実規模送電用鋼管鉄塔の耐力試験における主柱材局部座屈の発生と再現解析に基づく局部座屈荷重に関する考察

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: 2018/07/01

タイトル(英語): Occurrence of Local Cylindrical Shell Buckling during Ultimate Strength Test of a Full-scale Transmission Tower, and Consideration Concerning Local Buckling Strength based on Reproduction Analyses

著者名: 太田　浩（東電設計（株）電気本部），中村　秀治（東電設計（株）電気本部），本郷　榮次郎（東電設計（株）電気本部），松浦　真一（（一財）電力中央研究所 地球工学研究所），花岡　慶（東京電力パワーグリッド（株）工務部送変電建設センター）

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), Shin-ichi Matsuura (Central Research Institute of Electric Power Industry), Kei Hanaoka (To

キーワード: 送電用鉄塔，鋼管，局部座屈，実規模耐力試験，非線形有限要素解析　　transmission tower，steel pipe，local buckling，full-scale ultimate strength test，nonlinear finite element analysis

要約(英語): Transmission towers have been considered to be designed with enough wind-resistance performance, however, it is necessary to re-examine the current estimation methods from the point of load carrying capacity to improve the structural integrity. Steel pipes for main post members of transmission towers have radius-to-thickness ratio of 10-25 and belong to relatively thick cylinders. The purpose of this paper is to investigate the rare local buckling occurred in the main post pipe during the full-scale ultimate strength test, and to clarify the developmental mechanism analitically combining axial force, bending and torsional moments and shearing force in addition to welding residual stress effect. Furthermore, the buckling strength reduction is discussed comparing the case of combined forces with the case of single axial force.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.138 No.7 （2018）

本誌掲載ページ: 636-645 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/138/7/138_636/_article/-char/ja/