厦金大桥关键控制性工程刘五店航道桥主塔封顶

Core Points - The completion of the main tower of the Xiajin Bridge marks a significant milestone in its construction, transitioning from the "tower formation" phase to the critical "suspension bridge" phase [1] - The main tower of the Liu Wudian Channel Bridge, part of the Xiajin Bridge project, is the tallest in Fujian Province and the first fully offshore suspension bridge in the region [3][5] Group 1 - The Liu Wudian Channel Bridge is a cable-stayed bridge with a total length of 1,948 meters and a main span of 928 meters, featuring two main towers each standing at 178.1 meters [3][5] - The main tower consists of 60 steel shell segments and two steel crossbeams, with a total steel structure weight of 8,798.2 tons and a maximum single segment weight of 320.4 tons [3][5] - The project team overcame significant technical challenges related to offshore construction and high-precision assembly of steel shell segments through innovative breakthroughs [5] Group 2 - The construction process of the main tower utilized a prefabricated assembly method, with components manufactured in factories and transported by sea for high-precision installation, reducing the impact of unstable sea conditions [5] - The Xiajin Bridge project is a key national strategic initiative aimed at deepening cross-strait integration and establishing a "same city living circle" between Xiamen and Kinmen [5]