1、Designation: A761/A761M 13bA761/A761M 15 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 des
2、ignation 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 rev
3、ision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.NotePreviously approved and published information was included and the year date changed on December 11, 2013.1. Scope*1.1 This specification covers corrugated steel structural plate, zinc-coate
4、d, used in the construction of pipe, pipe-arches, arches,underpasses, and special shapes for field assembly. Appropriate fasteners and accessory materials are also described. The pipe,arches, and other shapes are generally used for drainage purposes, pedestrian and vehicular underpasses, and utility
5、 tunnels.1.2 This specification does not include requirements for bedding, backfill, or the relationship between earth cover load and platethickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection ofplate thickness, type of bedding
6、and backfill, manufacture in the plant, and care in the installation. The purchaser must correlatethe preceding factors and also the corrosion and abrasion requirements of the field installation with the plate thickness. Thestructural design of corrugated steel structural plate pipe and the proper i
7、nstallation procedures are described in PracticesA796/A796M and A807/A807M.1.3 This specification is applicable to orders in either inch-pound units (as A761) or SI units (as A761M). Inch-pound units andSI units are not necessarily equivalent. SI units are shown in brackets in the text, but they are
8、 the applicable values when thematerial is ordered to A761M.1.4 This specification references notes and footnotes which provide explanatory material. These notes and footnotes (excludingthose in tables and figures) shall not be considered as requirements of this specification.2. Referenced Documents
9、2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA90/A90M Test Method for Weight Mass of Coating on Iron 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
10、 Coating (Hot-Dip) on Iron and Steel HardwareA307 Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile StrengthA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90
11、 ksi Minimum Tensile Strength,General UseA563 Specification for Carbon and Alloy Steel NutsA563M Specification for Carbon and Alloy Steel Nuts (Metric)A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA754/A754M Test Method for Coating Weight (Mass) of Metallic Coa
12、tings on Steel by X-Ray FluorescenceA780 Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings1 This specification is under the jurisdiction ofASTM Committee A05 on Metallic-Coated Iron and Steel Products and is the direct responsibility of Subcommittee A05.17on Corrugated
13、 Steel Pipe Specifications.Current edition approved Dec. 11, 2013June 1, 2015. Published December 2013June 2015. Originally approved in 1979. Last previous edition approved in 2013 asA761/A761M 13a.13b. DOI: 10.1520/A0761_A0761M-13B.10.1520/A0761_A0761M-15.2 For referencedASTM standards, visit theAS
14、TM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an in
15、dication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be
16、 considered the official document.*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 States1A796/A796M Practice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, and Ar
17、ches for Storm and Sanitary Sewersand Other Buried ApplicationsA807/A807M Practice for Installing Corrugated Steel Structural Plate Pipe for Sewers and Other ApplicationsA902 Terminology Relating to Metallic Coated Steel ProductsB6 Specification for ZincB695 Specification for Coatings of Zinc Mechan
18、ically Deposited on Iron and SteelE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE376 Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Testing MethodsF568M Specification for Carbon and Alloy Steel Externa
19、lly Threaded Metric Fasteners (Metric) (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 So
20、ciety Standard:6AWS D1.1/D1.1M Structural Welding Code3. Terminology3.1 DefinitionsSee Terminology A902 for definitions of general 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 invert betwee
