A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shake Table Tests of a Bridge Model with Different Seismic Isolation Devices
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-4984-2156
https://orcid.org/http://orcid.org/0000-0002-1013-2512
https://orcid.org/http://orcid.org/0000-0002-8312-0539
https://orcid.org/http://orcid.org/0000-0003-4662-9106
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-4167-1049
https://orcid.org/http://orcid.org/0000-0001-8167-1065
https://orcid.org/http://orcid.org/0009-0004-8374-3957
The importance of improving the surveillance and maintenance of road infrastructures has become an issue in most countries in the world. Actually, most bridges were built several years ago, when traffic loads were different from the current ones and seismic actions were often neglected. Today, one of the main goals is the identification of suitable seismic retrofit interventions for existing bridges. A scaled span of a real viaduct was tested on a shake table in order to study the efficiency of different isolation systems, composed of HDRBs and SDs or CSSs, in comparison with the original rubber support systems. Different sensors were used to measure accelerations and displacements of the structure under increasing seismic input and to point out the different experimental behavior of the seismically isolated configurations. HDRBs + SDs allowed to obtain significant reduction in accelerations and no residual displacements, while the performances of CSSs were improved by means of lubrication.
Shake Table Tests of a Bridge Model with Different Seismic Isolation Devices
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-4984-2156
https://orcid.org/http://orcid.org/0000-0002-1013-2512
https://orcid.org/http://orcid.org/0000-0002-8312-0539
https://orcid.org/http://orcid.org/0000-0003-4662-9106
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-4167-1049
https://orcid.org/http://orcid.org/0000-0001-8167-1065
https://orcid.org/http://orcid.org/0009-0004-8374-3957
The importance of improving the surveillance and maintenance of road infrastructures has become an issue in most countries in the world. Actually, most bridges were built several years ago, when traffic loads were different from the current ones and seismic actions were often neglected. Today, one of the main goals is the identification of suitable seismic retrofit interventions for existing bridges. A scaled span of a real viaduct was tested on a shake table in order to study the efficiency of different isolation systems, composed of HDRBs and SDs or CSSs, in comparison with the original rubber support systems. Different sensors were used to measure accelerations and displacements of the structure under increasing seismic input and to point out the different experimental behavior of the seismically isolated configurations. HDRBs + SDs allowed to obtain significant reduction in accelerations and no residual displacements, while the performances of CSSs were improved by means of lubrication.
Shake Table Tests of a Bridge Model with Different Seismic Isolation Devices
https://orcid.org/http://orcid.org/0000-0003-0762-5444
https://orcid.org/http://orcid.org/0000-0003-1430-6177
https://orcid.org/http://orcid.org/0000-0003-4984-2156
https://orcid.org/http://orcid.org/0000-0002-1013-2512
https://orcid.org/http://orcid.org/0000-0002-8312-0539
https://orcid.org/http://orcid.org/0000-0003-4662-9106
https://orcid.org/http://orcid.org/0000-0002-6031-4437
https://orcid.org/http://orcid.org/0000-0003-4167-1049
https://orcid.org/http://orcid.org/0000-0001-8167-1065
https://orcid.org/http://orcid.org/0009-0004-8374-3957
The importance of improving the surveillance and maintenance of road infrastructures has become an issue in most countries in the world. Actually, most bridges were built several years ago, when traffic loads were different from the current ones and seismic actions were often neglected. Today, one of the main goals is the identification of suitable seismic retrofit interventions for existing bridges. A scaled span of a real viaduct was tested on a shake table in order to study the efficiency of different isolation systems, composed of HDRBs and SDs or CSSs, in comparison with the original rubber support systems. Different sensors were used to measure accelerations and displacements of the structure under increasing seismic input and to point out the different experimental behavior of the seismically isolated configurations. HDRBs + SDs allowed to obtain significant reduction in accelerations and no residual displacements, while the performances of CSSs were improved by means of lubrication.
Shake Table Tests of a Bridge Model with Different Seismic Isolation Devices
Lecture Notes in Civil Engineering
Sadan, Bahadir (editor) / Tuzun, Cuneyt (editor) / Erdik, Mustafa (editor) / Ormando, Chiara (author) / Clemente, Paolo (author) / Roselli, I. (author) / Saitta, F. (author) / Fioriti, V. (author) / Cataldo, A. (author) / Buffarini, G. (author)
World Conference on Seismic Isolation ; 2023 ; Antalya, Türkiye
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Chapter: 9 ; 101-117
2024-09-29
17 pages
Article/Chapter (Book)
Electronic Resource
English
Seismically isolated bridges , Shake Table Tests , Friction pendulum , Elastomeric isolators Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Fire Science, Hazard Control, Building Safety , Building Construction and Design , Cultural Heritage
Shake table tests on a mass eccentric model with base isolation
| Online Contents | 2003