 9.3 Test equipment 11 9.4 Test procedure.12 9.4.1 Provisions concerning the test piece12 9.4.2 Stability of force and frequency.12 B
20、S EN ISO 15630-3:2010ISO 15630-3:2010(E) iv ISO 2010 All rights reserved9.4.3 Counting of force cycles.12 9.4.4 Frequency.12 9.4.5 Temperature .12 9.4.6 Validity of the test12 10 Stress corrosion test in a solution of thiocyanate .12 10.1 Principle of test12 10.2 Sample and test piece .12 10.3 Test
21、equipment 13 10.3.1 Frame 13 10.3.2 Force-measuring device .13 10.3.3 Time-measuring device.13 10.3.4 Cell containing the test solution 13 10.3.5 Test solution.13 10.4 Test procedure.14 10.4.1 Provisions concerning the test pieces14 10.4.2 Application and maintenance of force.14 10.4.3 Filling of th
22、e cell.14 10.4.4 Temperature during the test .14 10.4.5 Termination of the test 14 10.4.6 Determination of median lifetime to fracture (ft ).15 11 Deflected tensile test.15 11.1 Principle of test15 11.2 Sample and test piece .15 11.3 Test equipment 15 11.3.1 General description .15 11.3.2 Dimensions
23、.15 11.3.3 Anchorages 16 11.3.4 Mandrel .16 11.3.5 Loading device.18 11.4 Test procedure.18 12 Chemical analysis18 13 Measurement of the geometrical characteristics.18 13.1 Test piece .18 13.2 Test equipment 19 13.3 Test procedures.19 13.3.1 Rib measurements.19 13.3.2 Indentation measurements .20 13
24、.3.3 Lay length of strand (P).20 13.3.4 Straightness .20 14 Determination of the relative rib area (fR)21 14.1 General21 14.2 Calculation of fR.21 14.2.1 Relative rib area .21 14.2.2 Simplified formulae23 14.2.3 Formula used for the calculation of fR.23 15 Determination of deviation from nominal mas
25、s per metre23 15.1 Test piece .23 15.2 Accuracy of measurement23 15.3 Test procedure.23 16 Test report 24 Bibliography 25 BS EN ISO 15630-3:2010ISO 15630-3:2010(E) ISO 2010 All rights reserved vForeword ISO (the International Organization for Standardization) is a worldwide federation of national st
26、andards 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 be represented on that committee. International o
27、rganizations, 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 Standards are drafted in accordance with the rules giv
28、en 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 International Standard requires approval by at least
29、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 15630-3 was prepared by Technical Committee ISO/TC 17,
30、Steel, Subcommittee SC 16, Steels for the reinforcement and prestressing of concrete. This second edition cancels and replaces the first edition (ISO 15630-3:2002), which has been technically revised. ISO 15630 consists of the following parts, under the general title Steel for the reinforcement and
31、prestressing of concrete Test methods: Part 1: Reinforcing bars, wire rod and wire Part 2: Welded fabric Part 3: Prestressing steel BS EN ISO 15630-3:2010ISO 15630-3:2010(E) vi ISO 2010 All rights reservedIntroduction The aim of ISO 15630 is to provide all relevant test methods for reinforcing and p
32、restressing steels in one standard. In that context, the existing International Standards for testing these products have been revised and updated. Some further test methods have been added. Reference is made to International Standards on the testing of metals, in general, as they are applicable. Co
33、mplementary provisions have been given if needed. BS EN ISO 15630-3:2010INTERNATIONAL STANDARD ISO 15630-3:2010(E) ISO 2010 All rights reserved 1Steel for the reinforcement and prestressing of concrete Test methods Part 3: Prestressing steel 1 Scope This part of ISO 15630 specifies test methods appl
34、icable to prestressing steels (bar, wire or strand) for concrete. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docum
35、ent (including any amendments) applies. ISO 4957, Tool steels ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature ISO 7500-1, Metallic materials Ve
36、rification of static uniaxial testing machines Part 1: Tension/ compression testing machines Verification and calibration of the force-measuring system ISO 7801:1984, Metallic materials Wire Reverse bend test ISO 9513, Metallic materials Calibration of extensometers used in uniaxial testing BS EN IS
