Introduction of Taoyaomen Bridge in Zhoushan?

Zhoushan Taoyaomen Bridge is the third of the five bridges of Zhoushan Cross-sea Bridge, and it is a super-large hybrid cable-stayed bridge with twin towers and double cable planes. Taoyaomen Bridge spans Taoyaomen Waterway, connecting Fuchi Island and Cizi Island, with a total length of 888 meters, a deck width of 27.6 meters and four lanes in both directions. The bridge started in March 2000 and was opened to traffic in June 65438+1October 65438+1October 2006.

Building structure

Taoyaomen Bridge, the third cross-sea bridge of Zhoushan Continental Link Island Project, is the second largest bridge in the world. The navigation grade is 2000 tons, with a clear height of 32 meters and a clear width of 280 meters. The main bridge is a hybrid cable-stayed bridge with a main span of 580m. The span arrangement is 48m+48m+50m+50m+48m+48m, and the main tower height is 15 1 m..

technology

In China, bridges with similar sizes and bridge types are mostly built in inland river basins. In order to cope with complex sea conditions, frequent typhoon disasters and serious marine climate corrosion, builders have implemented a series of innovative technologies.

Due to the strong seasonal wind on the island, the vibration of the stay cables of the bridge is very serious. The Taoyaomen Bridge adopts the method of combining viscous shear damper with hot-melt double helix PE sheath to suppress the vibration of stay cables. The marine climate is bad, and the beam steel structure is prone to serious corrosion. At that time, Taoyaomen Bridge adopted a new anti-corrosion technology of arc spraying, which ensured the design service life of steel box girder. The traditional anchoring method of anchor box has some problems, such as large welding stress, difficult correction, difficult processing, difficult operation and maintenance. The new technology of pin hinge connection of stay cables of Taoyaomen Bridge was successfully applied to long-span steel box girder cable-stayed bridge for the first time in China.

The Taoyaomen Waterway is turbulent, with dense whirlpools and no covering layer, so the working boat can't anchor and position for construction. The headquarters and engineers are applying the dynamic positioning technology of the work boat without breaking down. Asphalt pavement technology of steel box girder bridge deck is a technical problem that has long plagued the field of bridge construction at home and abroad. Drawing lessons from international academic achievements, the headquarters cooperated with Southeast University in technology, and adopted epoxy asphalt materials and paving technology in Taoyaomen Bridge, and achieved success.

For more exclusive information about the construction industry, please pay attention to the micro-signal of the construction network in real time.

For more information about bid writing and improving the winning rate, click on the bottom customer service for free consultation.