CN203625901U - Improved prestressed concrete square pile - Google Patents

Improved prestressed concrete square pile Download PDF

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Publication number
CN203625901U
CN203625901U CN201320803985.2U CN201320803985U CN203625901U CN 203625901 U CN203625901 U CN 203625901U CN 201320803985 U CN201320803985 U CN 201320803985U CN 203625901 U CN203625901 U CN 203625901U
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CN
China
Prior art keywords
concrete
pile
external
layer
square pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320803985.2U
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Chinese (zh)
Inventor
朱建舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG ZHONGJI PILE INDUSTRY Co Ltd
Original Assignee
ZHEJIANG ZHONGJI PILE INDUSTRY Co Ltd
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Filing date
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Priority to CN201320803985.2U priority Critical patent/CN203625901U/en
Application granted granted Critical
Publication of CN203625901U publication Critical patent/CN203625901U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an improved prestressed concrete square pile comprising a concrete square pile body. The concrete square pile body comprises a metal square cylinder; the inner wall of the metal square cylinder is covered with an internal concrete layer; the external wall of the metal square cylinder is covered with an external concrete layer; the interior of the internal concrete layer is provided with a metal fiber woven net; the interior of the external concrete layer is provided with a reinforced steel bar cage; the reinforced steel bar cage is formed by a plurality of reinforced steel bars and a plurality of stirrups; the reinforced steel bars are inserted in the external concrete layer along an axis direction; at least one lap of the stirrup is spirally winded on the periphery of the reinforced steel bars; and a plurality of hollow grooves are formed on the internal surface of the internal concrete layer and the external surface of the external concrete layer. The beneficial effects of the improved prestressed concrete square pile reside in that with arrangement of the hollow grooves oppositely arranged on the external surface of the pile body, a contact area of adjacent pile bodies is increased, so a stressed area of the pile body is increased and tension bearing force and shearing bearing force are improved.