37、O 15630-3:2010ISO 15630-3:2010(E) 2 ISO 2010 All rights reserved3 Symbols The symbols used in this part of ISO 15630 are given in Table 1. Table 1 Symbols Symbol Unit Description Reference ammm Rib height at the mid-point 13.3, 14.2 amaxmm Maximum height of rib or depth of indentation 13.3 as, imm A
38、verage height of a portion i of a rib subdivided into p parts of length l 14.2 a1/4mm Rib height at the quarter-point 13.3, 14.2 a3/4mm Rib height at the three-quarters point 13.3, 14.2 A % Percentage elongation after fracture 5.1, 5.3 Agt% Percentage total elongation at maximum force Clause 5 b mm
39、Width of transversal rib at the mid-point 13.3.1.6 c mm Rib or indentation spacing 13.3 C mm Groove width at nominal diameter of the mandrel, da, used for the deflected tensile test 11.3.4 d mm Nominal diameter of the bar, wire or strand 5.3.1, 7.2, 9.2, 9.4.6, 10.3.4 damm Nominal diameter of the ma
40、ndrel used for the deflected tensile test 11.3.4 dbmm Diameter with 2 gauge cylinders in the groove of the mandrel used for the deflected tensile test 11.3.4 demm Diameter of the gauge cylinder used for the deflected tensile test 11.3.4 dgmm Diameter of guide hole 7.2 dimm Inner diameter of the groo
41、ve of the mandrel used for the deflected tensile test 11.3.4 D % Average coefficient of reduction of the maximum force in the deflected tensile test 11.2, 11.4 Dcmm Inner diameter of the cell in the stress corrosion test 10.3.4 Di% Individual percentage of reduction of the maximum force in the defle
42、cted tensile test 11.4 Dmmm Diameter of the mandrel of the bending device in the bend test 6.2.1 e mm Average gap between two adjacent ribs or indentation rows 13.3.1.4, 13.3.2.5 E MPa Modulus of elasticity 5.2, 5.3 f Hz Frequency of force cycles in the axial force fatigue test 9.1, 9.4.2 fR Relativ
43、e rib area Clause 14 Fa, iN Individual breaking force in the deflected tensile test 11.4 FmN Maximum force in the tensile test 5.3 mF N Mean value of the maximum force 8.2, 10.2, 11.2, 11.4 Fp0,1N 0,1 % proof force, non-proportional extension 5.2, 5.3 Fp0,2N 0,2 % proof force, non-proportional exten
44、sion 5.2, 5.3 FrN Force range in the axial force fatigue test 9.1, 9.3, 9.4.2 BS EN ISO 15630-3:2010ISO 15630-3:2010(E) ISO 2010 All rights reserved 3Table 1 (continued) Symbol Unit Description Reference FrtN Residual force in the test piece at time t in the relaxation test 8.1 FrtN Force loss in th
45、e test piece at time t in the relaxation test 8.1 FRmm2Area of longitudinal section of one rib 14.2 FupN Upper force in the axial force fatigue test 9.1, 9.3, 9.4.2 F0N Initial force in the isothermal stress relaxation test and the stress corrosion test 8.1, 8.2, 8.3, 8.4, 10.1, 10.2, 10.4.2 G mm De
46、pth of the groove of the mandrel used for the deflected tensile test 11.3.4 h mm Distance from the top tangential plane of cylindrical supports to the bottom face of the guide 7.2 hbmm Bow height in the plane of the bow 13.3.4 l mm Length of indentation 13.3.2.4 Ltmm Length of the test piece in the
47、stress corrosion test 10.2 L0mm Gauge length (without force on the test piece) in the isothermal stress relaxation test Length of the test piece in contact with the solution in the stress corrosion test 8.1, 8.3, 8.4 10.2, 10.3.4, 10.4.1, 10.4.3, 10.4.5 L0mm Elongation of the gauge length, L0, under
48、 force, F0, in the isothermal stress relaxation test 8.1, 8.3, 8.4 L1mm Length of the passive side in the deflected tensile test 11.3.2 L2mm Length of the active side in the deflected tensile test 11.3.2 m, n Coefficients or numbers 8.4.9, 13.3, 14.2P mm Lay length of a strand 13.3.3 r mm Radius of
49、cylindrical supports 7.2 R mm Radius at the base of the mandrel used for the deflected tensile test 11.3.4 Ra m Surface roughness of the mandrel used for the deflected tensile test 11.3.4 Snmm2Nominal cross-sectional area of the test piece 5.3.2 tah Maximum agreed time for the stress corrosion test 10.4.5 tf, ih Individual lifetime to fracture in the stress corrosion test 10.4.5 ft h Median lifetime to fracture in the stress corrosion test 10.4.6 t0s Starting time in the isothermal stress relaxation tes
