武汉都市圈发展提速 燕矶长江大桥主跨成功架设首梁

Core Viewpoint - The Yanjie Yangtze River Bridge, a significant infrastructure project in China, has completed the installation of its first steel beam, marking a crucial phase in its construction as the country's first large-span four-cable suspension bridge [1][2]. Group 1: Project Overview - The Yanjie Yangtze River Bridge connects Hubei's Ezhou and Huanggang, featuring an upper layer designed for expressways and a lower layer for urban rapid transit, serving as a vital crossing in the integrated transportation system of the region [2]. - The bridge's main span reaches 1860 meters, making it the first of its kind in China and the world to utilize four main cables with different vertical heights [1]. Group 2: Construction Details - The bridge's construction involves 69 segments of steel beams, with the first segment being lifted using a 900-ton cable crane [1]. - The construction process is complex, requiring precise connections to six sets of suspension cables, which necessitated extensive data validation and feasibility testing prior to construction [1]. Group 3: Impact and Benefits - Upon completion, the bridge is expected to reduce travel time from Huanggang to Huahu International Airport to just 15 minutes, significantly enhancing transportation efficiency for local residents [2]. - The bridge will play a key role in developing a comprehensive transportation system in the Ezhou region, supporting the accelerated growth of the Wuhan metropolitan area [2].