Vulnerability Analysis and Seismic Retrofit of a Strategic Building
Publication: Journal of Performance of Constructed Facilities
Volume 31, Issue 2
Abstract
The seismic vulnerability analysis of a strategic building is presented in this paper. A refined finite-element model was set up on the basis of available experimental results, and updated on the basis of new experimental analyses on materials and structure. As demonstrated by an experimental vibration analysis, the structural behavior is influenced very much by the irregularity of the building and the presence of an adjacent building with no seismic joint. The results indicate a high vulnerability of the building to seismic actions, and the inadequacy of the pile foundation—for which a specific nonlinear analysis was performed—to support horizontal seismic loads. A retrofit intervention, based on the insertion of a seismic isolation system and the realization of a seismic joint with the adjacent building, was proposed, which allows the reduction of horizontal forces in the piles and the torsional movements of the structure.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The activities described in this paper were carried out in the framework of an agreement between ENEA and the Regional Council of Abruzzo, Italy. The authors are particularly grateful to Dr. Piero Farinosi for his helpful contribution to this study.
References
Ballio, G., and Mazzolani, F. M. (1987). Strutture in acciaio, Hoepli, Milan, Italy (in Italian).
Basu, D., and Jain, S. K. (2004). “Seismic analysis of asymmetric buildings with flexible floor diaphragms.” J. Struct. Eng., 1169–1176.
Bazzurro, P., Benedettini, F., Clemente, P., Martinelli, A., and Salvatori, A. (2009). “Lezioni dal terremoto dell’Abruzzo: il comportamento degli edifici visto dall’angolo prospettico della regola d’arte nel costruire.” Energia, Ambiente e Innovazione, 55(3), 28–45 (in Italian).
Broms, B. B. (1964). “Lateral resistance of piles in cohesive soils.” J. Soil Mech. Found. Div., 90(2), 27–64.
Çelebi, M., et al. (2010). “Recorded motions of the Mw 6.3 April 6, 2009 L’Aquila (Italy) earthquake and implications for building structural damage: A review.” Earthquake Spectra, 26(3), 651–684.
Clemente, P., Bongiovanni, G., Buffarini, G., and Saitta, F. (2015). “Seismic input in the structural design: Considerations and application to the Italian territory.” Int. J. Saf. Secur. Eng., 5(2), 101–112.
Clemente, P., and Buffarini, G. (2010). “Base isolation: Design and optimization criteria.” J. Seismic Isolation Protect. Syst., 1(1), 17–40.
De La Colina, J. (1999). “In-plane floor flexibility effects on torsionally unbalanced systems.” Earthquake Eng. Struct. Dyn., 28(12), 1705–1715.
Elghazouli, A. Y., ed. (2009). Seismic design of building to eurocode 8, Spon Press, New York.
Fardis, M. N. (2009). Seismic design, assessment and retrofitting of concrete buildings based on EN-eurocode8, Springer, Dordrecht, Netherlands.
Gardner, L., and Nethercot, D. A. (2005). Designer’s guide to EN-1993-1-1 eurocode 3: Design of steel structures, Thomas Telford, London.
Guo, T., Xu, W., Song, L., Wei, L. (2014). “Seismic-isolation retrofits of school buildings: Practice in China after recent devastating earthquakes.” J. Perform. Constr. Facil., 96–107.
Karayannis, C. G., and Favvata, M. J. (2005). “Earthquake-induced interaction between adjacent reinforced concrete structures with non-equal heights.” Earthquake Eng. Struct. Dyn., 34(1), 1–20.
Matlock, H. (1970). “Correlations for design of laterally loaded piles in soft clay.” Proc., 2nd Annual Offshore Technology Conf., OTC, Houston.
Meyer, B. J., and Reese, L. C. (1979). “Analysis of single piles under lateral loading.” Center for Transportation Research, Univ. of Texas at Austin, Austin, TX.
Reese, L. C., Cox, W. R., and Koop, F. D. (1974). “Analysis of laterally loaded piles in sand.” Proc., 6th Offshore Tech. Conf., OTC, Houston, 473–483.
Verderame, G. M., Stella, A., and Cosenza, E. (2001). “Le proprietà meccaniche degli acciai impiegati nelle strutture in c.a. realizzate negli anni ‘60.” Proc., 10th Italian National Congress on Earthquake Engineering, ANIDIS, Rome (in Italian).
Information & Authors
Information
Published In
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Oct 8, 2015
Accepted: Jun 3, 2016
Published online: Jul 19, 2016
Discussion open until: Dec 19, 2016
Published in print: Apr 1, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.