Seismic Isolation of Building-Equipment System Using Modified Variable Friction Pendulum System

Authors

  • Darshak Patel Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology, Changa, Gujarat, India
  • V. R. Panchal Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology, Changa, Gujarat, India
  • Maulik Patel Knowledge Institute of Technology and Engineering, Bakrol, Gujarat, India.

DOI:

https://doi.org/10.15415/jotitt.2019.71003

Keywords:

Base isolation, MVFPS, Building- equipment, Near-fault ground excitation

Abstract

In this study, building-equipment system with Modified Variable Friction Pendulum System (MVFPS) is investigated under different earthquake ground excitations. Earthquake response of building-equipment system isolated with MVFPS is compared with Variable Friction Pendulum System (VFPS) and Friction Pendulum System (FPS) in order to find efficiency of MVFPS. Newmark’s linear acceleration method is used for solving governing equation of motion for building-equipment system. In this investigation, different storey buildings are considered. It is observed that MVFPS is more efficient in reducing the recoverable energy than FPS, but less efficient than VFPS. From the comparative study, it is found that FPS shows robust performance in comparison to MVFPS and VFPS in reducing equipment acceleration and displacement.

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References

[1] P. Murnal and R. Sinha, “Aseismic design of structure –equipment systems using variable frequency pendulum isolator”, Nuclear Engineering and Design, vol. 231, pp. 129 – 139, 2004.
[2] L. Lu, “Near-fault seismic isolation using sliding bearings with variable curvatures”, 13th World Conference on Earthquake Engineering, Canada, 2004
[3] M. Joshi , V. R. Panchal and D. P. Soni, “Aseismic design of building equipment System using conical friction pendulum isolator” International Journal of Emerging Technology and Advanced Engineering , vol. 8, pp. 10 – 16, 2018.
[4] V. Bhayani and V. R. Panchal, “‘Seismic response of building-equipment isolated with polynomial friction pendulum isolator” 2nd International Conference on Current Research Trends in Engineering and Technology ,Vadodara, 2018.
[5] A. Shaikhzadehi and A. Karamoddin “Behaviour of sliding isolators with variable friction under near-fault earthquakes”, 7th International Conference on Earthquake Engineering and Seismology, Iran, May 2015
[6] P. R. Bhavsar and V. R. Panchal, ”Seismic behavior of multi-storied building isolated with modified variable friction pendulum system under harmonic ground motions”, International Conference on Technology and Management (ICTM), 17th-18th February, Visnangar, Gujarat, 2017.

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Published

2019-06-28

How to Cite

Darshak Patel, V. R. Panchal, & Maulik Patel. (2019). Seismic Isolation of Building-Equipment System Using Modified Variable Friction Pendulum System . Journal on Today’s Ideas - Tomorrow’s Technologies, 7(1), 47–60. https://doi.org/10.15415/jotitt.2019.71003

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Articles