1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58P
2、art 2: Suitability testThe European Standard EN 15048-2:2007 has the status of a British StandardICS 21.060.01Non-preloaded structural bolting assemblies BRITISH STANDARDBS EN 15048-2:2007BS EN 15048-2:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c
3、) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007ISBN 978 0 580 54678 5Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a Britis
4、h Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 15048-2:2007.The UK participation in its preparation was entrusted by Technical Committee FME/9, Nuts, bolts and accessories/steering committee, to Subcommittee FME/9/1, Mat
5、erial.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15048-2April 2007ICS 21.060.01English VersionNon-preloaded structur
6、al bolting assemblies - Part 2: SuitabilitytestBoulonnerie de construction mtallique non prcontrainte -Partie 2 : Essai daptitude lemploiGarnituren fr nicht planmig vorgespannteSchraubenverbindungen fr den Metallbau - Teil 2:EignungsprfungThis European Standard was approved by CEN on 6 August 2006.C
7、EN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on appl
8、ication 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 language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre ha
9、s the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu
10、gal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means res
11、ervedworldwide for CEN national Members.Ref. No. EN 15048-2:2007: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 2 Contents Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Symbols 5 5 T
12、ensile test of bolt/nut assemblies6 5.1 Principle6 5.2 Test conditions 6 5.3 Required failure mode.7 5.4 Required tensile resistance 7 6 Test documentation.7 Annex A (informative) Special testing conditions and procedures .9 Bibliography 10 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/1
13、2/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 3 Foreword This document (EN 15048-2:2007) has been prepared by Technical Committee CEN/TC 185 “Fasteners”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publicat
14、ion of an identical text or by endorsement, at the latest by October 2007, and conflicting national standards shall be withdrawn at the latest by October 2009. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun-tries are bound to implement t
15、his European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and U
16、nited Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 4 Introduction This part of this European Standard is intended to test the tensile resistance of bolt/nut/washer assemblies to ensure that the assemblies are suitable
17、 for use in non-preloaded structural bolting. The assemblies may be used in shear connections or in tension connections if no preload is required. Structural fasteners which meet the requirements of this part of this European Standard have been designed to allow tensile loading of at least fub Asacc
18、ording to EN 1993-1-8 (Eurocode 3). NOTE Asaccording to EN 1993-1-8 means As,nom according to the definition in Clause 4. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 5 1 Scope This part of this European Standard specifies a t
19、ensile test for bolt/nut assemblies to guarantee their suitability for non-preloaded bolted connections in civil engineering structures. It applies to assemblies of bolts, nuts (and wash-ers if required) with dimensional and mechanical characteristics as specified in EN 15048-1. 2 Normative referenc
20、es 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 document (including any amendments) applies. EN 15048-1:2007, Non-preloaded structural bolt
21、ing assemblies Part 1: General requirements EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999) EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 1: Bolts, screws and studs (IS
22、O 3506-1:1997) EN 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 7500-1:2004) ISO 273, Fasteners Clearance holes for bolts and screws ISO 6892, Metallic
23、 materials Tensile testing at ambient temperature 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 15048-1:2007 apply. 4 Symbols As, nomnominal stress area of the bolt, in mm2(see also EN ISO 898-1 and EN ISO 3506-1) d nominal thread diameter,
24、 in mm Fbforce in the bolted assembly during the test, in kN Fbi,maxindividual value of the maximum force reached by the assembly during the test, in kN Fubminimum tensile resistance, in kN, (see also EN 15048-1) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled C
25、opy, (c) BSIEN 15048-2:2007 (E) 6 fub nominal tensile strength (Rm, nom) of bolt, in N/mm2l bolt length, in mm 5 Tensile test of bolt/nut assemblies 5.1 Principle The principle of the test is to load the bolt/nut assembly and to measure the force in the bolted assembly during the tensile test. 5.2 T
26、est conditions 5.2.1 General The test shall be carried out in accordance with 5.2.2 to 5.2.5. NOTE Other conditions may be specified, see Annex A. 5.2.2 Test apparatus The tensile testing machine shall be in accordance with EN ISO 7500-1. Side thrust on the fastener shall be avoided, e.g. by self al
27、igning grips. 5.2.3 Test assemblies The test shall be carried out on a bolt/nut assembly without washers. Test assemblies shall be taken from a single assembly lot or extended assembly lot (see EN 15048-1). Each component of a test assembly shall be tested in the as received condition and shall be u
28、sed once only. 5.2.4 Test set-up Usually tests can be carried out on bolts or screws with l 3 d or studs with l 4 d. The test assemblies shall be positioned in a test set-up as shown in Figure 1 such that the clamp length is the maximum allowed in practice. The end of the bolt shall protrude not mor
29、e than one pitch (1 P) beyond the unloaded face of the nut. To be suitable for bolts with specific geometry (fitted or countersunk head bolt) the test setup has to be adapted. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 7 Key
30、 adhaccording to ISO 273, medium series Figure 1 Typical test set-up 5.2.5 Test procedure The test shall be carried out at an ambient temperature range of 10 C to 35 C. The tensile test shall be carried out in a continuous manner in accordance with ISO 6892 and the actual force in the bolted assembl
31、y, Fb,shall be measured continuously throughout the test. The speed of testing shall not exceed 20 mm/min. 5.3 Required failure mode Failure of an assembly with components of carbon steel or alloy steel shall occur by fracture in the free threaded length or by stripping the engaged threads but not i
32、n the shank or at the junction of the head to the shank or the thread or in the head. The failure of an assembly with components of stainless steel shall occur by fracture in the shank or in the free threaded length or by stripping the engaged threads but not by fracture at the junction of the head
33、to the shank or the thread or in the head. 5.4 Required tensile resistance In each tensile test the individual value of the maximum force reached by the assembly Fbi, max shall not be less than the specified tensile resistance Fub: Fbi, max Fub (1)where Fub= Rm, min As, nom6 Test documentation The f
34、ollowing minimum information shall be included in the test documentation: a) identification of the laboratory; Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 8 b) identification of the client; c) date of reception of the assembl
35、ies; d) date of testing; e) identification number of the assembly lot or the extended assembly lot (provided by the client); f) number of bolts, nuts and washers tested; g) designation of the fasteners; h) marking of bolts, nuts and washers if any; i) labelling of the containers; j) properties of th
36、e assemblies: thread tolerance, coating thickness and lubrication if any; k) tensile test parameters: clamp length and other remarks concerning the execution of tests if any (e. g. those on special testing conditions and procedures, see Annex A); l) individual tensile test results (observed failure
37、mode and maximum force achieved by the assembly Fbi,max); m) conclusions in relation to the requirements of this European standard. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 9 Annex A (informative) Special testing condition
38、s and procedures By agreement between the supplier and the purchaser, the following special conditions may be specified: a) Short or long bolts: If the bolts are too short to meet the testing conditions defined in 5.2 or too long to be placed in the usual test-ing apparatus, bolts with appropriate l
39、ength from the same production run may be tested with standard test conditions. b) Washers: The bolt/nut assembly may be tested with the washers intended for use. c) Loading: The speed of testing may be altered or discontinuous loading may be carried out. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA
40、STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIEN 15048-2:2007 (E) 10 Bibliography 1 ENV 1090-1, Execution of steel structures Part 1: General rules and rules for buildings 2 EN 1993-1-8, Eurocode 3, Design of steel structures Part 1-8: Design of joints Licensed Copy: Wang Bin, ISO/EXCHANGE
41、CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSIBS EN BSILicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/12/2007 01:18, Uncontrolled Copy, (c) BSI389 Chiswick High RoadLondo
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