Non-prestressed centrifugal concrete pile

Abstract

The invention discloses a non-prestressed centrifugal concrete pile, which is characterized by comprising a centrifugal concrete pile body, a non-prestressed main bar, a spiral stirrup and two end plates, wherein the non-prestressed main bar is longitudinally distributed and is welded or bound on the spiral stirrup; and the two ends of the non-prestressed main bar are welded respectively or anchored on the two end plates through anchor holes. Based on the conventional non-prestressed centrifugal concrete pile, a prestressed main bar which is positioned on a reinforcement framework and can longitudinally pass through the entire framework is replaced by the non-prestressed main bar, a centrifugal molding process is used in a production process and a part of residual water is brought out centrifugally, so that concrete is more compact. The advantages of a centrifugal pile and a solid square pile are brought into full play, and the centrifugal concrete pile which has high vertical bearing capacity and high horizontal bearing capacity of a pile foundation and can meet a seismic resistance requirement is provided. Simultaneously, a prestress application process is eliminated, so that the non-prestressed centrifugal concrete pile is produced by a production method which is simpler than the conventional production method of a prestressed centrifugal concrete pile, and production efficiency is higher.

Description

technical field [0001] The invention relates to a centrifugal concrete pile, in particular to a non-prestressed centrifugal concrete pile with high vertical bearing capacity and high horizontal bearing capacity endowed to the pile foundation, belonging to the field of building materials. Background technique [0002] Prestressed concrete pipe piles and square piles and prestressed high-strength concrete pipe piles and square piles have the characteristics of high single pile bearing capacity, factory prefabrication, easier quality control than on-site construction, fast on-site construction, and lower building foundation costs. It replaces the immersed tube piles, reinforced concrete prefabricated square piles, bored piles and steel pipe piles, which are commonly used in construction engineering pile foundations, and has been used in more and more projects in my country. Prestressed concrete pipe piles and square piles adopt prestressing technology and centrifugal technology,...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problem of insufficient horizontal bearing capacity of existing prestressed concrete pile foundations, overcome the shortcomings of prefabricated solid square piles or low production efficiency of cast-in-situ piles, and give full play to the advantages of centrifugal piles and solid square piles. On the basis of the reinforcement design and production process of existing prestressed centrifugal concrete piles, design a non-prestressed centrifugal concrete pile with high vertical bearing capacity, horizontal bearing capacity and production efficiency, which can meet the seismic requirements

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