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Calculate the number of bars required in one direction.

Calculate the number of bars required in one direction.

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 4.7 m square footing is proposed to be used to support a 398 mm x 398 mm RC column loaded with 860 kN dead load and 654 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 285 kPa. The thickness of the footing is 552 mm. f = 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. Use an effective depth measured from the top of the footing until the center of the bottom-most bar Calculate the number of bars required in one direction. Provisions are given below for the minimum area of main reinforcements Reinforcement Type fy. MPa ima Nimist Deformed Bars < 420 MPa 0.0020A Deformed Bars and Welded Wire 2 420 MPa Reinforcement Greater of: 00018 x 420 0.0014A
Transcribed Image Text:A 4.7 m square footing is proposed to be used to support a 398 mm x 398 mm RC column loaded with 860 kN dead load and 654 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 285 kPa. The thickness of the footing is 552 mm. f = 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. Use an effective depth measured from the top of the footing until the center of the bottom-most bar Calculate the number of bars required in one direction. Provisions are given below for the minimum area of main reinforcements Reinforcement Type fy. MPa ima Nimist Deformed Bars < 420 MPa 0.0020A Deformed Bars and Welded Wire 2 420 MPa Reinforcement Greater of: 00018 x 420 0.0014A
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