25M Rebar uncracked concrete |
Spacing factor in tension
ƒ AN
|
Edge distance factor in tension
ƒ RN
|
Spacing factor in shear 4
ƒ AV
|
┴ Toward edge
ƒ RV
Edge distance in shear
⃦ To and away from edge
ƒ RV
|
Concrete thickness factor in shear 5
ƒ HV
|
Embedment h ef
|
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
|||||||
in . |
( mm ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
1-3 / 4 |
( 44 ) |
n / a |
n / a |
n / a |
0.24 |
0.12 |
0.10 |
n / a |
n / a |
n / a |
0.02 |
0.01 |
0.01 |
0.04 |
0.02 |
0.02 |
n / a |
n / a |
n / a |
5 |
( 127 ) |
0.59 |
0.55 |
0.54 |
0.32 |
0.16 |
0.13 |
0.54 |
0.52 |
0.52 |
0.11 |
0.05 |
0.04 |
0.22 |
0.09 |
0.07 |
n / a |
n / a |
n / a |
6 |
( 152 ) |
0.61 |
0.56 |
0.55 |
0.34 |
0.18 |
0.14 |
0.55 |
0.53 |
0.52 |
0.14 |
0.06 |
0.05 |
0.28 |
0.12 |
0.10 |
n / a |
n / a |
n / a |
7 |
( 178 ) |
0.63 |
0.57 |
0.56 |
0.37 |
0.19 |
0.15 |
0.55 |
0.53 |
0.53 |
0.18 |
0.08 |
0.06 |
0.36 |
0.15 |
0.12 |
n / a |
n / a |
n / a |
8 |
( 203 ) |
0.65 |
0.58 |
0.57 |
0.40 |
0.21 |
0.16 |
0.56 |
0.53 |
0.53 |
0.22 |
0.09 |
0.07 |
0.40 |
0.19 |
0.15 |
n / a |
n / a |
n / a |
9 |
( 229 ) |
0.67 |
0.59 |
0.58 |
0.43 |
0.22 |
0.18 |
0.57 |
0.54 |
0.53 |
0.26 |
0.11 |
0.09 |
0.43 |
0.22 |
0.18 |
n / a |
n / a |
n / a |
10 |
( 254 ) |
0.68 |
0.60 |
0.58 |
0.46 |
0.24 |
0.19 |
0.58 |
0.54 |
0.54 |
0.30 |
0.13 |
0.10 |
0.46 |
0.24 |
0.19 |
n / a |
n / a |
n / a |
11-9 / 16 |
( 294 ) |
0.71 |
0.62 |
0.60 |
0.51 |
0.26 |
0.21 |
0.59 |
0.55 |
0.54 |
0.38 |
0.16 |
0.13 |
0.51 |
0.26 |
0.21 |
0.59 |
n / a |
n / a |
12 |
( 305 ) |
0.72 |
0.63 |
0.60 |
0.52 |
0.27 |
0.21 |
0.59 |
0.55 |
0.54 |
0.40 |
0.17 |
0.14 |
0.52 |
0.27 |
0.21 |
0.60 |
n / a |
n / a |
14 |
( 356 ) |
0.76 |
0.65 |
0.62 |
0.59 |
0.31 |
0.24 |
0.61 |
0.56 |
0.55 |
0.50 |
0.22 |
0.17 |
0.59 |
0.31 |
0.24 |
0.65 |
n / a |
n / a |
16 |
( 406 ) |
0.79 |
0.67 |
0.63 |
0.68 |
0.35 |
0.28 |
0.62 |
0.57 |
0.56 |
0.62 |
0.26 |
0.21 |
0.68 |
0.35 |
0.28 |
0.69 |
n / a |
n / a |
18 |
( 457 ) |
0.83 |
0.69 |
0.65 |
0.76 |
0.39 |
0.31 |
0.64 |
0.58 |
0.57 |
0.74 |
0.31 |
0.25 |
0.76 |
0.39 |
0.31 |
0.74 |
n / a |
n / a |
18-7 / 16 |
( 469 ) |
0.84 |
0.69 |
