Horizontal construction joint reinforcing bolt and reinforcing method based on bolt

Abstract

The invention discloses a horizontal construction joint reinforcing bolt and a reinforcing method based on the bolt. The horizontal construction joint reinforcing bolt comprises a wall inner section screw, wherein the two ends of the wall inner section are respectively in threaded connection with a wall outer section screw and a wall connection fixed part; the wall outer section screw comprises abase part, a pedestal part and a screw part; a threaded hole is arranged on the base part, a threaded groove communicated with the threaded hole is arranged on the pedestal part, the threaded hole andthe threaded groove are both coaxial with the screw part, and the threaded hole and the threaded groove are both matched with the wall inner section screw; the wall inner section screw is sleeved bya conical sleeve, the conical sleeve is coaxial with the wall inner section screw, a groove matched with the base part is arranged on the surface of one side facing the wall outer section screw of theconical sleeve, and the base part is embedded into the groove. The horizontal construction joint reinforcing bolt is used for solving the problems that formation of a construction joint at a new-oldwall concrete joint in the prior art is prone to have multiple quality defects, and the purposes of effectively avoiding displacement of a bottom expansion mould of a formwork and solving the qualityproblems of construction joint faulting, pulp leakage, holes and the like are achieved.

Description

technical field [0001] The invention relates to the field of concrete exterior wall construction, in particular to a horizontal construction joint reinforcement bolt and a reinforcement method based on the bolt. Background technique [0002] During the construction of cast-in-place concrete external walls, the completed structure below the construction joint is referred to as "old wall" for short, and the wall to be constructed above is called "new wall". In the prior art, there have always been quality problems such as dislocation (expansion), grout leakage, and holes in the formation of construction joints at the concrete joints of new and old walls. The reason is that the formwork support system at the interface between the old and new wall concrete is not well reinforced, and the formwork reinforcement system lacks a reliable connection with the old wall structure. When the concrete is poured and vibrated, the side pressure on the formwork will expand the lower opening ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a horizontal construction joint reinforcement bolt and a reinforcement method based on the bolt, to solve the problem that the formwork reinforcement system in the prior art lacks a reliable connection with the old wall structure, resulting in construction joints at the concrete joints of the new and old walls There are many quality defects in the forming of the mold, so as to effectively prevent the displacement of the expansion mold at the bottom of the formwork and solve the quality problems such as construction joint misalignment, grout leakage, and holes.

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