CN107724258A - A kind of pre-stressed carbon fiber tensioning equipment - Google Patents
A kind of pre-stressed carbon fiber tensioning equipment Download PDFInfo
- Publication number
- CN107724258A CN107724258A CN201711174409.5A CN201711174409A CN107724258A CN 107724258 A CN107724258 A CN 107724258A CN 201711174409 A CN201711174409 A CN 201711174409A CN 107724258 A CN107724258 A CN 107724258A
- Authority
- CN
- China
- Prior art keywords
- stretching
- anchor block
- tensioning
- carbon fiber
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 32
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000010276 construction Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 6
- 239000004593 Epoxy Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108010074506 Transfer Factor Proteins 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/266—Concrete reinforced with fibres other than steel or glass
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of pre-stressed carbon fiber tensioning equipment, 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 cylinder and is individually fixed in the both ends of the stretching rope with stretching end anchor block；The stretching end anchor block connects one end of a tensioning screw rod, and the other end of the tensioning screw rod is through being connected to jack after the stretching end punched out penetrated on the stretching end pedestal.Using above-mentioned technical proposal, pre-stressed carbon fiber tensioning equipment of the invention, the area of the groove opened up on concrete is smaller, and depth is also shallower, and the structural strength destruction to bridge deck concrete is smaller, to keep the overall structural strength of bridge as far as possible.
Description
Technical field
The present invention relates to a kind of pre-stressed carbon fiber tensioning equipment, belongs to bridge concrete pre-stress stretching device technology neck
Domain.
Background technology
At present, bridge uses prestressed reinforced concrete structure more, applies in bridge concrete structural fortification use
Prestressing force drag-line be usually that width is 100mm, 50mm or 20mm, rectangle thin plate that thickness is 1mm~3mm (bar or
Band), it, which applies the conventional use of stretch-draw prestressing force reinforcement means, 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 security 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
Play, 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 costly, remote high
In carbon fiber main material, because the shortcomings that its cost performance difference, has had a strong impact on 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, so needs to open up out in the concrete lower surface of bridge floor for installing fixing end pedestal, tensioning
The groove of end group seat and jack, fluting is more, and due to being further opened with sliding in square fixing end pedestal and stretching end pedestal
Groove, the anchor block that can be slided in chute is provided with chute, stretching rope is fixedly mounted on anchor block, therefore causes pedestal area
It is larger, and then the groove area opened up is also larger, is unfavorable for the structural strength for keeping bridge overall, and pacify in practice of construction
Dress required precision is higher, and the error in mounting position of fixing end pedestal and stretching end pedestal easily causes the side of the stretching force of jack
To inconsistent with the bearing of trend of carbon fiber sheet, cause carbon fiber sheet to damage, influence structural strength.
The content of the invention
Therefore, it is an object of the invention to provide a kind of area and depth that can reduce in concrete structure layer surface fluting
Degree, to keep the pre-stressed carbon fiber tensioning equipment of the overall structural strength of bridge as far as possible.
To achieve these goals, a kind of pre-stressed carbon fiber tensioning equipment of the invention, including fixing end pedestal, fixation
Anchor block, the stretching rope of carbon fiber, stretching end anchor block and stretching end pedestal are held, the fixing end anchor block is circle with stretching end anchor block
Cylindricality and the both ends for being individually fixed in the stretching rope；The fixing end anchor block connects one end of a standing screw, the fixation
The other end of screw rod is through the fixing nut that is spirally connected after the fixing end punched out for penetrating the fixing end pedestal；The stretching end anchor
Block connects one end of a tensioning screw rod, and the other end of the tensioning screw rod is worn through the stretching end penetrated on the stretching end pedestal
Jack is connected to after portalling；A cavity is offered on the stretching end pedestal, the tensioning screw rod passes through the cavity；
A counter-force nut is provided with the cavity, the counter-force nut can be when jack pulls tensioning screw rod in the cavity
With tensioning screw rod synchronizing moving, and for be threaded to cavity close stretching end anchor block side sidewall locations with prevent open
Drag-line shrinks；Be respectively arranged with the stretching end pedestal and fixing end pedestal some through holes be used for by gim peg by institute
State stretching end pedestal and fixing end pedestal is fixed on construction station.
The cavity is opened on a side of the stretching end pedestal, and is located at the middle part of the side, described
Pull end punched out is set parallel to the side.
Some through holes opened up on stretching end pedestal are distributed on the both sides of the tensioning screw rod；Opened on fixing end pedestal
If some through holes be distributed on the both sides of the standing screw.
The through hole is elongated 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 on the fixing end anchor block in the fixing end holding chamber of the coaxial line opened up simultaneously
It is fixed clamped by two fixing end intermediate plates.
