1、Designation: A 964/A 964M 03Standard Specification forCorrugated Steel Box Culverts1This standard is issued under the fixed designation A 964/A 964M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A numb
2、er in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers material, geometric, and wallsection properties of steel box culverts manufactured fromcorrugated plate or sheet
3、, with 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
4、as for 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 designcon
5、siderations 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 t
6、reatments to resist scourare described in FHWA HDS No. 5.1.4 Appendix X1 lists nominal dimensions of box culvertsizes commonly available. Also listed are cross-sectional areaand hydraulic design parameters for these sizes.1.5 Appendix X2 lists manufacturers suggested designproperties for the box cul
7、vert types described in this specifi-cation, and for the spacing classes and material thicknessestypically available.1.6 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsys
8、tem 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. Referenced Documents2.1 ASTM Standards:2A 6/A 6M Specification for General Requirements forRolled Structural Ste
9、el Bars, Plates, Shapes, and SheetPilingA 36/A 36M Specification for Carbon Structural SteelA 123/A 123M Specification for Zinc (Hot-Dip Galva-nized) Coatings on Iron and Steel ProductsA 761/A 761M Specification for Corrugated Steel Struc-tural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches,
10、 and ArchesA 796/A 796M Practice for Structural Design of Corru-gated Steel Pipe, Pipe-Arches, and Arches for Storm andSanitary Sewers and Other Buried ApplicationsA 902 Terminology Relating to Metallic Coated Steel Prod-ucts2.2 AASHTO Standard:LRFD Bridge Design Specifications, Customary U.S. Units
11、(LRFD Bridge Design Specifications, SI Units)32.3 FHWA Standard:HDS No. 5, Hydraulic Design of Highway Culverts, ReportNo. FHWA-IP-85-1543. Terminology3.1 Definitions:3.1.1 For definitions of general terms related to metalliccoated steel products refer to Terminology A 902.3.2 Definitions of Terms S
12、pecific to This Standard:3.2.1 box culvert, na generally rectangular 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.1This specificatio
13、n 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 edition approved October 1, 2003. Published December 2003. Originallyapproved in 1996. Last previous edit
14、ion approved in 2002 as A 964/A 964M - 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Ame
15、rican Association of State Highway and TransportationOfficials, 444 N. Capitol St. N.W., Suite 225, Washington, DC 20001.4Available from the National Technical Information Service, Springfield, VA22161.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-295
16、9, United States.3.2.2 cross-corrugations, nshallow corrugations formedtransverse to the main corrugations on the inside of deepcorrugated haunch plates to facilitate curving (see Fig. 8).3.2.3 crown, nthe long radius top arc segment of a boxculvert cross section (see Fig. 1).3.2.4 haunch, nthe shor
17、t 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 shell, nthe continuous, structural enclosure of thebox culvert consisting of modular, field assembled and bolted,corrugate
18、d plate members forming the crown, haunch and sidesegments (see Fig. 1).3.2.6 stiffeners, nspaced, hot rolled or cold formed struc-tural members, curved to the shape of the transverse crosssection of box culverts and attached by field bolting to thecorrugated plate shell (see Fig. 1).3.2.7 rise, nth
19、e 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).3.2.8 span, nthe clear inside horizontal dimension of abox culvert, measured at the bottom of the straight sidesegments (see Fig. 1).3.2.9 unit w
20、eight, 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 alternate means of providing the required struc-tural strength. The shell thickness and, where applicable, thestiffener
21、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 and6.1). Furthermore, while the box culvert structure shall besupplied in a consistent type throughout its length, the shell
22、thickness 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 agreedupon between the purchaser and the fabricator.4.1.1 Type I Box Culvert, consisting of a corrugated plateshell having
23、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 and as illustrated in Fig. 3.4.1.1.1 Type I, Class A Spacing, consisting of externalstiffeners spaced at 24 in. 610 mm c
24、enter-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 externaland internal stiffener groups, each spaced at 24 in. 610 mmcenter-to-center, with the outer group offset 9 in. 229 mm
25、from 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 stiffeners as detailedin Fig. 4. Stiffener spacing classes shall be as defined belowand as illustrated in Fig. 4.4.1.2.1 Type
26、 II, Class A Spacing, consisting of externalstiffeners spaced at 30 in. 762 mm center-to-center.FIG. 1 Box Culvert GeometryA 964/A 964M 0324.1.2.2 Type II, Class B Spacing, consisting of externalstiffeners spaced at 24 in. 610 mm center-to-center.4.1.2.3 Type II, Class C Spacing, consisting of exter
27、nalstiffeners 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 Box Culvert, consisting of a corrugated plateshell having 6 by 2 in. 152 by 51 mm corrugations incombination with cont
28、inuous 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 by 5.5 in. 381 by 140 mm corrugations incombination with cold formed, corrugated plate stiffeners,continuous on the cro
29、wn and, if required, spaced corrugatedplate stiffeners on the haunches. The continuous crown stiff-ener placement and cross section shall be as detailed in Fig. 6.Where spaced haunch stiffeners are utilized, the stiffenerspacing classes shall be as defined below and as illustrated inFig. 7. Haunch s
30、tiffeners are not required to be continuous withthe crown stiffeners around the periphery of the haunch andcrown.4.1.5.1 Type V, Class A Spacing, consisting of externalhaunch stiffeners spaced at 45 in. 1143 mm center-to-center.FIG. 2 Type I Rib Stiffener GeometryNOTEAll dimensions are nominal.FIG.
