The largest in Asia! The company has completed all beam-laying tasks for the Ningbo Phase I project of the Hangzhou-Ningbo double-track line at the Binhai interchange.
Release time:
2023-08-16
On the afternoon of July 25, as the last heavy steel-concrete composite beam weighing about 170 tons was steadily placed on both sides of the bridge pier, the beam-laying task for the Ningbo Phase I project of the Hangzhou-Ningbo double-track coastal interchange, the largest offshore interchange in Asia undertaken by Changhong Steel Structure Company, was completed.
The entire interchange project consists of 470 steel-concrete composite beams, with a total steel structure usage of 23,500 tons, making it the largest offshore interchange project under construction in Asia. The construction, transportation, and erection of the steel structure for this project are all undertaken by Changhong Steel Structure Company.
Since the large-scale manufacturing and beam erection of the coastal interchange began in January 2022, the project builders have overcome various difficulties in the manufacturing, transportation, and erection of the steel-concrete composite beams. In terms of manufacturing, Changhong utilized the advantages of the assembly platform, adopting a modern infrastructure model of steel-concrete internal field stacking, standardization, factory production, and process flow; for beam transportation, considering that the steel box beams are all curved and the individual beams are relatively wide, the project command center decided to use maritime transportation after extensive research and discussion to avoid risks and hazards associated with transporting beams on highways with heavy traffic. Additionally, a lifting station was built in the interchange area to comprehensively solve issues related to the loading, unloading, and lifting of the beams; for beam erection, various methods such as crawler cranes and bridge erecting machines were employed to promote the safe, efficient, and orderly erection of the beams.
Once completed, the project will significantly shorten the spatial and temporal distance between the southern wing of the Yangtze River Delta and cities such as Shanghai and Jiangsu, which is of great significance for achieving the goal of a high-level transportation strong province and promoting the high-quality development of the integrated Yangtze River Delta.
For many years, Changhong Steel Structure Company has been expanding and strengthening its large-scale steel structure manufacturing business, including bridges and offshore wind power pile foundations, relying on its advantageous geographical location and port conditions to release production capacity and create benefits.
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