1、Designation: A760/A760M 10A760/A760M 13 American Association State Highwayand Transportation Officials StandardAASHTO No. M 36/M 36MStandard Specification forCorrugated Steel Pipe, Metallic-Coated for Sewers andDrains1This standard is issued under the fixed designation A760/A760M; the number immedia
2、tely 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 reapproval.This standard has b
3、een approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers corrugated steel pipe intended for use for storm water drainage, underdrains, the construction ofculverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance
4、of sanitary or industrialwastes. The steel sheet used in fabrication of the pipe has a protective metallic coating of zinc (galvanizing), aluminum, 55 %aluminum-zinc alloy, or zinc-5 % aluminum-mischmetal alloy.1.1.1 Steel sheet with zinc and aramid fiber composite coating may be specified for fabri
5、cation of pipe. Pipe made from sheetwith this composite coating is always furnished with an asphalt coating. Therefore, the requirements in this specification shouldbe considered as applying to a semifinished pipe; the finished pipe must include provisions of Specification A849.NOTE 1Pipe fabricated
6、 with zinc and aramid fiber composite coated sheet and asphalt post coating may be used for sanitary sewers and industrialapplications. Petroleum products or similar materials in the sewer effluent may affect the performance of the asphalt coating.1.2 The several different metallic coatings may not
7、provide equal protection of the base metal against corrosion or abrasion inall environments, or both. Some environments may be so severe that none of the metallic coatings included in this specificationwill provide adequate protection. Additional protection for corrugated steel pipe can be provided
8、by use of coatings applied afterfabrication of the pipe as described in Specification A849, or by use of polymer precoated corrugated steel pipe as described inSpecification A762/A762M.1.3 Section 9 is intended to be applied to corrugated steel pipe joints. The several different types of corrugated
9、steel pipe jointsprovide various qualities. This specification is not intended for routine quality control testing or in-field acceptance testing, but isintended to establish performance limits of the pipe joints, as well as the test requirements and test methods for the joints asdescribed herein.1.
10、4 This specification does not include requirements for bedding, backfill, or the relationship between earth cover load and sheetthickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection ofsheet thickness, type of bedding and backfil
11、l, controlled manufacture in the plant, and care in the installation. The installationprocedure is described in Practice A798/A798M.1.5 This specification is applicable to orders in either inch-pound units as A760 or in SI units as A760M. Inch-pound units andSI units are not necessarily equivalent.
12、SI units are shown in brackets in the text for clarity, but they are the applicable values whenthe material is ordered to A760M.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy CoatingsA153/A153M Specificati
13、on for Zinc Coating (Hot-Dip) on Iron and Steel HardwareA307 Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile StrengthA428/A428M Test Method for Weight Mass of Coating on Aluminum-Coated Iron or Steel Articles1 This specification is under the jurisdiction ofASTM Commi
14、ttee A05 on Metallic-Coated Iron and Steel Products and is the direct responsibility of Subcommittee A05.17on Corrugated Steel Pipe Specifications.Current edition approved Sept. 1, 2010Nov. 1, 2013. Published October 2010November 2013. Originally approved in 1979. Last previous edition approved in 2
15、0092010as A760/A760M - 09.A760/A760M - 10. DOI: 10.1520/A0760_A0760M-10.10.1520/A0760_A0760M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Documen
16、t 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 be technically possible to adequately depict all changes accurately, ASTM reco
17、mmends 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1A449 Specific
18、ation 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 Specification for Carbon and Alloy Steel Nuts (Metric)A742/A742M Specification for Steel Sheet, Metallic Coated and Polymer Preco
19、ated for Corrugated Steel PipeA762/A762M Specification for Corrugated Steel Pipe, Polymer Precoated for Sewers and DrainsA780 Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized CoatingsA796/A796M Practice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, and Arches fo
