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A 300 mm concrete wall supports a dead load of 300 kN/m and a live load of 220 kN. The allowable bearing pressure is 240 kN/m². and the level of the bottom of the footing is 1.2 m. below the ground surface. Assume concrete weighs 24 kN/m³ and that of soil is 16 kN/m³. fc' = 28 MPa, fy = 248 MPa. Use 28 mm ø reinforcing bars. Thickness of footing = 600 mm, steel covering 100 mm. a. Compute the width of the wall footing b. Assuming the depth is safe in shearing, what is the moment at the critical section

A 300 mm concrete wall supports a dead load of 300 kN/m and a live load of 220 kN. The allowable bearing pressure is 240 kN/m². and the level of the bottom of the footing is 1.2 m. below the ground surface. Assume concrete weighs 24 kN/m³ and that of soil is 16 kN/m³. fc' = 28 MPa, fy = 248 MPa. Use 28 mm ø reinforcing bars. Thickness of footing = 600 mm, steel covering 100 mm. a. Compute the width of the wall footing b. Assuming the depth is safe in shearing, what is the moment at the critical section

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 300 mm concrete wall supports a dead load of 300 kN/m and a live load of 220 kN. The allowable bearing pressure is 240 kN/m². and the level of the bottom of the footing is 1.2 m. below the ground surface. Assume concrete weighs 24 kN/m³ and that of soil is 16 kN/m³. fc' = 28 MPa, fy = 248 MPa. Use 28 mm ø reinforcing bars. Thickness of footing = 600 mm, steel covering 100 mm. a. Compute the width of the wall footing b. Assuming the depth is safe in shearing, what is the moment at the critical section
Transcribed Image Text:A 300 mm concrete wall supports a dead load of 300 kN/m and a live load of 220 kN. The allowable bearing pressure is 240 kN/m². and the level of the bottom of the footing is 1.2 m. below the ground surface. Assume concrete weighs 24 kN/m³ and that of soil is 16 kN/m³. fc' = 28 MPa, fy = 248 MPa. Use 28 mm ø reinforcing bars. Thickness of footing = 600 mm, steel covering 100 mm. a. Compute the width of the wall footing b. Assuming the depth is safe in shearing, what is the moment at the critical section
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