Finite Element Analysis of M40 PET Fiber Concrete

Abstract

By using PET waste fiber, the failure behavior of the beam-column junction may be minimized or up to some extend it may be avoided. With the variation of composition different seismic performance of the concrete joint could be adjusted. The FEM analysis in ABAQUS software, has been carried out to compare the behavior of conventional concrete and PET waste fiber reinforced concrete beam column joint under cyclic loading. Concrete mix has been designed to obtain a concrete grade of M40. Seven numbers of exterior beam column joints modeled to one fourth of a prototype of a building. The first joint was made with the conventional concrete and designed as per IS 1893 (part 1): 2002 and the reinforcement in the joint portion detailed as per the IS 13920: 2016, for the ductility requirement. The additional six specimen designed with the various inclusion of the PET waste fibers (0.25 % to 1.50 %) at the joint region. The beam-column joint having 0.50 % to 1.00 % inclusion of PET fibers have better performance in the strength, load carrying capacity, energy dissipation capacity, joint shear capacity and ductility behavior at the joint region. PET waste fiber inclusion in the concrete can provide the best solution for the waste management and it also reduce the cost of the reinforced concrete by 15 % to 20 % with better seismic performance.