Steel and Composite Structures

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Stress analysis of a new steel-concrete composite I-girder

  • Wang, Yamin (School of Civil Engineering and Architecture, Southwest Petroleum University) ;
  • Shao, Yongbo (School of Civil Engineering and Architecture, Southwest Petroleum University)
  • Received : 2017.07.01
  • Accepted : 2018.04.17
  • Published : 2018.07.10
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Abstract

A new I-girder consisted of top concrete-filled tubular flange and corrugated web has been proved to have high resistance to both global buckling of the entire girder and local buckling of the web. This study carries out theoretical analysis and experimental tests for this new I-girder to investigate the stress distribution in the flanges and in the corrugated web. Based on some reasonable assumptions, theoretical equations for calculating the normal stress in the flanges and the shear stress in the corrugated web are presented. To verify the accuracy of the presented equations, experimental tests on two specimens were carried out, and the experimental results of stress distribution were used to assess the theoretical prediction. Comparison between the two results indicates that the presented theoretical equations have enough accuracy for calculating the stress in the new I-girder, and thus they can be used reliably in the design stage.

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References

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