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a 300 mm thick footing slab supports a 300 mm thick concrete wall carrying uniform service dead load of 214.31 kN/m and service live load of 145.94 kN/m. the base of the wall footing slab is 1.2 m from the ground surface. design parameters are as follows: ysoil = 16 kN/m^3, yconci = 24 kN/m^3. qa = 215.46 kPa. f'c = 27 MPa and fy = 420 MPa

a 300 mm thick footing slab supports a 300 mm thick concrete wall carrying uniform service dead load of 214.31 kN/m and service live load of 145.94 kN/m. the base of the wall footing slab is 1.2 m from the ground surface. design parameters are as follows: ysoil = 16 kN/m^3, yconci = 24 kN/m^3. qa = 215.46 kPa. f'c = 27 MPa and fy = 420 MPa

Principles of Foundation Engineering (MindTap Course List)
Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter17: Retaining Walls
Section: Chapter Questions
Problem 17.1P
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a 300 mm thick footing slab supports a 300 mm thick concrete wall carrying uniform service dead load of 214.31 kN/m and service live load of 145.94 kN/m. the base of the wall footing slab is 1.2 m from the ground surface. design parameters are as follows: ysoil = 16 kN/m^3, yconci = 24 kN/m^3. qa = 215.46 kPa. f'c = 27 MPa and fy = 420 MPa.

1. calculate the required center to center spacing of 16 mm bars for flexure if the maximum factored moment in the slab is 75 kN.m

a. 150 mm

b. 180 mm

c. 210 mm

d. NOTA

52. calculate the ultimate beam shear stress on the footing slab if the footing slab is 2.1 m wide.

a. 1.25 MPa

b. 0.74 MPa

c. 0.87 MPa

d. 0.96 MPa

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