Shaking Table Tests on RC Retrofitted Frame with FRP

This paper describes the experimental work undertaken on FRP seismic strengthening of a RC structure as part of the “Ecoleader” European program. Shaking table tests were performed on a one-bay, 2 storey, full-scale spatial RC-frame (4 m x 4 m, 6.6 m high, 30 t mass) at CEA Saclay on the AZALEE shaking table. Two further papers in this conference will describe the analytical work relating to the tests. The main objective of the program was to assess different strengthening strategies and techniques on a seismically under-designed R/C frame structure, in order to develop simple and rational techniques for use in FRP-strengthening of R/C structural elements (i.e., beams, columns and joints) and quantify their effectiveness through design equations. The original frame was shaken until severe damage was achieved and a sway mechanism was developed. It was subsequently strengthened with Carbon FRP aiming to change the collapse mechanism. The strengthening procedure proved to be amazingly successful and the frame resisted shaking up to the limits possible by the capacity of the shaking table.