FRP wrapped prestress recycled concrete tubular pile

A recycled concrete and prestressed technology, applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of increasing workload and construction cost, consuming steel formwork or wood formwork, etc., to avoid formwork removal process and save steel. The effect of moulding and speeding up the construction speed

Inactive Publication Date: 2016-03-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the current construction technology of prefabricated concrete piles, the production process requires various processes such as formwork support and formwork removal, which consumes a lot of steel formwork or wood formwork, increasing the workload and construction cost

Method used

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  • FRP wrapped prestress recycled concrete tubular pile
  • FRP wrapped prestress recycled concrete tubular pile
  • FRP wrapped prestress recycled concrete tubular pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as Figures 1 to 5 As shown, the present invention outsources FRP prestressed recycled concrete pipe piles (outer diameter 400mm, wall thickness 95mm, and length is 9m), mainly made of FRP pipe 1, circular steel cage skeleton, cross-shaped steel frame 6 and recycled concrete, The circular steel cage skeleton and cross-shaped steel frame are placed in the FRP pipe (namely: the FRP pipe is outsourced with longitudinal prestressed tendons, spiral stirrups, and cross-shaped steel frame), and recycled concrete is poured in the pipe, and the prestressed tendon is stretched using centrifugal technology. The recycled concrete is uniformly dense along the periphery of the FRP pipe, and the recycled concrete 3 forms a circular cavity in the FRP pipe; the circular steel cage skeleton is welded by longitudinal prestressed tendons and spiral stirrups. in,

[0026] The FRP pipe is spliced ​​by two upper and lower semicircular FRP pipes, the outer diameter is 400mm, the pipe thi...

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PUM

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Abstract

The invention discloses an FRP wrapped prestress recycled concrete tubular pile mainly formed by an FRP pipe, a round reinforcement cage framework, cross steel ribs and recycled concrete. The round reinforcement cage framework and the cross steel ribs are arranged in the FRP pipe, and a round inner cavity is formed in the FRP pipe through the recycled concrete. The round reinforcement cage framework is formed by welding longitudinal prestressed tendons and spiral stirrups. An FRP pipe wrapped pile body resistant to corrosion, light and high in strength can be effectively prevented from being corroded, the corrosion problem of the tubular pile is solved, and the durability of a pile foundation is improved. The inner supporting cross steel ribs can fully achieve the respective advantages of steel, prestressed reinforcement and concrete, the stress performance of the recycled concrete is improved, the bearing capacity and stability of the single pile are improved, the lateral rigidity of the pile body is increased, and transverse deformation is reduced. Waste concrete is fully utilized as recycled aggregate, and application and popularization of the recycled concrete in building foundation engineering are facilitated.

Description

technical field [0001] The invention belongs to the field of pile foundation engineering in building foundation engineering, in particular to an outsourcing FRP prestressed recycled concrete pipe pile. Background technique [0002] With the rapid development of the world economy, reinforced concrete structures have entered a period of rapid development, and the construction of new buildings and the demolition of old buildings will produce a large amount of waste concrete. In 2014, my country's construction waste production exceeded 1.5 billion tons. Around 2020, the amount of construction waste generated in my country may reach its peak. Recycling waste concrete can not only reduce the development of natural resources, but also reduce the amount of waste discharged into nature, which has significant social, economic and environmental benefits. However, due to the existence of old mortar, the performance of recycled coarse aggregate is quite different from that of natural c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/58
CPCE02D5/58
Inventor 应敬伟周彬蒙秋江史金华温小艳董宏源丁锐宋智成寥成文周芾瑶田锦尚潘晓冰叶增鑫陈炜秦建团
Owner GUANGXI UNIV
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