@article{oai:nagasaki-u.repo.nii.ac.jp:00027034,
 author = {中原, 浩之 and 陳, 逸鴻 and 下村, 崇人 and 石川, 晃規 and 川野, 桃熙},
 issue = {98},
 journal = {長崎大学大学院工学研究科研究報告, Reports of Graduate School of Engineering, Nagasaki University},
 month = {Jan},
 note = {The authors have been studying for a seismic retrofit for steel structures by adding a knee brace which is jointed to the existing structures by vises made of high hardness metal screw bolts. The retrofitting method, which was proposed and published by the authors in 2019, was able to provide the easy set up and decrease the cost of the retrofitting construction. An experimental study has been conducted for steel frames retrofitted by the knee braces. The knee brace was jointed to the frame by the vices. The connection between the end plate of the knee brace and steel beam was subjected to frictional force and tensile or compressive force simultaneously under some earthquake motions. In order to clarify the strength against two different forces, two basic tests have been conducted. The simple frictional strength was studied through tensile test of two steel coupons connected by the vises. The yield strength of the end plate or flange of the beam or column with the out-of-plane deformation was studied through  the test of split-T specimens connected by the vises. Based on these studies, the relations between the connecting strength and slipping displacement under actual deformation was investigated. The strength of the connection was estimated safely by the calculated strength by simple equation. The strength of the connection increased gradually after attaining the calculated strength. From the observation of no drop and no loose of the vises in the test, the structural performance of the connections by the vises was confirmed experimentally., 長崎大学大学院工学研究科研究報告, 52(98), pp.16-22; 2022},
 pages = {16--22},
 title = {硬度の高いボルトを有する挟締器具を用いた鋼構造接合部の摩擦接合強度に関する実験的研究},
 volume = {52},
 year = {2022}
}