An insight on the influence of damping in seismic isolation

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

Figueiredo, E (Author) Other; Rui Carneiro de Barros (Author) FEUP

Conference proceedings International

Title: Proceedings of the 11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007

11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007

St. Julians, 18 September 2007 through 21 September 2007

Indexing

Scopus - 1 Citation

Other information

Authenticus ID: P-008-0HK

Abstract (EN): The purpose of this paper is to clarify the influence of damping in seismic isolation, limiting some current simplifications in the use of classical modal analysis with uncoupled equations and also limiting peak responses of isolated structures located at near-fault sites. The well known 2-DOF system for modelling base isolation is used to carry out the seismic analysis under several suitable real earthquakes, with which some conclusions are proposed. Firstly, at high levels of damping in the isolator system the equations of motion cannot remain uncoupled. Secondly, the addition of damping in the isolator system while controlling the isolator displacements has the counter effect of increasing the inter storey drift and floor total accelerations. © 2007 Civil-Comp Press.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12