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CE Board May 2012 A 450 mm square interior column carries a dead load of 825...

CE Board May 2012

A 450 mm square interior column carries a dead load of 825 KN and a live load of 668 KN. A rectangular footing is required to carry the column loads such that the length of the long side must be equal to twice the width of the short side. Assume base of footing is 1.5 m below the ground surface. Allowable bearing pressure of soil is 15.74 KN/m3 and that of concrete is 23.5 KN/m3. Use normal weight concrete. Thickness of footing is 0.60 m. Determine the steel requirements in the short and long direction.

Engineering   Civil-Engineering   
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Answer #1

Assumed Data: fc' = 27.6 MPa, fy = 415 MPa.

Allowable bearing pressure = 190 kN/m2

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