Performance sismiche degli elementi non-strutturali: considerazioni sulla domanda sismica e sui dati sperimentali attualmente disponibili
Abstract
I danneggiamenti osservati durante i passati terremoti hanno messo in evidenza come gli elementi non-strutturali rappresentino una delle maggiori problematiche sia dal punto di vista delle perdite economiche che dell’immediata funzionalità delle strutture nell’emergenza post-sisma. Per tale motivo, gli elementi non-strutturali rappresentano negli ultimi anni un importante filone della ricerca nell’ambito dell’ingegneria sismica. Nell’ottica del performance-based design ed in particolare nella valutazione delle perdite attese, gli elementi non-strutturali rivestono un ruolo fondamentale. Nel presente lavoro si propone una panoramica delle attuali conoscenze sia dal punto di vista degli studi sperimentali focalizzati alla definizione della fragilità sismica degli elementi non-strutturali che della valutazione della domanda sismica, il tutto nell’ottica del performance-based design.
Riferimenti bibliografici
Villaverde R. (1997) - Seismic design of secondary structures: state of the art, Journal of Structural Engineering ASCE, 123(8) 1011–1019.
Miranda E., Taghavi S. (2003) - Estimation of Seismic Demands on Acceleration-sensitive Nonstructural Components in Critical Facilities,
Proceedings of the Seminar on Seismic Design, Performance, and Retrofit of Nonstructural Components in Critical Facilities, ATC 29-2,
Filiatrault A., Sullivan T.J. (2014) - Performance-based seismic design of nonstructural building components: The next frontier of earthquake
engineering, Earthquake engineering and earthquake vibration 13 (1) 17-46.
Miranda E., Mosqueda G., Retamales R., Pekcan G. (2012) - Performance of nonstructural components during the 27 February 2010 Chile
Earthquake, Earthquake Spectra 28(S1) S453-S471.
Salvatore W., Caprili S., Barberi V. (2009) - Rapporto dei danni provocati dall’evento sismico del 6 Aprile sugli edifici scolastici del centro
storico dell’Aquila”, available online: http://www.reluis.it/
Ricci P., De Luca F., Verderame G.M. (2011) - 6th April 2009 L’Aquila earthquake, Italy: reinforced concrete building performance, Bulletin
of earthquake engineering 9 (1) 285-305.
Ercolino M., Petrone C., Coppola O., Magliulo G. (2012) - Report sui danni registrati a San Felice sul Panaro (Mo) in seguito agli eventi
sismici del 20 e 29 maggio 2012 - v1.0, available on line: http://www.reluis.it/.
FEMA P-58 (2012) - Seismic Performance Assessment of Buildings, Federal Emergency Management Agency, Washington, DC.
FEMA 461 (2007) - Interim testing protocols for determining the seismic performance characteristics of structural and nonstructural components,
Federal Emergency Management Agency, Washington, DC.
Davies R., Retamales R., Mosqueda G., Filiatrault A. (2011) - Experimental seismic evaluation, model parameterization and effects of
cold-formed steel-framed gypsum partition walls on the seismic performance of an essential facility, Report MCEER-11-0005.
Petrone C., Magliulo G., Manfredi G. (2014) - Shake table tests for the seismic assessment of hollow brick internal partitions, Engineering
Structures 72:203-214.
Sassun K., Sullivan T.J., Morandi P., Cardone D. (2015) - Characterising the in-plane seismic performance of infill masonry, Bulletin of the
New Zealand Society for Earthquake Engineering 49(1).
Badillo-Almaraz H., Whittker A.S., Reinhorn A.M., Cimellaro G.P. (2006) - Seismic fragility of suspended ceiling systems, Report MCEER-
-0001.
Magliulo G., Pentangelo V., Maddaloni G., Capozzi V., Petrone C., Lopez P., Talamonti R., Manfredi G. (2012) - Shake table tests for seismic
assessment of suspended continuos ceilings, Bulletin of Earthquake Engineering 10(6):1819-1832.
