Design Table of Isolated Footings :
: M20
: Fe 500 TMT Bars
: 50mm (bottom) & 75mm (sides)
Grade of Concrete
Steel
Cover
Loa
d
Footing Size
“KN
LxB “m”
”
100 0.80 x 0.80
200 1.10 x 1.10
300 1.30 x 1.30
400 1.50 x 1.50
500 1.70 x 1.70
x
x
x
x
x
Least
dimension of
Column
Pedestal cm
30
30
30
30
40
S B C of Soil =
200 KN / m2
D
cm
Do
cm
Reinforcement
Area in each
Direction “cm2”
Reinforcements
on both
Directions
Development
Length
available “cm”
20
30
35
40
40
20
20
20
20
20
1.5
4.10
5.40
6.60
7.6
4-10 y
6-10 y
7-10 y
9-10 y
10-10 y
25
40
45
55
65
600
800
1000
1250
1500
1.90
2.10
2.40
2.60
2.90
1.90
2.10
2.40
2.60
2.90
40
40
45
45
50
45
60
60
70
75
20
20
20
20
20
9.10
11.7
14.8
18.8
22.70
12-10
15-10
19-10
17-12
21-12
y
y
y
y
y
75
85
95
105
115
1750
2000
2250
2500
2750
3000
3.20 x 3.20
3.40 x 3.40
3.60 x 3.60
3.80 x 3.80
3.90 x 3.9
4.10 x 4.10
50
60
60
65
65
65
90
90
90
100
100
105
30
30
30
30
30
30
25.9
32.9
34.70
37.60
41.80
47.0
23-12
30-12
31-12
19-16
22-16
24-16
y
y
y
y
y
y
130
135
145
160
165
175
Note : y - denotes Fe500 TMT bars.
Design Table of Isolated Footings :
Grade of Concrete
Steel
Cover
: M20
: Fe 500 TMT Bars
: 50mm (bottom) & 75mm (sides)
S B C of Soil =
250 KN / m2
200
300
400
500
1.00
1.20
1.40
1.50
x
x
x
x
1.00
1.20
1.40
1.50
Least
dimension
of Column
Pedestal
cm
30
30
30
40
600
800
1000
1250
1500
1.70
1.90
2.10
2.40
2.60
x
x
x
x
x
1.70
1.90
2.10
2.40
2.60
40
40
45
45
45
45
50
60
65
75
20
20
20
20
20
9.4
11.4
13.9
17.10
20.3
12-10
11-12
13-12
16-12
18-12
y
y
y
y
y
65
75
80
95
100
1750
2000
2250
2500
2750
3000
2.80
3.00
3.20
3.40
3.50
3.70
x
x
x
x
x
x
2.80
3.00
3.20
3.40
3.50
3.70
50
60
60
60
65
65
80
80
90
90
100
100
20
20
30
30
30
30
23.3
29.80
30.80
35.8
37.4
41.4
12-16
15-16
16-16
18-16
19-16
21-16
y
y
y
y
y
y
110
115
125
130
135
140
Load
“KN”
Footing Size
LxB “m”
D
cm
Do
cm
Reinforcement
Area in each
Direction “cm2”
Reinforcements
on both
Directions
Development
Length
available “cm”
30
30
35
40
20
20
20
20
3.9
4.6
6.5
7.6
5-10 y
6-10 y
9-10 y
10-10y
35
40
50
55
Note : y – denotes Fe500 TMT bars.
fl;Lkhdg; nghwpahsh;
25
mf;Nlhgh; 2013
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