20、r Storm and Sanitary Sewersand Other Buried ApplicationsA798/A798M Practice for Installing Factory-Made Corrugated Steel Pipe for Sewers and Other ApplicationsA849 Specification for Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage PipeA885/A885M Specification for S
21、teel Sheet, Zinc andAramid Fiber Composite Coated for Corrugated Steel Sewer, Culvert, andUnderdrain Pipe (Withdrawn 2006)3A929/A929M Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process for Corrugated Steel PipeB633 Specification for Electrodeposited Coatings of Zinc on Iron and St
22、eelB695 Specification for Coatings of Zinc Mechanically Deposited on Iron and SteelC1619 Specification for Elastomeric Seals for Joining Concrete StructuresD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberF568M Specification for Carbon and Alloy Steel Externally Threaded M
23、etric Fasteners (Metric) (Withdrawn 2012)32.2 AASHTO Standards:4T241 Test for Helical Continuous Welded Seam Corrugated Steel PipeT249 Test for Helical Lock Seam Corrugated Pipe3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 fabricatorthe producer of the pipe.3.1.2 manufacture
24、rthe producer of the sheet.3.1.3 minimized coating structurea coating characterized by a finer metallurgical coating structure obtained by a treatmentdesigned to restrict the formation of the normal coarse-grain structure formed during solidification of the Zn-5 Al-MM alloycoating.3.1.4 purchaserthe
25、 purchaser of the finished product.3.1.5 regular coating structurethe normal coating structure resulting from unrestricted grain growth during normalsolidification of the Zn-5 Al-MM alloy coating.3.2 Abbreviations:3.2.1 55 Al-Zn55 % aluminum-zinc.3.2.2 MMmischmetal.3.2.3 Zn-5 Al-MMzinc-5 % aluminum-
26、mischmetal.4. Classification4.1 The corrugated steel pipe covered by this specification is classified as follows:4.1.1 Type IThis pipe shall have a full circular cross section, with a single thickness of corrugated sheet, fabricated withannular (circumferential) or helical corrugations.4.1.2 Type IA
27、This pipe shall have a full circular cross section, with an outer shell of corrugated sheet and an inner liner ofsmooth (uncorrugated) sheet, fabricated with helical corrugations and lock seams.4.1.3 Type IRThis pipe shall have a full circular cross section with a single thickness of smooth sheet, f
28、abricated with helicalribs projecting outwardly.4.1.4 Type ISThis pipe shall have a full circular cross section with a single thickness of smooth sheet, fabricated with helicalribs projecting outwardly, and shall also have metallic-coated steel inserts placed in the ribs so that the inside surface o
29、f the pipeis essentially smooth.4.1.5 Type IIThis pipe shall be a Type I pipe which has been reformed into a pipe-arch, having an approximately flat bottom.4.1.6 Type IIAThis pipe shall be a Type IA pipe which has been reformed into a pipe-arch, having an approximately flatbottom.3 The last approved
30、 version of this historical standard is referenced on www.astm.org.4 Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,http:/www.transportation.org.A760/A760M 1324.1.7 Type IIRThis pipe shall be a Type
31、IR pipe which has been reformed into a pipe-arch, having an approximately flatbottom.4.1.8 Type IISThis pipe shall be a Type IS pipe which has been reformed into a pipe-arch, having an approximately flatbottom.4.1.9 Type IIIThis pipe, intended for use as underdrains or for underground disposal of wa
32、ter, shall be a Type I pipe whichhas been perforated to permit the inflow or outflow of water.4.1.10 Type IIIAThis pipe, intended for use as underdrains, shall consist of a semicircular cross section, having a smooth(uncorrugated) bottom with a corrugated top shield.4.2 Perforations in Type III pipe
33、 are included in three classes as described in 8.3.2.4.3 Zn-5 Al-MM alloy-coated material is available in two coating classes, or structures, as follows:4.3.1 Class AMinimized coating structure.4.3.2 Class BRegular coating structure.5. Ordering Information5.1 Orders for material to this specificatio
34、n shall include the following information as necessary, to adequately describe thedesired product.5.1.1 Name of material (corrugated steel pipe),5.1.2 Type of metallic coating (zinc, aluminum, 55 Al-Zn alloy, Zn-5 Al-MM alloy, or zinc and aramid fiber composite coatingalloy (see 6.1).5.1.2.1 For Zn-
35、5A1-MM coating, the class coating structure (Class A minimized, etc.) (4.3).5.1.3 ASTM designation and year of issue, as A760-_ for inch-pound units or as A760M-_ for SI units.5.1.4 Type of pipe (4.1),5.1.5 Diameter of circular pipe (Table 1), or span and rise of pipe-arch section (Tables 2-9),5.1.6
