1、Designation: A964/A964M 17Standard Specification forCorrugated Steel Box Culverts1This standard is issued under the fixed designation A964/A964M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number i
2、n parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers material, geometric, and wallsection properties of steel box culverts manufactured fromcorrugated plate or sheet, wi
3、th or without attached stiffeners,for field assembly.Appropriate fasteners and optional materialssuch as steel invert plates and headwalls are also described.Applications for steel box culverts include conduits for gravityflow drainage of surface water such as culverts and stormdrains, as well as fo
4、r small bridges and grade separationstructures such as pedestrian or vehicular underpasses, andutility tunnels.1.2 This specification does not include requirements forfoundations, backfill, or the relationship between earth cover orlive loads and strength requirements. These important designconsider
5、ations are described in the AASHTO LRFD BridgeDesign Specifications, Customary U.S. Units (LRFD BridgeDesign Specifications, SI Units).1.3 This specification does not include requirements for thehydraulic design of these structures. Hydraulic design, place-ment of footings or inverts, and end treatm
6、ents to resist scourare described in FHWA HDS No. 5.1.4 Appendix X1 lists nominal dimensions of box culvertsizes commonly available for Type I, II, and IV box culverts.Also listed are cross-sectional area and hydraulic designparameters for these sizes. Geometries for Type III and V boxculverts are a
7、vailable from manufacturers.1.5 Appendix X2 lists manufacturers suggested designproperties for the box culvert types described in thisspecification, and for the spacing classes and material thick-nesses typically available.1.6 The values stated in either inch-pound units or SI unitsare to be regarde
8、d separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system shallbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the specifi-cation.2. Refere
9、nced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars, Plates, Shapes, and Sheet PilingA36/A36M Specification for Carbon Structural SteelA123/A123M Specification for Zinc (Hot-Dip Galvanized)Coatings on Iron and Steel ProductsA761/A761M Speci
10、fication for Corrugated Steel StructuralPlate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches,and ArchesA902 Terminology Relating to Metallic Coated Steel Prod-ucts2.2 AASHTO Standard:LRFD Bridge Design Specifications, Customary U.S. Units(LRFD Bridge Design Specifications, SI Units)32.3 FHWA Stand
11、ard:HDS No. 5, Hydraulic Design of Highway Culverts, ReportNo. FHWA-IP-85-1543. Terminology3.1 DefinitionsFor definitions of general terms related tometallic coated steel products refer to Terminology A902.3.2 Definitions of Terms Specific to This Standard:3.2.1 box culvert, na generally rectangular
12、 conduit havinga cross section symmetric about a vertical axis, with a longradius crown segment, short radius haunch segments, andstraight side segments, with or without stiffeners, footingplates, or invert plates.3.2.2 cross-corrugations, nshallow corrugations formedtransverse to the main corrugati
13、ons on the inside of deepcorrugated haunch plates to facilitate curving (see Fig. 7).1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.17 on Corrugated Steel Pipe Specifications.Current ed
14、ition approved Feb. 1, 2017. Published February 2017. Originallyapproved in 1996. Last previous edition approved in 2011 as A964/A964M - 03(2011). DOI: 10.1520/A0964_A0964M-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. Fo
15、r Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Association of State Highway and TransportationOfficials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,http:/www.transportation.org.4Availab
16、le from National Technical Information Service (NTIS), 5301 ShawneeRd., Alexandria, VA 22312, http:/www.ntis.gov.*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 StatesThis inte
17、rnational standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Co
18、mmittee.13.2.3 crown, nthe long radius top arc segment of a boxculvert cross section (see Fig. 1).3.2.4 haunch, nthe short radius segments at the uppercorners of a box culvert cross section, making the transitionbetween the long radius crown segment and the straight sidesegments (see Fig. 1).3.2.5 r
19、ise, nthe clear inside vertical dimension from thebottom of the straight side segments of a box culvert to thecrown, measured at the axis of symmetry (see Fig. 1).3.2.6 shell, nthe continuous, structural enclosure of thebox culvert consisting of modular, field assembled and bolted,corrugated plate m
