Prestressed concrete precast pile in form of mesh reinforcements

Abstract

The invention discloses a prestressed concrete precast pile in the form of mesh reinforcements. The precast pile comprises a concrete pile body and a reinforcement cage arranged inside the concrete pile body, wherein the reinforcement cage comprises at least prestressed reinforcements and a reinforcing mesh fixedly connected with the prestressed reinforcements. According to the prestressed concrete precast pile, the reinforcing mesh is adopted as stirrups and fixedly connected with the prestressed reinforcements, so that a reinforcement framework is formed; when the formed tubular pile bears horizontal loads, the reinforcement framework formed by the mesh reinforcements provides higher lateral stiffness and higher capacity of preventing diagonal cracks from generating and developing for the precast pile. Besides, the precast pile has the advantages as follows: the structure is simple; materials are convenient to obtain and easy to purchase; and the like.

Description

technical field [0001] The invention belongs to the field of pipe piles, in particular to a prestressed concrete prefabricated pile in the form of grid reinforcement. Background technique [0002] Prestressed concrete pipe piles, also known as pipe piles or PHC (Prestressed high-intensity concrete), were developed from precast concrete piles invented by Hennebigue in 1894. In 1906, precast concrete piles with spiral stirrups appeared. In 1915, the forming method of centrifugally compacted concrete invented by Australian W.R. Hume was used to manufacture annular pipe piles and conical piles. There are many countries in the world that research, produce and use prestressed pipe piles, such as the United States, Japan, and Canada. The prestressed high-strength concrete pipe pile is composed of a cylindrical pile body, steel hoops, end plates, prestressed steel bars and spiral stirrups. It can provide large vertical bearing capacity and certain lateral stiffness, and the use of...

AI Technical Summary

Problems solved by technology

[0003] At present, the research and development of prestressed high-strength concrete pipe piles mainly focus on improving their vertical bearing capacity, and there are few studies on the seismic performance of prestressed high-strength concrete pipe piles.

Images