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Prestress/Post-Tensioning Strand Systems
Stresstek
S31.5
Last edit date: 3/20/2024
GENERAL |
| Bar or Tendon Size |
Strand Diamter |
Ultimate (kips) |
Concrete Strength(psi) |
PJack (kips) |
| 31 |
1/2" |
1280.3 |
N/A |
961 |
WEDGES |
| Wedges Length |
Material |
Wedge Parts |
Wedge Angle |
Wedge Inside Diameter |
|---|
| 1.850" |
AISI 86L20 Rc 59-62 | |
7° 10' |
|
| 1.850" |
AISI C11L17 Rc 59-62 | |
7° 10' |
|
ANCHOR HEADS |
| Anchor Heads Size |
Material |
Authorization Date |
|---|
| 8 7/8" Ø x 3.43" |
AISI C1050, 4140/42 | 5/12/1975 |
Wedge hole angle: 7° Wedge hole diameter: 0.970" Strand hole diameter: 0.570" |
BEARING PLATES |
| Bearing Plates Size |
Material |
Authorization Date |
|---|
| 17 1/2" Square x 2 1/4" |
ASTM A-36 | 5/12/1975 |
| 17 1/2" Square x 2" |
ASTM A-36 42 KSI | 5/12/1975 |
Bearing hole diameter: 7 1/2" Spiral size and turns: none |
TRUMPETS |
| Trumpets Size |
Material |
Authorization Date |
|---|
| 24" |
12 Gage | 5/12/1975 |
DUCTS |
| Ducts Size |
Material |
Authorization Date |
|---|
| 4" O.D. |
| 5/12/1975 |
