地震観測記録に基づく変電所屋外鉄構の応答性状と解析モデルの評価

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タイトル別名
  • Study on Response Characteristics and Analytical Models in Substation Steel Structures based on Seismic Observation Records
  • ジシン カンソク キロク ニ モトズク ヘンデンショ オクガイテツコウ ノ オウトウ セイジョウ ト カイセキ モデル ノ ヒョウカ

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抄録

This paper presents the fundamental seismic response and analytical idealization in the substation steel structures. To obtain realistic response, the seismic observation was conducted on the steel structures which were under operation. The spectral analysis, as well as the dynamic response analysis, was performed in evaluation of the observed records. It was found that the in-plane response in the two-dimensional frame structures was less affected by the electric wires, but the out-plane response became complicated due to the effect of the electric wires such that the detailed model of the wires was required in the analysis. On the other hand, the correlation between observation and simulation in the three-dimensional frame structure could be improved by increasing the damping ratio without modeling of the wires.

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