CN201502181U - Pre-tensioning prestressed concrete pile and tension anchoring part thereof - Google Patents
Pre-tensioning prestressed concrete pile and tension anchoring part thereof Download PDFInfo
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- CN201502181U CN201502181U CN2009200474515U CN200920047451U CN201502181U CN 201502181 U CN201502181 U CN 201502181U CN 2009200474515 U CN2009200474515 U CN 2009200474515U CN 200920047451 U CN200920047451 U CN 200920047451U CN 201502181 U CN201502181 U CN 201502181U
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Abstract
The utility model discloses a pre-tensioning prestressed concrete pile and a tension anchoring part thereof. The tension anchoring part comprises a body (8). The utility model is characterized in that a screw hole (2), a rebar sinking hole (1) and a transitional hole (9), wherein the screw (2) and the rebar sinking hole (1) which run through with each other are arranged in the body (8), the transitional hole (9) connects the screw hole (2) with the rebar sinking hole (1), the aperture of the rebar sinking hole (1) is matched with the diameter of a prestressed main rebar, the aperture of the screw hole (2) is larger than the aperture of the rebar sinking hole (1), and the rebar sinking hole (1) is a cylindrical hole or a polygonal cylindrical hole. The utility model has the advantages that the structure is simple, the manufacturing is convenient, and the manufacturing cost and the raw material cost are greatly reduced.
Description
Technical field
The utility model relates to a kind of precast concrete pile, especially a kind of cost-saved concrete pile of end plate that do not use, specifically a kind of pretensioning prestressed concrete pile and stretch-draw anchor spare thereof.
Background technology
As everyone knows, pretensioning prestressed concrete pile is the pile foundation material of present use amount maximum, and it comprises Pretensioned spun concrete piles and pretensioning prestressed concrete hollow square pile.At present, when producing, change the preparation method of cast in situs in the past, adopted the guaranteed factory floor streamline of quality production technology more.
Concrete pile is the very big slender member of a kind of draw ratio, is easy to generate circumferential crack in production, carrying and work progress, and for remedying this defective, also in order to reach the purpose of saving steel, the normal prestressing stretching technique that adopts is produced in batch production simultaneously.
In order to make whole all tendon integral body of pile, average stretch-draw, factory is normal at present to use end plate to realize this purpose.Being fixed on the end plate behind the reinforcing bar heading, end plate is tightened by bolt and is fixed on stretch-draw plate or the anchor plate, carries out integral tension again.This method has solved the problem of integral tension well, and simultaneously end plate is also attached to the stake end portion, the connectivity problem of two stakes when having solved pile foundation construction well again.But the defective of this method also is significantly, mainly contains: 1, be not welded to connect by end plate and when only saving with one, accompanying end plate has just caused the waste of material when pile foundation.2, pile driving construction follower head plate in depth down, is subjected to influence on groundwater, thus the perishable quality that influences pile foundation of end plate.3, production assembly process labor strength is big, and production efficiency is low, and security incident etc. easily takes place.4, because end plate outside area is big, thin thickness, outside planeness is difficult to meet design requirement.
Summary of the invention
The purpose of this utility model is because of the waste raw material that use end plate to exist, perishable and labor strength is big at existing pretensioning prestressed concrete pile, the problem that production efficiency is low, design and a kind ofly can guarantee main muscle integral tension, save material again, reducing the stake termination tilts, prevent corrosion of steel, improve the quality of stake, reduced the pretensioning prestressed concrete pile and the stretch-draw anchor spare thereof of labor strength.
One of the technical solution of the utility model is:
A kind of pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body 8, it is characterized in that being provided with in the described body 8 transitional pore 9 in the screw 2 of mutual perforation, heavy muscle hole 1 and connection screw 2 and heavy muscle hole 1, the aperture in described heavy muscle hole 1 and the diameter of prestressing force master muscle match, the aperture of described screw 2 is greater than the aperture in heavy muscle hole 1, and described heavy muscle hole 1 is cylindrical hole or polygon prism hole.
Two of the technical solution of the utility model is:
A kind of pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body 8, it is characterized in that being provided with in the described body 8 screw 2 and the heavy muscle hole 1 of mutual perforation, the aperture of described screw 2 is greater than the aperture in heavy muscle hole 1, the aperture in described heavy muscle hole 1 and the diameter of prestressing force master muscle match, and described heavy muscle hole 1 is cylindrical hole or polygon prism hole.
