SEISMIC ANALYSIS OF STRUCTURE WITH VARIED DAMPING RATIOS ON SEISMIC ZONE 4
Author:- Ankita Narvekar1, Dipanshu Kambli2, Sagar Rana3, Shubhansu Mishra4, Jaydeep Chougale5
Abstract More than 50% area in India is prone to damaging earthquakes. Some great Indian earthquakes such as earthquake on west coast of India (1819), Assam earthquake (1897), Bihar Nepal earthquake (1934) and the damage caused due to them creates a need for earthquake resistance in high rise buildings. And as a future civil engineer it is very important for us to learn how to design such structures and know more about it. This project is our attempt and experiment to study the relation between seismic zone and damping ratio and finding the optimum damping ratio to be used. Our project is to design a 15 storey building on etabs assuming all the required information referring IS code 456:2000 and IS code 1893:2002 (for earthquake). This structure is further subjected to different damping ratios on a particular seismic zone giving us the optimum damping ratio for that seismic zone. In our paper, we have taken seismic zone 4 and subjected the structure to damping ratio 0.5%,5%,10% and 20% respectively.
Keywords: Earthquake, Seismic, Response Spectrum, Drift, Damping, Damping ratio