A 3.5 m square footing is proposed to be used to support a 521 mm x 376 mm RC column loaded with 675 kN dead load and 800 kN live load. The bottom of the footing is 1.9 m below the ground. Assume soil weighs 19 kN/m and the allowable soil bearing pressure is 286 kPa. The thickness of the footing is 567 mm. f' = 21 MPa and f = 420 MPa. It is to be reinforced with 20 mm diameter. Use 24 kN/m as the unit weight of concrete. Note: For two-way shear, use an effective depth measured from the top of the footing until the top of the bottom-most bar (d ) What is the ratio of the Demand Shear Force and the Capacity in Two Way Shear? (Vu/phiVn) Answer: 0.9874 What is the ratio of the Demand Shear Force to Capacity in One Way Shear? (Vu/phiVn) Answer: 0.4731
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A 3.5 m square footing is proposed to be used to support a 521 mm x 376 mm RC column loaded with 675 kN dead load and 800 kN live load. The bottom of the footing is 1.9 m below the ground. Assume soil weighs 19 kN/m and the allowable soil bearing pressure is 286 kPa. The thickness of the footing is 567 mm. f' = 21 MPa and f = 420 MPa. It is to be reinforced with 20 mm diameter. Use 24 kN/m as the unit weight of concrete.
Note: For two-way shear, use an effective depth measured from the top of the footing until the top of the bottom-most bar
(d ) What is the ratio of the Demand Shear Force and the Capacity in Two Way Shear? (Vu/phiVn) Answer: 0.9874
What is the ratio of the Demand Shear Force to Capacity in One Way Shear? (Vu/phiVn) Answer: 0.4731
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