1、Designation: A761/A761M 04 (Reapproved 2009)A761/A761M 13American 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 und
2、er the fixed 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 si
3、nce the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope Scope*1.1 This specification covers corrugated steel structural plate, zinc-coated, used in the construction of pipe, pipe-arches, arches,underpasses, and special shapes for
4、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 tunnels.1.2 This specification does not include requirements for bedding, backfill, or the r
5、elationship 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 and backfill, manufacture in the plant, and care in the installation. The purchaser must corr
6、elatethe 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 installation procedures are described in PracticesA796/A796M and A807/A807M.1.3 This specifica
7、tion 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. The values stated in either SI units or inch-pound units are to be regarded separately asstandard. The values stated in each system may not be exact
8、equivalents; therefore, each system shall be used independently ofthe other. Combining values from the two systems may result in non-conformance with the standard. SI units are shown in bracketsin the text, but they are the applicable values when the material is ordered to A761M.1.4 This specificati
9、on 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 Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA90/A90M T
10、est 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 Coating (Hot-Dip) on Iron and Steel HardwareA307 Specification for Carbon Steel
11、 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 ksi Minimum Tensile Strength,General UseA563 Specification for Carbon and Alloy
12、 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 Coatings on Steel by X-Ray FluorescenceA780 Practice for Repair of Damaged and Unco
13、ated Areas of Hot-Dip Galvanized Coatings1 This specification is under the jurisdiction ofASTM Committee A05 on Metallic-Coated Iron and Steel Productsand is the direct responsibility of Subcommittee A05.17on Corrugated Steel Pipe Specifications.Current edition approved Nov. 1, 2009June 1, 2013. Pub
14、lished January 2010August 2013. Originally approved in 1979. Last previous edition approved in 20042009 asA761 04.A761/A761M 04 (2009). DOI: 10.1520/A0761_A0761M-04R09.10.1520/A0761_A0761M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serv
15、iceastm.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 indication of what changes have been made to the previous version.
16、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 considered the official document.*A Summary of Changes section a
17、ppears 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 Arches for Storm and Sanitary Sewersand Other Buried ApplicationsA8
18、07/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 Mechanically Deposited on Iron and SteelE29 Practice for Using Signific
19、ant 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 Externally Threaded Metric Fasteners (Metric) (Withdrawn 2012)32.2 ANSI
20、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:5Standard Specifications for Highway Bridges, Division ILRFD Bridge Design Specifications3. Terminology3.1 DefinitionsSee
21、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 between the footings on which it rests.3.2.2 box culvert, na rectangular box with a long-radi
22、us crown and short radius corners, and having either a full invert orfootings.3.2.3 fabricator, nthe producer of the components for the finished product.3.2.4 flat plate, nsheet or plate used to fabricate structural plate.3.2.5 manufacturer, nthe producer of the flat plate and accessories.3.2.6 pipe
23、, na conduit having full circular shape; also, in a general context, all structure shapes covered by this specification.3.2.7 pipe-arch, nan arch shape with an approximate semicircular crown, small-radius, corners, and large-radius invert.3.2.8 pipe, horizontal ellipse, nan elliptically shaped pipe
24、with the horizontal diameter approximately 25 % greater than thenominal diameter.3.2.9 pipe, vertically elongated, nan elliptically shaped pipe with the vertical diameter up to 10 % greater than the nominaldiameter.3.2.10 purchaser, nthe person or agency that purchases the finished pipe structure.3.
25、2.11 special shape, na shape, other than described elsewhere in this section, suitable for fabrication with structural plate.3.2.12 structural plate, na corrugated and curved plate which is field assembled with other structural plates to form therequired structure.3.2.13 vehicular underpass, na high
26、 arch shape with an approximate semicircular crown, large-radius sides, small-radiuscorners between sides and invert, and large-radius invert.4. Ordering Information4.1 Orders for material under this specification shall include the following information as necessary to adequately describe thedesired
27、 product:4.1.1 Name of material (corrugated steel structural plate and accessories),4.1.2 Description 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 or A761M for SI units.4.1.5 Dimensions of structure (diameter or span an
28、d rise, and length, and so forth) (see 8.2 and Note 76),4.1.6 Thickness of plate (see 8.1), and for the 6 by 2-in. 150 by 50-mm corrugation, the type of steel in accordance with 5.1.3and Table 1,4.1.7 Description of corrugations (see 6.2),3 The last approved version of this historical standard is re
29、ferenced on www.astm.org.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.5 Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.A761/A761M 1324.
30、1.8 End treatment (bevel, skew, grade or slope corrections, or other special provision if required by the project plans orspecifications),4.1.9 Seam bolt size and number per corrugation, if different than the minimums specified (see 6.3 and Table 2 and Table 3),4.1.10 Special requirements (including
31、 reinforcement locations, shapes, and thicknesses), if required, and4.1.11 Certification, if required (see 12.1).NOTE 1Typical ordering descriptions are as follows: (1) Structural plates and fasteners for two corrugated steel structural plate pipes, in accordancewith ASTM A761 , 180-in. diameter, 0.
