Connection structure of prestressed reinforced concrete hollow square pile

Abstract

The invention discloses a connection structure of a prestressed reinforced concrete hollow square pile. The connection structure comprises an end plate, an internal pressing buckle part and an external fastener, wherein the end plate is arranged on the connecting end of a pile body and is composed of an end socket plate and an apron plate, the radial size of the end socket plate is identical with that of the pile body, the apron plate is sheathed on the end socket plate, the internal pressing buckle part is sheathed on the outer side of the end socket plate, and the external fastener is sheathed on the outer side of the internal pressing buckle part and forms axial clamping stagnation with the internal pressing buckle part. Compared with a welding pile, the connection structure disclosed by the invention has the advantages of being free of limitation of weather and environments of construction sites, being simple in structure, having low accuracy requirements on parts, being simple and convenient for construction, being capable of saving lots of time, being low in cost and having high reliability.

Description

technical field [0001] The invention relates to a non-welded mechanical pile connection structure, in particular to a connection structure of prestressed reinforced concrete hollow square piles. Background technique [0002] The connection mode of existing prestressed reinforced concrete piles is basically the same as the connection mode of pressure-bearing piles commonly used in buildings, and the pile connection is realized by manual welding of end plates. The biggest advantage of the welded pile connection method is that the cost is low and it is suitable for various soil layers, but manual welding is easily affected by weather and human factors, the welding quality is not stable enough, and the structure of the pile joint is special, lacking effective detection means, so the joint quality and reliability of the weld seam is not high, and there are potential safety hazards. In addition, after the pile is welded to the pile, it needs 8-15 minutes of natural cooling before...

AI Technical Summary

Problems solved by technology

The biggest advantage of the welded pile connection method is that the cost is low and it is suitable for various soil layers, but manual welding is easily affected by weather and human factors, the welding quality is not stable enough, and the structure of the pile joint is special, lacking effective detection means, so the joint quality and reliability of the weld seam is not high, and there are potential safety hazards

In addition, after the pile is welded to the pile, it needs 8-15 minutes of natural cooling before continuing to sink the pile, otherwise the quality of the pile connection will be greatly reduced, thus wasting a lot of time and affecting the efficiency of construction

At the same time, welding piles cannot be used on construction sites where flammable and explosive gases such as methane are likely to be generated. This welding pile connection method is limited by the environment of the construction site and has great limitations.

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