Steel bar eccentric connection half grouting sleeve and using method thereof

Abstract

The invention discloses a steel bar eccentric connection half grouting sleeve and a using method thereof, which belong to the technical field of concrete construction, and can reduce the thickness of protective layers, prevent concrete from cracking, improve project quality, are further beneficial to speed up construction progress, and shorten construction period. The steel bar eccentric connection half grouting sleeve comprises a sleeve body which is provided with a grouting hole and a discharging hole, wherein a thread hole is arranged on the upper portion of the sleeve body, a lower inner cylinder is arranged on the lower portion of the sleeve body, and the thread hole and the lower inner cylinder are communicated with each other. The steel bar eccentric connection half grouting sleeve is characterized in that the thread hole and the lower inner cylinder are eccentrically arranged, and barbs are arranged on the inner surface of the lower inner cylinder. The method for using the steel bar eccentric connection half grouting sleeve is that: the surfaces of exposed steel bars of assembled components are treated through threads, and the exposed steel bars are mechanically connected with the thread holes; exposed steel bars of components to be assembled are inserted into the lower inner cylinder, thereby enabling inserted lengths to meet specified anchorage lengths; and grouting materials are filled into the grouting hole until being filled into the whole inner cylinder, and the strength is calculated through cross sections after the grouting materials achieve specified strength.

Description

technical field [0001] The invention belongs to the technical field of concrete construction, and in particular relates to a steel bar eccentrically connected semi-grouting sleeve and a using method thereof. Background technique [0002] In recent years, the application of prefabricated concrete buildings has become more and more extensive. According to the design method of the cast-in-place process, the connection between the prefabricated assembled components depends on the butt joint of the steel bars of the traditional straight sleeve, which will lead to an increase in the concrete protective layer, making the concrete easier to crack and affecting the quality of the project. But this problem has not been effectively resolved, and was once ignored. [0003] At present, steel bar butt joints with straight sleeves are used in prefabricated concrete buildings. The connection of steel bars is one of the most critical processes in the construction process of prefabricated c...

AI Technical Summary

Problems solved by technology

According to the design method of the cast-in-place process, the connection between the prefabricated assembled components depends on the steel bar butt joint of the traditional straight sleeve, which will lead to an increase in the concrete protective layer, making the concrete easier to crack, and affecting the quality of the project

However, this problem has not been effectively solved and was once ignored

The connection of steel bars is one of the most critical processes in the construction process of prefabricated concrete buildings. Therefore, in order to avoid the safety hazard of concrete cracking caused by the traditional steel bar sleeve connection, it is necessary to design a new type of steel bar sleeve

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