A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mechanical characterization of soundproofed inclined screws connections
https://orcid.org/0000-0003-1577-7181
https://orcid.org/0000-0002-6190-0139
https://orcid.org/0000-0002-9178-7501
Abstract Timber structures are susceptible to sound propagation problems. The issue can be mitigated by decoupling structural components at connections level by means of polyurethane soundproofing interlayers. These layers are much softer than timber but, at the same time, they are characterized by higher friction coefficients. In this paper, an experimental investigation is carried out to characterize the mechanical behavior of insulated screw connections assessing the implications of the soundproofing layer use. Different interlayers, screw inclination angles and setups are considered. The load–slip behavior is studied, and a proper empirical model, suitable for performing push-over analysis of buildings involving soundproofed connections, is derived. The essential design parameters, namely the slip modulus, the strength and ductility, are determined and compared with existing models predictions, thus testing their accuracy. Substantial reductions in terms of stiffness, load-carrying capacity and ductility are observed in soundproofed connections.
Highlights Timber-to-timber connections with soundproofing interlayers are tested. Soundproofing interlayers substantially reduce mechanical performances. An alternative definition of the ultimate slip modulus is suggested. An empirical model for the load–slip behavior is formulated and validated. Withdrawal failure mechanism can be considered additive to the transversal mechanisms.
Mechanical characterization of soundproofed inclined screws connections
https://orcid.org/0000-0003-1577-7181
https://orcid.org/0000-0002-6190-0139
https://orcid.org/0000-0002-9178-7501
Abstract Timber structures are susceptible to sound propagation problems. The issue can be mitigated by decoupling structural components at connections level by means of polyurethane soundproofing interlayers. These layers are much softer than timber but, at the same time, they are characterized by higher friction coefficients. In this paper, an experimental investigation is carried out to characterize the mechanical behavior of insulated screw connections assessing the implications of the soundproofing layer use. Different interlayers, screw inclination angles and setups are considered. The load–slip behavior is studied, and a proper empirical model, suitable for performing push-over analysis of buildings involving soundproofed connections, is derived. The essential design parameters, namely the slip modulus, the strength and ductility, are determined and compared with existing models predictions, thus testing their accuracy. Substantial reductions in terms of stiffness, load-carrying capacity and ductility are observed in soundproofed connections.
Highlights Timber-to-timber connections with soundproofing interlayers are tested. Soundproofing interlayers substantially reduce mechanical performances. An alternative definition of the ultimate slip modulus is suggested. An empirical model for the load–slip behavior is formulated and validated. Withdrawal failure mechanism can be considered additive to the transversal mechanisms.
Mechanical characterization of soundproofed inclined screws connections
https://orcid.org/0000-0003-1577-7181
https://orcid.org/0000-0002-6190-0139
https://orcid.org/0000-0002-9178-7501
Abstract Timber structures are susceptible to sound propagation problems. The issue can be mitigated by decoupling structural components at connections level by means of polyurethane soundproofing interlayers. These layers are much softer than timber but, at the same time, they are characterized by higher friction coefficients. In this paper, an experimental investigation is carried out to characterize the mechanical behavior of insulated screw connections assessing the implications of the soundproofing layer use. Different interlayers, screw inclination angles and setups are considered. The load–slip behavior is studied, and a proper empirical model, suitable for performing push-over analysis of buildings involving soundproofed connections, is derived. The essential design parameters, namely the slip modulus, the strength and ductility, are determined and compared with existing models predictions, thus testing their accuracy. Substantial reductions in terms of stiffness, load-carrying capacity and ductility are observed in soundproofed connections.
Highlights Timber-to-timber connections with soundproofing interlayers are tested. Soundproofing interlayers substantially reduce mechanical performances. An alternative definition of the ultimate slip modulus is suggested. An empirical model for the load–slip behavior is formulated and validated. Withdrawal failure mechanism can be considered additive to the transversal mechanisms.
Mechanical characterization of soundproofed inclined screws connections
De Santis, Yuri (author) / Aloisio, Angelo (author) / Pasca, Dag Pasquale (author) / Gavrić, Igor (author) / Fragiacomo, Massimo (author)
2023-12-14
Article (Journal)
Electronic Resource
English
Mechanical behaviour of timber‐to‐concrete connections with inclined screws
| DOAJ | 2007
Mechanical behaviour of timber‐to‐concrete connections with inclined screws
| BASE | 2007
Mechanical behaviour of timber‐to‐concrete connections with inclined screws
| BASE | 2007