Three of the technical solution of the utility model is:
A kind of pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body 8, it is characterized in that being provided with in the described body 8 screw 2 and the heavy muscle hole 1 of mutual perforation, described heavy muscle hole 1 is a bellmouth, and the big end of bellmouth is towards screw 2, the diameter of the end diameter of described bellmouth and prestressing force master muscle matches, and described heavy muscle hole 1 is conical bore or polygon prism taper hole.
The column anti-rotation structure that the end face profile of the body 8 described in the technique scheme one to three can be polygon (as triangle, quadrangle, pentagon, hexagon, heptagon, octagon, or the like) column anti-rotation structure or be made up of one section circular arc and at least one straight flange at least.
The profile of the body 8 described in the technique scheme one to three also can be step-like structure, the column anti-rotation structure that has at least the end of a step body to be polygon (as triangle, quadrangle, pentagon, hexagon, heptagon, octagon, or the like) column anti-rotation structure or to form by one section circular arc and at least one straight flange at least.
Four of the technical solution of the utility model is:
A kind of pretensioning prestressed concrete pile, comprise by main muscle 10 and spiral bar 11, main muscle 10 spiral bars 11 are compiled into the reinforcing cage body as the concrete pile stressed member, described reinforcing cage body is positioned in the concrete pile body, the two ends that it is characterized in that described main muscle 10 have at least an end to be connected with to be embedded in the concrete of the corresponding end of concrete pile as the described stretch-draw anchor spare 3 of claim 1,2 or 3.
The beneficial effects of the utility model:
The utility model can make stretch-draw anchor technology become and operate easily, economical with materials also, effectively prevented the sloped-end of stake, because nut (being stretch-draw anchor spare 3) is stayed in the concrete behind forming pile, can not contact with underground water, reduce the corrosion of steel, improved the quality of pile foundation effectively.
The utility model is not only applicable to the pretensioning prestressed concrete pipe pile, but also is applicable to the stake of pretensioning pre-stressed concrete hollow square.
All the main muscle of concrete pile that utilize the utility model manufacturing are when guaranteeing integral tension, also saved material, reduced the phenomenon that the stake termination tilts, prevented the corrosion of steel, improve the quality of stake, reduced labor strength, improved workman's efficiency, also improved workman's labor safety coefficient, the cuff of band impression has also reduced the concrete damaged probability in stake termination.
Description of drawings
Fig. 1 is one of structural representation of stretch-draw anchor spare of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 be stretch-draw anchor spare of the present utility model structural representation two.
Fig. 4 be stretch-draw anchor spare of the present utility model structural representation three.
Fig. 5 is the structural representation of concrete pile stretch-draw anchor state of the present utility model.
Fig. 6 is the structural representation of crashproof impression cuff of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment one.
As shown in Figure 1, 2.
A kind of pretensioning prestressed concrete pile stretch-draw anchor spare, comprise stainless steel body 8, be provided with the transitional pore 9 in the screw 2 of mutual perforation, heavy muscle hole 1 and connection screw 2 and heavy muscle hole 1 in the described body 8, the aperture in described heavy muscle hole 1 and the diameter of prestressing force master muscle match, the aperture of described screw 2 is greater than the aperture in heavy muscle hole 1, and described heavy muscle hole 1 is cylindrical hole or polygon prism hole.Ineffective during concrete enforcement in order to prevent body 8 stressed rotation in concrete, therefore the end face profile of body 8 can be designed to polygon (as triangle, quadrangle, pentagon, hexagon, heptagon, octagon, nonagon, or the like) the column anti-rotation structure, also can be designed at least the column anti-rotation structure formed by one section circular arc and at least one straight flange, can be designed to single straight flange that a cylinder cuts on one side and add arc structure, also can be designed to the two symmetrical or adjacent straight flanges or the structure of two arc sections or an arc section, also can be designed to the structure that many arc sections add many straight flanges, straight flange can spaced apartly also can be connected distribution with circular arc.In addition, the profile of described body 8 also can be designed to step-like structure, but the end face that has a step body at least is polygon (as triangle, quadrangle, pentagon, hexagon, heptagon, octagon, nonagon ... or the like) column anti-rotation structure or the column anti-rotation structure formed by one section circular arc and at least one straight flange at least.
