CN206034433U - But compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint - Google Patents
But compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint Download PDFInfo
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- CN206034433U CN206034433U CN201620846325.6U CN201620846325U CN206034433U CN 206034433 U CN206034433 U CN 206034433U CN 201620846325 U CN201620846325 U CN 201620846325U CN 206034433 U CN206034433 U CN 206034433U
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- sleeve
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- reinforcing bar
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Abstract
The utility model discloses a but compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint, including a plurality of prestressing steel, a plurality of non - prestressing steel portion, at least one sleeve and two end plates, evenly arrange prestressing steel and non - prestressing steel portion along its circumference direction between two end plates, non prestressed reinforcing bar portion at least one, non prestressed reinforcing bar portion includes two at least non prestressed reinforcing bars, links to each other or direct fixed connection through the sleeve between two adjacent non prestressed reinforcing bars. The utility model discloses but adopted displacement formula sleeve to be in the same place non prestressed steel bar connection in, it is more direct, reliable that mechanical connection's mode lets steel bar connection pass power, relative displacement's characteristics can take place according to the settlement before the stretch -draw for the reinforcing bar at sleeve both ends, make non prestressed reinforcing bar mechanics not produce or produce less pulling force, make the stake type mechanical properties of compound arrangement of reinforcement more reliable.
Description
Technical field
The utility model is related to the fields such as building, traffic, harbour, water conservancy, municipal administration, more particularly to a kind of movable formula sleeve
The compound arrangement of reinforcement pretensioning prestressed concrete pile of connection.
Background technology
Prefabricated pile in the market mainly includes two big class：First, pretensioning prestressed concrete pile, the concrete-pile is only
The prefabricated pile of configuration deformed bar.As pile body only configures deformed bar, due to the reinforcing bar elongation after fracture it is relatively low, so
When pile body bending resistance is destroyed, fragility is larger.2nd, precast concrete pile, the concrete-pile only configure the concrete of nonprestressed reinforcement
Stake, as which only configures nonprestressed reinforcement, the crack resistance of pile body, corrosion resistance are poor.
The reason in view of the above, the prestressed pile of configuration nonprestressed reinforcement is produced in the market, mainly has one
Lower three kinds：1) pre-tensioning system partial prestressing square pile, this stake configures deformed bar simultaneously and pouring for nonprestressed reinforcement builds up
The stake of type；2) arrangement of reinforcement pretensioned prestressed concrete pipe pile is combined, this stake configures deformed bar and non-prestressed steel simultaneously
Muscle the prestressed concrete pipe pile by centrifugal forming；3) lower-prestressed prefabricated concrete solid square pile, by tensioning hot rolling
Reinforcing bar brings the prestressed concrete-pile of pile body.
Pre-tensioning system partial prestressing square pile and compound arrangement of reinforcement pretensioned prestressed concrete pipe pile are while being configured with pre-
Stress reinforcing bar and nonprestressed reinforcement, using the prefabricated pile of pre-tensioning system Tension Forming, the pile-type is due to configuring prestressing force simultaneously
Reinforcing bar and nonprestressed reinforcement, all relatively preferably, which is promoted the use of and can bring preferable society for the durability and ductility of pile body
Benefit and economic benefit.In the pile-type, the setting of nonprestressed reinforcement and connected mode mainly have following two：
First, nonprestressed reinforcement and deformed bar are connected using identical set-up mode, and two ends pier nose is connected with end plate
Connect, whole reinforcing bar does not have joint, as shown in Figure 1-2, when deformed bar tensioning, nonprestressed reinforcement is also opened simultaneously
Draw.In the pile-type of the type, when will reach the prestressing force needed for product due to deformed bar, tensioning displacement is larger (general
10m or so stakes are long, tension deformation be 5～8cm), due to deformed bar tensile strength be far above nonprestressed reinforcement, it is non-it is pre- should
If power reinforcing bar produces such large deformation, state of plastic deformation is come into, nonprestressed reinforcement local diameter may
Change is produced, the mechanical property of reinforcing bar can also may be affected；
2nd, whole of nonprestressed reinforcement is divided into the two sections or three sections connected modes using overlap joint, as shown in Figure 3-4, adopts
This connected mode, each section of reinforcing bar freely can be subjected to displacement, and will not produce tension in reinforcing bar, it is contemplated that each section of reinforcing bar needs to produce
Raw relative displacement, the overlap joint of reinforcing bar are unable to colligation, for the intensity of connection has considerable influence.The maximum problem of which is certain
Existing national standards can not be met in the case of a little《Code for design of concrete structures》The requirement of GB 50010-2010.《Concrete is tied
Structure design specification》Middle regulation bar splicing should be kidnapping overlap joint, and wherein 8.4.2 bars specify that " axial tension or small eccentricity are received
The Reinforcement of idler arm must not be overlapped using colligation ".
