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Prestress/Post-Tensioning Strand Systems
VSL
EC5-31
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 |
|---|
| 1.570" |
AISI 86L20 Rc 59-62 | |
7° |
|
ANCHOR HEADS |
| Anchor Heads Size |
Material |
Authorization Date |
|---|
| 9" Ø x 3.95" |
C1050 HR | 2/26/1985 |
| 9" Ø x 4" |
ASTM A536 Gr 80-55-06 | 10/28/1991 |
Wedge hole angle: 7° Wedge hole diameter: 1.035" Strand hole diameter: 0.625" |
BEARING PLATES |
| Bearing Plates Size |
Material |
Authorization Date |
|---|
| 14" Square x 13.385" |
ASTM A 536,Gr 80-55-06 | 2/26/1985 |
Bearing hole diameter: 7.00" Spiral size and turns: #4-8 turns |
TRUMPETS |
| Trumpets Size |
Material |
Authorization Date |
|---|
| Integral |
ASTM A536,Gr 80-55-06 | |
DUCTS |
| Ducts Size |
Material |
Authorization Date |
|---|
| 4 1/4" O.D. |
22 Gage | |
SPIRAL |
| #4 17"OD, 2" pitch, 8 turn , grad 60 for EC 5-31 |
