Seismic Analysis of Multi-Storey Buildings Resting on Normal and Sloping Grounds in Different Seismic Zones with and without Base Isolator

T. Sekar*, PL. Kadappan**
* Professor, Department of Civil Engineering, University College of Engineering, Ramanathapuram, India.
** Student, Department of Structural Engineering, Anna University Regional Office, Mudurai, India.
Periodicity:March - May'2015


An analytical study has been carried out to investigate the seismic behaviour of multi-storey buildings resting on normal and sloping grounds in different seismic zones with and without base isolators. Totally 160 multi-storey building models with rectangular configuration in plan of 12 x 16 m size have been analysed. The building models considered ranges from 1 storey height to 10 storey heights, and assumed to be located in seismic zones II, III, IV and V as per Indian standard code under two different terrain conditions viz. plain and sloping grounds with and without seismic base isolators. Response spectrum method of dynamic analysis has been performed using STAAD Pro software for all the building models, and the dynamic response quantities such as fundamental time period, base shear, top floor displacement and inter-storey drift were obtained for all the models. Seismic analysis results of building models indicate that for a given seismic zone and terrain condition, the introduction of seismic base isolators at base level of building increases fundamental natural time period, but reduce base shear, top floor displacement and inter-storey drift of the building. The results also indicate that for a given base (i.e. support) condition and terrain nature the base shear, top floor displacement and inter-storey drift increase as the seismic zone level increases. Furthermore, the results indicate that the introduction of seismic base isolation system at the base of building makes the structure behave like a rigid structure.


Keywords: Multi-Storey Building, Seismic Analysis, Fixed Base and Isolated Base, Normal and Sloping Grounds, Different Seismic Zones, Dynamic Response Quantities.

How to Cite this Article?

Sekar, T., and Kadappan, PL. (2015). Seismic Analysis of Multi-Storey Buildings Resting on Normal and Sloping Grounds in Different Seismic Zones with and without Base Isolator. i-manager’s Journal on Structural Engineering, 4(1), 9-18.


[1]. Ashish R. Akhare, and Tejas R.Wankhade. (2014). “Seismic performance of RC structure using different base isolator”, International Journal of Engineering Sciences and Research Technology, Vol.3, No.5, pp.724 - 729.
[2]. Birajdar, B.G., and Nalawade, S.S. (2004). “Seismic analysis of buildings resting on sloping ground” 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada, Paper No. 1472.
[3]. Devesh P. Soni, and Bharat B. Mistry. (2006). “Qualitative review of seismic response of vertically irregular building frames”, ISET Journal of Earthquake Technology, Technical Note, Vol.43, No.4, pp.121 - 132.
[4]. Dhawade, S.M. (2014). “Comparative study for seismic performance of base isolated and fixed based RC frame structure”, International Journal of Civil Engineering Research, Vol.5, No.2, pp.183 - 190.
[5]. IITK-BMTPC Earthquake Tip 22. (2014). “Learning earthquake design and construction - Why are short columns more damaged during earthquakes?”,1 - 2.
[6]. IS: 1893 (part 1) - (2002). "Criteria for Earthquake Resistant Design of Structures", Bureau of Indian standards, New Delhi.
[7]. Jenifer Priyanka, R.M., SaravanaBhaarathi. S., and Varun, J. (2014). “Study on lateral deflection of buildings with fixed support under various soil conditions”, International Journal of Engineering Research and Development,Vol.10, No.4, pp.36 - 40.
[8]. Keyvan Ramin, and Foroud Mehrabpour. (2014). “Study of short column behavior originated from the level difference on sloping lots during earthquake (special case: Reinforced concrete buildings)”, Open Journal of Civil Engineering, Vol.4, pp.23 - 34.
[9]. Khadiranaikar, R.B., and ArifMasali. (2014). “Seismic performance of buildings resting on sloping ground - A review”, IOSR Journal of Mechanical and Civil Engineering, Vol.11, No.3, pp.12 - 19.
[10]. Mahmoud Sayed-Ahmed. (2012). “Building with base isolation techniques”, Al-Azhar University Engineering Journal, JAUES, Vol.7. No.1, pp.147-159.
[11]. Md. ArmanChowdhury, and Wahid Hassan. (2013). “Comparative study of the dynamic analysis of multi-storey irregular building with or without base isolator”, International Journal of Scientific Engineering and Technology, Vol.2. No.9, pp.909 - 912.
[12]. Mohammed Umar Farooque Patel, Kulkarni, A.V., and NayeemullaInamdar. (2014). “A performance study and seismic evaluation of RC frame buildings on sloping ground”, IOSR Journal of Mechanical and Civil Engineering, pp.51 - 58.
[13]. Nagargoje, S.M., and Sable, K.S. (2012). “Seismic performance of multi-storeyed building on sloping ground”, Elixir International Journal of Electrical Engineering, Vol.53, pp.11980 - 11982.
[14]. Prashant, D., and JagadishKori, G. (2013). “Seismic response of one way slope RC frame building with soft storey”, International Journal of Emerging Trends in Engineering and Development, Vol.3. No.5, pp.311 - 320.
[15]. Ravikumar, C.M, Babu Narayan, K.S., Sujith, B.V., and Venkat Reddy, D. (2012). “Effect of irregular configurations on seismic vulnerability of RC buildings”, Architecture Research, Vol.2, No.3, pp.20 - 26.
[16]. Santhosh, H.P., Manjunath, K.S., and Sathish Kumar, K. (2013). “Seismic analysis of low to medium rise building for base isolation”, International Journal of Research in Engineering and Technology, pp.1 - 5.
[17]. Skinner, R.I., and McVerry, G.H. (1975). “Base isolation for increased earthquake resistance of buildings”, Bulletin of the New Zealand Society for Earthquake Engineering, Vol.8, No,2, pp.93 - 101.

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