0.66 |
0.78 |
0.40 |
0.32 |
0.64 |
0.58 |
0.57 |
0.76 |
0.33 |
0.26 |
0.78 |
0.40 |
0.32 |
0.75 |
0.56 |
n / a |
20 |
( 508 ) |
0.87 |
0.71 |
0.67 |
0.85 |
0.44 |
0.35 |
0.65 |
0.59 |
0.57 |
0.86 |
0.37 |
0.30 |
0.85 |
0.44 |
0.35 |
0.78 |
0.59 |
n / a |
22-3 / 8 |
( 568 ) |
0.91 |
0.73 |
0.69 |
0.95 |
0.49 |
0.39 |
0.67 |
0.60 |
0.58 |
1.00 |
0.44 |
0.35 |
0.95 |
0.49 |
0.39 |
0.82 |
0.62 |
0.58 |
24 |
( 610 ) |
0.94 |
0.75 |
0.70 |
1.00 |
0.52 |
0.42 |
0.68 |
0.60 |
0.59 |
0.48 |
0.39 |
1.00 |
0.52 |
0.42 |
0.85 |
0.64 |
0.60 |
|
26 |
( 660 ) |
0.98 |
0.77 |
0.72 |
0.57 |
0.45 |
0.70 |
0.61 |
0.60 |
0.55 |
0.44 |
0.57 |
0.45 |
0.89 |
0.67 |
0.62 |
|||
28 |
( 711 ) |
1.00 |
0.79 |
0.74 |
0.61 |
0.49 |
0.71 |
0.62 |
0.60 |
0.61 |
0.49 |
0.61 |
0.49 |
0.92 |
0.69 |
0.64 |
|||
30 |
( 762 ) |
0.81 |
0.75 |
0.66 |
0.52 |
0.73 |
0.63 |
0.61 |
0.68 |
0.54 |
0.66 |
0.52 |
0.95 |
0.72 |
0.67 |
||||
36 |
( 914 ) |
0.88 |
0.80 |
0.79 |
0.63 |
0.77 |
0.65 |
0.63 |
0.89 |
0.71 |
0.79 |
0.63 |
1.00 |
0.79 |
0.73 |
||||
> 48 |
( 1219 ) |
1.00 |
0.90 |
1.00 |
0.84 |
0.86 |
0.71 |
0.68 |
1.00 |
1.00 |
1.00 |
0.84 |
0.91 |
0.84 |
25M Rebar cracked concrete |
Spacing factor in tension
ƒ AN
|
Edge distance factor in tension
ƒ RN
|
Spacing factor in shear 4
ƒ AV
|
┴ Toward edge
ƒ RV
Edge distance in shear
⃦ To and away from edge
ƒ RV
|
Concrete thickness factor in shear 5
ƒ HV
|
Embedment h ef
|
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
9-1 / 16 |
15-15 / 16 19-13 / 16 |
|||||||
in . |
( mm ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
( 230 ) |
( 405 ) |
( 504 ) |
1-3 / 4 |
( 44 ) |
n / a |
n / a |
n / a |
0.42 |
0.39 |
0.38 |
n / a |
n / a |
n / a |
0.02 |
0.01 |
0.01 |
0.05 |
0.02 |
0.01 |
n / a |
n / a |
n / a |
5 |
( 127 ) |
0.59 |
0.55 |
0.54 |
0.55 |
0.46 |
0.44 |
0.54 |
0.52 |
0.52 |
0.11 |
0.05 |
0.03 |
0.22 |
0.09 |
0.07 |
n / a |
n / a |
n / a |
6 |
( 152 ) |
0.61 |
0.56 |
0.55 |
0.60 |
0.48 |
0.46 |
0.55 |
0.53 |
0.52 |
0.14 |
0.06 |
0.04 |
0.29 |
0.12 |
0.09 |
n / a |
n / a |
n / a |
7 |
( 178 ) |
0.63 |
0.57 |
0.56 |
0.65 |
0.51 |
0.48 |
0.55 |
0.53 |
0.52 |
0.18 |
0.08 |
0.06 |
0.36 |
0.16 |
0.11 |
n / a |
n / a |
n / a |
