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
1.47" AISI 12L142
1.609" AISI 12L143
1.47" AISI C11L172
1.609" AISI C11L173

ANCHOR HEADS

Anchor Heads Size Material Authorization Date
8.875" Ø x 3.750" AISI C1045 Or 4140/4212/31/1996
Wedge hole angle:
Wedge hole diameter: 0.96"-1.02"
Strand hole diameter: 0.625"

BEARING PLATES

Bearing Plates Size Material Authorization Date
17.7" Square x 2.50" ASTM-A36 Gr4212/31/1996
Bearing hole diameter: 7.4"
Spiral size and turns: none

TRUMPETS

Trumpets Size Material Authorization Date
There are no trumpet components for this system at this time

DUCTS

Ducts Size Material Authorization Date
There are no duct components for this system at this time

SPIRAL

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