1、Designation: A761/A761M 16 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 designation A761/
2、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 revision or reapp
3、roval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 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. Appropriate fa
4、steners and accessory materials are alsodescribed. The pipe, arches, and other shapes are generallyused for drainage purposes, pedestrian and vehicularunderpasses, and utility tunnels.1.2 This specification does not include requirements forbedding, backfill, or the relationship between earth cover l
5、oadand 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 factors and also
6、 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 orders in eithe
7、rinch-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 whichprovide expl
8、anatory 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 onIron and St
9、eel 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, Studs, andThreaded Rod 60 000 PSI Tensile Stre
10、ngthA370 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 (Met-ric)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 Pract
12、ice 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 Steel Struc-tural Plate Pipe for Sewers and Other ApplicationsA902 Terminology Relating to Metallic Coated Steel Prod-u
13、cts1This 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 Specifications.Current edition approved May 1, 2016. Published May 2016. Originallyapproved in 1979. Last p
14、revious edition approved in 2015 as A761/A761M 15.DOI: 10.1520/A0761_A0761M-16.2For 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 o
15、nthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B6 Specification for ZincB695 Specification for Coatings of Zinc Mechanically De-posited on Iron and St
16、eelE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE376 Practice for Measuring Coating Thickness byMagnetic-Field or Eddy-Current (Electromagnetic) Test-ing MethodsF568M Specification for Carbon and Alloy Steel ExternallyThreaded Metric Fasteners (Me
17、tric) (Withdrawn 2012)32.2 ANSI Standards:4B18.2.1 Square and Hex Bolts and Screws, 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:5LRFD Bridge Design Specifications2.4 American Welding Society Standard:6AWS D1.1/D1.1M St
18、ructural Welding Code3. Terminology3.1 DefinitionsSee Terminology A902 for definitions ofgeneral terminology relating to metallic-coated 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.
19、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 circumferential flange connection, na circumferen-tial seam for structural plate that is connected through a flangealong the edge of the plate; circumferential flang
20、es are cold-formed.3.2.4 circumferential reinforcing member, na structuralsection bolted to a structural plate structure, parallel to thecorrugations, to provide additional strength or stiffness.3.2.5 circumferential seam, na connection seam along theedge of the plate parallel to the corrugation.3.2
21、.6 fabricator, nthe producer of the components for thefinished product.3.2.7 flat plate, nsheet or plate used to fabricate structuralplate.3.2.8 longitudinal flange connection, na longitudinalseam for structural plate that is connected through a flangealong the edge of the plate; longitudinal flange
22、s are welded tostructural plate.3.2.9 longitudinal seam, na connection seam along theedge of the plate perpendicular to the corrugation.3.2.10 manufacturer, nthe producer of the flat plate andaccessories.3.2.11 pipe, na conduit having full circular shape; also, ina general context, all structure sha
23、pes covered by this specifi-cation.3.2.12 pipe-arch, nan arch shape with an approximatesemicircular crown, small-radius, corners, and large-radiusinvert.3.2.13 pipe, horizontal ellipse, nan elliptically shapedpipe with the horizontal diameter approximately 25 % greaterthan the nominal diameter.3.2.1
24、4 pipe, vertically elongated, nan elliptically shapedpipe with the vertical diameter up to 10 % greater than thenominal diameter.3.2.15 purchaser, nthe person or agency that purchasesthe finished pipe structure.3.2.16 special shape, na shape, other than describedelsewhere in this section, suitable f
25、or fabrication with struc-tural plate.3.2.17 structural plate, na corrugated and curved platewhich is field assembled with other structural plates to form therequired structure.3.2.18 vehicular underpass, na high arch shape with anapproximate semicircular crown, large-radius sides, small-radius corn
26、ers between sides and invert, and large-radiusinvert.4. Connection Classification4.1 Lapped ConnectionsThe corrugated steel structuralplate shall be fabricated with any of the corrugations in 6.2with bolted lap seams in both circumferential and longitudinaldirections. See Fig. 1.4.2 Flange Connectio
27、nsThe corrugated steel structuralplate shall be fabricated with 15 by 512-in. 380 by 140-mmcorrugations with bolted flange seams in both circumferentialand longitudinal directions, oriented such that after curving, allflanges are on the inside of the structure. See Figs. 2-4. Forarch anchorage plate
28、s, the longitudinal flange along the bottomedge may be omitted and bolt hole patterns furnished the sameas that for structural plate with lapped connections.5. Ordering Information5.1 Orders for material under this specification shall includethe following information as necessary to adequately descr
29、ibethe desired product:5.1.1 Name of material (corrugated steel structural plate andaccessories),5.1.2 Description of structure (see Section 3),5.1.3 Number of structures,5.1.4 ASTM designation and year of issue, asA761 for inch-pound units or A761M for SI units.5.1.5 Type of connections if other th
