AASHTO M 245-2016 Standard Specification for Corrugated Steel Pipe Polymer-Precoated for Sewers and Drains.pdf
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1、Standard Specification for Corrugated Steel Pipe, Polymer-Precoated, for Sewers and Drains AASHTO Designation: M 245-16 Release: Group 2 (June 2016) ASTM Designation: A762/A762M-98 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington,
2、 D.C. 20001 TS-4b M 245-1 AASHTO Standard Specification for Corrugated Steel Pipe, Polymer- Precoated, for Sewers and Drains AASHTO Designation: M 245-16 Release: Group 2 (June 2016) ASTM Designation: A762/A762M-98 1. SCOPE 1.1. This specification covers polymer-precoated corrugated steel pipe inten
3、ded for use for storm water drainage, underdrains, the construction of culverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance of sanitary or industrial wastes. The steel sheet used in fabrication of the pipe has a polymer protective coating over a meta
4、llic coating of zinc (galvanizing), 55 aluminum-zinc alloy, or zinc-5 percent aluminum-mischmetal alloy. 1.2. The polymer coating provides a degree of extra protection for the pipe against abrasion and corrosion as compared with metallic-coated pipe without polymer coating. Some severe environments
5、may cause corrosion problems to accessory items such as rivets or coupling band hardware that does not have a polymer coating. Additional protection for polymer-precoated corrugated steel pipe can be provided by use of coatings applied after fabrication of the pipe as described in M 190. 1.3. This s
6、pecification does not include requirements for bedding, backfill, or the relationship between earth cover load and sheet thickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection of sheet thickness, type of bedding and backfill, con
7、trolled manufacture in the plant, and care in the installation. The installation procedure is described in the AASHTO LRFD Bridge Construction Specifications, Section 26. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 190, Bituminous-Coated Corrugated Metal Culvert Pipe and Pipe-Arches M 218, Stee
8、l Sheet, Zinc-Coated (Galvanized), for Corrugated Steel Pipe M 232M/M 232, Zinc Coating (Hot-Dip) on Iron and Steel Hardware M 243, Field-Applied Coating of Corrugated Metal Structural Plate for Pipe, Pipe-Arches, and Arches M 246, Steel Sheet, Metallic-Coated and Polymer-Precoated, for Corrugated S
9、teel Pipe M 289, Aluminum-Zinc Alloy Coated Sheet Steel for Corrugated Steel Pipe T 65M/T 65, Mass Weight of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings T 249, Helical Lock Seam Corrugated Pipe AASHTO LRFD Bridge Construction Specifications AASHTO LRFD Bridge Design Specifica
10、tions 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4b M 245-2 AASHTO 2.2. ASTM Standards: A493, Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging A563
11、M, Standard Specification for Carbon and Alloy Steel Nuts (Metric) A780/A780M, Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings A796/A796M, Standard Practice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, and Arches for Storm and Sanitary Sewers
12、 and Other Buried Applications A929/A929M, Standard Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process for Corrugated Steel Pipe B633, Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel B695, Standard Specification for Coatings of Zinc Mechanically Depo
13、sited on Iron and Steel C990, Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants D1005, Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers D1056, Standard Specification for Flex
14、ible Cellular MaterialsSponge or Expanded Rubber F568M, Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners (withdrawn 2012) 2.3. AISI Standard: S100, North American Specification for the Design of Cold-Formed Steel Structural Members 3. TERMINOLOGY 3.1. Descriptio
15、n of Terms Specific to This Standard: 3.1.1. fabricatorthe producer of the pipe. 3.1.2. manufacturerthe producer of the sheet. 3.1.3. purchaserthe purchaser of the finished product. 4. CLASSIFICATION 4.1. The corrugated steel pipe covered by this specification is classified as follows: 4.1.1. Type I
16、This pipe shall have a full circular cross section, with a single thickness of corrugated sheet, fabricated with annular (circumferential) or helical corrugations. 4.1.2. Type IAThis pipe shall have a full circular cross section with an outer shell of corrugated sheet fabricated with helical corruga
17、tions and an inner liner of smooth (uncorrugated) sheet attached to the shell at helical lock seams. 4.1.3. Type IRThis pipe shall have a full circular cross section with a single thickness of smooth sheet, fabricated with helical ribs projecting outwardly. 4.1.4. Type IIThis pipe shall be a Type I
18、pipe that has been reformed into a pipe-arch having an approximately flat bottom. 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4b M 245-3 AASHTO 4.1.5. Type IIAThis pipe shall be a Type IA pipe th
19、at has been reformed into a pipe-arch having an approximately flat bottom. 4.1.6. Type IIRThis pipe shall be a Type IR pipe that has been reformed into a pipe-arch having an approximately flat bottom. 4.1.7. Type IIIThis pipe, intended for use as underdrains or for underground disposal of water, sha
20、ll be a Type I pipe that has been perforated to permit the inflow or outflow of water. 4.1.8. Type IIIAThis pipe, intended for use as underdrains, shall consist of a semicircular cross section having a smooth (uncorrugated) bottom with a corrugated top shield. 4.2. Perforations in Type III pipe are
21、included in two classes as described in Section 8.3.2. 5. ORDERING INFORMATION 5.1. Orders for material to this specification shall include the following information as necessary to adequately describe the desired product: 5.1.1. Name of material (polymer-coated corrugated steel pipe); 5.1.2. Grade
22、of polymer coating indicating thickness on inside and outside (Section 6.1.1); 5.1.3. Type of metallic coating (zinc or aluminum-zinc alloy) (Section 6.1.2); 5.1.4. AASHTO designation and date of issue; 5.1.5. Type of pipe (Section 4.1); 5.1.6. Diameter of circular pipe (Table 8), or span and rise o
23、f pipe-arch section (Tables 10, 11, or 12); 5.1.7. Length, either total length or length of each piece and number of pieces; 5.1.8. Description of corrugations (Section 7.2); 5.1.9. Sheet thickness (Section 8.1.2); 5.1.10. For Type I and Type II pipe, the pipe fabrication method, whether with annula
24、r corrugations or helical corrugations (Section 7.1.1) (Note 1); 5.1.11. Coupling bands, number, and type (Section 9.1) if special type is required; 5.1.12. Gaskets for coupling bands, if required (Section 9.3); 5.1.13. For Type III pipe, class of perforations, if other than Class 1 (Section 8.3.2);
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