既設劣化橋梁の耐荷力性能に及ぼす軸重変動の影響評価と走行荷重特性の解明

Material type: 文書・図像類

Author: 深田, 宰史ほか

Publisher: 金沢大学理工研究域地球社会基盤学系

Publication date: 2019-06-18

Material Format: Digital

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Note (General)：: 本研究では，ASRによる劣化が確認された鋼橋のRC床版を対象として，試験車走行試験を行うとともに，一般車を対象とした走行荷重，床版変位などを長期モニタリングした．その結果，劣化橋梁上を走行する大型車の軸重変動が劣化を助長していることを明らかにした．また，一般車の走行荷重実態と解析結果を比較することに...

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https://kaken.nii.ac.jp/search/?qm=10313686

https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16K06463/

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Material Type: 文書・図像類
Title: 既設劣化橋梁の耐荷力性能に及ぼす軸重変動の影響評価と走行荷重特性の解明
Author/Editor: 深田, 宰史
Fukada, Saiji
Author Heading: 深田, 宰史
Fukada, Saiji
Publication, Distribution, etc.: 金沢大学理工研究域地球社会基盤学系
Publication Date: 2019-06-18
Publication Date (W3CDTF): 2019-06-18
Alternative Title: Effect of wheel load variation on load carrying capacity of existing deteriorated bridge and investigation of moving load characteristics
Periodical title: 平成30(2018)年度科学研究費補助金基盤研究(C) 研究成果報告書 = 2018 Fiscal Year Final Research Report
No. or year of volume/issue: 2016-04-01 - 2019-03-31
Volume: 2016-04-01 - 2019-03-31
Pages: 6p.-
Text Language Code: jpn
Subject Heading: モニタリング
BWIM
床版
剛性評価
耐荷力評価
Target Audience: 一般
Note (General): 本研究では，ASRによる劣化が確認された鋼橋のRC床版を対象として，試験車走行試験を行うとともに，一般車を対象とした走行荷重，床版変位などを長期モニタリングした．その結果，劣化橋梁上を走行する大型車の軸重変動が劣化を助長していることを明らかにした．また，一般車の走行荷重実態と解析結果を比較することにより，現状のRC床版が健全時と比較して著しく剛性が低下していことを明らかにした．
In the mountainous area of the Hokuriku region, bridges are experiencing early deterioration caused by salt damage, alkali-silica reactions (ASR), and frost damage. The reinforced concrete (RC) slab of a road bridge, which has deterioration caused by ASR, was investigated in this study. The vehicle running tests using a heavy test truck were also performed, and the displacements of the RC slab were measured. Long-term monitoring of the responses of the test bridge due to live load based on the bridge weigh-in-motion method was also performed for ordinary vehicles. Then, the stiffness of the RC slab was evaluated by comparing the results obtained from the tests and the numerical analyses. It was found that the stiffness of the slab remarkably decreased as compared with the results when the slab was sound.
研究課題/領域番号:16K06463, 研究期間(年度):2016-04-01 - 2019-03-31
出典：研究課題「既設劣化橋梁の耐荷力性能に及ぼす軸重変動の影響評価と走行荷重特性の解明」課題番号16K06463（KAKEN：科学研究費助成事業データベース（国立情報学研究所））（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-16K06463/16K06463seika/）を加工して作成
DOI: 10.24517/00054891
Access Restrictions: 限定公開
Related Material: https://kaken.nii.ac.jp/search/?qm=10313686
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16K06463/
https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-16K06463/16K06463seika/
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 金沢大学 : 金沢大学学術情報リポジトリKURA