The seismic performance assessment of non-structural components is a quite relevant topic in performance-based seismic engineering. Seismic standards all over the world require “safe” non-structural elements, i.e. providing “adequate” seismic capacity in comparison with the seismic demand. Internal partition kits (IPK), for long neglected in the seismic behaviour evaluation of buildings, are nowadays largely investigated by the scientific community due to the impact on the overall performance of the building hosting them, both from the safety and economic losses point of view. The seismic capacity assessment of such components is generally pursued by means of experimental tests due the large variability of IPK configurations. On the other hand, harmonized approaches for seismic qualification of IPK are not currently available. The present work deals with an experimental campaign carried out on three different kinds of IPK: glass, wood and glass-wood mixed partition. Each of these was subjected to in-plane “crescendo” tests and out-of-plane dynamic tests. Inter-story drift and acceleration in the centre of gravity of the tested samples are chosen as engineering demand parameters (EDP) in order to assess the in-plane and out-of-plane seismic performances, respectively. The damages recorded during the tests are related to the corresponding inter-story drift and acceleration and then are compared to three fixed values of damage, chosen as damage limit states (DS1=minor damage, DS2=moderate damage, DS3=major damage). An innovative seismic test facility, located at the Construction Technologies Institute (ITC) of the Italian National Research Council (CNR), was used to carry out the seismic tests. New loading protocols are proposed with respect to the existing “crescendo” test of AAMA 501.4 (2009) and the shaking table tests of AC156 (2020). The experimental results will be also the basis for the definition of assessment methods for the seismic qualification of IPK to be introduced in harmonized European technical specifications.
INTERNAL PARTITION KITS: TOWARD A HARMONIZED APPROACH FOR THE ASSESSMENT OF THE SEISMIC CAPACITY BY EXPERIMENTAL TESTS
Orsola Coppola
;Laura Nironi;Giuseppina De Luca;Annalisa Franco;Antonio Bonati
2024
Abstract
The seismic performance assessment of non-structural components is a quite relevant topic in performance-based seismic engineering. Seismic standards all over the world require “safe” non-structural elements, i.e. providing “adequate” seismic capacity in comparison with the seismic demand. Internal partition kits (IPK), for long neglected in the seismic behaviour evaluation of buildings, are nowadays largely investigated by the scientific community due to the impact on the overall performance of the building hosting them, both from the safety and economic losses point of view. The seismic capacity assessment of such components is generally pursued by means of experimental tests due the large variability of IPK configurations. On the other hand, harmonized approaches for seismic qualification of IPK are not currently available. The present work deals with an experimental campaign carried out on three different kinds of IPK: glass, wood and glass-wood mixed partition. Each of these was subjected to in-plane “crescendo” tests and out-of-plane dynamic tests. Inter-story drift and acceleration in the centre of gravity of the tested samples are chosen as engineering demand parameters (EDP) in order to assess the in-plane and out-of-plane seismic performances, respectively. The damages recorded during the tests are related to the corresponding inter-story drift and acceleration and then are compared to three fixed values of damage, chosen as damage limit states (DS1=minor damage, DS2=moderate damage, DS3=major damage). An innovative seismic test facility, located at the Construction Technologies Institute (ITC) of the Italian National Research Council (CNR), was used to carry out the seismic tests. New loading protocols are proposed with respect to the existing “crescendo” test of AAMA 501.4 (2009) and the shaking table tests of AC156 (2020). The experimental results will be also the basis for the definition of assessment methods for the seismic qualification of IPK to be introduced in harmonized European technical specifications.File | Dimensione | Formato | |
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