1、Designation: A761/A761M 04 (Reapproved 2009)American Association State Highway and TransportationOfficials StandardAASHTO No. M 167/M 167 MStandard Specification forCorrugated Steel Structural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches1This standard is issued under the fixed
2、designation A761/A761M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last
3、revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers corrugated steel structuralplate, zinc-coated, used in the construction of pipe, pipe-arches, arches, underpasses, and special shapes for field assem-bly. App
4、ropriate fasteners and accessory materials are alsodescribed. The pipe, arches, and other shapes are generallyused for drainage purposes, pedestrian and vehicular under-passes, and utility tunnels.1.2 This specification does not include requirements forbedding, backfill, or the relationship between
5、earth cover loadand plate thickness of the pipe. Experience has shown that thesuccessful performance of this product depends upon theproper selection of plate thickness, type of bedding andbackfill, manufacture in the plant, and care in the installation.The purchaser must correlate the preceding fac
6、tors and also thecorrosion and abrasion requirements of the field installationwith the plate thickness. The structural design of corrugatedsteel structural plate pipe and the proper installation proceduresare described in Practices A796/A796M and A807/A807M.1.3 This specification is applicable to or
7、ders in eitherinch-pound units (as A761) or SI units (as A761M). Inch-pound units and SI units are not necessarily equivalent. SI unitsare shown in brackets in the text, but they are the applicablevalues when the material is ordered to A761M.1.4 This specification references notes and footnotes whic
8、hprovide explanatory material. These notes and footnotes (ex-cluding those in tables and figures) shall not be considered asrequirements of this specification.2. Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA90/A90M Test Method for Weight Mass of Coating
9、onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA123/A123M Specification for Zinc (Hot-Dip Galvanized)Coatings on Iron and Steel ProductsA153/A153M Specification for Zinc Coating (Hot-Dip) onIron and Steel HardwareA307 Specification for Carbon Steel Bolts and Studs, 60000 PSI Tensile Stren
10、gthA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA449 Specification for Hex Cap Screws, Bolts and Studs,Steel, Heat Treated, 120/105/90 ksi Minimum TensileStrength, General UseA563 Specification for Carbon and Alloy Steel NutsA563M Specification for Carbon and Alloy Steel
11、Nuts(Metric)A751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA754/A754M Test Method for Coating Weight (Mass) ofMetallic Coatings on Steel by X-Ray FluorescenceA780 Practice for Repair of Damaged and Uncoated Areasof Hot-Dip Galvanized CoatingsA796/A796M Practice
12、 for Structural Design of CorrugatedSteel Pipe, Pipe-Arches, and Arches for Storm and Sani-tary Sewers and Other Buried ApplicationsA807/A807M Practice for Installing Corrugated SteelStructural Plate Pipe for Sewers and Other ApplicationsA902 Terminology Relating to Metallic Coated Steel Prod-uctsB6
13、 Specification for ZincB695 Specification for Coatings of Zinc Mechanically De-posited on Iron and SteelE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE376 Practice for Measuring Coating Thickness byMagnetic-Field or Eddy-Current (Electromagnetic) E
14、xami-nation MethodsF568M Specification for Carbon and Alloy Steel ExternallyThreaded Metric Fasteners (Metric)1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.17 on Corrugated Steel Pipe
15、Specifications.Current edition approved Nov. 1, 2009. Published January 2010. Originallyapproved in 1979. Last previous edition approved in 2004 as A761 04. DOI:10.1520/A0761_A0761M-04R09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service
16、astm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 ANSI Standards:3B18.2.1 Square and Hex Bolts and Screw
17、s, Inch SeriesB18.2.2 Square and Hex NutsB18.2.3.6M Bolts, Metric Heavy HexB18.2.4.6M Hex Nuts, Heavy, Metric2.3 AASHTO Standard:4Standard Specifications for Highway Bridges, Division I3. Terminology3.1 DefinitionsSee Terminology A902 for definitions ofgeneral terminology relating to metallic-coated
18、 steel products.3.2 Definitions of Terms Specific to This Standard:3.2.1 arch, na part circle shape spanning an open invertbetween the footings on which it rests.3.2.2 box culvert, na rectangular box with a long-radiuscrown and short radius corners, and having either a full invertor footings.3.2.3 f
