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

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.

Architectural Perspectives on Wood Reuse within Circular Construction: A South–Central European Study

“…Such lamellas can be obtained after deconstructing wooden elements with larger cross-sections. Depending on their quality, these elements can be used in different panel section zones to accept both static and dynamic loads [46].…”

Cross-Laminated Timber Floors With Openings - Serviceability Limit State Verifications

“…Research results on the performance of CLT floors with openings are available in e.g. [5,6]. As presented in [7], simplified rules for the assessment and design of openings in CLT floors seem to vary significantly worldwide.…”

“…The influence of openings was investigated for two sizes of openings, see Figure 2 and Figure 3. The test results, presented in Chapter 2 and in the companion paper [8], not only gave an insight into the structural behaviour of the system, but also provided data that has been used for the calibration of a numerical model, see Chapter 3, followed by a parametrized 5 José Manuel Cabrero, UNAV University of Navarra, Spain, jcabrero@unav.es 6 Stefan Winter, TUM Technical University of Munich, Germany, winter@tum.de x y z numerical study on the influence of openings on deformations and frequencies in the system, see Chapter 4.…”