1、Designation: B864/B864M 08B864/B864M 13Standard Specification forCorrugated Aluminum Box Culverts1This standard is issued under the fixed designation B864/B864M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revi
2、sion. A number in 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 wall section properties of aluminum box culverts manufactured fromcorrugate
3、d plate or sheet, with attached rib stiffeners, for field assembly. Appropriate fasteners and optional materials, such asaluminum invert plates and headwalls, are also described.Applications for aluminum box culverts include conduits for gravity flowdrainage of surface water, such as culverts and st
4、orm drains, as well as for small bridges and grade separation structures such aspedestrian or vehicular underpasses, and utility tunnels.1.2 This specification does not include requirements for foundations, backfill, or the relationship between earth cover or liveloads and strength requirements. The
5、se important design considerations are described in the AASHTO Standard Specifications forHighway Bridges and the AASHTO LRFD Bridge Design Specifications.LRFD Bridge Design Specifications and the LRFDBridge Construction Specifications.1.3 This specification does not include requirements for the hyd
6、raulic design of these structures. Hydraulic design, placementof footings or inverts, and end treatments to resist scour are described in FHWA HDS No. 5.1.4 Appendix X1 lists nominal dimensions of box culvert sizes commonly available. Also listed are cross-sectional area andhydraulic design paramete
7、rs for these sizes.1.5 Appendix X2 lists manufacturers suggested design properties for the rib stiffener types, spacing classes, and materialthicknesses described in this specification.1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values
8、stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA123/A
9、123M 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 Threaded Rod 60 000 PSI Tensile StrengthA563 Specification for Carbon and Alloy Stee
10、l NutsA563M Specification for Carbon and Alloy Steel Nuts (Metric)B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and TubesB746/B746M Specification for Corrugated Aluminum Alloy Structural Plate for Field-Bolted Pipe, Pipe-Arches, and ArchesB790/B790M Practice
11、 for Structural Design of Corrugated Aluminum Pipe, Pipe-Arches, and Arches for Culverts, StormSewers, and Other Buried Conduits2.2 AASHTO Standard:Standard Specifications for Highway BridgesLRFD Bridge Design Specifications3LRFD Bridge DesignConstruction Specifications1 This specification is under
12、the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is under the direct responsibility of B07.08 on CorrugatedAluminumPipe and Corrugated Aluminum Structural Plate.Current edition approved Nov. 1, 2008May 1, 2013. Published December 2008June 2013. Originally approved in 1995. Last pr
13、evious edition approved in 20072008 asB864/B864M-00 (2007). -08. DOI: 10.1520/B0864_B0864M-08.10.1520/B0864_B0864M-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
14、 the standards Document Summary page on the ASTM website.3 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.This document is not an ASTM standard and is intended only to pr
15、ovide 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 recommends that users consult prior editions as appropriate. In all cases only the current versionof th
16、e standard as published by ASTM is to be considered the official document.*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 States12.3 FHWA Standard:HDS No. 5, Hydraulic Design o
17、f Highway Culverts, Report No. FHWA-NHI-010-020, Sept. 2001 (Revised May 2005)ThirdEdition. FHWA publication number HIF1202 (2012).43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 box culverta generally rectangular conduit having a cross section symmetric about a vertical axis
18、, with a long radiuscrown segment, short radius haunch segments, and straight side segments, with rib stiffeners (see Fig. 1).3.1.2 crownthe long radius top arc segment of a box culvert cross section (see Fig. 1).3.1.3 haunchthe short radius segments at the upper corners of a box culvert cross secti
19、on, making the transition between thelong radius crown segment and the straight side segments (see Fig. 1).3.1.4 rib stiffenersspaced extruded aluminum structural members, curved to the shape of the transverse cross section of boxculverts and attached by field-bolting to the corrugated plate shell (
