CN201835278U - Prestressed high-strength concrete square pile - Google Patents

Prestressed high-strength concrete square pile Download PDF

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Publication number
CN201835278U
CN201835278U CN 201020513440 CN201020513440U CN201835278U CN 201835278 U CN201835278 U CN 201835278U CN 201020513440 CN201020513440 CN 201020513440 CN 201020513440 U CN201020513440 U CN 201020513440U CN 201835278 U CN201835278 U CN 201835278U
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Prior art keywords
pile
plate
hole
stake
metal
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CN 201020513440
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Chinese (zh)
Inventor
朱建舟
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Shanghai Zhongji Pile Industry Co Ltd
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Abstract

The utility model provides a prestressed high-strength concrete square pile comprising a steel reinforcement cage and concrete that form a square pile body; the center of the pile body is provided with a round central hole; the prestressed high-strength concrete square pile is characterized in that the steel reinforcement cage consists of a framework main rib and stirrups welded at the outer ring of the framework main rib, and the stirrups are spirally and continuously welded on the framework main rib; two ends of the pile body are respectively provided with a metal end plate that is connected with the framework main rib, four edges of the metal end plate are provided with welding bevels, and hoops are arranged at the connection position of the end plate and the pile body; and the corner of the pile body is in a 90-degree circular arc with radius being 5-30mm. The square pile is square, and four corners are in a stress relieving circular arc, therefore, the four corners of the pile body in building construction can be rarely damaged, and the pile forming rate and the utilization ratio of the finished pile are high.

