Finite element analysis on induced stresses in horizontally curved box girder flange

B. H. Choi, Young Jong Kang, C. H. Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The stress distribution in a horizontally curved box girder flange is quite complicated due to the inherent coupling of vertical bending and torsion plus stresses induced box distortion. Uncontrolled development of the distortional normal stress has a significant detrimental effect on the strength of a box girder. Through studies have been conducted to examine the longitudinal stresses on the bottom flange of a box girder with a horizontally curved geometry, the past studies do not provide sufficiently detailed design speculations to guide a simple determination of cross-frame design parameters. Thus, numerical analysis studies were conducted by using the finite element method to examine the effect of the cross-frames on the induced normal stresses in a tub girder. A typical curved box girder bridge currently constructed in the U.S was simulated and 3-dimensional finite element analyses were performed. Through a series of hypothetical bridge analyses, variation of the induced non-uniform stress along with corresponding diaphragm spacing is numerically examined and an optimum design for the cross-frames is proposed.

Original languageEnglish
Title of host publicationProceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
PublisherHokkaido University collection of Scholarly Academic Papers, HUSCAP
Publication statusPublished - 2013 Jan 1
Event13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 - Sapporo, Japan
Duration: 2013 Sep 112013 Sep 13

Other

Other13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
CountryJapan
CitySapporo
Period13/9/1113/9/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Choi, B. H., Kang, Y. J., & Yoo, C. H. (2013). Finite element analysis on induced stresses in horizontally curved box girder flange. In Proceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 Hokkaido University collection of Scholarly Academic Papers, HUSCAP.