崇启公铁长江大桥非通航孔钢梁吊装全部完成

Core Points - The completion of the last road beam assembly for the non-navigation hole of the Chongqi Railway and Highway Yangtze River Bridge marks a significant milestone in the construction process [1][3] - The bridge, with a total length of 4.09 kilometers, is a key control project for the high-speed rail connecting Shanghai, Nanjing, and Hefei, and is recognized as the world's largest span double-tower, double-cable surface railway and highway dual-use cable-stayed bridge [5] Group 1 - The non-navigation hole bridge spans 2,197.4 meters and consists of 16 piers, with 6 piers on the north side serving as the main navigation hole and 10 piers on the south side as non-navigation holes [1] - The non-navigation hole bridge features an 11-hole continuous steel truss beam with a total span arrangement of 99.2 + 9×112 + 98.2 = 1,205.4 meters, utilizing a double main truss triangular arrangement [1] - The construction employed a "shore-side scattered assembly + multi-point synchronous pushing" method due to water depth restrictions, achieving a total pushing distance of 1,267 meters and a total pushing weight of 38,900 tons, ranking first in domestic similar bridge pushing distance and second in weight [1] Group 2 - The completion of the non-navigation hole bridge's road beam assembly facilitates the final round of pushing and subsequent integration with the main navigation hole steel beams, as well as the installation of the road bridge deck [3] - The project is expected to create a fast new corridor between the Shanghai metropolitan area, Nanjing metropolitan area, and Hefei metropolitan area, optimizing the railway network layout along the Yangtze River and supporting the coordinated development of the Yangtze Economic Belt [5]