Strengthening corbels using post‐installed threaded rods

The paper presents the results of experimental research into the use of post‐installed threaded rods as additional reinforcement. An increase in load‐carrying capacity of up to 64% was obtained for strengthened corbels compared with unstrengthened corbels (reference corbels). Calculations were perfo...

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Bibliographic Details
Published in:Structural concrete : journal of the FIB 2017-04, Vol.18 (2), p.303-315
Main Authors: Urban, Tadeusz, Krawczyk, Łukasz
Format: Article
Language:English
Subjects:
corbels
Documents
Failure
Mathematical models
post‐installed reinforcement
reinforced concrete
Reinforcement
Rods
Strengthening
strut‐and‐tie method
Threaded
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Summary:The paper presents the results of experimental research into the use of post‐installed threaded rods as additional reinforcement. An increase in load‐carrying capacity of up to 64% was obtained for strengthened corbels compared with unstrengthened corbels (reference corbels). Calculations were performed of the load‐carrying capacity of corbels using a model developed on the basis of the literature and the obtained results were compared with results calculated according to the EN‐1992‐1‐1. Strain diagrams for primary reinforcement, stirrups, and the compressed surface of concrete are presented, alongside with a description of the development of cracking and photographs of the corbels after failure. In the second section, publications about the calculation of the load‐carrying capacity of corbels and on different reinforcement methods are quoted.
ISSN:1464-4177
1751-7648
DOI:10.1002/suco.201500215