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en the two layers of the bars.

en the two layers of the bars.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 4.31 m square footing is proposed to be used to support a 331 mm x 361 mm RC column loaded with 586 kN dead load and 561 kN live load. The bottom of the footing is 2 m below the ground. Assume soil weighs 19 kN/m3 and the allowable soil bearing pressure is 299 kPa. The thickness of the footing is 490 mm. f'c = 21 MPa and fy = 420 MPa. It is to be reinforced with 20 mm diameter. Use 24 kN/m3 as the unit weight of concrete. What is the ratio of the Demand Shear Force and the Capacity in Punching shear? Use an effective depth located midway between the two layers of the bars.
Transcribed Image Text:A 4.31 m square footing is proposed to be used to support a 331 mm x 361 mm RC column loaded with 586 kN dead load and 561 kN live load. The bottom of the footing is 2 m below the ground. Assume soil weighs 19 kN/m3 and the allowable soil bearing pressure is 299 kPa. The thickness of the footing is 490 mm. f'c = 21 MPa and fy = 420 MPa. It is to be reinforced with 20 mm diameter. Use 24 kN/m3 as the unit weight of concrete. What is the ratio of the Demand Shear Force and the Capacity in Punching shear? Use an effective depth located midway between the two layers of the bars.
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