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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

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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: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
(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
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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