Superstructure consists of two single-compartment box girders; three-way prestressing, cantilever casting method of construction; the use of pre-stressed elastic expansion joints with stiffening steel and neoprene rubber tubes, the expansion and contraction of up to 200mm. abutments with equal cross-section hollow reinforced concrete structure. Sturdy.

Three-way prestressing reinforcement is adopted, and the longitudinal prestressing tendons have no downward bending bundles. The variable height girders are constructed by balanced cantilever casting and cantilever assembling methods, and the equal height girders are constructed by multi-point jacking method. Stable.

It's hole laying is characterized by the use of hillside rock, so that the lower chord bar of the side hole is united with the rock disk, and the prestressing thick reinforcement of the diagonal tie bar is anchored in the rock disk. The use of lifting capacity of 1200KN steel lattice herringbone pickets and diameter 32mm 40Si2MnV Ⅳ grade steel rolled wire anchor system cantilever assembly and system conversion.

The arch axis of the bridge is folded, and the nodes are on the secondary parabola. In order to reduce the bending moment of the main girder, the arch rib and the main girder are connected eccentrically at the pivot point, and the stiffness ratio of the main girder and the arch rib is 108:1, with the arch sagittal height of 11.2m and sagittal degree of 1/5. The bridge is a assembled structure, which is assembled in place on the scaffolding rigid girder.

The main bridge is a single cable-stayed single tower prestressed concrete cable-stayed bridge. The tension cables are arranged as parallel cables

The main bridge is a double-tower single cable-stayed prestressed concrete cable-stayed bridge. The piers are double rows of thin-walled flexible piers to meet the large temperature deformation, and avoid the installation of large-tonnage sliding bearings. The elevation is inverted "Y" shape. Fan-shaped cable arrangement. The main girder construction adopts the unique method that the middle box is grouted before the side boxes on both sides, and the hanging basket construction is used instead of the stiffening skeleton.

The main bridge is a double-tower, double-surface steel and concrete girder cable-stayed bridge. The tower of the main bridge is 150m high, and it adopts folded H-shaped reinforced concrete tower columns, and the double cable faces are arranged in fan shape. The two ends of the main bridge and side piers set 640mm combined large displacement expansion.