1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 15630-2:2010Steel for the reinforcement andprestressing of concrete TestmethodsPart 2: Welded fabricBS EN ISO 15630-2:2010 BRITISH STANDARDNational forewordThis British
2、 Standard is the UK implementation of EN ISO15630-2:2010. It supersedes BS EN ISO 15630-2:2002 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 committee ca
3、n 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 58490 9ICS 77.140.15; 91.080.40Compliance with a British Standard cannot confer immunity fromlegal
4、 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 15630-2 October 2010 ICS 77.140.15 Supersedes EN ISO 15
5、630-2:2002English Version Steel for the reinforcement and prestressing of concrete - Test methods - Part 2: Welded fabric (ISO 15630-2:2010) Aciers pour larmature et la prcontrainte du bton - Mthodes dessai - Partie 2: Treillis souds (ISO 15630-2:2010) Sthle fr die Bewehrung und das Vorspannen von B
6、eton -Prfverfahren - Teil 2: Geschweite Matten (ISO 15630-2:2010) 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 national standar
7、d 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 in any other la
8、nguage 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, Denmark, Est
9、onia, 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 NORMALISATION EUR
10、OPISCHES 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 15630-2:2010: EBS EN ISO 15630-2:2010EN ISO 15630-2:2010 (E) 3 Foreword The text of ISO 15630
11、-2:2010 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 15630-2:2010 by Technical Committee ECISS/TC 104 “Concrete reinforcing and prestressing steels” the secretariat of which is held by DIN. Th
12、is 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 that some of the
13、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 15630-2:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
14、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, Portugal, Romania,
15、Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15630-2:2010 has been approved by CEN as a EN ISO 15630-2:2010 without any modification. BS EN ISO 15630-2:2010ISO 15630-2:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Intro
16、duction.v 1 Scope1 2 Normative references1 3 Symbols1 4 General provisions concerning test pieces2 5 Tensile test.3 5.1 Test piece .3 5.2 Test equipment 3 5.3 Test procedure.3 6 Bend test on welded intersection 4 6.1 Test piece .4 6.2 Test equipment 4 6.3 Test procedure.5 6.4 Interpretation of test
17、results.5 7 Determination of the weld shear force (Fs).6 7.1 Test piece .6 7.2 Test equipment 6 7.3 Test procedure.11 8 Axial force fatigue test11 8.1 Principle of test11 8.2 Test piece .11 8.3 Test equipment 11 8.4 Test procedure.12 8.4.1 Provisions concerning the test piece12 8.4.2 Upper force (Fu
18、p) and force range (Fr).12 8.4.3 Stability of force and frequency.12 8.4.4 Counting of force cycles.12 8.4.5 Frequency.12 8.4.6 Temperature.12 8.4.7 Validity of the test12 9 Chemical analysis .12 10 Measurement of the geometrical characteristics of the fabric.13 10.1 Test piece .13 10.2 Test equipme
19、nt 13 10.3 Test procedure.13 11 Test report13 Bibliography14 BS EN ISO 15630-2:2010ISO 15630-2:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing In
20、ternational 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 organizations, governmental and non-governmental, in liaison
21、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 given in the ISO/IEC Directives, Part 2. The main task of techn
22、ical 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 75 % of the member bodies casting a vote. Attention is drawn
23、 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 15630-2 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 16, Steels for the reinforcement and
24、prestressing of concrete. This second edition cancels and replaces the first edition (ISO 15630-2:2002), which has been technically revised. ISO 15630 consists of the following parts, under the general title Steel for the reinforcement and prestressing of concrete Test methods: Part 1: Reinforcing b
25、ars, wire rod and wire Part 2: Welded fabric Part 3: Prestressing steel BS EN ISO 15630-2:2010ISO 15630-2:2010(E) ISO 2010 All rights reserved vIntroduction The aim of ISO 15630 is to provide all relevant test methods for reinforcing and prestressing steels in one standard. In that context, the exis
26、ting 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. Complementary provisions have been given if needed. BS EN ISO 1
27、5630-2:2010BS EN ISO 15630-2:2010INTERNATIONAL STANDARD ISO 15630-2:2010(E) ISO 2010 All rights reserved 1Steel for the reinforcement and prestressing of concrete Test methods Part 2: Welded fabric 1 Scope This part of ISO 15630 specifies test methods applicable to welded fabric for the reinforcemen
28、t of concrete. NOTE In some countries, the expression “welded wire reinforcement” is used in place of “welded (wire) fabric”. For those tests not specified in this part of ISO 15630 (e.g. bend test, rib/indentation geometry, mass per metre), ISO 15630-1 is applicable. 2 Normative references The foll
29、owing 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 document (including any amendments) applies. ISO 6892-1, Metallic materials Tensile testing Part 1: Me
30、thod of test at room temperature ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system ISO 9513, Metallic materials Calibration of extensometers used in uniaxial testing
31、3 Symbols The symbols used in this part of ISO 15630 are given in Table 1. BS EN ISO 15630-2:2010ISO 15630-2:2010(E) 2 ISO 2010 All rights reservedTable 1 Symbols Symbol Unit Description Reference A % Percentage elongation after fracture 5.1, 5.3 Ag% Percentage non-proportional elongation at maximum
