SHEAR CAPACITY EVALUATION OF REINFORCED CONCRETE BEAMS: FINITE ELEMENT SIMULATION
DOI:
https://doi.org/10.11113/jt.v77.6400Keywords:
Reinforced concrete beam, continuous shear system, single square spring shear resistance system, double square spring shear resistance systemAbstract
The shear performance of reinforced concrete beams with rectangle cross-section and two different continuous rectangular spiral shear reinforcement under monotonous loading is numerically evaluated. Further, the behaviour of two continuous shear reinforcement systems named, “Single Square Spring Shear Resistance System†(SSSSRS) and “Double Square Spring Shear Resistance System†(DSSSRS) as transverse reinforcements are compared with conventional discontinuous system “Stirrupsâ€. The finite element study includes three (3) beams. The results clearly show that the application of continuous shear reinforcement system delivered improved shear behaviour and enhanced bearing capacity in beams. Beams with Single Square Spring Shear Resistance System (SSSSRS) and Double Square Spring Shear Resistance System (DSSSRS) exhibited 14.4% and 19.8% increased shear performance in comparison with conventional control beam. It was concluded that under the same deflection higher forces was achieved for “Single Square Spring Shear Resistance System†(SSSSRS) and “Double Square Spring Shear Resistance System†(DSSSRS) compared to control specimens.
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