ASTM C1568-2008(2013) Standard Test Method for Wind Resistance of Concrete and Clay Roof Tiles (Mechanical Uplift Resistance Method)《水泥屋面瓦和粘土屋面瓦抗风性能的标准试验方法(机械提升阻力法)》.pdf
《ASTM C1568-2008(2013) Standard Test Method for Wind Resistance of Concrete and Clay Roof Tiles (Mechanical Uplift Resistance Method)《水泥屋面瓦和粘土屋面瓦抗风性能的标准试验方法(机械提升阻力法)》.pdf》由会员分享,可在线阅读,更多相关《ASTM C1568-2008(2013) Standard Test Method for Wind Resistance of Concrete and Clay Roof Tiles (Mechanical Uplift Resistance Method)《水泥屋面瓦和粘土屋面瓦抗风性能的标准试验方法(机械提升阻力法)》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C1568 08 (Reapproved 2013)Standard Test Method forWind Resistance of Concrete and Clay Roof Tiles(Mechanical Uplift Resistance Method)1This standard is issued under the fixed designation C1568; the number immediately following the designation indicates the year oforiginal adoption or, i
2、n the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a procedure to determine themechanical uplift resistance o
3、f concrete and clay roof tiles,which relates to the wind resistance of an air-permeable rooftile system as applied to a roof.1.2 The procedure covers mechanically-fastened attachmentsystems, adhesive-set attachment systems, and mortar-set at-tachment systems, or combinations of attachment systems, t
4、hatare used to apply tile to a roof.1.3 The values stated in inch pound units are to be regardedas the standard. The values in parentheses are given forreference only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of
5、the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C43 Terminology of Structural Clay Products (Withdrawn2009)3C67 Test Methods for Sampling and Testing Bri
6、ck andStructural Clay TileC140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC1167 Specification for Clay Roof TilesC1492 Specification for Concrete Roof Tile2.2 SBCCI Standard:SBCCI SSDT 11 SBCCI Test Standard for DeterminingWind Resistance of Concrete or Clay Roof Ti
7、lesNOTE 1This standard is based on the International Code CouncilsICC/SBCCI SSTD 11 Test Standard for Determining Wind Resistance ofConcrete or Clay Roof Tiles, and work derived from the tile industrystesting programs completed in the Redland Wind Tunnel in the UK.2.3 ASCE Standard:ASCE 7 Minimum De
8、sign Loads for Buildings and OtherStructures3. Terminology3.1 DefinitionsFor definitions of terms used in this testmethod refer to Terminology C43, and Specifications C1167and C1492.4. Significance and Use4.1 The method of attachment of roof tiles to the roof deck,or support structure, is one factor
9、 in the resistance of concreteand clay roof tiles to the action of wind. Several systems ofattachment, and even combinations of systems, are used in theapplication of tile to a roof. The mechanical uplift resistance ofthe tile, when applied to the roof by any attachment systemapproved by, and in acc
10、ordance with, the manufacturersinstructions, is a primary factor in the tiles resistance to theaction of wind. This test method determines the mechanicaluplift resistance that is related to resistance to the uplift forcesacting as a result of wind. Natural wind conditions differ withrespect to inten
11、sity, duration, and turbulence; these conditionsare beyond the means of this test method to simulate.5. Apparatus5.1 A test apparatus shown in Fig. 1 shall be used to test themechanical uplift resistance of roof tiles. The triangulatedframework and loading bar shall be constructed of tubular steelof
12、 sufficient strength to remain rigid when loads of up to 500lbf are applied to the test tile. The frame shall be fixed to thefloor to prevent movement of the frame and to provide a solidreference plane for deflection measurements. The joints of theframe shall be rigid, however, the loading bar rotat
13、es about theframe to facilitate the loading of the test tile. The other end ofthe loading bar is attached to a hydraulic jack, or similarlycontrollable mechanical device, which allows the load to beapplied gradually and to be maintained at any desired loadwhile deflections are being measured The loa
14、d is applied to thetile through a load transfer device (steel bolt with chain1This test method is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.06 on Roofing Tile.Current edition approved Dec. 1, 2013. Published December
15、 2013. Originallyapproved in 2003. Last previous edition approved in 2008 as C1568 08. DOI:10.1520/C1568-08R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the s
16、tandards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1linkage) and is measured by a load cell capable of o
17、perating atup to 500 lbf. The roof framing used for the specimens shall beeither fixed to the floor, anchored to the triangulatedframework, or weighted to prevent the roof framing from beinglifted during the test. Deflections are measured by dial gagesfirmly fixed to a reference plane so that as the
18、 tile is loaded andthe tile or test frame distorts, the reference position remainsstatic. A dial gage plunger is placed on top of the tile nose ina central position to measure the mechanical uplift of the tile.Additional dial gages are required depending on the method oftile attachment: (a) in mecha
19、nically fastened systems, a dialgage at the fastener in the bead of the tile to measurewithdrawal of the fastener; (b) when a clip is used, a dial gageat the clip to measure deflection and permanent set of the clip;and (c) when a barrel tile is used, a dial gage at the roll of thetile to measure the
20、 deflection of the roll due to the rotation ofthis type of tile.6. Procedure6.1 Drill the test tile and install the steel-bolt load-transferdevice into to the tile as follows:6.1.1 Drill a hole along the centerline of the exposed widthof the tile at 0.76 times the tile length from the head of the ti
21、leusing a14 in. (6 mm) non-percussion, cutting carbide bit.Discard any tile that, after drilling, exhibits spalling or chip-ping around the hole in excess of14 in. (6 mm). Installa4in.(100 mm) long,14 in. (6 mm) diameter steel bolt witha1in.(25 mm) diameter steel washer under the tile through the ho
22、le.It is not prohibited to shape the washer to match the contour ofthe underside of the tile. It is also not prohibited to omit thewasher.6.2 Install the tile in the same manner as on a roof, inaccordance with the manufacturers instructions, on a smallsection of roof deck constructed to fit within t
23、he frame of thetest apparatus as shown in Fig. 1. The rafters shall be securelyanchored to the frame or the floor and the sheathing firmlynailed to the rafters. If the roofing underlayment transfersloads, the underlayment shall be installed and, if required,battens shall be nailed to the sheathing.
24、The tile to be testedshall then be installed onto the roof deck section. Tiles in thecourse below the test tile shall be installed to ensure that the tilebeing tested is at the correct angle to the sheathing with thenose of the test tile at the correct angle to the tile course below.6.3 The loading
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