Interprétation du fonctionnement des diaphragmes verticaux des structures en CLT par la méthode des bielles et tirants

Details

Supervisors

Zastavni, Denis ; Patiny, Martin

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil des constructions

Abstract

enNowadays, when ecology is a societal issue, wood is undoubtedly the least harmful building material for the environment. Cross-laminated timber (CLT) panels are generating interest for their mechanical properties. As a recent material, current norms do not provide yet a complete calculation method for their use in vertical diaphragms. The aim of this thesis is to characterize how vertical diaphragms in CLT react via the “SCIA Engineer” software which is a finite element calculation program. Moreover, it is to attempt an interpretation of the results through the Strut-and-Tie Modelling (STM) method. By varying several parameters, the use of numerical simulations demonstrates the possibility to highlight how these parameters influence the forces in the panel and the supports, and what rules can be deducted. In addition to characterizing the performance of the panels, the research offers a suitable Strut-and-Tie model based on the length/height ratio of the panel. The purpose is to provide a Strut-and-Tie model in order to simplify the structure into a lattice whose internal forces and support reactions can be calculated without the use of finite element calculation software.