CN205369240U - Compound arrangement of reinforcement prestressed concrete dysmorphism tubular pile - Google Patents
Compound arrangement of reinforcement prestressed concrete dysmorphism tubular pile Download PDFInfo
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- CN205369240U CN205369240U CN201620071132.8U CN201620071132U CN205369240U CN 205369240 U CN205369240 U CN 205369240U CN 201620071132 U CN201620071132 U CN 201620071132U CN 205369240 U CN205369240 U CN 205369240U
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Abstract
The utility model discloses a compound arrangement of reinforcement prestressed concrete dysmorphism tubular pile, including the limited prestressing framework of steel reinforcement, with the concrete pile body of limited prestressing framework of steel reinforcement parcel to and it is protruding stupefied around setting up in several circles of concrete pile body surface, the limited prestressing framework of steel reinforcement is including being used for setting up the end plate in concrete pile body both ends for bury underground concrete pile these internal and both ends all with correspond several the prestressing steel that the end plate is connected, be used for burying underground that this internal and be the non - prestressing steel that the law was arranged with prestressing steel at concrete pile, and the several tension sleeve of fixing all prestressing steel and the connection of non - prestressing steel with surrounding. The utility model discloses mainly arrange the use through prestressing steel and non - prestressing steel's cooperation, improve the performance of skeleton, make it to keep the peculiar advantage of common concrete component and fully prestressed concrete component, improve its defect again to improve holistic ductility of tubular pile and shock resistance.
Description
Technical field
This utility model relates to the concrete tubular pile of foundation construction engineering, specifically, refers to a kind of compound reinforcement prestressed concrete abnormity pile tube.
Background technology
It is known that the distinct disadvantage of normal concrete pile tube is that its cracking resistance is poor, rigidity is low, and deformation performance is bad, restricted application.And existing prestressed concrete pipe pile is fully prestressed concrete pile tube, though having the advantage such as good cracking resistance, relatively large rigidity, but find there is serious shortcoming in practice.Specifically, prestressed concrete pipe pile antiarch value is excessive, and crack is developed along with constantly increasing of antiarch value, causes that the service life of component is not long, and its ductility is poor, and base structure antidetonation is unfavorable.
On the other hand, current domestic use draw hole plant stake or use friction pile engineering in, generally the frictional force of pile tube outer surface is required higher, the more big frictional force of matsurface is more big, contact area is more many, frictional force is more strong, and therefore former routine is faced directly on the basis of column pile tube, and someone designs the pile tube surface structure (such as the patent No. 200620107749.7) with waveform, the threaded structure in surface (such as the patent No. 201410211021.8) in recent years.Although such structure solves to improve the problem of pile tube outer surface frictional force theoretically, but its practical application effect not ideal enough, therefore its side of being designed and construction party are not accepted extensively.
Deeply trace it to its cause discovery, the engineering construction process of stake is planted based on existing hole of drawing, pile tube belongs to when construction embedment is driven underground by force, and the non-special-shaped pile tube faced directly in this surface is with the maximum exterior surface diameter hole of squeezing into mate on ground in entering ground process, just inevitable in non-maximum exterior surface diametrical position generation gap, the frictional force so causing these positions lacks, reduce this abnormity pile tube overall friction in foundation soil on the contrary, naturally do not give full play to the theoretical effect of the non-special-shaped pile tube faced directly in this surface.Although screw thread pile tube is different with routine in its occupation mode disclosed in the patent No. 201410211021.8, but owing to the torsional property of concrete component is poor, its described scheme adopting rotation mode to insert in foundation soil lacks now current when puts into practice cogency reliably.
