Prestress/Post-Tensioning Strand Systems

VSL

EC5-12

Last edit date: 3/20/2024

GENERAL

Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
12 1/2" 495.6 N/A 372

WEDGES

Wedges Length Material Wedge Parts Wedge Angle Wedge Inside Diameter
1.570" AISI 86L20 Rc 59-62

ANCHOR HEADS

Anchor Heads Size Material Authorization Date
6" Ø x 2.4" ASTM A536,Gr 80-55-066/22/1981
6" Ø x 2.562" ASTM A536,Gr 80-55-066/3/1988
Wedge hole angle:
Wedge hole diameter: 1.035"
Strand hole diameter: 0.57"

BEARING PLATES

Bearing Plates Size Material Authorization Date
8.86" Square x 7.086" ASTM A536,Gr 80-55-0612/18/1980
Bearing hole diameter: 4.33"
Spiral size and turns: #4-6 turns

TRUMPETS

Trumpets Size Material Authorization Date
Integral ASTM A536,Gr 80-55-06

DUCTS

Ducts Size Material Authorization Date
3 1/8" O.D. 22 Gage

SPIRAL

#4 @ 21/5" x 11" 0.D. dia - total 6 turns