CN106013835A - Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing - Google Patents
Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing Download PDFInfo
- Publication number
- CN106013835A CN106013835A CN201610428813.XA CN201610428813A CN106013835A CN 106013835 A CN106013835 A CN 106013835A CN 201610428813 A CN201610428813 A CN 201610428813A CN 106013835 A CN106013835 A CN 106013835A
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- Prior art keywords
- anchorage
- storey
- translation
- anchor
- stretching
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Abstract
The invention discloses a multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing. The device comprises a fixing end anchorage device, a tensioning end anchoring device and a combined tensioning end anchorage device. The combined tensioning end anchorage device can be split into a wedge-shaped anchoring end and an anchorage device top end. The two ends of multilayer carbon fiber cloth are clamped through the fixing end anchorage device and the combined tensioning end anchorage device, tension is applied to the tensioning end anchoring device through a jack, and a guide rod connected with the tensioning end anchoring device is used for carrying out prestress tensioning and anchoring on the multilayer carbon fiber cloth. The characteristics that carbon fibers are light and high in strength can be fully exerted, the strength utilization rate of the carbon fibers is obviously increased, stress and flexural deformation of the concrete structure are effectively reduced, beam cracking is delayed, the width of cracks is reduced, and the bearing capacity of the structure is further improved.
Description
Technical field
The invention belongs to prestressed reinforcement concrete correlative technology field, it is proposed that the multi-storey up-down and translation stretching and anchoring device of a kind of concrete structure reinforcement and method, it is adaptable to the clamping of the infrastructure project structure such as building, water conservancy and anchoring.
Background technology
Pre-stressed carbon fiber band anchorage technology is as a kind of novel concrete strengthening technology, there is good development prospect, it can give full play to carbon fiber lightweight, high-strength feature, the intensity of xoncrete structure is greatly improved, and efficiently reduce its stress and deflection deformation, delay beam crack velocity, reduce crack width, improve the bearing capacity of structure further, improve its durability.Currently, both at home and abroad the prestressed carbon cloth tensioned anchorage system of exploitation is also in preliminary conceptual phase, existing stretching and anchoring device generally heavy, need the biggest construction operation space, construction technology not clearly, long-term behaviour is poor, construction is inconvenient and architectural effect such as is difficult to ensure that at the shortcoming.Therefore, the problem that a kind of novel carbon fiber band stretching and anchoring device solves presently, there are it is badly in need of.
Summary of the invention
It is an object of the invention to for deficiency of the prior art, the multi-storey up-down and translation stretching and anchoring device of a kind of concrete structure reinforcement is provided, the convenience operated during to improve structural strengthening and the reliability of anchoring, to improve anchoring effect further so that it is is satisfied with the demand of through engineering approaches application.
For achieving the above object, the invention discloses following technical scheme:
A kind of multi-storey up-down and translation stretching and anchoring device of concrete structure reinforcement, including fixing end anchorage, multi-storey up-down and translation, stretching end anchor and combination type stretching end anchorage:
Described fixing end anchorage is provided with through hole, and multi-storey up-down and translation head end is wound around between through hole and fixing end anchorage two ends thus is fixed on fixing end anchorage；
Described stretching end anchor is connected with jack with combination type stretching end anchorage respectively by guide rod, and prestressing force is acted on combination type stretching end anchorage by jack by guide rod, thus multi-storey up-down and translation is carried out stretch-draw anchor；
Described combination type stretching end anchorage includes wedge shape anchored end and anchorage top, described wedge shape anchored end has wedge shape curved surface, the described anchorage top tapered shape of endoporus, the multi-storey up-down and translation being wrapped in wedge shape anchored end is close to wedge shape curved surface, stretched out by anchorage top endoporus again, so that multi-storey up-down and translation direction constrains in horizontal direction.
As preferably, described fixing end anchorage two ends are provided with circular arc, and multi-storey up-down and translation head end is wound around between through hole and circular arc thus is fixed on fixing end anchorage.
As preferably, described wedge shape anchored end and anchorage top are provided with positioning screw hole, carry out being positioned to assemble by bolt.
As preferably, the number of plies of described multi-storey up-down and translation is for drawing 4 layers, 6 layers, 8 layers, 10 layers or 2n, and wherein, n is the even carbon fiber cloth not less than 2.
