Performance based study on the seismic safety of buildings
DOI: https://doi.org/10.20528/cjsmec.2018.02.002
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In the scope of this study, information has been provided on the Static Pushover Analysis which is a nonlinear deformation controlled analysis method and the Capacity Spectrum Method used to determine the performance point. In this study, static pushover analysis was made on a six-storey building with reinforcement concrete frame system by changing the materials, steel rebars and soil characteristics. The building’s capacity curves were drawn and decided according to different concrete and reinforcement groups. Furthermore the performance points of different classes of concrete were studied according to three seismic effect levels. In the case of a decrease in the reinforcement strength, a decrease of approximately 30% occurs in the base shear force. If the concrete strength is increased, an increase of 11% occurred in the base shear force. Consequently, in the comparisons made with five different concrete groups and two different reinforcement groups, rather than the increase in the strength of the concrete, an increase in the reinforcement strength was observed to be more effective on the structural capacity. Furthermore, local soil classifications were observed to be the most significant point regarding peak displacement.
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References
ATC 40 (1996). Seismic evaluation and retrofit of concrete buildings. Applied Technology Council, Redwood City, California, USA.
Aydınoğlu MN (2003). Yapıların deprem performansının değerlendirilmesi için artımsal spektrum analizi yöntemi. Beşinci Ulusal Deprem Mühendisliği Konferansı, İstanbul, Turkey. (in Turkish)
Celep Z, Kumbasar N (2004). Deprem Muhendisliğine Giris ve Depreme Dayanıklı Yapı Tasarımı. Beta Yayınevi, İstanbul, Turkey. (in Turkish)
Elnashai AS (2002). Do we really need inelastic dynamic analysis? Journal of Earthquake Engineering, (6), 123-130.
Faella G, Kilar V (1998). Asymmetric multi-storey R/C frame structures: push- over versus nonlinear dynamic analysis. Proceedings of the Eleventh European Conference on Earthquake Engineering, Paris, France.
FEMA 273 (1997). NEHRP Guidelines for the Seismic Rehabilitation of Buildings. Federal Emergency Management Agency, Washington D.C., USA.
FEMA 356 (2000). Prestandard and Commentary for the Seismic Rehabilitation of Buildings. Federal Emergency Management Agency, Washington D.C., USA.
Irtem E, Hasgul U (2009). Investigation of effects of nonlinear static analysis procedures to performance evaluation on low-rise RC buildings. Journal of Performance of Constructed Facilities, 23(6), 456-466.
Kalkan E, Kunnath SK (2007). Assessment of current nonlinear static procedures for seismic evaluation of buildings. Engineering Structures, 29(3), 305-316.
Kesim B (2005). Statik İtme Analizi ile Mevcut bir Betonarme Binanın İncelenmesi. M.Sc. thesis, İstanbul Technical University, İstanbul, Turkey. (in Turkish)
Kilar V, Fajfar P (1997). Simple push-over analysis of asymmetric buildings. Earthquake Engineering and Structural Dynamics, 26(2), 233-249.
Krawinkler H, Seneviratna GDPK (1998). Pros and cons of a pushover analysis of seismic performance evaluation. Engineering Structures, 20(4-6), 452-464.
Moghadam AS, Tso WK (1995). 3-D pushover analysis for eccentric buildings. Proceedings of 7th Canadian Conference on earthquake engineering, Montreal, Canada.
Özdaş A (2006). Asmolen Döşemeli Betonarme Yapıların Doğrusal Olmayan Statik İtme Analizi. M.Sc. thesis, Karadeniz Technical University, Trabzon, Turkey. (in Turkish)