20、see Fig. 1).3.1.5 risethe clear inside vertical dimension from the bottom of the straight side segments of a box culvert to the crown,measured at the axis of symmetry (see Fig. 1).3.1.6 shellthe continuous, structural enclosure of the box culvert consisting of modular, field-assembled, and boltedcor
21、rugated aluminum plate members forming the crown, haunch, and side segments (see Fig. 1).3.1.7 spanthe clear inside horizontal dimension of a box culvert, measured at the bottom of the straight side segments (seeFig. 1).4. Classification4.1 Aluminum box culverts consist of a 9 by 212 in. 229 by 64 m
22、m corrugated aluminum plate shell in combination withextruded aluminum stiffening ribs. The plate thickness, stiffener type, and spacing class at the crown and haunch of the box culvertmay differ, provided they satisfy the ordering information and the design properties (see 5.1 and 6.1). The plate t
23、hickness andstiffener type and spacing class may be varied along the length of the box culvert in accordance with cover and loadingrequirements, as agreed upon between the purchaser and the fabricator.4.2 Rib Stiffener Type and Spacing Class:4.2.1 Rib stiffeners shall consist of Type 1, Type 2, or T
24、ype 10 at the option of the fabricator. Geometry, section, and mechanicalproperties must conform to the requirements of Fig. 2 or Fig. 3. Rib stiffener spacing classes shall be as defined in 4.2.2-4.2.5 andillustrated in Fig. 4 or Fig. 5.4.2.2 Class A Spacing, consisting of either Type 1, Type 2, or
25、 Type 10 external rib stiffeners spaced at 54 in. 1372 mmcenter-to-center.4.2.3 Class B Spacing, consisting of either Type 1, Type 2, or Type 10 external rib stiffeners spaced at 27 in. 686 mmcenter-to-center.4.2.4 Class C Spacing, consisting of either Type 1, Type 2, or Type 10 external rib stiffen
26、ers spaced at 18 in. 457 mmcenter-to-center.4.2.5 Class D Spacing, consisting of either Type 1 or Type 2 external rib stiffeners spaced at 9 in. 229 mm center-to-center.4 Available from National Technical Information Service (NTIS), 5285 Port Royal Rd., Springfield, VA 22161, http:/www.ntis.gov.FIG.
27、 1 Box Culvert GeometryB864/B864M 132Type 1 Type 2Alloy 6061-T6 6061-T6Yield Strength 35 ksi 240 MPa 35 ksi 240 MPaTensile Strength 38 ksi 260 MPa 38 ksi 260 MPaArea 1.71 in.2 1103 mm2 2.27 in.2 1465 mm2Center of Area Yc = 1.02 in. 26.0 mm Yc = 1.76 in. 44.8 mmPlastic Modulus 1.70 in.3 27 858 mm3 2.
28、68 in.3 43 917 mm3Plastic Moment Mp = 4.97 k-ft 6.72 kN-m Mp = 7.81 k-ft 10.60 kN-mFIG. 2 Geometry and Nominal Design Properties for Types 1 and 2 RibsType 10 RibAlloy 6061-T6Yield Strength 35 ksi 240 MPaTensile Strength 38 ksi 260 MPaArea 7.166 in.2 4623 mm2Center of Area Yc = 2.228 in. 56.6 mmPlas
29、tic Modulus 11.074 in.3 = 181 465 mm3Plastic Moment Mp = 32.23 k-ft 43.7 kN-mFIG. 3 Geometry and Nominal Design Properties for Type 10 RibsB864/B864M 1335. Ordering Information5.1 Orders for products specified herein shall include the following information required as necessary to adequately describ
30、ethe desired product characteristics:5.1.1 Name of product (corrugated aluminum box culvert),5.1.2 ASTM designation and year of issue, as B XXX-_ for inch-pound units or B XXXM-_ for SI units,FIG. 4 Rib Stiffener Spacing Classes for Type 1 and Type 2 RibsFIG. 5 Rib Stiffener Spacing Classes for Type
31、 10 RibsB864/B864M 1345.1.3 Number of structures,5.1.4 Nominal dimensions of each structure including the rise, span, length (measured along the bottom centerline), and crosssectional area required,NOTE 1The nominal length increment is 2.25 ft 0.68 m. Special lengths can be provided.5.1.5 Minimum an
32、d maximum cover height over structure top centerline (measured from the inside crest of the corrugated plateto the finished surface of the traveled way),NOTE 2The minimum and maximum cover height is assumed to apply to the entire length of the structure unless the purchaser specifies otherwise.The d
33、esign specifications limit cover height to a range of between 1.4 ft and 5.0 ft 0.43 m and 1.52 m. Small deviations in the height of cover can makea significant difference in the design. It is recommended that the purchaser specify minimum and maximum cover heights to the nearest 0.1 ft 30 mm.5.1.6
34、Dead load unit weight, if different than 120 lb/ft3 1920 kg/m3,5.1.7 Structure live load vehicle configuration, if different than AASHTO HS 20-44 HL-93 (see AASHTO StandardSpecifications for Highway Bridges),LRFD Bridge Design Specification),5.1.8 Corrugated footing pads or full invert plates, if re
