1) The footing is subjected to a moment of 126 kN-m and a total vertical load of 280 kN. Find the minimum width of the footing to prevent uplift. 2) Given: Resisting moment, Mr = 440 kN − m Overturning moment, Mo = 260 kN − m Total vertical load = 265 kN Determine the minimum width of the following to prevent uplift. 3) Given: Footing width = 3 m Resisting moment, Mr = 500 kN − m Overturning moment, Mo = 265 kN − m Total vertical load = 335 kN
1) The footing is subjected to a moment of 126 kN-m and a total vertical load of 280 kN. Find the minimum width of the footing to prevent uplift. 2) Given: Resisting moment, Mr = 440 kN − m Overturning moment, Mo = 260 kN − m Total vertical load = 265 kN Determine the minimum width of the following to prevent uplift. 3) Given: Footing width = 3 m Resisting moment, Mr = 500 kN − m Overturning moment, Mo = 265 kN − m Total vertical load = 335 kN
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Situation 1: A footing supports a 250 mm thick wall:
Given:
Allowable soil bearing pressure = 192 kPa
Thickness of footing = 350 mm
Concrete, f
′
c = 27.5 MPa
Steel, fy = 415 MPa
1) The footing is subjected to a moment of 126 kN-m and a total vertical load of 280 kN. Find the minimum width of
the footing to prevent uplift.
2) Given:
Resisting moment, Mr = 440 kN − m
Overturning moment, Mo = 260 kN − m
Total vertical load = 265 kN
Determine the minimum width of the following to prevent uplift.
3) Given:
Footing width = 3 m
Resisting moment, Mr = 500 kN − m
Overturning moment, Mo = 265 kN − m
Total vertical load = 335 kN
Determine the maximum soil bearing pressure?
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