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Standard Specification for Corrugated Steel Box Culverts
Name übersetzen
NORM herausgegeben am 1.4.2023
Bezeichnung normen: ASTM A964/A964M-23
Ausgabedatum normen: 1.4.2023
SKU: NS-1140791
Zahl der Seiten: 12
Gewicht ca.: 36 g (0.08 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
This specification covers standard requirements for material, geometric, and wall section properties of steel box culverts manufactured from corrugated plate or sheet, with or without attached stiffeners, for field assembly. Appropriate fasteners and optional materials such as steel invert plates and headwalls are also described. Applications for steel box culverts include conduits for gravity flow drainage of surface water such as culverts and storm drains, as well as for small bridges and grade separation structures such as pedestrian or vehicular underpasses, and utility tunnels. Material standards shall not include requirements for foundations, backfill, or the relationship between earth cover or live loads and strength requirements. Manufactured steel box culverts shall not include requirements for the hydraulic design of these structures. Steel box culverts shall be classified in five types: Type I, II, III, IV and V. The required design properties shall be determined for the crown and haunch segments of the box culvert and shall conform to the geometric dimensional limits. The corrugated plate material utilized for the shells of Type I, II, III, and IV box culverts shall be fabricated from steel sheet or plate conforming to the chemical, mechanical, thickness, shape, and coating requirements. Sampling and testing of corrugated plate material shall be conducted and shall conform to the required chemical composition, mechanical properties and coating weight.
Keywords:
bridge, box culvert, corrugated structural plate, culvert, galvanized steel, grade separation, low cover structure, low profile structure, storm sewer,, ICS Number Code 93.030 (External sewerage systems)
1. Scope | ||||||||||||||
1.1?This specification covers material, geometric, and wall section properties of steel box culverts manufactured from corrugated plate or sheet, with or without attached stiffeners, for field assembly. Appropriate fasteners and optional materials such as steel invert plates and headwalls are also described. Applications for steel box culverts include conduits for gravity flow drainage of surface water such as culverts and storm drains, as well as for small bridges and grade separation structures such as pedestrian or vehicular underpasses, and utility tunnels. 1.2?This specification does not include requirements for foundations, backfill, or the relationship between earth cover or live loads and strength requirements. These important design considerations are described in the AASHTO LRFD Bridge Design Specifications, Customary U.S. Units (LRFD Bridge Design Specifications, SI Units). 1.3?This specification does not include requirements for the hydraulic design of these structures. Hydraulic design, placement of 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 for Type I, II, and IV box culverts. Also listed are cross-sectional area and hydraulic design parameters for these sizes. Geometries for Type III, V and VI box culverts are available from manufacturers. 1.5?Appendix X2 lists manufacturers' suggested design properties for the box culvert types described in this specification, and for the spacing classes and material thicknesses typically available. 1.6?The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.7?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. |
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