目 录1设计原理.......................................................22工程概况.......................................................33对 BDF 管的材质要求.............................................34无粘接预应力空心楼板施工工艺流程...............................45BDF 管安装特别技术措施..........................................45.1BDF 管抗浮计算.............................................55.2BDF 管抗浮措施.............................................65.3横向位移限制措施..........................................75.4BDF 管成品保护.............................................75.5BDF 管破损的处理方法.......................................76混凝土浇筑方法.................................................76.1混凝土输送、浇筑方法......................................76.2混凝土浇筑上浮监测........................................96.3空心楼板混凝土表面处理....................................96.4冬、夏季混凝土养护措施....................................97无粘接预应力工艺流程...........................................97.1预应力钢绞线敷设.........................................107.2锚固端挤压锚挤压工艺.....................................107.3节点安装要求.............................................117.4预应力张拉...............................................117.5锚具保护.................................................118混凝土的养护和拆模检查........................................129结束语........................................................12**世贸中心工程无粘接预应力空心楼盖技术CONSTRUCTION TECHNOLOGY OF PRE-STRESSED HOLLOWFLOOR APPLIED TO BEIJING OFFICE PARK [摘 要] BDF 管是一种比较新型的空心管,它有效解决了现浇空心楼板非抽心成孔技术,被广泛的应用于工业与民用建筑大跨度、大空间、大荷载的现浇空心楼板中。本文从BDF 管的抗浮措施、混凝土振捣、养护方法、无粘结预应力施工等几方面对现浇无粘结预应力空心楼盖技术进行阐述。[关键词] BDF 管；抗浮措施；无粘结预应力现浇混凝土空心楼板在国外已经有几十年的历史，如美国的“现浇芯板体系”和法国 SA TO TO 公司的...
