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1.1 This practice is intended for the structural design of corrugated aluminum pipe and pipe-arches, and aluminum structural plate pipe, pipe-arches, and arches for use as culverts and storm sewers and other buried conduits. This practice is for pipe installed in a trench or embankment and subjected to highway, railroad, and aircraft loadings. It must be recognized that a buried corrugated aluminum pipe is a composite structure made up of the aluminum ring and the soil envelope, and both elements play a vital part in the structural design of this type of structure.
1.2 Corrugated aluminum pipe and pipe-arches shall be of annular fabrication using riveted seams, or of helical fabrication having a continuous lockseam.
1.3 Structural plate pipe, pipe-arches, and arches are fabricated in separate plates that when assembled at the job site by bolting form the required shape.
1.4 This specification is applicable to design in inch-pound units as Specification B790M. SI units are shown in brackets in the text for clarity, but they are the applicable values when the design is done in accordance with Specification B790M.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B745/B745M Specification for Corrugated Aluminum Pipe for Sewers and Drains
B746/B746M Specification for Corrugated Aluminum Alloy Structural Plate for Field-Bolted Pipe, Pipe-Arches, and Arches
B788/B788M Practice for Installing Factory-Made Corrugated Aluminum Culverts and Storm Sewer Pipe
B789/B789M Practice for Installing Corrugated Aluminum Structural Plate Pipe for Culverts and Sewers
D698 Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft3 (600 kN-m/m3))
D1556 Test Method for Density and Unit Weight of Soil in Place by Sand-Cone Method
D2167 Test Method for Density and Unit Weight of Soil in Place by the Rubber Balloon Method
D2487 Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
D2937 Test Method for Density of Soil in Place by the Drive-Cylinder Method
D6938 Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)
FAA StandardsACNo.150/5320-5B, Advisory Circular, Airport Drainage, Department of Transportation, Federal Aviation Administration, Publication No. SN-050-007-00149-5, 1970
ICS Number Code 23.040.15 (Non-ferrous metal pipes)
UNSPSC Code 70171802(Storm water drainage)