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[I-108] Analytic examination of the patch repair for the corrosion damage of plate girder

〇Takayuki Aoki¹, Shuichi Hirano¹, Shinya Kanda¹, Fukaya Takahisa¹, Ymaguchi Takashi², Uchida Daisuke³, Masakado Tetsuo⁴, Kenichi Komiya⁴ (1.Metropolitan Expressway company, 2.Osaka City Graduate school, 3.Hosei University, 4.Japan Engineering Corporation)

Keywords:corrosion, edge distance, required number of bolts, repair, stiffening plate

In the Metropolitan expressway, the damage of the section loss caused by the corrosion occurs to an edge and the figure bottom flange of the figure under the influence of a leak of water and the rain capital from the extension device part of the steel figure, and patch repair by the bolted connection for the purpose of restoring section performance is performed. However, with many places to be groundless, and to depend on the judgment of the engineer of the effect that the repair structure mentioned above is quantitative.

Therefore I examined the most suitable repair method about bolt Komei at the time of the quantitative effect and construction of the repair structure using FEM analysis in this report