CN207597278U - The pre-stressed carbon fiber tensioning equipment of high-order tensioning - Google Patents
The pre-stressed carbon fiber tensioning equipment of high-order tensioning Download PDFInfo
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- CN207597278U CN207597278U CN201721575860.3U CN201721575860U CN207597278U CN 207597278 U CN207597278 U CN 207597278U CN 201721575860 U CN201721575860 U CN 201721575860U CN 207597278 U CN207597278 U CN 207597278U
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Abstract
The utility model discloses a kind of pre-stressed carbon fiber tensioning equipments of high-order tensioning, 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 rectangular-shape with stretching end anchor block and is individually fixed in the both ends of the stretching rope；The fixing end pedestal includes fixing end horizontal plate part, two fixing end vertical plate portions for being connected to fixing end horizontal plate part both sides, two fixing ends for being connected to fixing end vertical plate portion top and is horizontally mounted plate portion；The fixing end anchor block is fixed in the fixing end pedestal；The stretching end pedestal includes stretching end horizontal plate part, two stretching end vertical plate portions for being connected to stretching end horizontal plate part both sides, two stretching ends for being connected to stretching end vertical plate portion top and is horizontally mounted plate portion.Using above-mentioned technical proposal, the depth of the slot opened up on concrete is shallower, and smaller is destroyed to the structural strength of bridge deck concrete.
Description
Technical field
The utility model is related to a kind of pre-stressed carbon fiber tensioning equipments of high-order tensioning, belong to bridge concrete prestressing force
Tensioning equipment technical 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 component, tensioning in the concrete lower face of bridge floor in this way
Hold the slot of component, fluting is more, especially stretching end needs open up installation stretching end pedestal, jack mounting base slot, simultaneously
Sliding slot is additionally provided in stretching end pedestal, the stretching end anchor block that can be slided in sliding slot is provided in sliding slot, stretching rope
One end is fixedly mounted on stretching end anchor block, the tensioning screw rod being fixed on by jack pulling on stretching end anchor block, so as to band
Dynamic stretching end anchor block slides in sliding slot, and then pulls stretching rope tensioning, due to being provided with sliding slot, results in stretching end base in this way
The area of seat is larger, and then the groove area opened up is also larger, is unfavorable for keeping the structural strength of bridge entirety.
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 high-order tensioning of the structural strength of bridge entirety as possible.
To achieve these goals, the pre-stressed carbon fiber tensioning equipment of a kind of high-order tensioning 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
For rectangular-shape and the both ends of the stretching rope are individually fixed in stretching end anchor block；The fixing end pedestal includes fixing end water
Flat part, two fixing end vertical plate portions for being connected to fixing end horizontal plate part both sides, two to be connected to fixing end vertical
The fixing end on plate portion top is horizontally mounted plate portion；The fixing end anchor block is fixed in the fixing end pedestal；The stretching end
Pedestal includes stretching end horizontal plate part, two stretching end vertical plate portions for being connected to stretching end horizontal plate part both sides, two difference
The stretching end for being connected to stretching end vertical plate portion top is horizontally mounted plate portion；The stretching end anchor block is located at the stretching end pedestal
It is interior and can be slided in the stretching end pedestal；It is set in the side far from the fixing end pedestal of the stretching end pedestal
There is a jack block, the jack block is withstood on the stretching end pedestal；The stretching end anchor block connects a tensioning spiral shell
One end of bar, the other end of the tensioning screw rod are connected to thousand after passing through the stretching end punched out penetrated through on the jack block
Jin top；A cavity is offered on the jack block, the tensioning screw rod passes through the cavity；It is set in the cavity
There is a counter-force nut, the counter-force nut can be synchronized when jack pulls tensioning screw rod in the cavity with tensioning screw rod
It is mobile, and be used to be threaded to the sidewall locations of the close stretching end anchor block side of cavity so that stretching rope to be prevented to shrink；Institute
State that stretching end is horizontally mounted plate portion and fixing end is horizontally mounted in plate portion and is respectively arranged with several through-holes for passing through fixing bolt
The stretching end pedestal and fixing end pedestal are fixed on construction station.
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.
A direct through groove is offered on the stretching end horizontal plate part, there are two the settings of the stretching end anchor block lower face
Screw, the nut of the screw are located in the direct through groove.
