2010 Construction and Material Specifications - Ohio Department of ...

Illustrative Example of S-Stirrup Support System for 0.3 mm Crack D
2550 mm diameter Pipe Minimum Area per Support 34 mm 2 Stirrup Support System for 0.3 mm Crack D-Load 140.0,
, 11 Lines Spaced @ 128 mm.
For other classes and sizes, see Tables 706.02-2M, 2M, 3M, and 4M.
0.01-inch Crack D-Load 1000
Ultimate Strength D-Load 1500
Internal
Diameter of
Pipe
Wall
Thickness
(in)
TABLE 706.02-1
Circular Reinforcement in Circular Pipe
Inner Cage
(in)
(in 2 Outer Cage
/ft of pipe) (in 2 /ft of pipe)
Reinforcing Steel 709.11 or 709.12 Only
Concrete Strength 4000 psi
36 4 0.09 0.07
42 4 1/2 0.11 0.08
48 5 0.13 0.09
54 5 1/2 0.16 0.12
60 6 0.19 0.14
66 6 1/2 0.21 0.16
72 7 0.23 0.17
78 7 1/2 0.25 0.19
84 8 0.29 0.21
90 8 0.33 0.24
96 8 1/2 0.37 0.26
Concrete Strength 5000 psi
102 8 1/2 0.41 0.28
108 9 0.47 0.3
All Permitted Reinforcing Steel
Concrete Strength 5000 psi
114 9 1/2 0.56 0.42
120 10 0.61 0.46
126 10 1/2 0.65 0.49
132 11 0.7 0.52
144 12 0.8 0.6
703
706.02