%0 Journal Article
%J Journal of Structural Engineering
%D 2018
%T Experimental and analytical investigation of FRP retrofitted glued-laminated beams subjected to simulated blast loading
%A Lacroix, D
%A Doudak, G
%X An experimental program investigating the potential of fiber-reinforced polymers (FRPs) as a strengthening option for glulam beams subjected to simulated blast loads was undertaken. A total of four different retrofit configurations were investigated along with a fifth alternative for restoring previously damaged beams. Increases in resistance and maximum deflection in the range of 1.35-1.66 and 1.3-1.62, respectively, were obtained when FRP tension laminates with and without confinement were used. Partial-length and full-length confinement prevented premature debonding and significantly altered the failure mode from simple tension failure to a combination of brash tension and compression failure while limiting the damage to a small region. The results also showed that the addition of FRP contributed to an increase of 1.17 in the tensile failure strain relative to the unretrofitted beams. A material predictive model that accounts for strain-rate effects was developed using experimental stress-strain relationships determined from coupon tests. The proposed model compared well with resistance curves obtained from full-scale testing of glulam beam elements subjected to simulated blast loading. 
%B Journal of Structural Engineering
%I American Society of Civil Engineers
%V 144
%P 04018089
%G eng
%U https://www.scopus.com/record/display.uri?eid=2-s2.0-85046891561&origin=inward&txGid=4f6ba4b37b9a6f3a55dab942044e78d5