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軸力を受ける添接板補修鋼管の繰返し曲げ挙動に関する研究 Cyclic Flexural Behavior of Steel Pipes Repaired by Patch Plate Subjected to Constant Axial Force 古西, 和夫 北根, 安雄 伊藤, 義人 FURUNISHI, Kazuo KITANE, Yasuo ITOH, Yoshito open access Copyright © 2012 日本材料学会 Corroded steel pipe Repair Patch plate Load carrying capacity Cyclic flexural behavior Axial force This paper presents a study on cyclic flexural behavior of steel pipes repaired by patch plate subjected to constant axial force. In this study, repaired steel pipes of piled pier are modeled. In FE analyses, steel pipes having various pipe diameters are analyzed under several levels of constant axial compressive stress to understand the buckling behavior of steel pipe repaired by patch plate. It is shown that a required thickness of patch plate is larger than the thickness reduction to achieve the same level of ductility performance in the repaired pipe as in the intact pipe. Furthermore, it is found that the required thickness of patch plate increases with the level of axial force. 日本材料学会 2012-06 jpn journal article VoR http://hdl.handle.net/2237/22943 https://nagoya.repo.nii.ac.jp/records/20813 https://doi.org/10.2472/jsms.61.543 0514-5163 材料 61 6 543 549 https://nagoya.repo.nii.ac.jp/record/20813/files/61_543.pdf application/pdf 17.6 MB 2018-02-21