Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Observed Seismic Behaviour of Base Isolation Systems in Italy
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-1532-799X
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0001-9279-9144
The observed behaviour of seismically isolated structures in different countries allowed testifying the suitability of this technique to protect structures against strong earthquakes. In Italy, up to now, base isolated buildings have been subjected only to low energy earthquakes. This paper describes and compares the observed behaviours under a low energy earthquake of three buildings with different isolation systems. In the first one, seismically isolated by means of HDRBs, the structure showed resonance frequencies higher than the design ones but the decoupling was always guaranteed also thanks to the high stiffness of the superstructure. In the second one, seismically isolated with CSSs, the onset of motion was governed by the friction, which was much higher than the design one. Finally, in a building seismically isolated with HDRBs and SDs, the onset of motion was governed by the SDs and the successive motion by the HDRBs.
Observed Seismic Behaviour of Base Isolation Systems in Italy
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-1532-799X
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0001-9279-9144
The observed behaviour of seismically isolated structures in different countries allowed testifying the suitability of this technique to protect structures against strong earthquakes. In Italy, up to now, base isolated buildings have been subjected only to low energy earthquakes. This paper describes and compares the observed behaviours under a low energy earthquake of three buildings with different isolation systems. In the first one, seismically isolated by means of HDRBs, the structure showed resonance frequencies higher than the design ones but the decoupling was always guaranteed also thanks to the high stiffness of the superstructure. In the second one, seismically isolated with CSSs, the onset of motion was governed by the friction, which was much higher than the design one. Finally, in a building seismically isolated with HDRBs and SDs, the onset of motion was governed by the SDs and the successive motion by the HDRBs.
Observed Seismic Behaviour of Base Isolation Systems in Italy
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-1532-799X
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0001-9279-9144
The observed behaviour of seismically isolated structures in different countries allowed testifying the suitability of this technique to protect structures against strong earthquakes. In Italy, up to now, base isolated buildings have been subjected only to low energy earthquakes. This paper describes and compares the observed behaviours under a low energy earthquake of three buildings with different isolation systems. In the first one, seismically isolated by means of HDRBs, the structure showed resonance frequencies higher than the design ones but the decoupling was always guaranteed also thanks to the high stiffness of the superstructure. In the second one, seismically isolated with CSSs, the onset of motion was governed by the friction, which was much higher than the design one. Finally, in a building seismically isolated with HDRBs and SDs, the onset of motion was governed by the SDs and the successive motion by the HDRBs.
Observed Seismic Behaviour of Base Isolation Systems in Italy
Lecture Notes in Civil Engineering
Cimellaro, Gian Paolo (Herausgeber:in) / Buffarini, Giacomo (Autor:in) / Clemente, Paolo (Autor:in) / Ianniruberto, Ugo (Autor:in) / Ormando, Chiara (Autor:in) / Scafati, Federico (Autor:in)
World Conference on Seismic Isolation ; 2022 ; Turin, Italy
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Kapitel: 50 ; 599-610
07.01.2023
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Seismic isolation , Observed seismic behaviour , Low energy earthquake , Rubber bearings , Flat surface sliders , Curved surface sliders Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Fire Science, Hazard Control, Building Safety , Building Construction and Design , Cultural Heritage