INFLUENCE OF TREE SPECIES COMPOSING WOODY SHELL ON STRUCTURAL PERFORMANCE OF EWECS COLUMN

Abstract

Results of an experimental study on the structural performance of EWECS columns using glued-laminated timber of Japanese cedar are summarized. The specimens with different shear span ratios ranging from 1.0 to 2.0 were tested under constant axial load and lateral load reversals to figure out the influence of tree species composing woody shell and shear-span ratios. The results indicated that the superposition method is accurate means of estimating the ultimate strength of EWECS columns and there is little difference between tree species with respect to behavior of the wood shell.