Unreinforced Brick Walls with Openings Rehabilitated using U & L-Shaped Steel Plates
Citation
Elsamny, M.K., Abd-Elhamed, M.K., Ezz-Eldeen, H.A., Mahmoud, M.H "Unreinforced Brick Walls with Openings Rehabilitated using U & L-Shaped Steel Plates", International Journal of Engineering Trends and Technology (IJETT), V46(2),80-89 April 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
In the present study, five unreinforced brick walls of dimensions 66 cm height, 86 cm width and 10 cm thickness with 25cm x 25cm opening dimensions were constructed and tested under uniform loading. One wall was tested as control wall and was loaded until failure. Three walls were loaded up to 80% of failure load till cracks occurred and then rehabilitated using (2x40mm, 2x60mm, 2x80mm) of L&U-shaped steel plate inside opening corners welded with U & L-shaped steel plate at both sides. Another wall was loaded up to 80% of failure load till cracks occurred and then rehabilitated using diagonal steel plate around opening at both sides. The obtained test results show that the walls rehabilitated by using different dimensions of L&Ushaped steel plate gives an increase in the load carrying capacity up to 63.64% of the control ultimate capacity but no significant increases in ductility. As well as for wall rehabilitated by using diagonal steel plate around opening at both sides gives an increase in the load carrying capacity up to 29.70%of the control ultimate capacity but no significant increases in ductility. However, increasing dimensions of L&U-shaped steel plate used in rehabilitation increases the load carrying capacity of walls and no significant increases in ductility.
References
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Keywords
Brick walls, opening, rehabilitation, steel plate.