Allowable Bearing Pressure from FS
Easyallowable bearingfactor of safety
A strip footing has an ultimate bearing capacity of 160.5 kPa. With a factor of safety of 3, the allowable bearing pressure is most nearly:
- A26.8 kPa
- B107 kPa
- C53.5 kPa
- D161 kPa
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Answer: C. 53.5 kPa
qallow = qult/FS = 160.5/3 = 53.5 kPa. Using FS = 1.5 by mistake gives 107 kPa.
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