Flexural behaviour of timber-concrete composite floor systems linearly supported at two edges

Timber-concrete composite (TCC) structures consist of thin concrete slabs connected by stud or bonding to glulam beams. They emerged as a valuable system with light-weight elements characterised by high strength and stiffness. However, the structural efficiency of real-scale TCC floors with an adhesive-based connection systems requires further investigation to confirm the promising results of small-scale experimental studies.To contribute to this investigation, this study conducts real-scale experiments on five timber-concrete com-posite floor specimens that are linearly supported at two edges. The flexural behaviour of the system is assessed using a four-point bending test, and its strength and displacement capacity are also tested. The study also pro-vides insights on the strain profile and relative displacement of the system's cross sections.The experimental results indicate that the composite structure has adequate mechanical behaviour that is characterised by a linear response up to failure, without relative displacement at the concrete-timber interface surface. The study confirms the potential of TCC floors as prefabricated construction elements, demonstrating that the system complies with standard performance requirements.