Figure 6 |
Anchors not permitted in shaded area
C min , 1
C min , 2
Case 2
Case 1
|
For a specific edge distance , the permitted spacing is calculated as follows :
( s min , 1 – s min , 2
) s ≥ s min , 2
+ ____________ ( c – c min , 2 )
( c min , 1 – c min , 2
)
|
spacing s
s design
|
c a min at s ≥ |
s min at c ≥ |
3.2.2 |
S min , 2
S min , 1
|
Concrete Edge |
c design
|
edge distance c |
Effective embedment |
h ef
|
( mm ) |
( 60 ) |
( 86 ) |
( 114 ) |
in . |
2-3 / 8 |
3-3 / 8 |
4-1 / 2 |
c min , 1
|
in .
( mm )
|
3-1 / 8
( 79 )
|
2-3 / 4
( 70 )
|
2-1 / 4
( 57 )
|
2-3 / 4
( 70 )
|
2-1 / 4
( 57 )
|
2
( 51 )
|
2-1 / 4
( 57 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
s min , 1
|
in .
( mm )
|
9-1 / 8
( 232 )
|
7-3 / 4
( 197 )
|
6-1 / 8
( 156 )
|
7-3 / 4
( 197 )
|
6-1 / 2
( 165 )
|
5-5 / 8
( 143 )
|
6-1 / 8
( 156 )
|
5-3 / 8
( 137 )
|
4-1 / 2
( 114 )
|
c min , 2
|
in .
( mm )
|
5-5 / 8
( 143 )
|
4-3 / 4
( 121 )
|
3-3 / 4
( 95 )
|
4-3 / 4
( 121 )
|
3-7 / 8
( 98 )
|
3-1 / 4
( 83 )
|
3-3 / 4
( 95 )
|
3-1 / 8
( 79 )
|
2-3 / 4
( 70 )
|
s min , 2
|
in .
( mm )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
c min , 1
|
in .
( mm )
|
2-1 / 8
( 54 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
s min , 1
|
in .
( mm )
|
6-3 / 8
( 162 )
|
5-1 / 2
( 140 )
|
4-1 / 4
( 108 )
|
5-1 / 2
( 140 )
|
3-1 / 2
( 89 )
|
2-5 / 8
( 67 )
|
3-1 / 4
( 83 )
|
2
( 51 )
|
1-7 / 8
( 48 )
|
c min , 2
|
in .
( mm )
|
3-5 / 8
( 92 )
|
3-1 / 8
( 79 )
|
2-3 / 8
( 60 )
|
3-1 / 8
( 79 )
|
2-1 / 2
( 64 )
|
2-1 / 8
( 54 )
|
2-3 / 8
( 60 )
|
2
( 51 )
|
1-7 / 8
( 48 )
|
s min , 2
|
in .
( mm )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
1-7 / 8
( 48 )
|
Effective embedment |
h ef
|
( mm ) |
( 70 ) |
( 114 ) |
( 152 ) |
in . |
2-3 / 4 |
4-1 / 2 |
6 |
c min , 1
|
in .
( mm )
|
5-1 / 8
( 130 )
|
4-1 / 8
( 105 )
|
2-7 / 8
( 73 )
|
3-5 / 8
( 92 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
2-7 / 8
( 73 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
s min , 1
|
in .
( mm )
|
14-7 / 8
( 378 )
|
11-7 / 8
( 302 )
|
8-5 / 8
( 219 )
|
10-1 / 4
( 260 )
|
9
( 229 )
|
7-1 / 4
( 184 )
|
8-1 / 8
( 206 )
|
7-1 / 4
( 184 )
|
5
( 127 )
|
c min , 2
|
in .
( mm )
|
9-1 / 4
( 235 )
|
7-1 / 4
( 184 )
|
4-7 / 8
( 124 )
|
6-1 / 4
( 159 )
|
5-1 / 4
( 133 )
|
4-1 / 8
( 105 )
|
4-3 / 4
( 121 )
|
4-1 / 8
( 105 )
|
3-3 / 8
( 86 )
|
s min , 2
|
in .
( mm )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
c min , 1
|
in .
( mm )
|
3-5 / 8
( 92 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
2-5 / 8
( 67 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
s min , 1
|
in .
( mm )
|
10-7 / 8
( 276 )
|
8-1 / 2
( 216 )
|
6
( 152 )
|
7-3 / 8
( 187 )
|
5-1 / 2
( 140 )
|
3-1 / 8
( 79 )
|
4-1 / 2
( 114 )
|
3-1 / 8
( 79 )
|
2-1 / 2
( 64 )
|
c min , 2
|
in .
( mm )
|
6-1 / 2
( 165 )
|
5
( 127 )
|
3-1 / 4
( 83 )
|
4-1 / 4
( 108 )
|
3-1 / 2
( 89 )
|
2-3 / 4
( 70 )
|
3-1 / 4
( 83 )
|
2-3 / 4
( 70 )
|
2-1 / 2
( 64 )
|
s min , 2
|
in .
( mm )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|
2-1 / 2
( 64 )
|