Bending properties of deconstructable cross-laminated timber-concrete composite floor elements
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Authors
Date
2022-07-04
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
253-260
253-260
Series
Wood Material Science and Engineering, Volume 17, issue 4
Abstract
Design for disassembly using deconstructable connections facilitates recycling and reusing of building materials and, therefore, reduces waste management problems at the end of service life. In this regard, a deconstructable timber-concrete composite connector using self-tapping screws has been developed at Aalto University. In the presented research, an experimental investigation was performed to further evaluate the effectiveness of this connector in fabricating deconstructable cross-laminated timber (CLT)-concrete composite floors. For this purpose, several CLT-concrete composite beams were fabricated using 5-layer CLT and low-shrinkage concrete. Each beam contained one row of connectors to represent a strip of a full-scale floor. The vibration performance, bending properties, interface slip, failure modes, and ease of disassembly of the beams were investigated. The results were compared with the ones from a reference group of beams fabricated with regular screws. Overall, the deconstructable beams performed exceptionally well by attaining 98.5% of the average bending stiffness of the regular beams. The load-carrying capacity was also similar but governed by the CLT plate. The vibration characteristics were comparable in both groups. After the bending test, the deconstructable beams were disassembled. Although the beams had been exposed to unproportionally large deformations under the bending load, the disassembly process was performed successfully.Description
Keywords
Timber-concrete composite, CLT, self-tapping screws, vibration, stiffness, design for disassembly, PERFORMANCE, BEHAVIOR
Other note
Citation
Derikvand, M & Fink, G 2022, ' Bending properties of deconstructable cross-laminated timber-concrete composite floor elements ', Wood Material Science and Engineering, vol. 17, no. 4, pp. 253-260 . https://doi.org/10.1080/17480272.2022.2077658