No Calculation Ref Weight of Structure = 600 kg

1 Total Weight (Weq) = 5886 N Weq = 5.89 KN 5.886

KN 2 Base Dimension of equipment = 1m x 1.2m

3 Foundation Size = 1.4 x 1.4 x 0.3 m thick

4 Weight of Fnd = 1.4 x 1.4 x 0.3 x= 14.112 kN 14.112

kN 5 Total Vertical Load = 5.886 + 14.112 kN

= 19.998 kN

6 Assume Allowable Soil Pressure (P) = 65 65

7 Calculate Overturning Moment ( Mot )

Seismic acceleration = 0.2 as per IEE STD C 57.114

Weq = 5.89 KN Calculated

Horizonta Load ( 0.2 Weq ) = 0.2 x 5.89= 1.18 KN 1.18

KN

Verical Load = 2/3 ( 0.2x Weq ) = 0.78 KN 0.78KN

8 Overturning to be ignored due to the eccentricity = 0 e= 0The equipment will be placed at the centre of Foundation

9 Soil Bearing Pressure against Pressure from Equipment

Pmax = (N/A) + - (Mtot/S)

A= 1.4 x 1.4 1.96m2

S == 0.46

Pmax = 19.998 / 1.96= 10.20 10.20

kN /m2

No Calculation Ref

24kN /m3

kN /m2

kN /m2

m2

db2/6m3

kN /m2

Therefore

10.20 < 65 Ok

10Calculating Factor of Safety against overturning must be greater than 1.5

Weight of Equipment = 5.89 KN

Weight of FND = 14.112 KN

((5.89 x 1.4/2 ) + ( 14.112 x 1.4 /2 ))

= 13.9986 kN .m

Fs =

= 13.9986 > 1.5 OK OK

11 AREA OF STEEL

Steel must be 0.0018 x Concrete Gross Area

As = 0.0018 x ( 1.4 x 1.4 ) = 0.003528=

Use MESH 617 with 50mm Cover from Top

kN /m2

Calculate Moment of Resistance ( MR )

MR=

MR / Mtot

m2/m of slab length 3528mm2 /m of slab length