Rectangular Pre-stressed reinforced concrete hollow pile with internal thread or internal groove and method for processing hollow pile

Abstract

The invention relates to a rectangular pre-stressed reinforced concrete hollow pile, which comprises a rectangular pile body and rectangular metal end plates. The rectangular pile body comprises a reinforcement cage and concrete and is axially provided with a through central round hole; the rectangular metal end plates are arranged at the two ends of the rectangular pile body and correspond to the central round hole of the rectangular pile body; central round holes are also formed in the rectangular mental end plates; an internal thread structure, or an internal groove structure, or a tooth-shaped bulge, or a plurality of pits, or a plurality of bumps is or are arranged on the inner wall of the central round hole of the rectangular pile body to make the bonding force between reinforce concrete of a lower-edge part of a building bearing platform and the central round holes strong, so the problem that the reinforce concrete of the lower-edge part of the building bearing platform slips off from the central round holes is effectively solved, and a building on the bearing platform is prevented from turning over due to shaking or swinging under the action of external force; therefore, the hollow pipe has good safety. The rectangular pile body is processed by the conventional method, the internal thread structure or the internal groove structure on the inner wall is processed by a cutting or extrusion mode, and the processing technology is simple, low in cost and high in efficiency.

Description

Technical field: [0001] The invention relates to a concrete pile and a processing method thereof, in particular to a prestressed reinforced concrete rectangular hollow pile and a processing method thereof. Background technique: [0002] Existing prestressed reinforced concrete rectangular hollow piles, such as the Chinese patent "prestressed concrete hollow square pile and its forming mold", the patent number is 200910027814.3, "prestressed concrete hollow square pile, including square pile body and square metal end plate, square The pile body contains steel cages and concrete. There is a through central round hole in the axial direction of the square pile body. Square metal end plates are arranged at both ends of the square pile body, corresponding to the central round hole on the square pile body. There is also a central round hole on the plate, welding grooves are provided on the periphery of the square metal end plate, and anchor holes are symmetrically arranged on the s...

AI Technical Summary

Problems solved by technology

"When this kind of prestressed reinforced concrete hollow square pile is used, the upper concrete cap is connected with reinforced concrete by pouring reinforced concrete in the central hole of the square pile. The joint part of the central circular hole is a smooth cylindrical surface, and the joint force between the two is not strong. Under the external force caused by wind load or uneven settlement, the building on the cap may produce concrete in the descending part of the cap. If it is pulled out from the central round hole of the prestressed reinforced concrete hollow square pile, the building on the cap may be in danger of overturning, and the safety is poor.

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