30、an lapped (see Section4),5.1.6 Dimensions of structure (diameter or span and rise,and length, and so forth) (see 9.2 and Note 7),3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor,
31、 New York, NY 10036.5Available from American Association of State Highway and TransportationOfficials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.6Available from American Welding Society (AWS), 8669 NW 36 St., #130,Miami, FL 33166-6672, http:/www.aws.org.A761/A761M 1625.1.7 Thi
32、ckness of plate (see 9.1), and for the 6 by 2-in. 150by 50-mm corrugation, the type of steel in accordance with6.1.3 and Table 1,5.1.8 Description of corrugations (see 7.2),5.1.9 End treatment (bevel, skew, grade or slopecorrections, or other special provision if required by the projectplans or spec
33、ifications),5.1.10 Seam bolt size and number per corrugation, if differ-ent than the minimums specified (see 7.4 and Tables 2-4),5.1.11 Special requirements (including reinforcementlocations, shapes, and thicknesses), if required, and5.1.12 Certification, if required (see 13.1).NOTE 1Typical orderin
34、g descriptions are as follows: (1) Structuralplates and fasteners for two corrugated steel structural plate pipes withlapped connections, in accordance with ASTM A761 , 180-in.diameter, 0.168-in. plate thickness, 6 by 2-in. corrugations, each 140-ftnominal centerline length with end treatment as sho
35、wn on plans; (2)Structural plates and fasteners for one corrugated steel structural platepipe-arch with lapped connections, in accordance with ASTM A761M , 3860-mm span by 2460-mm rise, 5.54-mm plate thickness, 150 by50-mm corrugations, 27.0-m nominal centerline length with square ends,longitudinal
36、seams with four M20 bolts per corrugation.6. Materials6.1 Flat Plate:6.1.1 ManufactureThe base steel shall be made by any ofthe following processes: open-hearth, basic-oxygen, orelectric-furnace.6.1.2 Chemical CompositionThe base metal heat analysisshall conform to the chemical requirements of Table
37、 6. Therequirements of this specification shall be met in continuousmass production during which the manufacturer has madeanalysis of individual heats so as to ensure that material iscontrolled within the specified limits.FIG. 1 Layout of Structural Plate with Lapped ConnectionsA761/A761M 1636.1.3 M
38、echanical 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, either Type 33 or Type 38 must bespecified.NOTE 2The properties given in Table 1 for the flat plate normallyprovid
39、e the following minimum yield strengths after the plate is corru-gated: 33 ksi 230 MPa for Type 33 material and 38 ksi 265 MPa forType 38 material with 6 by 2-in. 150 by 50-mm corrugations; 44 ksi300 MPa for 15 by 512-in. 380 by 140-mm and 16 by 6-in. 400 by150-mm corrugations; and 42 ksi 290 MPa fo
40、r pipe with 20 by 912-in.500 by 237-mm corrugations. These yield strengths are used in thestructural design of the pipe.6.2 Bearings for ArchesWhen specified, metal bearingsfor arches shall be cold-formed channels made from flat platematerial conforming to 6.1, and not less than 0.188 in.4.78 mm in
41、specified thickness.FIG. 2 Layout of Structural Plate with Flange ConnectionsFIG. 3 Details of Structural Plate with Flange ConnectionsA761/A761M 1646.3 Flange Material for Longitudinal SeamsFlanges forlongitudinal seams of structural plate with flange connectionsshall be fabricated from material co
42、nforming to Table 5.6.4 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 conforming to 6.1.NOTE 3Steel structural
43、members are often used to reinforce long spanstructural plate structures or structural plate box structures. The structuraldesign requirements for long span structural plate structures are estab-lished inAASHTO LRFD Bridge Design Specifications, Section 12.8, andin AASHTO Standard Specifications for
44、 Highway Bridges, Division I,Section 12.7. The structural design requirements for structural plate boxstructures are established in AASHTO LRFD Bridge DesignSpecifications, Section 12.9, and in AASHTO Standard Specifications forHighway Bridges, Division I, Section 12.8.6.5 Assembly FastenersExcept a
45、s provided in 6.5.1, boltsand nuts shall conform to the requirements specified in Table 2(Note 4). Bolts shall have sufficient length to provide 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 s
46、tructure or structures.6.5.1 Bolts and nuts for use with 6 by 2-in. 150 by 50-mm,16 by 6-in. 400 by 150-mm, and 20 by 912-in. 500 by237-mm corrugations shall have the bearing surface of bothbolt and nut shaped to a 1-in. 25-mm radius spherical surface,or shall be standard-type bolts and nuts with sp
47、ecial washersproviding comparable bearing surface. Bolts and nuts for usewith either lapped or flange connections in 15 by 512-in. 380by 140-mm structural plate shall have either standard bearingsurfaces or bearing surfaces shaped to a 1-in. 25-mm spheri-cal radius.NOTE 4The purchaser should determi
48、ne 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 specified in Table 2 may be requiredwith thicker plates.6.6 Head Wall and Bearing Anchor
49、ageBolts 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 2.7. Fabrication7.1 Structural PlatesFor structural plates with lappedconnections, the structural plates shall be fabricated from flatsheets or plates, corrugated in accordance with 7.2, punchedfor bolted lap seams, and curved to the required radius. Forstructural plates with flange connections, the structural pla
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