In order to increase the ductility of RC piers, some kinds of jacketing method are applied by using steel plate, concrete and FRP sheets. However, these methods demand a wide open space to work easily with high quality.
In this paper, in order to rationally perform the retrofit for RC piers located tight area, a new jacketing method with partially precasted AFRP sheets is proposed. The RC piers locating at one open space and other three sides closed, can be easily and rationally retrofitted by applying this method. An applicability of this method is experimentally discussed.
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