Using above-mentioned technical proposal, the pre-stressed carbon fiber tensioning equipment of the high-order tensioning of the utility model passes through change
The structure of fixing end pedestal and stretching end pedestal, make the station of fixing end anchor block and stretching end anchor block be up-shifted to be close to it is mixed
The high station position of Xtah Crude Clay structure layer surface, therefore compared to traditional tensioning equipment, the depth of the slot opened up on concrete
It is shallower, while jack mounting base in the prior art is eliminated, but using centre-hole jack, there is no need on concrete
The slot of the jack mounting base of larger area is opened up, smaller is destroyed to the structural strength of bridge deck concrete.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the 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 of high-order tensioning, including fixed end group
Seat 1, fixing end anchor block 2, the stretching rope 3 of carbon fiber, stretching end anchor block 4 and stretching end pedestal 5, the fixing end anchor block 2 with
Stretching end anchor block 4 is rectangular-shape and is individually fixed in the both ends of the stretching rope 3；The fixing end pedestal 1 includes fixing end
Horizontal plate part 11, be connected to 11 both sides of fixing end horizontal plate part two fixing end vertical plate portions 12, two be connected to it is solid
The fixing end on 12 top of fixed end vertical plate portion is horizontally mounted plate portion 13；It is provided in the upper surface of the fixing end horizontal plate part 11
Fixing groove 11a, the fixing end anchor block 2 are located in the fixing groove 11a；The stretching end pedestal 5 includes stretching end level board
Portion 51, the two stretching end vertical plate portions 52, two for being connected to 51 both sides of stretching end horizontal plate part are connected to stretching end and erect
The stretching end on 52 top of straight plate part is horizontally mounted plate portion 53；The stretching end anchor block 4 is located in the stretching end pedestal 5 and can
It is slided in the stretching end pedestal 5；The side far from the fixing end pedestal 2 of the stretching end pedestal 5 is provided with one
Jack block 6, the jack block 6 are withstood on the stretching end pedestal 5；The stretching end anchor block 4 connects a tensioning spiral shell
One end of bar 7, the other end of the tensioning screw rod 7 connect after passing through the stretching end punched out penetrated through on the jack block 6
To jack 8；A cavity 61 is offered on the jack block 6, the tensioning screw rod 7 passes through the cavity 61；Institute
It states and a counter-force nut 9 is provided in cavity 61, the counter-force nut 9 can be when jack 8 pulls tensioning screw rod 7 described recessed
With 7 synchronizing moving of tensioning screw rod in chamber 61, and the side wall for being threaded to close 4 side of stretching end anchor block of cavity 61
61a positions are to prevent stretching rope 3 from shrinking.
Plate portion 53 is horizontally mounted in the stretching end and fixing end is horizontally mounted in plate portion 13 and is respectively arranged with several lead to
Hole 100 is used to that the stretching end pedestal 5 and fixing end pedestal 1 to be fixed on construction station by fixing bolt (not shown)
On, i.e. concrete structure layer surface.
The jack 8 is centre-hole jack, and the tensioning screw rod 7 passes through the center hole on 8 axis of jack
Tensioning nut 10 is bolted in behind road, the tensioning nut 10 is used to withstand the jack 8 when jack 8 extends so as to drive
The tensioning screw rod 7 moves.
A direct through groove 51a is offered on the stretching end horizontal plate part 51, is set in 4 lower face of stretching end anchor block
There are two screw 41, the nut of the screw 41 is located in the direct through groove 51a so as to play the role of guiding and limiting.
Using above-mentioned technical proposal, the pre-stressed carbon fiber tensioning equipment of the high-order tensioning of the utility model passes through change
The structure of fixing end pedestal and stretching end pedestal, makes fixing end anchor block and the station of stretching end anchor block be close to concrete
Surface, therefore compared to traditional tensioning equipment, the depth of the slot opened up on concrete is shallower, while eliminates the prior art
Middle jack mounting base, but using centre-hole jack, there is no need to the jack of larger area peace is opened up on concrete
The slot of seat is filled, smaller is destroyed to the structural strength of bridge deck concrete.