Utility model content
For the defect in the nonprestressed reinforcement connection of current compound arrangement of reinforcement pretensioning prestressed concrete pile, this practicality
A kind of compound arrangement of reinforcement pretensioning prestressed concrete pile of movable formula sleeve connection of new offer.
In order to achieve the above object, the technical scheme adopted by the utility model is as follows：It is a kind of can for connect reinforcing bar
Displacement-type sleeve, one end of the reinforcing bar have pier nose, and the sleeve is by first sleeve and is integrally formed in first sleeve upper end
The second sleeve pipe composition；Diameter of the internal diameter of the first sleeve more than pier nose；The internal diameter of second sleeve pipe is more than reinforcing bar
Diameter, less than the diameter of pier nose；Internal thread is provided with the first sleeve.
A kind of compound arrangement of reinforcement pretensioning prestressed concrete pile including above-mentioned sleeve, also including some deformed bars,
Some nonprestressed reinforcement portions and two end plates；Between described two end plates along its circumferential direction be evenly arranged deformed bar and
Nonprestressed reinforcement portion, the nonprestressed reinforcement portion at least one；The nonprestressed reinforcement portion includes that at least two is non-pre-
Stress reinforcing bar, is connected or is directly fixedly connected by sleeve between two neighboring nonprestressed reinforcement.
Further, the quantity of the nonprestressed reinforcement is 2 or 3.
Further, the deformed bar and nonprestressed reinforcement portion pass through pier anchor formula or bolt anchor formula or welded type with
End plate is connected.
The beneficial effects of the utility model are：Existing pre-tensioning system partial prestressing square pile and compound arrangement of reinforcement pre-tensioning system in advance should
The nonprestressed reinforcement of power concrete tubular pile is the overlap joint connected mode by not colligation, and its mechanical property is simultaneously unreliable, and
According to《Code for design of concrete structures》8.4.2 bar specifies, the longitudinal reinforcement that axial tension and small eccentricity tension lose no time must not be adopted
Overlapped with colligation.Employ movable formula sleeve nonprestressed reinforcement links together in the utility model, mechanical connection
Mode makes bar connecting power transmission more direct, reliable；The reinforcing bar at sleeve two ends can occur relative displacement according to the setting before tensioning
Feature, makes nonprestressed reinforcement mechanics not produce or produce less pulling force, makes the pile-type mechanical property of compound arrangement of reinforcement relatively reliable.
Description of the drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is that nonprestressed reinforcement adopts identical set-up mode connection figure with deformed bar；
Fig. 2 is the partial enlarged drawing in Fig. 1；
Fig. 3 is that whole of nonprestressed reinforcement is divided into the two sections or three sections connected mode figures using overlap joint；
Fig. 4 is the partial enlarged drawing in Fig. 3；
Fig. 5 is the sectional view of the utility model embodiment middle sleeve；
Fig. 6 is the compound arrangement of reinforcement pretensioned prestressing coagulation in the utility model embodiment using movable formula sleeve connection
The structural representation of native stake；
In figure, reinforcing bar 1, pier nose 2, sleeve 3, first sleeve 4, the second sleeve pipe 5, deformed bar 6, nonprestressed reinforcement portion
7th, end plate 8, nonprestressed reinforcement 9.
Specific embodiment
For the prestressed pile of current configuration nonprestressed reinforcement, due to its nonprestressed reinforcement connected mode not
Rationally, cause its mechanical property unreliable, especially when the stake is used for uplift pile, pile body axial tension or small eccentricity tension,
Pile body tensile bearing capacity differs and surely reaches the problem of calculated value.
As shown in figure 5, a kind of movable formula sleeve for connecting reinforcing bar 1, one end of the reinforcing bar 1 has pier nose 2, institute
State sleeve 3 to be made up of first sleeve 4 and the second sleeve pipe 5 being integrally formed in 4 upper end of first sleeve；The first sleeve 4 it is interior
Diameter of the footpath more than pier nose 2；Diameter of the internal diameter of second sleeve pipe 5 more than reinforcing bar 1, less than the diameter of pier nose 2；Described first
Internal thread is provided with sleeve pipe 4.
