Pre-stressed reinforced concrete circular hollow pile with internal thread or internal groove and processing method thereof

Abstract

The invention relates to a pre-stressed reinforced concrete circular hollow pile, which comprises a circular pile body and circular metal end plates, wherein the circular pile body comprises a steel reinforcement cage and concrete, a through central circular hole is arranged on the circular pile body in the axial direction, the circular metal end plates are arranged at two ends of the circular pile body and correspond to the central circular hole on the circular pile body, and the circular metal end plates are also provided with central circular holes; and an internal thread structure, or an internal groove structure, or a tooth-shaped protuberance, or a plurality of pits, or a plurality of convex blocks is / are arranged on the inner wall of the central circular hole of the circular pile body, and the reinforced concrete of a lower extension part of a supporting platform has strong binding force with the central circular hole of the pre-stressed reinforced concrete circular hollow pile, thereby effectively solving the problem that the reinforced concrete of the lower extension part of the supporting platform slips off the central circular hole, really preventing the collapse risk due to shaking or swing of a building on the supporting platform under the action of external force, and achieving good safety. The circular pile body is processed according to the conventional method,the internal thread structure or the internal groove structure on the inner wall is processed in a cutting way or an extrusion way, the processing technology is simple, the cost is low, and the efficiency is high.

Description

Technical field: [0001] The invention relates to a concrete pile and a processing method thereof, in particular to a prestressed reinforced concrete circular hollow pile and a processing method thereof. Background technique: [0002] The existing prestressed reinforced concrete circular hollow pile includes a circular pile body and a circular metal end plate. The circular pile body contains a steel cage and concrete. The axial direction of the circular pile body has a through central circular hole. The metal end plates are arranged at both ends of the circular pile body, corresponding to the central round hole on the circular pile body. Groove, anchor holes are symmetrically arranged on the circular metal end plate; the reinforcement cage includes the main reinforcement and the stirrup, and the stirrup is welded on the main reinforcement in a spiral shape. When this kind of prestressed reinforced concrete hollow round pile is used, reinforced concrete is also poured into th...

AI Technical Summary

Problems solved by technology

When this kind of prestressed reinforced concrete hollow round pile is used, reinforced concrete is also poured into the central hole of the round pile during the pouring of the upper concrete cap to form the descending part of the concrete cap, and the concrete cap and the prestressed reinforced concrete hollow circle The connection of the pile is realized by the combination of the concrete in the descending part of the cap and the central hole of the prestressed reinforced concrete hollow round pile. The joint part is a smooth cylindrical surface, and the joint force between the two is not strong. Under the action of external force caused by wind load or uneven settlement, the concrete on the descending part of the cap may change from the prestressed reinforced concrete to the building on the cap. If the hollow round pile is pulled out from the central hole, the building on the cap may be in danger of overturning, and the safety is poor.

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