张靖皋长江大桥建设迎来新进展

Core Points - The Zhang Jinggao Yangtze River Bridge construction has made significant progress with the completion of the south main tower's crossbeam hoisting [1][3] - The bridge features the world's largest main span of 2300 meters, connecting the cities of Suzhou, Taizhou, and Nantong in Jiangsu Province [3][7] Construction Details - The north and south main towers of the bridge utilize a door-type steel box structure, standing at a height of 208 meters (excluding the tower crown) [3] - The upper crossbeam consists of five precision segments, weighing approximately 640 tons, with strict control of joint gaps within 10 millimeters [3][5] - The hoisting segment of the south main tower measures 8 meters in width, 8 meters in length, and 9.1 meters in height, weighing 115 tons, and was lifted to a height of 100 meters with millimeter-level precision [5] Technological Integration - The project team employed advanced digital tools, utilizing BIM technology for full-process dynamic simulation of the hoisting operation, identifying and mitigating safety risks and quality issues [5] - A digital twin system was used to reconstruct the steel tower structure in a virtual environment, allowing for multi-dimensional simulation verification [5] Strategic Importance - Upon completion, the Zhang Jinggao Yangtze River Bridge will play a crucial role in promoting integrated development in the Yangtze River Delta, optimizing the river's crossing channels, and enhancing regional road network layout [7]