本研究では，拘束木材の乾燥収縮の影響を受けない構成とした，拘束材に集成材と鋼板を用いた座屈拘束ブレース(以下，木鋼BRB)実大試験体を作製し，性能実験を行うことで芯材局部座屈によって生じる破壊モードを明らかにし，それらに基づいた設計用評価式の提案を試みました。2019年より継続していた木鋼BRBの続報です。論文はこちら
While BRBs with mass timber as the restrainer have been widely studied, the deformation capacity and design criteria of full-scale specimens are still unclear, as the fracture properties are different from conventional BRBs with mortar-filled steel restrainer, including the need to consider the effect of drying shrinkage of mass timber restrainer. In this study, cyclic loading tests have been carried out on full-scale BRBs with mass timber and steel plate restraint and with a configuration that is not affected by drying shrinkage. The failure modes exhibited are carefully studied and evaluation methods are proposed.