Tag Archives: tendon

Diagram of Post Tensioning Slab

Posted on September 14, 2010 by Neel Khosa

Your typical Unbonded Post-Tensioned concrete slab will require the following items: Post-Tensioning Tendon Anchorage Devices (at stressing, intermediate, fixed ends) Reusable Pocket Formers (at stressing ends) Split Pocket Formers (at intermediate ends) Wedges (at stressing, intermediate, fixed ends) Stressing Equipment … Continue reading →

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Material Properties of Post-Tension Strands

Posted on January 29, 2010 by Neel Khosa

The following is a list of basic formulas for 270 ksi, 7-wire Prestressing steel strand (per ASTM-A416) used in Post-Tensioned concrete. _______________________________ Assume 0.5″ diameter strand has cross-sectional area of 0.153 sq.in. and weight of 0.525 lbs/ft. Assume 0.6″ diameter strand … Continue reading →

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VIDEO: Field Friction Test for Post Tension Tendons

Posted on October 7, 2009 by Neel Khosa

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. … Continue reading →

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