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Seismic Strengthening of Deficient RC Buildings using Externally Bonded FRPs (bibtex)
by Reyes Garcia Lopez, Iman Hajirasouliha, Kypros Pilakoutas, Maurizio Guadagnini, Thierry Chaudat
Abstract:
A full-scale RC building with poor detailing in the beam-column joints was tested on a shake table. After initial tests which damaged the structure, the frame was strengthened using FRPs and re-tested. This paper studies analytically the efficiency of the strengthening at improving the seismic performance of this frame. The experimental data from the initial shake table tests are used to calibrate analytical models. To simulate deficient beam-column joints, steel-concrete bond-slip and bond-strength degradation models are considered. The analytical models are used to assess the efficiency of the FRP rehabilitation using real seismic records. The FRP intervention enhanced the behaviour of the substandard joints, and resulted in substantial improvement of the seismic performance of the damaged RC frame. It is shown that after strengthening, the damaged building would experience on average 65% less global damage compared to the original structure if it was subjected to a set of real seismic records.
Reference:
Seismic Strengthening of Deficient RC Buildings using Externally Bonded FRPs (Reyes Garcia Lopez, Iman Hajirasouliha, Kypros Pilakoutas, Maurizio Guadagnini, Thierry Chaudat), In 14th European Conference on Earthquake Engineering, 2010. (Paper No. 890 (CD Proceedings).)
Bibtex Entry:
@INPROCEEDINGS{Garcia2010a,
  author = {Garcia Lopez, Reyes and Iman Hajirasouliha and Kypros Pilakoutas
	and Maurizio Guadagnini and Thierry Chaudat},
  title = {Seismic Strengthening of Deficient RC Buildings using Externally
	Bonded FRPs},
  booktitle = {14th European Conference on Earthquake Engineering},
  year = {2010},
  address = {Ohrid, republic of Macedonia},
  month = {30 August - 03 September},
  note = {Paper No. 890 (CD Proceedings).},
  abstract = {A full-scale RC building with poor detailing in the beam-column joints
	was tested on a shake table. After initial tests which damaged the
	structure, the frame was strengthened using FRPs and re-tested. This
	paper studies analytically the efficiency of the strengthening at
	improving the seismic performance of this frame. The experimental
	data from the initial shake table tests are used to calibrate analytical
	models. To simulate deficient beam-column joints, steel-concrete
	bond-slip and bond-strength degradation models are considered. The
	analytical models are used to assess the efficiency of the FRP rehabilitation
	using real seismic records. The FRP intervention enhanced the behaviour
	of the substandard joints, and resulted in substantial improvement
	of the seismic performance of the damaged RC frame. It is shown that
	after strengthening, the damaged building would experience on average
	65% less global damage compared to the original structure if it was
	subjected to a set of real seismic records.},
  keywords = {dynamic analyses, seismic strengthening, FRPs, RC frames},
  owner = {Maurizio},
  timestamp = {2010.09.08}
}
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