Analytical Study of Triple Friction Pendulum Under a Different Hazard Level of Earthquakes

  • Ankit SodhaEmail author
  • Sandeep Vasanwala
  • Devesh Soni
  • Shailendra Kumar
  • Kanan Thakkar
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 38)


The triple friction pendulum (TFP) system is a new generation sliding isolation having four spherical sliding surfaces with three effective pendula. Due to multiple sliding surfaces, TFP system shows highly adaptive behaviour under different hazard level of earthquakes, despite being a passive system. In this research work, a mathematical model and seismic response pertaining to TFP system under maximum considered earthquakes have been described. Series model composed of existing nonlinear element is described along with its hysteretic force–displacement behaviour. Effective period and effective damping in combination with desirable displacement capacity of TFP bearing designs are considered. Due to the presence of multiple sliding surfaces, sliding displacement is distributed over the multiple surfaces and seismic energy is dissipated. It is also found that, at low input, TFP bearing stiffens. It gets soften with the increase in input. And, it gets stiffen against higher levels of input. Thus, it shows highly adaptive behaviour under different hazard levels of earthquake.


Seismic isolation Triple friction pendulum system Friction pendulum system Multi-hazard-level earthquake 


  1. 1.
    Mostaghel N, Khodaverdian M (1987) Dynamics of resilient-friction base isolator (R-FBI). Earthq Eng Struct Dynam 15(3):379–390CrossRefGoogle Scholar
  2. 2.
    Zayas VA, Low SS, Mahin SA (1990) A simple pendulum technique for achieving seismic isolation. Earthq Spectra 6(2):317–333CrossRefGoogle Scholar
  3. 3.
    Tsai CS, Lin YC, Su HC (2010) Characterization and modeling of multiple friction pendulum isolation system with numerous sliding interfaces. Earthq Eng Struct Dynam 39(13):1463–1491CrossRefGoogle Scholar
  4. 4.
    Fenz DM, Constantinou MC (2006) Behaviour of the double concave friction pendulum bearing. Earthq Eng Struct Dynam 35(11):1403–1424CrossRefGoogle Scholar
  5. 5.
    Fenz DM, Constantinou MC (2008) Modeling triple friction pendulum bearings for response-history analysis. Earthq Spectra 24(4):1011–1028CrossRefGoogle Scholar
  6. 6.
    Becker TC, Mahin SA (2013) Approximating peak responses in seismically isolated buildings using generalized modal analysis. Earthq Eng Struct Dynam 42(12):1807–1825CrossRefGoogle Scholar
  7. 7.
    Dhankot MA, Soni DP (2017) Behaviour of triple friction pendulum isolator under forward directivity and fling step effect. KSCE J Civ Eng 21(3):872–881CrossRefGoogle Scholar
  8. 8.
    Somerville P, Anderson D, Sun J, Punyamurthula S, Smith N (1998) Generation of ground motion time histories for performance-based seismic engineering. In: Proceedings 6th national earthquake engineering conference, Seattle, WashingtonGoogle Scholar
  9. 9.
    Soni DP, Mistry BB, Jangid RS, Panchal VR (2011) Seismic response of the double variable frequency pendulum isolator. Struct Control Health Monit 18(4):450–470CrossRefGoogle Scholar
  10. 10.
    Lee D, Constantinou MC (2016) Quintuple friction pendulum isolator: behavior, modeling, and validation. Earthq Spectra 32(3):1607–1626CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Ankit Sodha
    • 1
    Email author
  • Sandeep Vasanwala
    • 1
  • Devesh Soni
    • 2
  • Shailendra Kumar
    • 1
  • Kanan Thakkar
    • 1
  1. 1.Applied Mechanics DepartmentSardar Vallabhbhai National Institute of TechnologySuratIndia
  2. 2.Department of Civil EngineeringSardar Vallabhbhai Patel Institute of TechnologyVasad, Anand DistrictIndia

Personalised recommendations