Device for detecting anchoring length of reinforcing steel of semi-grout sleeve

Abstract

The invention discloses a device for detecting an anchoring length of a reinforcing steel of a semi-grout sleeve. The device is is characterized in that the device comprises a slurry outlet, a grouting opening, an upper member reinforcing steel, a lower member reinforcing steel, a threaded connection end, a semi-grout sleeve, a grout material, a DC dual-arm bridge, and a test contact connecting piece; the test contact connecting piece is arranged in the semi-grout sleeve and connected with the lower member reinforcing steel; a first connection point is arranged at a portion of the upper memberreinforcing steel extending out of the semi-grout sleeve; a second connection point is arranged at a portion of the lower member reinforcing steel extending out of the semi-grout sleeve; the DC dual-arm bridge is connected with the first connection point and the second connection point through wires. The test contact connecting piece does not affect the grouting quality, the external DC dual-armbridge can display the resistance reading when the circuit is switched on so long as the anchoring length of the reinforcing steel is sufficient, so that on-site detection for the anchoring length ofthe reinforcing steel of the semi-grout sleeve is realized.

Description

technical field [0001] The invention relates to the field of detecting the anchorage length of steel bars, in particular to a device for detecting the anchorage length of steel bars with a semi-grouting sleeve. Background technique [0002] The grouting sleeve is a combination of specially processed sleeves, matching grouting materials and steel bars. The technical principle of the connection is: after the connecting steel bar is inserted into the sleeve, the special grouting material is poured into the sleeve to fill the gap between the sleeve and the steel bar. After the grout is hardened, it forms a tight mesh with the transverse rib of the steel bar and the inner wall of the sleeve, and effectively transmits force between the steel bar and the sleeve, that is, the two steel bars are connected together. The sleeve grouting joint has the advantages of reliable performance, wide applicability, and easy installation. The grouting sleeve connection technology is suitable for...

AI Technical Summary

Problems solved by technology

The detection of the anchorage length is mainly based on process control, and there is no clear detection method on the construction site, which makes it impossible to determine whether the anchorage length of the fully grouted sleeve steel bar meets the requirements of the specification, so that it is impossible to ensure that the force of the steel bar is effectively transmitted to the anchor body

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