Effect the Depth of Shearhead on the Behavior of Reinforced Concrete Flat Plate Slabs
Abstract
This research presents an experimental study of effect the depth of shearhead on the behavior of reinforced concrete flat plate slabs. Three reinforced concrete slab specimens were casted and tested under static load. The effect of different section depth of shearhead has been discovered through studying its impact on the load-deflection behavior, ultimate capacity, cracking load, failure mode, stiffness, ductility and energy absorption of tested specimens. The result appeared that the specimen with large section height of collar shearhead gives an increase in ultimate capacity and first crack about 83.5% and 34.6% respectively over reference specimen So (without shearhead).Also, the reduction in stiffness at failure of specimen CS8 is 82.7% ,its clear more than that of specimen CS7, in comparison with it's stiffness at 25% . The increasing in energy absorption was about (127.7%) of specimen with large section height in comparison with reference specimen. It is concluded that the loading capacity, stiffness, ductility and energy absorption increased with increasing section depth of shearhead .
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ISSN (Paper)2224-5790 ISSN (Online)2225-0514
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