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Title :高力ボルト摩擦接合継手における連結板の腐食減肉形状とすべり耐力特性に関する研究
Title alternative :CORROSION BEHAVIOR OF SPLICED PLATE AND SLIP RESISTANCE IN HIGH STRENGTH BOLTED CONNECTIONS
Authors :山下, 修平
下里, 哲弘
田井, 政行
有住, 康則
矢吹, 哲哉
Authors alternative :Yamashita, Shuhei
Shimozato, Tetsuhiro
Tai, Masayuki
Arizumi, Yasunori
Yabuki, Tetsuya
Issue Date :2018
Abstract :高力ボルト摩擦接合継手を適切に維持管理するためには,継手を構成する各部材(高力ボルト,母板,連結板)の腐食状態とすべり耐力の関係を明らかにすることが求められる.本研究では,実橋の環境下で腐食減肉した連結板を用いて,腐食形状の計測と分類,高力ボルト締付け時の接触圧分布及びすべり耐力に関する各種試験を行い,腐食減肉形状がすべり耐力特性へ与える影響について検証した.その結果,腐食減肉が大きい片側連結板の降伏とすべり耐力特性に相関性があることを示し,実腐食減肉形状を有する連結板のすべり耐力の評価法を示した.
For the maintenances of high strength bolted connections in actual steel bridges, it is required to clarify the relationship between corrosion behaviors of individual parts of fastener and slip resistance. This paper presents a study on relationship between corrosion behaviors of spliced plates and slip resistance. In this study, firstly the corrosion behavior is inspected using the corroded spliced plates which were cut off from the steel bridge girder removed. Moreover, the pressure distribution tests under the axial force of a high strength bolt and various tensile tests are performed on those corroded specimens.From the test results, it can be clear that the yield of back side of a bolt hole, i.e., the side subjected to compression force in the bolt hole and slip resistance correlate closely with each other. Moreover, the diagnostics for corroded spliced plate of friction type of high strength bolted connections are proposed.
URL :https://doi.org/10.2208/jscejseee.74.359
Type Local :雑誌掲載論文
ISSN :2185-4653
Publisher :土木学会
URI :http://hdl.handle.net/20.500.12000/48386
Citation :土木学会論文集A1(構造・地震工学) Vol.74 no.3 p.359 -375
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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