Tag Archives: american concrete institute
Material Properties of Post-Tension Strands
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
Posted in Design Issues, Post Tension
Tagged american concrete institute, concrete, elongation, force, Post Tension, Post-Tensioning Institute, stressing, tendon
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VIDEO: Field Friction Test for Post Tension Tendons
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
Posted in Post Tension, Video
Tagged american concrete institute, friction test, Post Tension, tendon, Unbonded, YouTube Video
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