リニューアル (5)

[VI-574] Stress Analysis of a Steel Deck Structure for RC Deck Replacements Leaving Original Decks on Girder Flanges

*横関 耕一¹、冨永 知徳¹、利根川 太郎²、中村 俊一³ (1. 日本製鉄株式会社、2. （株）横河ＮＳエンジニアリング、3. 東海大学)

Keywords:Deck, Replacement, Steel deck, Fatigue free, Finite element analysis

Concrete removal works from top surfaces of girder flanges delay the construction periods of RC deck replacements and are sources of the environmental problems such as vibrations and noises. To make the construction speedy and clean, authors are proposing the method to replace RC decks with steel decks with leaving original deck concretes on the girder flanges. This paper conducted finite element analysis of the steel deck and the existing girders and confirmed that working stresses on the structures were allowable.