Design of Frp Strengthened RC Beam-Column Joints Using Strength Hierarchy Assessment Method

Abstract eng:
In this paper, the Fiber Reinforced Polymer (FRP) beam-column joint strengthening layout adopted by the researchers at the University of Canterbury (UC) has been studied. A simplified analysis and design procedure is proposed that can be used to quantify the provided capacity. The proposed procedure can facilitate the use of this strengthening scheme in real life engineering applications. The procedure is validated using the previous experimental work utilizing the same FRP strengthening scheme. The capacity given by the FRPs is assessed using the hierarchy of strength assessment method. In this method, the expected member failure sequences of as-built and strengthened reinforced concrete (RC) beam-column joints as well as the global base shear demands corresponding to each failure mode can be determined. It has been shown that the proposed design and analysis method for the FRP joint strengthening is in good agreement with the experimental test results with similar FRP strengthening schemes.

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