Double-column-cage large-diameter prefabricated tubular pile

A prefabricated pipe pile and large-diameter technology, applied in sheet pile wall, construction, infrastructure engineering, etc., can solve the problems of deflection, deflection or displacement of circular stirrups, affecting the production quality of large-diameter prefabricated pipe piles, etc.

Active Publication Date: 2021-10-29
福建宝丰管桩有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the two layers of steel column cages are set, deflection or displacement between the two steel column cages is prone to occur before pouring, especially during pouring...

Method used

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  • Double-column-cage large-diameter prefabricated tubular pile
  • Double-column-cage large-diameter prefabricated tubular pile
  • Double-column-cage large-diameter prefabricated tubular pile

Examples

Experimental program
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Effect test

Embodiment 1

[0042] As shown in the figure, to make a large-diameter prefabricated pipe pile with a double-column cage, first make a double-fork elliptical inner and outer hoop column 2, then stack several double-fork elliptical inner and outer hoop columns 2 up and down, and then stack the double-fork elliptical inner and outer hoop columns 2 The steel bar 1 of the connecting column is fixed on the inner and outer hoop column 2 of the ellipse to form a double-layer reinforcement column cage with an inner layer hoop column and an outer layer hoop column, and then the installation piles are fixed at both ends of the double-layer reinforcement column cage according to common methods Then install the centrifugal steel formwork, then pour concrete, after centrifugal compaction, curing and formwork removal, a double-column cage large-diameter prefabricated pipe pile is obtained.

[0043] The double-fork elliptical inner and outer hoop columns 2 include a set of inner fork elliptical stirrups 3, ...

Embodiment 2

[0056] A method for manufacturing a large-diameter prefabricated pipe pile with a double-column cage, comprising the following steps:

[0057] ⑴Prepare concrete, column steel bar 1, bar steel bar, binding steel wire and pile head plate according to the design requirements.

[0058] (2) Make several outer circular stirrups 9 with steel bars according to the design requirements, and then the radius length R of the outer circular stirrups 9 and the included angle A between the plane where the large major axis ellipse 7 is located and the plane where the circular stirrup 5 is located As a benchmark, make several inner circle stirrups 8, large major axis ellipse 7, small major axis ellipse 6 and temple top triangle 10 with bar steel bar. Set the inner 9 of the outer circular stirrup to install n end-to-end closed-loop side brace top triangles 10; then the radius length of the inner circular stirrup 8 is made into R cos (360 / 2n), and the large major axis ellipse 7 The short axis is...

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Abstract

The invention relates to a double-column-cage large-diameter prefabricated tubular pile, and belongs to the technical field of building deep foundation tubular piles. The double-column-cage large-diameter prefabricated tubular pile comprises concrete, column steel bars, pile head plates and double-fork elliptical inner and outer tension band columns, wherein a plurality of double-fork elliptical inner and outer tension band columns are stacked up and down, then the column steel bars are fixedly connected to the inner and outer tension band columns to form a double-layer steel bar column cage, then the pile head plates are connected, a centrifugal steel mold is installed, concrete is poured, and the double-column-cage large-diameter prefabricated tubular pile is obtained through centrifugal compaction, maintenance and mold removal; the double-fork elliptical inner and outer tension band columns are formed by fixedly assembling and connecting inner fork elliptical stirrups, outer fork elliptical stirrups and upper and lower bottom coplanar circular stirrups; and the coplanar circular stirrups are formed by fixedly assembling and connecting inner circular stirrups, outer circular stirrups and a plurality of side support top triangles. The double-column-cage large-diameter prefabricated tubular pile has the beneficial effects that the inner circular stirrups and the inner fork elliptical stirrups form an inner steel reinforcement cage, the outer circular stirrups and the outer fork elliptical stirrups form an outer steel reinforcement cage, and the inner steel reinforcement cage and the outer steel reinforcement cage are firmly connected through the side support top triangles, so that the inner steel reinforcement cage and the outer steel reinforcement cage cannot deflect.

Description

technical field [0001] The invention relates to the technical field of prefabricated reinforced concrete pipe piles used for deep foundations of buildings, in particular to a large-diameter pipe pile with double-column cages. Background technique [0002] At present, a large number of concrete prefabricated pipe piles are used in the field of construction. According to the different construction environments, they are divided into hollow prefabricated pipe piles and solid prefabricated pipe piles. Hollow prefabricated pipe piles include PHC, PC, PTC piles, etc. According to wall thickness, diameter, Pile, reinforcement, and whether to apply prestress are subdivided into various types. During construction, prefabricated piles are driven, pressed or vibrated into the soil through pile sinking equipment to improve the bearing capacity of the ground foundation. [0003] Due to the advantages of low cost, controllable quality, short construction period, and environmental protecti...

Claims

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Application Information

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IPC IPC(8): E02D5/30
CPCE02D5/30E02D2300/002E02D2200/16E02D2200/1621
Inventor 唐雨辰张波崔晶琼
Owner 福建宝丰管桩有限公司
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