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FRP Strengthening of Seismically Deficient Full-Scale RC Beam-Column Joints (bibtex)
by Reyes Garcia Lopez, Yasser Jemaa, Yasser Helal, Kypros Pilakoutas, Maurizio Guadagnini
Abstract:
This paper presents preliminary results of tests on three deficient full-scale RC beam-column T-joints strengthened with FRP composites. The joints were representative of existing RC buildings in developing countries, and therefore had inadequate detailing in the core zone. The bare joints were first tested under cyclic load to evaluate their basic seismic performance. After the initial tests, the damaged concrete in the core was removed and replaced with new concrete. The joints were subsequently strengthened using externally bonded FRP sheets and the tests were repeated. The results from the experiments were then used to compare the efficiency of the strengthening strategy at improving the seismic performance of the joints using existing guidelines. The results show that the strengthening with FRP sheets was very effective at improving the load carrying capacity of the deficient joints by up to 66%.
Reference:
FRP Strengthening of Seismically Deficient Full-Scale RC Beam-Column Joints (Reyes Garcia Lopez, Yasser Jemaa, Yasser Helal, Kypros Pilakoutas, Maurizio Guadagnini), In Proceedings of the 15th World Conference on Earthquake Engineering (15 WCEE), 2012. (Electronic proceedings)
Bibtex Entry:
@INPROCEEDINGS{Garcia2012,
  author = {Reyes Garcia Lopez and Yasser Jemaa and Yasser Helal and Kypros Pilakoutas
	and Maurizio Guadagnini},
  title = {FRP Strengthening of Seismically Deficient Full-Scale RC Beam-Column
	Joints},
  booktitle = {Proceedings of the 15th World Conference on Earthquake Engineering
	(15 WCEE)},
  year = {2012},
  number = {2222},
  series = {World Conference on Earthquake Engineering},
  address = {Lisbon, Portugal},
  month = {24-28 September},
  note = {Electronic proceedings},
  abstract = {This paper presents preliminary results of tests on three deficient
	full-scale RC beam-column T-joints strengthened with FRP composites.
	The joints were representative of existing RC buildings in developing
	countries, and therefore had inadequate detailing in the core zone.
	The bare joints were first tested under cyclic load to evaluate their
	basic seismic performance. After the initial tests, the damaged concrete
	in the core was removed and replaced with new concrete. The joints
	were subsequently strengthened using externally bonded FRP sheets
	and the tests were repeated. The results from the experiments were
	then used to compare the efficiency of the strengthening strategy
	at improving the seismic performance of the joints using existing
	guidelines. The results show that the strengthening with FRP sheets
	was very effective at improving the load carrying capacity of the
	deficient joints by up to 66%.},
  keywords = {beam-column exterior joints, CFRP strengthening, reinforced concrete,
	cyclic load},
  owner = {Maurizio},
  timestamp = {2012.10.07}
}
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