大跨预应力空心楼板关键施工技术重点研究  

KEY RESEARCH ON KEY CONSTRUCTION TECHNOLOGY OF LARGE-SPAN PRESTRESSED HOLLOW FLOOR

作　　者：许晓煌 XU Xiao-huang(Beijing Construction Engineering Group,100055,Beijing,China)

机构地区：[1]北京建工集团有限责任公司,北京100055

出　　处：《建筑技术》2020年第8期1020-1024,共1页Architecture Technology

摘　　要：通过总结北京鲜活农产品流通中心工程应用预应力空心密肋叠合楼板技术,空心楼板施工过程中的空心楼板抗浮验算,空心楼板模架体系承重验算,由科学计算结果确定技术措施,解决楼盖处大跨度结构且不同强度混凝土间完成一次性浇筑问题。最后总结了空心楼盖各工程施工要点,可为类似工程提供借鉴。By summarizing the application of pre-stressed hollow multi-ribbed laminated floor technology in the Beijing Fresh Agricultural Products Distribution Center project,the hollow floor antifloating check calculation during the hollow floor construction process,the hollow floor formwork system load-bearing check calculation,the technical measures are determined by the scientific calculation results,and the building is solved the problem of one-time pouring of large-span structure and different strength concrete at the cover.Finally,the key points of the construction of the hollow floor are summarized,which can provide reference for similar projects.

关 键 词：大跨预应力 钢混结构 空心楼盖 抗浮技术 整体浇筑 

分 类 号：TU74[建筑科学—建筑技术科学]