Abstract
At the Universidad de las Fuerzas Armadas - ESPE, in Ecuador, different structural blocks with and without seismic isolators of triple friction pendulum are being built. In one of them, the access stairs to the floors is located in a Structural Block with no seismic isolators; therefore, it has special construction details to allow a free displacement of the Isolators’ Building without impacting the Stairs’ Building at all. This paper addresses these details. On the other hand, three models (each with different degrees of freedom) for seismic analyses of a longitudinal frame and a transversal frame are shown. The results were obtained and compared using the Spectral Method and the Capacity Spectrum Method. Moreover, these results highlight the importance of appropriately selecting the numerical calculation model. Later on, the seismic analysis of the Structural Block of the Access Stairs is shown, using a three-phase constitutive model.
Highlights
The Universidad de las Fuerzas Armadas – ESPE, located in the Valley of Los Chillos, is building eight structural blocks that will house the Research and Postgraduate Centers
It can be seen that the model with 10 degrees of freedom models with 10 degrees of freedom (M10) reports the smallest period, and the same occurs with the lateral displacement
If the structure has no isolators, Blocks 6 and 7 should be built with a construction joint, since the 7th Block has anirregular elevation. If they have seismic isolators, in this case the triple friction pendulum (TFP), the best is to build without joints, because, on the one hand, the column axis is eliminated with its respective isolators that should be put in the joint
Summary
The Universidad de las Fuerzas Armadas – ESPE, located in the Valley of Los Chillos, is building eight structural blocks that will house the Research and Postgraduate Centers. Structural Blocks 1, 2, 3, 6, 7 and 8 have seismic isolators of triple friction pendulum (TFP) and the 4th and 5th blocks have Shear Link energy dissipators.
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