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Simplified method for seismic analysis of structures with FPS isolators - third generation

Abstract:

There are several models that define the nonlinear behavior of the triple friction pendulum isolator; one of them is the five regimes of operation proposed by the University of Buffalo, which is described in this article. This approach has some degree of difficulty in order to implement a seismic analysis through this model; therefore, a simplified method of seismic analysis is proposed in this article. The proposal is based specifically on finding the effective stiffness to the design earthquake (DE) using the hysteresis curve points that defines the behavior of the model under seismic forces. As a practical application, the seismic analysis of Block 2 of the new Research Department and Graduate studies of the Universidad de Fuerzas Armadas ESPE is considered.