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Experimental study of masonry walls strengthened with externally bonded steel-grid under eccentric axial compressive loading

Molnár, Miklós LU ; Jönsson, Johan LU and Gottsäter, Erik LU (2018) 10th International Masonry Conference p.2006-2016
Abstract
Strengthening of load-bearing masonry walls might often be a solution to extend the life cycle and area of use of existing buildings. In the present work, strengthening of masonry walls by means of externally bonded steel-grid is studied. Full scale clay brick masonry walls were constructed and tested in laboratory under eccentric axial compressive loading. By use of a steel-grid embedded in the render layer on the tension side of the walls, a 30 % increase of the top load was achieved. Further, the use of the externally bonded grid changed the failure mode of the walls from brittle to ductile. The load bearing capacity of the strengthened walls can be determined by section resistance analysis with due consideration given to the effects of... (More)
Strengthening of load-bearing masonry walls might often be a solution to extend the life cycle and area of use of existing buildings. In the present work, strengthening of masonry walls by means of externally bonded steel-grid is studied. Full scale clay brick masonry walls were constructed and tested in laboratory under eccentric axial compressive loading. By use of a steel-grid embedded in the render layer on the tension side of the walls, a 30 % increase of the top load was achieved. Further, the use of the externally bonded grid changed the failure mode of the walls from brittle to ductile. The load bearing capacity of the strengthened walls can be determined by section resistance analysis with due consideration given to the effects of the render shrinkage and second order effects. (Less)
Abstract (Swedish)
Strengthening of load-bearing masonry walls might often be a solution to extend the life cycle and area of use of existing buildings. In the present work, strengthening of masonry walls by means of externally bonded steel-grid is studied. Full scale clay brick masonry walls were constructed and tested in laboratory under eccentric axial compressive loading. By use of a steel-grid embedded in the render layer on the tension side of the walls, a 30 % increase of the top load was achieved. Further, the use of the externally bonded grid changed the failure mode of the walls from brittle to ductile. The load bearing capacity of the strengthened walls can be determined by section resistance analysis with due consideration given to the effects of... (More)
Strengthening of load-bearing masonry walls might often be a solution to extend the life cycle and area of use of existing buildings. In the present work, strengthening of masonry walls by means of externally bonded steel-grid is studied. Full scale clay brick masonry walls were constructed and tested in laboratory under eccentric axial compressive loading. By use of a steel-grid embedded in the render layer on the tension side of the walls, a 30 % increase of the top load was achieved. Further, the use of the externally bonded grid changed the failure mode of the walls from brittle to ductile. The load bearing capacity of the strengthened walls can be determined by section resistance analysis with due consideration given to the effects of the render shrinkage and second order effects. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
alternative title
Experimentell undersökning av ytförstärkta, vertikalt belastade murade väggars beteende
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Masonry, strengthening, externally bonded grid, compressive
host publication
Proceedings of the 10th International Masonry Conference
editor
Milani, Gabriele ; Taliercio, Alberto and Garrity, Stephen
pages
10 pages
publisher
International Masonry Society
conference name
10th International Masonry Conference
conference location
Milan, Italy
conference dates
2018-07-09 - 2018-07-11
external identifiers
  • scopus:85062311878
language
English
LU publication?
yes
id
492b859b-0baf-4a2e-b1c1-9b5bae72969e
date added to LUP
2018-10-09 21:12:25
date last changed
2022-01-31 06:03:31
@inproceedings{492b859b-0baf-4a2e-b1c1-9b5bae72969e,
  abstract     = {{Strengthening of load-bearing masonry walls might often be a solution to extend the life cycle and area of use of existing buildings. In the present work, strengthening of masonry walls by means of externally bonded steel-grid is studied. Full scale clay brick masonry walls were constructed and tested in laboratory under eccentric axial compressive loading. By use of a steel-grid embedded in the render layer on the tension side of the walls, a 30 % increase of the top load was achieved. Further, the use of the externally bonded grid changed the failure mode of the walls from brittle to ductile. The load bearing capacity of the strengthened walls can be determined by section resistance analysis with due consideration given to the effects of the render shrinkage and second order effects.}},
  author       = {{Molnár, Miklós and Jönsson, Johan and Gottsäter, Erik}},
  booktitle    = {{Proceedings of the 10th International Masonry Conference}},
  editor       = {{Milani, Gabriele and Taliercio, Alberto and Garrity, Stephen}},
  keywords     = {{Masonry; strengthening; externally bonded grid; compressive}},
  language     = {{eng}},
  month        = {{07}},
  pages        = {{2006--2016}},
  publisher    = {{International Masonry Society}},
  title        = {{Experimental study of masonry walls strengthened with externally bonded steel-grid under eccentric axial compressive loading}},
  year         = {{2018}},
}