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Title |
Design Equation Suggestion through Parametric Study of Laterally Restrained Concrete Decks with Steel Strap
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Keywords |
횡방향 구속 ; 콘크리트 바닥판 ; 매개변수해석 ; 설계식 ; 철근콘크리트 Lateral restraint ; Concrete deck ; Parametric study ; Design equation ; Reinforced concrete |
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Abstract |
A deterioration of typical reinforced concrete (RC) bridge deck is due to the use of calcium chloride, cracks and water penetration 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 restrained using straps in lateral direction to the bridge. This parametric study was performed to analyze the structural characteristics of steel-strapped deck, and to identify the factors of the thickness, span length and lateral restraint stiffness of deck slab considering the concrete non-linearity. Finally, a design equation, which is adequate to South Korea, is suggested.
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