Prestress/Post-Tensioning Strand Systems

Stresstek

S13.5

Last edit date: 3/20/2024

GENERAL

Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
13 1/2" 536.9 N/A 403

WEDGES

Wedges Length Material Wedge Parts Wedge Angle Wedge Inside Diameter
1.850" AISI 86L20 Rc 59-62 7° 10'
1.850" AISI C11L17 Rc 59-62 7° 10'

ANCHOR HEADS

Anchor Heads Size Material Authorization Date
6" Ø x 2.61" AISI C1050, 4140/4211/2/1970
Wedge hole angle:
Wedge hole diameter: 0.970"
Strand hole diameter: 0.570"

BEARING PLATES

Bearing Plates Size Material Authorization Date
11 1/2" Square x 1 1/2" ASTM A-3611/2/1970
11 1/4" Square x 1 1/4" ASTM A-36 42 KSI (Min yield )6/12/1974
Bearing hole diameter: 4.42"
Spiral size and turns: none

TRUMPETS

Trumpets Size Material Authorization Date
16" 14 Gage
16" 16 Gage11/2/1970

DUCTS

Ducts Size Material Authorization Date
2 5/8" O.D. 11/2/1970

SPIRAL

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