Effective embedment in . ( mm ) |
Nominal embedment in . ( mm ) |
Min . conc . thickness 8 in . ( mm ) |
Tension - ФN n
Shear - ФV n = 3,000 psi = 4,000 psi = 3,000 psi f ́c f ́c f ́c
( 20.7 MPa )
( 27.6 MPa )
( 20.7 MPa ) lb ( kN ) lb ( kN ) lb ( kN )
|
Min . conc . thickness 8 in . ( mm ) |
Tension - ФN n
Shear - ФV n = 3,000 psi = 4,000 psi = 3,000 psi f ́c f ́c f ́c
( 20.7 MPa )
( 27.6 MPa )
( 20.7 MPa ) lb ( kN ) lb ( kN ) lb ( kN )
|
||||
1-1 / 2 |
1-3 / 4 |
2-1 / 2 |
775 |
820 |
1,060 |
2-1 / 4 |
620 |
655 |
730 |
( 38 ) |
( 44 ) |
( 64 ) |
( 3.4 ) |
( 3.6 ) |
( 4.7 ) |
( 57 ) |
( 2.8 ) |
( 2.9 ) |
( 3.2 ) |
1-1 / 2 |
1-7 / 8 |
2-1 / 2 |
1,205 |
1,285 |
880 |
2-1 / 4 |
645 |
685 |
1,540 |
( 38 ) |
( 48 ) |
( 64 ) |
( 5.4 ) |
( 5.7 ) |
( 3.9 ) |
( 57 ) |
( 2.9 ) |
( 3.0 ) |
( 6.9 ) |
2 |
2-1 / 2 |
2-1 / 2 |
1,705 |
1,830 |
1,380 |
2-1 / 4 |
1,615 |
1,730 |
1,630 |
( 51 ) |
( 64 ) |
( 64 ) |
( 7.6 ) |
( 8.1 ) |
( 6.1 ) |
( 57 ) |
( 7.2 ) |
( 7.7 ) |
( 7.3 ) |
2-1 / 2
( 64 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
1,945
( 8.7 )
|
2,155
( 9.6 )
|
1,380
( 6.1 )
|
N / A |
N / A |
N / A |
N / A |
1-1 / 2 |
2 |
2-1 / 2 |
1,205 |
1,390 |
1,165 |
2-1 / 4 |
1,180 |
1,365 |
1,740 |
( 38 ) |
( 51 ) |
( 64 ) |
( 5.4 ) |
( 6.2 ) |
( 5.2 ) |
( 57 ) |
( 5.2 ) |
( 6.1 ) |
( 7.7 ) |
2 |
2-1 / 2 |
2-1 / 2 |
1,790 |
2,015 |
1,470 |
2-1 / 4 |
1,235 |
1,395 |
2,065 |
( 51 ) |
( 64 ) |
( 64 ) |
( 8.0 ) |
( 9.0 ) |
( 6.5 ) |
( 57 ) |
( 5.5 ) |
( 6.2 ) |
( 9.2 ) |
2-1 / 2
( 64 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
2,435
( 10.8 )
|
2,645
( 11.8 )
|
2,135
( 9.5 )
|
N / A |
N / A |
N / A |
N / A |
3-1 / 4 |
3-3 / 4 |
2-1 / 2 |
3,065 |
3,390 |
2,755 |
3-1 / 4 |
1,730 |
1,915 |
2,250 |
( 83 ) |
( 95 ) |
( 64 ) |
( 13.6 ) |
( 15.1 ) |
( 12.3 ) |
( 83 ) |
( 7.7 ) |
( 8.5 ) |
( 10.0 ) |
2-3 / 4 |
3-1 / 4 |
2-1 / 2 |
2,870 |
3,315 |
2,480 |
3-1 / 4 |
1,925 |
2,225 |
2,655 |
( 70 ) |
( 83 ) |
( 64 ) |
( 12.8 ) |
( 14.7 ) |
( 11.0 ) |
( 83 ) |
( 8.6 ) |
( 9.9 ) |
( 11.8 ) |
4
( 102 )
|
4-1 / 2
( 114 )
|
2-1 / 2
( 64 )
|
3,780
( 16.8 )
|
4,365
( 19.4 )
|
3,025
( 13.5 )
|
N / A |
N / A |
N / A |
N / A |
3-1 / 4 |
4 |
2-1 / 2 |
2,470 |
2,730 |
2,655 |
||||
( 83 ) |
( 102 ) |
( 64 ) |
( 11.0 ) |
( 12.1 ) |
( 11.8 ) |
N / A |
N / A |
N / A |
N / A |
3-3 / 4 9
|
4-1 / 2 |
3-1 / 4 |
3,115 |
3,405 |
5,110 |
( 95 ) |
( 114 ) |
( 83 ) |
( 13.9 ) |
( 15.1 ) |
