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A platform for research: civil engineering, architecture and urbanism
Fire endurance of loaded and liquid-cooled GFRP slabs for construction
Presented is an experimental study on the fire behavior of GFRP (glass fiber-reinforced polymer) load-carrying slabs for building and bridge applications. Fire experiments were performed on cellular full-scale slabs with and without internal liquid cooling. The slabs were subjected to serviceability limit state loads during ISO 834 fire exposure from the underside. Liquid cooling was demonstrated to be an effective way of improving the fire endurance. The code-required 90-minute fire resistance for buildings was met. After an increase in the first 20 min, temperatures, deflections, and axial strains of the liquid-cooled slabs approached a nearly steady-state condition in the 70 to 100 min that followed. The remaining total safety factor in post-fire experiments was greater than 3.3 and therefore still sufficient to prevent structural collapse. The non-liquid cooled reference specimen provided structural resistance during fire exposure for 57 min. For bridge applications, the fire endurance of non-liquid cooled cellular GFRP bridge decks is sufficiently high in the case of fire from the underside.
Fire endurance of loaded and liquid-cooled GFRP slabs for construction
Presented is an experimental study on the fire behavior of GFRP (glass fiber-reinforced polymer) load-carrying slabs for building and bridge applications. Fire experiments were performed on cellular full-scale slabs with and without internal liquid cooling. The slabs were subjected to serviceability limit state loads during ISO 834 fire exposure from the underside. Liquid cooling was demonstrated to be an effective way of improving the fire endurance. The code-required 90-minute fire resistance for buildings was met. After an increase in the first 20 min, temperatures, deflections, and axial strains of the liquid-cooled slabs approached a nearly steady-state condition in the 70 to 100 min that followed. The remaining total safety factor in post-fire experiments was greater than 3.3 and therefore still sufficient to prevent structural collapse. The non-liquid cooled reference specimen provided structural resistance during fire exposure for 57 min. For bridge applications, the fire endurance of non-liquid cooled cellular GFRP bridge decks is sufficiently high in the case of fire from the underside.
Fire endurance of loaded and liquid-cooled GFRP slabs for construction
Feuerbeständigkeit von belasteten und flüssigkeitsgekühlten glasfaserverstärkten Kunststoffplatten für das Bauwesen
Keller, Thomas (author) / Tracy, Craig (author) / Hugi, Erich (author)
Composites, Part A: Applied Science and Manufacturing ; 37 ; 1055-1067
2006
13 Seiten, 21 Bilder, 2 Tabellen, 9 Quellen
Article (Journal)
English
Fire endurance of loaded and liquid-cooled GFRP slabs for construction
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