Design Methodology for Seismic Upgrading of Substandard Reinforced Concrete Structures

Thermou, Georgia E.; Pantazopoulou, Stavroula J.; Elnashai, Amr S.

Abstract

This article presents a design methodology for seismic upgrading of existing reinforced concrete (RC) buildings. The methodology is based on the modification of the deflected shape of the structure so as to achieve a near-uniform distribution of interstorey drift along the building height, thereby eliminating damage localization. Yield Point Spectra are utilized for the definition of demand and a direct displacement-based design approach is implemented. The fundamental steps of the method are described in detail, including a systematic evaluation of assumptions and limitations. A full-scale tested structure is used as a case study for assessment and verification of the proposed methodology. Alternative retrofit scenarios are set according to target response and performance levels. The role of the target deflected response shape and its influence on the outcome of the retrofit strategy is investigated. The viability of the alternative retrofit scenarios is studied for different ground motions including near-fault earthquake records.

Citation

Thermou, G. E., Pantazopoulou, S. J., & Elnashai, A. S. (2007). Design Methodology for Seismic Upgrading of Substandard Reinforced Concrete Structures. Journal of Earthquake Engineering, 11(4), 582-606. https://doi.org/10.1080/13632460601031573

• Journal Article Type: Article
• Acceptance Date: Jul 12, 2006
• Online Publication Date: Jul 9, 2007
• Publication Date: Jul 30, 2007
• Deposit Date: Dec 10, 2018
• Publicly Available Date: Dec 20, 2018
• Journal: Journal of Earthquake Engineering
• Print ISSN: 1363-2469
• Electronic ISSN: 1559-808X
• Publisher: Taylor and Francis
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 4
• Pages: 582-606
• DOI: https://doi.org/10.1080/13632460601031573
• Public URL: https://nottingham-repository.worktribe.com/output/1395042
• Publisher URL: https://www.tandfonline.com/doi/full/10.1080/13632460601031573
• Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Earthquake Engineering on 9 July 2007, available online: http://www.tandfonline.com/10.1080/13632460601031573.
• Contract Date: Dec 20, 2018