A side pre-embedded installation method of C-type Hafen groove for concrete structure

Abstract

The invention relates to the field of construction of municipal engineering, and particularly discloses a lateral embedding installing method for a C-type Haffen groove of a concrete structure. The method comprises the following steps of 1, preparing a half section of water stopping screw; 2, welding and assembling an inner-supporting Haffen groove; 3, fixing the inner-supporting Haffen groove andrebars; 4, installing a template. The Haffen groove is easy to install and definite in stress, a rebar net restrains but not limit the groove and needs but not depend on the groove, the influence ofthe rebars on the groove is eliminated, the groove and the template are fitted tightly, the template is not damaged, after installation is finished, the template is firm and stable, the phenomenon ofreworking does not exist, the construction cost is reduced, the installing quality and appearance quality are greatly improved, and the method can be widely applied to embedded channel installing construction.

Description

technical field [0001] The invention relates to the field of municipal engineering construction, in particular to a lateral pre-embedded installation method for a C-shaped Hafen groove in a concrete structure. Background technique [0002] Flat plate embedded parts have been used for many years in the history of Chinese architecture, and they have quite mature experience in both production technology and force analysis. For the application of trough-type embedded parts, it is completely the entry of foreign enterprises in the early stage, and it is widely used in my country's high-end building curtain walls. The application of trough-type embedded parts in comprehensive pipe corridors is not common. The installation method is immature, and the following two installation methods are commonly used. [0003] One is to use T-bolts to fix the trough-type embedded parts on the surface of the formwork before the formwork is packaged, and use the fastening effect of the bolts to ens...

AI Technical Summary

Problems solved by technology

However, this installation method has the following disadvantages: 1. T-bolts are drilled on the template, and the cement slurry overflows along the hole when the concrete is vibrated, causing honeycombs or bosses at this part; The strength of the concrete is low during the formwork, and the concrete around the T-bolts is disturbed, which leads to the weakening of the mechanical performance of the Hafen groove; 3. The positions of the T-bolt holes on the formwork are different. The presence of more bolt holes reduces the service life of the formwork

However, this installation method has the following disadvantages: 1. The Hafen groove is directly welded to the steel mesh to form a whole. When the formwork is installed and the concrete is poured and vibrated, the reinforcement mesh will inevitably be disturbed, resulting in a gap between the Halfen groove and the formwork. , so that the Halfen groove is embedded in the concrete structure; 2. The Halfen groove must be welded vertically on the steel mesh to ensure that the Halfen groove and the formwork are closely attached. If there is a deviation, a wedge-shaped gap will be formed between the Halfen groove and the formwork. Affect the quality of bracket installation

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