Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A hysteresis model for timber joints with dowel-type fasteners
Predicting the mechanical behaviour and the failure mechanism of timber joints with dowel-type fasteners re- quires consideration of several factors, including the geometrical and mechanical properties of the metal fas- tener, the physical properties of timber and the interaction between such elements. This paper proposes a nu- merical model where a joint is schematized as an elasto-plastic beam in a non-linear medium with a compression-only behaviour. Unlike the differential approach adopted by most of the hysteresis models pub- lished in literature, this model predicts the load-displacement response using simple mechanical relationships and basic input parameters. Furthermore, the model is capable of reproducing the effect of the cavity formed around the fastener by timber crushing, and simulates the hysteretic behaviour and the energy dissipation under cyclic conditions. Shear tests are reproduced on nailed steel-to-timber joints in Cross-Laminated Timber and results are compared to the experimental test data obtained on similar single fastener joints. Simulations lead to accurate predictions of both the mechanical behaviour (initial stiffness, maximum load-carrying capacity, global shape of the loading curve and of the hysteresis cycles) and the total energy dissipation observed in the tests.
A hysteresis model for timber joints with dowel-type fasteners
Predicting the mechanical behaviour and the failure mechanism of timber joints with dowel-type fasteners re- quires consideration of several factors, including the geometrical and mechanical properties of the metal fas- tener, the physical properties of timber and the interaction between such elements. This paper proposes a nu- merical model where a joint is schematized as an elasto-plastic beam in a non-linear medium with a compression-only behaviour. Unlike the differential approach adopted by most of the hysteresis models pub- lished in literature, this model predicts the load-displacement response using simple mechanical relationships and basic input parameters. Furthermore, the model is capable of reproducing the effect of the cavity formed around the fastener by timber crushing, and simulates the hysteretic behaviour and the energy dissipation under cyclic conditions. Shear tests are reproduced on nailed steel-to-timber joints in Cross-Laminated Timber and results are compared to the experimental test data obtained on similar single fastener joints. Simulations lead to accurate predictions of both the mechanical behaviour (initial stiffness, maximum load-carrying capacity, global shape of the loading curve and of the hysteresis cycles) and the total energy dissipation observed in the tests.
A hysteresis model for timber joints with dowel-type fasteners
Izzi, Matteo (Autor:in) / Rinaldin, Giovanni (Autor:in) / Polastri, Andrea (Autor:in) / Fragiacomo, Massimo (Autor:in) / Izzi, Matteo / Rinaldin, Giovanni / Polastri, Andrea / Fragiacomo, Massimo
01.01.2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
Double shear timber joints with dowel type fasteners
| TIBKAT | 1999
Double shear timber joints with dowel type fasteners
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Stiffness of dowel-type fasteners in timber–concrete joints
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Stiffness of dowel-type fasteners in timber-concrete joints
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Edge Joints with Dowel Type Fasteners in Cross Laminated Timber
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