Low-Cost Base-Isolation System for Seismic Protection of Rural Buildings
Publication: Practice Periodical on Structural Design and Construction
Volume 21, Issue 1
Abstract
A simple low-cost friction base-isolation system is examined for its applicability in reducing seismic vulnerability of rural buildings. Four friction isolation interfaces, namely, marble–marble, marble–high-density polyethylene, marble–rubber sheet, and marble–geosynthetic, were studied. The friction properties of these interfaces were studied under static and dynamic conditions for a range of normal loads from 10 to 50 kN. The average coefficients of friction for all of these interfaces except marble–rubber were found to be in the range of 0.05–0.15. The effectiveness of these isolation systems was investigated both analytically and experimentally for a spectrum-compatible ground motion corresponding to the maximum credible earthquake for the most severe earthquake zone according to Indian standards for earthquake-resistant design. The analytical prediction of seismic response of buildings with such isolation was found to be in good agreement (within 19%) with the experimental observation. It was found that for marble–marble and marble–geosynthetic interfaces, more than 50% reduction in absolute response acceleration at the roof level could be achieved in comparison with the response of the fixed-base structure at the cost of increasing relative sliding displacements at the friction interface. However, these relative displacements were well within the commonly adopted plinth projection (75 mm).
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References
Agarwal, P., and Shrikhande, M. (2006). Earthquake resistant design of structures, PHI Learning, New Delhi, India.
Ahmad, S., Ghani, F., and Adil, R. (2009). “Seismic friction base isolation performance using demolished waste in masonry housing.” Constr. Build. Mater., 23(1), 146–152.
Boore, D. M. (2005). “On pads and filters: Processing strong motion data.” Bull. Seismol. Soc. Am., 95(2), 745–750.
Booth, E., and Key, D. (2006). Earthquake design practice for buildings, 2nd Ed., Thomas Telford, London.
Bureau of Indian Standards. (2002). “Criteria for earthquake resistant design of structures.” IS 1893 (Part 1), New Delhi.
Jangid, R. S. (2005). “Computational numerical models for seismic response of structures isolated by sliding systems.” Struct. Control Health Monit., 12(1), 117–137.
Lou, Y., Wang, M., and Su, J. (1992). “A research of sliding shock absorbing multi-storey brick building.” Proc., 10th World Conf. on Earthquake Engineering, A. Bemal, ed., Vol. 4, A. A. Balkema, Rotterdam, Netherlands, 2499–2503.
MATLAB 2014 a-8.3.0532. [Computer software] ELMAX Projects and Services, NIT Durgapur, Durgapur, India.
Nanda, R. P., Agarwal, P., and Shrikhande, M. (2010). “Frictional base isolation by geotextiles for brick masonry buildings.” Geosynth. Int., 17(1), 48–55.
Nanda, R. P., Agarwal, P., and Shrikhande, M. (2012a). “Base isolation by geosynthetic for brick masonry buildings.” J. Vib. Control, 18(6), 903–910.
Nanda, R. P., Shrikhande, M., and Agarwal, P. (2012b). “Effect of ground motion characteristics on the pure friction isolation system.” Earthquakes Struct.,3(2), 169–180.
Nikolic-Brzev, S. (1993). “Seismic protection of multi-storey brick buildings by seismic isolation technique.” Ph.D thesis, Dept. of Earthquake Engineering, Univ. of Roorkee, Dharun, Uttarakhand, India.
Nikolic-Brzev, S., and Arya, A. S. (1996). “Seismic isolation of masonry buildings-An experimental study.” Proc., 11th World Conf. on Earthquake Engineering, Paper No. 1338, Elsevier, Abingdon, U.K.
Ozbulut, O. E., and Hurlebaus, S. (2010). “Evaluation of the performance of a sliding-type base isolation system with a NiTi shape memory alloy device considering temperature effects.” Eng. Struct., 32(1), 238–249.
Qamaruddin, M., and Ahmad, S. (2007). “Seismic response of pure-friction base isolation masonry building with restricted base sliding.” J. Eng. Res., 4(1), 82–94.
Qamaruddin, M., Rasheeduzzafar, Arya, A. S., and Chandra, B. (1986). “Seismic response of masonry buildings with sliding substructure.” J. Struct. Eng., 2001–2011.
Sassu, M. (2006). “The reinforced cut wall (RCW): A low-cost base dissipator for masonry buildings.” Earthquake Spectra, 22(2), 533–554.
Song, B., Yin, C., Zhang X., and Tao, S. (1990). “Experimental study and seismic response analysis of multi-storeyed brick buildings with friction base isolation.” Proc., 5th North America Masonry Conf., National Science Foundation (U.S.), Univ. of Illinois, Urbana–Champaign, IL, 77–787.
Tehrani, F. M., and Hasani, A. (1996). “Behaviour of Iranian low rise buildings on sliding base to earthquake excitation.” Proc., 11th World Conf. on Earthquake Engineering, Paper No. 1433, International Association for Earthquake Engineering (IAEE), Mexico City.
Tsopelas, P., Constantinou, M. C., Kim, Y. S., and Okamoto, S. (1996). “Experimental study of FPS system in bridge seismic isolation.” Earthquake Eng. Struct. Dyn., 25(1), 65–78.
Zongjin, L., Rossow, E. C., and Shah, S. P. (1989). “Sinusoidal forced vibration of sliding masonry system.” J. Struct. Eng., 1741–1755.
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© 2015 American Society of Civil Engineers.
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Received: Jun 17, 2014
Accepted: Dec 19, 2014
Published online: Apr 16, 2015
Discussion open until: Sep 16, 2015
Published in print: Feb 1, 2016
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