32、 force (Fm) 5.3 Agt% Percentage total elongation at maximum force (Fm) Clause 5 d mm Nominal diameter of the bar or wire 5.3, 7.2, 8.4.7 D mm Diameter of the mandrel of the bending device in the bend test on a welded intersection 6.2.1 (Figure 2), 6.3f Hz Frequency of force cycles in the axial force
33、 fatigue test 8.1, 8.4.3 FmN Maximum force in the tensile test 5.3 FrN Force range in the axial force fatigue test 8.1, 8.3, 8.4.2, 8.4.3FsN Weld shear force Clause 7 FupN Upper force in the axial force fatigue test 8.1, 8.3, 8.4.2, 8.4.3r1mm Distance between the grips and the gauge length for the m
34、anual measurement of Agt5.3 r2mm Distance between the fracture and the gauge length for the manual measurement of Agt5.3 ReHMPa Upper yield strength 5.3 RmMPa Tensile strength 5.3 Rp0,2MPa 0,2 % proof strength, non-proportional extension 5.2, 5.3 Snmm2Nominal cross-sectional area of the bar or wire
35、8.4.2 Angle of bend in the bend test on a welded intersection 6.3 2aMPa Stress range in the axial force fatigue test 8.4.2 maxMPa Maximum stress in the axial force fatigue test 8.4.2 NOTE 1 MPa = 1 N/mm2. 4 General provisions concerning test pieces Unless otherwise agreed or specified in the product
36、 standard, the test pieces shall be taken from the welded fabric in the as-delivered condition. In the case of a curved test piece, the test piece shall be straightened prior to any tests by a bend operation with a minimum amount of plastic deformation. NOTE The straightness of the test piece is cri
37、tical for the tensile test and the fatigue test. The means of straightening the test piece (manual, machine) shall be indicated in the test report1). For the determination of the mechanical properties in the tensile test and the fatigue test, the test piece may be artificially aged, depending on the
38、 requirements of the relevant product standard. 1) For routine tests conducted by the reinforcing steel producers, the test information, including the test piece condition and method of straightening, should be contained within internal documentation. BS EN ISO 15630-2:2010ISO 15630-2:2010(E) ISO 20
39、10 All rights reserved 3If the product standard does not specify the ageing treatment, the following conditions should be applied: heating the test piece to 100 C, maintaining at this temperature 10 C for a period of 1 h150+min and then cooling in still air to the ambient temperature. If an ageing t
40、reatment is applied to the test piece, the conditions of the ageing treatment shall be stated in the test report. The test piece shall include at least one welded intersection. Cross wires or bars, and the wire or bar not to be tested in a twin-wire or -bar sample, shall be cut off before the test w
41、ithout damaging the wire or bar to be tested or the weld under test. 5 Tensile test 5.1 Test piece In addition to the general provisions given in Clause 4, the free length of the test piece shall be sufficient for the determination of percentage elongations in accordance with 5.3. If the percentage
42、elongation after fracture (A) is determined manually, the test piece shall be marked in accordance with ISO 6892-1. If the percentage total elongation at maximum force (Agt) is determined by the manual method, equidistant marks shall be made on the free length of the test piece (see ISO 6892-1). The
43、 distance between the marks shall be 20 mm, 10 mm or 5 mm, depending on the bar or wire diameter. 5.2 Test equipment The testing machine shall be verified and calibrated in accordance with ISO 7500-1 and shall be at least of class 1. If an extensometer is used, it shall be of class 1 in accordance w
44、ith ISO 9513 for the determination of Rp0,2; for thedetermination of Agt, a class 2 extensometer (see ISO 9513) may be used. Any extensometer used for the determination of the percentage total elongation at maximum force (Agt) shall have a gauge length of at least 100 mm. The gauge length shall be i
45、ndicated in the test report. 5.3 Test procedure The tensile test shall be carried out in accordance with ISO 6892-1. For the determination of Rp0,2, if the straight portion of the force-extension diagram is limited or not clearly defined, one of the following methods shall be applied: the procedure
46、recommended in ISO 6892-1; the straight portion of the force-extension diagram shall be considered as the line joining the points corresponding to 0,2Fmand 0,5Fm. In case of dispute, the second procedure shall be applied. The test may be considered invalid if the slope of this line differs by more t
47、han 10 % from the theoretical value of the modulus of elasticity. For the calculation of tensile properties (ReHor Rp0,2, Rm), the nominal cross-sectional area shall be used, unless otherwise specified in the relevant product standard. BS EN ISO 15630-2:2010ISO 15630-2:2010(E) 4 ISO 2010 All rights
48、reservedWhere fracture occurs in the grips or at a distance from the grips of less than 20 mm or d (whichever is the greater), the test may be considered as invalid. For the determination of percentage elongation after fracture (A), the original gauge length shall be 5 times the nominal diameter (d
49、), unless otherwise specified in the relevant product standard. In case of dispute, A shall be determined manually. For the determination of the percentage total elongation at maximum force (Agt), ISO 6892-1 shall be applied with the following modification: if Agtis determined by the manual method after fracture, Agtshall be calculated from the following formula: gt g m/2000AAR=+ (1) where Agis the percentage non-proportional elongation at maximum force. The measurement of Agshall be made on the longer
