International Research Journal of Education and Technology

Earthquakes can inflict significant or severe structural damage. To safeguard buildings from such damage, various structural design techniques are employed, including the installation of shear walls, bracing systems, base isolation devices, and dampers. In this study, we will utilize the base isolation technique. This method decreases seismic forces by offering high lateral flexibility, which extends the structure's vibration period and reduces base shear.

Ongoing research and development are actively advancing various types of base isolation techniques. This study provides an overview of isolation techniques and the preliminary design of high-damping rubber bearings and lead rubber bearings, following the guidelines outlined in the Uniform Building Code (UBC - 1997).

It involves modelling and analyzing both fixed-base and base-isolated G+6 story structures using            E-TABS software to assess floor response, displacement, drift, and the structural time period during an earthquake.

The aim is to illustrate the effectiveness of isolation systems in earthquake-resistant building design.

Keywords—- Base Isolation Technique, High-damping rubber bearings, Lead rubber bearings, Floor response, Storey Displacement, Story drift, Structural time period.