Embodiment two.
As shown in Figure 3.
Present embodiment and the difference of embodiment one are that screw 2 directly is connected with the heavy muscle hole 1 of the column that installs main reinforcement, thereby the heading of step surface bottom screw and main reinforcement offsets prevent that main reinforcement from coming off from body 8.
Embodiment three.
As shown in Figure 4.
The difference of present embodiment and embodiment one is that screw 2 directly connects with the heavy muscle hole of the taper that installs main reinforcement, the heading of main reinforcement directly offsets with the conical surface of boring the heavy muscle hole of dish, because the heading size of main reinforcement is greater than the small end size in the heavy muscle hole of taper, so it also can play the effect that prevents that body from coming off from main reinforcement.
Embodiment four.
As shown in Figure 5.
A kind of pretensioning prestressed concrete pile, it both can be the circular hollow pile tube, it also can be hollow square pile, it comprises by main muscle 10 and spiral bar 11, main muscle 10 spiral bars 11 are compiled into the reinforcing cage body as the concrete pile stressed member, described reinforcing cage body is positioned in the concrete pile body, the two ends of described main muscle 10 have an end to be connected with to be embedded in the stretch-draw anchor spare 3 in the concrete of the corresponding end of concrete pile at least, stretch-draw anchor spare 3 can adopt Fig. 1,3, in the structure shown in 4 any, any in embodiment one to embodiment three described three kinds of structures just, the difference of concrete pile of the present utility model and prior art maximum is to utilize the stretch-draw anchor spare that is similar to nut to replace traditional end plate at the two ends of main reinforcement, to save material, improve the application life of pipe fitting.
Embodiment five.
Shown in Fig. 5,6.
A kind of pretensioning prestressed concrete pile manufacture method, it mainly may further comprise the steps:
At first, need the prestressing force master muscle 10 of stretch-draw all to put on the stretch-draw anchor spare 3 of the present utility model all, stretch-draw anchor spare 3 can adopt among the embodiment 1-3 any to be realized, it is similar to existing nut structure, Duoed a heavy muscle hole that installs main reinforcement than nut, increased a face that offsets with the main reinforcement heading and from stretch-draw anchor spare 3, come off to prevent main reinforcement;
Secondly, all main muscle 10 are carried out heading, so that described stretch-draw anchor spare 3 can not come off from main muscle;
The 3rd, according to designing requirement establishment reinforcing cage body, idea will make stretch-draw anchor spare 3 be positioned on the two ends of main steel disk;
The 4th, use with stretch-draw anchor spare 3 on the bolt 4 that matches of screw 2 end of the main muscle 10 in the reinforcing cage body is linked to each other with anchor plate 5, the other end links to each other with stretch-draw plate 6, is connected with stretch-draw parts 12 on the stretch-draw plate 6; Can on stretch-draw plate 6, design high 10 millimeters, dark 5 a millimeters tongue and groove 7 in case of necessity, and in tongue and groove, place retaining slurry straw rope, on an end relative, rotate cuff (structure as shown in Figure 6) with anchor plate 5;
The 5th, the above-mentioned reinforcing cage body (as shown in Figure 5) that connects anchor plate 5 and stretch-draw plate 6 is placed a mould, utilize feeding same as the prior art and mold closing mechanism to carry out feeding and matched moulds carries out concrete pouring, after cast finishes, by stretching-machine (can adopt fluid pressure type or mechanical type stretching-machine) integral tension stretch-draw parts, main muscle is applied prestressing force again; And then technology is carried out centrifugal forming and maintenance routinely
The 6th, after prestressed concrete pile reaches the demoulding strength requirement, adopt the method for symmetry, staggered loose bolts 4 to put Zhang Gong's skill, take off bolt 4, anchor plate 5 and stretch-draw plate 6,3 of described stretch-draw anchor spares are stayed in the concrete pile, finish the demoulding, are up to the standards and can dispatch from the factory.
