An increase the use of tall structures is caused by a constant rise in population. An earthquake is called on by seismic
waves that reach the surface of the earth. Different locations experience different shaking intensity during earthquakes, and
these locations also experience various degrees of construction damage. In order to build the structure to withstand an
earthquake, these lateral forces on the structure must be estimated and specified. Structures should be stiff and strong enough to
control displacement at supports and be designed to resist these rapid forces.
