A wall footing is to support a 300mm wide reinforcement concrete wall with a DL of 290 kN/m and a LL of 220 kN/m. The bottom of the footing is 1.2m below the final grade. Assume the soil weighs 15.74 kN/m³ and the allowable soil pressure is 193 kPa. fc' = 20.7 MPa Concrete Cover = 75mm fy = 415 MPa Unit weight of concrete = 23.5 kN/m³ 1. Compute the width of footing. Assume thickness of footing = 500mm 2. Determine the assumed thickness if it is safe. 3. Compute the spacing of 22mm Ø longitudinal temperature and shrinkage steel.

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter8: Stresses In A Soil Mass
Section: Chapter Questions
Problem 8.22P: A flexible circular footing of radius R carries a uniform pressure q. Find the depth (in terms of R)...
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A wall footing is to support a 300mm wide reinforcement concrete wall with a DL of 290 kN/m
and a LL of 220 kN/m. The bottom of the footing is 1.2m below the final grade. Assume the soil
weighs 15.74 kN/m³ and the allowable soil pressure is 193 kPa.
fc' = 20.7 MPa
Concrete Cover = 75mm
fy = 415 MPa
Unit weight of concrete = 23.5 kN/m³
1.
Compute the width of footing. Assume thickness of footing = 500mm
2. Determine the assumed thickness if it is safe.
3.
Compute the spacing of 22mm Ø longitudinal temperature and shrinkage steel.
Transcribed Image Text:A wall footing is to support a 300mm wide reinforcement concrete wall with a DL of 290 kN/m and a LL of 220 kN/m. The bottom of the footing is 1.2m below the final grade. Assume the soil weighs 15.74 kN/m³ and the allowable soil pressure is 193 kPa. fc' = 20.7 MPa Concrete Cover = 75mm fy = 415 MPa Unit weight of concrete = 23.5 kN/m³ 1. Compute the width of footing. Assume thickness of footing = 500mm 2. Determine the assumed thickness if it is safe. 3. Compute the spacing of 22mm Ø longitudinal temperature and shrinkage steel.
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