A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Base Isolation of Rocking Systems: A Rotation-Based Design Procedure
https://orcid.org/http://orcid.org/0000-0002-1266-9065
https://orcid.org/http://orcid.org/0000-0002-6195-839X
https://orcid.org/http://orcid.org/0000-0003-3184-8189
https://orcid.org/http://orcid.org/0000-0003-1652-942X
When subjected to earthquakes some elements or structures behave like rocking rigid bodies. Art objects, computer servers and electrical equipment are frequently included in this category. This study is motivated by the need to protect these non-structural elements from earthquakes and base isolation technology was proven to be a viable option for this purpose.
The dynamic model of a rocking rigid block placed on a base isolation device is summarized here. Then, a rotation-based procedure to design this type of protection system for rigid rocking bodies is proposed, and the main steps are illustrated. The procedure is aimed at designing base isolation devices for rocking bodies, in order to activate a specified maximum rotation during the code-level earthquake event.
The presented rotation-based procedure is particularly suitable for large structure / objects, as long as small oscillations are acceptable. Indeed, as the block size increases, the capacity of the system also increases. The main advantage of this procedure is that the maximum displacement of the isolator can be reduced compared to the case where rotations are not allowed, hence rocking motion is not initiated. Despite this advantage, the design procedure allows the rigid body to rock and, thus, to impact the base.
Base Isolation of Rocking Systems: A Rotation-Based Design Procedure
https://orcid.org/http://orcid.org/0000-0002-1266-9065
https://orcid.org/http://orcid.org/0000-0002-6195-839X
https://orcid.org/http://orcid.org/0000-0003-3184-8189
https://orcid.org/http://orcid.org/0000-0003-1652-942X
When subjected to earthquakes some elements or structures behave like rocking rigid bodies. Art objects, computer servers and electrical equipment are frequently included in this category. This study is motivated by the need to protect these non-structural elements from earthquakes and base isolation technology was proven to be a viable option for this purpose.
The dynamic model of a rocking rigid block placed on a base isolation device is summarized here. Then, a rotation-based procedure to design this type of protection system for rigid rocking bodies is proposed, and the main steps are illustrated. The procedure is aimed at designing base isolation devices for rocking bodies, in order to activate a specified maximum rotation during the code-level earthquake event.
The presented rotation-based procedure is particularly suitable for large structure / objects, as long as small oscillations are acceptable. Indeed, as the block size increases, the capacity of the system also increases. The main advantage of this procedure is that the maximum displacement of the isolator can be reduced compared to the case where rotations are not allowed, hence rocking motion is not initiated. Despite this advantage, the design procedure allows the rigid body to rock and, thus, to impact the base.
Base Isolation of Rocking Systems: A Rotation-Based Design Procedure
https://orcid.org/http://orcid.org/0000-0002-1266-9065
https://orcid.org/http://orcid.org/0000-0002-6195-839X
https://orcid.org/http://orcid.org/0000-0003-3184-8189
https://orcid.org/http://orcid.org/0000-0003-1652-942X
When subjected to earthquakes some elements or structures behave like rocking rigid bodies. Art objects, computer servers and electrical equipment are frequently included in this category. This study is motivated by the need to protect these non-structural elements from earthquakes and base isolation technology was proven to be a viable option for this purpose.
The dynamic model of a rocking rigid block placed on a base isolation device is summarized here. Then, a rotation-based procedure to design this type of protection system for rigid rocking bodies is proposed, and the main steps are illustrated. The procedure is aimed at designing base isolation devices for rocking bodies, in order to activate a specified maximum rotation during the code-level earthquake event.
The presented rotation-based procedure is particularly suitable for large structure / objects, as long as small oscillations are acceptable. Indeed, as the block size increases, the capacity of the system also increases. The main advantage of this procedure is that the maximum displacement of the isolator can be reduced compared to the case where rotations are not allowed, hence rocking motion is not initiated. Despite this advantage, the design procedure allows the rigid body to rock and, thus, to impact the base.
Base Isolation of Rocking Systems: A Rotation-Based Design Procedure
Lecture Notes in Civil Engineering
Sadan, Bahadir (editor) / Tuzun, Cuneyt (editor) / Erdik, Mustafa (editor) / Destro Bisol, Giacomo (author) / DeJong, Matthew (author) / Liberatore, Domenico (author) / Sorrentino, Luigi (author)
World Conference on Seismic Isolation ; 2023 ; Antalya, Türkiye
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Chapter: 25 ; 313-320
2024-09-29
8 pages
Article/Chapter (Book)
Electronic Resource
English
Displacement-Based Design Procedure , Rocking-Body Dynamics , Rocking Control , Overturning Stability of Art Objects , Seismic Isolation of Non-Structural Elements Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Fire Science, Hazard Control, Building Safety , Building Construction and Design , Cultural Heritage
Base Isolation Technology for Rocking Statues: A Simplified Design Procedure
| Springer Verlag | 2023
| BASE | 2017
The Dynamics of Rocking Isolation
| British Library Conference Proceedings | 2018