Earthquake is a series of vibrations on the earth surface caused by seismic waves due to rupture during this accumulated strain energy released. By this shaking of the ground caused by sudden breaking in the sections. It may cause great damage and collapse of the buildings and other manmade structures etc. so, the design of the earthquake resistant structures is very important to safe the lives and economy of the country. To reduce the risks and damages to the rcc structures. The main cause for the earthquake is breaking between the two rocks. Earthquakes are occurs due to sudden movement of tectonic plates . which creates gap between the two sections. It is also responsible for various other disasters like landslides, avalanches, tsunamis and volcanic eruptions etc. the common cause of earthquakes are due to volcanic cause and another one is tectonic cause. These are most common cause for the earthquakes.In this paper author is explaining about earthquake and resistance and various retrofitting strategies used.
Earthquake resistant, Seismic zones, Retrofitting techniques
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