Molitierno, Carmine (2024) Pseudo-dynamic tests for seismic performance assessment: infrastructure development, verification and test reliability. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Pseudo-dynamic tests for seismic performance assessment: infrastructure development, verification and test reliability |
| Autori: | Autore Email Molitierno, Carmine carmine.molitierno@unina.it |
| Data: | 5 Marzo 2024 |
| Numero di pagine: | 249 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Strutture per l'Ingegneria e l'Architettura |
| Dottorato: | Ingegneria strutturale, geotecnica e rischio sismico |
| Ciclo di dottorato: | 36 |
| Coordinatore del Corso di dottorato: | nome email Iervolino, Iunio iunio.iervolino@unina.it |
| Tutor: | nome email Prota, Andrea [non definito] Del Vecchio, Ciro [non definito] |
| Data: | 5 Marzo 2024 |
| Numero di pagine: | 249 |
| Parole chiave: | infilled RC frames, seismic assessment, nonlinear time history, substructuring, pseudo-dynamic testing, test reliability |
| Settori scientifico-disciplinari del MIUR: | Area 08 - Ingegneria civile e Architettura > ICAR/09 - Tecnica delle costruzioni |
| Depositato il: | 15 Mar 2024 09:59 |
| Ultima modifica: | 13 Apr 2026 08:03 |
| URI: | http://www.fedoa.unina.it/id/eprint/15557 |
Abstract
The existing infilled reinforced concrete (RC) buildings belonging to the Mediterranean area are vulnerable to moderate-to-severe earthquakes. This is demonstrated by the damage on structural and non-structural components observed in the aftermath of recent seismic events. In this context, the experimental investigations of seismic performances are crucial to enhance the knowledge on the mechanical response and to develop/validate innovative strengthening solutions. In addition, the test results provide a reliable data for the calibration of numerical building models aimed at predicting earthquake damage. The mechanical response is often characterized by a brittle response of the infills or the structural system, thus experimental tests on full-scale prototype are needed to correctly reproduce damage propagation and the hysteretic response. However, only a few tests on full-scale infilled RC multi-storey structures are carried out because of the limitation in the testing facilities. Recently, a pseudo dynamic (PsD) testing framework has been implemented at the Laboratory of testing on real-scale STRUcTures (LaSTRUT) within the center CeSMA of the University of Naples Federico II to enable researchers to conduct experiments on full-scale building prototypes or subassemblies. This thesis presents the testing infrastructure and the control system properly developed to conduct PsD tests. A four-storey infilled RC building damaged by the 2009 L’Aquila earthquake is selected as case study. A reference perimetral frame, the most damaged, is selected and faithfully reproduced in the laboratory environment to conduct the tests considering three different infill-to-frame connections. The substructuring approach and the testing set-up are presented and discussed. Nonlinear models of the building and the frame are proposed and experimentally calibrated. They were used to confirm the results of experimental tests and to extent the results at building level. Finally, the research activities conducted at the European Laboratory of Structural Assessment (ELSA) at the Joint Research Centre (JRC) of the European Commission on the effects of errors on the reliability of the tests are presented and a proposal to improve the UNINA PsD testing framework is made.
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