![]() ![]() Nominal load per metre = 24 × 0.2 = 4.8kN/m Maximum height of water inside the culvert is 1.8m above the invert level of the culvert.īackfill material will be Class 6N with a density (γ) = 19kN/m 3.įill over the culvert consists of 0.5m of Class 6N overlaid with 0.3m of road sub-base with a density (γ) = 20kN/m 3 and 0.2m of carriageway construction with a density (γ) = 24kN/m 3Ĭonsider loading on 1m strip of the culvert.Īssume a wall thickness of 300mm and concrete density (γ) = 25kN/m 3 Maximum height of ground water is 1m above the invert level of the culvert. The ground investigation report shows the founding strata to be a cohesionless soil having an angle of shearing resistance (φ) = 32° and a safe bearing capacity of 300kN/m 2 and classified as 'not hard' material. The bridge site is located south east of Oxford (to establish the range of shade air temperatures). Analyse the culvert using a unit strip method. ![]() The example is presented to promote comment and discussion.ĭesign the in-situ concrete culvert shown below to carry HA and 45 units of HB loading. You are solely responsible for adequate protection and backup of the data and equipment used in connection with using software LRFD Box Culvert Program.Buried Box Design Example to BD 31 The following example is not a definitive solution for the design of a box culvert, but provides one solution to demonstrate the principles involved when considering design standards BD 31 and BS 5400. The use of the software and any damage done to your systems. PCWin has not developed this software LRFD Box Culvert Program and in no way responsible for PCWin free download center makes no representations as to the content of LRFD Box Culvert Program version/build 3.2 is accurate, complete, virus free or do not infringe the rights ![]() There are inherent dangers in the use of any software available for download on the Internet. LRFD Box Culvert Program 3.2 download version indexed from servers all over the world. Mathcad enables engineers to easily perform, document and share. LRFD Box Culvert Program is a Mathcad 14 program that designs concrete box culverts, wingwalls, headwalls, and cutoff walls in accordance with the AASHTO LRFD Bridge Specification. ![]()
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