Finite Element Analysis of Dynamic Characteristics and Bending Stiffness for Cross Laminated Timber Floor Panels with and without Openings

Ljiljana Kozarić,Smilja Bursać,Miroslav Bešević,Martina Vojnić Purčar,Žikica Tekić

doi:10.5552/drvind.2021.2037

Ljiljana Kozarić, Smilja Bursać + Show 3 more

Open Access

https://doi.org/10.5552/drvind.2021.2037

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Abstract

The aim of this paper is to present numerical investigations of dynamic characteristics and bending stiffness for cross laminated timber floor panels with and without service openings. Five-layer panels with the outer layers oriented in the longitudinal direction of the panel have been analyzed. In order to explore the full potential of this floor system using a limited number of measurements and structural tests, models based on the finite element method have been proposed, validated against experimental results and then used to investigate the effect of opening position in the floor on main structural performance parameters. The results showed that, when the need for additional service opening appears, a slight decrease of the main structural characteristics of the cross laminated timber floor panels is achievable with an adequate geometrical position of the opening in the floor.

Highlights

The aim of this paper is to present numerical investigations of dynamic characteristics and bending stiffness for cross laminated timber floor panels with and without service openings
In order to explore the full potential of this floor system using a limited number of measurements and structural tests, models based on the finite element method have been proposed, validated against experimental results and used to investigate the effect of opening position in the floor on main structural performance parameters
The results showed that, when the need for additional service opening appears, a slight decrease of the main structural characteristics of the cross laminated timber floor panels is achievable with an adequate geometrical position of the opening in the floor

Summary

Introduction

CLT was first developed and used in Germany and Austria in the early 1990s and has been gaining popularity ever since (Blass and Fellmosser, 2004; Laguarda-Mallo and Espinoza, 2014; Espinoza et al, 2016). It is increasingly used in construction applications such as floors, walls, beams and has the potential to replace concrete, masonry, and steel in some applications (Pei et al, 2016; Wei et al, 2020).

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