Seismic Performance of Base Isolated & Fixed Based RC Frame Structure using ETABS
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 3
Abstract
The earthquake causes a great damage to the structure. It is very important to protect the structure from earthquake forces and it can be done by various methods. One of the methods is seismic base isolation. The modeling procedure of not only fixed base but also of base isolated building in ETAB software is carried out. Also the design steps of isolators and linear static analysis using UBC 97 for isolated building has been discussed in the present work. Analytical seismic response of (G+14) storied building supported on base isolation system is investigated and compared with fixed base building. The results of various parameters such as the variation in maximum storey displacement, maximum storey drift, lateral loads to stories, and storey overturning moment and storey shear of isolated building is studied. Using base isolation system at (G+14) storied, it is found that the base isolation technique was protected and better for structure more than 10 storey. It was observed that the variation in maximum displacement of stories in base isolated model is very low while compared with fixed base model. It was also observed that storey overturning moment & storey shear are also found to be reduced in base isolated building.
Authors and Affiliations
Sarang M. Dhawade
Keywords
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