A 1.9 m wide x 0.35 m thick RC footing is to be provided for a 250mm thick RC wall. The wall carries a dead load of 289 kN/m and a live load of 328 kN/m of the wall. The gross allowable soil pressure is 313 kPa. The bottom of the footing is 954 mm below the ground. Use f'c = 21 MPa and fy = 420 MPa. Unit weight is 23.6 kN/m3 for concrete and 18.4 kN/m3 for the soil backfill. Calculate the ratio of the actual soil pressure to net effective pressure. (q/qeff ).
A 1.9 m wide x 0.35 m thick RC footing is to be provided for a 250mm thick RC wall. The wall carries a dead load of 289 kN/m and a live load of 328 kN/m of the wall. The gross allowable soil pressure is 313 kPa. The bottom of the footing is 954 mm below the ground. Use f'c = 21 MPa and fy = 420 MPa. Unit weight is 23.6 kN/m3 for concrete and 18.4 kN/m3 for the soil backfill. Calculate the ratio of the actual soil pressure to net effective pressure. (q/qeff ).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 1.9 m wide x 0.35 m thick RC footing is to be provided for a 250mm thick RC wall. The wall carries a dead load of 289 kN/m and a live load of 328 kN/m of the wall. The gross allowable soil pressure is 313 kPa. The bottom of the footing is 954 mm below the ground. Use f'c = 21 MPa and fy = 420 MPa. Unit weight is 23.6 kN/m3 for concrete and 18.4 kN/m3 for the soil backfill.
Calculate the ratio of the actual soil pressure to net effective pressure. (q/qeff ).
Transcribed Image Text:A 1.9 m wide x 0.35 m thick RC footing is to be provided for a 250mm
thick RC wall. The wall carries a dead load of 289 kN/m and a live load of
328 kN/m of the wall. The gross allowable soil pressure is 313 kPa. The
bottom of the footing is 954 mm below the ground. Use f' = 21 MPa
and fy= 420 MPa. Unit weight is 23.6 kN/m3 for concrete and 18.4
kN/m3 for the soil backfill.
Calculate the ratio of the actual soil pressure to net effective pressure.
(q/aeff ).
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