【摘要】 某工程采用张弦铝合金梁结构，跨度达70 m，由铝合金拱梁和PE索组成，支撑于钢立柱之上。该结构采用地面拼装、利用支架定点拼装，累计滑移形成结构主体的施工技术，在转换桁架区域设置临时滑移胎架及临时支柱，确保滑移施工的顺利开展，本工程拉索张拉以变形控制为主，内力控制为辅，施工过程中进行了基坑变形、结构变形、索内力及结构应力监测，保证了结构建造过程的安全。更多还原

【Abstract】 The project adopts a tensioned aluminum alloy beam structure with a span of 70m,consisting of aluminum arch beams and PE cables supported by steel columns. The structure utilizes ground assembly and support stands for precise assembly, accumulating sliding movements to form the main structure. Temporary sliding jigs and support columns are installed in the transfer truss area to ensure smooth progress of the sliding construction. Cable tensioning in this project is primarily controlled by deformation, with secondary control of internal forces. During construction, ground settlement, structure deformation, cable forces, and structural stresses were monitored to ensure the safety of the structure’s construction process.更多还原