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SONG Guo-hua, HUO Da, LUO Ling, WANG Dong-wei. Influences of Prestressing Degree on Curved Box-girder Bridges by Two-step One-parameter Method[J]. Journal of Beijing University of Technology, 2012, 38(10): 1522-1526,1547.
Citation: SONG Guo-hua, HUO Da, LUO Ling, WANG Dong-wei. Influences of Prestressing Degree on Curved Box-girder Bridges by Two-step One-parameter Method[J]. Journal of Beijing University of Technology, 2012, 38(10): 1522-1526,1547.
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Influences of Prestressing Degree on Curved Box-girder Bridges by Two-step One-parameter Method

  • 1 School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, China;

  • 2 College of Architectural Engineering, Beijing University of Technology, Beijing 100124, China;

  • 3 Beijng Municipal Engineering Design and Research Institute, Beijing 100045, China

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  • Received Date: December 29, 2009
  • Available Online: December 02, 2022
    Graphical Abstract
    • Abstract
  • In order to study the influences of prestressing degree on curved box-girder bridges,180 two-span curved box-girder bridge models were built by taking bridge length,central angle and prestressing degree as parameters.Data-fitting was made with two-step one-parameter method,resulting in experimental formulas of stresses and unit displacements in control sections under limit states,so variation trends and degree varying with prestressing degree were studied.Formulas of prestressing degree in section were proposed;two indexes were advised to reflect the variation trend and degree of structural reactions varying with prestressing degree.
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    • References (9)
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