Shearing reinforcing type full-grouting sleeve

Abstract

The invention discloses a shearing reinforcing type full-grouting sleeve which comprises a sleeve body, wherein the sleeve body is of a tubular structure; elastic rubber sealing rings are arranged at the openings of two ends of the sleeve body; a grouting hole is formed in the side wall close to the opening of one end; a discharge hole is formed in the side wall close to the opening of the other end; bolt holes are formed in the side wall along the sleeve body; anti-shearing bolts are arranged inside the bolt holes. The shearing reinforcing type full-grouting sleeve is wide in material resource, simple to machine and manufacture and reliable in property, greatly overcomes the defects that the conventional cast iron or cast iron steel sleeve is complex to manufacture and high in cost, a mechanical milling sleeve is labor and time waste, and the like, can be widely applied to assembled type concrete structures, and has wide engineering application prospects.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a slurry-anchored sleeve connector used for connecting steel bars between prefabricated concrete components. Background technique [0002] Prefabricated concrete structures, as a structural form in line with industrial production methods, have the advantages of fast construction speed, low labor intensity, less noise pollution and wet work, and easy control of product quality, and have been widely used in developed countries. The construction method of prefabricated assembly can effectively save resources and energy, improve the utilization rate of materials in realizing building energy saving and structural performance, overcome the restrictions of construction site and environmental conditions on site construction, reduce the number of on-site construction labor force, and reduce construction waste And the adverse impact of construction on the environment, impr...

AI Technical Summary

Problems solved by technology

The above two types of sleeves have their own disadvantages. The cast iron (steel) sleeve has a bulky appearance and high technical requirements; although the machined sleeve is relatively strong, it is still relatively heavy, and the material consumption is large, the production cost is high, and the production cost is high. low efficiency

In summary, both the above two sleeves have disadvantages such as difficult processing, bulky form, and high cost.

[0006] Chinese patent document CN102071774A discloses a plug-in steel bar connecting sleeve and its construction method. The connecting sleeve has a tapered thread inside to play a shearing effect. The height of the tapered thread is small and the shearing effect is limited. Especially when this type of sleeve is used to connect steel bars with larger diameters, the disadvantage of poor shear resistance is more obvious

[0007] Chinese patent document CN102900201A discloses a slurry-anchored steel bar connecting sleeve and its manufacturing mold and manufacturing method. The connecting sleeve is extruded through a specific mold to form convex ribs and grooves inside the sleeve body , when the cement grouting material is poured inside the sleeve body, the convex ribs and grooves play the role of shear resistance. The shear resistance effect of this shear key is obvious, but the processing is more complicated, time-consuming and laborious, and has a great impact on reducing the cost of the sleeve. unfavorable

[0008] Chinese patent document CN102116075A discloses a new type of cement grouting steel bar connecting joint. The connecting sleeve is a rolled section steel with a circular or polygonal shape, and the holes of the connecting sleeve are equal-diameter round holes. After the cement grouting material is poured into the sleeve body, the raised ring rib connecting the inner wall of the sleeve and the ring at the hole end of the sleeve play a shearing role when the steel bar is stretched or compressed, and the shearing effect is obvious, but The sleeve processing is still relatively complicated, and the processing is time-consuming and laborious, which is not conducive to reducing the sleeve cost

[0009] In summary, the existing sleeves have disadvantages such as difficult processing and high cost, which are not conducive to the development of my country's current housing industrialization and construction industrialization

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