A 50-kip vertical downward column load (P) acts at the center of a 4-ft-square (4-ft wide by 4-ft long) normal-weight reinforced concrete footing (Yconc = 150 pcf)). The bottom of this shallow footing is 3 ft %3D below the level ground surface, and the top of the footing is flush with the ground surface. Laboratory testing shows the soil from the ground surface to at least 15-ft depth is uniform clay with a total unit weight of 120 pcf and an undrained shear strength (Su) of 1.0 ksf. The long-term groundwater table is at a depth of 10 ft below the ground surface. Use the above information to answer the following two questions. Compute the weight of the foundation, Wf. Answer: Okips Oksf Okcf Compute the gross bearing pressure (contact pressure) at the base of the footing that is imposed on the underlying soil by the footing and column load. Answer: Oksf Okips

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A footing is carrying a design column load of 22 k and a moment of 5 k-ft in one direction.The footing will be founded on sand at a depth of 2 ft. The water table is 3 ft below the groundsurface. Design the footing width for a square footing that will carry the design loads and meetthe presumptive allowable bearing pressure per the International Building Code.