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Feasibility of using ferrocement and GFRP for strengthening bearing walls with openings

Feasibility of using ferrocement and GFRP for strengthening bearing walls with openings Residential buildings that have been built using bearing walls may require making new openings in order to fulfill the functional requirements that can minimize the capacity of walls, motivating a need for strengthening. The objective of this research is to study the feasibility of using glass fiber reinforced polymer (GFRP) and thin Ferrocement layer to strengthen bearing walls with openings to resist extreme loads. A total of eleven walls samples were built from drilled clay bricks with same dimensions, breadth (1000 mm), thickness (120 mm), and length (800 mm). Three walls were considered as control test specimens, the first of them was plain wall and the other two were with openings but without strengthening. The opening sizes were 300 × 300 mm and 300 × 500 mm. Eight walls were built with cut out openings and strengthened with GFRP and Ferrocement. All samples were loaded by axial compression load on the whole width of the wall. First crack load, ultimate load and modes of failures were obtained. The test results clearly demonstrated that the efficiency of using GFRP and Ferrocement as repairing and strengthening advanced methods for bearing walls with openings. The proposed methods delayed the appearance of initial crack, which enhanced bearing wall stiffness and increased the ultimate load capacity by average percentage of 17.5% comparing to walls without strengthening. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Building Pathology and Rehabilitation Springer Journals

Feasibility of using ferrocement and GFRP for strengthening bearing walls with openings

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References (30)

Publisher
Springer Journals
Copyright
Copyright
Subject
Engineering; Building Repair and Maintenance; Structural Materials; Engineering Thermodynamics, Heat and Mass Transfer; Energy Efficiency; Building Materials
ISSN
2365-3159
eISSN
2365-3167
DOI
10.1007/s41024-019-0070-8
Publisher site
See Article on Publisher Site

Abstract

Residential buildings that have been built using bearing walls may require making new openings in order to fulfill the functional requirements that can minimize the capacity of walls, motivating a need for strengthening. The objective of this research is to study the feasibility of using glass fiber reinforced polymer (GFRP) and thin Ferrocement layer to strengthen bearing walls with openings to resist extreme loads. A total of eleven walls samples were built from drilled clay bricks with same dimensions, breadth (1000 mm), thickness (120 mm), and length (800 mm). Three walls were considered as control test specimens, the first of them was plain wall and the other two were with openings but without strengthening. The opening sizes were 300 × 300 mm and 300 × 500 mm. Eight walls were built with cut out openings and strengthened with GFRP and Ferrocement. All samples were loaded by axial compression load on the whole width of the wall. First crack load, ultimate load and modes of failures were obtained. The test results clearly demonstrated that the efficiency of using GFRP and Ferrocement as repairing and strengthening advanced methods for bearing walls with openings. The proposed methods delayed the appearance of initial crack, which enhanced bearing wall stiffness and increased the ultimate load capacity by average percentage of 17.5% comparing to walls without strengthening.

Journal

Journal of Building Pathology and Rehabilitation – Springer Journals

Published: Dec 1, 2020

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