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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Fire Tests on RC Beams Strengthened with NSM
verfasst von : A. Palmieri, S. Matthys, L. Taerwe
Erschienen in: Advances in FRP Composites in Civil Engineering
Verlag: Springer Berlin Heidelberg
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The use of Near Surface Mounted (NSM) FRP for strengthening and rehabilitation of reinforced concrete structures has been the subject of various research projects in recent years. FRP strengthening systems are known to perform weak at elevated temperatures. This can be attributed to the relatively poor performance of both adhesive and FRP matrix polymers at temperatures in the range of their glass transition temperatures. Hence, there is a need for thermal protection of such elements. An investigation on the fire endurance of NSM FRP concrete beams under standard fire conditions was undertaken. Six reinforced concrete beam were strengthened in flexure with NSM bars and insulated with different insulation system. Temperatures and deflections were measured during fire testing. Test results indicated that insulated NSM FRP strengthened beams can achieve a fire endurance of at least two hours.