BS_500-2000.pdf

BRITISH STANDARDBS500:2000Steel sleepers1CS45.080NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW出SBS500:2000ContentsPageCommittees responsibleInside front coverForewordScope2Normative references9Information and requirements to be agreed and to be documented3.1General13.2 Information to be supplied by the purchaser13.3Information to be supplied by the manufacturer when tendering to supplySleeper dimension2Type approval tests25.1Cyclic loading resistance25.2Lateral resistance5.3Electrical resistance26 MarkingAnnex A(informative)Advice on achieving and verifying product consistencyAnnex B(informative)Estimation of the maximum rail seat reactions andlateral forcesAnnex C(normative)Cyclic loading test procedure5Annex D(normative)Method of determining sleeper lateral resistance10Annex E(normative)Method of measuring electrical resistance11Annex F(normative)Specification for ballast12Bibliography13Figure C.1-Cyclic loading test arrangement8Figure C.2-Detail of thrust arm9Figure D.1-Ballast box dimensionsFigure E.1-Electrical resistance test arrangementTable F.1-Ballast sizes12BSI11-2000iBS500:20001 ScopeThis British Standard specifies performance requirements for steel sleepers for railway track.It includesdefinitive requirements relating to the ability of the sleeper to retain track geometry,sleeper durability,electrical resistance,and the control of the production process so that the consistency of the sleepersperformance is assured.2 Normative referencesThe following normative documents contain provisions which,through reference in this text,constitute盈provisions of this British Standard.For dated references,subsequent amendments to,or revisions of,any ofthese publications do not apply.For undated references,the latest edition of the publication referred toapplies.AdoBS 812-103.1,Testing aggregates-Part 103:Method for determination of particle size distribution-Section 103.1:Sieve tests.邑BS 812-105.1:1989,Testing aggregates-Part 105:Methods for determination of particle shape-Section 105.1:Flakiness indec.BS 812-105.2:1990,Testing aggregates-Part 105:Methods for determination of particle shape-Section 105.2:Elongation index of coarse aggregate.BS 6072:1981,Method for magnetic particle flow detection.BS EN 27888:1993,Water quality-Method for the determination of electrical conductivity.5BS EN ISO 7500-1:1999,Metallic materials-Verification of static uniaxial testing machines-Part 1:Tension/compression testing machines-Verification and calibration of the force-measuringsystem.n3 Information and requirements to be agreed and to be documentedO3.1 GeneralFor compliance with the standard,both the definitive requirements specified throughout the standard and么the following documented items shall be satisfied.3.2 Information to be supplied by the purchaser3.2.1 Fastening system specified by purchaserIf the purchaser specifies the fastening system to be used,the following information shall be supplied and乎fully documented:9a)the rail fastening system to be used(including the rail pad and any insulators)and whether itscomponents are to be supplied with the sleeper;0b)the nominal track gauge;c)the rail profile to be used;d)the nominal rail inclination;8e)the maximum static and dynamic rail seat reactions and the maximum lateral force to be supported(see annex B);f)any specific requirements to ensure that installation of the sleepers and track maintenance can beundertaken effectively using the procedures available to the purchaser;g)any specific requirements for the packaging and protection of sleepers in transit;h)whether an electrical resistance test is required and the minimum resistance to be achieved.3.2.2 Fastening system not specified by purchaserIf the purchaser does not specify the fastening system to be used,the following information shall be suppliedand fully documented:a)whether the fastening system is to be supplied with the sleeper as an assembled unit:b)the nominal track gauge and the acceptable variation;c)the rail profile to be used:d)the nominal rail inclination and its acceptable variation;e)the maximum static and dynamic rail seat reaction,and the maximum lateral force to be supported(see annex B);f)any specific requirements to ensure that installation of the sleepers and track maintenance can beundertaken effectively using the procedures available to the purchaser;g)any specific requirements for the packaging and protection of sleepers in transit;h)whether an electrical resistance test is required and the minimum resistance to be achieved.BSI11-2000