Abstract
This paper assesses the causes and socioeconomic impact of some recent cases of collapsed buildings in Nigeria. Information on selected collapsed buildings was collated, and a case study of a failed one-story building is presented for emphasis. A summary of the technical assessment and remediation of the building was presented as well. Both field and laboratory work involved close inspection of the building, excavation to reveal the condition of the foundation, taking samples of slabs and beams from the collapsed building for laboratory study, detailed structural analysis, a design analysis of the structural elements of the building to reveal causes of failure, and identification of remedial options and recommendation. Solubility of concrete in acids was used to assess the quality of concrete used. This study revealed that a lot of lives and properties have been lost in the various collapsed buildings, and these losses have negatively impacted the socioeconomic status of Nigerians. The results of the case study revealed that the main structural components (slab, beam, column, and footing) of the building were not properly proportioned and were seriously underreinforced, which led to excessive deflection. Additionally, concrete mixes used in the construction were found to be weak, and walls that should have been non-load-bearing ended up carrying loads and induced a hogging moment onto the slab for which reinforcement was not provided. The solubility tests showed that the ratio of calcium concentration of concrete mix used in the collapsed building to that of standard 1:2:4 concrete mixes were 0.03, 0.20, and 0.73, respectively. These low ratios indicate that the cement portion in the concrete was not adequate, and it was concluded that the concrete samples from the collapsed building contained less calcium than necessary for structural success. The summary of the assessment underscored the need for ensuring quality control and proper supervision in the construction of reinforced concrete structures.
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References
Financial Standard: Another building collapse. In: Financial Standard, 24th July 2006
Ayininuola, G.M., Olalusi, O.O.: Assessment of building failures in Nigeria: Lagos and Ibadan as case study. Afr. J. Sci. Technol. 5(1), 73–78 (2004)
Olayiwola, B.: The fallen edifice in Ikeja. In: Akinlabi (ed.) pp. 25, TELL Magazine, Lagos, 1st February 1999
Ephraim, R.B.: Prevention of building collapse: an alternative for sustainable housing development. Off. J. Niger. Soc. Eng. 44(1), 34–36 (2006)
Guidelines for Failure Investigation, Task Force on Guidelines for Failure Investigation. American Society of Civil Engineers, New York (1989)
Standard Methods for the Examination of Water and Wastewater, 18th edn. American Public Health Association Inc., New York (1998)
Neville, A.M., Brooks, J.J.: Concrete Technology, ELBS edn. England (1993)
Nigerian Society of Engineers Investigation Panel Report: Collapsed Saque Comprehensive College. NSE, Port-Harcourt (1999)
Nigerian Society of Engineers Investigation Panel Report: Collapse of building at Muritala Muhammed International Airport Road, Lagos. NSE, Lagos (1994)
Salau, M.A.: Design, construction and maintenance measure for preventing the collapse of reinforced concrete structure. J. Niger. Inst. Struct. Eng. I(1), 1–13 (2005)
Awe, J.: Collapsed buildings kill five. In: Ganiyu, M. (ed.) Nigerian Tribune, Ibadan, back page, 29th April 1999
Windapo, B.: The threat of building collapse on sustainable development in the built environment in Nigeria. In: Proceedings of the 36th Annual General Meeting/Conference. Nigerian Institute of Building, Jos (2006)
Agba, A.A.: Geotechnical factors in collapse of buildings and structures in Nigeria. J. Niger. Inst. Struct. Eng. 1(1), 1–15 (2005)
BS 6399: Loading for buildings, Part 1 (Code of practice for dead and imposed loads). British Standards Institution, London (1996)
BS 8110: Structural use of concrete, Part 3. British Standards Institution, London (1985)
BS 8110: Structural use of concrete, Part 1. British Standards Institution, London (1997)
Moseley, W.H., Bungey, J.H.: Reinforced Concrete Design, ELBS 3rd edn. Chapman and Hall, Hong Kong (1990)
Kong, F.K., Evans, R.H.: Reinforced and Prestressed Concrete, ELBS 3rd edn. Chapman and Hall, Hong Kong (1990)
Acknowledgment
The authors acknowledge Mr. S.A. Owolade and Mr. R.B. Ajala both of the Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife (Nigeria) for taking part in the study.
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Editor’s Note: This feature article demonstrates the tremendous need for engineering oversight and support in Nigeria and illustrates the difference between construction practices in developed and non-developed countries. As you read the article, please consider how you and your expertise might help with meeting the rather apparent need in Nigeria.––McIntyre R. Louthan, Jr., Editor.
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Olajumoke, A.M., Oke, I.A., Fajobi, A.B. et al. Engineering Failure Analysis of a Failed Building in Osun State, Nigeria. J Fail. Anal. and Preven. 9, 8–15 (2009). https://doi.org/10.1007/s11668-008-9197-7
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DOI: https://doi.org/10.1007/s11668-008-9197-7