1、Designation:C156808(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,in the
2、 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 of concrete
3、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,thatare used to
4、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 the user of this st
5、andard 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 Brick andStructural Clay
6、 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 TilesNOTE1This standard
7、 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 Design Loads for Building
8、s 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 in the resistance of concr
9、eteand 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 accordance with,the manufacturersins
10、tructions,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 intensity,duration,and turbulence;these co
11、nditionsare 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 sufficient strength to remain rigid when l
12、oads 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 rotates about theframe to facilitate the loading of
13、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 load is applied to thetile through a load transfer de
14、vice(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 2013.Originallyapproved in 2003.Last previous edition
15、 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 standards Document Summary page onthe ASTM website.3The last ap
16、proved 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 States1 linkage)and is measured by a load cell capable of operating 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 r
