@article{lunn_lucier_rizkalla_cleland_gleich_2015, title={New generation of precast concrete double tees reinforced with carbon-fiber reinforced polymer grid}, volume={60}, ISSN={0887-9672}, url={http://dx.doi.org/10.15554/pcij.07012015.37.48}, DOI={10.15554/pcij.07012015.37.48}, number={4}, journal={PCI Journal}, publisher={Precast/Prestressed Concrete Institute}, author={Lunn, Dillon and Lucier, Gregory and Rizkalla, Sami and Cleland, Ned and Gleich, Harry}, year={2015}, month={Jul}, pages={37–48} } @article{lunn_rizkalla_2014, title={Design of FRP-Strengthened Infill Masonry Walls Subjected to Out-of-Plane Loading}, volume={18}, ISSN={["1943-5614"]}, DOI={10.1061/(asce)cc.1943-5614.0000412}, abstractNote={AbstractFiber-reinforced polymer (FRP) strengthening systems for infill-masonry walls are typically designed to resist flexural stresses caused by out-of-plane pressure. Previous research has shown that there are potential premature failure mechanisms caused by shear sliding of the infill, which could reduce the effectiveness of the strengthening system. Current design guidelines for strengthening of masonry walls with FRP do not include guidelines for infill-masonry. This paper presents a rational approach for the design and analysis of FRP-strengthened infill-masonry walls subjected to out-of-plane loading, including the effect of using FRP end anchorage. The approach is based on consideration of four potential mechanisms: arching, shear sliding, debonding of the FRP in the overlap region, and failure of the FRP end-anchorage system. The predictions based on the proposed rational approach agree well with the measured values from two experimental programs.}, number={3}, journal={Journal of Composites for Construction}, author={Lunn, D. and Rizkalla, S.}, year={2014}, month={Jun} } @article{carlson_traub-dargatz_lunn_morley_kohler_kasper_landolt_barnett_lunn_2013, title={Equine Viral Respiratory Pathogen Surveillance at Horse Shows and Sales}, volume={33}, ISSN={0737-0806}, url={http://dx.doi.org/10.1016/j.jevs.2012.06.006}, DOI={10.1016/j.jevs.2012.06.006}, abstractNote={Equine respiratory viral infections cause significant worldwide disease and economic loss. Common causes include equine influenza virus (EIV) and equine herpesviruses-1 and -4 (EHV-1 and -4), and risk of exposure to these agents may be highest in young horses commingling at sales and competitive events. A surveillance study was conducted at two horse shows and two Thoroughbred sales to determine whether horses shed EHV-1, EHV-4, or EIV on arrival, or 2-4 days later, and whether shedding was associated with identifiable risk factors. Real-time polymerase chain reaction assays were used to detect EHV-1, EHV-4, and EIV nucleic acid in nasal swabs obtained from 369 horses at the four events. In response to evidence of clinical disease, 82 additional horses were sampled at two farms providing horses for one of the sales. On arrival at the events, shedding of EHV-1 was detected in 3.3%, EHV-4 in 1.1%, and EIV in 0.8% of horses. EHV-1 was detected at low levels, and EHV-1 and EHV-4 detection was not associated with clinical disease. EIV was detected only in horses at a Thoroughbred sale, in association with an outbreak of respiratory disease traced back to regional farms. On arrival at events, horses younger than 2 years had a significantly greater risk of shedding EHV-1 compared with older horses; no other significant risk factors associated with viral shedding were identified. Thus, there is a risk of exposure to EIV, EHV-1, and EHV-4 at equine events, and horses and events should be managed to mitigate this risk.}, number={4}, journal={Journal of Equine Veterinary Science}, publisher={Elsevier BV}, author={Carlson, Jennifer K. and Traub-Dargatz, Josie L. and Lunn, D. Paul and Morley, Paul S. and Kohler, Andi and Kasper, Katheryne and Landolt, Gabriele A. and Barnett, D. Craig and Lunn, Katharine F.}, year={2013}, month={Apr}, pages={229–237} } @article{lunn_rizkalla_2011, title={Strengthening of Infill Masonry Walls with FRP Materials}, volume={15}, ISSN={["1943-5614"]}, DOI={10.1061/(asce)cc.1943-5614.0000088}, abstractNote={This paper evaluates the effectiveness of different externally bonded glass fiber–reinforced polymer (GFRP) systems for increasing the out-of-plane resistance of infill masonry walls to loading. The research included a comprehensive experimental program comprising 14 full-scale specimens, including four unstrengthened (control) specimens and 10 strengthened specimens. To simulate the boundary conditions of infill walls, all specimens consisted of a reinforced concrete (RC) frame, simulating the supporting RC elements of a building superstructure, which was infilled with solid concrete brick masonry. The specimens were loaded out-of-plane using uniformly distributed pressure to simulate the differential (suction) pressure induced by a tornado. Parameters investigated in the experimental program included aspect ratio, FRP coverage ratio, number of masonry wythes, and type of FRP anchorage. Test results indicated that the type of FRP anchorage had a significant effect on the failure mode. Research findings c...}, number={2}, journal={JOURNAL OF COMPOSITES FOR CONSTRUCTION}, author={Lunn, Dillon S. and Rizkalla, Sami H.}, year={2011}, pages={206–214} }