PROBLEM 3: Determine the required width and steel reinforcements of the wall footing shown in the...

 

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PROBLEM 3: Determine the required width and steel reinforcements of the wall footing shown in the figure. Check also the adequacy of the footing thickness. Use 25 mm diameter main bars and 16 mmd diameter temperature bars with fy-275 MPa. Use fe' 25 MPa. Use load factor of 1.2 DL+1.6 LL. Unit weight of soil 16 kN/m' and for concrete is 24 kN/m'. Effective depth is 390 mm. P- 200 kN/m P.- 180 kN/m H,-60 kN/m H. - 30 kN/m 0.30 m NATURAL GRADY LNE 0.46 m PROBLEM 3: Determine the required width and steel reinforcements of the wall footing shown in the figure. Check also the adequacy of the footing thickness. Use 25 mm diameter main bars and 16 mmd diameter temperature bars with fy-275 MPa. Use fe' 25 MPa. Use load factor of 1.2 DL+1.6 LL. Unit weight of soil 16 kN/m' and for concrete is 24 kN/m'. Effective depth is 390 mm. P- 200 kN/m P.- 180 kN/m H,-60 kN/m H. - 30 kN/m 0.30 m NATURAL GRADY LNE 0.46 m

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