山东东营黄河公铁大桥主桥钢梁合龙

Core Insights - The completion of the main steel truss of the Dongying Yellow River Rail-Road Bridge marks a significant milestone in the construction of the Tianjin-Weifang high-speed railway [1] - The bridge, with a total length of 2,230.4 meters and a main span of 600 meters, is recognized as the "first span over the Yellow River" [1] - The foundation of the main tower has set a new record for the largest scale pile foundation in domestic rail-road combined bridges, showcasing advanced technology and engineering capabilities [1] Summary by Categories Construction Progress - The main steel truss of the Dongying Yellow River Rail-Road Bridge has been successfully connected, indicating the completion of the main structure and the transition to the bridge deck and auxiliary works [1] - This progress lays a solid foundation for the subsequent track laying and operational readiness of the bridge [1] Engineering Significance - The Dongying Yellow River Rail-Road Bridge is a critical component of the new Tianjin to Weifang high-speed railway [1] - The project is characterized by high difficulty, innovative technology, and large-scale construction, emphasizing its status as a super engineering project [1]