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Estimation of sea salt adhesion to each structural member of a bridge by combining the numerical experiments on different spatial scales of predicting sea salt transport

Research Project

Project/Area Number 15K06202
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionMatsue National College of Technology

Principal Investigator

HIROSE NOZOMU  松江工業高等専門学校, 環境・建設工学科, 准教授 (40396768)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords維持管理 / 大気腐食環境 / 数値シミュレーション / WRF-Chem / OpenFOAM / 付着塩分量 / 海塩粒子濃度 / 大気中の海塩粒子濃度 / 鋼材の大気腐食 / 粒径分布
Outline of Final Research Achievements

This study aims at developing system estimating the amount of sea salt adhesion to each structural member of a bridge by combining numerical experiments of sea salt concentration in the atmosphere in the regional scale and a steady flow of wind around the bridge by computational fluid dynamics technique.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で得られた成果は,広域スケール(空間解像度:5㎞程度)での海塩粒子の濃度予測から構造物スケール(空間解像度:数m程度)の橋梁桁内の付着塩分量を推定できるため,日本各地の橋梁に十分に適用可能であるため,鋼橋の維持管理に貢献することができる.具体的には,大気腐食による鋼橋の補修箇所の事前予測が可能となるため,点検業務の効率化に資するだけでなく,長期的な視点での鋼橋の維持管理に大きく寄与することができる研究成果である.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (18 results)

All 2018 2017 2016 2015

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] 中山間地域で27年間曝露された耐候性鋼試験片の腐食状況について2017

    • Author(s)
      武邊勝道,大屋誠,広瀬望,福島直人
    • Journal Title

      材料と環境

      Volume: 66 Pages: 395-400

    • NAID

      130007384610

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 山陰地方における大気中の塩分濃度計測に基づく鋼材への塩分付着率の推定2015

    • Author(s)
      坪倉佑太,広瀬望,武邊勝道,大屋誠
    • Journal Title

      構造工学論文集

      Volume: Vol.62A Pages: 549-558

    • NAID

      130005607898

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] ワッペン式暴露試験による耐候性鋼橋梁桁内の腐食環境評価2015

    • Author(s)
      大屋誠,武邊勝道,広瀬望,古川正志,大野滉貴,長谷川弘興
    • Journal Title

      材料と環境

      Volume: Vol.64 Pages: 315-319

    • NAID

      130005120138

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] 鋼橋梁の腐食減耗量とLCC算定方法の提案2015

    • Author(s)
      石故有生也,柴田俊文,大屋誠,武邊勝道,広瀬望
    • Journal Title

      JCOSSAR2015論文集

      Volume: OS11

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] WRF-Chem simulations of the atmospheric sea salt concentration in Japan2018

    • Author(s)
      N. Hirose, M. Takebe, and M. Ohya
    • Organizer
      2018 American Geophysical Union (AGU) Fall Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationship between land surface emissivity and land hydrological variables2018

    • Author(s)
      N. Hirose, K. Taniguchi, and I. Kaihotsu
    • Organizer
      Asian Conference on Remote Sensing 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationship between land surface emissivity and land hydrological variables2017

    • Author(s)
      N.Hirose,K.Taniguchi and I. Kaihotsu
    • Organizer
      International Symposium on Remote Sensing 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 野外観測に基づく大気中の塩分濃度と付着塩分量との関係2017

    • Author(s)
      広瀬望,武邊勝道,大屋誠
    • Organizer
      材料と環境2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 観測と数値モデルを組み合わせた腐食環境予測の精度検証2017

    • Author(s)
      広瀬望,坪倉佑太,武邊勝道
    • Organizer
      土木学会第72回年次学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] モンゴル高原における陸面放射率と地表面水文量との関係2017

    • Author(s)
      広瀬望,谷口健司,開發一郎
    • Organizer
      日本リモートセンシング学会第63回学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Estimation of Airborne Salt Level for Bridge Construction2017

    • Author(s)
      M. Ohya, M. Takebe, N. Hirose, S. Ajiki, T. Aso,
    • Organizer
      Ninth International Structural Engineering and Construction Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 異なる空間スケールに着目した海塩粒子輸送予測システム開発のための基礎的検討2016

    • Author(s)
      広瀬望,坪倉佑太,武邊勝道,大屋誠,高見航右
    • Organizer
      土木学会第71回年次学術講演会
    • Place of Presentation
      東北大学
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report
  • [Presentation] 大気中の塩分濃度計測に基づく鋼材への塩分付着率の推定2016

    • Author(s)
      坪倉佑太,広瀬望,武邊勝道,大屋誠
    • Organizer
      土木学会第71回年次学術講演会
    • Place of Presentation
      東北大学
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report
  • [Presentation] 山陰地方における大気中の塩分濃度計測に基づく鋼材への塩分付着率の推定2016

    • Author(s)
      坪倉佑太,広瀬望,武邊勝道,大屋誠,
    • Organizer
      第62回構造工学ジンポジウム
    • Place of Presentation
      東京工業大学
    • Year and Date
      2016-04-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 腐食環境把握を目的とした鋼材表面への塩分付着の観測的検討2016

    • Author(s)
      広瀬望,坪倉佑太,武邊勝道,大屋誠,高見航右,
    • Organizer
      腐食防食協会,材料と環境2017
    • Place of Presentation
      つくば国際会議場
    • Related Report
      2016 Research-status Report
  • [Presentation] 鋼橋梁の適切な維持管理のための腐食環境評価手法の高度化2015

    • Author(s)
      広瀬望
    • Organizer
      平成27年度中国地方建設技術開発交流会
    • Place of Presentation
      くにびきメッセ
    • Year and Date
      2015-10-21
    • Related Report
      2015 Research-status Report
  • [Presentation] 観測に基づく海塩粒子の輸送メカニズムの検討2015

    • Author(s)
      広瀬望,武邊勝道,大屋誠,坪倉佑太,大野滉貴
    • Organizer
      平成27年度土木学会全国大会第70回年次学術講演会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-09-16
    • Related Report
      2015 Research-status Report
  • [Presentation] フィルターパック法による大気中の海塩粒子計測に基づく大気腐食環境の検討2015

    • Author(s)
      広瀬望, 坪倉佑太, 武邊勝道, 大屋誠,余村渉一
    • Organizer
      材料と環境2015
    • Place of Presentation
      東京電機大学
    • Year and Date
      2015-05-18
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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