1、Designation: A761/A761M 13A761/A761M 13a 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 Department of Defense.1. 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 field assembly. Approp
4、riate 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 relationship between ea
5、rth 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 correlatethe preceding fac
6、tors 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 specification is applicable to
7、orders in either inch-pound units (as A761) or SI units (as A761M). The values stated ineither SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exactequivalents; therefore, each system shall be used independently of the other. Combin
8、ing values from the two systems may resultin non-conformance with the standard. Inch-pound units and SI units are not necessarily equivalent. SI units are shown in bracketsin the text, but they are the applicable values when the material is ordered to A761M.1.4 This specification references notes an
9、d 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 Test Method for Weight
10、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 Bolts, Studs, and Thr
11、eaded 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 Steel NutsA563M Speci
12、fication 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 Uncoated Areas of Hot-Dip
13、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 June 1, 2013Nov. 1, 2013. Published August 2013Nove
14、mber 2013. Originally approved in 1979. Last previous edition approved in 20092013as A761/A761M 04 (2009).A761/A761M 13. DOI: 10.1520/A0761_A0761M-13.10.1520/A0761_A0761M-13A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For
15、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. Becauseit may not
16、 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 appears at the end
17、 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 ApplicationsA807/A807M Practice
18、 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 Significant Digits in Tes
19、t 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 Standards:4B18.2.
20、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 SpecificationsStandard Specifications for Highway Bridges, Division I3. Terminology3.1 DefinitionsSee Terminology A902
21、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-radius crown and shor
22、t 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, na conduit havi
23、ng 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 with the horizont
24、al 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.3.2.11 special shap
25、e, 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 arch shape with
26、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 product:4.1.1 Na
27、me 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 and rise, and lengt
28、h, and so forth) (see 8.2 and Note 67),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 referenced on www.a
29、stm.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 13a24.1.8 End treatmen
30、t (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 reinforcement l
31、ocations, 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, 0.168-in. plate th
32、ickness, 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, 150 by 50-mm cor
33、rugations, 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 CompositionThe
34、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 specified limits.
35、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 flat plate normal
36、ly provide the following minimum yield strength of strengths after the plate iscorrugated: 33 ksi 230 MPa for Type 33 material and 38 ksi 265 MPa for Type 38 material (used in structural design for pipe with 6 by 2-in. 150by 50-mm corrugations), or corrugations; 44 ksi 300 MPa (used in structural de
37、sign for pipe with for 15 by 512-in. 380 by 140-mm and 16 by 6-in.400 by 150-mm corrugations), orcorrugations; and 42 ksi 290 MPa (used in structural design for pipe with 20 by 9 12-in. 500 by 237-mmcorrugations) after the plate is corrugated.237mm corrugations. These yield strengths are used in the
38、 structural design of the pipe.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 Structural ReinforcementSteel members for circumfer
39、ential 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 are part of long span or box corrugated ste
40、el structural plate structures. Membersof these types of structures can be designed using PracticeSteel structural members are often used to reinforce long span structural plate structures orstructural plate box structures. The structural design requirements for long span structural plate structures
41、 are established in AASHTO LRFDA796/A796M. Bridge Design Specifications, Section 12.8, and in AASHTO Standard Specifications for Highway Bridges, Division I, Section 12.7. Thestructural design of long-span structures is givenrequirements for structural plate box structures are established in AASHTO
42、LRFD Bridge DesignSpecifications, Section 12.8. The structural design of beams is under development by AASHTO. 12.9, and in AASHTO Standard Specifications forHighway Bridges, Division I, Section 12.8.5.4 Assembly FastenersExcept as provided in 5.4.1, bolts and nuts shall conform to the requirements
43、specified in Table 2(Note 4). Bolts shall have sufficient length to provide at least “full nut” engagement 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.
44、 150 by 50-mm and 16 by 6-in.6in. 400 by 150-mm150mm corrugations shallhave the bearing surface of both 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
45、5 12-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 1-in.25-mm1in. 25mm spherical radius.TABLE 1 Mechanical Requirements for Flat PlateACorrugation Size Yield StrengthB , min, Tensile StrengthB , min, Elongati
46、on in 2 in. 50in. mm ksi MPa ksi MPa mm,C min, %6 by 2 150 by 50Type 33 28.0 190 42.0 290 25Type 38 33.0 225 45.0 310 2515 by 5 1/2 380 by 140,16 by 6 400 by 150, and20 by 9 1/2 500 by 23740.0 275 55.0 380 2515 by 512 380 by 140and 16 by 6 400 by 15040.0 275 55.0 380 25ATo determine conformance with
47、 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 rounding method of Practice E29.BYield strength and tensile strength are based on thickness of the base metal. I
48、f tests are made after coating, determine the base metal thickness after stripping the coatingfrom the ends of the specimen contacting the grips of the tension testing machine.CElongation requirement does not apply to material tested after corrugating.A761/A761M 13a3NOTE 4The purchaser should determ
49、ine the appropriate bolt size and number of bolts per corrugation for longitudinal seams in accordance with thedesign criteria in Practice A796/A796M or other appropriate guidelines. Bolts of larger diameter than specified in Table 2 may be required with thickerplates.5.5 Head Wall and Bearing AnchorageBolts and nuts for head wall anchorage and for anchoring arch bearings to foundationsshall be fabricated as shown on the plans and shall conform to the require