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 (3)
1. a kind of pre-stressed carbon fiber tensioning equipment of high position tensioning, it is characterised in that：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 are cuboid with stretching end anchor block
Shape and the both ends for being individually fixed in the stretching rope；The fixing end pedestal includes fixing end horizontal plate part, is connected to fixing end
Two fixing end vertical plate portions of horizontal plate part both sides, two fixing ends for being connected to fixing end vertical plate portion top are horizontal
Mounting plate portion；The fixing end anchor block is fixed in the fixing end pedestal；The stretching end pedestal includes stretching end level board
Portion, two stretching end vertical plate portions for being connected to stretching end horizontal plate part both sides, two be connected to stretching end vertical plate portion
The stretching end on top is horizontally mounted plate portion；The stretching end anchor block is located in the stretching end pedestal and can be in the stretching end
It is slided in pedestal；The side far from the fixing end pedestal of the stretching end pedestal is provided with a jack block, it is described
Jack block is withstood on the stretching end pedestal；The stretching end anchor block connects one end of a tensioning screw rod, the tensioning spiral shell
The other end of bar is connected to jack after passing through the stretching end punched out penetrated through on the jack block；It very heavy fends off described
A cavity is offered on block, the tensioning screw rod passes through the cavity；A counter-force nut is provided in the cavity, it is described anti-
Power nut can when jack pulls tensioning screw rod in the cavity with tensioning screw rod synchronizing moving, and for being screwed
To the sidewall locations of the close stretching end anchor block side of cavity stretching rope to be prevented to shrink；Plate portion is horizontally mounted in the stretching end
And fixing end be horizontally mounted in plate portion be respectively arranged with several through-holes for by fixing bolt by the stretching end pedestal and
Fixing end pedestal is fixed on construction station.
2. the pre-stressed carbon fiber tensioning equipment of high position tensioning as described in claim 1, it is characterised in that：The jack is
Centre-hole jack, the tensioning screw rod is bolted in tensioning nut after passing through the punching duct on the axis, described
Tensioning nut is used to withstand the jack when jack extends so as to which the tensioning screw rod be driven to move.
3. the pre-stressed carbon fiber tensioning equipment of high position tensioning as described in claim 1, it is characterised in that：In the stretching end
A direct through groove is offered on horizontal plate part, there are two screw, the nuts of the screw for setting in the stretching end anchor block lower face
In the direct through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721575860.3U CN207597278U (en) | 2017-11-22 | 2017-11-22 | The pre-stressed carbon fiber tensioning equipment of high-order tensioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721575860.3U CN207597278U (en) | 2017-11-22 | 2017-11-22 | The pre-stressed carbon fiber tensioning equipment of high-order tensioning |
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| Publication Number | Publication Date |
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| CN207597278U true CN207597278U (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721575860.3U Active CN207597278U (en) | 2017-11-22 | 2017-11-22 | The pre-stressed carbon fiber tensioning equipment of high-order tensioning |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195517A (en) * | 2019-06-04 | 2019-09-03 | 扬州大学 | A kind of pre-stress fibre mesh grid tensioning equipment and its reinforced concrete beam construction method |
| CN110359380A (en) * | 2019-08-09 | 2019-10-22 | 上海悍马建筑科技有限公司 | The three-dimensional tensioning equipment of concrete foundation cushion cap prestressing force |
| CN110359376A (en) * | 2019-08-09 | 2019-10-22 | 上海悍马建筑科技有限公司 | Bridge concrete bottom pre-stressed carbon fiber tensioning equipment |
| CN112982186A (en) * | 2021-02-09 | 2021-06-18 | 沧州水利勘测规划设计院有限公司 | Dangerous bridge repairing structure and method |
-
2017
- 2017-11-22 CN CN201721575860.3U patent/CN207597278U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195517A (en) * | 2019-06-04 | 2019-09-03 | 扬州大学 | A kind of pre-stress fibre mesh grid tensioning equipment and its reinforced concrete beam construction method |
| CN110359380A (en) * | 2019-08-09 | 2019-10-22 | 上海悍马建筑科技有限公司 | The three-dimensional tensioning equipment of concrete foundation cushion cap prestressing force |
| CN110359376A (en) * | 2019-08-09 | 2019-10-22 | 上海悍马建筑科技有限公司 | Bridge concrete bottom pre-stressed carbon fiber tensioning equipment |
| CN112982186A (en) * | 2021-02-09 | 2021-06-18 | 沧州水利勘测规划设计院有限公司 | Dangerous bridge repairing structure and method |
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