Abstract
Quintuple Friction Pendulum (QTFP) isolator having five effective pendula with nine stage sliding regimes operation is an extended technology of Triple Friction Pendulum (TFP) isolator. Because of its multiple sliding surfaces, Quintuple Friction Pendulum system shows highly adaptive behavior instead of being passive system. The paper describes nonlinear mathematical model and seismic response of a structure isolated with Quintuple friction pendulum bearing. Different configurations depending on displacement capacities, effective time period and effective damping are considered for a design of QTFP bearing. The seismic demand parameters like top floor absolute acceleration, base shear and isolator displacement have been studied. Further, to study a seismic behavior of QTFP bearing under a Directivity Focusing Earthquakes, total nine records including far-field, near-fault ground motion with directivity effect and fling step effect are considered. Depending on the directivity effect and rupture pattern, for a given earthquake event, the near-fault ground motions are highly variable from far-field ground motions. It is found that, due to backward and forward momentum conveyed by the directivity pulse, near-fault directivity effect imposes higher demand compare to fling step having forward momentum only.
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References
Mostaghel N, Tanbakuchi J (1983) Response of sliding structures to earthquake support motion. Earthquake Eng Struct Dynam 11(6):729–748
Gueraud R, Noel-Leroux JP, Livolant M, Michalopoulos AP (1985) Seismic isolation using sliding-elastomer bearing pads. Nucl Eng Des 84(3):363–377
Mostaghel N, Khodaverdian M (1987) Dynamics of resilient-friction base isolator (R-FBI). Earthquake Eng Struct Dynam 15(3):379–390
Tsai CS, Lin YC, Su HC (2010) Characterization and modeling of multiple friction pendulum isolation system with numerous sliding interfaces. Earthquake Eng Struct Dynam 39(13):1463–1491
Fenz DM, Constantinou MC (2006) Behaviour of the double concave friction pendulum bearing. Earthquake Eng Struct Dynam 35(11):1403–1424
Fenz DM, Constantinou MC (2008) Modeling triple friction pendulum bearings for response-history analysis. Earthquake Spectra 24(4):1011–1028
Becker TC, Mahin SA (2013) Approximating peak responses in seismically isolated buildings using generalized modal analysis. Earthquake Eng Struct Dynam 42(12):1807–1825
Lee D, Constantinou MC (2015) Quintuple friction pendulum isolator-behavior, modeling and validation. In: Technical Report MCEER-15-0007, Multidisciplinary Center for Earthquake Engineering Research. University at Buffalo, Buffalo, NY
Galesorkhi R, Gouchon J (2000) Near-source effects and correlation to recent recorded data. In: Proceedings, 6th U.S. National Conference on Earthquake Engineering, Seattle, Wash
Kalkan E, Kunnath SK (2006) Effects of fling step and forward directivity on seismic response of buildings. Earthquake Spectra 22(2):367–390
Constantinou M, Mokha A, Reinhorn A (1990) Teflon bearings in base isolation II: modeling. J Struct Eng 116(2):455–474
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Sodha, A., Vasanwala, S., Soni, D. (2020). Seismic Response of Structure Isolated with Quintuple Friction Pendulum Bearing Under Directivity Focusing Earthquakes. In: Prashant, A., Sachan, A., Desai, C. (eds) Advances in Computer Methods and Geomechanics . Lecture Notes in Civil Engineering, vol 55. Springer, Singapore. https://doi.org/10.1007/978-981-15-0886-8_51
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DOI: https://doi.org/10.1007/978-981-15-0886-8_51
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