Partial prestressed concrete hollow triangular pile

Abstract

The invention relates to a partial prestressed concrete hollow triangular pile; a central through hole penetrating through the whole partial prestressed concrete hollow triangular pile is formed in the longitudinal axis direction of the partial prestressed concrete hollow triangular pile; the cross section of the inner periphery of the partial prestressed concrete hollow triangular pile is round; the cross section of the outer periphery of the partial prestressed concrete hollow triangular pile is triangular; the geological dimensions of the cross sections of the inner periphery and the outer periphery of the partial prestressed concrete hollow triangular pile are same in the whole longitudinal axis direction; the partial prestressed concrete hollow triangular pile comprises main ribs extending along the length direction of a hollow square pile and hoop ribs spirally surrounding the main ribs; the main ribs comprise prestressed ribs and non-prestressed ribs; concrete protection layers are arranged inside and outside the hoop ribs; the outsides of the main ribs are connected by the hoop ribs through fixing, roll-welding or binding; the prestressed ribs and the non-prestressed ribs are all positioned at the angles and the edges of triangles defined by the hoop ribs.

Description

technical field [0001] The invention belongs to the construction field, and relates to the improvement of the shape and structure of foundation piles in the construction field, in particular to a partially prestressed concrete hollow triangular pile. Background technique [0002] There are many building materials for foundation pile engineering in the market, such as pipe piles, various square piles, cast-in-situ piles, bored piles, etc. These piles are mainly divided into two categories: non-prestressed components and prestressed components. Prestressed component piles include pipe piles, centrifugal prestressed square piles, etc. Their disadvantages are that they are often brittle, the time from cracking to failure is short, and the ductility of the pile body is poor. When an earthquake occurs, the building collapses instantly, so that the people in the building do not have enough time to escape. [0003] Existing concrete prefabricated components have various cross-sect...

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Problems solved by technology

[0005] Recently, special-shaped triangular piles have also appeared, but the reinforcement ratio is low, and the integrity of the pile body, shear, bending, and tensile properties are difficult to meet the higher engineering requirements

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