CN204456940U - A kind of fibre reinforced composites anchor device for reinforced concrete structure - Google Patents
A kind of fibre reinforced composites anchor device for reinforced concrete structure Download PDFInfo
- Publication number
- CN204456940U CN204456940U CN201520085446.9U CN201520085446U CN204456940U CN 204456940 U CN204456940 U CN 204456940U CN 201520085446 U CN201520085446 U CN 201520085446U CN 204456940 U CN204456940 U CN 204456940U
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- Prior art keywords
- anchor slab
- cloth
- slotted eye
- anchor
- concrete structure
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Abstract
The utility model discloses a kind of fibre reinforced composites anchor device of reinforced concrete structure, anchor device comprises build-in and reserves in slotted eye the anchor slab being wound with cloth in concrete structure, described cloth is used for reinforcing concrete structure, and described reserved slotted eye is used for anchoring anchor slab.Slotted eye width should be a bit larger tham anchor slab and is wound around the thickness after cloth thus anchor slab is rotated around certain orientation after cloth is stressed in reserved slotted eye, finally makes anchor slab and slotted eye two side mineralization pressure and realizes the auto-lock anchorage of anchor slab in slotted eye.During concrete enforcement, first the cloth of wet combining is fastened in the anchor slab with certain rigidity according to certain method and realizes cloth self-locking, then by anchor slab lock-bit among the concrete slotted eye held successfully in advance, finally use bonding fastening material package anchor slab is fixed in slotted eye.
Description
Technical field
The utility model relates to a kind of concrete structure anchor device, particularly relates to a kind of fibre reinforced composites anchor device for reinforced concrete structure.
Background technology
Fibre reinforced composites (Fibre Reinforced Polymer/Plastic, be called for short FRP), because having the advantages such as high strength, corrosion-resistant, lightweight, construction be convenient, are widely used in the reinforcing of concrete structure and other structures.In structural fortification, mainly adopt the form being affixed on the structural element surfaces such as beam, plate, post outside FRP cloth to improve the bearing capacity of structural element at present.Lot of experiments research finds: adopt the concrete structure member that externally bonded FRP reinforcement is reinforced, and FRP stripping damage is a kind of typical mode of failure.Due to the existence of this mode of failure, result in the high-strength material property of FRP and fail fully to be utilized, constrain the effect that externally bonded FRP reinforcement is applied to structural strengthening.In order to postpone the generation even avoiding FRP to peel off too early, improving the effect that FRP reinforces, needing effectively a kind of and applying externally bonded FRP reinforcement anchor device easily.
Summary of the invention
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide effectively a kind of and applies anchor device easily, for delaying or avoid the stripping damage of externally bonded FRP reinforcement reinforced concrete structure, thus increase FRP stock utilization, strengthen the effect of externally bonded FRP reinforcement ruggedized construction.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of fibre reinforced composites anchor device for reinforced concrete structure, comprise the anchor slab of the reserved slotted eye filled in concrete structure, the bonding fastener material of encapsulation slotted eye, end is wound in the cloth of described anchor slab, described cloth is pasted on the surface of concrete structure, described reserved slotted eye height is greater than the thickness after anchor slab winding cloth, make cloth tensioning and strain anchor slab, anchor slab rotates to an angle in reserved slotted eye by cloth tractive, the two side generation interface pressure that anchor slab dual-side props up reserved slotted eye respectively realizes self-locking, after loading anchor slab, in slotted eye, the clearance position of anchor slab periphery injects bonding fastener material, anchor slab is fixed in reserved slotted eye.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and described bonding fastener material is at least one in bonding glue, resin, resin modified concrete, expansive concrete.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and described anchor slab is hard plank, metal sheet or fiber composite board.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and is provided with at least one flat narrow shape through hole in the middle part of described anchor slab along its thickness direction.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, cloth is wound in anchor slab through the through hole in the middle of anchor slab makes suffered tractive force direction the adjacent layer of cloth contrary, and fibrous composite is self-locking on anchor slab.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and cloth is wound around at least one times on anchor slab through through hole.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and the surface of described anchor slab is matsurface or concavo-convex alternate surface.
The one being used for the technical scheme of the fibre reinforced composites anchor device of reinforced concrete structure as the utility model is improved, and the degree of depth of described reserved slotted eye is greater than the width of anchor slab.
The beneficial effects of the utility model are: by the FRP fibre cloth winding of wet combining around being fixed on the anchor slab (anchor slab material can be steel, timber or other section bars etc.) with certain rigidity, then anchor slab and the FRP cloth one be wound around are reinstated suitable resin anchoring among the concrete slotted eye held successfully in advance, finally use glue package, make anchor slab stable anchorage avoid stripping damage.Anchor slab has rotary motion by cloth tractive and is inclined in concrete slotted eye, and anchor slab is stopped in slotted eye obliquely, making it from locking in slotted eye simultaneously, forming stable auto-lock anchorage structure by frictional force effect.Above-mentioned anchor device has good anchoring effect, have simultaneously simple for production, normability good, construction is simple, low cost and other advantages, therefore, it is possible to be applied to preferably engineering structure reinforce.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fibre reinforced composites anchor device first embodiment for reinforced concrete structure of the utility model.
