Steel Strap으로 횡보강된 콘크리트 바닥판의 매개변수해석을 통한 설계식 제안

초록

A deterioration of typical reinforced concrete (RC) bridge deck is due to the use of calcium chloride, cracks and waterpenetration inside of the deck slab with steel reinforcement. In order to eliminate the defects of RC decks in terms of material,therefore, the steel-strapped deck system is studied and developed by maximizing the arching effect while the girders are restrainedusing straps in lateral direction to the bridge. This parametric study was performed to analyze the structural characteristics ofsteel-strapped deck, and to identify the factors of the thickness, span length and lateral restraint stiffness of deck slab consideringthe concrete non-linearity. Finally, a design equation, which is adequate to South Korea, is suggested.

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