<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This article is devoted to experimental researches of the reinforced concrete beams strengthened by a RC jacketing under load. The program of experimental researches of reinforced concrete beams was envisaged to test four series with a total number of 16 beams 2,100 mm long, of which 14 reinforced beams were additionally pre-loaded. In all experimental samples the longitudinal working reinforcement were steel bars of 2 ∅14 mm А500С. The beams were reinforced by jacketing with the use of two unstressed reinforcement rods of 2 ∅10 A500C mm. To simulate the real life conditions, the loading levels of 30%, 50%, 70% and 90% of the non-strengthened beam bearing capacity were maintained during jacketing. The strengthening effect decreased from 92 to 76% depending on the actual load level (30–90% of the load-bearing capacity of non-strengthened beams). The results of the study could be taken into account in designing reinforced concrete beams strengthened by a RC jacketing under previous loading.</p></abstract>

This article is devoted to experimental researches of the reinforced concrete beams strengthened by a RC jacketing under load. The program of experimental researches of reinforced concrete beams was envisaged to test four series with a total number of 16 beams 2,100 mm long, of which 14 reinforced beams were additionally pre-loaded. In all experimental samples the longitudinal working reinforcement were steel bars of 2 ∅14 mm А500С. The beams were reinforced by jacketing with the use of two unstressed reinforcement rods of 2 ∅10 A500C mm. To simulate the real life conditions, the loading levels of 30%, 50%, 70% and 90% of the non-strengthened beam bearing capacity were maintained during jacketing. The strengthening effect decreased from 92 to 76% depending on the actual load level (30–90% of the load-bearing capacity of non-strengthened beams). The results of the study could be taken into account in designing reinforced concrete beams strengthened by a RC jacketing under previous loading.

RC Beams Strengthened By RC Jacketing Under Load

Acta Scientiarum Polonorum Architectura

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

{"article-title":"RC Beams Strengthened By RC Jacketing Under Load"}

This article is devoted to experimental researches of the reinforced concrete beams strengthened by a RC jacketing under load. The program of experimental...

RC Beams Strengthened By RC Jacketing Under Load

Published Online: Apr 30, 2021

Page range: 25 - 30

Received: Dec 21, 2020

Accepted: Jan 18, 2021

DOI: https://doi.org/10.22630/aspa.2021.20.1.3

Keywords
RC beams, RC jacket, loading, bearing-capacity, strengthening, bending

© 2021 Zinoviy Blikharskyy, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

RC Beams Strengthened By RC Jacketing Under Load

Published Online: Apr 30, 2021

Page range: 25 - 30

Received: Dec 21, 2020

Accepted: Jan 18, 2021

DOI: https://doi.org/10.22630/aspa.2021.20.1.3

KeywordsRC beams, RC jacket, loading, bearing-capacity, strengthening, bending

© 2021 Zinoviy Blikharskyy, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords
RC beams, RC jacket, loading, bearing-capacity, strengthening, bending