科技日报：武汉双柳长江大桥主跨首片钢箱梁成功吊装

Core Viewpoint - The successful installation of the first steel box girder for the Wuhan Shuangliu Yangtze River Bridge marks a significant advancement in the construction of this major infrastructure project, which is part of the national expressway network and aims to enhance regional connectivity and logistics efficiency [1][3]. Group 1: Project Overview - The Wuhan Shuangliu Yangtze River Bridge is a key component of the G9906 Wuhan metropolitan area ring road, with a total length of 35.04 kilometers and a main span of 1430 meters, designed for a speed of 120 km/h and featuring an 8-lane dual carriageway [1]. - The bridge will be the widest steel box girder suspension bridge on the Yangtze River and is referred to as the "first bridge" of Wuhan's eastern gateway [1]. Group 2: Technical Details - The main span consists of 90 girder segments, with the first installed segment measuring 13.0 meters in length, 50.5 meters in width, and 4 meters in height, weighing approximately 298.6 tons [3]. - To ensure safety during the large-scale lifting operation, the project team implemented a detailed planning process, including the design modification of the cable crane and conducting pre-lift tests with a 455-ton steel box girder [3]. Group 3: Impact on Regional Development - Upon completion, the bridge will reduce the travel time from Xinzhou to Ezhou from one and a half hours to just five minutes, facilitating the integration of the Wuhan metropolitan area [4]. - The project will also create a fast transport corridor connecting Yangluo International Port to Ezhou Huahu Airport and the Wuhan National Aerospace Industry Base, enhancing the logistics hub functionality and promoting the integration of "Optics Valley" and "Star Valley" [4].