35、quired. For box culverts not supported on concrete footings, allowablefoundation bearing capacity, if different than 2 tons/ft2 192 kPa,NOTE 3Design procedures for corrugated footing pads or full invert plates are beyond the scope of this specification. However, general considerationsfor design of s
36、tructural plate arch footings are given in Practice B790/B790M. Also, specific design criteria for similar applications are available inAASHTO Standard Specifications for Highway Bridges and AASHTO LRFD Bridge Design Specifications.5.1.9 End treatment (bevel, skew, grade or slope corrections, corrug
37、ated aluminum headwalls, cut-off walls, or other specialprovision), if required,NOTE 4End conditions involving beveled or skewed cut ends may require a structural support wall or collar. The design procedures for these endtreatments as well as for vertical headwalls are beyond the scope of this spec
38、ification.5.1.10 Other special requirements such as stubs, tap-ins, saddles, elbows, etc., if required, and5.1.11 Material certification, if required (see 13.1).NOTE 5Typical ordering information may be described as: (1) One corrugated aluminum box culvert, in accordance with ASTM B XXX-_, 7 ft,3 in
39、. rise by 20 ft, 6 in. span by 45 ft long, having a 1.4 ft minimum cover and a 3.0 ft maximum cover, with full invert plates; or (2) Two corrugatedaluminum box culverts, in accordance withASTM B XXXM-_, each being 1.96 m rise by 4.67 m span by 18.3 m long, each having 0.43 m minimumand maximum cover
40、s, assuming a dead load unit weight of 2162 kg/m3, having full invert plates and having ends slope adjusted for 2 % grade, includingcertification.6. Design Properties6.1 The required plastic moment capacities shall be determined for the crown and haunch segments of the box culvert inaccordance with
41、the ordering information and AASHTO Standard Specifications for Highway Bridges or AASHTO LRFD BridgeDesign Specifications. The AASHTO Standard Specifications for Highway Bridges and AASHTO LRFD Bridge DesignSpecifications are applicable for the range of geometric limits given in Fig. 1 and Table 1
42、and Table 2. When agreed upon by thepurchaser and the fabricator, box culvert geometries outside the limits given in Table 1 and Table 2 may be designed using otherrecognized Design Specifications.7. Materials7.1 The corrugated plate material utilized for the shell shall be fabricated from aluminum
43、sheet or plate conforming to thechemical, mechanical, thickness and shape requirements of Specification B746/B746M. Section properties for the corrugated plateare provided in Practice B790/B790M.7.2 Rib stiffeners shall be extruded shapes conforming to the chemical and mechanical requirements of Spe
44、cification B221 for6061-T6. Their dimensions and the required, nominal section properties developed are shown in Fig. 2 and Fig. 3.TABLE 1 Geometric Limits of Box Culverts 8 ft 9 in. to 25 ft 5 in.2.67 to 7.75 mElementsA Minimum MaximumSpan (S) 8.75 ft 2.67 m 25.42 ft 7.75 mRise (R) 2.50 ft 0.76 m 1
45、0.50 ft 3.20 mRadius of crown ( rc) . 24.79 ft 7.56 mRadius of haunch ( rh) 2.50 ft 0.76 m .Haunch angle () 50 70Length of leg (D) 0.50 ft 0.15 m 5.2 ft 1.59 mLength of rib on leg (t) B .A See Fig. 1 for illustration of geometric elements.B Minimum 19 in. 483 mm or length of leg (D) minus 3 in. 76 m
46、m, whichever isless.less, or within 3 in. (76 mm) top of footingB864/B864M 1357.3 Corrugated aluminum footing and invert members, when specified, shall conform to the same material requirements as 7.1.Thickness shall be as required by the design (see Note 3) and shall not be less than 0.100 in. 2.5
47、mm.7.4 Corrugated aluminum headwalls, when specified, shall conform to the same material requirements as 7.1.Aluminum walers,tie-back rods, deadman anchors, and other aluminum structural members shall conform to the mechanical and chemicalrequirements of 7.2. Any steel tie-back rods, deadman anchors
48、, or other steel structural member shall meet the requirements ofSpecification A36/A36M. Where they are installed in contact with aluminum members steel members shall be hot-dip galvanizedafter fabrication in accordance with the coating requirements of Specification A123/A123M. The thickness, shape,
49、 and dimensionsof headwall and incidental members shall be as required by the design (see Note 4).7.5 Aluminum cut-off walls, when specified, shall conform to the same material requirements as 7.1 and provide a nominalthickness of 0.10 in. 2.5 mm.7.6 Bolts and nuts required to join corrugated plates together, or to join corrugated plates to the stiffeners or other structuralmembers, shall conform to the requirements of Specification B746/B746M. Bolts and nuts for
