Journal of Guangdong University of Technology ›› 2007, Vol. 24 ›› Issue (1): 61-65.

• Comprehensive Studies • Previous Articles     Next Articles

Analysis of Multiple Cracking of Concrete Bridge Overlays

  

  1. (1.College of Architecture and Civil Engineering;2.College of Traffic and Communications,South China University of Technology,Guangzhou 510640,China)
  • Online:2007-02-01 Published:2007-02-01

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Abstract: Using the analytical methods of composite mechanics for reference,a layering shear-lag model is established for the system composed of bridge deck ply and overlay.The multiple cracking problem of concrete bridge overlays for concrete highway bridges under minus moment is studied.Then the crack spacing or density of both conventional and steel fiber-reinforced concrete bridge overlays has been calculated.The results obtained are in a relatively good agreement with the failure situation for an eng...

Key words: concrete； steel fiber-reinforced concrete； bridge overlay； multiple cracking； crack density； shear-lag analysis；

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