Seismic Rehabilitation of Beam-Column Joints Using FRP Laminates
An innovative and practical technique for the seismic rehabilitation of beam-column joints using fiber reinforced polymers (FRP) is presented. The procedure is to upgrade the shear capacity of the joint and thus allow the ductile textural hinge to form in the beam. An experimental study is conducted in order to evaluate the performance of a full-scale reinforced concrete external beam-column joint from a moment resisting frame designed to earlier code then repaired using the proposed technique. The beam-column joint is tested under cyclic loading applied at the free end of the beam and axial column load. The suggested repair procedure was applied to the tested specimen. The composite laminate system proved to be effective in upgrading the shear capacity of the non-ductile beam-column joint. Comparison between the behaviour of the specimen before and after the repair is presented. A design methodology for fibre jacketing to upgrade the shear capacity of existing beam-column joints in reinforced concrete moment resisting frames is proposed.
Beam-column joint; Buildings--Repair and reconstruction; Buildings--Earthquake effects; Buildings; Reinforced concrete--Earthquake effects; Concrete; Concrete beams; Earthquake resistant design; Earthquakes; Experimental; FRP; Moment resisting frame; Rehabilitation; Reinforced concrete; Repair; Seismic upgrade; Shear (Mechanics)
Civil and Environmental Engineering | Construction Engineering and Management | Geophysics and Seismology | Structural Engineering
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Seismic Rehabilitation of Beam-Column Joints Using FRP Laminates.
Journal of Earthquake Engineering, 5(1),