Pipe pile tensioning mechanism

Abstract

The invention belongs to the technical field of buildings, and relates to a pipe pile tensioning mechanism. The mechanism comprises a first tensioning plate assembly and a second tensioning plate assembly; the first tensioning plate assembly is located at the end of a pipe mold, and when being tensioned, the first tensioning plate assembly can be pressed at the end of the pipe mold; the second tensioning plate assembly is located in the pipe mold, and when being tensioned, the second tensioning plate assembly can axially move along the pipe mold; the second tensioning plate assembly is fixedly connected with a tensioning lead screw assembly, and a positioning plate located in the pipe mold is fixedly connected to the tensioning lead screw assembly detachably; and the positioning plate is matched with the inner diameter of the pipe mold, and when the positioning plate is tensioned, the outer wall of the positioning plate can make tight contact with the inner wall of the pipe mold and can axially move along the pipe mold. When the pipe pile tensioning mechanism conducts tensioning, the end face can be prevented from inclining, and therefore the tensioning quality is improved.

Description

Technical field [0001] The invention belongs to the technical field of construction and relates to a pipe pile tensioning mechanism. Background technique [0002] In the production of pipe piles, when the steel cage or the axial main reinforcement and the concrete cloth in the pipe mold are completed, the pre-stressed tension must be carried out first. The pre-stressed tension is to add tension in the component in advance, so that the pre-stressed tension is applied. Tensile members bear tensile stress, which in turn causes them to produce certain deformations to cope with the load on the steel structure itself, including the load of the roof's own weight, wind load, snow load, earthquake load, and so on. Generally, steel strands, jacks, anchor plates, and clips are used for tensioning. [0003] Before the engineering structural components bear the external load, pre-compression stress is applied to the steel bars or steel strands in the tension module to improve the bending resis...

AI Technical Summary

Problems solved by technology

However, it is not difficult to find through careful observation that there is no positioning mechanism between the tension plate and the baffle. During the pulling process of the tension plate, if the tension plate is tilted or misaligned in the horizontal direction, the tension screw assembly will directly drive the baffle to generate sideways If it is tilted, the steel cage is also in a state of inclined stretching during stretching, the stretching process is not straight, and the stretching quality is affected

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