■ The 5-layer overpass is composed of 7 ramp bridges. The width of the bridge deck is 7.7m, the beam height is 1.5m, the total steel consumption is nearly 10,000 tons, the maximum span is 80m, and the maximum thickness of the main material is 32mm.
 

■ The horizontal projection of all ramp girder bridges is located in the plane arc curve, and the cross slope of the four bridge decks across Shijin canal is 1.5%; the cross slope of the other triple bridge decks is variable, with the maximum slope of 1.5%.