A separate combined grouting sleeve and connection method

Abstract

The invention discloses a separated composite grouting sleeve. The separated composite grouting sleeve comprises an inner joint and an outer joint, wherein pipe bodies of the inner joint and the outerjoint are hollow. The inner joint and the outer joint are matched mutually. A plurality of screw holes penetrating through the pipe bodies are formed in the pipe walls of the inner joint and the outer joint correspondingly, and in a sleeved connection state, the screw holes are overlapped and fixed through matched bolts. A grouting hole is formed in the pipe wall at the outer side end of the outer joint, and a grout outlet hole is formed in the pipe wall at the outer side end of the inner joint. The guarantee measure of bolt connection is added on the basis of a traditional grouting sleeve connecting technology, thus a traditional grouting sleeve construction process and technological measures are still suitable for a sleeve connecting piece, and the separated composite grouting sleeve has the advantages of simple structure, convenient operation, high practicability, reliable connection and the like; and the separated composite grouting sleeve is reasonable in structure, reliable in connection and easy to operate so that the connecting quality of a grouting sleeve joint can be improved on the basis of an existing grouting process and an existing construction technology, the defectthat the connecting quality of a grouting sleeve joint in a fabricated structure is hard to ensure is overcome, and the separated composite grouting sleeve has the quite high practicability and wideapplicability.

Description

technical field [0001] The invention relates to a grouting sleeve, in particular to a separate combined grouting sleeve and a connection method. Background technique [0002] The prefabricated concrete structure refers to the concrete structure that is assembled after the main force-bearing members in the concrete structure are prefabricated in the factory, and then transported to the construction site. The prefabricated structure is the need for the development of my country's construction industrialization, and has the characteristics of fast construction speed, low energy consumption and green environmental protection. [0003] The prefabricated structure is one of the important directions of the development of building structures in my country, and it is also the structural form that is currently being promoted. In prefabricated buildings, the reliable connection between prefabricated parts is the key to ensuring the safety of the structure, and it is also a prerequisit...

AI Technical Summary

Problems solved by technology

[0007] The above two inventions improve the connection performance by adding rigid fillers in the sleeve, but adding fillers also further compresses the gaps in the sleeve and squeezes the space for pouring mortar. Affect the fluidity and continuity of the grouting material, and then affect the anchoring effect of the grouting material, which will easily lead to connection failure

In addition, the processing of the sleeve connectors in the above two methods is complicated and costly. In essence, it still only relies on the bonding and anchoring performance of high-performance mortar to realize the connection of steel bars, which has great limitations in practical applications.

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