As shown in fig. 6, a kind of compound arrangement of reinforcement pretensioning prestressed concrete pile including above-mentioned sleeve 3, the sleeve is extremely
Rare one, also including some deformed bars 6, some nonprestressed reinforcement portions 7 and two end plates 8；Described two end plates 8 it
Between be evenly arranged deformed bar 6 and nonprestressed reinforcement portion 7, the nonprestressed reinforcement portion 7 at least along its circumferential direction
It is individual；The deformed bar 6 and nonprestressed reinforcement portion 7 are connected with end plate 8；The nonprestressed reinforcement portion 7 includes at least two
Individual nonprestressed reinforcement 9, is connected or is directly fixedly linked by sleeve 3 between two neighboring nonprestressed reinforcement 9；When it is non-it is pre- should
When power reinforcing bar 9 only has two, two nonprestressed reinforcements 9 are connected by sleeve 3, the equal pier nose in 9 two ends of nonprestressed reinforcement, wherein
External screw thread is provided with one pier nose, and the external screw thread is spun with the internal thread on sleeve 3, adjusts threaded by turnbarrel 3
The reinforcing bar of silk enters the depth of sleeve 3, and another pier nose is arranged in sleeve 3, can move freely, and sleeve 3 can be rotated at random, from
And adjust the movable size in sleeve 3 of reinforcing bar pier nose.Can determine that deformed bar 6 needs tensioning by calculating before tensioning
Displacement, mutually should displacement reserve the movable size of pier nose in sleeve 3.After tensioning, deformed bar is produced certain by design requirement
Prestressing force, nonprestressed reinforcement do not produce prestressing force or produce minimum prestressing force.The connected mode of this reinforcing bar makes the company of reinforcing bar
Connect i.e. reliable, being unlikely to the larger internal force of generation again causes reinforcement property to change.When nonprestressed reinforcement 9 has 3 or 3
During the above, wherein at least two root is attached using sleeve 3, and its connected mode is identical with above-mentioned, and remaining is using fixed company
Mode is connect, this is fixedly connected the welding that mode is known in the art or screw thread spins.
The deformed bar 6 and nonprestressed reinforcement portion 7 pass through pier anchor formula or bolt anchor formula or welded type and 8 phase of end plate
Even.
Claims (4)
1. for connecting the movable formula sleeve of reinforcing bar (1), the one end of reinforcing bar (1) has pier nose (2) to one kind, and its feature exists
In sleeve (3) are made up of first sleeve (4) and the second sleeve pipe (5) being integrally formed in first sleeve upper end；Described first
Diameter of the internal diameter of sleeve pipe (4) more than pier nose (2)；Diameter of the internal diameter of the second sleeve pipe (5) more than reinforcing bar (1), less than pier
The diameter of head (2)；Internal thread is provided with first sleeve (4).
2. a kind of compound arrangement of reinforcement pretensioning prestressed concrete pile of the movable formula sleeve including described in claim 1, which is special
Levy and be, also including some deformed bars (6), some nonprestressed reinforcement portions (7) and two end plates (8)；Described two ends
Deformed bar (6) and nonprestressed reinforcement portion (7), the non-prestressed steel are evenly arranged along its circumferential direction between plate (8)
Muscle portion (7) at least one；Described nonprestressed reinforcement portion (7) include at least two nonprestressed reinforcements (9), two neighboring non-
It is connected or is directly fixedly connected by sleeve (3) between deformed bar (9).
3. compound arrangement of reinforcement pretensioning prestressed concrete pile according to claim 2, it is characterised in that described non-prestressed
The quantity of reinforcing bar (9) is 2 or 3.
4. compound arrangement of reinforcement pretensioning prestressed concrete pile according to claim 2, it is characterised in that the prestress steel
Muscle (6) and nonprestressed reinforcement portion (7) pass through pier anchor formula or bolt anchor formula or welded type is connected with end plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846325.6U CN206034433U (en) | 2016-08-03 | 2016-08-03 | But compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846325.6U CN206034433U (en) | 2016-08-03 | 2016-08-03 | But compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint |
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| Publication Number | Publication Date |
|---|---|
| CN206034433U true CN206034433U (en) | 2017-03-22 |
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| CN201620846325.6U Active CN206034433U (en) | 2016-08-03 | 2016-08-03 | But compound arrangement of reinforcement pre -tensioning system prestressed concrete pile of displacement formula muffjoint |
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Cited By (2)
| 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 |
| CN114718059A (en) * | 2022-05-05 | 2022-07-08 | 广州建筑股份有限公司 | Tubular pile connecting structure and pile splicing method thereof |
-
2016
- 2016-08-03 CN CN201620846325.6U patent/CN206034433U/en active Active
Cited By (3)
| 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 |
| CN114718059A (en) * | 2022-05-05 | 2022-07-08 | 广州建筑股份有限公司 | Tubular pile connecting structure and pile splicing method thereof |
| CN114718059B (en) * | 2022-05-05 | 2023-03-21 | 广州建筑股份有限公司 | Tubular pile connecting structure and pile splicing method thereof |
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| GR01 | Patent grant |