Experimental Study on Torsional Reinforcement of Reinforced Cement Concrete Slab with Various End Conditions
V. Selvan1, R. Sundararajan2
1V. Selvana, Department of Civil Engineering, Sri Ramakrishna Engineering college, Coimbatore, Tamilnadu, India.
2R. Sundararajanb, SCAD College of Technology, Palladam, Tamilnadu, India.
Manuscript received on February 11, 2014. | Revised Manuscript received on February 15, 2014. | Manuscript published on February 25, 2014. | PP:52-55 | Volume-2 Issue-4, February 2014. | Retrieval Number: D0668022414/2014©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Reinforced concrete is the principal material for military engineering and nuclear power plant containment. Reinforced concrete slabs are used in floors, roofs and walls of buildings and as the decks of bridges. The floor system of a structure can take many forms such as in situ solid slab, ribbed slab or pre-cast units. By providing torsion reinforcement, corners are usually prevented from being lifted up. In such cases the corners have to be suitably reinforced at top and also at bottom otherwise cracks are liable to be formed at the corners. The present investigation is intended to study the influence of torsion reinforcement in reinforced concrete slab with end condition all ends discontinuous under uniformly distributed load. Slabs with torsion reinforcement varying from 0% to 30% were casted and tested. Increasing in the torsion reinforcement controls the deflection of the slab element. As the torsion reinforcement increases the corners are being held down. At the maximum of 30% of main reinforcement was provided as torsion reinforcement corners are not held down completely and there is a considerable decrease in central deflection also.
Keywords: Torsion reinforcement, central deflection, Slabs