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Title |
Evaluation on Bearing Capacity of End Girder Member with Local Corrosion
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Authors |
안진희(Jin Hee Ahn) ; 이원홍(Won Hong Lee) ; 김인태(In Tae Kim) ; 정영수(Young Soo Jeong) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.5.074 |
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Keywords |
거더단부 ; 지압강도 ; 단면손당 ; 국부부식 ; 보강재 ; 복부판 End girder ; Bearing capacity ; Sectional damage ; Local corrosion ; Stiffener ; Web |
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Abstract |
Localized corrosions damages in their structural sections can be occurred affected by installed environment conditions with high temperature as near the coastline and humidity or their poor maintenance situation. In bearing supports of steel bridges, especially, lower web and vertical stiffener in end girder support can be easily corroded because of relatively higher humidity due to the narrow space in the end of girder and the wetted accumulated sediments affected by rain water or antifreezing admixture leaked from expansion joint. It can be related to change in their structural performance. In this study, thus, bearing strength test specimens were fabricated considering corrosion damage in the web and vertical stiffeners and the change in their bearing strengths were experimentally evaluated. From the test results, localized corrosion damage of structural members in the end girder affected the bearing strength of end girder support, especially, localized corrosion damage of the vertical stiffener relatively highly affected their bearing strengths.
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