2021 Volume 70 Issue 7 Pages 561-566
To promote the use of CLT, flexural property including anisotropy were examined. Specimens cut from Five-layer five-ply CLT constructed with Sugi (Cryptomeria japonica D. Don) were used for out-of-plane bending test. Results both in major and minor strength direction are summarized as follows: 1) The strength in minor strength direction specimens should be evaluated as 4 laminar structure except the most outer laminar. 2) As for major strength direction specimens, it was suggested that the strength was affected by Mechano-sorptive creep. 3) In the case of minor strength direction specimens, consideration of Mechano-sorptive creep was thought not to be necessary. 4) The duration of load factor of CLT was almost equivalent to the duration of load factor commonly known for solid lumber.
