Mounting and fixing device for pre-cast shear wall and use method of mounting and fixing device

Abstract

The invention discloses a mounting and fixing device for a pre-cast shear wall and a use method of the mounting and fixing device. The mounting and fixing device comprises an anchoring concealed dovetail, a fine-tuning bolt bar and a fastening nut, wherein a cavity is formed in one end of the anchoring concealed dovetail; an internal thread is formed in the inner wall of the cavity; two ends of the fine-tuning bolt bar are respectively connected with the anchoring concealed dovetail and the fastening nut via threads. The use method comprises the following steps: S1, in plant production of composite floor slabs, the anchoring concealed dovetail is pre-buried; S2, the fine-tuning bolt bar is connected with the anchoring concealed dovetail; S3, when concrete reaches an early-stage strength, and an upper pre-cast wall is well mounted, the lower end of a telescopic adjustable support rod is placed on the fine-tuning bolt bar, and the telescopic adjustable support rod and the fine-tuning bolt bar are fastened and connected due to screwing of the fastening nut. According to the mounting and fixing device and the use method, not only can damage on water pipelines, electricity pipelines, fire pipelines and the like which are pre-buried in the composite floor slabs be avoided, but also the construction period is shortened effectively; moreover, the level of construction industrialization as well as those of plant factorization and modularization is realized.

Description

technical field [0001] The invention belongs to the field of building industrialization, and in particular relates to a prefabricated shear wall installation and fixing device and a use method thereof. Background technique [0002] At present, civil construction projects adopt construction industrialization construction technology. The temporary fixation of the prefabricated shear wall installation usually uses telescopic adjustable support rods to temporarily fix the prefabricated wall panels. The telescopic adjustable support rods and prefabricated shear wall panels are connected by bolts. The telescopic adjustable support rod is connected to the floor by drilling holes with an electric hammer on the horizontal cast-in-place concrete on the upper part of the laminated floor. It is necessary to wait for the horizontal cast-in-place concrete on the floor to be formed and reach a certain strength before installation. The top explosion screws are installed too early, and the c...

AI Technical Summary

Problems solved by technology

[0002] At present, civil construction projects adopt construction industrialization construction technology. The temporary fixation of the prefabricated shear wall installation usually uses telescopic adjustable support rods to temporarily fix the prefabricated wall panels. The telescopic adjustable support rods and prefabricated shear wall panels are connected by bolts. The telescopic adjustable support rod is connected to the floor by drilling holes with an electric hammer on the horizontal cast-in-place concrete on the upper part of the laminated floor. It is necessary to wait for the horizontal cast-in-place concrete on the floor to be formed and reach a certain strength before installation. The top explosion screws are installed too early, and the concrete strength cannot meet the force requirements of the wall panel installation support. There are serious quality and safety hazards. The construction site Often it takes several days to install the upper layer of wall panels after the concrete is poured on the horizontal cast-in-place belt of the floor, which directly limits the construction progress of the upper layer of wall panels; The method of temporarily fixing the wallboard restricts the progress of the prefabricated wallboard installation. During the installation of the prefabricated wallboard, the operator can only use the electric hammer to drill the hole after the wallboard is hoisted in place and the position of the top explosion screw is determined. Due to the large distribution of steel bars on the floor And the position cannot be determined. It is easy to drill the steel bar during the drilling process, and then re-drill the hole. Sometimes it is necessary to drill three or four holes to avoid the floor steel bar to install a top explosion screw. During this process, the vertical lifting equipment needs to be hung all the time The prefabricated wall panels cannot be unhooked, which not only slows down the installation speed of the wall panels, but also greatly reduces the working efficiency of the tower crane; There are many and the location cannot be determined. When installing the top explosion screw drilling, the water, electricity and fire protection pipelines in the floor may be damaged, leaving quality problems for water, electricity and fire protection.

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