32、168-in. plate thickness, 6 by 2-in. corrugations, each 140-ft nominal centerline length with end treatmentas shown on plans; (2) Structural plates and fasteners for one corrugated steel structural plate pipe-arch, in accordance with ASTM A761M ,3860-mm span by 2460-mm rise, 5.54-mm plate thickness,
33、150 by 50-mm corrugations, 27.0-m nominal centerline length with square ends, longitudinalseams with four M20 bolts per corrugation.5. Materials5.1 Flat Plate:5.1.1 ManufactureThe base steel shall be made by any of the following processes: open-hearth, basic-oxygen, orelectric-furnace.5.1.2 Chemical
34、 CompositionThe base metal heat analysis shall conform to the chemical requirements of Table 4. Therequirements of this specification shall be met in continuous mass production during which the manufacturer has made analysisof individual heats so as to ensure that material is controlled within the s
35、pecified limits.5.1.3 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 corrugation, either Type 33 or Type 38 must be specified.NOTE 2The properties given in Table 1 for the f
36、lat plate normally provide the minimum yield strength of 33 ksi 230 MPa for Type 33 material andTABLE 1 Mechanical Requirements for Flat PlateACorrugation Size Yield StrengthB , min, Tensile StrengthB , min, Elongation in 2 in. 50in. mm ksi MPa ksi MPa mm,C min, %6 by 2 150 by 50Type 33 28.0 19042.0
37、Type 38 33.0 22545.015 by 512 380 by 140and 16 by 6 400 by 15040.0 27555.015 by 5 1/2 380 by 140,16 by 6 400 by 150, and20 by 9 1/2 500 by 23740.0 27555.0ATo determine conformance with this specification, round each value for tensile strength and for yield strength to the nearest 0.1 ksi 1 MPa and e
38、ach value for elongationto the nearest 1 %, both in accordance with the rounding 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 the coatingfrom the ends of the s
39、pecimen contacting the grips of the tension testing machine.CElongation requirement does not apply to material tested after corrugating.TABLE 2 Bolt and Nut RequirementsBoltsA NutsA761 (in.)General dimensionsB ANSI B18.2.1 Heavy ANSI B18.2.2 HeavyHex HexSeam bolts and nutsC A449 A563 Grade CAnchorag
40、e bolts and nuts A307 A563 Grade AZinc coating A153/A153M or B695,Class 55A153/A153M or B695,Class 55Nominal diameter, min, in.D 34 34Nominal diameter, min, in.D 3/4 3/4A761M mmGeneral dimensionsB ANSI B18.2.3.4M ANSI B18.2.4.6MHeavy Hex Heavy HexSeam bolts and nutsC F568M Class 8.8 A563M Class 12An
41、chorage bolts and nuts F568M Class 4.6 A563M Class 5Zinc coating A153 or B695,Class 55A153/A153M or B695,Class 55Nominal diameter, min, M20 M20metric sizeDABolts with a special hemispherical base under the head are only available in inchsizes. They are also intended for use with metric plate.BSee 5.
42、4.1 for requirements for bolt and nut bearing surfaces.CBolts and nuts also used for connecting arch plates to bearings and structuralreinforcement to structural plates.DBolt size of 78 in. or 1 in. M22, M24, or M27 shall be furnished when specifiedin the order (see 5.4 and Note 4).A761/A761M 13338
43、ksi 265 MPa for Type 38 material (used in structural design for pipe with 6 by 2-in. 150 by 50-mm corrugations), or 44 ksi 300 MPa (used instructural design for pipe with 15 by 512-in. 380 by 140-mm and 16 by 6-in. 400 by 150-mm corrugations), or 42 ksi 290 MPa (used in structuraldesign for pipe wit
44、h 20 by 912-in. 500 by 237-mm corrugations) after the plate is corrugated.5.2 Bearings for ArchesWhen specified, metal bearings for arches shall be cold-formed channels made from flat plate materialconforming to 5.1, and not less than 0.188 in. 4.78 mm in specified thickness.5.3 Members for Structur
45、al 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 5.1.NOTE 3When used, steel transverse structural reinforcing members
46、are part of long span or box corrugated steel structural plate structures. Membersof these types of structures can be designed using Practice A796/A796M. The structural design of long-span structures is given in AASHTO StandardSpecifications for Highway Bridges, Division I, Section 12.6.LRFD Bridge
47、Design Specifications, Section 12.8. The structural design of beams is underdevelopment by AASHTO.5.4 Assembly FastenersExcept as provided in 5.4.1, bolts and nuts shall conform to the requirements specified in Table 2(Note 4). Bolts shall have sufficient length to provide at least “full nut” engage
48、ment when tightened in place. The number of boltsfurnished shall be 2 % in excess of the theoretical number required to erect the structure or structures.5.4.1 Bolts and nuts for use with 6 by 2-in. 150 by 50-mm and 16 by 6in.6-in. 400 by 150mm150-mm corrugations shallhave the bearing surface of bot
49、h bolt and nut shaped to a 1-in. 25-mm radius spherical surface, or shall be standard-type boltsand nuts with special washers providing comparable bearing surface. Bolts and nuts for use with 15 by 512-in. 380 by 140-mmand 20 by 912-in. 500 by 237-mm corrugations shall have either standard bearing surfaces or bearing surfaces shaped to a 1in.25mm1-in. 25-mm spherical radius.NOTE 4The purchaser should determine the appropriate bolt size and number of bolts per cor