20、embers forming the crown, haunch and sidesegments (see Fig. 1).3.2.7 span, nthe clear inside horizontal dimension of abox culvert, measured at the bottom of the straight sidesegments (see Fig. 1).3.2.8 stiffeners, nspaced, hot rolled or cold formed struc-tural members, curved to the shape of the tra
21、nsverse crosssection of box culverts and attached by field bolting to thecorrugated plate shell (see Fig. 1).3.2.9 unit weight, nthe force resulting from gravitationalattraction on a mass having a unit volume.4. Classification4.1 Steel box culverts are furnished in five types. Each typerepresents an
22、 alternate means of providing the required struc-tural strength. The shell thickness and, where applicable, thestiffener thickness and spacing class at the crown and haunchof the box culvert are permitted to differ, provided they satisfythe ordering information and the design properties (see 5.1 and
23、6.1). Furthermore, while the box culvert structure shall besupplied in a consistent type throughout its length, the shellthickness and, where applicable, the stiffener thickness andspacing class also are permitted to be varied along the length,in accordance with cover and loading requirements, as ag
24、reedupon between the purchaser and the fabricator.4.1.1 Type I Box Culvert, consisting of a corrugated plateshell having 6 by 2 in. 152 by 51 mm corrugations incombination with spaced, cold formed, corrugated plate stiff-eners as detailed in Fig. 2. Stiffener spacing classes shall be asdefined below
25、 and as illustrated in Fig. 3.4.1.1.1 Type I, Class A Spacing, consisting of externalstiffeners spaced at 24 in. 610 mm center-to-center.4.1.1.2 Type I, Class B Spacing, consisting of externalstiffeners spaced at 12 in. 305 mm center-to-center.4.1.1.3 Type I, Class C Spacing, consisting of both exte
26、rnaland internal stiffener groups, each spaced at 24 in. 610 mmcenter-to-center, with the outer group offset 9 in. 229 mmfrom the inner group.4.1.2 Type II Box Culvert, consisting of a corrugated plateshell having 6 by 2 in. 152 by 51 mm corrugations incombination with spaced, hot rolled, angle stif
27、feners as detailedin Fig. 4. Stiffener spacing classes shall be as defined belowand as illustrated in Fig. 4.4.1.2.1 Type II, Class A Spacing, consisting of externalstiffeners spaced at 30 in. 762 mm center-to-center.4.1.2.2 Type II, Class B Spacing, consisting of externalstiffeners spaced at 24 in.
28、 610 mm center-to-center.FIG. 1 Box Culvert GeometryA964/A964M 1724.1.2.3 Type II, Class C Spacing, consisting of externalstiffeners spaced at 18 in. 457 mm center-to-center.4.1.3 Type III Box Culvert, consisting of a 15 by 5.5 in. 381by 140 mm corrugated plate shell without stiffeners.4.1.4 Type IV
29、 Box Culvert, consisting of a corrugated plateshell having 6 by 2 in. 152 by 51 mm corrugations incombination with continuous corrugated plate stiffeners. Thestiffener placement and cross section shall be as detailed in Fig.5.4.1.5 Type V Box Culvert, consisting of a corrugated plateshell having 15
30、by 5.5 in. 381 by 140 mm corrugations. Whenrequired by design, cold formed, corrugated plate stiffenersmay be added for increased flexural strength. Stiffener spacingmay vary between the crown and haunches, and may becontinuous or discontinuous around the perimeter of thestructure depending on desig
31、n requirements. Spacing optionsfor corrugated plate stiffeners are provided in Fig. 6.4.1.5.1 Type V, Continuous Stiffener, consisting of externalstiffeners spaced at 15 in. 762 mm center-to-center.4.1.5.2 Type V, Class A Spacing, consisting of externalstiffeners spaced at 45 in. 1143 mm center-to-c
32、enter.4.1.5.3 Type V, Class B Spacing, consisting of externalstiffeners spaced at 60 in. 1524 mm center-to-center.5. Ordering Information5.1 Orders for products specified herein shall include thefollowing information required as necessary to adequatelydescribe the desired product characteristics:FIG
33、. 2 Type I Rib Stiffener GeometryNOTE 1All dimensions are nominal.FIG. 3 Type I Rib Spacing ClassesNOTE 1All dimensions are nominal.FIG. 4 Type II Rib Spacing ClassesNOTE 1All dimensions are nominal.FIG. 5 Type IV StiffenerA964/A964M 1735.1.1 Name of product (corrugated steel box culvert),5.1.2 ASTM
34、 designation and year of issue, as A964- forinch-pound units or A964M- for SI units,5.1.3 Number of structures,5.1.4 Nominal dimensions of each structure including therise, span, length (measured along the bottom centerline), andthe unobstructed cross sectional area required,NOTE 1The nominal length
