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http://dx.doi.org/10.5762/KAIS.2012.13.6.2804

Retrofit Design of RC Column by Displacement-Based-Design Method  

Lim, Cheong-Kweon (Korea Institute of Construction & Transportation Technology Evaluation and Planning)
Kwon, Min-Ho (Department of Civil Engineering, GyeongSang National University)
Ha, Keum-Hee (Department of Civil Engineering, GyeongSang National University)
Kim, Jin-Sup (Department of Civil Engineering, GyeongSang National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.6, 2012 , pp. 2804-2811 More about this Journal
Abstract
In this study, It is developed a retrofitting procedure of RC column with rectangular section to archive the target displacement at failure. Nonlinear behavior of the column is considered as the equivalent linear system. First, target displacement is determined, and then elastic displacement spectrum is constructed to estimate the equivalent natural vibration period of the SDOF system. After natural vibration period is determined, required strength is calculated using secant stiffness based on the mass of system. In accordance with, obtained force-displacement relationship through non-linear fiber based section analysis, retrofit design was carried out to meet required strength. As a result, retrofitted RC column can confirm that the improved seismic performance. It is observed that the proposed design procedure can be applicable to seismic retrofitting design of columns.
Keywords
Retrofit design; Equivalent linear system; Elastic design spectrum; Target displacement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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