Lead Rubber Bearings as Base Isolating Devices for the Construction of Earthquake Resistant Structures-A Review

International Journal of Civil Engineering

© 2017 by SSRG - IJCE Journal

Volume 4 Issue 7

Year of Publication : 2017

Authors : Prachi Mishra, Dr.G.D Awchat

10.14445/23488352/IJCE-V4I7P103

How to Cite?

Prachi Mishra, Dr.G.D Awchat, "Lead Rubber Bearings as Base Isolating Devices for the Construction of Earthquake Resistant Structures-A Review," SSRG International Journal of Civil Engineering, vol. 4,  no. 7, pp. 18-20, 2017. Crossref, https://doi.org/10.14445/23488352/IJCE-V4I7P103

Abstract:

Base isolation, also identified as seismic base isolation or base isolation system, is one of the utmost means of shielding a structure against earthquake forces. A laminated rubber bearing (LRB) can be used as a base isolator. It consist of steel shims between rubber layers, the LRB practices its flexibility to bend seismic waves and, through plastic deformation absorbs the energy from the vibrations. Furthermore its lead core assists in supplementary dissipating the energy. LRB is a type of base isolation employing a heavy damping. It was invented by William Robinson, a New Zealander.

Keywords:

Earthquake, Ground Motion, Isolator, Lead Core, Lead Rubber Bearing.

References:

[1] Abdul Raheem Faghaly"Optimum Design of Systems for Tall Buildings."International Journal of optimization in civil engineering, August 2012
[2] Allen J. Clark "Multiple Passive base isolator For Reducing the Earthquake Induced Ground Motion." proceedings of ninth world conference on Earthquake engineering, august 2-9,1988
[3] Amr.W.Sadek "Non-Linear Response of Torsionally Coupled structures". World Earthquake Engineering conference 1980
[4] FahimSadek, BijanMohraj, Andrew W.taylor and Riley M.Chung"A method of estimating the parameters of tuned mass dampers for seismic applications ". Earthquake Engineering and Structural Dynamics, Vol 26, 617-635 (1997).
[5] J.Ormondroyd and J.P. Den hartog ," the theory of dynamic vibration absorber",Trans. ASME APM-50- 7, 1928, pp. 9- 22
[6] Jonathan Chambers and Trevor Kelly "Non-Linear Dynamic Analysis-the only option for irregular structures." 13th World Conference on Earthquake Engineering Vancouver, Canada. August 1-6, 2004. Paper No.1389
[7] K.S.Jagadish, B.K.R.Prasad and P.V.Rao,"The Inelastic Vibration Absorber Subjected To Earthquake Ground Motions."Earthquake engineering and Structural Dynamics. 7, 317-326 (1979).
[8] Kim Sd, Hong Wk, JuYk"A modified dynamic inelastic analysis of tall buildings considering changes of dynamic characteristics" the structural design of tall Buildings 02/1999. Seismic Excitation of Low to High Rise RCC Structure with Lead Rubber Bearing Base Isolation http://www.iaeme.com/IJCIET/index.asp 481 editor@iaeme.com