CN202039354U - Prestressed concrete hollow square pile - Google Patents

Prestressed concrete hollow square pile Download PDF

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Publication number
CN202039354U
CN202039354U CN 201120141602 CN201120141602U CN202039354U CN 202039354 U CN202039354 U CN 202039354U CN 201120141602 CN201120141602 CN 201120141602 CN 201120141602 U CN201120141602 U CN 201120141602U CN 202039354 U CN202039354 U CN 202039354U
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CN
China
Prior art keywords
pile
concrete
reinforcing cage
main muscle
hollow square
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
CN 201120141602
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Chinese (zh)
Inventor
张强
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.)
Shanghai Zhongji Pile Industry Co Ltd
Original Assignee
Shanghai Zhongji Pile Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Zhongji Pile Industry Co Ltd filed Critical Shanghai Zhongji Pile Industry Co Ltd
Priority to CN 201120141602 priority Critical patent/CN202039354U/en
Application granted granted Critical
Publication of CN202039354U publication Critical patent/CN202039354U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A prestressed concrete hollow square pile comprises a pile body with a square cross section, wherein metal end plates are connected to the two ends of the pipe body respectively; the pile body comprises a first steel reinforcement cage and a second steel reinforcement cage which are concentrically arranged, the first steel reinforcement cage is located on the inner side of the second steel reinforcement cage, and the two ends of the first steel reinforcement cage are respectively and fixedly connected with the metal end plates. The prestressed concrete hollow square pile provided by the utility model has the advantages that the structural strength of piling is further enhanced and the bending resistance and shearing resistance of the pile body are improved.

