Seismic Behavior of a Full-Scale RC Structure Retrofitted Using GFRP Laminates
Publication: Journal of Structural Engineering
Volume 134, Issue 5
Abstract
In the framework of the seismic performance assessment and rehabilitation research project, a series of bidirectional pseudodynamic tests were performed on a full-scale torsionally unbalanced three-story reinforced concrete (RC) frame structure. The structure was designed only for gravity loads and was subjected to two rounds of tests both on the “as-built” and glass fiber reinforced polymer (GFRP) retrofitted configuration at the ELSA Laboratory of the Joint Research Centre of the European Commission. The aim of the GFRP repair was to enhance the global performance of the structure in terms of ductility and energy dissipation by providing columns with more deformation capacity and preventing the development of brittle failure modes. The driving principles for the design of the GFRP retrofit and the experimental results in terms of global and local performance are presented and compared in order to validate the proposed retrofit technique. The experimental results represent a reference database for the development of design criteria for the seismic retrofit of RC structures using composite materials.
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Acknowledgments
The SPEAR project was funded by the European Community under the “Competitive and Sustainable Growth” Program (1998–2002), under Contract No. UNSPECIFIEDG6RD-CT2001-00525 and NAS Amendment. Part of the experimental activity was funded under the FP5—Access to Research Infrastructures [Contract No. UNSPECIFIEDHPR–CT-1999-00059 (ECOLEADER-JRC)]. The SPEAR project was coordinated by Dr. Paolo Negro, from the Joint Research Centre with the administrative coordination of Professor Michael Fardis, from the University of Patras. Professor Fardis also provided the original design of the structure. The results of the SPEAR project are a joint effort of the whole SPEAR consortium. The pseudodynamic tests were made possible thanks to the expertise and dedication of the whole ELSA staff. The retrofit of the structure was supported by MAPEI S.p.a., Milano, Italy.
References
Antonopoulos, C. P., and Triantafillou, T. C. (2002). “Analysis of FRP-strengthened RC beam-column joints.” J. Compos. Constr., 6(1), 41–51.
Balsamo, A., Manfredi, G., Mola, E., Negro, P., and Prota, A. (2005). “Seismic rehabilitation of a full-scale structure using GFRP laminates.” ACI Struct. J., 230, 1325–1344.
CNR-DT. (2004). “Istruzioni per la Progettazione, l’Esecuzione ed il Controllo di Interventi di Consolidamenti di Intervento Statico mediante l’utilizzo di Compositi Fibrorinforzati.” CNR-DT.200/2004.
Cosenza, E., Manfredi, G., and Verderame, G. M. (2002). “Seismic assessment of gravity load designed RC frames: Critical issues in structural modeling.” J. Earthquake Eng., 6(1), 101–122.
Cosenza, E., and Prota, A. (2006). “Experimental behaviour and numerical modelling of smooth steel bars under compression.” J. Earthquake Eng., 10(3), 313–329.
EN. (2003). “Design of structures for earthquake resistance. Part 1: General rules, seismic actions, and rules for buildings.” EN 1998-1 Final Draft of Eurocode 8, European Committee for Standardization, Brussels, Belgium.
Fajfar, P., Dolsek, M., Marusic, D., and Stratan, A. (2005). “Pre- and post-test mathematical modeling of the SPEAR building.” Proc., SPEAR (Seismic Performance Assessment and Rehabilitation) Int. Workshop, Ispra, Italy, EU Publications Office, 173–188.
Fardis, M., and Negro, P. (2005). “SPEAR.” Proc., SPEAR (Seismic Performance Assessment and Rehabilitation) Int. Workshop, Ispra, Italy, EU Publications Office, 304.
Jeong, S.-H., and Elnashai, A. S. (2005). “Analytical assessment of an irregular RC frame for full-scale 3D pseudodynamic testing. Part I: Analytical model verification.” J. Earthquake Eng., 9(1), 95–128.
Mola, E., and Negro, P. (2005). “Full scale PsD testing of the torsionally unbalanced SPEAR structure in the ‘as-built’ and retrofitted configurations.” Proc., SPEAR (Seismic Performance Assessment and Rehabilitation) Int. Workshop, Ispra, Italy, EU Publications Office, 139–154.
Molina, F. J., Buchet, P., Magonette, G. E., Hubert, O., and Negro, P. (2004). “Bidirectional pseudodynamic technique for testing a three-storey reinforced concrete building.” Proc., 13th World Conf. on Earthquake Engineering, Vancouver, Canada, Paper No. 75.
Molina, F. J., Verzeletti, G., Magonette, G., Buchet, P., and Geradin, M. (1999). “Bidirectional pseudodynamic test of a full-size three-storey building.” Earthquake Eng. Struct. Dyn., 28(12), 1541–1566.
Negro, P., Mola, E., Molina, F. J., and Magonette, G. (2004). “Full-scale PsD testing of a torsionally unbalanced three-storey non-seismic RC frame.” Proc., 13th World Conf. on Earthquake Engineering, Vancouver, Canada, Paper No. 968.
Ordinanza No. 3431. (2005). “Primi elementi in materia di criteri generali per la classificazione sismica del territorio nazionale e di normative tecniche per le costruzioni in zona sismica.” Ulteriori modifiche ed integrazioni all’ordinanza del Presidente del Consiglio dei Ministri n. 3274 del 20 marzo 2003, recante.
Pinto, A., and Varum, H. (1999). “Dynamic nonlinear analyses for the-4 storey RC frame bare, infilled and retrofitted frames.” Joint Research Centre-Ispra, Safety in Structural Mechanics Unit Institute for Systems, Informatics and Safety European Commission.
Prota, A., Manfredi, G., and Cosenza E. (2006). “Ultimate behaviour of axially loaded RC wall-like columns confined with GFRP.” Composites, Part B, 37, 670–678.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 134 • Issue 5 • May 2008
Pages: 810 - 821
Copyright
© 2008 ASCE.
History
Received: Jan 19, 2006
Accepted: Aug 20, 2007
Published online: May 1, 2008
Published in print: May 2008
Notes
Note. Associate Editor: Reginald DesRoches
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