日本国外ではセルフセンタリング座屈拘束ブレースと呼ばれるデバイスを用いた鉄骨架構の応答制御効果の検証です。トルコITUとの共同研究の成果です。論文はこちら
This paper proposes a new type of buckling-restrained braces with post-tensioned cables (PT-BRB). Such braces enable various hysteresis shapes between bilinear (β=2.0) and flag-shaped (β=1.0) behaviors. After a thorough numerical study for investigating the effect of post-yield stiffness (α) and energy dissipation (β) ratios, 1/3 scale specimens were tested for confirming expected hystereses. With the experimental data acquired, impact of the hysteresis on seismic response of various types of steel structures with PT-BRBs is sought. Seismic performances of structures equipped with PT-BRBs or conventional BRBs are compared.
初期張力材付座屈拘束ブレースを用いた鉄骨架構の応答制御 RESPONSE CONTROL OF STEEL STRUCTURES USING BUCKLING-RESTRAINED BRACES WITH POST-TENSIONED CABLES
