SITUATION. A 300 mm thick concrete wall is to be centrally located on a footing. The allowable soil bearing pressure is 192 kPa. The footing is to be designed for a moment of 160 kN-m and a total vertical load of 320 kN. What should be the minimum footing width (m) to prevent uplift? 3.0 2.25 1.9 1.5
SITUATION. A 300 mm thick concrete wall is to be centrally located on a footing. The allowable soil bearing pressure is 192 kPa. The footing is to be designed for a moment of 160 kN-m and a total vertical load of 320 kN. What should be the minimum footing width (m) to prevent uplift? 3.0 2.25 1.9 1.5
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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L2

Transcribed Image Text:SITUATION.
A 300 mm thick concrete wall is to be centrally located on a footing. The allowable soil bearing
pressure is 192 kPa.
The footing is to be designed for a moment of 160 kN-m and a total vertical load of 320 kN.
What should be the minimum footing width (m) to prevent uplift?
3.0
2.25
1.9
1.5

Transcribed Image Text:(continuation)
Given: Total Vertical Load, P = 540 kN
Resisting moment = 1,080 kN-m
The footing width is 4 m. How much is the allowable overturning moment (kN-m) such that
there will be no tensile stress in the footing?
360
540
720
1080
(continuation)
Given:
Resisting Moment = 945 kN-m
Overturning Moment 315 kN-m
Total Vertical Load = 450 kN
Footing Width= 4.2 m
Which of the following gives the maximum soil pressure (MPa)?
214
161
107
321
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