Utility model content
For overcoming prior art Problems existing, this utility model provide a kind of be skillfully constructed, simple in construction, easy to use, can effectively solve the problem that tube pile structure ductility is poor and antidetonation is more weak and the compound reinforcement prestressed concrete abnormity pile tube of frictional resistance disappearance problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of compound reinforcement prestressed concrete abnormity pile tube, including limited prestressed reinforcement framework, wraps up the concrete-pile body of limited prestressed reinforcement framework, and convex stupefied around being arranged at a few of concrete-pile body outer surface；Described limited prestressing framework of steel reinforcement includes the end plate for being arranged at concrete-pile body two ends, for be embedded in these internal and two ends of concrete-pile all with several deformed bars of corresponding end plate connection, for be embedded in concrete-pile this internal and with deformed bar be rule arrange nonprestressed reinforcement, and circumferentially all deformed bars and nonprestressed reinforcement are connected fixing several cranses, wherein, described deformed bar and nonprestressed reinforcement surround the shape mated with end plate jointly.Normally, the form fit of the shape of end plate and concrete-pile body, it is possible to have the shape such as circle, square, hexagon, octagon.
In order to strengthen the contact area of a surface and foundation soil and cementing character to improve periphery frictional force, described concrete-pile body outer surface offers vertically at least two through stakes long lead stock tank, this leads stock tank by described convex stupefied partition is the segment of respective numbers.
In order to improve frictional force, the described convex stupefied height h protruding from concrete-pile body outer surface is 20mm≤h≤50mm.
For practical requirement, the diameter D of described concrete-pile body is 300mm≤D≤1500mm.
Bury efficiency to improve construction, described convex stupefied around to being 15 °≤α≤90 ° with axial angle α.
In order to ensure that dredging effect avoids affecting body construction simultaneously, described in lead stock tank setting by convex stupefied outmost surface, and its degree of depth is not less than convex stupefied height.
For adapting to different foundation soil, described convex stupefied can equal or unequal lay.
Preferably, described in lead stock tank and have 2～8, be arranged at concrete-pile body outer surface with circumference uniform distribution form.
Preferably, the grooved leading stock tank described in is any one in circular arc, U-shaped, isosceles trapezoid or rectangle.
Further, as a kind of arrangement mode, described deformed bar and nonprestressed reinforcement interphase distribution.Specifically, this interphase distribution can be a deformed bar and the spaced arrangement of a nonprestressed reinforcement, and namely the both sides of every deformed bar are all nonprestressed reinforcements, and the both sides of every nonprestressed reinforcement are all deformed bars；Can also be, many deformed bars and the spaced arrangement of Duo Gen nonprestressed reinforcement, such as one, every two deformed bar intervals nonprestressed reinforcement layout, each deformed bar interval two nonprestressed reinforcement layouts, the two nonprestressed reinforcement layouts in every two deformed bar intervals etc..This arrangement mode is suitable for the multiple situation that pile tube stress is more balanced.
Further, as a kind of arrangement mode, described deformed bar is at the side arranged adjacent of correspondingly-shaped end plate, and described nonprestressed reinforcement is at the opposite side arranged adjacent of correspondingly-shaped end plate.Specifically, this arrangement mode is primarily suitable for the situation of pile tube discontinuity equalization, arranges more deformed bar in the bigger side of precognition stress, and the less side of stress is to arrange nonprestressed reinforcement.
Additionally, this utility model additionally provides the another kind of implementation of this compound reinforcement prestressed concrete abnormity pile tube, specifically include limited prestressing framework of steel reinforcement, wrap up the concrete-pile body of limited prestressed reinforcement framework, and around being arranged at a few grooves of concrete-pile body outer surface, what offer at least two through two ends on described concrete-pile body outer surface vertically leads stock tank, and this is led stock tank and described groove is cut off the segment for respective numbers.Wherein, the degree of depth degree of depth less than groove of stock tank is led described in；The concrete structure of described limited prestressing framework of steel reinforcement is consistent with the above.
Compared with prior art, this utility model has the advantages that
null(1) this utility model is skillfully constructed，Simple in construction，Arrange mainly through the compound of deformed bar and nonprestressed reinforcement and use，Improve the performance of skeleton，So as to keep the peculiar advantage of normal concrete component and fully prestressed concrete component，Improve again its defect，Thus improving the overall ductility of pile tube and shock resistance，Specifically under normal working load，The part allowing cross section is in tension state，Crack even occurs，And utilize part nonprestressed reinforcement to control，Reduce the compressive pre-stress in cross section，The inverted camber caused by the elasticity of pile tube and time deformation is made to reduce，Local stress reduces，And this pile tube rigidity before not splitting is big，And though rigidity decreases after ftractureing，But rigidity can partly be recovered after off-load，Crack closure ability is strong，Thus improve the ductility of pile tube and reducing the performance weakening of structure under course under cyclic loading，Contribute to increasing anti-seismic performance，And owing to adding nonprestressed reinforcement，It is poor that it can control contraction、Temperature differences etc. cause the development in crack，Postpone the generation of bending cracks、Development，Alleviate deadweight、Reduce cost，It is with a wide range of applications，It is suitable for popularization and application.
