Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31103
Experimental and Analytical Study of Scrap Tire Rubber Pad for Seismic Isolation

Authors: Huma Kanta Mishra, Akira Igarashi

Abstract:

A seismic isolation pad produced by utilizing the scrap tire rubber which contains interleaved steel reinforcing cords has been proposed. The steel cords are expected to function similar to the steel plates used in conventional laminated rubber bearings. The scrap tire rubber pad (STRP) isolator is intended to be used in low rise residential buildings of highly seismic areas of the developing countries. Experimental investigation was conducted on unbonded STRP isolators, and test results provided useful information including stiffness, damping values and an eventual instability of the isolation unit. Finite element analysis (FE analysis) of STRP isolator was carried out on properly bonded samples. These types of isolators provide positive incremental force resisting capacity up to shear strain level of 155%. This paper briefly discusses the force deformation behavior of bonded STRP isolators including stability of the isolation unit.

Keywords: Finite Element Analysis, base isolation, buckling load, STRP isolators

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055090

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2532

References:


[1] James M. Kelly, Dimitrios Konstantinidis. Low-cost seismic isolators for housing in highly-seismic developing countries. 10th World Conference on Seismic Isolation, Energy Dissipation and Active Vibrations Control of Structures, Istanbul, Turkey, May 28-31, 2007
[2] James M. Kelly. Seismic isolation system for developing countries, Earthquake Spectra, 2002, Vol. 18, issue 3:385-406.
[3] Hamid Toopchi-Nezhad, Michael J. Tait, Robert G. Drysdale. Testing and modeling of square carbon fiber-reinforced elastomeric seismic isolators. Structural Control and Health Monitoring, 2008, 15: 876-900.
[4] Ahmet Turer and Bayezid Ozden. Seismic base isolation using low-cost Scrap Tire Pads (STP). Material and Structures, Vol. 41, 2008, 891-908.
[5] Hamid Toopchi-Nezhad, Michael J. Tait, Robert G. Drysdale. Bonded versus unbonded strip fiber reinforced elastomeric isolators: Finite element analysis. Composite Structures, 93(2011):850-859.
[6] Y.J. Arditzoglou, J. A. Yura and A. H. Haines. Test methods for elastomeric bearing on bridges. Research Report 1304-2, Texas Department of Transportation
[7] H. Holcher, M. Tewes, N. Botkin, M. Lohndorf, K. H. Hoffmann, E. Quandt. Modeling of pneumatic tires by a finite element model for the development of a tire friction remote sensor. Center of Advanced European studies and Research (Caesar), (2004), 40.
[8] Jong She Lee and Long Won Oh. Stability of rubber bearings for seismic isolation. Transactions of the 15th International Conference on Structural Mechanics in reactor technology, Seol, Korea, August 15-20, 1999.
[9] Gabriela Ferraro, Giuseppe Oliveto and Nicholas D. Oliveto. On the stability of elastomeric bearings. Department of Civil and Environmental Engineering, University of Catania, Italy.
[10] Ian Buckle, Sathish Nagarajaiah and Keith Ferrell. Stability of elastomeric isolation bearings: Experimental Study. Journal of Structural Engineering, vol. 128, No. 1, January 2002.
[11] R. Lo Frano and G. Forasassi. Evaluation of instability of Laminated Rubber Bearings under dynamic loading. Proceeding of ICAPP -10-, San Diego, USA, 2010.
[12] Farzad Naeim, James M. Kelly. Design of seismic isolated structures from theory to practice. John Willey and sons, Inc. 1999, chapter 6.
[13] ASCE-7. Minimum design loads for building and other structures, ASCE/SEI 7-05. New York, American Society of Civil Engineers, 2005.
[14] MSC Software (2010), MSC Marc 2010 and MSC Marc Mentat 2010, Santa Ana, California
[15] Eurocode 8. Design of structures for earthquake resistance. 2004