A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental investigation on screw reinforcement of timber members under compression perpendicular to the grain
https://orcid.org/0000-0001-8002-8481
https://orcid.org/0000-0003-2646-0219
Abstract This paper investigates the effect of screw reinforcement on the capacity of timber members under compression perpendicular to the grain. The predictions of existing capacity models are compared to the experimental results of 39 timber specimens, distinguished by different load, screw and geometric configurations. Current capacity models assume two failure mechanisms, mainly characterized by their location, i.e. the contact area of the applied load (first mode) or the screw tips (second mode). However, the experimental tests reveal that the second mode never occurs despite the model predicting the occurrence of the second mode in more than half of the tested specimens. Additionally, the experimental tests show the fallacy of existing models in accurately estimating the capacity associated with the second failure mode. Parallely, the model appears to be relatively conservative for the first failure mode.
Highlights Screw reinforcement for timber specimens under compression perpendicular to grain. Experimental tests on multiple specimens with different geometry and load conditions. Validation of the capacity model according to the Eurocode 5 proposal. The model does not seize the failure mechanism by the screw tips. The model is slightly conservative for the failure by the load steel plate.
Experimental investigation on screw reinforcement of timber members under compression perpendicular to the grain
https://orcid.org/0000-0001-8002-8481
https://orcid.org/0000-0003-2646-0219
Abstract This paper investigates the effect of screw reinforcement on the capacity of timber members under compression perpendicular to the grain. The predictions of existing capacity models are compared to the experimental results of 39 timber specimens, distinguished by different load, screw and geometric configurations. Current capacity models assume two failure mechanisms, mainly characterized by their location, i.e. the contact area of the applied load (first mode) or the screw tips (second mode). However, the experimental tests reveal that the second mode never occurs despite the model predicting the occurrence of the second mode in more than half of the tested specimens. Additionally, the experimental tests show the fallacy of existing models in accurately estimating the capacity associated with the second failure mode. Parallely, the model appears to be relatively conservative for the first failure mode.
Highlights Screw reinforcement for timber specimens under compression perpendicular to grain. Experimental tests on multiple specimens with different geometry and load conditions. Validation of the capacity model according to the Eurocode 5 proposal. The model does not seize the failure mechanism by the screw tips. The model is slightly conservative for the failure by the load steel plate.
Experimental investigation on screw reinforcement of timber members under compression perpendicular to the grain
https://orcid.org/0000-0001-8002-8481
https://orcid.org/0000-0003-2646-0219
Abstract This paper investigates the effect of screw reinforcement on the capacity of timber members under compression perpendicular to the grain. The predictions of existing capacity models are compared to the experimental results of 39 timber specimens, distinguished by different load, screw and geometric configurations. Current capacity models assume two failure mechanisms, mainly characterized by their location, i.e. the contact area of the applied load (first mode) or the screw tips (second mode). However, the experimental tests reveal that the second mode never occurs despite the model predicting the occurrence of the second mode in more than half of the tested specimens. Additionally, the experimental tests show the fallacy of existing models in accurately estimating the capacity associated with the second failure mode. Parallely, the model appears to be relatively conservative for the first failure mode.
Highlights Screw reinforcement for timber specimens under compression perpendicular to grain. Experimental tests on multiple specimens with different geometry and load conditions. Validation of the capacity model according to the Eurocode 5 proposal. The model does not seize the failure mechanism by the screw tips. The model is slightly conservative for the failure by the load steel plate.
Experimental investigation on screw reinforcement of timber members under compression perpendicular to the grain
Tomasi, Roberto (author) / Aloisio, Angelo (author) / Hånde, Eldbjørg Aaraas (author) / Thunberg, Kari Ryen (author) / Ussher, Ebenezer (author)
Engineering Structures ; 275
2022-10-17
Article (Journal)
Electronic Resource
English
Timber in compression perpendicular to the grain
| British Library Conference Proceedings | 1997
Structural timber and glulam in compression perpendicular to grain
| British Library Online Contents | 2000
Experimental study of locally loaded timber in compression perpendicular to the grain
| Taylor & Francis Verlag | 2011