【BS英國(guó)標(biāo)準(zhǔn)】BS EN 52411997 Steel strip sheaths for prestressing tendons – Test methods

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1、 國(guó)內(nèi)外標(biāo)準(zhǔn) 大全 豆丁網(wǎng)國(guó)內(nèi)外標(biāo)準(zhǔn)下載地址 BRITISH STANDARD Steel strip sheaths for prestressing tendons D Test methods Part 1. Determination of shape and dimensions The European Standard E

2、N 524-1 : 1997 has the status of a British Standard ICS 77.140.75; 91.080.40 | BS EN 524-1 : 1997 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

3、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 524-1 : 1

4、997 National foreword This British Standard is the English language version of EN 524-1 : 1997. The UK participation 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 t

5、he responsibility to: ± aid enquirers to understand the text; ± present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; ± monitor related international and European developments and promulgate t

6、hem in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the

7、 section entitled `International Standards Correspondence Index', or by using the `Find' facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary

8、of pages This document comprises a front cover, an inside front cover, an EN title page, pages 2 to 4, an inside back cover and a back cover. Amd. No. Date Text affected This British Standard, having been prepared under the direction of the Sector Board for Buil

9、ding and Civil Engineering, was published under the authority of the Standards Board and comes into effect on 15 November 1997 BSI 1997 ISBN 0 580 28666 5 Amendments issued since publication EUROPEAN STANDARD EN 524-1 NORME EUROPE? ENNE EUROPAè ISCHE NORM March 1997

10、 ICS 77.140.75; 91.080.40 Descriptors: Prestressed concretes, tubes, sheathing, prestressing steels, classifications, specification, verifications, marking English version Steel strip sheaths for prestressing tendons D Test methods D Part 1: Determination of shape and dimensions

11、 Gaines en feuillard d'acier pour ca? bles de pre? contrainte D Me? thodes d'essai D Partie 1: De? termination de la forme et des dimensions Huè llrohre aus Bandstahl fuè r Spannglieder D Pruè fverfahren D Teil 1: Ermittlung der Formen und Ma?e This European Stand

12、ard 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 national standard without any alteration. Up-to-date lists and bibliographical referen

13、ces 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 any other language made by translation under the responsibility of a CEN

14、 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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway

15、, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comite? Europe? en de Normalisation Europaè isches Komitee fuè r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN

16、 members.  Ref. No. EN 524-1 : 1997 E Page EN 524-1 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 104, Concrete Contents  Page (performance, production, placing and compliance criteria), the Secretar

17、iat of which is held by DIN. 1 Scope 3 2 Normative references 3 3 Apparatus and accuracy 3 4 Internal diameter, height of profile and wall thickness of sheaths 3 5 Relative volume of profile 3 This standard is a part of the series EN 524 Sheaths for prestressing tendons D Tes

18、t methods which additionally comprises the following Parts ± Part 2 Determination of flexural behaviour ± Part 3 To-and-fro bending test ± Part 4 Determination of lateral load resistance ± Part 5 Determination of tensile load resistance ± Part 6 Determination of leaktightne

19、ss (Determination of water loss) These European standards apply to EN 523 Steel strip sheaths for prestressing tendons D 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 endo

20、rsement, at 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: Au

21、stria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword 2 Page 3 EN 524-1 : 1997 1 Scope This European Standard specifies the proce

22、dure for determining the shape and dimensions of sheaths for prestressing tendons which comply with EN 523. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate pla

23、ces in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these 5 Relative volume of profile A test specimen with a length of at least l = 500 mm1) shall be sealed at one end so that it is watertight. The total volume Vt

24、ot of the hollow space inside the specimen shall be determined by filling the specimen with water and then measuring the content (see figure 2). The volume Vref and the surface area Aref of the reference cylinder shall be calculated from the mean internal diameter d1 as described in clause

25、4 and the length l of the test specimen. The relative volume of the profile (Vrel) measured in cm3/cm2 is calculated using the following equation: Vtot 2 Vref publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the l

26、atest edition of the publication referred to applies. Vrel = where Aref EN 523 Steel strip sheaths for prestressing tendons D Terminology, requirements, quality control 3 Apparatus and accuracy ± A possible test device is shown in figure 2 ± The procedure to determine the re

27、lative volume of profile (Vrel) shall allow for an accuracy of 5 % ± Vernier calliper (accuracy of 0,1 mm) ± Micrometer gauge (accuracy of 0,01 mm) 4 Internal diameter, height of profile and wall thickness of sheaths The internal diameter, d1, and the height of profile, h, shall be determi

28、ned by means of a vernier calliper using the specimen described in clause 5. Measurements shall be taken at both ends of the specimen in two directions at right angles to one another (see figure 1) before the specimen is sealed. The mean values shall be calculated from the values obtained. Th

29、e wall thickness shall be measured by a micrometer gauge at least at four different points. Aref (= 3 d1 3 l) is the surface area of the reference cylinder (in cm2); Vref is the volume of the reference cylinder (in cm3); Vtot is the volume of water in the specimen (in cm3).

30、 Figure 1. Internal diameter, height of profile and wall thickness of sheaths 1) It is recommended that the specimen length chosen is such that the specimen can be used for the other test. BSI 1997 Page EN 524-1 : 1997

31、 Figure 2. Test set-up for determining the total volume BSI 1997 blank

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