Description

A kind of modified prestressed concrete square pile
Technical field
The utility model relates to concrete pile body field, specifically, specially refers to a kind of modified prestressed concrete square pile.
Background technology
Reinforced concrete pile has a wide range of applications at the realm of building construction, the particularly engineering such as harbour, railway, but in some civilian building projects, due to not high to the requirement for bearing capacity of stake, often adopt other modes to construct.For example slope protection works, adopts the mode of building bank protection retaining wall to protect traditionally, and because the construction period of body of wall is longer, intensity is not high, easily causes body of wall to cave in, and affects protection effect.
In prior art, generally realize protection effect by employing steel pipe, but on the one hand because steel pipe corrosion resistance is not strong, make institute's tensile capacity and cut bearing capacity lower, on the other hand, contact area between different pile bodies is little, make the overall tensile capacity of concrete tubular pile and to be cut bearing capacity not high, easily cause pile body brittle failure.
Utility model content
The technical problem that the utility model actual needs solves is: in prior art, by adopting steel pipe to realize protection effect, make the overall tensile capacity of concrete tubular pile and to be cut bearing capacity not high, easily cause the brittle failure of concrete pile body.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of modified prestressed concrete square pile, comprises concrete square pile body, and described concrete square pile body comprises a metal square tube, and the inwall of described metal square tube is coated with inner layer of concrete, and the outer wall of described metal square tube is coated with outside layer of concrete; The inside of described inner layer of concrete is provided with metallic fiber mesh grid, and described metallic fiber mesh grid adopts wire longitude and latitude to work out; The inside of described outside layer of concrete is provided with reinforcing cage, and described reinforcing cage comprises some reinforcing bars and stirrup, and described reinforcing bar runs through and is arranged in outside layer of concrete along axis direction, and is provided with at least one circle stirrup at the peripheral spiral winding of described reinforcing bar; The inner surface of described inner layer of concrete and the external surface of outside layer of concrete offer the groove of some up/down perforations.
Further, described groove is arc groove or trapezoidal groove, and the angle of the bottom surface of described trapezoidal groove and the side of described trapezoidal groove is between 75 degree to 160 degree.
Further, described some reinforcing bars are positive square and distribute, and the outside that stirrup is welded in reinforcing bar twist forms main body framework.
Compared with prior art, the beneficial effects of the utility model are as follows:
By the groove of and up/down perforation relative at pile body external surface setting position, the contact area of adjacent pile body is increased, increase the lifting surface area of pile body, improve tensile capacity and cut bearing capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation of prestressed concrete square pile described in the utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Number in the figure explanation: metal square tube 100, outside layer of concrete 200, reinforcing cage 210, inner layer of concrete 300, metallic fiber mesh grid 310, groove 400.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
Referring to Fig. 1 and Fig. 2, a kind of modified prestressed concrete square pile described in the utility model, comprise concrete square pile body, described concrete square pile body comprises a metal square tube 100, the inwall of described metal square tube 100 is coated with inner layer of concrete 300, and the outer wall of described metal square tube 100 is coated with outside layer of concrete 200; The inside of described inner layer of concrete 300 is provided with metallic fiber mesh grid 310, and described metallic fiber mesh grid 310 adopts wire longitude and latitude to work out; The inside of described outside layer of concrete 200 is provided with reinforcing cage 210, and described reinforcing cage 210 comprises some reinforcing bars and stirrup, and described reinforcing bar runs through and is arranged in outside layer of concrete 200 along axis direction, and is provided with at least one circle stirrup at the peripheral spiral winding of described reinforcing bar; The external surface of the inner surface of described inner layer of concrete 300 and outside layer of concrete 200 offers the groove 400 of some up/down perforations.The utility model is by adopting the supporting core of metal square tube 100 as whole concrete square pile, and reinforcing cage 210 and metallic fiber mesh grid 310 are set respectively in outside layer of concrete 200 and inner layer of concrete 300, greatly promote the structural strength of whole concrete square pile.
Described groove 400 is arc groove 400 or trapezoidal groove 400, and the angle of the side of the bottom surface of described trapezoidal groove 400 and described trapezoidal groove 400 is between 75 degree to 160 degree.
Described some reinforcing bars are positive square and distribute, and the outside that stirrup is welded in reinforcing bar twist forms main body framework.
Compared with prior art, the beneficial effects of the utility model are as follows:
By the groove of and up/down perforation relative at pile body external surface setting position, the contact area of adjacent pile body is increased, increase the lifting surface area of pile body, improve tensile capacity and cut bearing capacity.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. a modified prestressed concrete square pile, comprises concrete square pile body, and described concrete square pile body comprises a metal square tube, and the inwall of described metal square tube is coated with inner layer of concrete, and the outer wall of described metal square tube is coated with outside layer of concrete; It is characterized in that: the inside of described inner layer of concrete is provided with metallic fiber mesh grid, described metallic fiber mesh grid adopts wire longitude and latitude to work out; The inside of described outside layer of concrete is provided with reinforcing cage, and described reinforcing cage comprises some reinforcing bars and stirrup, and described reinforcing bar runs through and is arranged in outside layer of concrete along axis direction, and is provided with at least one circle stirrup at the peripheral spiral winding of described reinforcing bar; The inner surface of described inner layer of concrete and the external surface of outside layer of concrete offer the groove of some up/down perforations.
2. modified prestressed concrete square pile according to claim 1, is characterized in that: described groove is arc groove or trapezoidal groove, and the angle of the bottom surface of described trapezoidal groove and the side of described trapezoidal groove is between 75 degree to 160 degree.
3. modified prestressed concrete square pile according to claim 1, is characterized in that: described some reinforcing bars are positive square and distribute, and the outside that stirrup is welded in reinforcing bar twist forms main body framework.
CN201320803985.2U 2013-12-09 2013-12-09 Improved prestressed concrete square pile Expired - Fee Related CN203625901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320803985.2U CN203625901U (en) 2013-12-09 2013-12-09 Improved prestressed concrete square pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320803985.2U CN203625901U (en) 2013-12-09 2013-12-09 Improved prestressed concrete square pile

Publications (1)

Publication Number Publication Date
CN203625901U true CN203625901U (en) 2014-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320803985.2U Expired - Fee Related CN203625901U (en) 2013-12-09 2013-12-09 Improved prestressed concrete square pile

Country Status (1)

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CN (1) CN203625901U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487241A (en) * 2018-04-03 2018-09-04 中国矿业大学 A kind of pile for prestressed pipe for chloride erosion environment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487241A (en) * 2018-04-03 2018-09-04 中国矿业大学 A kind of pile for prestressed pipe for chloride erosion environment

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140604

Termination date: 20141209