Evaluating Shear Capacity of Concrete Girders with Deficient Shear Reinforcement

  • Author / Creator
    Ormberg, Grant
  • This study assesses the suitability of four sectional shear methods for predicting the shear
    capacity of reinforced concrete members which do not comply with S6-06 Section 14 stirrup
    spacing and area requirements. The results of the evaluations indicate that the sectional shear
    provisions in S6-06, AASHTO LRFD-05 and software Response 2000 appropriately account for
    variations in stirrup spacing and area detailing, and present with good agreement between
    predicted and tested shear capacities for member with deficient shear reinforcement. However,
    shear capacities calculated using ACI 318-08 do not agree well with tested capacities for
    members with less than minimum stirrups. Two modified shear methods are proposed, which
    revise the diagonal crack spacing and concrete contribution area assumed by S6-06. The
    modified shear methods improve predictions of shear capacity relative to predictions calculated
    using S6-06 and eliminate the issue of non-convergent shear capacity predictions which can result
    from evaluation using S6-06.

  • Subjects / Keywords
  • Graduation date
    Fall 2010
  • Type of Item
  • Degree
    Master of Science
  • DOI
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.