A building column carries ultimate loads of 5,500 kN vertical and 1,200 kN horizontal (acting 0.25 m
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A building column carries ultimate loads of 5,500 kN vertical and 1,200 kN horizontal (acting 0.25 m above ground surface). The column is founded on a 2.5-m square footing at a depth of 1.5 m. The soil
2
is a cohesionless sand with φʹ =32°, γmoist = 18.5 kN/m3, γsat = 19.5 kN/m3. The groundwater table is at a depth of 2.5 m below the ground surface.
a. Determine the limit bearing capacity of the footing.
b. Determine the factor of safety for the vertical load acting on the footing.
c. Compute the allowable lateral load this column can carry using a sliding factor of safety
of 1.5. Is the applied lateral load less than the allowable lateral load? Assume an interface friction angle of 0.7f.
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