CFRP - Confined reinforced concrete elements subjected to cyclic compressive loading

摘要

The effectiveness of discrete and continuous CFRP wrapping arrangements forreinforced concrete (RC) short column subjected to monotonic and cycliccompressive loading is assessed in this work. The experimental program is composedof four series of RC columns with discrete wrapping arrangements and one series offull wrapped RC columns. Each series is composed of a monotonic and a cyclic test.Strain gauges were installed along the height of each column to measure the strainfield in the CFRP during the test. The variation of the stiffness of the unloading andreloading branches of each loading cycle was determined. A constitutive model tosimulate FRP-confined RC concrete elements subjected to cyclic compressiveloading was developed and implemented into a computer program based on the finiteelement method. This model was appraised with the data obtained from the carriedout experimental program.