The end of the stretching rope is extend on the stretching end anchor block in the stretching end holding chamber of the coaxial line opened up 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, pre-stressed carbon fiber tensioning equipment of the invention, due to fixing end pedestal and cylinder
Fixing end anchor block separation, stretching end pedestal with cylinder stretching end anchor block separate, therefore need not fixing end pedestal with
The assembly space of fixing end anchor block and stretching end anchor block is stayed on stretching end pedestal, therefore compared to traditional tensioning equipment, it is fixed
The area of end group seat and stretching end pedestal is much smaller, therefore the area of the groove opened up on concrete is also smaller, depth also compared with
Shallow, the structural strength destruction to bridge deck concrete is smaller；Simultaneous tension screw rod and standing screw respectively fixing end punched out with
Stretching end punched out intermediate gap coordinates, and angle can be acted on self adjustment by stretching force during tensioning, when there is installation accuracy error
Fixing end anchor block, stretching end anchor block, fixing end sleeve, stretching end sleeve coaxial line can still be ensured, so as to as far as possible
Avoid that carbon fiber sheet is caused to damage in stretching process.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the sectional view of the present invention.
Embodiment
Below by way of the drawings and specific embodiments, the present invention is described in further detail.
As illustrated, 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 cylinder and is individually fixed in the both ends of the stretching rope 3；The fixing end anchor block 12 connects a standing screw 13
One end, the other end of the standing screw 13 is through being spirally connected after the fixing end punched out 110 for penetrating the fixing end pedestal 11
One fixing nut 140；The stretching end anchor block 22 connects one end of a tensioning screw rod 23, and the other end of the tensioning screw rod 23 is worn
Jack 4 is connected to after crossing the stretching end punched out 210 penetrated on the stretching end pedestal 21；On the stretching end pedestal 21
A cavity 211 is offered, the tensioning screw rod 23 passes through the cavity 211；A counter-force nut is provided with the cavity 211
240, the counter-force nut 240 can be same with tensioning screw rod 23 in the cavity 211 when jack 4 pulls tensioning screw rod 23
Moved further, and it is used for the close tensioning for being threaded to cavity 211 in 4 release travel of jack and after tensioning operation
The sidewall locations of end anchor block 22 side are to prevent stretching rope 3 from shrinking；On the stretching end pedestal 21 and fixing end pedestal 11
Be respectively arranged with some through holes 100 be used for by gim peg (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 gim peg is perpendicularly fixed at into concrete during construction
Surface, the through hole 100 of stretching end pedestal 21 or fixing end pedestal 11 is then passed through into gim peg, then again by gim peg nut
200 are tightened against on gim peg.
The cavity 211 is opened on a side 21a of the stretching end pedestal 21, and positioned at the side 21a's
Middle part, the stretching end punched out 210 are set parallel to the side 21a.
Some 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
Some through holes 100 opened up on pedestal 11 are distributed on the both sides of the standing screw 13.
The through hole 100 is elongated hole, for error transfer factor.
The fixing end anchor block 12 is connected 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 on the fixing end anchor block 12 the fixing end holding chamber of the coaxial line opened up
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 the axis of jack 4
Tensioning nut 42 is bolted in behind road 41, the tensioning nut 42 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, pre-stressed carbon fiber tensioning equipment of the invention, due to fixing end pedestal and cylinder
Fixing end anchor block separation, stretching end pedestal with cylinder stretching end anchor block separate, therefore need not fixing end pedestal with
The assembly space of fixing end anchor block and stretching end anchor block is stayed on stretching end pedestal, therefore compared to traditional tensioning equipment, it is fixed
The area of end group seat and stretching end pedestal is much smaller, therefore the area of the groove opened up on concrete is also smaller, depth also compared with
Shallow, the structural strength destruction to bridge deck concrete is smaller；Simultaneous tension screw rod and standing screw respectively fixing end punched out with
Stretching end punched out intermediate gap coordinates, and angle can be acted on self adjustment by stretching force during tensioning, when there is installation accuracy error
Fixing end anchor block, stretching end anchor block, fixing end sleeve, stretching end sleeve coaxial line can still be ensured, so as to as far as possible
Avoid that carbon fiber sheet is caused to damage in stretching process.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.For
For those of ordinary skill in the art, other various forms of changes 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 change or change thus extended out
Among moving still in the protection domain of the invention.
Claims (9)
- A kind of 1. 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 fixed respectively In the both ends of the stretching rope；The fixing end anchor block connects one end of a standing screw, and the other end of the standing screw is worn The fixing nut that is spirally connected is crossed after the fixing end punched out for penetrating the fixing end pedestal；The stretching end anchor block connects a tensioning spiral shell One end of bar, the other end of the tensioning screw rod is through being connected to thousand after the stretching end punched out penetrated on the stretching end pedestal Jin top；A cavity is offered on the stretching end pedestal, the tensioning screw rod passes through the cavity；Set in the cavity There is a counter-force nut, the counter-force nut can be synchronous with tensioning screw rod in the cavity when jack pulls tensioning screw rod It is mobile, and for be threaded to cavity close stretching end anchor block side sidewall locations to prevent stretching rope from shrinking；Institute State be respectively arranged with stretching end pedestal and fixing end pedestal some through holes be used for by gim peg by the stretching end pedestal And fixing end pedestal is fixed on construction station.
- 2. pre-stressed carbon fiber tensioning equipment as claimed in claim 1, it is characterised in that：The cavity is opened in the tensioning On one side of end group seat, and set positioned at the middle part of the side, the stretching end punched out parallel to the side.
