Half-thread glue injection type connecting sleeve design method, thread glue injection type steel bar connecting sleeve, and mounting method thereof

Abstract

The invention discloses a half-thread glue injection type connecting sleeve design method, a half-thread glue injection type steel bar connecting sleeve, and a mounting method thereof. The half-thread glue injection type connecting sleeve is formed by combining a steel sleeve, two steel bars with threads at the ends, and an adhesive. One end of the inner surface of the steel sleeve and the outer surfaces of the ends of the corresponding reinforcing steel bars are machined into threads which are in weak engagement. After the steel sleeve is screwed with the two reinforcing steel bars, internal gaps between the steel sleeve and the reinforcing steel bars are filled with the adhesive, and the two reinforcing steel bars are connected into a whole after the adhesive is cured. Thread pitch of the weak occlusion threads is long, and thread teeth are narrow, so that the steel sleeve can connect two steel bars at any interval, and the other ends of the weak occlusion threads are in weak occlusion connection. After the gaps between the steel sleeve and the weakly-engaged reinforcing steel bars are filled with the adhesive, the strong connection between the two reinforcing steel bars by the connecting sleeve can be realized; and the required connecting strength index can be met by adjusting the length of a connecting thread section between the steel sleeve and the weakly-engaged steel bars.

Description

technical field [0001] The application belongs to the technical field of civil engineering and mechanical engineering, and in particular relates to a half-thread glue-injection steel bar connecting sleeve and an installation method thereof. Background technique [0002] In the process of civil engineering construction, it is necessary to reliably connect two independent steel bars, exposed steel bars of two-section fabricated components, and steel bars in two-section steel cages. Currently commonly used steel connectors such as straight thread sleeves, tapered thread sleeves, grouting sleeves, and extruded sleeves have various deficiencies in practical engineering applications: (1) Straight thread sleeves or tapered thread sleeves must ensure that At least one connecting steel bar can move and rotate freely, so it cannot be applied to the connection between two steel bars that have been fixed separately; (2) Extrusion sleeve connection construction requires large hydraulic t...

AI Technical Summary

Problems solved by technology

Currently commonly used steel connectors such as straight thread sleeves, tapered thread sleeves, grouting sleeves, and extruded sleeves have various deficiencies in practical engineering applications: (1) Straight thread sleeves or tapered thread sleeves must ensure that At least one connecting steel bar can move and rotate freely, so it cannot be applied to the connection between two steel bars that have been fixed separately; (2) Extrusion sleeve connection construction requires large hydraulic tools. When the steel bars are dense, the construction Insufficient space, difficult to use; (3) The size of the grouting sleeve is large, and it cannot be used when the steel bars are dense, and post-grouting is required during construction, and the quality of the grouting is difficult to control and detect. When the quality of the grouting is unqualified, it may Cause the connection to fail completely, causing a security incident

Images