000020317 001__ 20317
000020317 005__ 20170118182409.0
000020317 04107 $$aeng
000020317 046__ $$k2017-01-09
000020317 100__ $$aCaiza, Pablo
000020317 24500 $$aImplications of Friction Coefficient Variation in the Seismic Analysis of Structures With Triple Friction Pendulum Systems (Fpt). An Application Case

000020317 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020317 260__ $$b
000020317 506__ $$arestricted
000020317 520__ $$2eng$$aThe earthquake at Pedernales in April 16 2016, of magnitude 7.8, caused too much damage in the structures of the provinces of Manabi and Esmeraldas in Ecuador, and marked the beginning of a new way of construction using passive control systems, such as seismic isolators or energy dissipators. At Universidad de las Fuerzas Armadas ESPE, located in the Valley of Los Chillos in Ecuador, five structural blocks with triple friction pendulum seismic isolators are being built. This paper describes the results of tests conducted to 61 isolators of this construction project, subjected to vertical loads of 250 tonf. In each test, three load cycles were applied at a rate of 12 seconds each, with a maximum amplitude of 30 cm. The friction coefficients obtained in each cycle and in each isolator were recorded. On this basis, three sets of data for the coefficient of friction of the plates of the isolation system were selected: one data base with maximum values, other with minimum values and another with nominal values. With these values, a seismic analysis was performed on the ESPE structural blocks using the simplified analysis model in ASCE 7, the Mc Vitty and Constantinou (2015) three-stages model and the Fenz and Constantinou (2007) five-stages model. The results are compared in terms of displacements and forces. Finally, the force and displacement results were compared at each level of friction coefficients: maximum, minimum and nominal values.

000020317 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020317 653__ $$aTriple friction pendulum seismic systems (FPT), Maximum value of frictional coefficient, Minimum value of frictional coefficient and Nominal value of frictional coefficient.

000020317 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020317 720__ $$aCaiza, Pablo$$iVillarruel, Gissela$$iAguiar, Roberto
000020317 8560_ $$ffischerc@itam.cas.cz
000020317 8564_ $$s1010692$$uhttps://invenio.itam.cas.cz/record/20317/files/970.pdf$$yOriginal version of the author's contribution as presented on USB, paper 970.
000020317 962__ $$r16048
000020317 980__ $$aPAPER