Innovative lightweight floors made of prestressed CFRP-reinforced concrete – from research to construction practice

  • The presented joint research project “CaPreFloor”, which started in 2023, aims to employ prestressed textile-reinforced concrete using carbonfibre-reinforced polymer (CFRP) to design lightweight floor elements. This allows the reduction of common steel-reinforced concrete floors of 30 cm thickness to a maximum of 6 cm for office, residential, and hotel buildings. Lower material consumption significantly contributes to the conservation of resources and minimises the carbon footprint. In addition, the prefabrication of these floor elements results in high and consistent quality, short construction times and enhanced reusability of the components. A team of experts from various research and practice fields works on this project to achieve the set goal. Currently, open questions include the anchorage and load transfer of the prestressed CFRP reinforcement, structural failure indication, the behaviour of CFRP reinforcement and high-performance concrete at elevated temperatures, as wellThe presented joint research project “CaPreFloor”, which started in 2023, aims to employ prestressed textile-reinforced concrete using carbonfibre-reinforced polymer (CFRP) to design lightweight floor elements. This allows the reduction of common steel-reinforced concrete floors of 30 cm thickness to a maximum of 6 cm for office, residential, and hotel buildings. Lower material consumption significantly contributes to the conservation of resources and minimises the carbon footprint. In addition, the prefabrication of these floor elements results in high and consistent quality, short construction times and enhanced reusability of the components. A team of experts from various research and practice fields works on this project to achieve the set goal. Currently, open questions include the anchorage and load transfer of the prestressed CFRP reinforcement, structural failure indication, the behaviour of CFRP reinforcement and high-performance concrete at elevated temperatures, as well as fire resistance and sound insulation. As a result, an extensive test programme on different size scales will be conducted. Practical aspects, such as design, field of application and life cycle, as well as the development of an automated production plant, are also considered. The paper will present considerations related to the geometry and design, material selection, manufacturing, ecological footprint, and intended experimental test programme. Four different geometries and two different CFRP reinforcements are being examined. As a result, the developed floor must fulfil all practical requirements in building construction.zeige mehrzeige weniger

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Autor*innen:M. Dombrowski, A. Hückler, Ludwig StelznerORCiD, Dustin HäßlerORCiD, L. Heidemann, S. Reinhold, B. Zeitler, J. Früke, T. Lenz, H. Theuerkauf, S. Söll, B. Reyher, M. Schlaich
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Supplementary Proceedings_Befib
Jahr der Erstveröffentlichung:2024
Organisationseinheit der BAM:7 Bauwerkssicherheit
7 Bauwerkssicherheit / 7.3 Brandingenieurwesen
Erste Seite:246
Letzte Seite:256
Freie Schlagwörter:Fire resistance; Lightweight floor system; Prestressed CFRP concrete; Sound insulation
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Infrastruktur / Fire Science
Veranstaltung:XI International Symposium on Fiber Reinforced Concrete (Befib 2024)
Veranstaltungsort:Dresden, Germany
Beginndatum der Veranstaltung:15.09.2024
Enddatum der Veranstaltung:18.09.2024
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.01.2025
Referierte Publikation:Nein
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