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FRP wrapped recycled concrete composite tubular pile

A technology of recycled concrete and combined pipes, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering. It can solve the problems of increasing workload and construction costs, consuming steel molds or wooden molds, and achieving the elimination of formwork and saving steel. Model, the effect of speeding up the construction

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 recycled concrete composite tubular pile
  • FRP wrapped recycled concrete composite tubular pile
  • FRP wrapped recycled concrete composite tubular pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] like Figures 1 to 4 As shown, the present invention outsources FRP recycled concrete composite pipe pile (outer diameter is 400mm, wall thickness 95mm, length is 9m), mainly is made of FRP pipe 1, circular reinforcement 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 (that is, the FRP pipe is outsourced with longitudinal steel bars, spiral stirrups, and cross-shaped steel frame), and recycled concrete 3 is poured in the tube, and the recycled concrete is made along the surrounding surface of the FRP pipe by centrifugal technology. Uniform and dense, so that the recycled concrete forms a circular cavity in the FRP pipe. in,

[0025] The FRP pipe is spliced ​​by two upper and lower semicircular FRP pipes, with an outer diameter of 400mm and a wall thickness of 5mm, and the interface is sealed and glued with FRP adhesive.

[0026] The circular steel cage frame is we...

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Abstract

The invention discloses an FRP wrapped recycled concrete composite 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 by the recycled concrete. 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, and the bearing capacity and stability of the single pile are improved. 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, and in particular relates to an outsourcing FRP recycled concrete composite 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/30
CPCE02D5/30E02D2300/0051
Inventor 应敬伟周彬潘晓冰温小艳秦建团寥成文田锦尚史金华蒙秋江周芾瑶陈炜丁锐叶增鑫董宏源宋智成
Owner GUANGXI UNIV
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