(2) this utility model also arranges at the stake body surface with convex stupefied or groove and leads stock tank, make pile tube that the groove on the surface earth to drawing in hole, mud and cementing serosity can be relied in the process sink to foundation soil to lead, so as to be sufficient filling with in the less position of stake surface diameter, ensure and greatly strengthen surface frictional force in foundation soil, give full play to the theoretical effect of abnormity pile tube, improve the load-carrying properties of pile tube.
Accompanying drawing explanation
Fig. 1 is one end of the present utility model partial structurtes schematic diagram.
Fig. 2 is cross section structure schematic diagram of the present utility model.
Fig. 3 is end face structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment 1
As shown in Figure 1 to Figure 2, this compound reinforcement prestressed concrete abnormity pile tube, including limited prestressed reinforcement framework, wrap up the concrete-pile body 1 of limited prestressed reinforcement framework, and around be arranged at concrete-pile body outer surface a few convex stupefied 2, described limited prestressing framework of steel reinforcement includes the end plate 3 for being arranged at concrete-pile body two ends, for be embedded in these internal and two ends of concrete-pile all with several deformed bars 4 of corresponding end plate connection, for be embedded in concrete-pile this internal and with deformed bar be rule arrange nonprestressed reinforcement 5, and circumferentially all deformed bars and nonprestressed reinforcement are connected fixing several cranses 6, wherein, described deformed bar and nonprestressed reinforcement surround the shape mated with end plate jointly.Normally, the form fit of the shape of end plate and concrete-pile body, it is possible to have the shape such as circle, square, hexagon, octagon.
In order to strengthen the contact area of a surface and foundation soil and cementing character to improve periphery frictional force, described concrete-pile body outer surface offers vertically at least two through stakes long lead stock tank 7, this leads stock tank by described convex stupefied partition is the segment of respective numbers.Bury efficiency to improve construction, described convex stupefied around to being 15 °≤α≤90 ° with axial angle α.In order to improve frictional force, the described convex stupefied height h protruding from concrete-pile body outer surface is 20mm≤h≤50mm, and its width also can select within the scope of this.For practical requirement, the diameter D of described concrete-pile body is 300mm≤D≤1500mm.According to actual demand, convex stupefied length can be configured by 200mm～500mm.In order to ensure that dredging effect avoids affecting body construction simultaneously, described in lead stock tank setting by convex stupefied outmost surface, and its degree of depth is not less than convex stupefied height.
Preferably, described in lead stock tank and have 2～8, be arranged on concrete-pile body outer surface with circumference uniform distribution form.Preferably, the grooved leading stock tank described in is any one in circular arc, U-shaped, isosceles trapezoid or rectangle.
Further, as a kind of arrangement mode, described deformed bar and nonprestressed reinforcement interphase distribution.As another kind of arrangement mode, described deformed bar is at the side arranged adjacent of corresponding end plate shape, and described nonprestressed reinforcement is at the opposite side arranged adjacent of corresponding end plate shape.
It addition, also through hole can be arranged along this abnormity pile tube axis so that it is entirety is in a cylindrical shape.
Pile tube of the present utility model meets the line of specifications such as GB GBJ10 " Code for design of concrete structures ", GB GB13476 " pretensioned prestressed concrete pipe pile ", GB design atlas 10G409 " prestressed concrete pipe pile ", and the specialty such as architectural engineering, water conservancy and hydropower architectural engineering is about the basic demand of prestressed concrete pipe pile.
