Earthquake-Resistant Buildings

Earthquake-Resistant Buildings * The horizontal movement of earth surface during earthquake is most dangerous to building. * The point on the fault where the slipping of earth material starts is known as focus or hypocentre. The point vertically above the focus on the surface of the earth is epicentre. The depth of focus from the epicentre is focal depth. Distance of the point of interest from the epicentre is called epicentral distance. * Magnitude of an earthquake is a quantitative measure of the earthquake, which indicates the amount of energy released at the source. It is represented by letter M followed by a number. An increase of one number means it is 10 times higher wave amplitude and 31 times higher energy release. Thus M6 earthquake has amplitude 10 times more than that is M5 earthquake and energy release is 31 times more. * Intensity of earthquake is a qualitative measure of shaking at a location. Hence, intensity of a earthquake varies from place to place. The Modified Merc...