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Effect of Shrinkage on Short-Term Deflections of Reinforced Concrete Beams and Slabs. Paper by Peter H. Bischoff and Ryan D. Johnson/AUTHORS' CLOSURE
- Article from:
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ACI Structural Journal
- Article date:
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July 1, 2008
- Author:
- Kaklauskas, Gintaris; Gribniak, Viktor; Bacinskas, Darius
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Copyright informationCopyright American Concrete Institute Jul/Aug 2008. Provided by ProQuest LLC. (Hide copyright information)
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Discussion by Gintaris Kaklauskas, Viktor Gribniak, and Darius Bacinskas
Professor, Head of Department, Vilnius Gediminas Technical University (VGTU), Vilnius, Lithuania; Researcher, VGTU; and Associate Professor, VGTU
The authors are to be congratulated for raising an important, but unjustly neglected, issue. In general practice, effects of shrinkage and creep are taken into account in prestress loss and/or long-term deformation analysis. Even at first loading, however, free shrinkage strain of concrete may be of such magnitude that well exceeds the cracking strain. Due to restraining action of reinforcement, shrinkage-induced tension stresses in concrete may significantly reduce crack ...