PSAD SITUATION 19: Footing Subject to Axial Force and Moment
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- Опубликовано: 3 фев 2025
- CELE Past Board Exam Problem
Situation 19: A rectangular footing B = 2.5 m wide and L = 3 m long supports a concentrically located square column 600 x 600 mm.
Given: Footing ultimate loads
Axial Load, Pu = 1500 kN
Moment about y-axis, My = 180 kN-m
Effective depth of footing = 350 mm
Concrete, fc’ = 20.7 MPa
Steel, fy = 415 MPa
Reduction factor for shear = 0.75
1. Find the maximum nominal punching shear stress (MPa) due to axial load only.
2. What is the maximum nominal wide beam shear stress (MPa) due to the given footing loads?
3. How much additional moment (kN-m) can the footing carry without causing uplift of the footing?
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