PILE CAP DESIGN www.theengineeringcommunity.org.xlsx

	A	B	C	D	E	F	G	H	I	J	K
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3	PROJECT :						DEALT :	Femi	Yusuff
4	FILE PATH:						DATE :
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7		Concrete,Steel	25	410	N/mm2
8		Pile Dia (hp)	600	mm
9		Pedestal Dim (a,b)	900	2700	mm				1800
10		Spacing factor of piles (α)
11		Spacing between centers of piles (l)	1800	mm
12		Thickness of pile cap (h)	1300	mm
13		Width of pile cap	900	mm		900
14		Length of pile cap	2700	mm
15		Tensile forces to be resisted by reinforcement
16		Load on column (N)	650	ton
17		Effective depth of pile cap (d)	1200	mm
18									2700
19		Neglecting Column Size	244	ton					PLAN
20											b
21		Taking size of column into consideration	1	ton						0.5d
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23		Tensile steel required (Sq. In)	16,55
24		Tensile steel required (Sq.cm)	0,61
25		Reinforcement @ 0.15% of Pile cap area	1755,00			1300
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27		Bar Dia	20
28		Number Of Bars Required	5,6
29		Number Of Bars Provided	6
30		Ast Provided	1885,02
31			SAFE						#6-20 dia
32		DESIGN FOR SHEAR							B/W
33		Oneway Shear
34		One-Way shear @ 0.5d distance from face of pedestal	600	mm
35		Shear Force	4875	kN
36		Percentage of Steel,Pt	0,17	%
37		Shear strenth of concrete,Tc	0,30	N/mm2
38		Shear stress,Tv	1,50	N/mm2
39		Vus	4551000	N
40		Consider 6-legged bars of dia	12	mm	108,36			600 Ø		600 Ø
41		Shear spacing,Sv	61,15018378	mm					SECTION
42		Spacing Provided	150	mm
43		Provide 12 mm dia bars at a spacing of 150 mm c/c
44		Two-Way Shear
45		punching shear @d/2 dist around the pedestal face
46		Shear force	4875	kN
47		Punching shear section bo	3300	mm
48		shear stress Tv	1,23	N/mm2
49		Allowable shear stress,Tc	1,25	N/mm2
50		Safe, provide nominal shear rein
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