Pourali A., Dhakal R.P., MacRae G.A. (2015) - Shake table tests of perimeter-fixed suspended ceilings, Proceeding of the 2015 NZSEE
Conference.
Tian Y., Filiatrault A., Mosqueda G. (2013) - Experimental seismic study of pressurized fire sprinkler piping systems, Report MCEER-13-0001.
O’Brien W.C., Memari A.M., Kremer P.A., Behr R.A. (2012) - Fragility curves for architectural glass in stick-built glazing systems, Earthquake
Spectra 28(2):639-665.
Porter K., Johnson G., Sheppard R., Bachman R. (2010) - Fragility of Mechanical, Electrical, and Plumbing Equipment, Earthquake Spectra
(2):451-472.
Lopez Garcia D., Soong T.T. (2003) - Sliding fragility of block-type non-structural components. Part 1: Unrestrained components, Earthquake
Engineering & Structural dynamics 32(1):111-129.
Lopez Garcia D., Soong T.T. (2003) - Sliding fragility of block-type non-structural components. Part 2: Restrained components, Earthquake
Engineering & Structural dynamics 32(1):131-149.
UBC, Uniform Building Code (1964) - 6th ed. International Conference of Building Officials, Whittier Narrow.
FEMA (2012) - FEMA E-74 Reducing the risks of nonstructural earthquake damage - A practical guide.
Presidenza del Consiglio dei Ministri, Linee guida per la riduzione della vulnerabilità di elementi non strutturali, arredi ed impianti (2009).
CEN, Eurocode 8 - Design provisions for earthquake resistant structures, EN-1998-1:2004 (2004) - Comite Europeen de Normalization,
Brussels, Belgium.
ASCE (2013) - Minimum design loads for buildings and other structures, ASCE/SEI Standard 7-10, American Society of civil engineers, Reston.
Sullivan T.J., Calvi P.M., Nascimbene R. (2013) - Towards improved floor spectra estimates for seismic design, Earthquakes and Structures
(1):109-132.
Medina R., Sankaranarayanan R., Kingston K.M. (2006) - Floor response spectra for light components mounted on regular moment-resisting
frame structures, Engineering Structures 28:1927-1940.
Lin J., Mahin S. (1985) - Seismic response of light subsystems on inelastic structures, Journal of Structural Engineering 111(2):400-417.
Sewell R.T., Cornell C.A., Toro G.R., McGuire R.K., Kassawara R.P., Sing A. (1988) - Factors influencing floor response spectra in nonlinear
multi-degree-of-freedom structures, Report N082, Stanford University.
Politopoulos I., Feau C. (2007) - Some aspects of floor spectra of 1DOF nonlinear primary structures, Earthquake Engineering & Structural
Dynamics 36(8):975-993.
Politopoulos I. (2010) - Floor spectra of MDOF nonlinear structures, Journal of Earthquake Engineering 14(5):726-742.
Rodriguez M.E., Restrepo J.I., Carr A.J. (2002) - Earthquake-induced floor horizontal accelerations in buildings, Earthquake Engineering
and Structural Dynamics 31(3):693-718.
Singh M., Moreschi L., L. Suarez L., Matheu E. (2006) - Seismic design forces II: flexible nonstructural components, Journal of Structrural
Engineering 132(10):1533-1542.
Singh M., Moreschi L., Suarez L., Matheu E. (2006) - Seismic design forces I: rigid nonstructural components, Journal of Structrural Engineering
(10):1524-1532.
Petrone C., Magliulo G., Manfredi G. (2015) - Seismic demand on light acceleration-sensitive nonstructural components in European reinforced
concrete buildings, Earthquake engineering & Structural dynamics 8(10):1203-1217.
Calvi P.M., Sullivan T.J. (2014) - Estimating floor spectra in multiple degree of freedom systems, Earthquake and Structures 7(1):17-38.