( 22.7 ) |
Effective embedment in . ( mm ) |
Nominal embedment in . ( mm ) |
Min . conc . thickness 8 in . ( mm ) |
Tension - ФN n
Shear - ФV n = 3,000 psi = 4,000 psi = 3,000 psi f ́c f ́c f ́c
( 20.7 MPa )
( 27.6 MPa )
( 20.7 MPa ) lb ( kN ) lb ( kN ) lb ( kN )
|
Min . conc . thickness 8 in . ( mm ) |
Tension - ФN n
Shear - ФV n = 3,000 psi = 4,000 psi = 3,000 psi f ́c f ́c f ́c
( 20.7 MPa )
( 27.6 MPa )
( 20.7 MPa ) lb ( kN ) lb ( kN ) lb ( kN )
|
||||
1-1 / 2 |
1-3 / 4 |
2-1 / 2 |
230 |
260 |
1,060 |
2-1 / 4 |
185 |
205 |
730 |
( 38 ) |
( 44 ) |
( 64 ) |
( 1.0 ) |
( 1.2 ) |
( 4.7 ) |
( 57 ) |
( 0.8 ) |
( 0.9 ) |
( 3.2 ) |
1-1 / 2 |
1-7 / 8 |
2-1 / 2 |
1,055 |
1,220 |
880 |
2-1 / 4 |
565 |
650 |
1,540 |
( 38 ) |
( 48 ) |
( 64 ) |
( 4.7 ) |
( 5.4 ) |
( 3.9 ) |
( 57 ) |
( 2.5 ) |
( 2.9 ) |
( 6.9 ) |
2 |
2-1 / 2 |
2-1 / 2 |
1,490 |
1.705 |
1,380 |
2-1 / 4 |
1,385 |
1,580 |
1,630 |
( 51 ) |
( 64 ) |
( 64 ) |
( 6.6 ) |
( 7.6 ) |
( 6.1 ) |
( 57 ) |
( 6.2 ) |
( 7.0 ) |
( 7.3 ) |
2-1 / 2
( 64 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
1,565
( 7.0 )
|
1.695
( 7.5 )
|
1,380
( 6.1 )
|
N / A |
N / A |
N / A |
N / A |
1-1 / 2 |
2 |
2-1 / 2 |
1,075 |
1.230 |
1,165 |
2-1 / 4 |
960 |
1,100 |
1,740 |
( 38 ) |
( 51 ) |
( 64 ) |
( 4.8 ) |
( 5.5 ) |
( 5.2 ) |
( 57 ) |
( 4.3 ) |
( 4.9 ) |
( 7.7 ) |
2 |
2-1 / 2 |
2-1 / 2 |
1,390 |
1.600 |
1,470 |
2-1 / 4 |
960 |
1,110 |
2,065 |
( 51 ) |
( 64 ) |
( 64 ) |
( 6.2 ) |
( 7.1 ) |
( 6.5 ) |
( 57 ) |
( 4.3 ) |
( 4.9 ) |
( 9.2 ) |
2-1 / 2
( 64 )
|
3
( 76 )
|
2-1 / 2
( 64 )
|
2,130
( 9.5 )
|
2,435
( 10.9 )
|
2,135
( 9.5 )
|
N / A |
N / A |
N / A |
N / A |
3-1 / 4 |
3-3 / 4 |
2-1 / 2 |
2,170 |
2,435 |
2,755 |
3-1 / 4 |
1,230 |
1,380 |
2,250 |
( 83 ) |
( 95 ) |
( 64 ) |
( 9.7 ) |
( 10.8 ) |
( 12.3 ) |
( 83 ) |
( 5.5 ) |
( 6.1 ) |
( 10.0 ) |
2-3 / 4 |
3-1 / 4 |
2-1 / 2 |
2,555 |
2,950 |
2,480 |
3-1 / 4 |
1,715 |
1,980 |
2,655 |
( 70 ) |
( 83 ) |
( 64 ) |
( 11.4 ) |
( 13.1 ) |
( 11.0 ) |
( 83 ) |
( 7.6 ) |
( 8.8 ) |
( 11.8 ) |
4
( 102 )
|
4-1 / 2
( 114 )
|
2-1 / 2
( 64 )
|
2,855
( 12.7 )
|
3,300
( 14.7 )
|
3,025
( 13.5 )
|
N / A |
N / A |
N / A |
N / A |
3-1 / 4 |
4 |
2-1 / 2 |
2,160 |
2,395 |
2,655 |
||||
( 83 ) |
( 102 ) |
( 64 ) |
( 9.6 ) |
( 10.7 ) |
( 11.8 ) |
N / A |
N / A |
N / A |
N / A |
3-3 / 4 |
4-1 / 2 |
3-1 / 4 |
2,425 |
2,735 |
5,110 |
( 95 ) |
( 114 ) |
( 83 ) |
( 10.8 ) |
( 12.2 ) |
( 22.7 ) |