Shear Response of Prestressed Thin-Webbed Continuous Girders
作者: Michael P. Collins Liping Xie Boyan I. Mihaylov Evan C. Bentz
刊名: Structural Journal, 2016, Vol.113 (3)
来源数据库: American Concrete Institute
关键词: axial forceshear strengththin-webbed girderweb shear cracking
原始语种摘要: While different design codes provide similar guidance for the flexural design of prestressed thin-webbed continuous girders, the shear design provisions differ greatly. This paper investigates these discrepancies with the help of 11 experiments and a number of analytical studies. Together, these provide the basis for recommendations for engineers conducting the shear design for new girders or evaluating the shear capacity of existing girders. It is shown that the traditional ACI approach of taking Vc as the smaller of Vci (flexural-shear cracking load) and Vcw (web-shear cracking load) can significantly overestimate the shear strength of such girders, particularly if they are highly prestressed and contain relatively small quantities of shear reinforcement. The other codes evaluated...
全文获取路径: ACI  (合作)

  • provide 规定
  • design 设计
  • members 
  • shear 切变
  • guidance 制导
  • these 这些的
  • improved 改进
  • number 号码
  • provisions 粮食
  • prestressed 预受力的