Abstract
Timber-Concrete Composite (TCC) structures are emerging worldwide in several civil engineering applications as an effective construction system in terms of structural stiffness and strength, lightness and vibrational behavior. This work aims at fostering an innovative TCC solution for residential floors that combines a thin slab of Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) with Glued Laminated Timber (GLT) beams.In particular, two connection systems with a ductile shear behavior were considered, i.e., a continuous steel mesh plate and a composite steel-UHPFRC dowel connector. Firstly, the shear behaviour of the different connections was experimentally characterized by push-out tests. Secondly, a simplified design of a GLT-UHPFRC floor with a clear span of 9 m was carried out by considering multiple criteria with loads according to Canadian standards. Thirdly, the structural response under bending and the vibrational behavior were characterized by full-scale laboratory tests. Finally, the comparison with existing methods for the prediction of the elastic deflection and the ultimate moment is discussed. The developed GLT-UHPFRC structure provides a powerful solution for lightweight and thin floors in multi-storey buildings.
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