21、n the footings on which it rests.3.2.2 box culvert, na rectangular box with a long-radius crown and short radius corners, and having either a full invert orfootings.3.2.3 circumferential flange connection, na circumferential seam for Type 2 structural plate that is connected through a flangealong th
22、e edge of the plate; circumferential flanges are cold-formed.3.2.4 circumferential reinforcing member, na structural section bolted to a structural plate structure, parallel to thecorrugations, to provide additional strength or stiffness.3.2.5 circumferential seam, na connection seam along the edge
23、of the plate parallel to the corrugation.3.2.6 fabricator, nthe producer of the components for the finished product.3.2.7 flat plate, nsheet or plate used to fabricate structural plate.3.2.8 longitudinal flange connection, na longitudinal seam for Type 2 structural plate that is connected through a
24、flange alongthe edge of the plate; longitudinal flanges are welded to structural plate.3.2.9 longitudinal seam, na connection seam along the edge of the plate perpendicular to the corrugation.3.2.10 manufacturer, nthe producer of the flat plate and accessories.3.2.11 pipe, na conduit having full cir
25、cular shape; also, in a general context, all structure shapes covered by this specification.3.2.12 pipe-arch, nan arch shape with an approximate semicircular crown, small-radius, corners, and large-radius invert.3.2.13 pipe, horizontal ellipse, nan elliptically shaped pipe with the horizontal diamet
26、er approximately 25 % greater than thenominal diameter.3.2.14 pipe, vertically elongated, nan elliptically shaped pipe with the vertical diameter up to 10 % greater than the nominaldiameter.3.2.15 purchaser, nthe person or agency that purchases the finished pipe structure.3.2.16 special shape, na sh
27、ape, other than described elsewhere in this section, suitable for fabrication with structural plate.3.2.17 structural plate, na corrugated and curved plate which is field assembled with other structural plates to form therequired structure.3.2.18 vehicular underpass, na high arch shape with an appro
28、ximate semicircular crown, large-radius sides, small-radiuscorners between sides and invert, and large-radius invert.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New Yor
29、k, NY 10036.5 Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.6 Available from American Welding Society (AWS), 8669 NW 36 St., #130, Miami, FL 33166-6672, http:/www.aws.org.A761/A761M 1524. Classifica
30、tion4.1 Type 1The corrugated steel structural plate shall be fabricated with any of the corrugations in 6.2 with bolted lap seamsin both circumferential and longitudinal directions. See Fig. 1.4.2 Type 2The corrugated steel structural plate shall be fabricated with 15 by 5 12-in. 380 by 140-mm corru
31、gations withbolted flange seams in both circumferential and longitudinal directions, oriented such that after curving, all flanges are on the insideof the structure. See Figs. 2-4. For arch anchorage plates, the longitudinal flange along the bottom edge shall be omitted and bolthole patterns shall b
32、e the same as for Type 1 structural plate.5. Ordering Information5.1 Orders for material under this specification shall include the following information as necessary to adequately describe thedesired product:5.1.1 Name of material (corrugated steel structural plate and accessories),5.1.2 Descriptio
33、n 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.FIG. 1 Type 1 Structural Plate LayoutA761/A761M 1535.1.5 Type of structural plate if other than Type 1 (see Section 4),5.1.6 Dimensions of structure (
34、diameter or span and rise, and length, and so forth) (see 8.29.2 and Note 7),FIG. 2 Type 2 Structural Plate LayoutFIG. 3 Type 2 Structural Plate DetailsA761/A761M 1545.1.7 Thickness of plate (see 8.19.1), and for the 6 by 2-in. 150 by 50-mm corrugation, the type of steel in accordance with5.1.36.1.3
35、 and Table 1,5.1.8 Description of corrugations (see 6.27.2),5.1.9 End treatment (bevel, skew, grade or slope corrections, or other special provision if required by the project plans orspecifications),5.1.10 Seam bolt size and number per corrugation, if different than the minimums specified (see 6.37
