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Numerical Modelling of Retrofitted Reinforced Concrete Building Frames

Afolayan, Joseph O. and Babalola, O. E. and Awoyera, P. O. and Adekeye, Wasiu and Ishola, Felix (2016) Numerical Modelling of Retrofitted Reinforced Concrete Building Frames. Research Journal of Applied Sciences, Engineering and Technology, 12 (2). pp. 206-213. ISSN 2040-7467

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This study presents an overview and investigates the adequacy of the retrofit concept used in the reinforced concrete building frame of a distressed office building complex. The retrofit assessed consists of steel members welded together to form a steel frame with a reinforced concrete beam as base, acting as support for two floor slabs and roof truss of the building. Reinforced concrete building frame with and without retrofit steel frames were analysed using STAAD Pro structural analysis software and the results were compared with recommended standards from relevant codes of practice. Criteria considered include moments, shear forces and displacements/deflections. Results obtained revealed that the retrofit concept meets up with all the recommended standards. The efficiency of the retrofit used was determined in order to evaluate the extent by which the retrofit affects deflection of the beams. For all critical sections, the efficiency of the adopted retrofit concept varied significantly between 49.1-63.2%, 48.3-85.34% and 45.3-90.9%, respectively when deflection serviceability limit state, bending moment and shear force was considered respectively.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: Dr. Paul Awoyera
Date Deposited: 27 Jan 2016 10:44
Last Modified: 27 Jan 2016 10:44

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