Scipediacontent: Scipediacontent moved page Draft Content 399049504 to Baggio et al 2021a

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Scipediacontent moved page Draft Content 399049504 to Baggio et al 2021a

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== Abstract ==

Dynamic monitoring is a well-established technique used to gain information on
the global health of constructions. In particular, ambient vibration tests have achieved
important results in the dynamic characterization of modal parameters. Several
techniques and instrumentations are currently available, however the accuracy of these
results is often unquestioned. The mutual validation between different modal analysis
techniques is an important procedure to assess the reliability of the results. In the present
paper the ambient vibration tests performed on the so-called ‘Temple of Minerva Medica’
in Rome considering different techniques and instrumentations will be described and
compared. While it is referred to as the Temple of Minerva Medica, the structure is actually a
ruined decagonal nymphaeum in opus latericium that dates to the 4th century AD. Today, the
construction is located between the main central train station (Roma Termini) and the local
tram way. Ambient vibration data were acquired during different campaigns [1] to
characterize the effects of the vibrations and the modal parameters of the structure. This
work deals with the data collected on the 11th of July 2019 within the project “Tecnologie
per il miglioramento della Sicurezza e la ricostruzione dei centri Storici in area sismica”
coordinated by DTC Lazio (Distretto Tecnologico beni e attività culturali). The
instrumentation comprised of several seismographs equipped with triaxial velocimeters
and piezoelectric accelerometers. A variety of techniques were applied to process the
acquired vibration data in order to extract the modal parameters of the studied structure
including PolyMAX, FDD, EFDD, CC-SSI, HVSR and FRF. Comparison of the modal
parameters obtained by each different technique was considered to provide indications on the
reliability of the instruments.

== Full document ==
<pdf>Media:Draft_Content_399049504p925.pdf</pdf>
== References ==

[1] I. Roselli, V. Fioriti, M. Mongelli, I. Bellagamba and G. De Canio, "Mutual Validation between different Modal Analysis Techniques for Dynamic Identification of the so-called Temple of Minerva Medica," in IOP Conf. Series: Materials Science and Engineering, Rome, 2018.

[2] C. Baggio, V. Sabbatini and S. Santini, "Model Updating of a Masonry Historical Church based on Operational Modal Analysis: the case study of San Filippo Neri in Macerata," in 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Crete, Greece, 24–26 June 2019.

[3] M. Barbera and M. Magnani Cianetti, Minerva Medica. Ricerche, scavi e restauri, Milano, Rome: Electra, 2019.

[4] M. Barbera, S. Di Pasquale and P. Palazzo, "Roma, studi e indagini sul cd. Tempio di Minerva Medica," The Journal of Fasti Online, 2007.

[5] M. Barbera, M. Magnani Cianetti and S. Barrano, Da Massenzio a Costantino: le indagini in corso nel c.d. Tempio di Minerva Medica, Bari: Edipuglia, 2014.

[6] RomanoImpero, "romanoimpero.com," 2015.

[7] I. Roselli, A. Tatì, V. Fioriti, I. Bellagamba, M. Mongelli, R. Romano, G. De Canio, M. Barbera and M. Magnani Cianetti, "Integrated approach to structural diagnosis by non-destructive techniques: the case of the Temple of Minerva Medica," Acta IMEKO, vol. 7, no. 3, 2018.

[8] V. Fioriti, I. Roselli, A. Tatì, R. Romano and G. De Canio, "Motion Magnification Analysis for structural monitoring of ancient constructions," Measurement, vol. 129, pp. 375-380 , 2018.

[9] I. Roselli, V. Fioriti, I. Bellagamba, M. Mongelli, A. Tatì, M. Barbera, M. Magnani Cianetti and G. De Canio, "Impact of traffic vibration on the Temple of Minerva Medica, Rome: preliminary study within the CO.B.RA. Project," International Journal of Heritage Architecture, vol. 2, no. 1, pp. 102-114, 2018.

[10] C. Rainieri, Operational Modal Analysis for Seismic Protection of Structures, Napoli: University of Naples "Federico II", PhD Thesis, 2008.

[11] Siemens, "Simcenter Testlab 18.0," 2018.

[12] Siemens, "Modal Analysis," in LMS Test.Lab Manual, pp. Section 1.3.3, Polymax pg. 30 – Section 6.2, MAC, MPC e MPD pg. 228 - Section 8.20, The Multi-Run Modal Analysis pg. 464.

[13] B. D. Allemang, "A correlation coefficient for modal vector analysis," in 1st international modal analysis conference, Orlando, 1982.

[14] J. S. Bendat and A. G. Piersol, "Engineering applications of correlation and spectral analysis," New York, Wiley-Interscience, 1980.

[15] M. R. Gallipoli, M. Mucciarelli and M. Vona, "Empirical estimate of fundamental frequencies and damping for Italian buildings," Earthquake Engineering and Structural Dynamics, vol. 8, no. 38, pp. 973-988, 2009.

[16] Midas IT, "Midas Gen v 1.1," Midasoft Inc., 2019.

[17] Ministero delle Infrastrutture e dei Trasporti, "Circolare n. 617," in Istruzioni per l'applicazione delle "Nuove noerme techniche per le costruzioni" di cui al decreto ministeriale 14 gennaio 2008 (GI n. 47 del 26-2-2009, Suppl. Ordinario n. 27), Roma, Gazzetta Ufficiale, 2009, p. 447.

[18] R. Bricker and C. E. Ventura, "Introduction to Operational Modal Analysis," Wiley Online Library, 2015.

[19] K. V. Yuen and L. S. Katafygiotis, "Bayesian time-domain approach for modal updating using ambient data," Probabilistic Engineering Mechanics, vol. 3, no. 16, pp. 219-231, 2001.

[20] N. Møller, H. Herlufsen and S. Gade, "Stochastic Subspace Identification Techniques in Operational Modal Analysis," in Proc. 1st Int. Operational Modal Analysis Conference, Copenhagen, Denmark, 2005.

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Baggio et al 2021a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 399049504 to Baggio et al 2021a

Scipediacontent: Created page with "== Abstract == Dynamic monitoring is a well-established technique used to gain information on the global health of constructions. In particular, ambient vibration..."