1、Designation:A761/A761M13A761/A761M13b American Association State Highway and Transportation Officials Standard AASHTO No. M 167/M 167 M Standard Specication for Corrugated Steel Structural Plate, Zinc-Coated, for Field- Bolted Pipe, Pipe-Arches, and Arches 1 This standard is issued under the xed des
2、ignationA761/A761M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval. A superscript epsilon () indicates an editorial change since the last revi
3、sion 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 specication covers corrugated steel structural plate, zinc-coat
4、ed, used in the construction of pipe, pipe-arches, arches, underpasses, and special shapes for eld 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 utilit
5、y tunnels. 1.2 Thisspecicationdoesnotincluderequirementsforbedding,backll,ortherelationshipbetweenearthcoverloadandplate thickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection of plate thickness, type of bedding and backll, manuf
6、acture in the plant, and care in the installation. The purchaser must correlate the preceding factors and also the corrosion and abrasion requirements of the eld installation with the plate thickness. The structural design of corrugated steel structural plate pipe and the proper installation procedu
7、res are described in Practices A796/A796M and A807/A807M. 1.3 This specication is applicable to orders in either inch-pound units (as A761) or SI units (as A761M). The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may
8、 not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result innon-conformancewiththestandard.Inch-poundunitsandSIunitsarenotnecessarilyequivalent.SIunitsareshowninbrackets in the text, but they are the applicable values
9、 when the material is ordered to A761M. 1.4 This specication references notes and footnotes which provide explanatory material.These notes and footnotes (excluding those in tables and gures) shall not be considered as requirements of this specication. 2. Referenced Documents 2.1 ASTM Standards: 2 A3
10、6/A36MSpecication for Carbon Structural Steel A90/A90MTest Method for Weight Mass of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings A123/A123MSpecication for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products A153/A153MSpecication for Zinc Coating (Hot-Dip) on Iron an
11、d Steel Hardware A307Specication for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength A370Test Methods and Denitions for Mechanical Testing of Steel Products A449Specication for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, Gene
12、ral Use A563Specication for Carbon and Alloy Steel Nuts A563MSpecication for Carbon and Alloy Steel Nuts (Metric) A751Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products A754/A754MTest Method for Coating Weight (Mass) of Metallic Coatings on Steel by X-Ray Fluorescence 1
13、 ThisspecicationisunderthejurisdictionofASTMCommitteeA05onMetallic-CoatedIronandSteelProductsandisthedirectresponsibilityofSubcommitteeA05.17 on Corrugated Steel Pipe Specications. Current edition approved June 1, 2013Dec. 11, 2013. Published August 2013December 2013. Originally approved in 1979. La
14、st previous edition approved in 20092013 as A761/A761M04 (2009).A761/A761M 13a. DOI: 10.1520/A0761_A0761M-13.10.1520/A0761_A0761M-13B. 2 ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatserviceastm.org.ForAnnualBookofASTMStandards volume information, refer to
15、 the standards Document Summary page on the ASTM website. This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because it may not be technically possible to adequately depict all changes
16、 accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version of the standard as published by ASTM is to be considered the official document. *ASummary of Changes section appears at the end of this standard Copyright ASTM International, 100 Barr
17、 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 1A780Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings A796/A796MPractice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, andArches for Storm and Sanitary Sewers and Other Buried A
18、pplications A807/A807MPractice for Installing Corrugated Steel Structural Plate Pipe for Sewers and Other Applications A902Terminology Relating to Metallic Coated Steel Products B6Specication for Zinc B695Specication for Coatings of Zinc Mechanically Deposited on Iron and Steel E29Practice for Using
