Box culvert design according to IRC 6 (Standard Specifications and Code of Practice for Road Bridges, Section II) involves several considerations for structural strength, stability, and durability. Here are the main design bases to consider:
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- Dead Load: Weight of the box culvert, including the self-weight of the concrete, parapets, and other permanent structural components.
- Live Load: Vehicular load as per IRC 6, generally adopting IRC Class A, AA, or 70R loading, depending on the culvert’s location and importance.
- Impact Load: Apply an impact factor as per IRC 6 if vehicles can travel directly over the culvert, based on the design speed and load class.
- Surcharge Load: Lateral earth pressure due to embankment or backfill material on top of the box culvert.
- Water Load: Hydrostatic pressure exerted by water on the culvert, considering maximum water levels and pressure distributions.
- Earth Pressure: Lateral and vertical earth pressure, depending on soil type, compaction, and depth of the cover.
Below files are available for download
- DESIGN OF BARREL BOX CULVERT .xls – Excel spread sheet
- DESIGN OF BARREL BOX CULVERT .pdf
Product images are the reference to Excel sheet for DESIGN OF BARREL BOX CULVERT “Do write the details in the Yellow cells only and do not make edit in other cell as the excel sheet is not protected with password and you can edit anywhere in the sheet, accidental edits in the cells may lead to errors in the design sheet due to overriding of formula by values edited by you”
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