ANALYTICAL CONSIDERATION OF MECHANICAL CHARACTERISTICS OF CLT SLABS WITH DIFFERENT LAYER COMPOSITION

Abstract

 Cross laminated Timber (CLT) is made by orthogonal gluing plates to each other. In addition, CLT slab is lightweight compared to a reinforced concrete deck and a steel deck. CLT can be expected to apply for bridge deck. There are several cases that CLT is applied to bridge deck. The deflection and stress are reduced by changing the layer composition of CLT, and it is possible to rational design of CLT. In this study, we consider the mechanical characteristics of 4 CLT slabs with different laminar composition. As a result, it is more advantageous to glue the side surface of the plate for load transfer of the width direction of the road. And, deflection and stress can be reduced by increasing the area of high grade parallel layers.