1、DRAFT FOR DEVELOPMENT DD CEN/TS 15087:2005 Determination of the uplift resistance of installed clay and concrete interlocking tiles for roofing Test method for mechanical fasteners ICS 91.060.20; 91.100.30 Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSIDD CEN/TS
2、 15087:2005 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 9 February 2006 BSI 9 February 2006 ISBN 0 580 47764 9 National foreword This Draft for Development is the official English language version of CEN/TS 15087:2005. This publicati
3、on is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because it is considered that further experience is required in its application before it is converted into a European and hence British Standard. It
4、should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion to
5、 a European standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an announcement in the appropria
6、te issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European standard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent in writi
7、ng to the Secretary of BSI Subcommittee B/542/1, Slating and tiling, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text. A list of organizations represented on this subc
8、ommittee 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 Catalogue under the section entitled “International Standards Correspondence Index”, or by using th
9、e “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Summary of pages This document comprises a front cover, an inside front cove
10、r, the CEN/TS title page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSIT
11、ECHNICALSPECIFICATION SPCIFICATIONTECHNIQUE TECHNISCHESPEZIFIKATION CEN/TS15087 December2005 ICS91.060.20;91.100.30 EnglishVersion Determinationoftheupliftresistanceofinstalledclayand concreteinterlockingtilesforroofingTestmethodfor mechanicalfasteners Dterminationdelarsistanceausoulvementdestuiles
12、embotemententerrecuiteouenbtonmisesenoeuvre surlatoitureMthodedessaidesfixationsmcaniques BestimmungdesAbhebewiderstandesvonverlegten DachziegelnoderBetondachsteinenPrfverfahrenfr mechanischeVerbindungselemente ThisTechnicalSpecification(CEN/TS)wasapprovedbyCENon1March2005forprovisionalapplication.
13、TheperiodofvalidityofthisCEN/TSislimitedinitiallytothreeyears.AftertwoyearsthemembersofCENwillberequested tosubmittheir comments,particularlyonthequestionwhethertheCEN/TScanbeconvertedintoaEuropeanStandard. CENmembersarerequiredtoannouncetheexistenceofthisCEN/TSinthesamewayasforanENandtomaketheCEN/T
14、Savailable promptlyatnationallevelinanappropriateform.Itispermissibletokeepconflictingnationalstandardsinforce(inparall eltotheCEN/TS) untilthefinaldecisionaboutthepossibleconversionoftheCEN/TSintoanENisreached. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Es
15、tonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG Management
16、Centre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.CEN/TS15087:2005:E Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSICEN/TS 15087:2005 2 Contents Page Foreword 3 1 Scope .4 2
17、Normative references .4 3 Terms and definitions.4 4 Symbols and abbreviations4 5 Sampling5 6 Test conditions .5 7 Test material6 8 Apparatus 6 9 Test Procedure6 10 Evaluation and expression of results8 11 Test report .9 Annex A (informative) Example of an arrangement of the test apparatus for determ
18、ination of fastener strength.10 Annex B (informative) Hinged batten for supporting a test tile 11 Annex C (informative) Calculation of characteristic values 12 Annex D (informative) Maximum design value of the uplift resistance 13 Annex E (informative) Force actions on clip in an assembly of roofing
19、 elements 14 Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSICEN/TS 15087:2005 3 Foreword This Technical Specification (CEN/TS 15087:2005) has been prepared by Technical Committee CEN/TC 128 “Roof covering products for discontinuous laying and products for wall c
20、ladding”, the secretariat of which is held by IBN. This document is applicable where the National application standards, and/or, regulations, specify a requirement for the uplift resistance of installed clay or concrete tiles for roofing. No existing European Standard is superseded. According to the
21、 CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this CEN Technical Specification: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
22、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSI4 1 Scope This Technical Specification specifies a test method for determining the stren
23、gth and uplift resistance of fasteners for clay and concrete interlocking tiles for roofing. NOTE 1 The results of this test may be used to determine the uplift force which can be withstood by the fastener; e.g. to withstand wind force. NOTE 2 When the results of the test method for mechanical faste
24、ners have a correlation to the results of the roof system test method EN 14437 they can be used to establish the uplift resistance of installed clay and concrete tiles for roofing. The test method is applicable to mechanical fasteners such as clips, hooks, screws and nails. It is not applicable to f
25、asteners which hold down more than one tile. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this Technical Specification, the following terms and definitions apply. 3.1 characteristic value value of a material property having a prescribed probability of not being
26、attained in a hypothetical unlimited test series; this value generally corresponds to a specific fractile of the assumed statistical distribution of the particular property of the material 3.2 gauge length of the exposed part of the fixed tile, measured longitudinally; this is the same as the batten
27、 gauge 3.3 mechanical fasteners screws, clips, nails and hooks 4 Symbols and abbreviations d max maximum displacement of tile D (mm); Ftest load, (N); F cforce acting on the mechanical fastener; F 0 test load without a fastener fitted (N); F i, MAXmaximum test load at failure (N); k na factor depend
28、ing on the number of tests n; L hhanging length (mm); L Fdistance between the pivot line and the applied uplift force (mm); CEN/TS 15087:2005 Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSI5 L C distance between the pivot line and the centre of the clip (mm); n
