ASTM_E_2265_-_09.pdf

Designation:E226509Standard Terminology forAnchors and Fasteners in Concrete and Masonry1This standard is issued under the fixed designation E2265;the number immediately following the designation indicates the year oforiginal adoption or,in 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 terminology covers standard terminology for an-chors and fasteners installed in structural members made ofconcrete or masonry.1.2 This terminology does not cover terms relating to themechanical properties of the materials used for fabricatinganchors,nor does it cover their use.1.3 The terms are listed alphabetically.Compound termsappear in the natural spoken order.2.Terminologyadhesive anchoranchor placed into a hole in the basematerial,and which derives its holding strength from achemical adhesive placed between the wall of the hole in thebase material and the embedded portion of the anchor.allowable loadcapacity assigned to an anchor in accordancewith allowable-stress design procedures.anchorcast-in-place or post-installed fastening device in-stalled in the base material for the purpose of transferringloads to the base material.anchor loading:axialload applied concentrically with theanchor longitudinal axis.anchor loading:bendingflexure induced in the anchor byapplication of a shear load at a distance from the surface ofthe base material.anchor loading:combinedaxial and shear loading appliedsimultaneously(oblique loading).anchor loading:shearload applied parallel to the surface ofthe base material and perpendicular to the anchors longitu-dinal axis.anchor spacingdistance between anchors measured center-line to centerline.attachmentstructural element(fixture)external to the sur-face of the base material,and which transmits loads to theanchor.base materialmaterial in which anchor is installed,such asconcrete or masonry.bond failurefailure mode characterized by loss of bondeither between the anchor and adhesive or between theadhesive and the base material.cast-in-place anchoranchor installed in formwork prior toplacement of concrete.characteristic valuethe 5%fractile(value with a 95%probability of being exceeded,with a confidence of 90%).clamping forcecompression force transmitted to the basematerial as a result of preload in the anchor.concrete breakout failureanchor failure mode character-ized by concrete cone failure or concrete edge failure.connectionattachment of load-bearing element to concreteor masonry base materials using anchors.cracked concretefor testing purposes,a test member havingone or more cracks,each of which is approximately uniformin width through the depth of the member.DISCUSSIONOnly one crack is permitted in the area of influence ofthe test anchor.critical edge distanceminimum anchor edge distance,mea-sured from the anchor centerline to the edge of the structuralmember,at which the full anchor capacity can be obtainedwithout concrete edge breakout failure or splitting failure.critical spacingminimum anchor spacing,measured center-line to centerline of the anchors,at which the full anchorcapacity can be obtained without influence from adjacentanchors.cure timethe length of time required for a grouted anchor oran adhesive-bonded anchor to develop its specified strength.diamond core bitnon-percussion drill bit,usually utilizing ahollow cylindrical pipe or tube with a diamond-impregnatedmatrix at the end that is used to drill in the base material.displacementmovement of anchor relative to the structuralmember.1This terminology is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.13on Structural Performance of Connections in Building Construction.Current edition approved Sept.1,2009.Published September 2009.Originallyapproved in 2003.Last previous approved in 2008 as E2265 08.DOI:10.1520/E2265-09.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 DISCUSSION For tension tests,displacement is measured parallel tothe anchor axis;for shear tests,displacement is measured perpendicularto the anchor axis.displacement-controlled expansion anchora post-installedanchor that derives its holding strength by expansion againstthe side of the drilled hole through movement of an internalplug in the sleeve or through movement of the sleeve over anexpansion element(plug).Once set,the anchor does notexpand further under load.drillelectric-,hydraulic-,or air-powered tool for boringholes into the base material,using rotary action,oftensupplemented by percussion or hammering.drill bitsolid-shaft,carbide-tipped bit,usually with spiralflutes,used to drill holes in the base material.edge distanceperpendicular distance from the centerline ofthe anchor to the edge of the structural member in whichanchor is installed.effective embedment de