国内最大跨径公轨两用悬索桥主缆架设完成

Core Viewpoint - The Huangjue Tuo Yangtze River Bridge, a significant infrastructure project in Chongqing, has successfully completed the main cable installation, marking a key milestone in its construction process [1][2] Group 1: Project Overview - The Huangjue Tuo Yangtze River Bridge is a critical node in the Yuchang Expressway double-line connection project, with a total length of 1,260 meters and a main span of 765 meters, making it the largest span dual-use suspension bridge in China [1] - The bridge features two main cables, each composed of 169 strands, with each strand containing 127 wires of 5.8 mm diameter, made from zinc-aluminum alloy coated high-strength steel [1] - The total length of all steel wires used in the main cables is 57,000 kilometers, which is enough to wrap around the Earth's equator one and a half times, with a total weight of approximately 12,000 tons [1] Group 2: Construction Achievements - The installation of all 338 strands of the main cable was completed in just two months since the initial cable pulling on May 31, despite the high temperatures in Chongqing [1] - The construction team utilized intelligent temperature monitoring equipment to track the stress and temperature changes of the main cables, allowing for adjustments in construction parameters to mitigate uneven stress caused by temperature differences [1] Group 3: Future Impact - Upon completion, the Huangjue Tuo Yangtze River Bridge will serve as an important transportation artery connecting the southern and northern areas of Chongqing, improving the city's traffic environment and alleviating congestion on the inner ring and Yuhang Avenue [2] - The bridge is expected to accelerate the coordinated development of the two banks of the Yangtze River in Chongqing [2]