Novel connecting structure of prestressed concrete pile and cushion cap

Abstract

The invention discloses a novel connecting structure of a prestressed concrete pile and cushion cap. The novel connecting structure is mainly characterized in that a pile cap is arranged around a pile body; a base cushion cap is connected with the pile body by the pile cap; an end plate is arranged at the top of the pile body and provided with a reinforcing steel bar; a thread is arranged on one end of the outer wall of the pile body; the pile body consists of a reinforcement cage and core concrete; the reinforcement cage is arranged in a cavity of the pile body; a round steel support plate is arranged at the bottom end of a longitudinal bar, and core concrete is poured in the cavity of the concrete pile above the round steel support plate; and a concrete cushion layer is positioned below the base cushion cap. The novel connecting structure of the prestressed concrete pile and the cushion cap changes the traditional mode of inward core extraction resistance, a pile top is connected with the base cushion cap by the pile cap, and the connecting structure ensures the connection of the prestressed concrete pile and the cushion cap to be safer and more reliable, thus greatly improving the connection strength of the cushion cap and the pile top, being simple in processing technique, saving manufacturing cost of the engineering, and being high in efficiency and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a connection structure between a novel prestressed concrete pile and a cap. Background technique [0002] With the acceleration of the urbanization process in our country, the development and utilization of underground space has been developed rapidly. The number of buildings with anti-lifting requirements is increasing, and the depth is getting deeper and deeper. The problem of anti-floating in underground space is becoming more and more prominent. Engineering accidents caused by not considering the anti-floating measures of the structure or taking improper measures. The prestressed concrete pile can effectively control the cracking of the pile body, and it has been widely used as a compression pile in pile foundation engineering. In recent years, the application range has been gradually expanded to the uplift pile foundation. [0003] At present, the connectio...

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Problems solved by technology

[0004] The present invention aims at the uplifting load in the connection method of the existing prestressed concrete pile and the cap, sometimes the part of the concrete poured in the pile will be pulled out, and the connection between the pile top and the cap will fail (that is, the connecting steel bar will be pulled off. or pull off) and other situations, resulting in safety accidents and other shortcomings, a new type of connection structure between prestressed concrete piles and caps is proposed

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