35、 increment is 2 ft 0.61 m for Types I, IIand IV box culverts and 2.5 ft 0.76 m for Types III and V box culverts.Also, structure types with internal stiffeners reduce the available crosssectional area below nominal values. Therefore, the unobstructed crosssectional area required by the hydraulic desi
36、gn may be important in somecases.5.1.5 The design ground surface profile documenting thelocation and magnitude of the minimum and maximum coverheight over structure top centerline (measured from the insidecrest of the corrugated plate to the finished surface of thetraveled way),NOTE 2The design spec
37、ifications limit cover height to a range ofbetween 1.4 ft and 5.0 ft 0.43 m and 1.52 m. Small deviations in theheight of cover can make a significant difference in the design. It isrecommended that the purchaser specify the ground surface profile to thenearest 0.1 ft 30 mm.5.1.6 Dead load unit weigh
38、t, if different than 120 lb/ft318.9 kN/m3,5.1.7 Structure live load vehicle configuration, if differentthan AASHTO HL-93 (see AASHTO LRFD Bridge DesignSpecifications, Customary U.S. Units LRFD Bridge DesignSpecifications, SI Units),5.1.8 Base channel, corrugated footing pads or full invertplates, if
39、 required. For box culverts not supported on concretefootings, net allowable foundation bearing capacity, if differentthan 2 tons/ft2(192 kPa),NOTE 3Design procedures for corrugated footing pads or full invertplates are beyond the scope of this specification. However, generalconsiderations for desig
40、n of structural plate arch footings are given inFIG. 6 Type V Stiffener Spacing OptionsA964/A964M 174A796. Also, specific design criteria for similar applications are availablein the AASHTO LRFD Bridge Design Specifications, Customary U.S.Units (LRFD Bridge Design Specifications, SI Units).5.1.9 End
41、 treatment (bevel, skew, grade or slopecorrections, headwalls, cut-off walls, or other specialprovision), if required,NOTE 4End conditions involving beveled or skewed cut ends mayrequire a support wall or collar. The design procedures for these endtreatments as well as vertical headwalls are beyond
42、the scope of thisspecification.5.1.10 Optionally, structure type (if not included in theorder, structure type shall be the option of the fabricator),NOTE 5Some of the structure types specified herein may be propri-etary and available from only one fabricator. Also, some fabricators mayfurnish more t
43、han one type. The most competitive alternative willgenerally be obtained by leaving type selection to the option of thefabricator. Note the revised plate material used in Type V boxes asspecified in 7.1 and 7.5.5.1.11 Other special requirements such as stubs, tap-ins,saddles, elbows, etc., if requir
44、ed, and5.1.12 Material certification, if required (see 13.1).NOTE 6Typical ordering information may be described as: onecorrugated steel box culvert, in accordance with ASTM A964-, 7 ft, 3 in.rise by 20 ft, 8 in. span by 120 ft long, having a 1.4 ft minimum cover anda 3.0 ft maximum cover, with base
45、 channels for concrete footings; or twocorrugated steel box culverts, in accordance with ASTM A964M-, eachbeing 1.88 m rise by 4.65 m span by 18.3 m long, each having 0.43 mminimum and maximum covers, assuming a dead load unit weight of 21.3kN/m3, having full invert plates and having ends slope adju
46、sted for2-percent grade, including certification.6. Design Properties6.1 The required design properties shall be determined forthe crown and haunch segments of the box culvert in accor-dance with the ordering information and the AASHTO LRFDBridge Design Specifications, Customary U.S. Units (LRFDFIG.
47、 7 Type V Cross-Corrugation Detail at Haunch (when applicable)A964/A964M 175Bridge Design Specifications, SI Units) (see 1.6 and 2.2).Section 12.9 of the AASHTO specifications provide the rangeof geometric limits for Types I, II, and IV box culverts.Geometric requirements for Types III and V box cul
48、verts areincluded in 12.8.9 of the AASHTO specificaions.7. Materials and Coatings7.1 The corrugated plate material utilized for the shells ofType I, II, and IV box culverts shall be fabricated from steelsheet or plate conforming to the chemical, mechanical,thickness, shape, and coating requirements
49、of SpecificationA761/A761M. The corrugated plate material for Type III and Vbox culverts shall be fabricated from steel sheet or platemeeting the same requirements of A761/A761M except with ahigher minimum flat plate yield strength of 40 ksi 275 MPaand in accordance with the requirements of 7.11.7.2 Stiffeners for Type I box culverts shall be 6 by 3 in. 152by 76 mm cold formed sections fabricated from steel sheet orplate conforming to the chemical, mechanical, thickness andcoating require
