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- 67-1.02 MATERIALS Not Used 67-1.03 CONSTRUCTION
- 67-2.01D Quality Assurance
- 67-2.02B Protective Coating
66-4.04 PAYMENTNot Used 66-5–66-10 RESERVED 67 STRUCTURAL PLATE CULVERTS 67-1 GENERAL 67-1.01 GENERALSection 67-1 includes general specifications for constructing structural plate culverts. Excavation, backfill, and shaped bedding must comply with section 19-3. Section 61-2 does not apply.
67-1.02 MATERIALSNot Used 67-1.03 CONSTRUCTIONNot Used 67-1.04 PAYMENTNot Used 67-2 STRUCTURAL METAL PLATE PIPE 67-2.01 GENERAL67-2.01A SummarySection 67-2 includes specifications for constructing structural metal plate pipe, arches, and pipe arches. 67-2.01B DefinitionsReserved 67-2.01C SubmittalsSubmit certificates of compliance for structural metal plate pipe, arches, and pipe arches. Submit a copy of the manufacturer's assembly instructions before assembling structural plates. 67-2.01D Quality AssuranceReserved 67-2.02 MATERIALS67-2.02A GeneralStructural metal plate pipe, arches, and pipe arches must be fabricated from structural steel plates or structural aluminum plates. The type of metal, steel or aluminum is described. Structural plates, nuts, and bolts for structural steel plate pipe, arches, and pipe arches must comply with AASHTO M 167M/M 167. Structural plates, nuts, and bolts for structural aluminum plate pipe, arches, and pipe arches must comply with AASHTO M 219. Bolts must be zinc-coated steel and comply with ASTM A449. Nuts must be zinc-coated steel and comply with ASTM A563, Grade C. Do not mix aluminum and steel materials in the same installation, except steel bolts and nuts on structural aluminum plate pipe. The thickness of galvanized coating for structural steel plate is determined under ASTM A123/A123M and ASTM A153/A153M. If welding of steel is required, it must comply with AWS D1.1 "Structural Welding Code." Weld steel plates, except fittings, before galvanizing. If welding of aluminum is required, it must comply with AWS D1.2/D1.2M "Structural Welding Code." The Engineer may perform nondestructive testing of the welds. Corner plates must be at least 0.138 inch thick for structural steel plate pipe arches that are 0.109 inch thick.
If protective coating is applied to plates for structural steel plate pipe, arches, and pipe arches, each plate must have the nominal metal thickness painted on the inner surface of each plate so that the plate thickness can be readily identified. After installation, coat the portion of nuts and bolts used for assembly of coated structural steel plate pipe, arches, and pipe arches projecting outside the pipe. The portion of nuts and bolts projecting inside the pipe need not be coated. If asphalt mastic is used for the protective coating, the surface at pipe joints need not be coated before assembly. Joints must be sealed thoroughly after assembly with the asphalt mastic on the outside of the sealed joint. Repair damaged coatings under section 66-1.02C.
67-2.02C IdentificationIf plates of two dissimilar thicknesses are involved in one cross section of an installation, the installation is described by pipe size and by a symbol designating the number and thickness of plates required. For example, the symbol (4.109-1.168) designates an installation for one plate length composed of four 0.109-inch-thick steel plates and one 0.168-inch-thick steel plate, the thicker plates to be centered on the invert. This designation does not prevent you from using fewer plates if the minimum thickness requirements are complied with. 67-2.02D Reserved67-2.03 CONSTRUCTIONAssemble structural plates under the manufacturer's instructions. Repair damaged galvanized surfaces under section 75-1.02B. You may construct pipes and pipe arches with fewer plates than the number designated if the number of plates around the circumference of structural metal plate pipes and pipe arches are described. Before backfilling, tighten plate section bolts within the ranges shown in the following table:
Place struts as shown during construction of pipes, arches, and pipe arches. Maintain the struts in place until backfill has been placed to the grading plane elevation or 5 feet over the crown, whichever is less. Remove the struts before construction of structures at the ends of pipes, arches, and pipe arches. Wherever pipes are connected to inlet and outlet structures, place the ends of the pipes flush or cut them off flush with the structure face. Each side of an arch must rest on a galvanized metal angle or channel bearing that is securely anchored to the footing and capable of resisting the arch thrust without damage to the angle or channel.
67-2.04 PAYMENTThe payment quantity for structural metal plate pipe is the length measured along the centerline of the pipe and parallel with the slope line. The payment quantity includes the length of bends and elbows. If the pipe is cut to fit a structure or slope, the payment quantity is the length of pipe necessary to be placed before cutting, measured in 4-foot increments. 67-3 METAL LINER PLATE PIPE Directory: esc esc -> Biblical Eschatology Presentation by: D. Paul Beck May 4, 2016 Ground Rules esc -> Mikael Håfstrӧm Screenplay by Miles Chapman and Arnell Jesko esc -> Escort affinity Program for Audi Club Members esc -> Preliminary entry form pistol esc -> Application form esc -> Request from Asian and Pacific Training Centre for Information and esc -> Constitution of the engineering student council university of maryland esc -> Subdisciplines of Earth Science Geology; study of the earth Download 6.74 Mb. Share with your friends:
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