Good news! The Shanghai-Suhu Railway Construction Project Overcomes Difficulties Again! The main tower of my country’s first dual-purpose four-line cable-stayed bridge for high-speed railway and normal-speed railway was fully capped in Songjiang

At 9:58 today (November 28), after nearly 4 hours of concrete pouring, the cable-stayed bridge across the Xietang waterway of the Shanghai-Suhu Railway The last main tower was successfully capped, laying a solid foundation for the next installation of cable stays and steel box girders. The bridge is not only my country’s first dual-purpose four-line cable-stayed bridge for high-speed railways and normal-speed railways, but also has a double-sided box-steel-concrete composite girder design with four-line ballastless tracks on the same bridge, which is also rare in the history of bridges in the world.

Shanghai-Suhu Railway Slope The Tang Channel Cable-Stayed Bridge is located in Shihudang Town, Songjiang District. The bridge body is a double-tower, double-cable plane, double-sided box-steel-concrete composite beam structure, with a total length of 460 meters and a main span of 260 meters. The main tower of the cable-stayed bridge adopts two H-shaped towers, with a height of 95 meters and 97 meters respectively, and a height of nearly 27 floors. many.

< p>“Due to the use characteristics of the four-line paralleling of the cable-stayed bridge across the Xietang channel, the force transmission mechanism of the main girder, the shear lag effect, the torsional distortion effect, the force transmission mechanism of the steel-concrete joint section, and the resistance of the cable anchorage structure Fatigue capacity, temperature effect of composite beams, wind resistance performance, wind tunnel test, static wind stability and wind-induced dynamic response are also relatively rare in the history of bridges in the world.” Zhou Hougang, the person in charge of the Shanghai-Suhu Railway Project of China Railway Guangzhou Bureau, introduced that for its The characteristics of the project, the project set up a research group and carried out technical research, has applied for 28 patents, and fully introduced information management and BIM (Building Information Modeling) technology to continuously optimize and improve the construction plan, providing scientific and technological support for the construction of the project.

< p>“In order to create high-quality and high-quality projects, the headquarters coordinates epidemic prevention and control and project construction, and guides the project department of China Railway Guangzhou Engineering Bureau, the construction unit, to discuss and discuss the topping-off construction plan for many times, and grasp the construction organization in a scientific and orderly manner.” Shanghai Railway Yan Weiqiang, deputy commander of the hub project construction headquarters, said that the project adopts hydraulic climbing formwork construction. Through innovations in construction steps and climbing formwork structure, construction efficiency has been improved, construction personnel on the pier top can be controlled, safety risks of high-altitude operations have been reduced, and the tower column has been effectively protected. Safety and quality of construction.

according toIt is reported that the Shanghai-Suhu Railway starts from Shanghai Hongqiao Station, passes through Suzhou City, Jiangsu Province, and ends at Huzhou Station, Huzhou City, Zhejiang Province. The total length of the main line is about 163.8 kilometers, and the design speed is 350 kilometers per hour. . After completion and opening to traffic, the railway will become an important railway transportation channel connecting Shanghai, Suzhou, Huzhou and other cities. It can not only share the traffic pressure of Shanghai-Nanjing and Shanghai-Hangzhou passages, but also facilitate the connection between Lishui, Liyang, Yixing and other cities and Shanghai , It is of great significance to further improve the road network layout in the Songjiang area, strengthen the functional radiation of Shanghai to the core hinterland of the Yangtze River Delta, promote the integration of the Yangtze River Delta region and the modernization development of the southern Jiangsu region.

Text: Li Guang

Image: Cai Bin

Editor: Fan Jiaqi, Li Xiang, Wang Hongxia