CN106320191A - Pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device - Google Patents
Pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device Download PDFInfo
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- CN106320191A CN106320191A CN201610795837.9A CN201610795837A CN106320191A CN 106320191 A CN106320191 A CN 106320191A CN 201610795837 A CN201610795837 A CN 201610795837A CN 106320191 A CN106320191 A CN 106320191A
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- concrete
- high tensile
- stretching
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- tensile steel
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device which comprises an anchoring end, a lengthener, a tensioning end and a plurality of high-strength steel wires. In the use state, the high-strength steel wires are arranged on a concrete beam in parallel in the length direction of the concrete beam. One ends of the high-strength steel wires are fixedly connected through the anchoring end fixed to the surface of the concrete beam. The middle parts of the high-strength steel wires are supported by the lengthener fixed to the surface of the concrete beam. The other ends of the high-strength steel wires are fixedly connected through the tensioning end on the surface of the concrete beam. The tensioning end can adjust the prestress force of each high-strength steel wire. In addition, the device forms a unified whole through the polymer mortar coated on the surface of the concrete beam and the concrete beam. In the use process, the high-strength steel wires are large in tensioning force and small in prestress loss; by arranging the lengthener, the high-strength steel wires and corresponding threaded reinforcing steel bars are connected, the effective tensioning problem of the high-strength steel wires is solved, and construction safety is easy obtained.
Description
Technical field:
The invention belongs to engineer applied field, be specifically related to a kind of pre-stretching wire-polymer mortar additional layer and add and be fixedly mounted with
Put.
Background technology:
Existing highway bridge structural strengthening construction method is external prestressing strengthening or pre-stretching wire netting sheet polymer mortar
Sealing, external pre-stress bundle easy-to-rust, steering block size is relatively big, affects bridge structure attractive in appearance, and pre-stretching wire rope is due to steel
Silk is the existence in gap during reversing twisting so that it is moderate finite deformation occurs in the stress initial stage, it is impossible to provide effective pulling force, later stage
Loss of prestress is relatively big, and it is poor that consolidation effect compares high tensile steel wire；High tensile steel wire diameter dimension (general requirements 5mm, 6mm), real
Border stretch-draw is the most difficult.
Summary of the invention:
It is an object of the invention to provide a kind of pre-stretching wire-polymer mortar additional layer bracing means, be to tie at bridge
Anchoring, stretch-draw and attachment means are installed in structure concrete surface bar planting, penetrate high tensile steel wire, and prick screw-thread steel by extension device with essence
Connect and break with stretch-draw, use polymer mortar sealing after stretch-draw anchor, extension device device is set, connect high tensile steel wire with corresponding
Spiral, solution high tensile steel wire effective stretch-draw problem, and beneficially construction safety.
For reaching above-mentioned purpose, present invention employs techniques below scheme and realize:
Pre-stretching wire-polymer mortar additional layer bracing means, including anchored end, the first extension device, stretching end and
Some high tensile steel wires；Wherein,
During use state, some high tensile steel wires are arranged in parallel on beams of concrete on the length direction of beams of concrete,
And one end of some high tensile steel wires connects, in some high tensile steel wires by the anchored end that is fixed on beams of concrete surface is fixing
Between part supported by the first extension device being fixed on beams of concrete surface, the other end of some high tensile steel wires is by being fixed on
Stretching end on beams of concrete surface is fixing to be connected, and stretching end can regulate the prestressing force of every high tensile steel wire；Additionally, anchoring
End, the first extension device, stretching end and some high tensile steel wires are by the polymer mortar being coated on beams of concrete surface and mix
Solidifying Tu Liang forms unified entirety.
The present invention is further improved by, anchored end, the first extension device, stretching end and the table of some high tensile steel wires 7
Interfacial agents all it is painted with on face.
The present invention is further improved by, and one end of some high tensile steel wires is anchored in anchored end by pier nose.
The present invention is further improved by, and the mid portion of some high tensile steel wires is fixed on beams of concrete table by multiple
The first extension device on face supports, and multiple first extension device be arranged in parallel.
The present invention is further improved by, and stretching end is provided with and be arranged in parallel on the length direction of beams of concrete
Some spirals, the other end of every high tensile steel wire is all threaded with corresponding spiral by the second extension device.
The present invention is further improved by, and anchored end, the first extension device and stretching end are all by beams of concrete 1 surface
Implantation reinforcing bar and nut anchoring.
