2026-03-13T17:23:04Z https://kanagawa-u.repo.nii.ac.jp/oai

oai:kanagawa-u.repo.nii.ac.jp:00002985 2023-09-28T04:47:39Z 237:238:239

中央部に鋼材ダンパーを有するRC境界梁に関する実験的研究 －低降伏点鋼を用いた境界梁ダンパーに関する研究　その１－ EXPERIMENTAL STUDY ON COUPLING BEAMS WITH STEEL DAMPERS IN MID-SPAN - Coupling beam dampers with low yield point steel (Part 1) - 熊谷, 仁志 Kumagai, Hitoshi 島崎, 和司 Shimazaki, Kazushi 林, 静雄 Hayashi, Shizuo Steel damper Low yield point steel Steel-Concrete Connection Coupling beam 鋼材ダンパー 低降伏点鋼 根巻き接合 境界梁 RC shear walls coupled with beams are becoming widely used for high-rise buildings in Japan. Since short-span coupling beams are subjected to large displacement during an earthquake, high ductility and excellent energy absorption performance are required. RC coupling beams with low-yield-point steel damper in the mid-span (coupling beam damper) have been developed and experimentally investigated in this study. Steel dampers in the mid-span are embedded into the RC beams at the both ends, and embedded lengths are ranging from 2 to 3.5 times as long as steel depth. The coupling beam dampers provide the stable hysteretic performance up to 1/20 of drift angle, and equivalent damping coefficients of 20 to 30%. Sufficient amount of shear reinforcement needs to be arranged, so as to transfer shear force from steel damper to RC beams. Shear reinforcements are more effective when arranged in the tip of RC beams. カテゴリーⅡ 日本建築学会 2009-04 jpn journal article VoR http://hdl.handle.net/10487/9292 https://kanagawa-u.repo.nii.ac.jp/records/2985 https://doi.org/10.3130/aijs.74.755 10.3130/aijs.74.755 1881-8153 日本建築学会構造系論文集 74 (2009) 638 755 763 https://kanagawa-u.repo.nii.ac.jp/record/2985/files/島崎10 publisher.pdf application/pdf 5.5 MB 2018-11-16