Description

A kind of concrete pre-stress hollow square pile
Technical field
The utility model relates to a kind of basic piling in the building field foundation pile engineering, particularly a kind of concrete pre-stress hollow square pile.
Background technology
Reinforced concrete structure has obtained large-scale use in 20th century in engineering circle side, has also used the steel concrete piling in the foundation pile engineering of building field in a large number.In general, by in concrete, adding put more energy into material and concrete co-operation such as reinforcing bar, bear wherein pulling force by reinforcing bar, concrete is born compressive stress part wherein, the piling that obtains thus can provide bearing capacity of single pile preferably, provides support as building foundation.Because concrete tensile property is very poor, makes the steel concrete piling be easy to generate the crack, influences the application life of piling.
After the prestressed reinforced concrete piling carries out prestretching by the main reinforcement to piling, the pile body concrete is applied compressive stress, thereby improved the tensile property of piling, but because the main reinforcement of piling has passed through pre-pulling process, thereby make main reinforcement fragility increase, when piling was subjected to crooked and shearing force, the main reinforcement of piling was destroyed easily, thereby causes the damage of piling.Therefore, need further to promote the bending resistance shear behavior of prestressed reinforced concrete piling.
The utility model content
The utility model provides a kind of concrete pre-stress hollow square pile, to reduce or to avoid problem noted earlier.
For addressing the above problem, the utility model proposes a kind of concrete pre-stress hollow square pile, comprise that cross section is square pile body, described pile body two ends respectively are connected with a metal end plate, described pile body comprises first reinforcing cage and second reinforcing cage of arranged concentric, described first reinforcing cage is positioned at the described second reinforcing cage inboard, fixedlys connected with described metal end plate respectively in the described first reinforcing cage two ends.
Preferably, described first reinforcing cage comprises a plurality of along the described pile body axially extended first main muscle and first stirrup, and described first stirrup shape in the shape of a spiral is welded on the described first main muscle; Described second reinforcing cage comprises a plurality of along the described pile body axially extended second main muscle and second stirrup, and described second stirrup shape in the shape of a spiral is welded on the described second main muscle, and the length of the described second main muscle is shorter than the described first main muscle.
Preferably, the described first main muscle is first square layout, and the described second main muscle is second square layout, and described first party morpheme is in the described second main square inside.
Preferably, be welded with connecting reinforcement between described first reinforcing cage and described second reinforcing cage.
Preferably, described connecting reinforcement is arranged between the described first main muscle and the described second main muscle.
Preferably, along described pile body y direction, has the central through hole that runs through whole described pile body at described pile body center.
Concrete pre-stress hollow square pile provided by the utility model by first reinforcing cage and second reinforcing cage that arranged concentric is set, has further strengthened the structural strength of piling in its pile body, promoted the bending resistance shear behavior of pile body.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is the structural representation according to the concrete pre-stress hollow square pile of a specific embodiment of the present utility model;
Fig. 2 is the vertical view of concrete pre-stress hollow square pile shown in Figure 1;
Fig. 3 is the schematic cross-section of concrete pre-stress hollow square pile shown in Figure 1.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.
Describe structure and principle thereof with reference to the accompanying drawings in detail according to a kind of concrete pre-stress hollow square pile of the present utility model.
Fig. 1 is the structural representation according to the concrete pre-stress hollow square pile of a specific embodiment of the present utility model; Fig. 2 is the vertical view of concrete pre-stress hollow square pile shown in Figure 1; Fig. 3 is the schematic cross-section of concrete pre-stress hollow square pile shown in Figure 1.Specifically, the utility model proposes a kind of concrete pre-stress hollow square pile, comprise that cross section is square pile body, described pile body two ends respectively are connected with a metal end plate 3, described pile body comprises first reinforcing cage and second reinforcing cage of arranged concentric, described first reinforcing cage is positioned at the described second reinforcing cage inboard, fixedlys connected with described metal end plate 3 respectively in the described first reinforcing cage two ends.
With the described metal end plate 3 that described first reinforcing cage is fixedlyed connected, make described concrete pre-stress hollow square pile can possess better impact resistance and much smaller pile crown breakage rate; Obtain bigger welding girth simultaneously,, make pile quality more excellent so the effective weld strength between every joint stake when fully having guaranteed pile extension has reduced described concrete pre-stress hollow square pile greatly and joint sealing-off or offset phenomena occur in construction.
Described first reinforcing cage is positioned at the described second reinforcing cage inboard, also fixedly connected simultaneously with described metal end plate 3, also make the pile body of this concrete pre-stress hollow square pile can reduce or offset the tensile stress of the concrete 2 of the caused described pile body of load, thereby with the tension Stress Control of described pile body more among a small circle, can postpone thus concrete 2 the crack appearance and carry out, improve the cracking resistance and the rigidity of member.
In another specific embodiment, described first reinforcing cage comprises a plurality of along the described pile body axially extended first main muscle 11 and first stirrup 12, and described first stirrup 12 shape in the shape of a spiral is welded on the described first main muscle 11; Described second reinforcing cage comprises a plurality of along the described pile body axially extended second main muscle 21 and second stirrup 22, and described second stirrup 22 shape in the shape of a spiral is welded on the described second main muscle 21, and the length of the described second main muscle 21 is than described first main muscle 11 weak points.
Described first stirrup 12 shape in the shape of a spiral is welded on the described first main muscle 11, being convenient to mechanization like this welds automatically, spiral helicine first stirrup 12 can make described first reinforcing cage possess good anti-flexible, torsional property simultaneously, same, described second stirrup 22 shape in the shape of a spiral is welded on and also can makes described second reinforcing cage possess good anti-flexible, torsional property on the described second main muscle 21; Therefore described first reinforcing cage and described second reinforcing cage also just can reduce the caused described pile body of load concrete 2 be subjected to flexure stress, thereby the flexure stress that is subjected to of pile body is controlled at more among a small circle, can postpone thus concrete 2 the crack appearance and carry out, improve the cracking resistance and the rigidity of member.
In another specific embodiment, the described first main muscle is first square layout, and the described second main muscle is second square layout, and described first party morpheme is in the described second main square inside.
In another specific embodiment, be welded with connecting reinforcement 13 between described first reinforcing cage and described second reinforcing cage, can further strengthen the structural strength of pile body like this.
In a preferred embodiment, described connecting reinforcement 13 is arranged between the described first main muscle 11 and the described second main muscle 21.
In another specific embodiment, along described pile body y direction, has the central through hole that runs through whole described pile body at described pile body center, like this in the structural strength that ensures described pile body, can effectively reduce the thickness of concrete 2, alleviate the own wt of described concrete pre-stress hollow square pile.
Concrete pre-stress hollow square pile provided by the utility model by first reinforcing cage and second reinforcing cage that arranged concentric is set, has further strengthened the structural strength of piling in its pile body, promoted the bending resistance shear behavior of pile body.
Though it will be appreciated by those skilled in the art that the utility model is that mode according to a plurality of embodiment is described, and is not that each embodiment only comprises an independently technical scheme.Narration like this only is for the sake of clarity in the manual; those skilled in the art should make manual as a wholely to be understood, and regard technical scheme related among each embodiment as the mode that can be combined into different embodiment mutually understand protection domain of the present utility model.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations, the modification of being done under the prerequisite that does not break away from design of the present utility model and principle and combining all should belong to the scope of the utility model protection.

