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Proposing new adhesive-free timber edge connections for cross-laminated timber panels: A step toward sustainable construction
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0009-0000-0380-386X
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0000-0002-9431-7820
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0000-0003-2023-689x
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.ORCID iD: 0000-0001-8413-3975
2024 (English)In: Case Studies in Construction Materials, E-ISSN 2214-5095, Vol. 20, article id e02975Article in journal (Refereed) Published
Abstract [en]

The use of timber as a building material is becoming increasingly popular thanks to its superior environmental performance compared with concrete and steel. However, timber structures rely on solid connections to improve their weak expansibility. Steel connections can be prone to corrosion over time, leading to the decreased structural integrity. Additionally, steel connections require more material and energy to manufacture and install compared with timber connections. This article focuses on the flexural performance of cross-laminated timber (CLT) panels with adhesive-free edge connections under four-point bending tests. First, numerical models of experimentally tested CLT panels were constructed using the finite element (FE) software ABAQUS. Then, these FE models were validated with the comparisons of their results with those of the experimental tests. Afterward, four new adhesive-free edge connections using timber for the CLT panels were developed in this study, helping sustainable construction. Utilizing the designed edge connections of the current study, forty-one parametric studies were numerically conducted on the connected CLT panels to investigate their ultimate loads, strains, displacements, moment capacities, failure modes, and effective stiffness. The factors affecting the edge connections’ load-bearing capacity were also examined and discussed. The study provides helpful insights into the development of CLT as a sustainable construction material with improved adhesive-free edge connections.

Place, publisher, year, edition, pages
Elsevier, 2024. Vol. 20, article id e02975
Keywords [en]
Cross-laminated timber, Adhesive-free edge connections, Load-bearing capacity, Finite element method, Flexural performance, VUSDFLD subroutine
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:hig:diva-43804DOI: 10.1016/j.cscm.2024.e02975Scopus ID: 2-s2.0-85186126820OAI: oai:DiVA.org:hig-43804DiVA, id: diva2:1837546
Available from: 2024-02-14 Created: 2024-02-14 Last updated: 2024-03-11Bibliographically approved

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Honghao, RenBahrami, AlirezaCehlin, MathiasWallhagen, Marita

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