The invention also discloses a kind of concrete structure reinforcement multi-storey up-down and translation tension anchoring method, use anchor as above, comprise the steps:
The blessing of S1 multi-storey up-down and translation: multi-storey up-down and translation first passes around the through hole on fixing end anchorage, then by the endoporus on anchorage top, further around the wedge shape curved surface crossing wedge shape anchored end, finally pass back through anchorage top, return on fixing end anchorage, it is clamped with fixing by bolt thereon, so that multi-storey up-down and translation accommodates on anchor；
The installation of S2 anchor: before anchoring, first by fixing end anchorage, stretching end anchor, combination type stretching end anchorage, the mode being bolted respectively or welding or anchor into, be fixedly connected on the engineering structure surface being enhanced or reinforcing；
S3 prestressing force tension: first will add the combination type stretching end anchorage holding multi-storey up-down and translation, by two guide rods and stretching end anchor, then is connected counter-force block with jack by two guide rods, constitutes reaction frame；Then jack is placed between stretching end anchor and counter-force block；Drive jack pushing reaction block the most again；Counter-force block drives guide rod to move together, and drives blessing to move together with anchoring multi-storey up-down and translation combination type stretching end anchorage, it is achieved that the prestressed stretch-draw of multi-storey up-down and translation.
As preferably, in described step S2, fixing end anchorage and combination type stretching end anchorage are being enhanced or the particular location in reinforcing engineering structure and period spacing, depending on the specific requirement by the engineering structure strengthened or reinforce.
The multi-storey up-down and translation stretching and anchoring device of a kind of concrete structure reinforcement disclosed by the invention and method, have the advantages that
1, the simple in construction of anchorage, the formation pull-type retaining structure of anchor is susceptible to the impact of construction environment and causes a deviation, and strong adaptability, uniform force, structural stability is preferable.
2, operation step is played simply, and combination type stretching end anchorage is prone to the fixing of carbon fiber tape, it is possible to effective reduction is such as scratched by extraneous construction, impact etc. is brought and affected.
3, anchoring effect is reliable, and the anchor using the present invention to propose is applicable to the anchoring of multi-storey up-down and translation, not only increases anchoring effect, and can easily be accommodated stretching force.
The composite can be widely applied to built or strengthen in heavy construction structures such as the bridge built or building constructions or reinforce, it is particularly well-suited to large-span concrete beam, plate etc. are carried out external prestressing strengthening, improve carbon fiber strength utilization rate, significantly improve and be enhanced or the bearing capacity of reinforcing engineering structure and service life.
Accompanying drawing explanation
Fig. 1 is the total schematic diagram of prestressed stretch-draw anchor
Fig. 2 is the structural representation of fixing end anchorage
Fig. 3 is the structural representation of stretching end anchor
Fig. 4 (a) carves the structural representation of type anchored end, and Fig. 4 (b) carves type anchored end planing surface figure
The structural representation on Fig. 5 (a) anchorage top, Fig. 5 (b) anchorage top planing surface figure
Wherein:
1. fixing end anchorage, 101. through holes, 102. circular arcs, 2. stretching end anchor, 3. combination type stretching end anchorage, 301. wedge shape anchored end, 302. anchorage tops, 3011. wedge shape curved surfaces, 3021. endoporus, 4. guide rod, 5. jack, 6. counter-force block.
Detailed description of the invention
Below in conjunction with embodiment and referring to the drawings the invention will be further described.
Refer to Fig. 1-Fig. 5 (b).
A kind of multi-storey up-down and translation stretching and anchoring device of concrete structure reinforcement, including fixing end anchorage 1, multi-storey up-down and translation, stretching end anchor 2 and combination type stretching end anchorage 3:
Described fixing end anchorage 1 is provided with through hole 101, and multi-storey up-down and translation head end is wound around between through hole 101 and fixing end anchorage 1 two ends thus is fixed on fixing end anchorage 1；
Described stretching end anchor 2 is connected with jack 5 with combination type stretching end anchorage 3 respectively by guide rod 4, and prestressing force is acted on combination type stretching end anchorage 3 by jack 5 by guide rod 4, thus multi-storey up-down and translation is carried out stretch-draw anchor；
Described combination type stretching end anchorage 3 includes wedge shape anchored end 301 and anchorage top 302, described wedge shape anchored end 301 has wedge shape curved surface 3011, the described anchorage top 302 tapered shape of endoporus 3021, the multi-storey up-down and translation being wrapped in wedge shape anchored end 301 is close to wedge shape curved surface 3011, stretched out by anchorage top endoporus 3021 again, so that multi-storey up-down and translation direction constrains in horizontal direction.
