Table 15 — Load Adjustment Factors for 20 M Canadian Rebar in Uncracked Concrete
20 M
Spacing Factor in
Uncracked
Tension
Concrete
f
AN
Embedment h
200
355
ef
mm
45
n/a
n/a
100
0.58
0.55
125
0.60
0.56
150
0.63
0.57
175
0.65
0.58
200
0.67
0.59
225
0.69
0.61
250
0.71
0.62
275
0.73
0.63
300
0.75
0.64
325
0.77
0.65
350
0.79
0.66
375
0.81
0.68
400
0.83
0.69
450
0.88
0.71
500
0.92
0.73
550
0.96
0.76
600
1.00
0.78
650
0.81
700
0.83
800
0.88
1000
0.97
1200
1.00
>1500
Table 16 — Load Adjustment Factors for 25 M Canadian Rebar in Uncracked Concrete
25 M
Spacing Factor in
Uncracked
Tension
Concrete
f
AN
Embedment h
230
405
ef
mm
45
n/a
n/a
125
0.59
0.55
150
0.61
0.56
175
0.63
0.57
200
0.64
0.58
225
0.66
0.59
250
0.68
0.60
275
0.70
0.61
300
0.72
0.62
325
0.74
0.63
350
0.75
0.64
375
0.77
0.65
400
0.79
0.66
450
0.83
0.69
500
0.86
0.71
550
0.90
0.73
600
0.93
0.75
650
0.97
0.77
700
1.00
0.79
750
0.81
800
0.83
1000
0.91
1200
0.99
>1500
1.00
1 Linear interpolation not permitted
2 Shaded area with reduced edge distance is permitted provided rebar has no installation torque.
3 Spacing factor reduction in shear, f
, assumes an influence of a nearby edge. If no edge exists, then f
AV
4 Concrete thickness reduction factor in shear, f
18
Hilti, Inc. (USA) 1-800-879-8000 I www.us.hilti.com I en español 1-800-879-5000 I Hilti (Canada) Corp. 1-800-363-4458 I www.hilti.ca I HIT-HY 100 Technical Supplement 01/14
Edge Distance Factor
Spacing Factor in
in Tension
f
RN
390
200
355
390
200
n/a
0.21
0.11
0.10
n/a
0.54
0.28
0.15
0.14
0.54
0.55
0.32
0.17
0.16
0.55
0.56
0.36
0.19
0.18
0.56
0.57
0.39
0.21
0.19
0.57
0.59
0.44
0.24
0.22
0.58
0.60
0.49
0.26
0.24
0.59
0.61
0.54
0.29
0.27
0.60
0.62
0.59
0.32
0.29
0.61
0.63
0.65
0.35
0.32
0.62
0.64
0.70
0.38
0.35
0.63
0.65
0.75
0.41
0.37
0.64
0.66
0.81
0.44
0.40
0.65
0.67
0.86
0.47
0.43
0.66
0.69
0.97
0.53
0.48
0.68
0.71
1.00
0.59
0.53
0.70
0.74
0.65
0.59
0.72
0.76
0.70
0.64
0.74
0.78
0.76
0.69
0.76
0.80
0.82
0.74
0.78
0.84
0.94
0.85
0.81
0.93
1.00
1.00
0.89
1.00
0.97
1.00
Edge Distance Factor
Spacing Factor in
in Tension
f
RN
504
230
405
504
230
n/a
0.22
0.12
0.10
n/a
0.54
0.31
0.17
0.14
0.54
0.55
0.35
0.19
0.15
0.55
0.56
0.38
0.21
0.16
0.55
0.57
0.41
0.22
0.18
0.56
0.57
0.45
0.24
0.19
0.57
0.58
0.48
0.26
0.21
0.58
0.59
0.52
0.28
0.23
0.58
0.60
0.57
0.31
0.25
0.59
0.61
0.61
0.34
0.27
0.60
0.62
0.66
0.36
0.29
0.61
0.62
0.71
0.39
0.31
0.61
0.63
0.76
0.41
0.33
0.62
0.65
0.85
0.46
0.37
0.64
0.67
0.94
0.52
0.41
0.65
0.68
1.00
0.57
0.45
0.67
0.70
0.62
0.49
0.68
0.71
0.67
0.53
0.70
0.73
0.72
0.58
0.71
0.75
0.77
0.62
0.73
0.76
0.83
0.66
0.74
0.83
1.00
0.82
0.80
0.90
0.99
0.86
1.00
1.00
0.95
, assumes an influence of a nearby edge. If no edge exists, then f