Description

The stake of a kind of prestressed high strength concrete side
Technical field
The utility model relates to technical field of civil engineering, further relates to the moulding utensil of a kind of foundation pile shape and foundation pile in the building field.Specifically, be a kind of prestress high intensity concrete square pile and moulding form thereof.
Background technology
There are various stakes in the prior art, as pile tube, all kinds of side stake, castinplace pile, drilled pile etc.These pilings mainly divide non-prestressed member and prestressed member two big classes.The prestressed member piling comprises, pile tube, centrifugal prestress square pile etc.Their shortcoming is, often fragility is bigger, and is shorter from the time to rupture that ftractures, and pile body ductility is relatively poor, causes the moment building collapsing when earthquake takes place, and makes that personnel do not have the adequate time escape in the building.Non-prestressed member stake comprises, traditional side's stake, tube-sinking cast-in-situ pile etc.It is relatively low to show as bearing capacity of single pile, and bending resistance (drawing) shear behavior is poor, long construction period, and pile quality does not meet designing requirement; Piling well damage in transportation and the use causes the pile concrete durability bad.The preformed pile smooth in appearance, the frictional force of piling and soil layer is little.Also there be a kind of end that the prestressed centrifugally concrete square pile of end plate is arranged, from heavy and light, material-saving, lifting, convenient transportation, bearing capacity of pile is big.But its main muscle layout is reasonable inadequately, and poor as main muscle, pile body anti-bending strength with prestressed reinforcement or plain bars.End plate four limits do not have the welding groove, have influenced the pile connectivity robustness.The pile body cross section is a quadrangle, and pile body very easily damages for four jiaos in the building operations, causes whole stake to be scrapped, and not only causes waste, but also can influence construction speed.
The utility model content
One of technical problem to be solved in the utility model is, overcomes problems of the prior art, and the stake of a kind of prestressed high strength concrete side is provided.
In order to address the above problem the technical solution of the utility model is such:
The stake of a kind of prestressed high strength concrete side comprises reinforcing cage, the concrete of formation side stake pile body, and the pile body center has a round center hole; It is characterized in that reinforcing cage is made of N skeleton master muscle and the stirrup that is welded on skeleton master muscle outer ring, wherein N is 4 integral multiple, and the spiral continuous welding of stirrup is on skeleton master muscle; The two ends of pile body are provided with and metal end plate, and metal end plate is connected with skeleton master muscle, and metal end plate four limits are provided with bevel for welding, and the junction of end plate and pile body is provided with cuff; The corner of pile body is circular arc, and arc chord angle is 90 °, arc radius 5-30mm.
Described skeleton master muscle is steel strand, evenly is provided with through wires hole and tension force hole on the metal end plate, and each tension force hole bilateral symmetry is provided with a through wires hole, and through wires hole is a counter sink.
On the pile body cross-wise direction, described skeleton master muscle squarely is arranged, and through wires hole on the described metal end plate and the tension force hole squarely corresponding with skeleton master muscle arranged.
On the pile body cross-wise direction, circular the arranging of described skeleton master muscle, circular the arranging that through wires hole on the described metal end plate and tension force hole are corresponding with skeleton master muscle.
Described skeleton master muscle is a rod iron, evenly is provided with through wires hole and tension force hole on the metal end plate, through wires hole of connection that each tension force hole is adjacent, and through wires hole is a counter sink, the rod iron end is provided with pier nose.
On the pile body cross-wise direction, described skeleton master muscle squarely is arranged, and through wires hole on the described metal end plate and the tension force hole squarely corresponding with skeleton master muscle arranged.
On the pile body cross-wise direction, circular the arranging of described skeleton master muscle, circular the arranging that through wires hole on the described metal end plate and tension force hole are corresponding with skeleton master muscle.
Beneficial effect:
The profile of side's stake described in the utility model is square, and its four limits corner is stress and eliminates circular arc, so the utility model pile body in building operations phenomenon seldom occurs damaging for four jiaos, pile rate and pile utilization rate extra-high-speed.Pile is not fragile in the building operations hammering, has improved product pile rate.
The two ends of side's stake described in the utility model are provided with the metal end plate that is connected with reinforcing cage, and bevel for welding is established on two square endplates, four limits, and central authorities are circular holes, are provided with through wires hole and tension force hole between circular hole and four limits symmetrically; The stirrup of shape in the shape of a spiral of reinforcing cage is welded on the main muscle continuously, so on structure, the utility model master muscle is rationally distributed, reinforcing cage in the shape of a spiral the shape stirrup to be welded firmly, make in the production pile body ductility good, become that pile capacity is big, the bending resistance shear behavior is good, shock resistance is strong.
The stake heart of side's stake described in the utility model is provided with identical columnar mesopore with end plate central circular hole diameter, thus side of the present utility model stake material-saving, from heavy and light.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation that steel strand are arranged into square side's stake for the utility model embodiment 1 main muscle;
Fig. 2 is the metal end plate structural representation of the utility model embodiment 1;
Fig. 3 is arrange conglobate side's structural representations of steel strand for the utility model embodiment 2 main muscle
Fig. 4 is the metal end plate structural representation of the utility model embodiment 2;
Fig. 5 is the structural representation that rod iron is arranged into square side's stake for the utility model embodiment 3 main muscle;
Fig. 6 is the metal end plate structural representation of the utility model embodiment 3;
Fig. 7 is arrange conglobate side's a structural representation of rod iron for the utility model embodiment 4 main muscle
Fig. 8 is the metal end plate structural representation of the utility model embodiment 4;
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Embodiment 1
Referring to Fig. 1 and Fig. 2
A kind of prestress high intensity concrete square pile of present embodiment, pile body cross section are square, and pile body comprises reinforcing cage, concrete.
The two ends of side's stake are provided with the metal end plate 1 that is connected with reinforcing cage, bevel for welding 2 is established on two square endplates, four limits, central authorities are circular holes, be provided with the through wires hole 5 of tension force hole 4 and both sides, tension force hole between circular hole and four limits symmetrically, through wires hole of She Zhiing and tension force hole are the hole symmetries on two relative edges symmetrically, and each 4 both sides, tension force hole respectively is provided with a through wires hole 5 equidistantly.The stirrup 9 of reinforcing cage shape in the shape of a spiral is welded on the main muscle continuously; The profile of concrete square pile and end plate 1 is square, and its four limits corner is stress and eliminates circular arc 3, and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.Through wires hole is determined according to the specification of reinforcing bar; The tension force hole is determined according to the diameter of stretching screw.
In order to protect pile body 8 round angles not ftracture, do not damage, described side's stake and end plate four limit corners are stress and eliminate circular arc, and wherein arc chord angle is 90 °, and arc radius is 20mm, foursquare arc radius equivalence.
Certain four arc radius also can be the non-equivalence radius.
In order to protect pile body better, avoid pile body when the construction hammering, to damage, described two square endplates 1 are provided with cuff 6 with concrete pile body 8 connecting portions.
Reinforcing cage between the described two end plates is skeleton master muscle 7 with steel strand, and skeleton master muscle 7 is eight.Main muscle is parallel with side's stake outline line, and steel strand are connected the employing intermediate plate and are clamped and connected with end plate.
The tension force hole 4 that is provided with symmetrically between described end plate 1 central circular hole and four limits and the through wires hole 5 of both sides, the tension force hole layout that is square generally.Do not expose through wires hole after making main muscle connect end plate, hit main muscle when avoiding in building operations hammering and appear and make main muscle advance to split, through wires hole designs and produces into counter sink.
The stake of described pile body is long generally speaking is 9-15m, and the stake length of side is 250-500mm, and carry of the stake every 50mm of the length of side.
Embodiment 2
Referring to Fig. 3 and Fig. 4
The through wires hole 5 of tension force hole 4 and both sides, tension force hole rounded layout around the central circular hole on end plate 1.Steel strand layout between the corresponding two end plates 1 changes thereupon.
All the other are with embodiment 1
Embodiment 3
Referring to Fig. 5 and Fig. 6
Present embodiment, a kind of prestress high intensity concrete square pile pile body cross section is square, pile body comprises reinforcing cage, concrete.
The two ends of side's stake are provided with the metal end plate 1 ' that is connected with reinforcing cage, bevel for welding 2 ' is established on two square endplates, four limits, central authorities are circular holes, be provided with through wires hole 5 ' and tension force hole 4 ' between circular hole and four limits symmetrically, through wires hole of She Zhiing and tension force hole are the hole symmetries on two relative edges symmetrically, and each tension force hole 4 ' links to each other with through wires hole 5 ' separately.
The stirrup 9 ' of reinforcing cage shape in the shape of a spiral is welded on the main muscle 7 ' continuously; The profile of concrete square pile and end plate 1 ' is square, and its four limits corner is stress and eliminates circular arc 3 ', and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.
In order to protect pile body 8 ' round angle not ftracture, do not damage, described side's stake and end plate four limit corners are stress and eliminate circular arc, and its arc chord angle is 90 °, and arc radius is 30mm, foursquare arc radius equivalence.Certain four arc radius also can be the non-equivalence radius.In order to protect pile body better, avoid pile body 8 ' when the construction hammering, to damage, described two square endplates and concrete pile body connecting portion are provided with cuff 6 '.
Reinforcing cage between the present embodiment two end plates is a skeleton master muscle 7 ' with the PCB rod iron, and skeleton master muscle 7 ' is eight, and main muscle is parallel with side's stake outline line, and prestressed steel bar and end plate junction have heading.
Through wires hole 5 ' that is provided with symmetrically between end plate 1 ' central circular hole and four limits and tension force hole 4 ' are the hole symmetries on two relative edges, and each tension force hole links to each other with through wires hole separately.
Tension force hole 4 ' that is provided with symmetrically between described end plate central circular hole and four limits and the through wires hole 5 ' layout that is square generally.Do not expose through wires hole after making main muscle connect end plate, hit main muscle when avoiding in building operations hammering and appear and make main muscle advance to split, through wires hole designs and produces into counter sink.
The layout of main muscle is relevant with the inside and outside protective layer thickness of concrete, and the cloth muscle is relevant with the correlated performance of the shearing resistance of pile body, need be according to actual conditions, and actual the adjustment.
7.1,9.0,10.7,12.6mm in the present embodiment, at present the rod iron that uses is three phosphorus manganese silicon materials, claims the PC rod iron again, and specification is generally:.
Embodiment 4
Referring to Fig. 7 and Fig. 8
Tension force hole 4 ' and through wires hole 5 ' be rounded layout around end plate 1 ' is gone up central circular hole.PCB rod iron layout between the corresponding two end plates 1 changes thereupon.
Side stake and end plate four limit corners are stress elimination circular arc, and wherein a pair of arc chord angle is 90 °, and arc radius is 28mm, another is that 90 ° of arc radius are 8mm to arc chord angle.The foursquare arc radius is a non-equivalence.Certainly the foursquare arc radius also can be equivalent radius.
All the other are with embodiment 3.
More than show and described basic principle of the present utility model, 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 describes in the foregoing description and the manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (7)