As specific embodiment, described fixing end anchor 1 has two ends and is provided with circular arc 102, and multi-storey up-down and translation head end is wound around between through hole and circular arc thus is fixed on fixing end anchorage 1.
As specific embodiment, described wedge shape anchored end 301 is provided with positioning screw hole with anchorage top 302, carries out being positioned to assemble by bolt.
As specific embodiment, the number of plies of described multi-storey up-down and translation is for drawing 4 layers, 6 layers, 8 layers, 10 layers or 2n, and wherein, n is the even carbon fiber cloth not less than 2.
The invention also discloses a kind of concrete structure reinforcement multi-storey up-down and translation tension anchoring method, use anchor as above, comprise the steps:
The blessing of S1 multi-storey up-down and translation: multi-storey up-down and translation first passes around the through hole 101 on fixing end anchorage 1, then by the endoporus 3021 on anchorage top 302, further around the wedge shape curved surface 3011 crossing wedge shape anchored end 301, finally pass back through anchorage top 302, return on fixing end anchorage 1, it is clamped with fixing by bolt thereon, so that multi-storey up-down and translation accommodates on anchor；
The installation of S2 anchor: before anchoring, first by fixing end anchorage 1, stretching end anchor 2, combination type stretching end anchorage 3, the mode being bolted respectively or welding or anchor into, be fixedly connected on the engineering structure surface being enhanced or reinforcing；
S3 prestressing force tension: first will add the combination type stretching end anchorage 3 holding multi-storey up-down and translation, by two guide rods 4 and stretching end anchor 2, then is connected counter-force block 6 with jack 5 by two guide rods 4, constitutes reaction frame；Then jack 5 is placed between stretching end anchor 2 and counter-force block 6；Drive jack 5 pushing reaction block 6 the most again；Counter-force block 6 drives guide rod 4 to move together, and drives blessing to move together with anchoring multi-storey up-down and translation combination type stretching end anchorage 3, it is achieved that the prestressed stretch-draw of multi-storey up-down and translation.
As specific embodiment, in described step S1, fixing end anchorage 1 and combination type stretching end anchorage 3 are being enhanced or the particular location in reinforcing engineering structure and period spacing, depending on the specific requirement by the engineering structure strengthened or reinforce.
The above is only the preferred embodiment of the present invention, is not intended to limit；Should be understood that, although the present invention being described in detail with reference to the various embodiments described above, it will be understood by those within the art that, the technical scheme described in the various embodiments described above still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments and replacement, do not make the essence of corresponding technical scheme depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a multi-storey up-down and translation stretching and anchoring device for concrete structure reinforcement, its feature
It is, opens including fixing end anchorage, multi-storey up-down and translation, stretching end anchor and combination type
Pull end anchorage:
Described fixing end anchorage is provided with through hole, and multi-storey up-down and translation head end is at through hole and fixing end anchor
It is wound around between tool two ends thus is fixed on fixing end anchorage；
Described stretching end anchor by guide rod respectively with combination type stretching end anchorage with very heavy
Top is connected, and prestressing force is acted on combination type stretching end anchorage by jack by guide rod, thus
Multi-storey up-down and translation is carried out stretch-draw anchor；
Described combination type stretching end anchorage includes wedge shape anchored end and anchorage top, described wedge shape
Anchored end has wedge shape curved surface, the described anchorage top tapered shape of endoporus, is wrapped in wedge shape anchor
The multi-storey up-down and translation of fixed end is close to wedge shape curved surface, then is stretched out by anchorage top endoporus, so that
Multi-storey up-down and translation direction constrains in horizontal direction.