During application, still can adopt and draw hole and plant pile driving construction mode, or it is equipped with cementing slurry filling, when after this abnormity pipe pile end portion hand-hole, in hole, earth, mud and cementing serosity fill the position to each outer surface small diameter along leading stock tank, make pile tube outer surface be fully contacted in soil, substantially increase frictional force.
Above-described embodiment is only preferred embodiment of the present utility model; the not restriction to this utility model protection domain; in every case adopt design principle of the present utility model and the change carrying out non-creativeness work on this basis and making, all should belong within protection domain of the present utility model.
Claims (10)
1. a compound reinforcement prestressed concrete abnormity pile tube, including limited prestressed reinforcement framework, wrap up the concrete-pile body of limited prestressed reinforcement framework, and it is convex stupefied around being arranged at a few of concrete-pile body outer surface, it is characterized in that, described limited prestressing framework of steel reinforcement includes the end plate for being arranged at concrete-pile body two ends, for be embedded in these internal and two ends of concrete-pile all with several deformed bars of corresponding end plate connection, for be embedded in concrete-pile this internal and with deformed bar be rule arrange nonprestressed reinforcement, and circumferentially all deformed bars and nonprestressed reinforcement are connected fixing several cranses, wherein, described deformed bar and nonprestressed reinforcement surround the shape mated with end plate jointly.
2. compound reinforcement prestressed concrete abnormity pile tube according to claim 1, it is characterized in that, described concrete-pile body outer surface offers vertically at least two through stakes long lead stock tank, this leads stock tank by described convex stupefied partition is the segment of respective numbers.
3. compound reinforcement prestressed concrete abnormity pile tube according to claim 1, it is characterised in that the described convex stupefied height protruding from concrete-pile body outer surfacehFor 20mm≤h≤50mm。
4. compound reinforcement prestressed concrete abnormity pile tube according to claim 1, it is characterised in that the diameter D of described concrete-pile body is 300mm≤D≤1500mm.
5. the compound reinforcement prestressed concrete abnormity pile tube according to any one of claim 1 ~ 4, it is characterised in that described convex stupefied around to axial angleαBe 15 °≤α≤90°。
6. the compound reinforcement prestressed concrete abnormity pile tube according to any one of claim 2 ~ 4, it is characterised in that described in lead stock tank setting by convex stupefied outmost surface, and its degree of depth is not less than convex stupefied height.
7. compound reinforcement prestressed concrete abnormity pile tube according to claim 6, it is characterised in that described in lead stock tank and have 2 ~ 8, be arranged at concrete-pile body outer surface with circumference uniform distribution form.
8. compound reinforcement prestressed concrete abnormity pile tube according to claim 6, it is characterised in that described in lead the grooved of stock tank be any one in circular arc, U-shaped, isosceles trapezoid or rectangle.
9. the compound reinforcement prestressed concrete abnormity pile tube according to any one of claim 1 ~ 4, it is characterised in that described deformed bar and nonprestressed reinforcement interphase distribution.
10. the compound reinforcement prestressed concrete abnormity pile tube according to any one of claim 1 ~ 4, it is characterised in that described deformed bar is at the side arranged adjacent of correspondingly-shaped end plate, and described nonprestressed reinforcement is at the opposite side arranged adjacent of correspondingly-shaped end plate.
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| CN201620071132.8U CN205369240U (en) | 2016-01-18 | 2016-01-18 | Compound arrangement of reinforcement prestressed concrete dysmorphism tubular pile |
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| CN201620071132.8U CN205369240U (en) | 2016-01-18 | 2016-01-18 | Compound arrangement of reinforcement prestressed concrete dysmorphism tubular pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088082A (en) * | 2016-08-03 | 2016-11-09 | 浙江大学建筑设计研究院有限公司 | Use the compound arrangement of reinforcement pretensioning prestressed concrete pile of movable formula sleeve connection |
-
2016
- 2016-01-18 CN CN201620071132.8U patent/CN205369240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088082A (en) * | 2016-08-03 | 2016-11-09 | 浙江大学建筑设计研究院有限公司 | Use the compound arrangement of reinforcement pretensioning prestressed concrete pile of movable formula sleeve connection |
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