Innovative Connections Between Hybrid Floor Panels and Timber Columns Able to Reduce the Deflection of the Panel’s Big Span

Abstract

This study experimentally investigates the mechanical response of seval new types of hybrid connections between glulam timber-concrete panels and glulam timber columns. Each panel is composed of glued laminated wood beams and/or concrete constituting the floor and wooden beams constituting the supporting framework for the façade elements. The dimensions of the hybrid panels are defined to ensure appropriate implementation and transport conditions. For these reasons, the width of the panels is fixed at 1.20 m, and the length is 7.5 m. The experiments are conducted at the Laboratory for Composite Materials and Composite Structures at the University Claude Bernard Lyon I. The experimental setup, connection configurations, and material properties are introduced, followed by a detailed analysis of the test results and observations. The obtained results reveal the overall mechanical behavior of the connections. All of the connections are designed to support the same load combination until failure. Based on the results, the new connections are able to reduce the deflection of the floor panel in the middle of the span by 45% in comparison with the common bolted connections that have been designed to support the same load combination and have the same dimensions.

Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials

“…The beams of this panel are the parts that are connected with the vertical elements of the structure (columns, facades, etc.). In this study, the panel is investigated for two connection types (see detail 1 of Figure 1), as the connection's stiffness can vary [4,18]. In addition, the case study examines the effects of the porous material on the floor of the panel in order to damp the vibroacoustic response of the structure (see detail 2 of Figure 1).…”

“…On the other hand, the connection between the timber floor panel and the supporting structure is another important factor in the vibroacoustic behavior of such a structure [3]. A rigid connection (boundary conditions) can help to distribute the load evenly across the panel and prevent it from vibrating excessively as it reduces the deflection of the panel [4,5]. In contrast, a weak or flexible connection can allow the panel to move more freely, which can increase the amount of vibration and sound transmission.…”

Dynamic and Vibroacoustic Response of Timber Floor Panels. Measurements and Non-Linear Numerical Simulations

“…The beams of the panels are the part that is being connected with the columns of the structures. The stiffness of these connections can varies as it depends on the type of the connection as Titirla et al have been presented [20][21][22][23], but in this study only the case of a rigid connection was presented.…”