The multilamellar carbon fiber of a kind of concrete structure reinforcement the most according to claim 1
Cloth stretching and anchoring device, it is characterised in that described fixing end anchorage two ends are provided with circular arc, multilamellar
Carbon cloth head end is wound around between through hole and circular arc thus is fixed on fixing end anchorage.
The multilamellar carbon fiber of a kind of concrete structure reinforcement the most according to claim 1
Cloth stretching and anchoring device, it is characterised in that described wedge shape anchored end and anchorage top are provided with location
Screw, carries out being positioned to assemble by bolt.
The multilamellar carbon fiber of a kind of concrete structure reinforcement the most according to claim 1
Cloth stretching and anchoring device, it is characterised in that the number of plies of described multi-storey up-down and translation for draw 4 layers,
6 layers, 8 layers, 10 layers or 2n, wherein, n is the even carbon fiber cloth not less than 2.
5. the anchoring of the multi-storey up-down and translation stretching and anchoring device of a concrete structure reinforcement
Method, it is characterised in that use the anchor as described in claim 1-4, including as follows
Step:
The blessing of S1 multi-storey up-down and translation: multi-storey up-down and translation first passes around on fixing end anchorage
Through hole, then by the endoporus on anchorage top, further around crossing the wedge shape curved surface of wedge shape anchored end,
Finally pass back through anchorage top, return to, on fixing end anchorage, be clamped by bolt thereon
With fixing, so that multi-storey up-down and translation accommodates on anchor；
The installation of S2 anchor: before anchoring, first by fixing end anchorage, stretching end anchor
Be fixedly mounted with put, combination type stretching end anchorage, be bolted respectively or weld or anchor into
Mode, is fixedly connected on the engineering structure surface being enhanced or reinforcing；
S3 prestressing force tension: first will add the combination type stretching end anchor holding multi-storey up-down and translation
Tool, by two guide rods and stretching end anchor, then by counter-force block by two guide rods and thousand
Jin top is connected, and constitutes reaction frame；Then jack is placed on stretching end anchor and counter-force
Between block；Drive jack pushing reaction block the most again；Counter-force block drives guide rod to move together,
And drive blessing to move together with anchoring multi-storey up-down and translation combination type stretching end anchorage, it is achieved that
The prestressed stretch-draw of multi-storey up-down and translation.
The multilamellar carbon fiber of a kind of concrete structure reinforcement the most according to claim 5
The anchoring process of cloth stretching and anchoring device, it is characterised in that in described step S1, fixing end
Anchorage and combination type stretching end anchorage be enhanced or particular location in reinforcing engineering structure and
Period spacing, depending on the specific requirement by the engineering structure strengthened or reinforce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428813.XA CN106013835A (en) | 2016-06-16 | 2016-06-16 | Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428813.XA CN106013835A (en) | 2016-06-16 | 2016-06-16 | Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing |
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| CN106013835A true CN106013835A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610428813.XA Pending CN106013835A (en) | 2016-06-16 | 2016-06-16 | Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382011A (en) * | 2016-11-09 | 2017-02-08 | 陕西通宇新材料有限公司 | Tensioning-anchoring system and method for prestressed carbon fiber plate of concrete structure |
| CN106522574A (en) * | 2016-11-23 | 2017-03-22 | 深圳市威士邦建筑新材料科技有限公司 | Decomposition-type prestressed carbon fiber tensioning device and construction method thereof |
