Slab Culvert Design as a Review

Culverts are the monolithic structure made to pass across a roadway, railway lines etc. Soil strengthening is most to balance the flood water on both sides. It follows the traffic, water deigning, walking purpose, and any other activity is taken on culverts. The risk follow water level and up word and downward flooding is most important earth to reduce, water level reducing risk for the flooding. The structures to accomplish such water flow and traffic flow without any disturbance flow across the road are called culverts, small and major bridges depending on their span such as major span, lesser span it is totally depend on water flowing discharge. Culverts are commonly used both as cross drains for channel release and to pass water under a road at natural drainage and river crossings. Drains can be of changed forms such as circular arch, span, flat slab etc. Culverts can be built with different substantial material such as masonry, concrete, Bricks, stone or reinforced cement concrete. The structural elements are required to be designed to withstand to safety point and design structure and economical with all criteria are competed such as maximum bending moment and shear force. This research Paper provides full thoughts on the provisions in the Codes, design criteria, considerations and justification of all the above aspects on design. Culverts are required to be provided under earth embankment for crossing of water course like streams, Nallas across the embankment as road embankment cannot be allowed to obstruct the natural water way without any obstruction. The structural design involves consideration of load cases Slab empty, full, surcharge loads and design criteria are covered. And factors like live load, actual width, braking force, dispersal of load through fill, impact factor, co-efficient of earth compression etc. Applicable IRC Codes are compulsory to be mentioned in the examination and design of Slab ducts. The aim of this project is to analyse the Slab Culvert using STAAD PRO software. The structural basics of Slab Culvert are designed to resist maximum bending moment and shear force. The results obtained from STAAD in Research paper are almost similar to manual calculations as per the authors are suggested. The factor consideration cushion Depth, coefficient of earth pressure for lateral pressures on walls, width or angle of dispersion for live loads on Slab without cushion and with cushion for structural deformations are important items. The IS standard requirements in the design manual for roads and bridges (IRC-6-2000, IS 21- 2000) is used in the structural designing of concrete Slab Culverts. Keywords: culvert, types of culverts, IRC Condition, Software, Percent reinforcement, Pressure Cases, Side walls, Top slab.