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超高层建筑是城市现代化建设的标志之一,其抗水平位移和抗震设计的要求凸显。目前越来越多的超高层应用桁架式加强层结构形式,以外框架+核心筒+外伸臂这样的抗侧力结构体系来满足结构设计要求。对超高层建筑施工而言,加强桁架层施工是最为复杂和重要的环节。介绍了桁架式加强层结构的深化设计、工厂拼装和现场安装的一体化过程,其中包括深化设计与协调、结构预拼装、施工过程结构分析、桁架结构和大悬挑结构安装、节点施工控制等施工技术和管理要点。
Super high-rise building is one of the hallmarks of urban modernization, and its anti-horizontal displacement and seismic design requirements highlight. At present, more and more high-rise applications of truss-type reinforcement layer structure, the outer frame + core tube + outrigger this side-force structural system to meet the structural design requirements. For super high-rise building construction, strengthening truss layer construction is the most complex and important part. The integration design of truss reinforcement structure, factory assembly and on-site installation are introduced, including deepening design and coordination, pre-assembly of structure, structural analysis of construction process, truss structure and installation of large cantilever structure, node construction control, etc. Construction technology and management points.