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Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure

A technology of reinforced plastics and prestressed steel, applied in infrastructure engineering, sheet pile walls, buildings, etc., can solve the problems of difficult demolition, high demolition cost, and difficult demolition, achieve weak fracture resistance and reduce production costs , The effect of convenient demolition construction

Inactive Publication Date: 2012-08-22
从卫民 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution still has the following defects. One is that metal materials need to be respectively arranged on both sides of the skeleton cage under compression and tension; high cost

Method used

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  • Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure
  • Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure
  • Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure

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Embodiment 1

[0021] Such as figure 1 , 2 As shown, the present invention includes a skeleton cage 2 in the pile body 1, the skeleton cage 2 on the pressure side of the pile body 1 is coaxially provided with a reinforced plastic rod 3, and the skeleton cage 2 on the tension side is the same The axis is provided with a post-tensioned prestressed steel strand 4. In this embodiment, four post-tensioned prestressed steel strands 4 are arranged coaxially on the skeleton cage 2 on the tension side.

[0022] In this embodiment, the reinforced plastic rod 3 is a carbon fiber rod, the diameter of the reinforced plastic rod 3 is 10mm, and the diameter of the rod is set according to the bearing force of the pile body.

[0023] In this embodiment, the outer surface of the reinforced plastic rod 3 is provided with threads (not shown).

[0024] Such as figure 1 As shown, the upper end of the steel cable 4 is provided with a tensioned fixed connector 5, the upper end of the steel cable 4 and its conne...

Embodiment 2

[0029] The reinforced plastic rods are glass fiber rods. All the other implementations are as in Example 1.

Embodiment 3

[0031] The reinforced plastic rod is an aramid fiber rod. All the other implementations are as in Example 1.

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Abstract

The invention discloses a supporting cantilever pile with a prestress steel bowstring and reinforced plastic rod composite structure, which comprises a framework cage in a pile body, framework reinforcements on a framework cage on one tension side of the pile body include at least one prestress steel bowstring, and other framework reinforcements are reinforced plastic bars or pipes which are made of carbon fiber, glass fiber or aramid fiber. According to the supporting cantilever pile with the prestress steel bowstring and reinforced plastic rod composite structure, different design schemes are utilized for two sides of the framework cage based on the different stress bearing conditions of the two sides of the pile body, accordingly, both advantages of high tensile strength of the prestress steel bowstring and high pressure strength of the prestress reinforced plastic rod are fully exerted, and the overall performance of pile foundation is improved, and the manufacturing cost of the supporting pile and the construction cost are reduced. Simultaneously, as the reinforced plastic bars belong to fragile materials, and anti-fracture capacity is weak, dismounting is convenient.

Description

technical field [0001] The invention relates to the field of construction, in particular to foundation piles. Background technique [0002] The traditional foundation pit support piles are uniformly arranged steel bars along the periphery of the pile, and the force of the pile is characterized by tension on the side close to the soil body, compression on the side close to the side of the foundation pit, and different forces on both sides, and the magnitude of the force is Inconsistency, therefore, generally speaking, steel bars are arranged on the side under tension. The advantage of this kind of structural pile is that it is convenient for construction, but the disadvantage is also obvious, that is, the steel bars cannot fully function, resulting in greater waste. Previously, the inventor proposed a patent application titled "A Partially Prestressed Supported Cantilever Pile". According to the different stress conditions on both sides of the pile body, different design sche...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/58
Inventor 从卫民
Owner 从卫民