サブストラクチャ応答実験による高機能座屈拘束ブレースの地震時応答解析

抄録

An Energy dissipation devices, such as high-performance buckling-restrained braces (BRBs) is expected to withstand major earthquakes three times without being replaced. In many cases, their capacities are clearified by tension-compression cyclic loading tests and numerical analyses. For implementing the devices to bridges and other steel structures, it is important to verify the effect of reducing structural response under a ground motion. This paper presents results of the earthquake response analysis of single-story steel portal frame with BRBs installed. And the BRBs are paid attention to by the substructure pesudodynamic testing method. By the present testing method, it is confirmed that the BRB has good energy dissipation performance.