Vibration Monitoring and Damage Assessment of a Retrofitted RC Frame Model
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Abstract
The need for structural damage assessment is continuously growing to monitor the damage level of existing civil structures. The information of damage assessment is utilized to make decisions on maintenance of damaged structure. This paper intends to investigate the effect of lateral load on the damage indexes of RC frame model strengthened using FRP sheets. Failure mechanism of the experimental frame model has been investigated. The effects of FRP wrap have been reported. Subsequently, the damage indexes based on modal parameters method are investigated with the help of impact hammer excitation test. Results of this study show that the use of FRP wrapped for structural retrofitting provides increased significant lateral load capacity and ductile behaviour.The damage indexes of retrofitted frame reduce indicating better performance as compare to the control frame.
Keywords: Damage index, non-ductile structure, retrofitted RC frame, FRP sheet, FRF.
E-mail: atiwat.vimut@gmail.com
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References
[2] Mukherjee, A. and Joshi, M., 2005. FRP3C reinforced concrete beam-column joints under cyclic excitation, Composite Structures, 70, 185-199.
[3] Park, Y.J. and Ang, A.H-S., 1985. Seismic damage analysis of RC buildings, Structural Engineering ASCE, ST4-111, 740-757.
[4] Dipasquale, E. and Cakmak, A.S., 1990. Seismic damage assessment using linear models,Soil Dynamics and Earthquake Engineering, 4(9), 194-215.
[5] Rodriguez, R. and Barroso, L.R., 2002. Stiffness-mass ratios method for baseline determination and damage assessment of a benchmark structure, Proceedings of the American Control Conference Anchorage, AK, USA, 2469-2474.
[6] Ko, J.M., Sun, Z.G. and Ni, Y.Q., 2002. Multi-stage identification scheme for detecting damage in cable stayed Kap Shui Mun Bridge, Engineering Structures, 24, 857-868.
[7] Maia, N.M.M., Silva, J.M.M., Almas, E.A.M. and Sampaio, R.P.C., 2003. Damage detection in structures: from mode shape to frequency response function methods, Mechanical Systems and Signal Processing, 17(3), 489-498.
