送電用鋼管鉄塔主柱材に螺旋型局部座屈をもたらした捩りモーメントの発生原因に関する考察

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2019/03/01

タイトル(英語): A Consideration on the Cause of Torsional Moment Contributing Helical Local Buckling in the Main Post of Transmission Steel Pipe Tower

著者名: 太田　浩（東電設計（株）），中村　秀治（東電設計（株）），本郷　榮次郎（東電設計（株）），大園　智章（東京電力パワーグリッド（株）工務部），増子　正貢（東電設計（株））

著者名(英語): Hiroshi Ohta (Tokyo Electric Power Service Company), Hideharu Nakamura (Tokyo Electric Power Service Company), Eijiro Hongo (Tokyo Electric Power Service Company), Tomoaki Osono (Tokyo Electric Power Company), Masatsugu Masuko (Tokyo Electric Power Service Company)

キーワード: 送電用鋼管鉄塔，局部座屈，偏心接合，捩りモーメント，耐荷力　　transmission steel pipe tower，local buckling，eccentric joint，torsional moment，load bearing ability

要約(英語): A construction method to newly build narrow transmission tower inside the existing structure has been studied, and when the full-scale test was carried out, helical buckling was found out in the main pipe post. In the previous paper, we tried to reproduce the helical buckling analytically and clarified that the torsional moment is an essential requirement. However, the torsional moment obtained by usual three-dimensional frame analysis is insufficient for the occurrence of helical local buckling. In this paper, accuracy improvement of the torsional moment and shear force in the main post was attempted while reflecting the eccentric joining of angle brace members, and it is confirmed that the herical local buckling can occur by generating structural asymmetry in the process of reaching maximum strength.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.3 （2019）

本誌掲載ページ: 225-233 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/139/3/139_225/_article/-char/ja/