한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)

한국전산구조공학회 (Computational Structural Engineering Institute of Korea)
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곡선박스거더교의 뒤틀림효과에 대한 연구

A Study of the Distortional Effect on Curved Box Girder Bridge

  • Nguyen, Van Ban (Dept. of Civil and Environmental Engineering, Korea Univ.) ;
  • Han, Taek-Hee (Dept. of Civil and Environmental Engineering, Korea Univ.) ;
  • Kim, Sung-Nam (Dept. of Civil and Environmental Engineering, Korea Univ.) ;
  • Kang, Young-Jong (Dept. of Civil and Environmental Engineering, Korea Univ.)
  • 발행 : 2007.04.12
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초록

Although just developed in recent years, curved box girder has widely used in modern highway system due to their load resistance capacity as well as aesthetic considerations. According to recent literature reviews on curved box girder designs, distortional load was not considered as much as it deserves to be. In practice, the effect of distributional force is very small in straight bridge systems but yet unknown how it is in curved bridge systems. For the reason, this paper will show up an extensive parametric study on distortional behavior of curved box girder with trapezoidal section. Based on Dabrowski formulas, using finite element method, various bridges were investigated. In this study, following parameters will be included: span length, curvature radius, section height, section width, and internal section angle (web slope). From the obtained results, some initial geometric parameters are proposed for curved box girder bridges.

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