Mulanxi Bridge is a self-anchored suspension bridge with single tower and single cable plane prestressed concrete beam, with a main span of 100m. The main tower pier is consolidated with the main girder, and the rest piers are supported by movable supports. The main tower is 64 meters high, including 44.75 meters from the deck. There are 15 sets of slings on both sides of the main tower. The whole bridge is equipped with a main cable, which is placed in the center of the beam and directly anchored on the beam. The main cable is about 230 meters long and consists of 828 1 galvanized steel wire with a diameter of 5. 1 mm. The stiffening beam adopts prestressed concrete "inverted trapezoidal box section" beam structure, with a single box and three rooms. The beam height is 3.5 meters, and the roof width is 37.5 meters .. The main tower pier foundation adopts large-diameter rock-socketed bored piles. There are 1 14 piles in the whole bridge.
Self-anchored suspension bridge is a new type of bridge structure, and its design and construction technology, construction steps and control are very complicated. Construction technology is difficult, which is different from ordinary bridge construction. Therefore, the engineering and technical personnel of the project department have a detailed understanding of the actual hydrological and geological construction conditions of the construction site according to the design drawings and documents. After organizing technical consultation for many times, we have worked out a careful and feasible construction organization design, carefully organized the construction, and organized experts to demonstrate and formulate a special plan in view of the technical difficulties in the construction process. Through strict and scientific construction technology organization and support from all sides, the high-quality and safe completion is ensured.