Showing papers by "Edoardo Cosenza published in 2012"
TL;DR: In this paper, the authors investigated the fire endurance of concrete members reinforced with fiber reinforced polymer (FRP) bars and found that the length of the FRP bars in the zone of slabs not directly exposed to fire is much more relevant to fire endurance than the concrete cover in a zone directly exposing to fire.
Abstract: Intuitively, the fire endurance of concrete members reinforced with fiber reinforced polymer (FRP) bars is related to the decrease in the mechanical properties of the materials concerned, especially resin. Large-scale fire tests recently performed on nine concrete slabs reinforced with glass FRP bars demonstrated the importance of bond between FRP and concrete for performance under fire situations. The experimental results showed that (1) the length of the FRP bars in the zone of slabs not directly exposed to fire (namely, anchoring length in fire situations) can be much more relevant to fire endurance than the concrete cover in the zone directly exposed to fire; and (2) the shape of the bar, for instance bent at the end, allows a reduction in anchoring length. From a design point of view, evaluating the necessary anchoring length through a bond model seems to be a key aspect. Full-scale test results, extensively presented elsewhere, are used in this paper to investigate the bond behavior of FRP b...
39 citations
TL;DR: In this paper, three methods combining the accidental eccentricity prescribed by EC8 to the procedure which extends the N2 method to torsionally flexible structures are proposed and discussed, each of them provides four modal response spectrum analyses (one for each model, corresponding to each position of center of mass) and eight non linear static analyses (two signs for four models).
37 citations
TL;DR: In this paper, a multiscale approach is proposed for shear and flexural modeling of unstrengthened and FRP-wrapped hollow members, which is able to predict the fundamentals of the behavior of hollow confined members in terms of strength, flexural behavior and ductility.
8 citations