1、BRITISH STANDARD BS EN 524-5:1997 Steel strip sheaths for prestressing tendons Test methods Part 5: Determination of tensile load resistance The European Standard EN 524-5:1997 has the status of a British Standard ICS 77.140.75; 91.080.40BSEN524-5:1997 This British Standard, having been prepared und
2、er the directionof the Sector Board forBuilding and Civil Engineering, was published underthe authorityof the Standards Boardand comes intoeffect on 15November 1997 BSI 03-2000 ISBN 0 580 28670 3 National foreword This British Standard is the English language version of EN 524-5:1997. The UK partici
3、pation in its preparation was entrusted by Technical Committee B/525, Building and civil engineering structures, to Subcommittee B/525/2, Structural use of concrete, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on
4、the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Stan
5、dards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standa
6、rd does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, a
7、n inside front cover, pagesi andii, theEN title page, pages2 and 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Dat
8、e CommentsBSEN524-5:1997 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 524-5 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN524-5 March1997 ICS 77.140.75; 91.080.40 Descriptors: Prestressed concretes, tubes, sheathing, prestressing steels, class
9、ifications, specification, verification, marking English version Steel strip sheaths for prestressing tendons Testmethods Part 5: Determination of tensile load resistance Gaines en feuillard dacier pour cbles de prcontrainte Mthodes dessai Partie 5: Dtermination de la rsistance la traction Hllrohre
10、aus Bandstahl fr Spannglieder Prfverfahren Teil 5: Bestimmung der Zugbelastbarkeit This European Standard was approved by CEN on 1997-01-27. 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 nati
11、onal standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in an
12、y other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Icel
13、and, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to
14、CEN members. Ref. No. EN 524-5:1997 EEN524-5:1997 2 BSI 03-2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 104, Concrete (performance, production, placing and compliance criteria), the Secretariat of which is held by DIN. This standard is a part of the series EN
15、524 Sheaths for prestressing tendons Test methods which comprises the following Parts: Part 1: Determination of shape and dimensions; Part 2: Determination of flexural behaviour; Part 3: To-and-fro bending test; Part 4: Determination of lateral load resistance; Part 6: Determination of leaktightness
16、 (Determination of water loss). These European standards apply to EN 523 Steel strip sheaths for prestressing tendons Terminology, requirements, quality control. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at
17、the latest by September 1997, and conflicting national standards shall be withdrawn at the latest by September 1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Den
18、mark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Apparatus and accuracy 3 4 Procedure 3 Figure 1 Example of a test set-up for de
19、terminingthe tensile load resistance 3EN524-5:1997 BSI 03-2000 3 1 Scope This European Standard specifies the procedure for determining the tensile load resistance of sheaths for prestressing tendons which comply with EN 523. 2 Normative references This European Standard incorporates by dated or und
20、ated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when
21、 incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 523:1997, Steel strip sheaths for prestressing tendons Terminology, requirements, quality control. 3 Apparatus and accuracy The following test equipment is required: a t
22、esting machine or a suitable test frame with a hydraulic or mechanical drive; a load measuring device with an accuracy of2% of the tensile load specified in Table 1 in EN 523:1997; a deformation measuring device such as folding rule. 4 Procedure A 1 100 mm long specimen shall be connected to at leas
23、t one corresponding coupler (see 5.2 of EN523:1997) and subjected to the loads specified in Table 1, line 6 of EN 523:1997. No internal stiffeners shall be used. The displacement of the coupler in relation to the sheath, occurring under the specified load, shall be measured. This test value rounded
24、off to the nearest full millimetre has to be recorded together with any unusual observations. Figure 1 Example of a test set-up for determining the tensile load resistanceBS EN 524-5:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body res
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