某大跨度缓粘结预应力空心楼盖施工关键技术.pdf

施工技术 2017年2月上 48 CONSTRUCTION TECHNOLOGY 第46卷第3期 D0I:10.7672/sgjs2017030048 某大跨度缓粘结预应力空心楼盖施工关键技术 郝玉松1，张栩珲2，侯煦新一3，吴国辉4 (1.北京市建筑工程研究院有限贵任公司，北京100039；2.北京军区联勤部基建营房部，北京100041； 3.北京住总第四开发建设有限公司，北京100026；4.北京住总集团有限责任公司，北京100101) [摘要]缓粘结预应力技术继承了有粘结预应力和无粘结预应力的优点，同时弥补了各自的不足，以其简单的施工 工艺、优良的力学性能受到越来越多的认可.本缓粘结预应力技术在空心楼盖中的应用，将有效地提高结构的承 载力，增大结构的使用空间，同时也提高了结构的抗震性能和耐久性.结合工程实例，介绍了缓粘结预应力空心板 的应用与施工要点. [关键词]混凝土；楼盖；预应力；缓粘结预应力；大跨度；施工技术 [中图分类号]TU757 [文献标识码]A [文章编号]1002-8498(2017)03-0048-03 Key Construction Technology for Retard-bonded Prestressing Hollow Floor Structure Hao Yusong' Zhang Xuhui? Houxu Xinyi' Wu Guohui (1.Beijing Building Construction Research Institute Co.Ltd.Beijing 100039 China;2.Beijing Military Command Infrastructure Barracks Beijing 100041 China;3.Beijing Uni-Construction 4th Development and Construction Co.Ltd.Beijing 100026 China;4.Beijing Uni-Construction Group Co.Lad.Beijing 100101.China) Abstract:Retard-bonded prestressing steel strand technology inherits the advantages of bonded and unbonded prestressing and makes up for their deficiencies.Application of retard-bonded prestressing hollow floor structure will effectively improve the bearing capacity of the structure increase space of the structure also improve the seismic performance and durability of the structure.It introduces the application and construction points of retard-bonded prestressing hollow floor structure in this paper. Key words:concrete;floors;prestressing;retard-bonded prestressing;large span;construction ...