Box formwork construction method of assembly type box formwork hollow floor

Abstract

The invention relates to a box formwork construction method for an assembly type box formwork hollow floor. The box formwork construction method comprises the following steps of: manufacturing concrete wedge-shaped cushion blocks according to the design thickness of a floor lower flange cast-in-place layer; mounting floor slab bottom ribs, then arranging the wedge-shaped cushion blocks at positions shown in a box formwork design diagram, arranging four wedge-shaped cushion blocks at the bottom of each box formwork, and keeping the small-head ends of the wedge-shaped cushion blocks downwards and the large-head ends of the wedge-shaped cushion blocks upwards; arranging the box formworks at positions of the box formwork design diagram, placing the box formworks on the wedge-shaped cushion blocks, and supporting and positioning the box formworks through the four wedge-shaped cushion blocks; after the box formworks are installed, mounting floor slab surface ribs and inter-box-formwork rib beam steel bars, arranging anti-floating steel bars on the box formworks while the floor slab surface ribs are installed, arranging the anti-floating steel bars in the middles of the upper surfaces ofthe box formworks, and fixing the anti-floating steel bars to a floor slab bottom formwork through iron wires. On the premise that the construction quality is guaranteed, the construction difficulty is reduced, the construction efficiency is improved, and position conflicts between the box formwork positioning structure and the structural stress ribs are avoided.

Description

technical field [0001] The invention belongs to the technical field of floor box mold construction, in particular to a box mold construction method for an assembled box mold hollow floor. Background technique [0002] Assembled box-form hollow floor is a new type of building structure. Compared with traditional beam-slab structures, assembled box-form hollow floor is more suitable for structures with large bays, large spans, and large loads. It can not only effectively reduce the weight of the building , Improve the overall mechanical performance of the floor, and also enhance the thermal insulation, heat insulation, and sound insulation effects of the floor, especially suitable for basements, shopping malls, multi-storey factories, classrooms, meeting rooms, exhibition halls, gymnasiums, civil air defense projects, cinemas and other large rooms , large span, large load, strong sound insulation building structure. [0003] Assembled box formwork The key to the construction ...

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Problems solved by technology

For example, Zhao Hongsheng, Sun Zhong, and Li Honggang co-authored the article "Construction Method of Cast-in-situ Hollow Floor Structure (Hollow Formwork)" ("Building Structure. Technical Communication" in January 2007), in which the box formwork was fixed by using a well-shaped steel bar to support the horse stool. Although a better effect can be achieved by using a reinforced horse stool, the horse stool is likely to conflict with the position of the structural reinforcement during the construction process, and the manufacture and installation of the horse stool will consume a lot of technicians, so a simpler method is needed. Improve current construction methods

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