Linear model to describe the working of a three layers CLT strip slab: Experimental and numerical validation
| Autor: | Chiara Bedon, Martina Sciomenta, Massimo Fragiacomo, Angelo Di Egidio |
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| Přispěvatelé: | Sciomenta, Martina, Di Egidio, Angelo, Bedon, Chiara, Fragiacomo, Massimo |
| Rok vydání: | 2021 |
| Předmět: |
CLT panel
experimental test finite element model homogeneous and mixed configuration linear multi-layer analytical model 020101 civil engineering 02 engineering and technology Bending 0201 civil engineering 0203 mechanical engineering Cross laminated timber Numerical validation Beech Civil and Structural Engineering Series (mathematics) biology business.industry Linear model Building and Construction Structural engineering biology.organism_classification Finite element method 020303 mechanical engineering & transports Slab business Geology |
| Zdroj: | Advances in Structural Engineering. 24:3118-3132 |
| ISSN: | 2048-4011 1369-4332 |
| DOI: | 10.1177/13694332211020403 |
| Popis: | Experimental out-of-plane, four-points bending tests were performed on two series of three-layered Cross Laminated Timber (CLT) panels made of Calabrian Beech and Calabrian Beech and Corsican Pine respectively. The predominant failure mechanism was rolling shear alongthe innerlayer and the glue line. A linear elastic model of a three-layered, CLT panel was developed to describe the stress distribution in CLT slabs in bending, with a focus on their load-bearing performance before the propagation of cracks. In the analytical model, each timber layer was defined as an Euler-Bernoulli beam. The two glue lines were modeled using extensional springs, infinitely rigid in the direction perpendicular to the beam’s axis, and with a defined stiffness in the tangential direction. The outer layers are assumed axially flexible whilethe innerone is regarded as axially rigid. The results of the proposed model were thus compared and validated with the experimental evidence and with additional FE numerical predictions given by 3D numerical simulations carried out in Abaqus. |
| Databáze: | OpenAIRE |
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