Claims (6)

1. concrete pre-stress hollow square pile, comprise that cross section is square pile body, described pile body two ends respectively are connected with a metal end plate, it is characterized in that, described pile body comprises first reinforcing cage and second reinforcing cage of arranged concentric, described first reinforcing cage is positioned at the described second reinforcing cage inboard, fixedlys connected with described metal end plate respectively in the described first reinforcing cage two ends.
2. concrete pre-stress hollow square pile according to claim 1 is characterized in that, described first reinforcing cage comprises a plurality of along the described pile body axially extended first main muscle and first stirrup, and described first stirrup shape in the shape of a spiral is welded on the described first main muscle; Described second reinforcing cage comprises a plurality of along the described pile body axially extended second main muscle and second stirrup, and described second stirrup shape in the shape of a spiral is welded on the described second main muscle, and the length of the described second main muscle is shorter than the described first main muscle.
3. concrete pre-stress hollow square pile according to claim 2 is characterized in that, the described first main muscle is first square layout, and the described second main muscle is second square layout, and described first party morpheme is in the described second main square inside.
4. concrete pre-stress hollow square pile according to claim 3 is characterized in that, is welded with connecting reinforcement between described first reinforcing cage and described second reinforcing cage.
5. concrete pre-stress hollow square pile according to claim 4 is characterized in that, described connecting reinforcement is arranged between the described first main muscle and the described second main muscle.
6. concrete pre-stress hollow square pile according to claim 5 is characterized in that, along described pile body y direction, has the central through hole that runs through whole described pile body at described pile body center.
CN 201120141602 2011-05-06 2011-05-06 Prestressed concrete hollow square pile Expired - Fee Related CN202039354U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120141602 CN202039354U (en) 2011-05-06 2011-05-06 Prestressed concrete hollow square pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120141602 CN202039354U (en) 2011-05-06 2011-05-06 Prestressed concrete hollow square pile

Publications (1)

Publication Number Publication Date
CN202039354U true CN202039354U (en) 2011-11-16

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Application Number Title Priority Date Filing Date
CN 201120141602 Expired - Fee Related CN202039354U (en) 2011-05-06 2011-05-06 Prestressed concrete hollow square pile

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CN (1) CN202039354U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979086A (en) * 2012-12-17 2013-03-20 青岛兴河建材有限公司 Prestressed concrete square pile and manufacturing method thereof
CN102995628A (en) * 2012-12-17 2013-03-27 青岛兴河建材有限公司 Precast reinforced concrete square pile and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979086A (en) * 2012-12-17 2013-03-20 青岛兴河建材有限公司 Prestressed concrete square pile and manufacturing method thereof
CN102995628A (en) * 2012-12-17 2013-03-27 青岛兴河建材有限公司 Precast reinforced concrete square pile and manufacturing method thereof
CN102979086B (en) * 2012-12-17 2013-09-04 青岛兴河建材有限公司 Prestressed concrete square pile and manufacturing method thereof

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

Granted publication date: 20111116

Termination date: 20180506

CF01 Termination of patent right due to non-payment of annual fee