Since the beginning of the 1990s, performance-based seismic design theory has entered the mainstream of structural seismic research.The purpose of performance-based seismic design theory is to determine the seismic performance objectives of a building based on its use, importance, and level of seismic fortification.Buildings designed in accordance with those objectives will safely withstand earthquakes that may occur in the future.On the bridge, plastic hinges placed on the piers were used to consume earthquake energy.Design for ductility can avoid collapse of the bridge.However, permanent deformation of the plastic hinges could cause serious damage to the pier.It is difficult to immediately repair bridges following earthquakes.Many transportation functions are significantly slowed or lost.In order to ensure that the transportation capacity of bridges is recovered quickly after a strong earthquake, many structural systems have been proposed, including rocking bridge piers and self-centering bridge piers.The continuous rigid frame bridge system with displacement-restricted piers was consistent with the concept of rocking piers.This structure can realize three important functions:(1) limit the maximum displacement of pier, (2) prevent the bridge from overturning, and (3)adjust the coefficient of friction at the pier bottom.By adhering to these objectives between the pier bottom and the pier cap, the displacement-restricted system allowed the bridge to move with under the action of the earthquake.In so doing, this method can reduce the input of energy to the bridge structure and achieve the purpose of earthquake mitigation.This study concluded that the continuous rigid frame bridge system with displacement-restricted piers could reduce ductility and strength demands on the bridge piers.This paper compared the displacement limits of 2 cm, 5 cm, 8 cm and traditional piers.The results showed that the displacement of the pier top, the bending moment at the pier bottom, and the bending moment of the pier at the bridge beam with the displacement-restricted 2 cm, 5 cm, 8 cm piers were much less than the piers of a traditional continuous rigid frame bridge.The results also show that the amount of displacement restrictions is important.Choosing the appropriate displacement restriction can ensure that the elastic working state of the bridge will be maintained under severe earthquake conditions.This can improve the effectiveness of earthquake relief work and greatly reduce the cost of repairs.