Seismic Strengthening of Substandard Buildings with Composite Materials

Conference paper


Guadagnini, G., Pilakoutas, K., Hajirasouliha, I., Garcia, R., Kyriakides, N. and Ciupala, A. 2019. Seismic Strengthening of Substandard Buildings with Composite Materials. IWAMISSE 2019: 2nd International Workshop on Advanced Materials and Innovative Systems in Structural Engineering: Novel Researches. Istanbul, TR 20 Sep 2019 The International Federation for Structural Concrete.
AuthorsGuadagnini, G., Pilakoutas, K., Hajirasouliha, I., Garcia, R., Kyriakides, N. and Ciupala, A.
TypeConference paper
Abstract

This paper discusses the results from experimental programmes including shaking table tests on full-scale one-bay two-storey RC frames with poor detailing in the beam-column joints. The tests were performed on the AZALEE shake table at the Commissariat à l'Énergie Atomique (CEA) Laboratory in Saclay, France, as part of two EU-funded Projects that aimed to investigate the effectiveness of externally bonded carbon fibre reinforced polymer (CFRP) reinforcement in improving the seismic behaviour of substandard RC buildings. To simulate typical substandard construction, the reinforcement of columns and beam-column joints of the full-scale structures had inadequate detailing. After an initial series of shake table tests were carried out to assess the seismic behaviour of the bare buildings, columns and joints were repaired and subsequently retrofitted using CFRP for the ECOLEADER building, and a retrofitting solution consisting of CFRP and Post-Tensioned Metal Straps for the BANDIT building. The buildings were then subjected to incremental seismic excitations to assess the effectiveness of the retrofitting solutions at improving the global and local building performance. Whilst the original bare buildings were significantly damaged at a peak ground acceleration (PGA) of 0.15-0.20g, the retrofitted buildings resisted severe shake table tests up to PGA=0.50-0.60g without failure. Moreover, the retrofitting intervention enhanced the interstorey drift ratio capacity and has proven to be very effective at addressing the seismic deficiencies of substandard buildings.

Year2019
ConferenceIWAMISSE 2019: 2nd International Workshop on Advanced Materials and Innovative Systems in Structural Engineering: Novel Researches
PublisherThe International Federation for Structural Concrete
Publication dates
OnlineSep 2019
Publication process dates
Deposited24 Jun 2020
Book titleProceedings of IWAMISSE 2019: 2nd International Workshop on Advanced Materials and Innovative Systems in Structural Engineering: Novel Researches
Book editorİlki, A.
Çavunt, Y. S.
ISBN978-975-561-507-3
Web address (URL)https://ade5b373-a347-4a54-bb6d-787fdc8fb82a.filesusr.com/ugd/0467c3_da6ceba8263e43a78470d65fe5eef493.pdf
Copyright informationAll rights reserved.
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