| CN106836021A (en) * | 2017-01-06 | 2017-06-13 | 东南大学 | A kind of pre-stress FRP sheet material Shear Strengthening beams of concrete experimental provision |
| CN108708301A (en) * | 2018-06-28 | 2018-10-26 | 谢志坚 | A kind of bridge hinge seam bracing means based on bridge security performance |
| CN109826112A (en) * | 2019-02-27 | 2019-05-31 | 徐慧云 | Multi-storey up-down and translation prestressed anchor |
| CN110029593A (en) * | 2019-04-12 | 2019-07-19 | 桂林理工大学 | A kind of tensioning of the prestressed fiber cloth reinforced beam of multilayer and anchor |
| CN110029594A (en) * | 2019-04-12 | 2019-07-19 | 桂林理工大学 | A kind of construction method using multilayer prestressed fiber cloth reinforced concrete column |
| CN111005587A (en) * | 2019-12-16 | 2020-04-14 | 沈阳大学 | Self-locking prestress CFRP strip tensioning anchoring system |
| CN111058650A (en) * | 2019-12-26 | 2020-04-24 | 中国建筑第八工程局有限公司 | Carbon fiber reinforced structure tensioned through top support and construction method thereof |
| CN111101727A (en) * | 2019-12-26 | 2020-05-05 | 中国建筑第八工程局有限公司 | Carbon fiber reinforced structure for beam column and construction method thereof |
| CN114182981A (en) * | 2022-01-21 | 2022-03-15 | 江苏易鼎电力科技有限公司 | Novel carbon-fibre composite section bar anchor |
| CN117449608A (en) * | 2023-12-26 | 2024-01-26 | 福建理工大学 | A self-leveling carbon fiber board prestressing force tensioning equipment for cambered surface structure |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382011B (en) * | 2016-11-09 | 2018-07-06 | 陕西交科新材料有限公司 | Concrete structure pre-stressed carbon fiber plate tensioning rollering fastening system and method |
| CN106382011A (en) * | 2016-11-09 | 2017-02-08 | 陕西通宇新材料有限公司 | Tensioning-anchoring system and method for prestressed carbon fiber plate of concrete structure |
| CN106522574A (en) * | 2016-11-23 | 2017-03-22 | 深圳市威士邦建筑新材料科技有限公司 | Decomposition-type prestressed carbon fiber tensioning device and construction method thereof |
| CN106522574B (en) * | 2016-11-23 | 2018-11-30 | 深圳市威士邦建筑新材料科技有限公司 | A kind of breakdown pre-stressed carbon fiber tensioning equipment and its construction method |
| CN106836021A (en) * | 2017-01-06 | 2017-06-13 | 东南大学 | A kind of pre-stress FRP sheet material Shear Strengthening beams of concrete experimental provision |
| CN106836021B (en) * | 2017-01-06 | 2018-07-24 | 江苏纬信工程咨询有限公司 | A kind of pre-stress FRP sheet material Shear Strengthening beams of concrete experimental provision |
| CN108708301A (en) * | 2018-06-28 | 2018-10-26 | 谢志坚 | A kind of bridge hinge seam bracing means based on bridge security performance |
| CN109826112B (en) * | 2019-02-27 | 2023-12-26 | 南京曼卡特科技有限公司 | Multilayer carbon fiber cloth prestressing force ground tackle |
| CN109826112A (en) * | 2019-02-27 | 2019-05-31 | 徐慧云 | Multi-storey up-down and translation prestressed anchor |
| CN110029593A (en) * | 2019-04-12 | 2019-07-19 | 桂林理工大学 | A kind of tensioning of the prestressed fiber cloth reinforced beam of multilayer and anchor |
| CN110029594A (en) * | 2019-04-12 | 2019-07-19 | 桂林理工大学 | A kind of construction method using multilayer prestressed fiber cloth reinforced concrete column |
| CN111005587A (en) * | 2019-12-16 | 2020-04-14 | 沈阳大学 | Self-locking prestress CFRP strip tensioning anchoring system |
| CN111058650A (en) * | 2019-12-26 | 2020-04-24 | 中国建筑第八工程局有限公司 | Carbon fiber reinforced structure tensioned through top support and construction method thereof |
| CN111101727A (en) * | 2019-12-26 | 2020-05-05 | 中国建筑第八工程局有限公司 | Carbon fiber reinforced structure for beam column and construction method thereof |
| CN114182981A (en) * | 2022-01-21 | 2022-03-15 | 江苏易鼎电力科技有限公司 | Novel carbon-fibre composite section bar anchor |
| CN114182981B (en) * | 2022-01-21 | 2023-01-31 | 江苏易鼎电力科技有限公司 | Carbon-fibre composite section bar anchor |
| CN117449608A (en) * | 2023-12-26 | 2024-01-26 | 福建理工大学 | A self-leveling carbon fiber board prestressing force tensioning equipment for cambered surface structure |
| CN117449608B (en) * | 2023-12-26 | 2024-03-12 | 福建理工大学 | A self-leveling carbon fiber board prestressing force tensioning equipment for cambered surface structure |
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