国内首例！津潍高铁东营南站钢屋盖滑移分块首吊成功

Core Viewpoint - The successful completion of the first steel roof sliding operation at Dongying South Station marks a significant advancement in railway station construction technology in China, showcasing innovative construction methods and efficiency improvements [1][6]. Group 1: Project Overview - The total building area of Dongying South Station is 74,000 square meters, with a total steel structure weight of 18,500 tons, and a roof projection area of 59,000 square meters [3]. - The project is a key initiative for Dongying City and an important station on the Tianjin-Weifang High-speed Railway [3]. Group 2: Construction Techniques - The project employs a pioneering construction method of "ground assembly + high-altitude docking + high-altitude sliding," which addresses time constraints and safety issues during construction [3][6]. - The sliding operation involved moving a 52-ton steel truss using a 350-ton crawler crane, ensuring precise placement through advanced construction technologies like Tekla [5]. Group 3: Project Timeline and Efficiency - The application of the new sliding technology has reduced the construction timeline by 20-30 days [6]. - The project team will proceed with the construction in four phases, including continuous lifting of roof sections and installation of the roof system [6]. Group 4: Industry Impact - This innovative sliding technology fills a gap in the construction field and provides new ideas and practical experience for similar large-scale roof projects [6]. - The project has been recognized as a key topic by China Railway Construction Group and has passed the project approval by the China Construction Enterprise Management Association [6].