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Strengthened clay brick and lightweight aggregate concrete block walls tested under eccentric axial loading – a feasibility study on different strengthening techniques

Niklewski, Jonas LU and Molnár, Miklós LU (2020) p.987-993
Abstract
Strengthening of masonry walls is a means to improve the energy performance of modern external masonry walls without further increasing their total thickness. The present paper evaluates the feasibility - here refer-ring to ease-of-application and structural performance - of several techniques aimed at strengthening mason-ry walls subjected to eccentric axial loading. Four full scale walls made of solid clay bricks and lightweight aggregate concrete blocks were strengthened using externally bonded reinforcement of conventional steel mesh, high-strength steel wire, masonry reinforcement and mechanically fastened strips of steel sheet. Each of the studied strengthening techniques is feasible from a structural perspective. Mechanically... (More)
Strengthening of masonry walls is a means to improve the energy performance of modern external masonry walls without further increasing their total thickness. The present paper evaluates the feasibility - here refer-ring to ease-of-application and structural performance - of several techniques aimed at strengthening mason-ry walls subjected to eccentric axial loading. Four full scale walls made of solid clay bricks and lightweight aggregate concrete blocks were strengthened using externally bonded reinforcement of conventional steel mesh, high-strength steel wire, masonry reinforcement and mechanically fastened strips of steel sheet. Each of the studied strengthening techniques is feasible from a structural perspective. Mechanically fastened steel strips require the least work, and no render is required since the steel is not exposed to fire. Steel mesh can be applied directly on the wall surface, which lowers the thickness of the render layer. Continued research with more replicates will confirm the presented conclusions. (Less)
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author
and
organization
alternative title
Undersökning av ytförstärkta murade tegel- och lättklinkerväggars bärförmåga
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Masonry, strengthening, externally bonded reinforcement, clay brick, light weight concrete, eccentric axial loading
host publication
Brick and Block Masonry - From Historical to Sustainable Masonry : Proceedings of the 17th International Brick and Block Masonry Conference - Proceedings of the 17th International Brick and Block Masonry Conference
editor
Kubica, Jan ; Kwiecień, Arkadiusz and Bednarz, Łukasz
pages
7 pages
publisher
CRC Press/Balkema
ISBN
978-1-003-09850-8
978-0-367-56586-2
DOI
10.1201/9781003098508
project
Energy efficient buildings by use of reinforced masonry walls
language
English
LU publication?
yes
id
c7abc7a0-a19d-4ab0-9cb0-2a468f68e4d5
date added to LUP
2020-12-16 19:45:37
date last changed
2021-11-25 15:29:07
@inproceedings{c7abc7a0-a19d-4ab0-9cb0-2a468f68e4d5,
  abstract     = {{Strengthening of masonry walls is a means to improve the energy performance of modern external masonry walls without further increasing their total thickness. The present paper evaluates the feasibility - here refer-ring to ease-of-application and structural performance - of several techniques aimed at strengthening mason-ry walls subjected to eccentric axial loading. Four full scale walls made of solid clay bricks and lightweight aggregate concrete blocks were strengthened using externally bonded reinforcement of conventional steel mesh, high-strength steel wire, masonry reinforcement and mechanically fastened strips of steel sheet. Each of the studied strengthening techniques is feasible from a structural perspective. Mechanically fastened steel strips require the least work, and no render is required since the steel is not exposed to fire. Steel mesh can be applied directly on the wall surface, which lowers the thickness of the render layer. Continued research with more replicates will confirm the presented conclusions.}},
  author       = {{Niklewski, Jonas and Molnár, Miklós}},
  booktitle    = {{Brick and Block Masonry - From Historical to Sustainable Masonry : Proceedings of the 17th International Brick and Block Masonry Conference}},
  editor       = {{Kubica, Jan and Kwiecień, Arkadiusz and Bednarz, Łukasz}},
  isbn         = {{978-1-003-09850-8}},
  keywords     = {{Masonry; strengthening; externally bonded reinforcement; clay brick; light weight concrete; eccentric axial loading}},
  language     = {{eng}},
  month        = {{07}},
  pages        = {{987--993}},
  publisher    = {{CRC Press/Balkema}},
  title        = {{Strengthened clay brick and lightweight aggregate concrete block walls tested under eccentric axial loading – a feasibility study on different strengthening techniques}},
  url          = {{http://dx.doi.org/10.1201/9781003098508}},
  doi          = {{10.1201/9781003098508}},
  year         = {{2020}},
}