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Prestress/Post-Tensioning Strand Systems
DYWIDAG-Systems International
20-0.5 MA
Last edit date: 3/20/2024
GENERAL |
| Bar or Tendon Size |
Strand Diamter |
Ultimate (kips) |
Concrete Strength(psi) |
PJack (kips) |
| 20 |
1/2" |
826 |
N/A |
620 |
WEDGES |
| Wedges Length |
Material |
Wedge Parts |
Wedge Angle |
Wedge Inside Diameter |
|---|
| 1.575" |
AISI 12L14 | 3 |
7° 30' ± 10' |
|
| 1.575" |
AISI 11L17 | 3 |
7° 30' ± 10' |
|
ANCHOR HEADS |
| Anchor Heads Size |
Material |
Authorization Date |
|---|
| 7.087" Ø x 2.756" |
ASTM-A521-76 (Forged ) | 9/3/1997 |
Wedge hole angle: 7° Wedge hole diameter: 0.984" Strand hole diameter: 0.551" |
BEARING PLATES |
| Bearing Plates Size |
Material |
Authorization Date |
|---|
| 9.843" Ø x 7.874" (MPA) |
ASTM-A536 Gr 65-45-12 | 9/17/1991 |
Bearing hole diameter: 5.827" Spiral size and turns: none |
TRUMPETS |
| Trumpets Size |
Material |
Authorization Date |
|---|
| 15.719" |
ASTM A4976 - H.D.P.E | |
DUCTS |
| Ducts Size |
Material |
Authorization Date |
|---|
| 3.720" O.D. |
| |