1. prestressed high strength concrete side's stake comprises reinforcing cage, the concrete of formation side stake pile body, and the pile body center has a round center hole; It is characterized in that reinforcing cage is made of N skeleton master muscle and the stirrup that is welded on skeleton master muscle outer ring, wherein N is 4 integral multiple, and the spiral continuous welding of stirrup is on skeleton master muscle; The two ends of pile body are provided with and metal end plate, and metal end plate is connected with skeleton master muscle, and metal end plate four limits are provided with bevel for welding, and the junction of end plate and pile body is provided with cuff; The corner of pile body is circular arc, and arc chord angle is 90 °, arc radius 5-30mm.
2. a kind of prestressed high strength concrete side stake according to claim 1, it is characterized in that described skeleton master muscle is steel strand, evenly is provided with through wires hole and tension force hole on the metal end plate, each tension force hole bilateral symmetry is provided with a through wires hole, and through wires hole is a counter sink.
3. a kind of prestressed high strength concrete side stake according to claim 2 is characterized in that, on the pile body cross-wise direction, described skeleton master muscle squarely is arranged, and through wires hole on the described metal end plate and the tension force hole squarely corresponding with skeleton master muscle arranged.
4. a kind of prestressed high strength concrete side stake according to claim 2 is characterized in that, on the pile body cross-wise direction, and circular the arranging of described skeleton master muscle, circular the arranging that through wires hole on the described metal end plate and tension force hole are corresponding with skeleton master muscle.
5. a kind of prestressed high strength concrete side stake according to claim 1 is characterized in that, described skeleton master muscle is a rod iron, evenly be provided with through wires hole and tension force hole on the metal end plate, through wires hole of connection that each tension force hole is adjacent, through wires hole is a counter sink, the rod iron end is provided with pier nose.
6. a kind of prestressed high strength concrete side stake according to claim 5 is characterized in that, on the pile body cross-wise direction, described skeleton master muscle squarely is arranged, and through wires hole on the described metal end plate and the tension force hole squarely corresponding with skeleton master muscle arranged.
7. a kind of prestressed high strength concrete side stake according to claim 5 is characterized in that, on the pile body cross-wise direction, and circular the arranging of described skeleton master muscle, circular the arranging that through wires hole on the described metal end plate and tension force hole are corresponding with skeleton master muscle.
CN 201020513440 2010-08-31 2010-08-31 Prestressed high-strength concrete square pile Ceased CN201835278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020513440 CN201835278U (en) 2010-08-31 2010-08-31 Prestressed high-strength concrete square pile