29、number of tests; R dmaximum design value; R kcharacteristic fastener uplift resistance (N); R iindividual fastener uplift resistance (N); R xmean fastener uplift resistance (N); s xstandard deviation of the uplift resistance (N); partial safety factor for resistance, which may be defined by a nation
30、al regulation; F tis the uplift force (N) acting in the centre of the exposed area of each tile or slate; g is the acceleration due to gravity, 9,81 ms 2;q is the moment arm (m) shown in Figure E.1; r is the moment arm (m) shown in Figure E.1; w tis the mass of one tile (kg); p is the moment arm (m)
31、 shown in Figure E.1; is the angle of the tile or slate to the horizontal (degrees) when laid on the roof. 5 Sampling The clay and concrete tiles for the roofing selected shall be representative of the tiles specified by the manufacturer. The battens selected shall be representative, i.e., in line w
32、ith the tile product and instructions of the clip manufacturer. The fasteners used for the test shall be representative of the manufactured product. In selecting the number of elements refer to Clauses 7 and 9, taking into consideration that in each case a trial test and at least 3 tests shall be co
33、nducted. NOTE The specification of the battens may include a reference to a national code of practice. 6 Test conditions Unless specified otherwise, the roofing tiles, fasteners and test frame shall be stored for at least 24 hours in an environment of (20 5) C, and (60 20) % relative humidity, prior
34、 to the test. The manner of storage shall not interfere with the free exchange of moisture from or into the materials. The test shall be conducted in the same conditions as the storage. NOTE If in practice, the moisture content of the battens is expected to be different from the standard conditions,
35、 and if it is expected that this may influence the test results, this should be taken into account; e.g. by testing under the appropriate conditions and recording the moisture content of the battens used. CEN/TS 15087:2005 Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy,
36、 (c) BSI6 7 Test material The test materials shall be randomly chosen from the samples. 8 Apparatus 8.1 Test Rig An example of the apparatus is shown in Annex A, and consists of: a) a horizontal rigid base frame onto which is attached counter battens (to simulate rafters at the maximum intended raft
37、er centres) and tiling battens set at the appropriate gauge. The top tiling batten shall be attached to the counter battens by hinges (see Annex B); b) the tiles to be tested are fastened to the battens with tail clips fixed to the tail (lower half of tile) batten and/or nails/screws /head clips fix
38、ed to the head (top part of tile) batten; c) a means of loading test sample via a load application device, capable of applying a loading rate of not less than 100 N/min initially in a direction normal to the tile surface at the loading point; d) a load application device that includes a calibrated f
39、orce-measuring device e.g. load cell. The load application device shall be hinged at both ends and the length of the device between the hinges should exceed the hanging length of the tile; e) a rigid bar, incorporating an accurate system for locating and supporting a calibrated displacement- measuri
40、ng device, the bar shall permit the tail of the fixed tile to be raised by d max(see 9.2.3 d). 8.2 Force measuring device A calibrated force-measuring device shall be used to determine the uplift force having a maximum inaccuracy in combination with the reading equipment of 1 % of the measured value
41、 or 10 N, whichever is the larger. 8.3 Measuring device for displacement of the roofing tiles A calibrated displacement-measuring device shall be used to determine the displacement of the roofing tiles and shall have a maximum inaccuracy of 0,2 mm. The displacement-measuring device shall not exert f
42、orces larger than 1 % of the uplift force. The measuring device shall be able to measure displacements in excess of d max . NOTE Other apparatus satisfying Clause 8 may also be used. 9 Test Procedure 9.1 Procedure for Setting up the Test Fix the counter-battens (to simulate the rafters) to the base
43、frame at 600 mm spacing. Fix the battens of appropriate dimensions to the counter-battens at the specified minimum gauge for the roofing element. Referring to Figure 1 lay tiles A and B. CEN/TS 15087:2005 Licensed Copy: Wang Bin, na, Fri May 12 02:54:07 BST 2006, Uncontrolled Copy, (c) BSI7 Straight
44、 bond: Broken (half) bond: Figure 1: Arrangement of tiles (A, B, B 1 , B 2 , C, D are tiles) The load application device shall be attached to tile C at the centre of its exposed area. Lay tile C then attach and fix the fastener to the test sample in accordance with the relevant specification and nor
45、mal standards of workmanship, then lay tile D without fastener. Securely fix tiles C and D at their heads to the top (hinged) batten (e.g. by nails, screws, bolts or clamps). If the fixing configuration under test includes head fasteners then the head of tile C shall be fixed with the test head fast
46、eners and the hinged batten replaced with a fixed batten and arrangements made to have a tile overlap tile C to allow the measurement of the residual displacement. Attach the displacement-measuring device to its rigid support such that it measures the displacement of tile D over the fastener positio
47、n and in a direction normal to the surface of tile D. NOTE 1 The lower batten, supporting the tails of tiles A and B, will need to be of greater depth e.g. double batten than the other battens so that tiles A and B will lay parallel to tiles C and D in the final assembly. NOTE 2 Care should be taken
48、 to ensure that the size and/or positioning of the hinges on the top batten does not interfere with the seating of the tiles. NOTE 3 Most interlocking tiles are laid from right to left. If the test tiles are those which are laid from left to right then the arrangement shown in Annex A and Figure 1 should be treated as a mirror image with tile numbers and instructions adjusted accordingly. NOTE 4 Most tiles can be laid in straight bond, but if they can only be laid in broken (half) bond then the alternative arrangement shown in Figure
