Guangdong Dongguan-Shenzhen Expressway was built in the late 90s, due to the impact of adverse external loads(road overloaded, overrun), makes the safety of the bridge structure decreased, some sections are not adapted to the growing traffic needs, must reinforce the maintenance of the road.

The reinforcement content as follows:

1. Bridge pier bearing replacement

   
   

   
   

2. Structural crack repair

   
   

   
   

   

   
   

3. Structural strengthening with fiber reinforced polymer(FRP) fabric