Seismic Analysis of Basalt Fiber Reinforced Beam Column Joint under Cyclic Loading

Abstract

Abstract: Beam-column joint assemblage in the RC moment-resisting framed structures is a critical seismic element because its behaviour under severe earthquake motions has a significant effect on failure mode , strength and deformation of the building structures. Basalt Fiber Reinforced Concrete (BFRC) is a concrete with short , discrete lengths of basalt fiber that randomly dispersed. Structures under seismic zone five are often badly damaged or can collapse during earthquakes. The observations from recent earthquakes show that many RC structures have failed in the brittle behaviour of beam-column connections due to the deficiency of seismic details in the joint regions. In this study, RC beam column specimen are modelled in the Ansys with excitation of cyclic loading. Attempts are made to study the performance of the test specimen by studying loop hysteresis, stiffness behaviour and energy dissipation. From the results it has shown that basalt fiber reinforced beam column joint produces less deformation and it act as crack arresters also it produces increase in joint core stiffness compared to conventional concrete beam column joint