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A reinforced tensile-shear phc pipe pile foundation structure and its construction method

A PHC pipe pile and foundation structure technology, applied in foundation structure engineering, construction, etc., can solve problems such as low tensile and shear bearing capacity, and dangerous foundation conditions of wind power towers

Active Publication Date: 2018-11-20
QINGDAO HUA STRONG ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing PHC pipe piles have low tensile and shear bearing capacity and show brittleness. They are better used for general pressure pile foundations, but they are very dangerous for foundations subject to tension and shear fatigue dynamics such as wind power towers.

Method used

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  • A reinforced tensile-shear phc pipe pile foundation structure and its construction method
  • A reinforced tensile-shear phc pipe pile foundation structure and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to figure 1 , the specific composition of the strengthened tensile-shear PHC pipe pile foundation structure of this embodiment is from top to bottom, including cap 4, prestressed anchor bolt 1, prestressed steel strand 20, pile top shear strengthening section 5, PHC The specific implementation steps of pile top pipe joint 6 and PHC pile bottom pipe joint 15 are as follows:

[0029] (1) When the PHC pipe pile is manufactured in the factory, the upper part of the PHC pile top pipe joint 6 is transformed into a pile top shear strengthening section 5 according to the design requirements; a stiffening plate 17 is pre-embedded at a distance of 500 mm from the top of the PHC pile bottom pipe joint 15 , the anchor plate 16 with slotted hole, and establish spring hinge 22 and spring turnover plate 18, refer to figure 2 ;

[0030] (2) Drive in the PHC pile bottom pipe joint 15, and before connecting with the PHC pile top pipe joint 6, penetrate the prestressed steel stra...

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PUM

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Abstract

The invention discloses a reinforced tensile-shear PHC pipe pile foundation structure and a construction method thereof. The PHC pipe pile foundation structure comprises a bearing platform, a prestressed bolt, a prestressed steel strand and a PHC pipe pile; the PHC pipe pile is connected through the prestressed steel strand; and the contact area between the top of the pile and the foundation bearing platform is increased. The PHC pipe pile foundation structure has such advantages as convenience to construct, reasonable and feasible structural stress and material saving, and can be applied to such structural foundations suffered from the tensile and shear fatigue labor effect as wind power generation towers.

Description

technical field [0001] The invention belongs to the field of pile foundation structure design, and in particular relates to a PHC pipe pile foundation structure and a construction method thereof. Background technique [0002] The prestressed high-intensity concrete pipe pile, referred to as PHC pipe pile, has the advantages of lower price, mature technology, fast construction speed, high bearing capacity and environmental protection compared with bored pile, which meets the requirements of prefabricated buildings. design concept. However, the existing PHC pipe piles have low tensile and shear bearing capacity and show brittleness. They are better used for general pressure pile foundations, but they are very dangerous for foundations subject to tension and shear fatigue dynamics such as wind power towers. Contents of the invention [0003] The object of the present invention is to provide a foundation structure and construction method of a strengthened tensile-shear PHC pi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/12E02D27/14E02D27/42
CPCE02D27/12E02D27/14E02D27/425
Inventor 王同华吕兆华
Owner QINGDAO HUA STRONG ENERGY TECH CO LTD