Analysis of Earthquake Damages and Seismic Reinforcement of Bridges

In recent years, with the frequent occurrence of earthquakes, the impact of earthquakes on the bridge has been increasing. Every time the earthquake occurred, bridges there almost got varying degrees of damages, hindering the normal traffic and losing the important role as emergency rescue and disaster relief channels and emergency shelters. Therefore, the seismic loads must be taken fully into account in the bridge design and seismic strengthening of bridge is necessary. Besides, the old bridges already put into normal operation must be reinforced appropriately according to the site condition. This paper described the various types of seismic damage of bridges and summarized several methods of seismic reinforcement of bridges.