A square column footing is to support a 500-mm square tied column that carries service dead...

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A square column footing is to support a 500-mm square tied column that carries service dead load of 800 kN and service live load of 1000 kN. The column is reinforced with eight 25-mm-diameter bars. The base of the footing is 1.50 m below the natural grade where the allowable soil pressure is 310 kPa. The soil above the footing has unit weight of 15.6 kN/m². Assume fy = 275 MPa. f = 27.5 MPa, and unit weight of concrete as 23.50 kN/m³. Design the footing. Use 25 mm main bars and 75 mm clear cover. Use NSCP 2015. A square column footing is to support a 500-mm square tied column that carries service dead load of 800 kN and service live load of 1000 kN. The column is reinforced with eight 25-mm-diameter bars. The base of the footing is 1.50 m below the natural grade where the allowable soil pressure is 310 kPa. The soil above the footing has unit weight of 15.6 kN/m². Assume fy = 275 MPa. f = 27.5 MPa, and unit weight of concrete as 23.50 kN/m³. Design the footing. Use 25 mm main bars and 75 mm clear cover. Use NSCP 2015.

Answer rating: 100% (QA)

Step 1 Given b 500 mm DL 800 KN LL 1000 KN 825 mm rebars Df 15 m q310 kPa fy 275 MPa fc 275 MPa Step ... View the full answer