19、 Signicant Digits in Test Data to Determine Conformance with Specications E376Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Testing Methods F568MSpecication for Carbon and Alloy Steel Externally Threaded Metric Fasteners (Metric) (Withdrawn 2012) 3 2.2
20、ANSI Standards: 4 B18.2.1Square and Hex Bolts and Screws, Inch Series B18.2.2Square and Hex Nuts B18.2.3.6MBolts, Metric Heavy Hex B18.2.4.6MHex Nuts, Heavy, Metric 2.3 AASHTO Standard: 5 LRFD Bridge Design Specications 3. Terminology 3.1 DenitionsSee Terminology A902 for denitions of general termin
21、ology relating to metallic-coated steel products. 3.2 Denitions of Terms Specic 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 short radius corners, and having eithe
22、r a full invert or footings. 3.2.3 fabricator, nthe producer of the components for the nished product. 3.2.4 at plate, nsheet or plate used to fabricate structural plate. 3.2.5 manufacturer, nthe producer of the at plate and accessories. 3.2.6 pipe, na conduit having full circular shape; also, in a
23、general context, all structure shapes covered by this specication. 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 horizontal diameter approximately 25% great
24、er than the nominal diameter. 3.2.9 pipe, vertically elongated, nan elliptically shaped pipe with the vertical diameter up to 10% greater than the nominal diameter. 3.2.10 purchaser, nthe person or agency that purchases the nished pipe structure. 3.2.11 special shape, na shape, other than described
25、elsewhere in this section, suitable for fabrication with structural plate. 3.2.12 structural plate, na corrugated and curved plate which is eld assembled with other structural plates to form the required structure. 3.2.13 vehicular underpass, na high arch shape with an approximate semicircular crown
26、, large-radius sides, small-radius corners between sides and invert, and large-radius invert. 4. Ordering Information 4.1 Orders for material under this specication shall include the following information as necessary to adequately describe the desired product: 4.1.1 Name of material (corrugated ste
27、el 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, as A761 for inch-pound units or A761M for SI units. 4.1.5 Dimensions of structure (diameter or span and rise, and length, and so forth) (see 8.2
28、 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 5.1.3 and Table 1, 3 The last approved version of this historical standard is referenced on www.astm.org. 4 Available from American National Standards Institute (A
29、NSI), 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/A761M13b 24.1.7 Description of corrugations (see 6.2), 4.1.8 End treatment (bevel, skew, gr
30、ade or slope corrections, or other special provision if required by the project plans or specications), 4.1.9 Seam bolt size and number per corrugation, if different than the minimums specied (see 6.3 and Table 2 and Table 3), 4.1.10 Special requirements (including reinforcement locations, shapes, a
31、nd thicknesses), if required, and 4.1.11 Certication, 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 accordance withASTM A761 , 180-in. diameter, 0.168-in. plate thickness, 6 by 2-in.
32、 corrugations, each 140-ft nominal centerline length with end treatment as 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 corrugations, 27.0-m
33、 nominal centerline length with square ends, longitudinal seams with four M20 bolts per corrugation. 5. Materials 5.1 Flat Plate: 5.1.1 ManufactureThe base steel shall be made by any of the following processes: open-hearth, basic-oxygen, or electric-furnace. 5.1.2 Chemical CompositionThe base metal
34、heat analysis shall conform to the chemical requirements of Table 4. The requirements of this specication shall be met in continuous mass production during which the manufacturer has made analysis of individual heats so as to ensure that material is controlled within the specied limits. 5.1.3 Mechan
35、ical RequirementsThe mechanical properties of the at plate material prior to corrugating shall conform to the requirements in Table 1. For the 6 by 2-in. 150 by 50-mm corrugation, either Type 33 or Type 38 must be specied. NOTE 2The properties given in Table 1 for the at plate normally provide the f
