The upper structure of the bridge adopts a (23+2 × 26+23) m prestressed concrete inclined continuous box girder, with a one-time drop construction plan.
The end bulkhead is orthogonal to the web plate, and the middle bulkhead is inclined at a 66 ° angle to the web plate.
The continuous box girder adopts a diagonal web single box three chamber section, with parallel top and bottom plates and a beam height of 1.
6m.
The width of the single width top plate is 16.
25m, the width of the bottom plate is 11.
67m, the horizontal projection length of the diagonal web plate is 0.
29m, and the cantilever length is 2.
0m.
The thickness of the cantilever varies from 0.
18m at the outer edge to 0.
45m at the root.
The thickness of the top plate and bottom plate varies from 0.
25m and 0.
22m at the mid span to 0.
45m and 0.
42m at the fulcrum, respectively, and the thickness of the web plate varies from 0.
45m at the mid span to 0.
70m at the fulcrum.
The support cast-in-situ continuous box girder body is made of C50 concrete and designed as.
.