19、abricator, nthe producer of the components for thefinished product.3.2.4 flat plate, nsheet or plate used to fabricate structuralplate.3.2.5 manufacturer, nthe producer of the flat plate andaccessories.3.2.6 pipe, na conduit having full circular shape; also, ina general context, all structure shapes
20、 covered by this specifi-cation.3.2.7 pipe-arch, nan arch shape with an approximatesemicircular crown, small-radius, corners, and large-radiusinvert.3.2.8 pipe, horizontal ellipse, nan elliptically shaped pipewith the horizontal diameter approximately 25 % greater thanthe nominal diameter.3.2.9 pipe
21、, vertically elongated, nan elliptically shapedpipe with the vertical diameter up to 10 % greater than thenominal diameter.3.2.10 purchaser, nthe person or agency that purchasesthe finished pipe structure.3.2.11 special shape, na shape, other than describedelsewhere in this section, suitable for fab
22、rication with struc-tural plate.3.2.12 structural plate, na corrugated and curved platewhich is field assembled with other structural plates to form therequired structure.3.2.13 vehicular underpass, na high arch shape with anapproximate semicircular crown, large-radius sides, small-radius corners be
23、tween sides and invert, and large-radiusinvert.4. Ordering Information4.1 Orders for material under this specification shall includethe following information as necessary to adequately describethe desired product:4.1.1 Name of material (corrugated steel structural plate andaccessories),4.1.2 Descrip
24、tion of structure (see Section 3),4.1.3 Number of structures,4.1.4 ASTM designation and year of issue, asA761 for inch-pound units orA761M for SI units.4.1.5 Dimensions of structure (diameter or span and rise,and length, and so forth) (see 8.2 and Note 7),4.1.6 Thickness of plate (see 8.1), and for
25、the 6 by 2-in. 150by 50-mm corrugation, the type of steel in accordance with5.1.3 and Table 1,4.1.7 Description of corrugations (see 6.2),4.1.8 End treatment (bevel, skew, grade or slope correc-tions, or other special provision if required by the project plansor specifications),4.1.9 Seam bolt size
26、and number per corrugation, if differentthan the minimums specified (see 6.3 and Table 2 and Table 3),4.1.10 Special requirements (including reinforcement loca-tions, shapes, and thicknesses), if required, and4.1.11 Certification, if required (see 12.1).NOTE 1Typical ordering descriptions are as fol
27、lows: (1) Structuralplates and fasteners for two corrugated steel structural plate pipes, inaccordance with ASTM A761 , 180-in. diameter, 0.168-in. platethickness, 6 by 2-in. corrugations, each 140-ft nominal centerline lengthwith end treatment as shown on plans; (2) Structural plates and fastenersf
28、or one corrugated steel structural plate pipe-arch, in accordance withASTM A761M , 3860-mm span by 2460-mm rise, 5.54-mm platethickness, 150 by 50-mm corrugations, 27.0-m nominal centerline lengthwith square ends, longitudinal seams with four M20 bolts per corrugation.5. Materials5.1 Flat Plate:5.1.
29、1 ManufactureThe base steel shall be made by any ofthe following processes: open-hearth, basic-oxygen, orelectric-furnace.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Available from American Association of State Highway and Transportatio
30、nOfficials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.TABLE 1 Mechanical Requirements for Flat PlateACorrugation Size Yield StrengthB, min, Tensile StrengthB, min, Elongation in 2 in. 50in. mm ksi MPa ksi MPa mm,Cmin, %6 by 2 150 by 50Type 33 28.0 190 42.0 290 25Type 38 33.0 2
31、25 45.0 310 2515 by 512 380 by 140and 16 by 6 400 by 15040.0 275 55.0 380 25ATo determine conformance with this specification, round each value for tensile strength and for yield strength to the nearest 0.1 ksi 1 MPa and each value for elongationto the nearest 1 %, both in accordance with the roundi
32、ng method of Practice E29.BYield strength and tensile strength are based on thickness of the base metal. If tests are made after coating, determine the base metal thickness after stripping thecoating from the ends of the specimen contacting the grips of the tension testing machine.CElongation requir
33、ement does not apply to material tested after corrugating.A761/A761M 04 (2009)25.1.2 Chemical CompositionThe base metal heat analysisshall conform to the chemical requirements of Table 4. Therequirements of this specification shall be met in continuousmass production during which the manufacturer ha
34、s madeanalysis of individual heats so as to ensure that material iscontrolled within the specified limits.5.1.3 Mechanical RequirementsThe mechanical proper-ties of the flat plate material prior to corrugating shall conformto the requirements in Table 1. For the 6 by 2-in. 150 by50-mm corrugation, e
