Performance of Buildings at Different Soils using Pushover Analysis

Ketan Bajaj, Radha Gonawala, Bhavik M. Vyas


Earthquake has been considered as the most devastating calamity which may lead to loss of lives and properties as seen in 2001 earthquake at Bhuj, India. In India various buildings has been designed irrespective of the effect of dynamic load corresponding to different kinds of soil condition. So, in this study an attempt has been made to analyse different types of buildings viz. G+4, G+8 and G+12 under different soil condition as hard, medium and soft. The behavior of these building models has been studied in SAP: 2000 software considering nonlinear pushover analysis at different seismic zones as III, IV and V (as per IS: 1893, 2002). The spectral displacement and spectral acceleration at performance point has been compared to study the effect of soil-structure interaction (SSI). Pushover curves have also developed to examine the performance of the building at different conditions. It was determined that with the change in soil condition for the same type of building configuration, targeted displacement is not zero at zero base shear condition in nonlinear dynamic analysis. In addition to that, lateral deflection was also compared for different types of building. This study can be used while designing the building at different soil conditions and seismic zones.


Keywords: Pushover analysis, soil-structure interaction, spectral acceleration and displacement, demand-capacity curve

Full Text:



World Bank (2011) [cited 2012 July 9]; Available from:,,contentMDK:23064385~menuPK:158843~pagePK:2865106~piPK:2865128~theSitePK:223547,00.html

Storie LB, Pender MJ. Soil foundation structure interaction in shallow foundation earthquake response. Proceedings of the New Zealand Society for Earthquake Engineering Conference; 2013 April 26–28; New Zealand; 2013.

Bhattacharya K, Dutta SC. Assessing lateral period of building frames incorporating soil-flexibility. J Sound Vibra. 2004; 26: 795–821p.

Arlekar JN, Jain SK, Murty CVR. Seismic response of RC frames buildings with soft first storeys. Proceedings of the Golden Jubilee Year Conference on Natural Hazards in the Urban Habitat; 1997 Nov; New Delhi, India. 13–24p.

Anand N, Mightraj C. Seismic behavior of RCC shear wall under different soil conditions. Proceedings of the Indian Geotechnical Conference on Geo-trends; 2010 Dec 16–18;Mumbai, India. Mumbai: IGS Mumbai Chapter & IIT Bombay; 2010.

Constantinou MC, Kneifati MC. (1986). Effect of soil-structure interaction on damping and frequencies of base-isolated structures. The 3rd US National Conference on Earthquake Engineering; 1986 Aug 24–28; Charleston, South Carolina,US. Oakland,CA: Earthquake Engineering Research Institute; 1986. 671–81p.

Novak M, Henderson P. Base-isolated buildings with soil-structure interaction. Earthquake Engng Struct Dyn. 1989; 18: 751–65p.

Kelly JM. Shake table tests of long period isolation system for nuclear facilities at soft soil sites. Transactions of the 11th international conference on structural mechanics in reactor technology; 1991 Aug 18–23; Tokyo, Japan. USA: University of California; 1991.

Kelly JM. Earthquake-Resistant Design with Rubber. In: International Conference of Building Officials. 2nd Edn. London, US: Springer;1996.

Spyrakos CC, Vlassis AG. Effect of soil-structure interaction on seismically isolated bridges. J Earthquake Engng. 2002; 6 (3): 391–429p.

Spyrakos CC, Maniatakis CA, Koutromanos IA. Soil-structure interaction effects on base-isolated buildings founded on soil stratum. Engng Struct. 2009; 31(3): 729–37p.

Bureau of Indian Standard (BSI). IS 1893 (Part1), Criteria for Earthquake Resistant Design of Structures. Part 1: General provisions and buildings. 5th Edn. India: BSI; 2002.



  • There are currently no refbacks.