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Wind and Structures
  Volume 7, Number 1, January 2004 , pages 29-40

An estimation of static aerodynamic forces of box girders using computational fluid dynamics
Shigeru Watanabe, Hiroo Inoue and Koichiro Fumotorn

    This study has focused on aerodynamics for a wind-resistance design about the single and tandem box girder sections to realize a super-long span bridge in the near future. Three-dimensional static analysis of flows around the fundamental single and tandem box girder sections with fairing is carried out by means of the IBTD/FS finite element technique with LES turbulence model. As the results of the analysis, computations have verified aerodynamic characteristics of both sections by the histories of aerodynamic forces, the separation and reattachment flow patterns and the surface pressure distributions. The relationship between the section shapes and the aerodynamic characteristics is also investigated in both sections. And the mechanism about the generation of fluctuating aerodynamic forces is discussed.
Key Words
    CFD; LES; FEM; box girder section; fairing; aerodynamics.
Shigeru Watanabe; Research & Development Headquarters, Mitsui Engineering & Shipbuilding Co., Ltd., Okayama, JapanrnHiroo Inoue; Structure & Logistic Systems Headquarters, Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, JapanrnKoichiro Fumoto; Public Works Research Institute Independent Administrative Institution, Ibaraki, Japan

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