Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia
Joint Authors
De Domenico, Dario
Ricciardi, Giuseppe
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-24, 24 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-19
Country of Publication
Egypt
No. of Pages
24
Main Subjects
Abstract EN
Existing civil engineering structures having strategic importance, such as hospitals, fire stations, and power plants, often do not comply with seismic standards in force today, as they were designed and built based on past structural guidelines.
On the other hand, due to their special importance, structural integrity of such buildings is of vital importance during and after earthquakes, which puts demands on strategies for their seismic protection.
In this regard, seismic base isolation has been widely employed; however, the existing limited seismic joint between adjacent buildings may hamper this application because of the large displacements concentrated at the isolation floor.
In this paper, we compare two possible remedies: the former is to provide supplemental damping in conventional base isolation systems and the latter consists in a combination of base isolation with supplemental rotational inertia.
For the second strategy, a mechanical device, called inerter, is arranged in series with spring and dashpot elements to form the so-called tuned-mass-damper-inerter (TMDI) directly connected to an isolation floor.
Several advantages of this second system as compared to the first one are outlined, especially with regard to the limitation of floor accelerations and interstory drifts, which may be an issue for nonstructural elements and equipment, in addition to disturbing occupants.
Once the optimal design of the TMDI is established, possible implementation of this system into existing structures is discussed.
American Psychological Association (APA)
De Domenico, Dario& Ricciardi, Giuseppe. 2018. Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-24.
https://search.emarefa.net/detail/BIM-1116316
Modern Language Association (MLA)
De Domenico, Dario& Ricciardi, Giuseppe. Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia. Advances in Civil Engineering No. 2018 (2018), pp.1-24.
https://search.emarefa.net/detail/BIM-1116316
American Medical Association (AMA)
De Domenico, Dario& Ricciardi, Giuseppe. Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-24.
https://search.emarefa.net/detail/BIM-1116316
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116316