35、ither Type 33 or Type 38 must bespecified.NOTE 2The properties given in Table 1 for the flat plate normallyprovide the minimum yield strength of 33 ksi 230 MPa for Type 33material and 38 ksi 265 MPa for Type 38 material (used in structuraldesign for pipe with 6 by 2-in. 150 by 50-mm corrugations), o
36、r 44 ksi300 MPa (used in structural design for pipe with 15 by 512-in. 380 by140-mm and 16 by 6-in. 400 by 150-mm corrugations), after the plateis corrugated.5.2 Bearings for ArchesWhen specified, metal bearingsfor arches shall be cold-formed channels made from flat platematerial conforming to 5.1,
37、and not less than 0.188 in. 4.78mm in specified thickness.5.3 Members for Structural ReinforcementSteel membersfor circumferential or longitudinal stiffeners, or secondarystructural components, shall be fabricated from rolled shapesconforming to Specification A36/A36M, or from flat platematerial con
38、forming to 5.1.NOTE 3When used, steel transverse structural reinforcing membersare part of long span or box corrugated steel structural plate structures.Members of these types of structures can be designed using PracticeA796/A796M. The structural design of long-span structures is given inAASHTO Stan
39、dard Specifications for Highway Bridges, Division I,Section 12.6. The structural design of beams is under development byAASHTO.5.4 Assembly FastenersExcept as provided in 5.4.1, boltsand nuts shall conform to the requirements specified in Table 2(Note 4). Bolts shall have sufficient length to provid
40、e at least“full nut” engagement when tightened in place. The number ofbolts furnished shall be 2 % in excess of the theoretical numberrequired to erect the structure or structures.5.4.1 Bolts and nuts for use with 6 by 2-in. 150 by 50-mmand 16 by 6in. 400 by 150mm corrugations shall have thebearing
41、surface of both bolt and nut shaped to a 1-in. 25-mmradius spherical surface, or shall be standard-type bolts andnuts with special washers providing comparable bearing sur-face. Bolts and nuts for use with 15 by 512-in. 380 by140-mm corrugations shall have either standard bearing sur-faces or bearin
42、g surfaces shaped to a 1in. 25mm sphericalradius.NOTE 4The purchaser should determine the appropriate bolt size andnumber of bolts per corrugation for longitudinal seams in accordance withthe design criteria in Practice A796/A796M or other appropriate guide-lines. Bolts of larger diameter than speci
43、fied in Table 2 may be requiredwith thicker plates.5.5 Head Wall and Bearing AnchorageBolts and nuts forhead wall anchorage and for anchoring arch bearings tofoundations shall be fabricated as shown on the plans and shallconform to the requirements specified in Table 2.6. Fabrication6.1 Structural P
44、latesStructural plates shall be fabricatedfrom flat sheets or plates, corrugated in accordance with 6.2,punched for bolted lap seams in accordance with 6.3, andcurved to the required radius.6.2 Corrugations Corrugations shall form smooth con-tinuous curves and tangents. Corrugations shall form annul
45、arrings (complete or partial) about the axis of the structure. Thedimensions of the corrugations shall be in accordance withTable 5 for the size specified in the order.6.3 Bolt Holes (General)The bolt holes shall be punchedso that all plates having like dimensions, curvature, and samesize and number
46、 of bolts per foot of seam shall be interchange-able. Except as otherwise specified, the location and number ofseam bolt holes shall conform to the requirements of Table 3for the size of bolts indicated in Table 2 (see Note 4). Holesshall be provided as required for connecting headwall anchors,struc
47、tural reinforcement, and miscellaneous attachments.6.3.1 For 6 by 2in. 150 by 52mm corrugations, thediameter of the bolt holes in the longitudinal seams shall notexceed the bolt diameter by more than18 in. 3 mm exceptthose in plate corners. Bolt holes in circumferential seams,including plate corners
48、, shall be round holes with the diameternot exceeding the bolt diameter by more than14 in. 6 mm, orshall be slotted holes with a width equal to the bolt diameterplus18 in. 3 mm and a length equal to the bolt diameter plus38 in. 10 mm.6.3.2 For 15 by 512-in. 380 by 140-mm corrugations, thediameter of
49、 the bolt holes in the longitudinal and circumferen-tial seams shall not exceed the bolt diameter by more than14in. 6 mm. Bolt holes for the attachment of circumferentialreinforcing, where required, shall be slotted with a width notgreater than the bolt diameter plus14 in. 6 mm and a lengthnot greater than the bolt diameter plus12 in. 12 mm.6.3.3 For 16 by 6in. 400 by 150mm corrugations, thediameter of bolt holes in the longitudinal seams shall notTABLE
