Question

A reinforced concrete lintel is required to have a breadth of 225 mm and to carry a total inclusive uniform load of 40 kN over a span of 3 m when simply supported at each end. The permissible stresses are 7.0 N/mm2 and 140 N/mm2 for the concrete and steel respectively and m = 15. Determine the effective depth required for the lintel and also the area of reinforcement required.

Answer 1

brad th et ink 2 22s 3m 40 3 23.33 Km 10 (922 2 6Kri-nm. 2 1S 5 18t ebe 2.068 vaN S1emus Semanete Steel equaims Ast Xa 40 2 Astx aC 0 R 1ラメ106 138-55 x10 o8 27 138-55710 Ast- そ28 mm 270 AST X I40 225 x0-68xd AsT 6.26 2 36.22 X10 Ast 19032 mm Ast Scanned S Cam'Scannens