footing carries concentrically a square column 0.40m x 0.40m. Design data: Column factored loads: DL = 570KN LL = 460kN Concrete cover to the centroid of footing reinforcement = 110mm %3D Concrete f'c = 21MPA Steel fy- 415MPA Allowable stresses at ultimate loads: For diagonal tension or two way action shear = 1.52MP. For wide-beam shear = 0.78MPA Maximum steel ratio for moment = 0.016 What is the minimum thickness (mm) of footing required for punching shear? b. Determine the minimum thickness (mm) of footing required for wide beam shear. Determine the minimum thickness (mm) of footing required for maximum moment. а.

Structural Analysis
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Chapter2: Loads On Structures
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4. A 2.10m x 2.10m footing carries concentrically a square column 0.40m x 0.40m.
Design data:
Column factored loads:
DL = 570KN
= 460KN
%3D
Concrete cover to the centroid of footing reinforcement = 110mm
Concrete f'c - 21MPA
Steel fy= 415MPA
%3D
%3D
Allowable stresses at ultimate loads:
For diagonal tension or two-way action shear = 1.52MPA
For wide-beam shear
0.78MPA
Maximum steel ratio for moment = 0.016
a. What is the minimum thickness (mm) of footing required for punching shear?
b. Determine the minimum thickness (mm) of footing required for wide beam shear.
Determine the minimum thickness (mm) of footing required for maximum moment.
C.
Transcribed Image Text:4. A 2.10m x 2.10m footing carries concentrically a square column 0.40m x 0.40m. Design data: Column factored loads: DL = 570KN = 460KN %3D Concrete cover to the centroid of footing reinforcement = 110mm Concrete f'c - 21MPA Steel fy= 415MPA %3D %3D Allowable stresses at ultimate loads: For diagonal tension or two-way action shear = 1.52MPA For wide-beam shear 0.78MPA Maximum steel ratio for moment = 0.016 a. What is the minimum thickness (mm) of footing required for punching shear? b. Determine the minimum thickness (mm) of footing required for wide beam shear. Determine the minimum thickness (mm) of footing required for maximum moment. C.
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