Relative to prior art, present invention have the advantage that:
Pre-stretch-draw implemented by pre-stretching wire when steel wire is installed, and when concrete component stress, pre-stretching wire is joined rapidly
With stress, polymer mortar additional layer, reinforcement material is significantly better than with the cooperation ability and consolidation effect that are reinforced component
The methods such as carbon fiber reinforcement, steel-bonded reinforcement, traditional steel wire rope mesh sheet-polymer mortar additional layer reinforcing, preferably play and add
Gu effect, bridge structure aesthetic problem can be solved very well simultaneously, good consolidation effect is provided simultaneously, extension device device is set,
Connect high tensile steel wire and corresponding spiral, solve high tensile steel wire effective stretch-draw problem.
By the present invention in that with known to mechanical property high-tensile steel wires substitute carbon fiber, steel plate, steel wire rope, external pre-should
The existing reinforcement material such as power, stretching force improve while, by polymer mortar additional layer so that high-tensile steel wires be reinforced
Component synergism stress.
Accompanying drawing illustrates:
Fig. 1 is the floor map of the present invention.
Fig. 2 is the present invention not structural representation of coated polymer mortar on beams of concrete surface.
Fig. 3 is present invention structural representation when using.
Fig. 4 is present invention stretch-draw high tensile steel wire schematic diagram when using.
Fig. 5 is present invention extension device structural map when using.
In figure: 1 is beams of concrete, 2 is polymer mortar, and 3 is pier nose, and 4 is anchored end, and 5 is nut, and 6 is the first spreading
Device, 7 is high tensile steel wire, and 8 is the second extension device, and 9 is stretching end, and 10 is spiral.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figures 1 to 3, the pre-stretching wire of the present invention-polymer mortar additional layer bracing means, including polymer mortar
2, anchored end the 4, first extension device 6, high tensile steel wire the 7, second extension device 8, stretching end 9 and spiral 10；Wherein, anchored end 4,
First extension device 6 and stretching end 9 are by using nut 5 to anchor in concrete surface bar planting, and high tensile steel wire 7 is by the second extension device
8 are connected with spiral 10, and anchored end 4 uses pier nose 3 to anchor high tensile steel wire 7, after stretch-draw spiral 10 to design stretching force
Use nut 5 to anchor, after body structure surface brushing interfacial agents, use polymer mortar 2 coating and beams of concrete 1 to be formed unified whole
Body.
Additionally, during actual application, described anchored end 4 size is determined by beams of concrete 1 size, material selection ordinary steel
Material；Described first extension device 6 size is determined by beams of concrete 1 size, material selection common iron；Described high tensile steel wire 7 is long
Degree is determined by beams of concrete 1 size, material selection high tensile steel wire, and stretching force is according to design value；Described stretching end 9 size is led to
Cross beams of concrete 1 size to determine, material selection common iron；Described second extension device 8 is according to high tensile steel wire 7 and spiral 10
Design size；Described spiral 10 size is according to design value.
The present invention, by installing anchoring, stretch-draw and attachment means in the bar planting of Concrete Bridge Structures surface, penetrates high-strength steel
Silk, and it is connected stretching end by extension device with essence bundle screw-thread steel, using polymer mortar sealing after stretch-draw anchor, high tensile steel wire is opened
Pulling force is big, and loss of prestress is little, arranges extension device device, connects high tensile steel wire and corresponding spiral, solves high-strength steel
Silk effectively stretch-draw problem, and beneficially construction safety.
The foregoing is only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any
Those of ordinary skill in the art in disclosed technical scope, the change that can expect without creative work or
Replace, all should contain within protection scope of the present invention.
Claims (6)
- The most pre-stretching wire-polymer mortar additional layer bracing means, it is characterised in that include anchored end (4), the first extension device (6), stretching end (9) and some high tensile steel wires (7)；Wherein,During use state, some high tensile steel wires (7) are arranged in parallel in beams of concrete on the length direction of beams of concrete (1) (1) on, and one end of some high tensile steel wires (7) is by the fixing connection of anchored end (4) being fixed on beams of concrete (1) surface, The mid portion of some high tensile steel wires (7) is supported by the first extension device (6) being fixed on beams of concrete (1) surface, some The other end of high tensile steel wire (7) is by the fixing connection of stretching end (9) being fixed on beams of concrete (1) surface, and stretching end (9) The prestressing force of every high tensile steel wire (7) can be regulated；Additionally, anchored end (4), the first extension device (6), stretching end (9) and if Dry high tensile steel wire (7) is formed unified by the polymer mortar (2) being coated on beams of concrete (1) surface with beams of concrete (1) Overall.
- Pre-stretching wire the most according to claim 1-polymer mortar additional layer bracing means, it is characterised in that anchoring Interfacial agents all it is painted with on the surface of end (4), the first extension device (6), stretching end (9) and some high tensile steel wires (7).
- Pre-stretching wire the most according to claim 1-polymer mortar additional layer bracing means, it is characterised in that some One end of high tensile steel wire (7) is anchored in anchored end (4) by pier nose (3).
