Study of seismic demands of symmetrical and asymmetrical RCC buildings using rubber base isolator

Abstract

One of nature's most devastating forces, earthquakes have historically been responsible for widespread human casualties and extensive material destruction, particularly to man-made buildings. However, earthquakes provide architects and engineers with a variety of crucial design requirements that are not often considered throughout the design process. Earthquake isolation, based on tried and tested methods vetted by several academics, may be utilized to solve a variety of issues in seismic design. Since the beginning of the twenty first century, the use of base isolation techniques to safeguard buildings against seismic threats has been widely recognized as one of the most successful methods available. This is due to the fact that earthquake attacks can be mitigated by isolating the building's base, and that a flexible base can effectively decouple the building from the ground motion, with the result that the accelerations caused by the building's response are typically smaller than those caused by the earthquake itself. The purpose of this paper is to show how effective base isolation approaches, such as the use of a lead rubber base isolator, are for asymmetric buildings of varying heights. In this part, we look at structures with 5, 10, 15, and 20 stories. Space frames made of reinforced concrete that can withstand a moment load due to gravity or seismic activity. A nonlinear analysis engine in ETABS version 20 software (CSI Ltd) is used to assess the building's compliance with seismic code IS-1893:2016.