Title:
Reinforcement Detailing in Concrete Frame Corners
Author(s):
Morgan Johansson
Publication:
Structural Journal
Volume:
98
Issue:
1
Appears on pages(s):
105-115
Keywords:
moment; reinforced concrete; spalling
DOI:
10.14359/10152
Date:
1/1/2001
Abstract:
Results of an experimental study and a literature survey of the reinforcement detailing in concrete frame corners subjected to closing or opening moment are presented in this study. A total of 11 full-scale specimens, eight for closing moment and three for opening moment, were tested to evaluate whether a new reinforcement detailing using reinforcement loops lap spliced within the corner is appropriate to use in Swedish civil defense shelters. In combination with nonlinear finite element analyses (not presented herein), it was found that the new detailing, even though resulting in a higher risk of side concrete spalling within the corner, was sufficient to be used. Further, it is shown that the use of inclined bars, commonly accepted in opening frame corners, may not be as effective as previously believed.