TY - CONF A1 - Dombrowski, M. A1 - Hückler, A. A1 - Stelzner, Ludwig A1 - Häßler, Dustin A1 - Heidemann, L. A1 - Reinhold, S. A1 - Zeitler, B. A1 - Früke, J. A1 - Lenz, T. A1 - Theuerkauf, H. A1 - Söll, S. A1 - Reyher, B. A1 - Schlaich, M. T1 - Innovative lightweight floors made of prestressed CFRP-reinforced concrete – from research to construction practice N2 - 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 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. T2 - XI International Symposium on Fiber Reinforced Concrete (Befib 2024) CY - Dresden, Germany DA - 15.09.2024 KW - Lightweight floor system KW - Prestressed CFRP concrete KW - Fire resistance KW - Sound insulation PY - 2024 SP - 246 EP - 256 AN - OPUS4-62431 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -