Physical model for dynamic analysis of structures with FPS isolators

Almazan, JL; de la Llera, JC

Abstract

This article presents a physical model for frictional pendulum isolators (FPS) that is ready to be implemented in most commercial software. The model is capable of accounting for effects such as large deformations, sticking, and uplift and impact by sensing the normal loads in the isolators through a gap element. Sticking has been incorporated into the model by extending the Park-Wen hysteretic model to the case of large deformations. The proposed model has been tested against a theoretically 'exact' formulation leading to essentially identical results. To facilitate its use, the physical FPS model has been cast into a typical non-linear structural element format, i.e. with deformation as input and restoring force as output. Examples of a building and a bridge have been chosen to show the potential of the element and to provide further insight into the earthquake response of structures with FPS isolators; in particular, in aspects such as the orientation in placement of the isolator, sticking, P - ?, and other large deformation effects. © 2003 John Wiley and Sons, Ltd.

Más información

Título según WOS: Physical model for dynamic analysis of structures with FPS isolators
Título según SCOPUS: Physical model for dynamic analysis of structures with FPS isolators
Título de la Revista: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
Volumen: 32
Número: 8
Editorial: Wiley
Fecha de publicación: 2003
Página de inicio: 1157
Página final: 1184
Idioma: English
URL: http://doi.wiley.com/10.1002/eqe.266
DOI:

10.1002/eqe.266

Notas: ISI, SCOPUS