Material Properties of Post-Tension Strands

By admin, on January 29th, 2010%

The following is a list of basic formulas for 270 ksi, 7-wire Prestressing steel strand (per ASTM-A416) used in Post-Tensioned concrete. . . . → Read More: Material Properties of Post-Tension Strands

Leave a comment   Design Issues, Post Tension   , , , , , , ,  

VIDEO: Field Friction Test for Post Tension Tendons

By admin, on October 7th, 2009%

This educational video from AMSYSCO, Inc. shows the process for determining the Friction Coefficients.

Post Tensioning Institute (definitions):

Friction Loss:  the loss of stress (force) in a prestressing tendon resulting from friction created between the strand and sheathing during stressing.
Wobble:  the friction caused by the unintended horizontal deviation of the tendon.
Angular Curvature:  the friction caused by the . . . → Read More: VIDEO: Field Friction Test for Post Tension Tendons

2 comments   Post Tension, Video   , , , , ,  
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