31、3 Type I Rib Spacing ClassesNOTEAll dimensions are nominal.FIG. 4 Type II Rib Spacing ClassesNOTEAll dimensions are nominal.FIG. 5 Type IV StiffenerA 964/A 964M 0334.1.5.2 Type V, Class B Spacing, consisting of externalhaunch stiffeners spaced at 60 in. 1524 mm center-to-center.5. Ordering Informati
32、on5.1 Orders for products specified herein shall include thefollowing information required as necessary to adequatelydescribe the desired product characteristics:5.1.1 Name of product (corrugated steel box culvert),5.1.2 ASTM designation and year of issue, as A 964- forinch-pound units or A 964M- fo
33、r 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 increment is 2 ft 0.61 m for Types I, IIand IV box culverts and 2.5 ft 0
34、.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 design may be important in somecases.5.1.5 The design ground surface profile
35、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 specifications limit cover height to a range ofbetween 1.4 ft and 5.0 ft 0.43
36、 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.FIG. 6 Type V Continuous Crown StiffenerFIG. 7 Type V Spaced Haunch StiffenersA 964/A 964M 0345.1.6
37、 Dead load unit weight, if different than 120 lb/ft318.9 kN/m3,5.1.7 Structure live load vehicle configuration, if differentthan AASHTO HS 20-44 (see AASHTO LRFD Bridge DesignSpecifications, Customary U.S. Units LRFD Bridge DesignSpecifications, SI Units),5.1.8 Base channel, corrugated footing pads
38、or full invertplates, if required. For box culverts not supported on concretefootings, 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, generalcons
39、iderations for design of structural plate arch footings are given inA 796. 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 treatment (bevel, skew, grade o
40、r slope correc-tions, corrugated steel 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 the scope of
41、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 than one type.
42、 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 7.6.FIG. 8 Type V Cross-Corrugation Detail at HaunchA 964/A 964M 0355.1.11 Other special requirements such
43、 as stubs, tap-ins,saddles, elbows, etc., if required, 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 A 964-, 7 ft, 3 in.rise by 20 ft, 8 in. span by 120 ft long, having a 1.4 f
44、t minimum cover anda 3.0 ft maximum cover, with base channels for concrete footings; or twocorrugated steel box culverts, in accordance with ASTM A 964M-, 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,
45、 having full invert plates and having ends slope adjusted 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
46、Design Specifications, Customary U.S. Units (LRFDBridge Design Specifications, SI Units) (see 1.6 and 2.2). TheAASHTO specifications are applicable for the range of geo-metric limits given in Fig. 1 and Table 1.7. Materials and Coatings7.1 The corrugated plate material utilized for the shells ofType
47、 I, II, III and IV box culverts shall be fabricated from steelsheet or plate conforming to the chemical, mechanical, thick-ness, shape, and coating requirements of Specification A 761/A 761M. The corrugated plate material for Type V box culvertsshall be fabricated from steel sheet or plate meeting t
48、he samerequirements of A 761/A 761M except with a higher minimumflat plate yield strength of 40 ksi 275 MPa and in accordancewith 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
49、 chemical, mechanical, thickness andcoating requirements of Specification A 761/A 761M. Theyshall also meet the dimensions and tolerances of Fig. 2.7.3 Stiffeners for Type II box culverts shall be 3 by 5 by 0.5in. 76 by 127 by 13 mm hot rolled steel angles conforming tothe dimensional requirements of Specification A 6/A 6M and tothe chemical and mechanical requirements of SpecificationA 36/A 36M. These members shall be hot dip galvanized afterfabrication in accordance with the coating requirements ofSpecification A 1