- Pre-stretching wire the most according to claim 1-polymer mortar additional layer bracing means, it is characterised in that some The mid portion of high tensile steel wire (7) is supported by multiple the first extension devices (6) being fixed on beams of concrete (1) surface, and many Individual first extension device (6) be arranged in parallel.
- Pre-stretching wire the most according to claim 1-polymer mortar additional layer bracing means, it is characterised in that stretch-draw It is provided with the some spirals (10) be arrangeding in parallel on the length direction of beams of concrete (1), every high-strength steel on end (9) The other end of silk (7) is all threaded with corresponding spiral (10) by the second extension device (8).
- Pre-stretching wire the most according to claim 1-polymer mortar additional layer bracing means, it is characterised in that anchoring End (4), the first extension device (6) and stretching end (9) are all anchored by the implantation reinforcing bar on beams of concrete (1) surface and nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795837.9A CN106320191A (en) | 2016-08-31 | 2016-08-31 | Pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795837.9A CN106320191A (en) | 2016-08-31 | 2016-08-31 | Pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device |
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| Publication Number | Publication Date |
|---|---|
| CN106320191A true CN106320191A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610795837.9A Pending CN106320191A (en) | 2016-08-31 | 2016-08-31 | Pre-tensioning steel wire and polymer mortar externally-added layer reinforcing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165059A (en) * | 2017-04-07 | 2017-09-15 | 华侨大学 | A kind of construction method of the anti-bend reinforced device of bridge prestress high-strength steel cord |
| CN110295551A (en) * | 2019-08-09 | 2019-10-01 | 中国建筑第四工程局有限公司 | Continuous rigid frame bridge external prestressing strengthening structure |
| CN110565546A (en) * | 2019-09-09 | 2019-12-13 | 长沙理工大学 | Detachable device for assembling prestress for bridge structure and reinforcing method |
| CN110593141A (en) * | 2019-09-21 | 2019-12-20 | 北京凯新浩达工程技术有限公司 | Bridge prestress reinforcing structure and reinforcing method |
| CN113062233A (en) * | 2021-02-24 | 2021-07-02 | 山西省交通科技研发有限公司 | Pre-tensioning method prestressed steel plate-concrete reinforcing method for box girder |
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| CN203049892U (en) * | 2012-12-05 | 2013-07-10 | 上海英谷桥梁科技有限公司 | Structure for steel strand polymer mortar reinforced concrete structural member |
| JP2013194457A (en) * | 2012-03-21 | 2013-09-30 | Hanshin Expressway Engineering Co Ltd | Bridge inspection device |
| CN204875563U (en) * | 2015-09-02 | 2015-12-16 | 东北林业大学 | Bridge reinforcing apparatus based on polyurethane cement and prestressed wire rope |
| CN105625197A (en) * | 2016-01-04 | 2016-06-01 | 武汉理工大学 | Concrete beam bending reinforcing method based on steel plate-prestressed carbon fiber plate |
| CN205636523U (en) * | 2016-05-10 | 2016-10-12 | 西安公路研究院 | Pre -tension steel wire - polymer mortar additional layer reinforcing apparatus |
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| CN105625197A (en) * | 2016-01-04 | 2016-06-01 | 武汉理工大学 | Concrete beam bending reinforcing method based on steel plate-prestressed carbon fiber plate |
| CN205636523U (en) * | 2016-05-10 | 2016-10-12 | 西安公路研究院 | Pre -tension steel wire - polymer mortar additional layer reinforcing apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165059A (en) * | 2017-04-07 | 2017-09-15 | 华侨大学 | A kind of construction method of the anti-bend reinforced device of bridge prestress high-strength steel cord |
| CN107165059B (en) * | 2017-04-07 | 2023-03-03 | 华侨大学 | Construction method of bridge prestress high-strength steel wire rope bending-resistant reinforcing device |
| CN110295551A (en) * | 2019-08-09 | 2019-10-01 | 中国建筑第四工程局有限公司 | Continuous rigid frame bridge external prestressing strengthening structure |
| CN110565546A (en) * | 2019-09-09 | 2019-12-13 | 长沙理工大学 | Detachable device for assembling prestress for bridge structure and reinforcing method |
| CN110565546B (en) * | 2019-09-09 | 2024-04-16 | 长沙理工大学 | Detachable device for assembling prestress for bridge structure and reinforcing method |
| CN110593141A (en) * | 2019-09-21 | 2019-12-20 | 北京凯新浩达工程技术有限公司 | Bridge prestress reinforcing structure and reinforcing method |
| CN113062233A (en) * | 2021-02-24 | 2021-07-02 | 山西省交通科技研发有限公司 | Pre-tensioning method prestressed steel plate-concrete reinforcing method for box girder |
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Application publication date: 20170111 |
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