The objective of the work is to investigate the structural behavior of reinforced concrete flanged deep beams with web openings under repeated loading through experimental tests which were carried out on simply supported T- beams , subject to two point loads. This work deals with the results of experimental work with three test specimens with square opening 25% of web depth at mid high through critical shear path. The effect of steel reinforcement arrangement for web opening is investigated. The experimental tests of sections under repeated loading showed that reinforcement of web opening increased the cracking and ultimate loads. It is observed that reinforcement for opening reduced the deflection and the crack width. The inclined reinforcement results are better than orthogonal.
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