Comparision of Fixed Base and Base Isolation Reinforced Concrete Structure for Seismic Response


  • Yagneshkumar Patel PG Student, Civil Engineering Department, School of Engineering,R.K. University, Rajkot
  • Pradeep Kumar Pandey Assistant Professor, Civil Engineering Department, School of Engineering, R.K. University, Rajkot


Base isolation, Rubber, Response Spectrum, Base Shear, Displacement


Seismic hazards are a major concern in many populous regions of the world. Performance-based seismic
design has brought about new technological advances and introduced an innovative approach to constructing seismicresistant buildings. Base isolation is one of the most powerful tools of earthquake engineering pertaining to the passive
structural vibration control technologies. The application of the base isolation techniques to protect structures against
damage from earthquake attacks has been considered as one of the most effective approaches and has gained increasing
acceptance during the last two decades.Design of base isolation bearing is taken from International Building code IBC2000In order to verify the effect of base isolation system, two different structures are presented (7 stories symmetrical
and non-symmetrical school buildings) in which the seismic responses of the 'fixed-base' and 'base-isolated' conditions
have been compared using Etabs (a well-known computer program).The high damping rubber isolation system has been
used and devices have been installed at the foundation level. Response Spectrum Analysis has been performed using
Indian Standard Code IS-1893(Part-1):2002. Comparing the results of the base-isolated condition with those obtained
from the fixed-base condition has shown that the base isolation system reduces the base shear force and storey drifts,
whilst also increasing the displacement.



How to Cite

Yagneshkumar Patel, & Pradeep Kumar Pandey. (2017). Comparision of Fixed Base and Base Isolation Reinforced Concrete Structure for Seismic Response. International Journal of Advance Engineering and Research Development (IJAERD), 4(4), 469–482. Retrieved from