Prestress/Post-Tensioning Strand Systems

Schwager Davis Incorporated

SDI 19.6-PC

Last edit date: 3/20/2024

GENERAL

Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
19 0.6" 1113 3500 835

WEDGES

Wedges Length Material Wedge Parts Wedge Angle Wedge Inside Diameter
1.80" x 1.12" 2 0.62"

ANCHOR HEADS

Anchor Heads Size Material Authorization Date
SDI 8.125" x 3.75" w/step A536 GR. 80-55-068/13/2007
Wedge hole angle: 6° 55'
Wedge hole diameter: 1.16"
Strand hole diameter:

BEARING PLATES

Bearing Plates Size Material Authorization Date
13" x 3" RD A536 GR. 80-55-067/14/2005
Bearing hole diameter:
Spiral size and turns: #5-7 turns

TRUMPETS

Trumpets Size Material Authorization Date
19.94" x 6.5" HDPE

DUCTS

Ducts Size Material Authorization Date
4.25" O.D. galvanized spiro

SPIRAL

#5 spiral 17" od 7-turns @ 3" pitch