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Influence Of Base Isolation On Seismic Repercussion Reduction Of Building
Subject area: Science,Engineering and Technology · Area of research: Civil Engineering
Abstract
The different types of vibration-control measures like passive, active, semi-active and hybrid vibration control methods have been developed. Base isolation is a passive vibration control system. The isolator partially reflects and partially absorbs input seismic energy before it gets transmitted to the superstructure. L.R.B isolators are placed between the superstructure and foundation, which reduces the horizontal stiffness of the system. Three types of vertical irregularities namely mass irregularity, stiffness irregularity and vertical geometrical irregularity were considered. Modal analysis of G+14 regular R.C.C structure. Base isolation reduces the lateral displacement, shear forces, bending moments, base shear, storey acceleration, interstorey drift as compared to the conventional fixed base structure. This shows the effectiveness of base isolation and concluded that base isolation is very effective seismic response control device.
Keywords
Base isolation, Fixed base, Vertical irregularities, Response spectrum analysis, Time history analysis, ETABS v 17.0.1.
References
[1] Meena Noorzai, M.N. Bajad and Neha Dodal, “Study Response of Fixed Base and Isolation Base”, International Journal of Innovative Research in Science Engineering and Technology, Vol. 4, Issue 5, pp. 2319- 8753, 2015.
[2] Minal Ashok Somwanshi and Rina N. Pantawane, “Seismic Analysis of Fixed Based and Base Isolated Building Structures”, International Journal of Multidisciplinary and Current Research, Vol. 3, pp. 2321-3124, 2015.
[3] Mohammed Masood Ahmed and Varnitha MS, “Study on Vibration control of Framed structures using Base Isolation”, International Journal of Research in Engineering and Applied Sciences, Vol. 5, Issue 6, pp. 2249-3905, 2015.
[4] Arvindreddy and R.J. Fernandes, “Seismic analysis of RC regular and irregular frame structures”, International Research Journal of Engineering and Technology, Vol. 2, Issue 5, pp. 2395-0056, 2015.
[5] Dileshwar Rana and Prof. Juned Raheem, “Seismic Analysis of Regular & Vertical Geometric Irregular RCC Framed Building”, International Research Journal of Engineering and Technology, Vol. 2, Issue 4, pp. 2395-0056, 2015.
[6] S. Varadharajan, V. K. Sehgal and B. Saini, “Seismic behaviour of Multistorey RC Frames with vertical mass irregularities”, Concrete Research Letters, Vol.6, pp. 1, 2015.
[7] Nirav G. PATEL, “Study on a Base Isolation System”, International Journal of Innovative Science, Engineering & Technology, Vol. 1 Issue 8, pp. 2348 – 7968, 2014.
[8] Syed Ahmed Kabeer K I and Sanjeev Kumar K.S, “Comparison of Two Similar Buildings with and without Base Isolation”, International Journal of Advance research, Ideas and Innovations in technology, Vol. 1, Issue 1, 2014.
[9] Sarang M. Dhawade and Shrikant M. Harle, “Seismic Performance of Base Isolated & Fixed Based RC Frame Structure using ETABS”, International Journal of Engineering Sciences and Research Technology, pp. 2277-9655, 2014.
[10] J. C. Ramallo, E. A. Johnson and B. F. Spence, “Smart Base Isolation Systems”, Journal of Engineering Mechanics, Vol. 128, No. 10, pp. 10-1088, 2002.
[11] Izumi Masanory, “Base Isolation and passive Seismic response control”, Proceedings of Ninth World Conference on Earthquake Engineering, Vol. VIII, pp. 385- 396 1988.
[12] Chopra Anil K. “Dynamics of Structures”, Theory and Applications to Earthquake Engineering. Second Edition, PHI publications, New Delhi, 2004.
[13] Pankaj Agrawal and Manish Shrikhande, “Earthquake resistant design of structures”, Second Edition, PHI Learning private limited, New Delhi, 2012.
[14] S. K. Duggal. “Earthquake Resistant Design of Structures”, First Edition, Oxford University Press, New Delhi, 2007.
[15] IS 13920:2016, “Indian Standard Code of Practice for Ductile Detailing of Reinforced Concrete Structures Subjected to Seismic Forces”, Bureau of Indian Standards, New Delhi, 1993.
[16] IS 456:2000, “Indian Standard for Plain and Reinforced Concrete - Code of Practice”, Bureau of Indian Standards, New Delhi, 2000.
[17] IS 1893:2016, “Indian Standard Code of Practice for Criteria for Earthquake Resistant Design of Structures”, Part 1, General Provisions and Buildings, Bureau of Indian Standards, New Delhi, 2002.
[18] ETABS 2017. Computers and Structures, Inc. Berkeley, California. International Code Council, Inc. International Building Code
How to cite this paper
@article{1701115,
author = {G. B. Deshmukh, N. L. Shelke},
title = {Influence Of Base Isolation On Seismic Repercussion Reduction Of Building},
journal = {Iconic Research And Engineering Journals},
year = {2019},
volume = {2},
number = {10},
pages = {362-368},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1701115.pdf},
abstract = {The different types of vibration-control measures like passive, active, semi-active and hybrid vibration control methods have been developed. Base isolation is a passive vibration control system. The isolator partially reflects and partially absorbs input seismic energy before it gets transmitted to the superstructure. L.R.B isolators are placed between the superstructure and foundation, which reduces the horizontal stiffness of the system. Three types of vertical irregularities namely mass irregularity, stiffness irregularity and vertical geometrical irregularity were considered. Modal analysis of G+14 regular R.C.C structure. Base isolation reduces the lateral displacement, shear forces, bending moments, base shear, storey acceleration, interstorey drift as compared to the conventional fixed base structure. This shows the effectiveness of base isolation and concluded that base isolation is very effective seismic response control device.},
keywords = {Base isolation, Fixed base, Vertical irregularities, Response spectrum analysis, Time history analysis, ETABS v 17.0.1.},
month = {April},
}