GBF管现浇空心板是在现浇钢筋混凝土楼盖结构中采取埋芯成孔工艺,在楼盖内按照设计要求等间距排放GBF管,并在管两端部采取抗浮措施,使管与上下钢筋网片连为一体,浇筑混凝土而成的。GBF管的抗浮固定是现浇空心楼板整个施工过程中的控制重点和难点,控制方法有压筋法和板下钢管固定法两种。 GBF tube cast-in-place hollow slab is embedded in the cast-in-place concrete floor structure into a hole into the hole process, in accordance with the design requirements of the floor discharge GBF pipe at equal intervals and take anti-floating measures at both ends of the pipe, so that pipe and Up and down steel mesh even as one, made of concrete pouring. The anti-floating fixation of GBF pipe is the key and difficult point of control in the whole process of pouring hollow floor slab. There are two control methods: pressure-bar method and steel pipe fixing method.