- 3. pre-stressed carbon fiber tensioning equipment as claimed in claim 1, it is characterised in that：If opened up on stretching end pedestal Dry through hole is distributed on the both sides of the tensioning screw rod；Some through holes opened up on fixing end pedestal are distributed on the standing screw Both sides.
- 4. pre-stressed carbon fiber tensioning equipment as claimed in claim 1, it is characterised in that：The through hole is elongated hole.
- 5. the pre-stressed carbon fiber tensioning equipment as described in claim any one of 1-4, it is characterised in that：The fixing end anchor block The fixing end anchor block is bolted in by a fixing end sleeve connection, one end of the fixing end sleeve with the standing screw, The other end is bolted in the standing screw.
- 6. the pre-stressed carbon fiber tensioning equipment as described in claim any one of 1-4, it is characterised in that：The stretching end anchor block The stretching end anchor block is bolted in by a stretching end sleeve connection, one end of the stretching end sleeve with the tensioning screw rod, The other end is bolted in the tensioning screw rod.
- 7. the pre-stressed carbon fiber tensioning equipment as described in claim any one of 1-4, it is characterised in that：The end of the stretching rope Portion extend on the fixing end anchor block in the holding chamber of the coaxial line opened up and fixed clamped by two fixing end intermediate plates.
- 8. the pre-stressed carbon fiber tensioning equipment as described in claim any one of 1-4, it is characterised in that：The end of the stretching rope Portion extend on the stretching end anchor block in the holding chamber of the coaxial line opened up and fixed clamped by two stretching end intermediate plates.
- 9. the pre-stressed carbon fiber tensioning equipment as described in claim any one of 1-4, it is characterised in that：The jack is to wear Core type jack, the tensioning screw rod is through being bolted in tensioning nut behind the punching duct on the axis, described Nut is drawn to be used to withstand the jack when jack extends so as to drive the tensioning screw rod to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174409.5A CN107724258B (en) | 2017-11-22 | 2017-11-22 | Prestressing force carbon fiber stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174409.5A CN107724258B (en) | 2017-11-22 | 2017-11-22 | Prestressing force carbon fiber stretching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107724258A true CN107724258A (en) | 2018-02-23 |
| CN107724258B CN107724258B (en) | 2024-04-19 |
Family
ID=61218062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174409.5A Active CN107724258B (en) | 2017-11-22 | 2017-11-22 | Prestressing force carbon fiber stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107724258B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425325A (en) * | 2018-04-04 | 2018-08-21 | 刘慧锦 | A kind of highway bridge prestress strengthening method |
| CN108908694A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
| CN109026059A (en) * | 2018-07-25 | 2018-12-18 | 同济大学 | A kind of fixed end, pretightning force applying method and ring plate model |
| CN111188286A (en) * | 2020-01-13 | 2020-05-22 | 上海悍马建筑科技有限公司 | Method for disassembling bonded prestressed carbon fiber plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060126200A (en) * | 2005-06-03 | 2006-12-07 | 주식회사 엠텍 | Fiber composite panel with tension head and concrete twofold strengthening method by post-tensioning using it |
| CN106049300A (en) * | 2016-08-03 | 2016-10-26 | 深圳市威士邦建筑新材料科技有限公司 | Pull-type prestress carbon fiber bar tension device and construction method |
| CN107299725A (en) * | 2017-07-28 | 2017-10-27 | 东南大学 | A kind of prefabricated PC carbon fiber board tensioning rollering fastening system and its anchoring process |
| CN207597277U (en) * | 2017-11-22 | 2018-07-10 | 上海悍马建筑科技有限公司 | A kind of pre-stressed carbon fiber tensioning equipment |
-
2017
- 2017-11-22 CN CN201711174409.5A patent/CN107724258B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060126200A (en) * | 2005-06-03 | 2006-12-07 | 주식회사 엠텍 | Fiber composite panel with tension head and concrete twofold strengthening method by post-tensioning using it |
| CN106049300A (en) * | 2016-08-03 | 2016-10-26 | 深圳市威士邦建筑新材料科技有限公司 | Pull-type prestress carbon fiber bar tension device and construction method |
| CN107299725A (en) * | 2017-07-28 | 2017-10-27 | 东南大学 | A kind of prefabricated PC carbon fiber board tensioning rollering fastening system and its anchoring process |
| CN207597277U (en) * | 2017-11-22 | 2018-07-10 | 上海悍马建筑科技有限公司 | A kind of pre-stressed carbon fiber tensioning equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425325A (en) * | 2018-04-04 | 2018-08-21 | 刘慧锦 | A kind of highway bridge prestress strengthening method |
| CN108908694A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
| CN108908694B (en) * | 2018-06-29 | 2023-09-01 | 周兆弟 | Steel bar prestress tensioning machine |
| CN109026059A (en) * | 2018-07-25 | 2018-12-18 | 同济大学 | A kind of fixed end, pretightning force applying method and ring plate model |
| CN111188286A (en) * | 2020-01-13 | 2020-05-22 | 上海悍马建筑科技有限公司 | Method for disassembling bonded prestressed carbon fiber plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107724258B (en) | 2024-04-19 |
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