The construction process of the Zhangjinggao Yangtze River Bridge, the world's largest suspension bridge under construction, has ushered in a major breakthrough.The construction of the south anchorage foundation of the Zhangjinggao Yangtze River Bridge's south channel bridge has been successfully completed, marking the successful completion of all 32 small compartments, laying a solid foundation for the subsequent comprehensive construction of large compartments.
This majestic bridge spans the three cities of Suzhou, Taizhou and Nantong in Jiangsu Province. It starts at the intersection of the Shanghai-Shaanxi Expressway on the west side of Shizhuang Town, Rugao City, Nantong City, passes through Jiangxinzhou, a democratic sand island in Jingjiang, Taizhou City, and finally reaches the Chenyang Interchange on the Shugang Expressway in Zhangjiagang, Suzhou City.The overall line is 30 kilometers long, and the cross-river section reaches an astonishing length of 7,859 meters.
The Zhangjinggao Yangtze River Bridge consists of several key parts such as the south approach bridge, the south channel bridge, the middle approach bridge, the north channel bridge and the north approach bridge. Among them, the South Channel Bridge, as the main bridge of the bridge, spans the Fujiangshan South Water Channel of the Yangtze River, with a main span of 2,300 meters. It is not only the core of the Zhang Jinggao Yangtze River Bridge,It has the largest span among the bridges under construction in the world. It has set 6 world records in terms of span, cable tower height, anchorage volume, etc. It can be called a world-class super project.
The Zhangjinggao Yangtze River Bridge is not only eye-catching in terms of scale, but also leads the way in technological innovation. It has six "best in the world": it is the world's largest span bridge, has the world's tallest cable tower, is equipped with the world's longest high-strength main cable, created the world's largest ground-to-ground wall anchorage foundation, laid the world's longest continuous length steel box girder, and installed the world's largest displacement telescopic device.
In addition, the bridge is also unique in its design concept, creating six "world firsts": It adopts for the first time a self-balancing structural system for the main cable of an ultra-long-span suspension bridge, an ultra-high steel box-steel tube restrained concrete composite cable tower, an ultra-large-scale support-to-structure composite ground wall anchorage foundation, a hot-rolled L-rib partition continuous orthotropic steel bridge deck system, a full-bridge integrated intelligent anti-corrosion system, and an intelligent sensing replaceable anchor system.