Prestressed concrete solid square pile and making method thereof

Abstract

The invention discloses a prestressed concrete solid square pile and a making method thereof, wherein the square pile comprises a steel reinforcement cage, four non-prestressed additional main reinforcements, a pile tip, a pile end mesh sheet and concrete, wherein the main reinforcements of the steel reinforcement cage use prestressed concrete steel rods; the steel reinforcement cage comprises an internal cage body and an external cage body; the external cage body is square; the internal cage body is in the form of a quadrangle with four arch edges; the internal cage body and the external cage body are respectively welded with each other through a stirrup in a spirally sliding way; the four non-prestressed additional main reinforcements use ordinary steel reinforcements and respectively positioned at four corners of the external cage body at the pile end; the pile end mesh sheet is put at the top end of the pile; and the steel reinforcement cage, the non-prestressed additional main reinforcements, the pile tip and the pile end mesh sheet are integrally cast by using high-strength concrete to form a whole solid square pile. According to the invention, as the pile main reinforcements use prestressed high-strength steel reinforcements, the stirrup is molded through mechanically rolling and welding high carbon steel wires and the pile tip and a pile body are connected and integrally cast, the integral strength of the pile can be enhanced, the cost of the connection between the pile tip and the pile body is reduced and the rock penetrating capacity of the square pile is enhanced.

Description

technical field [0001] The invention relates to the field of production and processing of building materials, in particular to a prestressed concrete solid square pile and a method for manufacturing the prestressed concrete solid square pile. Background technique [0002] There are many kinds of prestressed concrete solid square piles and their manufacturing methods in the prior art, such as a kind of steel pile tip full prestressed concrete whole solid square pile and its processing method, its prestressed main reinforcement setting and distribution are unreasonable, It affects the overall structural strength of the pile body; because when making the pile body, the stirrups are made first, then the prestressed main reinforcement is penetrated, and finally the binding is performed at the junction of the stirrups and the prestressed main reinforcement, which is not only cumbersome to process, but also very inefficient. It is difficult to ensure that the stirrups fit together ...

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of prestressed concrete solid square piles and their manufacturing methods in the prior art, such as a kind of steel pile tip full prestressed concrete whole solid square pile and its processing method, its prestressed main reinforcement setting and distribution are unreasonable, It affects the overall structural strength of the pile body; because when making the pile body, the stirrups are made first, then the prestressed main reinforcement is penetrated, and finally the binding is performed at the junction of the stirrups and the prestressed main reinforcement, which is not only cumbersome to process, but also very inefficient. It is difficult to ensure that the stirrups fit together with the prestressed main reinforcement

In addition, because the reinforcement cage adopts the binding process, according to the design requirements, the diameter of the prestressed main reinforcement of the reinforcement cage must be more than 20% larger than that of the prestressed reinforcement of the reinforcement cage using the welding process, and the amount of prestressed reinforcement of the reinforcement cage is large. Many consumables greatly increase the manufacturing cost

There is also a prestressed concrete solid square pile and its manufacturing method, which adopts a plurality of reinforcement cages. In the actual production process, when the prestressed main reinforcement is more than 12, the production process is cumbersome and difficult to control.

In addition, multiple reinforcement cages cannot be used to place the pile tips at one time.

If the pile tip is required, it needs to be connected to the pile body separately, which is both troublesome and affects the overall strength of the pile body

In the above two methods, the process of connecting the pile body and the cap is complicated and the cost is high

[0003] In addition, the application of the above two methods will also be limited in hydrogeological conditions with high corrosion resistance requirements such as saline-alkali land in coastal areas.

Images