Flexural Strengthening of Reinforced Concrete Beams

A special issue of CivilEng (ISSN 2673-4109).

Deadline for manuscript submissions: closed (25 March 2022) | Viewed by 6035

Special Issue Editors


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Guest Editor
Department of Civil Engineering, Cho Sun University, Gwangju, 61452, Korea
Interests: concrete; strengthening; fiber reinforced polymer (FRP); near surface mounted; external bonding; finite element analysis; carbon nano material
Department of Civil Engineering, University of Vermont, Burlington, VT 05405, USA
Interests: civil infrastructure materials; art structure conservation; experimental mechanics

Special Issue Information

Dear Colleagues,

Recently, advanced construction materials have been widely applied to concrete structures due to the flexural strengthening of reinforced concrete. Advanced construction materials have been used for the strengthening of concrete structures in various methods. Various methods have also been used for the flexural strengthening of reinforced concrete and prestressed concrete structures (for example, external prestressing method, external bonding fiber-reinforced polymer or steel sheet method, near surface mounted FRP).

In this regard, this Special Issue invites original experimental and theoretical research articles on reinforced concrete beam to contribute to our understanding of their accomplishment in more detail.

The goal of this Special Issue is to disseminate original research and review studies that address (experimental, theoretical) advances, trends, challenges, and future perspectives regarding the development, characterization, and application of strengthening method to concrete structures.

The topics proposed for this Special Issue include but are not limited to the following:

  • Flexural performance of reinforced concrete beams;
  • Strengthening of concrete structures using various methods;
  • Effect of strengthening method for reinforced concrete beams;
  • Numerical modeling of reinforced concrete beams;
  • Failure mechanism of strengthened concrete structures;
  • Advanced material application;
  • Innovative applications for the construction industry.

I hope you will contribute your high-quality research, and I look forward to reading your valuable results.

Dr. Heeyoung Lee
Dr. Ting Tan
Guest Editors

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Keywords

  • flexural performance of reinforced concrete beams
  • strengthening of concrete structures using various meth-ods
  • effect of strengthening method for reinforced concrete beams
  • numerical modeling of reinforced concrete beams
  • failure mechanism of strengthened concrete structures
  • advanced material application
  • innovative ap-plications for the construction industry

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Published Papers (1 paper)

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Research

27 pages, 12504 KiB  
Article
Strengthening of Reinforced Concrete Structures with Carbon Reinforced Concrete—Possibilities and Challenges
by Juliane Wagner, Carolin Würgau, Alexander Schumann, Elisabeth Schütze, Daniel Ehlig, Lutz Nietner and Manfred Curbach
CivilEng 2022, 3(2), 400-426; https://doi.org/10.3390/civileng3020024 - 13 May 2022
Cited by 6 | Viewed by 5390
Abstract
The strengthening of existing reinforced concrete structures (RC) with carbon reinforced concrete (CRC) has a high potential to save resources and to increase the lifespan of the whole strengthened structure immensely. However, when strengthening structures with CRC, in some cases, failure due to [...] Read more.
The strengthening of existing reinforced concrete structures (RC) with carbon reinforced concrete (CRC) has a high potential to save resources and to increase the lifespan of the whole strengthened structure immensely. However, when strengthening structures with CRC, in some cases, failure due to concrete cover separation is detected, leading to the fact that the potential of the carbon reinforcement cannot be exploited. The prediction and prevention of this type of failure is the subject of current research. In this paper, a strut-and-tie-model is presented for calculating a critical tensile force leading to failure due to concrete cover separation. Additionally, possible methods to avoid that kind of failure are suggested. One of these is doweling the ends of the strengthening layer. This paper presents the first experiments to test this method, which show that doweling the strengthening layer leads to much higher failure loads compared to a structure without doweling. However, further investigations have to be examined to verify these first results. Full article
(This article belongs to the Special Issue Flexural Strengthening of Reinforced Concrete Beams)
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