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DESIGN OF SPREAD FOOTINGSubject:
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PIPE SUPPORT FOUNDATION
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Design Code:
Designed By:
Date:
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ACI 318-07Engr. WBL15-déc.-25
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Output
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DESIGN OF ISOLATED FOOTING
FOOTING/COLUMN DESIGNATION:
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Density Of Concrete
w =24 kN/m³FOOTING NO.F1
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Density Of Soil
g =18 kN/m³PEDESTAL NO.C1
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Depth Of Foundation
h =0,2
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Soil Bearing Capacity
 r =153.59
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(Foundation design basis)
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Gross SBC rg =#VALUE!#NAME?
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(Increase in SBC is not allowed.)
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Gross SBC rg =#VALUE!#NAME?
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(Increase in SBC is allowed.)
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fc'=21 N/mm²
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fy =275 N/mm²
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Length Of Footing
L =1,20 m
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Width Of Footing
W =1,20 m
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Thickness of Fdtn.
 t =0,30 m
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Width Of Pedestal
cw =0,40 m
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Length Of Pedestal
cL =0,20 m
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Height Of Pedestal
hp =2,00 m
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Coefficient Of Friction
m =0,5
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Ground Water Table Ht.
hw =0,00 m
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0,4
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0,4
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0,50,5
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1.0 Load Calculation for Footing & Soil:-
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Self Wt. Of Footing
wf = 10,37 kN#NAME?
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Weight of Soil
 ws =-2,45 kN#NAME?
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Self Wt. Of Pedestal
wp = 3,84 kN#NAME?
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(Not considered here since it is modelled in STAAD)
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Weight of Footing + Soil
W =11,76 kN
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INPUT:- INPUT STAAD SUPPORT REACTION (Units, kN, kN-m)
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JOINTLOAD CASEFORCE-XFORCE-YFORCE-ZMOM-XMOM-YMOM Z
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140130000,47
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F1-C15-0,2112-0,42-0,60,071,02
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6-0,1652-0,31-0,450,050,88
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703,26-0,47-0,460,040,47
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8-0,164,43-0,67-0,790,080,88
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901,95-0,47-0,460,040,28
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1001,950000,28
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2.0 Check Maximum and Minimum Pressure at Footing Base:
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Area of Footing
 A =1,44 m²#NAME?
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Section Modulus
Zxx =0,29 m³#NAME?
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Section Modulus
 Zzz =0,29 m³#NAME?
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Total Vertical Load
 Pu =24,76 kN
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P/A =17,20 kN/m²
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Mxx/Zxx =0 / 0,288
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Mxx/Zxx =0,000kN/m2
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Mzz/Zzz =0,47 / 0,288
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Mzz/Zzz =1,632kN/m2
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Maxi.Soil Pressure pmax =
17,2 + 0 + 1,632
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 rmax =18,84kN/m2#VALUE!#VALUE!
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#VALUE!
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