36、.4 and Table 2Tables 2-4and Table 3),5.1.11 Special requirements (including reinforcement locations, shapes, and thicknesses), if required, and5.1.12 Certification, if required (see 12.113.1).NOTE 1Typical ordering descriptions are as follows: (1) Structural plates and fasteners for two Type 1 corru
37、gated steel structural plate pipes, inaccordance with ASTM A761 , 180-in. diameter, 0.168-in. plate thickness, 6 by 2-in. corrugations, each 140-ft nominal centerline length with endtreatment as shown on plans; (2) Structural plates and fasteners for one Type 1 corrugated steel structural plate pipe
38、-arch, in accordance with ASTMA761M , 3860-mm span by 2460-mm rise, 5.54-mm plate thickness, 150 by 50-mm corrugations, 27.0-m nominal centerline length with squareends, longitudinal seams with four M20 bolts per corrugation.6. Materials6.1 Flat Plate:6.1.1 ManufactureThe base steel shall be made by
39、 any of the following processes: open-hearth, basic-oxygen, orelectric-furnace.6.1.2 Chemical CompositionThe base metal heat analysis shall conform to the chemical requirements of Table 46. Therequirements of this specification shall be met in continuous mass production during which the manufacturer
40、 has made analysisof individual heats so as to ensure that material is controlled within the specified limits.6.1.3 Mechanical RequirementsThe mechanical properties of the flat plate material prior to corrugating shall conform to therequirements in Table 1. For the 6 by 2-in. 150 by 50-mm corrugatio
41、n, either Type 33 or Type 38 must be specified.NOTE 2The properties given in Table 1 for the flat plate normally provide the following minimum yield strengths after the plate is corrugated: 33ksi 230 MPa for Type 33 material and 38 ksi 265 MPa for Type 38 material with 6 by 2-in. 150 by 50-mm corrug
42、ations; 44 ksi 300 MPa for 15by 512-in. 380 by 140-mm and 16 by 6-in. 400 by 150-mm corrugations; and 42 ksi 290 MPa for pipe with 20 by 9 12-in. 500 by 237-mmcorrugations. These yield strengths are used in the structural design of the pipe.6.2 Bearings for ArchesWhen specified, metal bearings for a
43、rches shall be cold-formed channels made from flat plate materialconforming to 5.16.1, and not less than 0.188 in. 4.78 mm in specified thickness.6.3 Flange Material for Longitudinal SeamsFlanges for longitudinal seams of Type 2 structural plate shall be fabricated frommaterial conforming to Table 5
44、.6.4 Members for Structural ReinforcementSteel members for circumferential or longitudinal stiffeners, or secondary structuralcomponents, shall be fabricated from rolled shapes conforming to Specification A36/A36M, or from flat plate material conformingto 5.16.1.NOTE 3Steel structural members are of
45、ten used to reinforce long span structural plate structures or structural plate box structures. The structuraldesign requirements for long span structural plate structures are established in AASHTO LRFD Bridge Design Specifications, Section 12.8, and inAASHTO Standard Specifications for Highway Brid
46、ges, Division I, Section 12.7. The structural design requirements for structural plate box structuresare established in AASHTO LRFD Bridge Design Specifications, Section 12.9, and in AASHTO Standard Specifications for Highway Bridges, DivisionI, Section 12.8.FIG. 4 Type 2 Structural Plate Showing Fl
47、ange for Longitudinal SeamA761/A761M 1556.5 Assembly FastenersExcept as provided in 5.4.16.5.1, bolts and nuts shall conform to the requirements specified in Table2 (Note 4). Bolts shall have sufficient length to provide at least “full nut” engagement when tightened in place. The number of boltsfurn
48、ished shall be 2 % in excess of the theoretical number required to erect the structure or structures.6.5.1 Bolts and nuts for use with 6 by 2-in. 150 by 50-mm and 16 by 6-in. 400 by 150-mm corrugations shall have thebearing surface of both bolt and nut shaped to a 1-in. 25-mm radius spherical surfac
49、e, or shall be standard-type bolts and nutswith special washers providing comparable bearing surface. Bolts and nuts for use with Type 1 or Type 2 15 by 5 12-in. 380 by140-mm and 20 by 9 12-in. 500 by 237-mm corrugations structural plate shall have either standard bearing surfaces or bearingsurfaces shaped to a 1-in. 25-mm spherical radius.NOTE 4The purchaser should determine the appropriate bolt size and number of bolts per corrugation for longitudinal seams in accordance with thedesign cri
