Category Archives: Design Issues

Post-Tensioning Institute – Sustainability Case Study

Posted on April 5, 2010 by Neel Khosa

The following case study was created and distributed by the members of Post-Tensioning Institute.  It details the advantages of using Post-Tensioned concrete reinforcement for buildings. The highlights include: Heights savings with Post-Tensioned Concrete in lieu of Structural Steel. Cost comparison between Post-Tensioning and … Continue reading →

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Barrier Cable Systems

Posted on March 23, 2010 by Neel Khosa

Barrier Strand (or Barrier Cable) is primarily used in parking structures for vehicular and/or pedestrian restraint along the ramps or perimeter.  This restraint system is different from the ‘Cable Barrier’ used along highways. Barrier Cable is comprised of a 0.5 inch … 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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