A square footing 2.5m x 2.5 m supports a square column 300mm x 300mm at its center. Concrete cover to bar centroid = 100mm. Ultimate load combination is 1.2DL + 1.6L. Column loads aee service conditions: DL= 680 KN LL = 400KN f'c = 20.7 Mpa fy=275 MPa

Structural Analysis
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Chapter2: Loads On Structures
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A square footing 2.5m x 2.5 m supports a square column
300mm x 300mm at its center. Concrete cover to bar centroid
= 100mm. Ultimate load combination is 1.2DL + 1.6L.
Column loads aee service conditions:
DL= 680 KN LL = 400KN
f'c = 20.7 Mpa fy = 275 MPa
Calculate the nominal punching-shear stress acting at the
critical section of the footing slab if the thickness of the slab is
450 mm.
Transcribed Image Text:A square footing 2.5m x 2.5 m supports a square column 300mm x 300mm at its center. Concrete cover to bar centroid = 100mm. Ultimate load combination is 1.2DL + 1.6L. Column loads aee service conditions: DL= 680 KN LL = 400KN f'c = 20.7 Mpa fy = 275 MPa Calculate the nominal punching-shear stress acting at the critical section of the footing slab if the thickness of the slab is 450 mm.
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