Structural Concrete - Hassoun

Appendix A Design Tables (U.S. Customary Units) 1003
Table A.15
Common Styles of Welded Wire Fabric
Steel Area (in. 2 ft)
Weight
Approx.
Style Designation Longitudinal Transverse lb/100 ft 2
6 × 6—W1.4 × W1.4 0.03 0.03 21
6 × 6—W2 × W2 0.04 0.04 29
6 × 6—W2.9 × W2.9 0.06 0.06 42
6 × 6—W4× W4 0.08 0.08 58
6 × 6—W5.5 × W5.5 0.11 0.11 80
4 × 4—W1.4 × W1.4 0.04 0.04 31
4 × 4—W2 × W2 0.06 0.06 43
4 × 4—W2.9 × W2.9 0.09 0.09 62
4 × 4—W4 × W4 0.12 0.12 86
Table A.16
Size and Pitch of Spirals
f y
(ksi)
Diameter of
Column (in.)
Outside to
f ′ (psi) c
Outside of
Spiral (in.) 3000 4000 5000
40 14, 15 11, 12
16 13
17–19 14–16
20–23 17–20
24–30 21–27
60 14, 15 11, 12
16–23 13–20
24–29 21–26
30 27
3
1
− 1 3 − 2 1 − 1 3
8 4
2 2
2 4
3
− 1 3 1
− 2 1 1
− 2
8 4
2 2
2
3
− 1 3 1
− 2 1 1
− 2
8 4
2 2
2
3
− 1 3 1
− 2 1 1
− 2
8 4
2 2
2
3
− 2 1
− 2 1 1
− 2
8 2 2
2
3
− 2 3 3
− 2 1
− 2 3
8 4
8 2 4
3
− 2 3 3
− 2 1
− 2 3
8 4
8 2 4
3
− 3 3
− 2 1 1
− 3
8 8 4
2
3
− 3 3
− 2 1 1
− 3 1
8 8 4
2 4
1