基部が腐食した防護柵支柱に対する健全度評価手法の構築

• 深田 宰史

  金沢大学 理工研究域環境デザイン学系

• 水野 卓哉

  中日本ハイウェイ・エンジニアリング名古屋 株式会社

• 青山 實伸

  中日本ハイウェイ・エンジニアリング名古屋 株式会社

書誌事項

タイトル別名

• Construction of structural integrity assessment method for the guardrail post with the corrosion at the basement
• キブ ガ フショク シタ ボウゴ サク シチュウ ニ タイスル ケンゼンド ヒョウカ シュホウ ノ コウチク

抄録

Chloride due to de-icing salt induced the corrosion of the guardrail post on the highway along the seashore of Hokuriku district. This study proposed the non-destructive method to estimate the structural integrity using the vibration mode obtained by the vibration test. Test guardrail posts which modeled the corrosion were produced. The vibration characteristics of those posts due to the impact and the resonance examination were observed. Also the stiffness and load carrying performance of those posts were investigated using FEM analysis. As the results of the examination and analysis, this study targeted the high-order vibration mode shapes to estimate the corrosion damage of the guardrail post at the basement. Moreover, the structural integrity of those posts was estimated using the relation of the MAC (Modal Assurance Criterion) and the ratio of the bending stiffness.

収録刊行物

• 構造工学論文集 Ａ

  構造工学論文集 Ａ 61A (0), 101-109, 2015

  公益社団法人 土木学会

キーワード

• 防護柵支柱
• 腐食
• 非破壊
• 振動モード

詳細情報

• CRID: 1390282680259928192
• NII論文ID: 130005438991
• NII書誌ID: AA12210243
• ISSN: 18816614
• ISSN: 1881820X
• DOI: 10.11532/structcivil.61a.101
• NDL書誌ID: 026309704
• Web Site: http://hdl.handle.net/2297/42226
• Web Site: http://id.ndl.go.jp/bib/026309704
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026309704
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可