light weight
saving building material
rapid installation
easy maintenance,suitable for continuous beam
high fiexural

The box girder section bridge has many advantages:light weight,steel saving,rapid installation,easy maintenance,and high flexural and tensional rigidity,suitable for continuous benm,good bearing capacity,simple and nice appearance in harmony with the surrounding environment.During the period of the box girder construction,the west-east and north-south traffic will be greatly fluenced.