Civil Engineering Reference
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Table 6-4 Shear Strength
φ
V
s
Provided by Horizontal Shear Reinforcement*
I
V
s
(kips/ft length of wall)
Bars Spacing
S
2
(in.)
#3
#4
#5
#6
6
7.9
14.4
22.3
31.7
7
6.8
12.3
19.1
27.2
8
5.9
10.8
16.7
23.8
9
5.3
9.6
14.9
21.1
10
4.8
8.6
13.4
19.0
11
4.3
7.9
12.2
17.3
12
4.0
7.2
11.2
15.8
13
3.7
6.6
10.3
14.6
14
3.4
6.2
9.6
13.6
15
3.2
5.8
8.9
12.7
16
3.0
5.4
8.4
11.9
17
2.8
5.1
7.9
11.2
18
2.6
4.8
7.4
10.6
*
Values of
I
V
s
are for walls with a single layer of reinforcement.
Tabulated values should be doubled for walls with two layers
Tabulated values can be doubled for walls with two layers
s
1
ρ
s
2
ρ
h
w
˜
w
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