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1.1 This practice covers the structural design of reinforcement for fittings in factory-made, round corrugated steel pipe, conforming to Specifications or , for use as storm and sanitary sewers and other buried applications. This practice is for fittings on pipe installed in a trench or embankment and subjected to earth loads and live loads. It must be recognized that a buried corrugated pipe is a composite structure made up of the steel ring and the soil envelope, and both elements play a vital part. Both main and branch pipe shall be designed in accordance with Practice and installed in accordance with Practice .
1.2 This practice covers the structural design of reinforcement for fittings such as those for branch pipes. Refer to Section for design limitations.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A36/A36M Specification for Carbon Structural Steel
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A307 Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60000 PSI Tensile Strength
A760/A760M Specification for Corrugated Steel Pipe, Metallic-Coated for Sewers and Drains
A762/A762M Specification for Corrugated Steel Pipe, Polymer Precoated for Sewers and Drains
A796/A796M Practice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, and Arches for Storm and Sanitary Sewers and Other Buried Applications
A798/A798M Practice for Installing Factory-Made Corrugated Steel Pipe for Sewers and Other Applications
A902 Terminology Relating to Metallic Coated Steel Products
A929/A929M Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process for Corrugated Steel Pipe
F568M Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners (Metric)
ICS Number Code 77.140.85 (Iron and steel forgings)
UNSPSC Code 40170000(Pipe piping and pipe fittings)
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ASTM A998 / A998M-18, Standard Practice for Structural Design of Reinforcements for Fittings in Factory–Made Corrugated Steel Pipe for Sewers and Other Applications, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top