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BOBEK, L. KLUSÁČEK, L. SVOBODA, A.
Original Title
Effective strengthening of reinforced concrete corbels using post-tensioning
Type
journal article in Web of Science
Language
English
Original Abstract
This paper focuses on a reinforced concrete corbel strengthening method using post-tensioning cables, or just using the prestressing strands themselves, which are led through additionally drilled cable ducts. The text describes a highly efficient method that has also other advantages besides efficiency, which are: the character of the structure of concrete columns with corbels does not change, the prestressing reinforcement is protected by the concrete both mechanically and against elevated temperatures, and it is easy to apply. Firstly, the paper briefly describes some of the other available methods. However, these methods usually utilize the surface of the concrete, which is often impaired. Additionally, the alternative methods cannot be used or are considered in practice to be insufficiently reliable in specific situations. The paper then describes the design, the actual implementation, and verification of the post-tensioning by measuring the concrete deformation on real columns and full-scale corbels. It also discusses the preliminary design using Strut-and-Tie method Other sections of the text describe the measurements on full-scale corbel specimens and the subsequent numerical analysis performed using advanced methods. The concordance of the results confirms the correctness of the implementation and the design of the described strengthening method.
Keywords
Reinforced concrete corbel; Strengthening; Post-tensioning; Unbonded tendon; Load-bearing capacity; Stress and displacement verification; Advanced modeling
Authors
BOBEK, L.; KLUSÁČEK, L.; SVOBODA, A.
Released
1. 3. 2024
Publisher
Elsevier
ISBN
0141-0296
Periodical
ENGINEERING STRUCTURES
Year of study
305
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
17
Pages count
URL
https://doi.org/10.1016/j.engstruct.2024.117716
Full text in the Digital Library
http://hdl.handle.net/11012/245292
BibTex
@article{BUT188194, author="Lukáš {Bobek} and Ladislav {Klusáček} and Adam {Svoboda}", title="Effective strengthening of reinforced concrete corbels using post-tensioning", journal="ENGINEERING STRUCTURES", year="2024", volume="305", number="1", pages="17", doi="10.1016/j.engstruct.2024.117716", issn="0141-0296", url="https://doi.org/10.1016/j.engstruct.2024.117716" }