SITUATION 9. A 600mm x 600mm column is supported at the center of the pile cap shown in PFE-RCD-004. The piles are precast with diameter 300 mm. Dimensions are as follows:
a = 0.8 m b = 0.9 m
c = 1.20 m d = 0.8 m
Net load on footing at ultimate condition:
Pu = 2800 kN Mu = 210 kNm about horizontal axis
Effective depth of footing = 0.6 m
23. Calculate the punching shear stress around the square column. (Ans. 1.152 MPa)
24. Calculate the critical beam shear stress. (Ans. 0.610 MPa)
25. Calculate the critical design moment. (Ans. 840 kNm)