Publication Date:
2017-04-04
Description:
This paper presents the results of different numerical analyses (nonlinear dynamic FEM
simulations) regarding the monumental buildings in Ripabottoni village (Campobasso,
southern Italy), which were damaged by the 2002 Molise earthquake. In particular,
the church of S. Maria Assunta, for which typological data and an exhaustive damage
survey are available, is taken into account. Some preliminary studies [Spallarossa et al.,
2004], which correlate the waveform of the available recordings from aftershocks and the
surveyed damage mechanism (due to the crushing of the vertical structural elements),
suggested that a feasible explanation for this particular damage pattern does not involve
only the intrinsic vulnerability of this type of buildings, but deals also with the high
energy content in the high frequency range observed in the vertical component of the
seismic events. In order to understand the structural damage patterns surveyed, synthetic
accelerograms, representative of the main shock (Ml = 5.4 on 31 October 2002), were
computed. The Empirical Green Function (EGF) method was applied to compute the
seismic input adopted in the nonlinear dynamic analyses that we performed for the
church of S. Maria Assunta. The results confirm that the observed damage pattern
cannot totally be put down to the vulnerability of the building, but the particular
characteristics of the seismic action played a fundamental role in determining it.
Description:
Published
Description:
381-409
Description:
reserved
Keywords:
Monumental buildings;
;
nonlinear dynamic simulations;
;
vertical ground motion;
;
2002 Molise earthquake.
;
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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