36、ollowing minimum yield strength of strengths after the plate is corrugated: 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. 150 by 50-mm corrugations), or corrugations; 44 ksi 300 MPa (used in structural design for pipe
37、with for 15 by 5 1 2-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 1 2-in. 500 by 237-mm corrugations) after the plate is corrugated.corrugations. These yield strengths are used in the structural des
38、ign of the pipe. 5.2 BearingsforArchesWhenspecied,metalbearingsforarchesshallbecold-formedchannelsmadefromatplatematerial conforming to 5.1, and not less than 0.188 in. 4.78 mm in specied thickness. 5.3 MembersforStructuralReinforcementSteelmembersforcircumferentialorlongitudinalstiffeners,orseconda
39、rystructural components,shallbefabricatedfromrolledshapesconformingtoSpecicationA36/A36M,orfromatplatematerialconforming to 5.1. NOTE 3When used, steel transverse structural reinforcing members are part of long span or box corrugated steel structural plate structures. Members of these types of struc
40、tures can be designed using PracticeSteel structural members are often used to reinforce long span structural plate structures or structural plate box structures. The structural design requirements for long span structural plate structures are established in AASHTO LRFD A796/A796M. Bridge Design Spe
41、cications, Section 12.8, and inAASHTO Standard Specications for Highway Bridges, Division I, Section 12.7. The structural design of long-span structures is givenrequirements for structural plate box structures are established in AASHTO LRFD Bridge Design Specications, Section 12.8. The structural de
42、sign of beams is under development by AASHTO. 12.9, and in AASHTO Standard Specications for Highway Bridges, Division I, Section 12.8. 5.4 Assembly FastenersExcept as provided in 5.4.1, bolts and nuts shall conform to the requirements specied in Table 2 (Note 4). Bolts shall have sufficient length t
43、o provide at least full nut engagement when tightened in place.The number of bolts furnished shall be 2% in excess of the theoretical number required to erect the structure or structures. TABLE 1 Mechanical Requirements for Flat Plate A Corrugation Size Yield Strength B , min, Tensile Strength B , m
44、in, Elongation in 2 in. 50 in. mm ksi MPa ksi MPa mm, C min, % 6 by 2 150 by 50 Type 33 28.0 190 42.0 290 25 Type 38 33.0 225 45.0 310 25 15 by 5 1/2 380 by 140, 16 by 6 400 by 150, and 20 by 9 1/2 500 by 237 40.0 275 55.0 380 25 15 by 5 1 2 380 by 140, 16 by 6 400 by 150, and 20 by 9 1 2 500 by 237
45、 40.0 275 55.0 380 25 A Todetermineconformancewiththisspecication,roundeachvaluefortensilestrengthandforyieldstrengthtothenearest0.1ksi1MPaandeachvalueforelongation to the nearest 1 %, both in accordance with the rounding method of Practice E29. B Yieldstrengthandtensilestrengtharebasedonthicknessof
46、thebasemetal.Iftestsaremadeaftercoating,determinethebasemetalthicknessafterstrippingthecoating from the ends of the specimen contacting the grips of the tension testing machine. C Elongation requirement does not apply to material tested after corrugating. A761/A761M13b 35.4.1 Bolts and nuts for use
47、with 6 by 2-in. 150 by 50-mm and 16 by 6-in. 400 by 150-mm corrugations shall have the bearing surface of both bolt and nut shaped to a 1-in. 25-mm radius spherical surface, or shall be standard-type bolts and nuts with special washers providing comparable bearing surface. Bolts and nuts for use wit
48、h 15 by 5 1 2-in. 380 by 140-mm and 20 by9 1 2-in.500by237-mmcorrugationsshallhaveeitherstandardbearingsurfacesorbearingsurfacesshapedtoa1-in.25-mm spherical radius. NOTE 4The purchaser should determine the appropriate bolt size and number of bolts per corrugation for longitudinal seams in accordanc
49、e with the design criteria in Practice A796/A796M or other appropriate guidelines. Bolts of larger diameter than specied in Table 2 may be required with thicker plates. 5.5 HeadWallandBearingAnchorageBoltsandnutsforheadwallanchorageandforanchoringarchbearingstofoundations shall be fabricated as shown on the plans and shall conform to the requirements specied in Table 2. 6. Fabrication 6.1 StructuralPlatesStr
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