Experimental Study of Short NSM–FRP Bar Anchorages


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Title: Experimental Study of Short NSM–FRP Bar Anchorages

Author(s): D.G. Novidis and S.J. Pantazopoulou

Publication: Special Publication

Volume: 230


Appears on pages(s): 391-410

Keywords: analytical model; bond; carbon fiber reinforcement polymerbars; mechanical tests; near surface mounted bars; slip

Date: 10/1/2005

In this paper bond tests conducted on short NSM-bar anchorages arepresented and results are evaluated to determine the effect of design variables ondevelopment capacity. Specimens were designed so as to minimize spurious secondarystresses along the bonded length. Parameters of the study were the groove dimensionsand the embedment length. Bars were CFRP reinforcement with sandblasted surfacecharacteristics. Analytical expressions are derived from first principles so as to interpretthe observed experimental trends. The parameters of the analytical bond stress - slipmodel are calibrated to the experimentally derived bond-slip relationships in order toestablish a limit-state model for post-installed reinforcement, for practical upgradingapplications.