Reduction of amount of airborne sea salt adhesion onto bridge girders by aerodynamic countermeasures

• Shigeta Masatoshi

  京都大学　大学院工学研究科社会基盤工学専攻

• Yagi Tomomi

  京都大学　大学院工学研究科社会基盤工学専攻

• Kyohei Noguchi,

  京都大学　大学院工学研究科社会基盤工学専攻 日本学術振興会

• Mbithi Michael Kinama

  京都大学　大学院工学研究科社会基盤工学専攻

• Sugii Kenichi

  阪神高速技術株式会社

• Shirato Hiromichi

  京都大学　大学院工学研究科社会基盤工学専攻

Bibliographic Information

Other Title

• 空気力学的対策による橋梁各部位への飛来海塩粒子付着量の低減
• クウキ リキガクテキ タイサク ニ ヨル キョウリョウ カク ブイ エ ノ ヒライカイエン リュウシ フチャクリョウ ノ テイゲン

Abstract

One of the reasons of corrosion of bridges is airborne sea salt. The purpose of this study is to reduce the amount of sea salt adhesion by applying aerodynamic countermeasures such as noise barriers, horizontal plates and vertical plates to change the flow pattern around a bridge. The study bridge is composed of 8 I-shaped steel girders, which is the most typical shape in urban expres sways in Japan. The steady flow of wind around the bridge was analyzed by computational fluid dynamics (CFD) while changing the combination of additional devices. The results showed that simple additional devices can reduce the amount of airborne sea salt adhesion.

Journal

• Journal of Structural Engineering, A

  Journal of Structural Engineering, A 63A (0), 438-449, 2017

  Japan Society of Civil Engineers

Keywords

• corrosion
• airborne sea salt
• aerodynamic countermeasures
• maintenance and management

Details

• CRID: 1390564237991133824
• NII Article ID: 130007395173
• NII Book ID: AA12210243
• ISSN: 18816614
• ISSN: 1881820X
• DOI: 10.11532/structcivil.63a.438
• NDL BIB ID: 028108458
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028108458
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed