An experimental study on the partial vertical compression performance of 5 layers 7 ply japanese cypress clt

The recent years have shown the demand for Cross-Laminated-Timber (CLT) with high stiffness and strength for use in CLT for walls and floors of mid-rise buildings. Moreover, the partial compression performance parallel to the outer layer grain of these layer configurations and strength grading is unclear. Partial compression performance is an indispensable material property for the construction of CLT structural analysis models. Therefore, this study reports the results of a compression test and the partial compression parallel for the outer layer grain test of an S90 5-layer 7-ply CLT in consideration of compression rigidity and the effect of additional length.