Post-damage recovery of substandard RC columns by CFRPs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F24%3A39922578" target="_blank" >RIV/00216275:25510/24:39922578 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.engstruct.2024.117806" target="_blank" >https://doi.org/10.1016/j.engstruct.2024.117806</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.engstruct.2024.117806" target="_blank" >10.1016/j.engstruct.2024.117806</a>
Alternative languages
Result language
angličtina
Original language name
Post-damage recovery of substandard RC columns by CFRPs
Original language description
Cyclic response of substandard reinforced concrete (RC) columns and structural repair of pre -damaged columns by carbon -fiber -reinforced polymers (CFRPs) were investigated through combination of experimental and advanced numerical modeling methods. The specimens, representing typical RC columns in substandard buildings, were constructed from low -strength concrete, plain round bars, and nonconforming reinforcement details. The key parameters under investigation included the lap -splice, hook detail in the longitudinal reinforcement, and axial load ratio. First, the RC columns were subjected to cyclic loading until the attainment of their heavy damage state. The failure mode was dominated by the flexural response alongside significant reinforcement slip and axial damage, involving concrete crushing and reinforcement buckling. Subsequently, the severe cracks and concrete damage were repaired by the externally wrapped CFRP sheets. The former loadcarrying capacities of the repaired RC columns were recovered. The damage formation in the concrete and reinforcement was transferred to CFRP sheets. The final failure mode was characterized by local deformations in the CFRP, with minimal damage observed in the concrete and reinforcement bars. Furthermore, the numerical solution effectively reproduced the nonlinear behavior of the as -built specimens. The crack patterns and capacities observed in the numerical solutions align with the responses observed in the experimental tests.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Engineering Structures
ISSN
0141-0296
e-ISSN
1873-7323
Volume of the periodical
306
Issue of the periodical within the volume
May 2024
Country of publishing house
GB - UNITED KINGDOM
Number of pages
21
Pages from-to
1-21
UT code for WoS article
001222307800001
EID of the result in the Scopus database
2-s2.0-85187235839