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Prestress/Post-Tensioning Strand Systems
DYWIDAG-Systems International
37-0.5
Last edit date: 3/20/2024
GENERAL |
| Bar or Tendon Size |
Strand Diamter |
Ultimate (kips) |
Concrete Strength(psi) |
PJack (kips) |
| 37 |
1/2" |
1548.7 |
N/A |
1146 |
WEDGES |
| Wedges Length |
Material |
Wedge Parts |
Wedge Angle |
Wedge Inside Diameter |
|---|
| 1.575" |
AISI C12L14 | 3 |
7° 30' ± 10' |
|
| 1.575" |
AISI 11L17 | 3 |
7° 30' ± 10' |
|
ANCHOR HEADS |
| Anchor Heads Size |
Material |
Authorization Date |
|---|
| 9.449" Ø x 4.134"(Forged) |
ASTM A521-76 Cl CC | 9/17/1991 |
Wedge hole angle: 7° ± 10' Wedge hole diameter: 1.102" Strand hole diameter: 0.669" |
BEARING PLATES |
| Bearing Plates Size |
Material |
Authorization Date |
|---|
| 12.402" Ø x 9.449" |
ASTM A536 GR65-45-12 | 1/21/1988 |
Bearing hole diameter: 7.490" Spiral size and turns: #6-7 turns |
TRUMPETS |
| Trumpets Size |
Material |
Authorization Date |
|---|
| 26.26" |
ASTM D4976 - 0.138" Thick P.E. (Hard ) | 1/21/1988 |
| 27 7/8" |
ASTM D1248 - Hard Polyethlene | 3/27/1991 |
DUCTS |
| Ducts Size |
Material |
Authorization Date |
|---|
| 4.61" O.D. |
26 Gage Steel | 1/21/1988 |
SPIRAL |
| ASTM A 615 gr 60 # 6 21/4" pitch 17" O.D. 7 full turns |
