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Title: Designing for Construction Productivity and Safety

Author(s): Gordon H. Reigstad, Jason G. Reigstad, and Jared M. Reigstad

Publication: Concrete International

Volume: 43

Issue: 6

Appears on pages(s): 51-55

Keywords: design, formwork, shoring, pour strip

Date: 6/1/2021

Volume change is a challenging aspect of reinforced concrete and post-tensioned construction. If no measures are taken to minimize restraint to shortening from columns, braced frames, moment frames, and shear walls, strains resulting from concrete shrinkage, creep, temperature, and elastic shortening associated with post-tensioning can result in high tensile stresses and significant cracking. In an elevated slab, the common solution is to use a pour strip. An innovative pour strip design based on the use of mechanical couplers is discussed.


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