36、 Length, either total length or length of each piece and number of pieces,5.1.7 Description of corrugations (7.2),TABLE 1 Pipe SizesNominalInsideDiameterCorrugation SizesA Ribbed PipeMinimumOutsideCircumferenceBin. mm 112 by 14 in.38 by 6.5 mm 223 by 12 in.68 by 13 mm 3 by 1 in.75 by 25 mm 5 by 1 in
37、.125 by 25 mm 34 by 34 by 712 in.19 by 19 by 190 mm 34 by 1 by 1112 in.19 by 25 by 292 mm 34 by 1 by 812 in.19 by 25 by 216 mm in. mm4 100 X 11.4 2646 150 X 17.7 4418 200 X 24.0 59810 250 X 30.2 75512 300 X X 36.5 91215 375 X X XC 46.0 114818 450 X X X X X 55.4 138321 500 X X X X 64.8 162024 600 X X
38、 X X 74.2 185427 675 X X X X 83.6 209130 750 X X X X 93.1 248333 825 X X X X 102.5 256136 900 X X X X X X 111.9 279742 1050 X X X X X X 130.8 326948 1200 X X X X X X 149.6 373954 1350 X X X X X X 168.4 420960 1500 X X X X X X 187.0 467566 1650 X X X X X X 205.7 514272 1800 X X X X X X 224.3 560978 1
39、950 X X X X X X 243.0 607584 2100 X X X X X X 261.7 654290 2250 X X X X X 280.3 700896 2400 X X X X X 299.0 7475102 2550 X X X X X 317.6 7941108 2700 X X X X X 336.3 8408114 2850 X X X X 355.0 8874120 3000 X X X X 373.6 9341126 3150 X X X 392.3 9807132 3300 X X X 410.9 10274138 3450 X X X 429.6 1074
40、0144 3600 X X X 448.3 11207AAn“ X” indicates standard corrugation sizes for each nominal diameter of pipe.BMeasured in valley of annular corrugations. Not applicable to helically corrugated pipe.CAdditional size for Type IS pipe.A760/A760M 1335.1.8 Sheet thickness (8.1.2),5.1.9 For Type I and Type I
41、I pipe, the pipe fabrication method, whether with annular corrugations or helical corrugations (see7.1.1),NOTE 1Pipe with annular corrugations with spot welded or riveted seams is designed by different criteria compared to pipe with helical corrugations.Pipe with annular corrugations must consider s
42、eam strength. Therefore, consideration of the method of fabrication is important when pipe is installedunder certain conditions of loading.5.1.10 ForTypes IS and IIS pipe, the type of insert required, whether from metallic coated steel sheet or from polymer-precoatedmetallic-coated steel sheet (see
43、6.6 and 8.1.2).NOTE 2Aluminized steel Type 2 inserts are not available with a polymer coating5.1.11 When zinc and aramid fiber composite coated sheet is used for fabrication of pipe, the type of asphalt coating (1.1.1 and8.5),NOTE 3See Specification A849 for additional ordering information appropria
44、te to post-coatings on pipe.5.1.11 Joining systems, including the type of joint from 9.2 and gasket, if required (If no joining system is specified, thefabricator shall select a soil tight joining system.),5.1.12 For Type III pipe, class of perforations, if other than Class 1 (8.3.2),5.1.13 Certific
45、ation, if required (14.1), and5.1.14 Special requirements.TABLE 2 Pipe Arch Requirements223 by 12-in. Corrugations(A760)Pipe ArchSize, in.EquivalentDiameter,in.Span,Ain.Rise,Ain.MinimumCornerRadius, in.MaximumB,B in.17 by 13 15 17 13 3 51421 by 15 18 21 15 3 624 by 18 21 24 18 3 71428 by 20 24 28 20
46、 3 835 by 24 30 35 24 3 91242 by 29 36 42 29 312 101249 by 33 42 49 33 4 111257 by 38 48 57 38 5 131264 by 43 54 64 43 6 1571 by 47 60 71 47 7 161277 by 52 66 77 52 8 1883 by 57 72 83 57 9 20A A tolerance of 1 in. or 2 % of equivalent diameter, whichever is greater, ispermissible in span and rise.B
47、B is defined as the vertical dimension from a horizontal line across the widestportion of the arch to the lowest portion of the base.TABLE 3 Pipe Arch Requirements68 by 13-mmCorrugations A760MPipe ArchSize, mmEquivalentDiameter,mmSpan,AmmRise,AmmMinimumCornerRadius, mmMaximumB,B mm430 by 330 375 430
48、 330 75 135530 by 380 450 530 380 75 155610 by 460 525 610 460 75 185710 by 510 600 710 510 75 205780 by 560 675 780 560 75 225885 by 610 750 870 630 75 240970 by 690 825 970 690 75 2551060 by 740 900 1060 740 90 2651240 by 840 1050 1240 840 100 2901440 by 970 1200 1440 970 130 3451620 by 1100 1350
49、1620 1100 155 3801800 by 1200 1500 1800 1200 180 4201950 by 1320 1650 1950 1320 205 4602100 by 1450 1800 2100 1450 230 510A A tolerance of 25 mm or 2 % of equivalent diameter, whichever is greater, ispermissible in span and rise.B B is defined as the vertical dimension from a horizontal line across the widestportion of the arch to the lowest portion of the base.A760/A760M 1346. Materials and Manufacture6.1 Steel Sheet for PipeAll pipe fabricated under this specification shall be formed from zinc-co
