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논문 기본 정보

자료유형
학술저널
저자정보
Wen, Xiong (Department of Bridge Engineering, School of Transportation, Southeast University) Ye, Jianshu (Department of Bridge Engineering, School of Transportation, Southeast University) Gai, Xuemei (Department of Bridge Engineering, School of Transportation, Southeast University) Cai, C.S. (Department of Civil and Environmental Engineering, Louisiana State University)
저널정보
테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제48권 제3호
발행연도
2013.1
수록면
395 - 414 (20page)

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The present study fundamentally investigated the mechanical performance of the rib-stiffened super-wide bridge deck with twin box girders in concrete, which is a very popular application to efficiently widen the bridges with normal span. The shear lag effects of the specific cross-sections were firstly studied. The spatial stress distribution and local stiffness of the bridge deck with twin box girders were then investigated under several typical wheel load conditions. Meanwhile, a comparative study for the bridge deck with and without stiffening ribs was also carried out during the investigation; thereby, a design optimization for the stiffening ribs was further suggested. Finally, aiming at the preliminary design, an approximate methodology to manually calculate the bending moments of the rib-stiffened bridge deck was analytically proposed for engineers to quickly assess its performance. This rib-stiffened bridge deck with twin box girders can be widely applied for concrete (especially concrete cable-stayed) bridges with normal span, however, requiring a super-wide bridge width due to the traffic flow.

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