Experimental investigation and beam-theory-based analytical model of cross-laminated timber panels buckling behavior

• Autorzy: Fabrizio Cristiano , Sciomenta Martina , Spera Luca , De Santis Yuri , Pagliaro Stefano , Di Egidio Angelo , Fragiacomo Massimo

Identyfikatory

DOI

10.1007/s43452-023-00713-8

• Języki publikacji: EN

Abstrakty

EN

This paper investigates the buckling behavior of three-layered cross-laminated timber (CLT) panels, from both the experimental and analytical standpoints. Two different series of specimens are considered: the homogeneous ones, which are entirely made of beech, and the hybrid ones, whose inner layers are made of Corsican pine. The experimental tests aim to evaluate the failure limit loads of the specimens, when loaded by an increasing compression tip force. The analytical formulation is first obtained for a panel with a generic number of layers and after it is specialized for a three-layered panel. Timber layers are modeled as internally constrained planar Timoshenko beams linked together by adhesive layers, which are modeled as a continuous distribution of normal and tangential elastic springs. A closed-form solution of the buckling problem is obtained. The achieved Eulerian critical load of CLT panels depends on two parameters, which account for (1) the interaction between timber layers (due to the glue tangential stiffness) and (2) the rolling shear stiffness of the inner layer. Three different failure criteria are introduced to estimate the limit load. Finally, the analytical limit loads and the experimental ones are compared.

Słowa kluczowe

EN

cross laminated timber; beech wood; load-bearing capacity; axial compression; buckling analytical model; Ayrton–Perry criterion

PL

drewno klejone krzyżowo; drewno bukowe; nośność

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 3
• Strony: art. no. e172, 2023
• Opis fizyczny: Bibliogr. 65 poz., fot., wykr.

Twórcy

autor

Fabrizio Cristiano

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

autor

Sciomenta Martina

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0003-1160-4822

autor

Spera Luca

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0002-7491-5858

autor

De Santis Yuri

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0003-1577-7181

autor

Pagliaro Stefano

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0002-4760-8043

autor

Di Egidio Angelo

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0001-5828-5641

autor

Fragiacomo Massimo

• Department of Civil, Architecture and Building and Environmental Engineering, University of L’Aquila, Via Giovanni Gronchi 18, 67100 L’Aquila, AQ, Italy

• https://orcid.org/0000-0002-9178-7501

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)