摘要：

The cross laminated timber (CLT) concept has a potential to improve the performance of timber structures. Combinations of anisotropic wood material properties and the directional lay-ups of laminated structures give a high degree-of-freedom in the conceptual design of CLT. Many conditions can be taken into account in the strive for optimal performance. Herein, finite element analyses have been used to study the vibration performance of individual CLT panels, and thereafter CLT floors. The first part of the paper briefly describes a CLT finite element model. In the second part, a parametric study has been performed on single CLT panels. The main objective of this study was to explore the effect of various material qualities included their relative distribution within the panel. Performance was measured using the vibration parameter described by Hu and Chui (2004). In the third part, the vibration properties of CLT floors were examined. Main parameters were the span of the floor, the width of single panels, the stiffness of connections in-between single panels and the floor configuration. In the last part, an application is developed to illustrate the effects of these simple design considerations. The study contributes to an improved basis of design for cross laminated timber plates.

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