https://orcid.org/0000-0002-6243-2744
Abstract
The influence of different fiber profiles and fiber hybridization on the cyclic behavior of an exterior beam-column joint is experimentally studied and compared with conventional specimens. In the beam-column joint, the joint region concrete is substituted with fiber-reinforced concrete (FRC)/hybrid fiber-reinforced concrete (HyFRC) and tested under reverse cyclic loading to examine the inelastic response. The physical properties of composites employed are examined using cylindrical specimens under uniaxial compression. The stress–strain behavior shows tremendous difference in peak and post-peak strength and strain with respect to the volume and type of fibers in the composites. The test results of joint specimens validate that the hybridization of polypropylene fiber with metallic fiber offers better shear resistance and also improves the damage tolerance capacity like high-volume FRC specimens without critical joint detailing. The damping and energy dissipation response of FRC/HyFRC specimens clearly show that the need for seismic detailing can be eliminated using FRC/HyFRC.
Issue Section:
Technical Papers
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