8 |
( 203 ) |
0.65 |
0.58 |
0.57 |
0.70 |
0.53 |
0.50 |
0.56 |
0.53 |
0.53 |
0.22 |
0.10 |
0.07 |
0.44 |
0.19 |
0.14 |
n / a |
n / a |
n / a |
9 |
( 229 ) |
0.67 |
0.59 |
0.58 |
0.75 |
0.56 |
0.51 |
0.57 |
0.54 |
0.53 |
0.27 |
0.11 |
0.08 |
0.53 |
0.23 |
0.16 |
n / a |
n / a |
n / a |
10 |
( 254 ) |
0.68 |
0.60 |
0.58 |
0.80 |
0.59 |
0.53 |
0.58 |
0.54 |
0.53 |
0.31 |
0.13 |
0.10 |
0.62 |
0.27 |
0.19 |
n / a |
n / a |
n / a |
11-9 / 16 |
( 294 ) |
0.71 |
0.62 |
0.60 |
0.89 |
0.63 |
0.57 |
0.59 |
0.55 |
0.54 |
0.39 |
0.17 |
0.12 |
0.77 |
0.33 |
0.24 |
0.60 |
n / a |
n / a |
12 |
( 305 ) |
0.72 |
0.63 |
0.60 |
0.91 |
0.64 |
0.58 |
0.59 |
0.55 |
0.54 |
0.41 |
0.17 |
0.13 |
0.82 |
0.35 |
0.25 |
0.61 |
n / a |
n / a |
14 |
( 356 ) |
0.76 |
0.65 |
0.62 |
1.00 |
0.69 |
0.62 |
0.61 |
0.56 |
0.55 |
0.51 |
0.22 |
0.16 |
1.00 |
0.44 |
0.32 |
0.65 |
n / a |
n / a |
16 |
( 406 ) |
0.79 |
0.67 |
0.63 |
0.75 |
0.66 |
0.62 |
0.57 |
0.56 |
0.63 |
0.27 |
0.19 |
0.54 |
0.39 |
0.70 |
n / a |
n / a |
||
18 |
( 457 ) |
0.83 |
0.69 |
0.65 |
0.81 |
0.71 |
0.64 |
0.58 |
0.56 |
0.75 |
0.32 |
0.23 |
0.64 |
0.46 |
0.74 |
n / a |
n / a |
||
18-7 / 16 |
( 469 ) |
0.84 |
0.69 |
0.66 |
0.83 |
0.72 |
0.64 |
0.58 |
0.56 |
0.78 |
0.33 |
0.24 |
0.67 |
0.48 |
0.75 |
0.57 |
n / a |
||
20 |
( 508 ) |
0.87 |
0.71 |
0.67 |
0.87 |
0.75 |
0.65 |
0.59 |
0.57 |
0.88 |
0.38 |
0.27 |
0.75 |
0.54 |
0.78 |
0.59 |
n / a |
||
22-3 / 8 |
( 568 ) |
0.91 |
0.73 |
0.69 |
0.95 |
0.81 |
0.67 |
0.60 |
0.58 |
1.00 |
0.44 |
0.32 |
0.89 |
0.64 |
0.83 |
0.62 |
0.56 |
||
24 |
( 610 ) |
0.94 |
0.75 |
0.70 |
1.00 |
0.85 |
0.68 |
0.60 |
0.58 |
0.49 |
0.36 |
0.99 |
0.71 |
0.86 |
0.65 |
0.58 |
|||
26 |
( 660 ) |
0.98 |
0.77 |
0.72 |
0.90 |
0.70 |
0.61 |
0.59 |
0.56 |
0.40 |
1.00 |
0.80 |
0.89 |
0.67 |
0.60 |
||||
28 |
( 711 ) |
1.00 |
0.79 |
0.74 |
0.95 |
0.71 |
0.62 |
0.60 |
0.62 |
0.45 |
0.90 |
0.93 |
0.70 |
0.63 |
|||||
30 |
( 762 ) |
0.81 |
0.75 |
1.00 |
0.73 |
0.63 |
0.60 |
0.69 |
0.50 |
1.00 |
0.96 |
0.72 |
0.65 |
||||||
36 |
( 914 ) |
0.88 |
0.80 |
0.78 |
0.66 |
0.63 |
0.91 |
0.65 |
1.00 |
0.79 |
0.71 |
||||||||
> 48 |
( 1219 ) |
1.00 |
0.90 |
0.87 |
0.71 |
0.67 |
1.00 |
1.00 |
0.91 |
0.82 |