China News Service Zhanjiang, July 18 (Cai Minjie, Zhou Wentao) Following the capping of the east main tower, Zhanjiang, Guangdong tuned the west main tower of the cross-sea bridge to cap on the 18th. It is expected that the bridge will be closed at the end of the year and will be opened to traffic next year. Hong Kong and Macau Bay Area.
Tiaoshun Cross-sea Bridge is located in the north of Zhanjiang City, Guangdong Province. It crosses Zhanjiang Bay and connects Zhanjiang Tiaoshun Island and Haidong New District. It is also a convenient passageway from the urban area to Zhanjiang International Airport, with a total length of 9.36 kilometers. The bridge was designed by the team of academicians of the Chinese Academy of Engineering, He Jingtang. The main tower is colored in Chinese red. The upper part of the tower is inspired by traditional Chinese seals. The word "tune" is written in a seal.
The main tower of Guangdong Tiaoshun Cross-sea Bridge is capped by Wang Xinnan
According to Dai Junxiang, project manager of the China Railway Bridge Bureau Tuning Cross-sea Bridge Project Department, the main bridge has a total length of 591 meters and a main span of 296 meters. It is a double-tower double-cable-stayed cable-stayed bridge. The tower is gate-shaped and divided into lower tower columns. , The lower beam, the upper tower and the upper beam. The entire bridge deck is 37.5 meters wide, with a two-way 6-lane design and a design speed of 80 kilometers per hour. The main tower of the bridge is 136.9 meters high, which is equivalent to the height of 50 floors. The construction of the first steel guard tube began at the West Main Pier in November 2018.
In the construction of the steel guard tube of the main pier of the bridge, due to the long length and heavy weight of the steel guard tube, and the high degree of verticality, it is very difficult to insert. In order to ensure the overall quality of the pile body, the China Railway Bridge Bureau uses the "cross intersection method" to use a pile driving boat to insert a steel casing to make the verticality within three thousandths.
The main tower of Guangdong Tiaoshun Cross-sea Bridge is capped by Wang Xinnan
China Railway Bridge Bureau transferred the chief engineer of the cross-sea bridge project, Gao Bo said that because the bridge is a sea-crossing bridge, in order to ensure the quality of the project, the main tower uses the same epoxy reinforced steel as the Hong Kong-Zhuhai-Macao Bridge, C55 offshore high-performance concrete, and the outer surface All are coated with anti-corrosion materials.
In order to reduce the damage of epoxy steel bars during transportation, the project department set up a special steel bar processing factory to "remove" the experts and machinery for processing epoxy steel bars from Zhongshan to the construction site, so that the corrosion protection standards of the bridge meet the design requirements.
Tuning the cross-sea bridge is part of the northern line of the Central Bay Area in the road network planning of Zhanjiang City. It will promote the connection of Zhanjiang to the Guangdong-Hong Kong-Macao Greater Bay Area, help the construction of the new marine city in eastern Guangdong Province, and accelerate the rapid economic development of Guangdong's western Guangdong area. Plays a certain role. (Finish)