63089 2024 eng 2752 2761 conferenceobject International Association for Shell and Spatial Structures (IASS) Zürich, Schweiz 0 -- -- -- An optimisation tool was developed to reduce the embodied carbon of floor systems. The considered system consists of a doubly curved beam-like shell made of carbon-fibre-reinforced polymer (CFRP) prestressed concrete and an infill layer. The thin-walled design of the system makes it susceptible to sound excitation. Therefore, the optimisation tool considers the static ultimate and serviceability limit states and the sound insulation aspect. Due to a lack of experience with the building acoustic properties of this floor system, it is, in practice, often simplified as a homogeneous floor. This paper aims to investigate its acoustic behaviour in more detail using numerical simulations and to integrate the gained knowledge into the optimisation tool. For this purpose, a simulation concept is set up and implemented. Simulations are carried out for different combinations of geometry and material parameters of the floor system. The data obtained is summarised into linear regression equations that estimate the weighted airborne sound reduction index and the weighted equivalent normalised impact sound pressure level of the system. The optimisation results based on these equations show a clear difference compared to those based on the above-mentioned simplified approach. Proceedings of the IASS 2024 Symposium: Redefining the Art of Structural Design IASS 2024 Annual Symposium: Redefining the Art of Structural Design Zurich, Switzerland 26.08.2024 30.08.2024 publish Ahmad Eiz Eddin P. Merz M. Dombrowski J. Loutfi B. Zeitler eng uncontrolled Building acoustic simulation eng uncontrolled Impact sound pressure level eng uncontrolled Airborne sound reduction index eng uncontrolled Doubly curved beam-like shells eng uncontrolled CFRP eng uncontrolled Interdisciplinary optimisation Ingenieurbau 7 Bauwerkssicherheit 7.3 Brandingenieurwesen Infrastruktur Datei im Netzwerk der BAM verfügbar ("Closed Access") Graue Literatur Leichtbau