Long-Term Deflections for Normal and High Strength Reinforced Concrete Beams | ||
| Journal of University of Babylon | ||
| Article 1, Volume 20, Issue 1, April 2012, Pages 46-61 | ||
| Author | ||
| Muthana H. Muhaisin | ||
| Abstract | ||
| The study aims to present new form to calculate the long-term deflections (time dependent) for reinforced concrete beams (normal & high strength).The presented form taking into account the effect of several factors such compressive strength of concrete, the reinforcement at compressive zone, cross section dimensions, and span length. The results of the presented form were compared with experimental results of other researchers, and a good agreement was obtained. Among the conclusions drawn, the long-term deflections are highly reduced by increasing the compressive strength of concrete (the long term deflection reduced about 50% for compressive strength increased from 20 to 100 MPa). Additionally, the reinforcement at compressive zone is less benefit in decrease the long-term deflection when use the high strength concrete. | ||
| Keywords | ||
| Creep; shrinkage; reinforced concrete; long term; deflection | ||
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