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Application Number Priority Date Filing Date Title
CN 201020513440 CN201835278U (en) 2010-08-31 2010-08-31 Prestressed high-strength concrete square pile

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CN201835278U true CN201835278U (en) 2011-05-18

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CN 201020513440 Ceased CN201835278U (en) 2010-08-31 2010-08-31 Prestressed high-strength concrete square pile

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677654A (en) * 2012-05-14 2012-09-19 天津建城基业集团有限公司 Rectangular prestressed high-strength concrete pile and forming mold thereof
CN102776879A (en) * 2012-08-01 2012-11-14 天津建城基业集团有限公司 Concrete centrifugal square pile and forming mold thereof
CN103061336A (en) * 2013-02-26 2013-04-24 强力投资控股集团股份有限公司 Sectioned type fully-pre-stressed concrete solid square pile
CN110512802A (en) * 2019-08-13 2019-11-29 东南大学 The compound tubular pole of PHC and preparation method thereof using FRP as hybrid reinforcement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677654A (en) * 2012-05-14 2012-09-19 天津建城基业集团有限公司 Rectangular prestressed high-strength concrete pile and forming mold thereof
CN102776879A (en) * 2012-08-01 2012-11-14 天津建城基业集团有限公司 Concrete centrifugal square pile and forming mold thereof
CN103061336A (en) * 2013-02-26 2013-04-24 强力投资控股集团股份有限公司 Sectioned type fully-pre-stressed concrete solid square pile
CN110512802A (en) * 2019-08-13 2019-11-29 东南大学 The compound tubular pole of PHC and preparation method thereof using FRP as hybrid reinforcement

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20131203

Address after: 201999, room 57, No. three, 104 village, Baosteel, Shanghai, Baoshan District

Patentee after: Bao Lei

Address before: 200434, 4, 2 building, 437 Guang Yue Road, Shanghai, Hongkou District

Patentee before: Shanghai Zhongji Pile Industry Co., Ltd.

C35 Partial or whole invalidation of patent or utility model
IW01 Full invalidation of patent right

Decision date of declaring invalidation: 20140408

Decision number of declaring invalidation: 22165

Granted publication date: 20110518