リニューアル (5)

[VI-572] A proposal of a steel deck structure for RC deck replace, leaving original decks above girder flanges.

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

Keywords:deck , replace, steel deck, corrosion resistance, fatigue free

Conventional RC deck replacing methods need very long consruction periods due to difficulty of replacing concrete above girder flanges. As many shear connecters on the flanges make the work very hard one. Thus, new RC deck replacing method is proposed. The new steel deck structure can be placed over remaining concrete blocks above girder flange. This new method can reduce much of construction time and does not require reinforcement to original girders. That means no weight increase and there is no need of pier and foundation reinforcement. This contribute to large cost reductions.