A0184_A0184M-06混凝土加筋用变形钢筋编织网.pdf
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1、Designation:A 184/A 184M 06Standard Specification forWelded Deformed Steel Bar Mats for ConcreteReinforcement1This standard is issued under the fixed designationA184/A184M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of l
2、ast revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification covers material in ma
3、t(or sheet)formfabricated from deformed steel bars to be used for thereinforcement of concrete.Mats consist of two layers of barsthat are assembled at right angles to each other.Mats areassembled by welding at the intersections.1.2 This specification is applicable for orders in eitherinch-pound unit
4、s(as Specification A 184)or SI units(asSpecification A 184M).1.3 The values stated in either inch-pound units or SI unitsare to be regarded as standard.Within the text,the SI units areshown in brackets.The values stated in each system are notexact equivalents;therefore,each system must be used inde-
5、pendently of the other.Combining values from the two systemsmay result in nonconformance with this specification.2.Referenced Documents2.1 ASTM Standards:2A 615/A 615M Specification for Deformed and PlainCarbon-Steel Bars for Concrete ReinforcementA 700 Practices for Packaging,Marking,and LoadingMet
6、hods for Steel Products for ShipmentA 706/A 706M Specification for Low-Alloy Steel De-formed and Plain Bars for Concrete Reinforcement2.2U.S.Military Standard:MIL-STD-129 Marking for Shipment and Storage32.3U.S.Federal Standard:Fed Std No.123 Marketing for Shipments(CivilAgencies)33.Ordering Informa
7、tion3.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for material ordered to thisspecification.Such requirements shall include,but are notlimited to,the following:3.1.1 Quantity,3.1.2 Size and spacing of members in each direction,3.1.3 Grade required(
8、Grade 40 or 60)280 or 420,3.1.4 Type of steel as appropriate(see Section 4),3.1.5 ASTM designation A 184/A 184M and year of issue.NOTE1A typical ordering description is as follows:1000 bar mats toASTM A 184;fabricated from Grade 40 bars to ASTM A 615;6 by6 in.;No.4 by 120 in.longitudinal tip to tip,
9、outer bars spaced 54 in.;No.3 by 60 in.transverse,outer bars spaced 114 in.1000 bar mats toASTMA 184M;fabricated from Grade 280 bars toASTM A 615M;150 by 150 mm;No.10 by 3000 mm longitudinal tipto tip,outer bars spaced 1350 mm;No.10 by 1500 mm transverse,outerbars spaced 2850 mm.4.Material and Manuf
10、acture4.1 Deformed steel bars of Grades 40 280 used in themanufacture of welded mats shall conform to SpecificationA 615 A 615M.Deformed steel bars of Grade 60 420 usedin the manufacture of welded mats shall conform to Specifi-cation A 615 A 615M or A 706 A 706M.5.Fabrication5.1 Fabricated mats shal
11、l be composed of two layers of barssubstantially parallel and perpendicular to each other.5.1.1 Mats shall be assembled by means of welding toprovide attachment at intersections.5.1.1.1 Welds shall provide attachment at all exterior inter-sections and at not less than alternate interior intersection
12、s.5.1.1.2 The separation of 5%or less of all welded intersec-tions of any mat shall not be cause for rejection provided thatno more than half of the welds on any one bar are separated.5.1.1.3 Welding shall be performed in such a manner thatthe strength and ductility requirements of the material spec
13、ifi-cations in Section 4 are met when a specimen is tested acrossa point of weld.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel,and Related Alloys and is the direct responsibility of SubcommitteeA01.05 on Steel Reinforcement.Current edition approved Marc
14、h 1,2006.Published March 2006.Originallyapproved in 1936.Last previous edition approved in 2005 as A 184/A 184M 05.2For 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 st
15、andards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.Or visit:http:/assist.daps.dla.mil/online.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Int
16、ernational,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.NOTE2Welding of the mat intersections has generally been per-formed without problems,but care should be taken when weldingreinforcing bars without carbon equivalent levels above 0.55%,in order toprevent cracki
17、ng in the weld area.6.Mechanical Properties6.1 Mats shall be capable of withstanding a static load of150 lbf 670 N exerted perpendicular to the plane of the mattending to separate the bars with no apparent loosening whenapplied to one intersection of the connected bars.6.2 Number of Tests:6.2.1 One
18、sample consisting of not less than two connec-tions on the same transverse member shall be tested forconformance with the provisions of 5.1.1.3 and 6.1 from each75 000 ft27000 m2 of mats or fraction thereof.6.3 Test Methods:6.3.1 Tension test specimens for determining conformancewith 5.1.1.3 shall h
19、ave a welded joint located approximately atthe center of the bar being tested,and the cross bar shall extendapproximately 1 in.25 mm beyond each side.All unit stressdeterminations shall be based on the nominal area calculatedusing the nominal diameter specified.6.3.2 Tests of connections against sep
20、aration shall be per-formed on an assembled mat by placing blocks under adeformed bar in the upper layer and applying the prescribedload upon the bar in the lower layer.7.Size,Dimensions,and Tolerances7.1 Size and Spacing DimensionsThe sizes,spacings,dimensions,and arrangement of the bar mats shall
21、conform tothe design specified by the purchaser.Bars shall extend beyondexterior intersections a distance of not less than 1 in.25 mm.The spacing of bars shall average that specified in the design,and the space between individual bars shall not vary more than14in.6 mm from that specified.7.2 Width a
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