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Kassem, Elsamny M.
- Retrofitting and Strengthening of Existing Building Foundation
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Authors
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1 Civil Engineering Dep., Al-Azhar University, Cairo., EG
2 Civil Engineering Dep. Sinai University, Faculty of Engineering, North Sinai- El Arish- El Masaid., EG
1 Civil Engineering Dep., Al-Azhar University, Cairo., EG
2 Civil Engineering Dep. Sinai University, Faculty of Engineering, North Sinai- El Arish- El Masaid., EG
Source
International Journal of Engineering studies, Vol 5, No 1 (2013), Pagination: 111-128Abstract
Large numbers of existing buildings are made of concrete. It has been noticed that some of them proved to be inadequate to resist lateral or vertical loads by current code requirements. This may be due to poorly designed or damaged elements of buildings. Also, during the life span of a building, some of its elements may deteriorate damage or simply get older. Adding shear walls and/or wing walls is one method of strengthening buildings to resist lateral loads such as earthquake or wind loads. In the present work, some methods of strengthening existing foundation concrete buildings to resist lateral and vertical loads are presented. A study case of an existing sweet factory in Cairo area is presented. Deterioration of some concrete elements due to old age has been found. The said condition of the foundation was due to washing floors with chemicals to remove sticky sweets. However, no adequate disposal system was found (waste water collection). The analyses of the structural elements of that existing building showed that it is seismically unsafe. Retrofitting of existing damage and deteriorated foundation was done by adding new raft foundation and considering the old foundation as plain concrete. The addition of new shear and wing walls was undoubtedly the best method of strengthening the existing structure to improve seismic performance. The walls were cast-in-site. The shear and wing walls were connected to the foundation.Keywords
Retrofitting, Strengthening, Foundation, Shear Walls, Wing WallsReferences
- Abou- Elfath. H, Ghobarah. and Aziz. T. S. 1997."Damage analysis of concrete buildings retrofitted using concrete steel bracing". First international Civil Engineering (Egypt - China - Canada) Dec 18 - 20 Caito -Egypt, pp 103 - 109.
- Badoux- Marc and Jirsa. O. 1990."Steel bracing of RC frames for seismic retrofitting" Journal Of Structural Engineering ASCE Vol. 116, No.1.
- El Samny,M.K., Abbas, H.& El Sebai, A. 1996. "Toward cheaper and more earthquake reinforced concrete frames" Proceedings of the annual conference of the Canadian society of civil engineering, Vol. llb, pp. B43 - 852, Edmonton,Alberta.
- ElSamny, M.K., Abbas, H. and El Sebai, A. 1997. "Strengthening of existing building elements" First International civil Engineering (Egypt - China -Canada) Dec 18 - 20 Cairo -Egypt, pp 111 - 119.
- Ghobarah, A., Abbas.H.& El Samny, M.K. 1997 . "Lateral load resistance of existing structures" First international Civil Engineering (Egypt - China - Canada) Dec 18 - 20 Caito -Egypt, pp 63 - 7l .
- Glrobarah, A., Aziz, T. & Biddah A. 1997. "Rehabilitation of reinforced concrete frame connections Lrsing corrugated steel jacketing". ACI Structural journal, May-June, PP-283-294.
- Ghobarah, A., Biddah A., & Mahgoub, M. 1997. " Seismic retrofit of reinforced concrete columns using steel jackets".The European earthquake engineeringjournal, Vol. 11, No. 4.
- Reynolds, C. E. & Sleedman, J. C. 1988. "Reinforced Concrete Hand Book", E&F. N. Spoon.