Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第I部門

座屈・耐荷力(板・その他)

Wed. Sep 4, 2019 10:25 AM - 11:55 AM I-1 (幸町北3号館 311講義室)

座長:前田 和裕(株式会社オリエンタルコンサルタンツ 関東支社構造部)

[I-182] Circumferential bending moment and stress estimation of penstocks on saddle support

*中村 秀治1、日比野 悦久2 (1. 東電設計株式会社、2. 東京発電)

Keywords:penstock, saddle support, circumferential moment, nonlinear FEM analysis

The design formula of stress distribution of penstocks around the saddle support depends on research results of the 1940's to the 1960's. It is considered necessary to check the safety of this part with full use of recent analysis techniques. In this paper, parameter studies are conducted under the actual condition using nonlinear FEM analysis, and numerical values of the evaluation formula are reviewed and the points to be noted in maintenance are discussed.

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