Concrete pile of the present utility model is to have adopted nut type stretch-draw anchor spare with the maximum difference of existing similar stake, and technologies such as remaining cast, maintenance are all same as the prior art, and all kinds of parameters also have mutually with existing end plate type concrete pile, so no longer carefully state.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (6)
1. pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body (8), it is characterized in that being provided with in the described body (8) transitional pore (9) in the screw (2) of mutual perforation, heavy muscle hole (1) and connection screw (2) and heavy muscle hole (1), the diameter of the aperture in described heavy muscle hole (1) and prestressing force master muscle matches, the aperture of described screw (2) is greater than the aperture in heavy muscle hole (1), and described heavy muscle hole (1) is cylindrical hole or polygon prism hole.
2. pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body (8), it is characterized in that being provided with in the described body (8) screw (2) and the heavy muscle hole (1) of mutual perforation, the aperture of described screw (2) is greater than the aperture in heavy muscle hole (1), the diameter of the aperture in described heavy muscle hole (1) and prestressing force master muscle matches, and described heavy muscle hole (1) is cylindrical hole or polygon prism hole.
3. pretensioning prestressed concrete pile stretch-draw anchor spare, comprise body (8), it is characterized in that being provided with in the described body (8) screw (2) and the heavy muscle hole (1) of mutual perforation, described heavy muscle hole (1) is a bellmouth, and the big end of bellmouth is towards screw (2), the diameter of the end diameter of described bellmouth and prestressing force master muscle matches, and described heavy muscle hole (1) is conical bore or polygon prism taper hole.
4. according to the described pretensioning prestressed concrete pile stretch-draw anchor spare of claim 1,2 or 3, it is characterized in that the column anti-rotation structure that the end face profile of described body (8) is polygon column anti-rotation structure or is made up of one section circular arc and at least one straight flange at least.
5. according to claim 1,2 or 3 described pretensioning prestressed concrete pile stretch-draw anchor spares, the profile that it is characterized in that described body (8) is step-like structure, the column anti-rotation structure that has at least the end of a step body to be polygon column anti-rotation structure or to be made up of one section circular arc and at least one straight flange at least.
6. pretensioning prestressed concrete pile, comprise by main muscle (10) and spiral bar (11), main muscle (10) spiral bar (11) is compiled into the reinforcing cage body as the concrete pile stressed member, described reinforcing cage body is positioned in the concrete pile body, the two ends that it is characterized in that described main muscle (10) have at least an end to be connected with to be embedded in the concrete of the corresponding end of concrete pile as the described stretch-draw anchor spare of claim 1,2 or 3 (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200474515U CN201502181U (en) | 2009-07-16 | 2009-07-16 | Pre-tensioning prestressed concrete pile and tension anchoring part thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200474515U CN201502181U (en) | 2009-07-16 | 2009-07-16 | Pre-tensioning prestressed concrete pile and tension anchoring part thereof |
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| CN201502181U true CN201502181U (en) | 2010-06-09 |
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| CN2009200474515U Expired - Fee Related CN201502181U (en) | 2009-07-16 | 2009-07-16 | Pre-tensioning prestressed concrete pile and tension anchoring part thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704471A (en) * | 2012-05-22 | 2012-10-03 | 张俊峰 | Prestress solid concrete preformed pile |
| CN104989715A (en) * | 2015-06-25 | 2015-10-21 | 周兆弟 | Integrated nut for connecting piece |
| CN104989716A (en) * | 2015-06-25 | 2015-10-21 | 周兆弟 | Connecting nut for connecting piece |
| CN105156441A (en) * | 2015-06-25 | 2015-12-16 | 周兆弟 | Connection nut for clamping type connecting piece |
| CN105257663A (en) * | 2015-11-10 | 2016-01-20 | 周兆弟 | Double-end screwing type connecting structure |
-
2009
- 2009-07-16 CN CN2009200474515U patent/CN201502181U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704471A (en) * | 2012-05-22 | 2012-10-03 | 张俊峰 | Prestress solid concrete preformed pile |
| CN104989715A (en) * | 2015-06-25 | 2015-10-21 | 周兆弟 | Integrated nut for connecting piece |
| CN104989716A (en) * | 2015-06-25 | 2015-10-21 | 周兆弟 | Connecting nut for connecting piece |
| CN105156441A (en) * | 2015-06-25 | 2015-12-16 | 周兆弟 | Connection nut for clamping type connecting piece |
| CN105257663A (en) * | 2015-11-10 | 2016-01-20 | 周兆弟 | Double-end screwing type connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20180716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |