CN207597281U - Pre-stressed carbon fiber tensioning equipment - Google Patents
Pre-stressed carbon fiber tensioning equipment Download PDFInfo
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- CN207597281U CN207597281U CN201721579268.0U CN201721579268U CN207597281U CN 207597281 U CN207597281 U CN 207597281U CN 201721579268 U CN201721579268 U CN 201721579268U CN 207597281 U CN207597281 U CN 207597281U
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- stretching
- tensioning
- fixing
- carbon fiber
- stretching end
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Abstract
The utility model discloses a kind of pre-stressed carbon fiber tensioning equipments, including fixing end pedestal, fixing end anchor block, the stretching rope of carbon fiber, stretching end anchor block and stretching end pedestal, the fixing end anchor block is both ends that are cylindrical and being individually fixed in the stretching rope with stretching end anchor block；The stretching end pedestal includes stretching end baseplate part and integrally formed first stretching end convex block portion and the second stretching end convex block portion on the stretching end baseplate part, the stretching end anchor block connects one end of a tensioning screw rod, and the other end of the tensioning screw rod is connected to jack after sequentially passing through the stretching end punched out penetrated through in the first stretching end convex block portion and the second stretching end convex block portion.Using above-mentioned technical proposal, the pre-stressed carbon fiber tensioning equipment of the utility model destroys smaller to the structural strength of bridge deck concrete, can keep the pre-stressed carbon fiber tensioning equipment of the structural strength of bridge entirety as possible.
Description
Technical field
The utility model is related to a kind of pre-stressed carbon fiber tensioning equipments, belong to bridge concrete pre-stress stretching device skill
Art field.
Background technology
At present, bridge applies in bridge concrete structural fortification use mostly using prestressed reinforced concrete structure
Prestressing force drag-line be usually width for 100mm, 50mm or 20mm, rectangle thin plate that thickness is 1mm~3mm (item or
Band), applying the conventional use of stretch-draw prestressing force reinforcement means has two kinds of pre-tensioning system or post stretching.Carbon fiber during because applying stretching force
Rectangle thin plate is also easy to produce unbalance stress and fracture phenomena, so, when both modes are implemented not only reliability and safety compared with
Difference, and control stress for prestressing can only play 40~50 ﹪ of material standard value, and the high-strength characteristic of carbon fiber does not obtain effectively
It plays, it is relatively low to the efficiency of structural strengthening reinforcement.After carbon fiber board of the prior art applies stretching force, carbon fiber board is with mixing
The epoxy construction gluing knot up to 10~60mm (span centre thickness both ends are thin) using filling thickness is needed between Xtah Crude Clay structure layer, such thickness
Glue-line is not only unfavorable for structure stress transmission because epoxy structural rubber bullet mould is low, and epoxy structural rubber auxiliary material is expensive, remote high
In carbon fiber main material, because the shortcomings that its cost performance is poor, has seriously affected the popularization and application of this reinforcement technique.For such case,
Those skilled in the art propose following a solution, i.e., fixing end and stretching end are set up directly under bridge to pull carbon fibre
Dimension thin plate is allowed to be close to bridge floor, needs to open up out to install fixing end pedestal, tensioning in the concrete lower face of bridge floor in this way
The slot of end group seat and jack, fluting is more, and due to being further opened with sliding in rectangular fixing end pedestal and stretching end pedestal
Slot is provided with the anchor block that can be slided in sliding slot in sliding slot, and stretching rope is fixedly mounted on anchor block, therefore leads to pedestal area
It is larger, and then the groove area opened up is also larger, is unfavorable for keeping the structural strength of bridge entirety, and pacifies in practice of construction
Dress required precision is higher, and the error in mounting position of fixing end pedestal and stretching end pedestal be easy to cause the side of the stretching force of jack
To inconsistent with the extending direction of carbon fiber sheet, carbon fiber sheet is caused to damage, influences structural strength.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of areas that can reduce and slot in concrete structure layer surface
And depth, to keep the pre-stressed carbon fiber tensioning equipment of the structural strength of bridge entirety as possible.
To achieve these goals, a kind of pre-stressed carbon fiber tensioning equipment of the utility model, including fixing end pedestal,
Fixing end anchor block, the stretching rope of carbon fiber, stretching end anchor block and stretching end pedestal, the fixing end anchor block and stretching end anchor block
For cylinder and it is individually fixed in the both ends of the stretching rope；
The fixing end pedestal is integrally formed solid including fixing end baseplate part and on the fixing end baseplate part
Fixed end convex block portion, the fixing end anchor block connect one end of a standing screw, and the other end of the standing screw passes through perforation institute
State the fixing nut that is spirally connected after the fixing end punched out in fixing end convex block portion；
The stretching end pedestal includes stretching end baseplate part and integrally formed the on the stretching end baseplate part
One stretching end convex block portion and the second stretching end convex block portion, the stretching end anchor block connect one end of a tensioning screw rod, the tensioning
The other end of screw rod sequentially passes through the stretching end penetrated through in the first stretching end convex block portion and the second stretching end convex block portion and is pierced by
Jack is connected to behind hole；
One is provided between the first stretching end convex block portion and the second stretching end convex block portion and is mounted on the tensioning spiral shell
Counter-force nut on bar, the counter-force nut can jack pull tensioning screw rod when with tensioning screw rod synchronizing moving, and
The position of the first stretching end convex block portion side wall is adjacent to so that stretching rope to be prevented to shrink for being threaded to；In the tensioning end group
Be respectively arranged on seat and fixing end pedestal several through-holes for by fixing bolt by the stretching end pedestal and fixing end
Pedestal is fixed on construction station.
Several through-holes opened up on stretching end pedestal are distributed on the both sides of the tensioning screw rod；It is opened on fixing end pedestal
If several through-holes be distributed on the both sides of the standing screw.
The through-hole is slot hole.
The fixing end anchor block passes through a fixing end sleeve connection, one end of the fixing end sleeve with the standing screw
The fixing end anchor block is bolted in, the other end is bolted in the standing screw.
The stretching end anchor block passes through a stretching end sleeve connection, one end of the stretching end sleeve with the tensioning screw rod
The stretching end anchor block is bolted in, the other end is bolted in the tensioning screw rod.
The end of the stretching rope is extend into the fixing end holding chamber of the coaxial line opened up on the fixing end anchor block simultaneously
It is fixed clamped by two fixing end intermediate plates.
The end of the stretching rope is extend into the stretching end holding chamber of the coaxial line opened up on the stretching end anchor block simultaneously
It is fixed clamped by two stretching end intermediate plates.
The jack is centre-hole jack, after the tensioning screw rod passes through the punching duct on the axis
Tensioning nut is bolted in, the tensioning nut is used to withstand the jack when jack extends so as to drive the tensioning spiral shell
Bar moves.
Using above-mentioned technical proposal, the pre-stressed carbon fiber tensioning equipment of the utility model, due to fixing end pedestal and circle
The fixing end anchor block separation of cylindricality, stretching end pedestal are detached with cylindrical stretching end anchor block, therefore are not needed in fixed end group
Stay the assembly space of fixing end anchor block and stretching end anchor block on seat and stretching end pedestal, therefore compared to traditional tensioning equipment,
The area of fixing end pedestal and stretching end pedestal is much smaller, therefore the area of the slot opened up on concrete is also smaller, depth
Also it is shallower, smaller is destroyed to the structural strength of bridge deck concrete；Simultaneous tension screw rod is pierced by with standing screw in fixing end respectively
Hole and stretching end punched out intermediate gap coordinate, and angle can be acted on self adjustment by stretching force during tensioning, installation accuracy mistake occur
It can still ensure fixing end anchor block, stretching end anchor block, fixing end sleeve, stretching end sleeve coaxial line when poor, so as to the greatest extent
It can be avoided that and carbon fiber sheet is caused to damage in stretching process.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the partial sectional view of the utility model.
Specific embodiment
Below by way of the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, the present embodiment provides a kind of pre-stressed carbon fiber tensioning equipment, including fixing end pedestal 11, fixing end
Anchor block 12, the stretching rope 3 of carbon fiber, stretching end anchor block 22 and stretching end pedestal 21, the fixing end anchor block 12 and stretching end
Anchor block 12 is both ends that are cylindrical and being individually fixed in the stretching rope 3；
The fixing end pedestal 11 includes fixing end baseplate part 11a and the one on the fixing end baseplate part 11a
Molding fixing end convex block portion 11b, the fixing end anchor block 12 connect one end of a standing screw 13, the standing screw 13
The other end passes through the fixing nut that is spirally connected after the fixing end punched out (not indicated in figure) for penetrating through the fixing end convex block portion 11b
140；
The stretching end pedestal 21 includes stretching end baseplate part 21a and the one on the stretching end baseplate part 21a
Molding first stretching end convex block portion 21b and the second stretching end convex block portion 21c, the stretching end anchor block 22 connect a tensioning screw rod
23 one end, the other end of the tensioning screw rod 23 pass through perforation the first stretching end convex block portion 21b and the second stretching end convex
Jack 4 is connected to after the stretching end punched out (not indicated in figure) of block portion 21c；
One is provided between the first stretching end convex block portion 21b and the second stretching end convex block portion 21c mounted on described
Counter-force nut 240 on tensioning screw rod 23, the counter-force nut 240 can be when jack 4 pull tensioning screw rod 23 with tensioning
23 synchronizing moving of screw rod, and in 4 release travel of jack and after tensioning operation first is adjacent to for being threaded to
The position of stretching end convex block portion 21b side walls is to prevent stretching rope 3 from shrinking；In the stretching end pedestal 21 and fixing end pedestal
Be respectively arranged on 11 several through-holes 100 for by fixing bolt (not shown) by the stretching end pedestal 21 and fixation
End group seat 11 is fixed on construction station, i.e. concrete structure layer surface, and fixing bolt is perpendicularly fixed at concrete knot during construction
Then the through-hole 100 of stretching end pedestal 21 or fixing end pedestal 11 is passed through fixing bolt, then again by fixing bolt by structure layer surface
Nut 200 is tightened against on fixing bolt.
Several through-holes 100 opened up on stretching end pedestal 21 are distributed on the both sides of the tensioning screw rod 23；In fixing end
Several through-holes 100 opened up on pedestal 11 are distributed on the both sides of the standing screw 13.
The through-hole 100 is slot hole, for error transfer factor.
The fixing end anchor block 12 is connect with the standing screw 13 by a fixing end sleeve 14, the fixing end sleeve
14 one end is bolted in the fixing end anchor block 12, and the other end is bolted in the standing screw 13.
The stretching end anchor block 22 passes through a stretching end sleeve connection 24, the stretching end sleeve with the tensioning screw rod 23
24 one end is bolted in the stretching end anchor block 22, and the other end is bolted in the tensioning screw rod 23.
The end of the stretching rope 3 extend into the fixing end holding chamber of the coaxial line opened up on the fixing end anchor block 12
It is in 120 and fixed clamped by two fixing end intermediate plates 15；The end of the stretching rope 3 is extend on the stretching end anchor block 22
It is in the stretching end holding chamber 220 of the coaxial line opened up and fixed clamped by two stretching end intermediate plates 25.
The jack 4 is centre-hole jack, and the tensioning screw rod 23 passes through the center hole on 4 axis of jack
Tensioning nut 41 is bolted in behind road, the tensioning nut 41 is used to withstand the jack 4 when jack 4 extends so as to band
The tensioning screw rod 23 is moved to move.
Using above-mentioned technical proposal, the pre-stressed carbon fiber tensioning equipment of the utility model, due to fixing end pedestal and circle
The fixing end anchor block separation of cylindricality, stretching end pedestal are detached with cylindrical stretching end anchor block, therefore are not needed in fixed end group
Stay the assembly space of fixing end anchor block and stretching end anchor block on seat and stretching end pedestal, therefore compared to traditional tensioning equipment,
The area of fixing end pedestal and stretching end pedestal is much smaller, therefore the area of the slot opened up on concrete is also smaller, depth
Also it is shallower, smaller is destroyed to the structural strength of bridge deck concrete；Simultaneous tension screw rod is pierced by with standing screw in fixing end respectively
Hole and stretching end punched out intermediate gap coordinate, and angle can be acted on self adjustment by stretching force during tensioning, installation accuracy mistake occur
It can still ensure fixing end anchor block, stretching end anchor block, fixing end sleeve, stretching end sleeve coaxial line when poor, so as to the greatest extent
It can be avoided that and carbon fiber sheet is caused to damage in stretching process.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not intended to limit the embodiments.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change thus extended out
Among the dynamic protection domain created still in the utility model.
Claims (8)
1. a kind of pre-stressed carbon fiber tensioning equipment, it is characterised in that：Including fixing end pedestal, fixing end anchor block, carbon fiber
Stretching rope, stretching end anchor block and stretching end pedestal, the fixing end anchor block are cylindrical with stretching end anchor block and fix respectively
In the both ends of the stretching rope；The fixing end pedestal includes fixing end baseplate part and one on the fixing end baseplate part
Body formed fixing end convex block portion, the fixing end anchor block connect one end of a standing screw, the other end of the standing screw
Be spirally connected a fixing nut after across the fixing end punched out penetrated through in the fixing end convex block portion；The stretching end pedestal includes opening
Pull end baseplate part and integrally formed first stretching end convex block portion and the second stretching end are convex on the stretching end baseplate part
Block portion, the stretching end anchor block connect one end of a tensioning screw rod, and the other end of the tensioning screw rod is sequentially passed through described in perforation
Jack is connected to after stretching end punched out in first stretching end convex block portion and the second stretching end convex block portion；At described first
A counter-force nut being mounted on the tensioning screw rod is provided between pull end convex block portion and the second stretching end convex block portion, it is described anti-
Power nut can be adjacent to described the when jack pulls tensioning screw rod with tensioning screw rod synchronizing moving, and for being threaded to
The position of one stretching end convex block portion side wall is to prevent stretching rope from shrinking；On the stretching end pedestal and fixing end pedestal respectively
Several through-holes are provided with for the stretching end pedestal and fixing end pedestal to be fixed on construction station by fixing bolt.
2. pre-stressed carbon fiber tensioning equipment as described in claim 1, it is characterised in that：If it is opened up on stretching end pedestal
Dry through-hole is distributed on the both sides of the tensioning screw rod；Several through-holes opened up on fixing end pedestal are distributed on the standing screw
Both sides.
3. pre-stressed carbon fiber tensioning equipment as described in claim 1, it is characterised in that：The through-hole is slot hole.
4. pre-stressed carbon fiber tensioning equipment as described in claim 1, it is characterised in that：The fixing end anchor block with it is described solid
Screw rod is determined by a fixing end sleeve connection, and one end of the fixing end sleeve is bolted in the fixing end anchor block, other end spiral shell
It is connected to the standing screw.
5. such as claim 1-4 any one of them pre-stressed carbon fiber tensioning equipments, it is characterised in that：The stretching end anchor block
With the tensioning screw rod by a stretching end sleeve connection, one end of the stretching end sleeve is bolted in the stretching end anchor block,
The other end is bolted in the tensioning screw rod.
6. such as claim 1-4 any one of them pre-stressed carbon fiber tensioning equipments, it is characterised in that：The end of the stretching rope
Portion extend into the holding chamber of coaxial line opened up on the fixing end anchor block and is fixed clamped by two fixing end intermediate plates.
7. such as claim 1-4 any one of them pre-stressed carbon fiber tensioning equipments, it is characterised in that：The end of the stretching rope
Portion extend into the holding chamber of coaxial line opened up on the stretching end anchor block and is fixed clamped by two stretching end intermediate plates.
8. such as claim 1-4 any one of them pre-stressed carbon fiber tensioning equipments, it is characterised in that：The jack is wears
Core type jack, the tensioning screw rod are bolted in tensioning nut after passing through the punching duct on the axis, described
Nut is drawn for withstanding the jack when jack extends so as to which the tensioning screw rod be driven to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579268.0U CN207597281U (en) | 2017-11-22 | 2017-11-22 | Pre-stressed carbon fiber tensioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579268.0U CN207597281U (en) | 2017-11-22 | 2017-11-22 | Pre-stressed carbon fiber tensioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207597281U true CN207597281U (en) | 2018-07-10 |
Family
ID=62760410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721579268.0U Active CN207597281U (en) | 2017-11-22 | 2017-11-22 | Pre-stressed carbon fiber tensioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207597281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964880A (en) * | 2017-11-22 | 2018-04-27 | 上海悍马建筑科技有限公司 | Pre-stressed carbon fiber tensioning equipment |
| CN110700620A (en) * | 2019-10-28 | 2020-01-17 | 宁波大学 | Civil structure's reinforcing apparatus and installation mechanism |
-
2017
- 2017-11-22 CN CN201721579268.0U patent/CN207597281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964880A (en) * | 2017-11-22 | 2018-04-27 | 上海悍马建筑科技有限公司 | Pre-stressed carbon fiber tensioning equipment |
| CN107964880B (en) * | 2017-11-22 | 2023-12-15 | 上海悍马建筑科技有限公司 | Prestressed carbon fiber stretching device |
| CN110700620A (en) * | 2019-10-28 | 2020-01-17 | 宁波大学 | Civil structure's reinforcing apparatus and installation mechanism |
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