Fig. 2 is the cross-sectional structure schematic diagram at the winding cloth place of Fig. 1.
Fig. 3 is the structural representation of a kind of fibre reinforced composites anchor device second embodiment for reinforced concrete structure of the utility model.
Fig. 4 is the cross-sectional structure schematic diagram at the winding cloth place of Fig. 3.
Fig. 5 is that the another kind at the winding cloth place of Fig. 3 may cross-sectional structure schematic diagram.
Fig. 6 is that the anchor slab being wound around cloth realizes from anchor schematic diagram in slotted eye.
Fig. 7 is the square cross schematic diagram of anchor slab.
Fig. 8 is the circular cross-section structural representation of anchor slab.
Fig. 9 is the rectangular cross-sectional structural representation of anchor slab.
Figure 10 is the cross section structure schematic diagram of tabular anchor slab when being provided with through hole.
Figure 11 is the enforcement schematic diagram that anchor slab is wound around primary fiber cloth.
Figure 12 is the enforcement schematic diagram that anchor slab is wound around secondary stock cloth.
Figure 13 is the cloth 12 oppositely movement under force schematic diagram that cloth perforation is wound adjacent layer.
Detailed description of the invention
Detailed description of the invention of the present utility model is further illustrated below in conjunction with accompanying drawing.
As Fig. 1, shown in Fig. 2, a kind of fibre reinforced composites anchor device for reinforced concrete structure of the utility model, it comprises filling in and comprises beam in concrete structure 11(, plate, the structures such as post) the anchor slab 15 of reserved slotted eye, end is wound in the cloth 12 of described anchor slab 15, anchor slab and winding part cloth use bonding fastener material in encapsulation slotted eye, described cloth 12 is pasted on the surface of concrete structure, described reserved slotted eye height be greater than anchor slab 15 be wound around cloth 12 after thickness make anchor slab 15 realize self-locking by the rotation in reserved slotted eye of cloth 12 tractive is in tilted layout.Wherein, cloth 12 tensioning also strains anchor slab 15, anchor slab 15 rotates to an angle in reserved slotted eye by cloth 12 tractive, the two side generation interface pressure that anchor slab 15 dual-side props up reserved slotted eye respectively realizes self-locking, after loading anchor slab 15, in slotted eye, the clearance position of anchor slab periphery injects bonding fastener material, and anchor slab 15 is fixed in reserved slotted eye.The FRP cloth 12 of wet combining is fastened on the anchor slab 15 with certain rigidity or anchor pole, then anchor slab 15 and the FRP cloth one be wound around is reinstated suitable resin anchoring among the concrete slotted eye held successfully in advance, finally encapsulate with glue 16.Anchor slab 15 has rotary motion by cloth tractive and is inclined in concrete slotted eye, and anchor slab 15 is stopped in slotted eye obliquely, making it from locking in slotted eye simultaneously, forming stable auto-lock anchorage structure by frictional force effect.Above-mentioned anchor device has good anchoring effect, have simultaneously simple for production, normability good, construction is simple, low cost and other advantages, therefore, it is possible to be applied to preferably engineering structure reinforce.
Compared with prior art, FRP cloth is wound in anchor slab 15 and then positions in concrete slotted eye and anchoring by the anchor device that this patent relates to, utilize anchor slab 15 because of the stressed rotation trend caused, form compression face in local with concrete pit hole and make anchor slab 15 self-locking in slotted eye, increase anchor slab 15 and be wound around FRP cloth 12 and concrete frictional force, thus increasing integral fastening effect.Thus avoid and need extra anchor pole to be delivered on concrete component by the power of FRP cloth, avoid and need increase material and operating expenses owing to carrying out secondary anchoring with bolt to anchor pole (or anchor slab) and the shortcoming of original reinforcing steel bar bear in concrete may be disturbed.Directly FRP cloth be wrapped on anchor slab 12 in the utility model and carry out anchoring, force path is simple, avoid fiber ground tackle with overlapped by anchoring fiber stress that power transmission causes concentrate the problem broken in advance of the anchorage zone fiber that causes.
Anchor device can arrange an overall cloth 12(as shown in Figure 3), multiple cloth 12 also can be set and be arranged side by side (as shown in Figure 1).Described reserved slotted eye can be set to oblique layout as shown in Figure 5, also can be set to the horizontal parallel shown in Fig. 2 and arrange, can also be set to the vertical setting shown in Fig. 4.
Wherein, described bonding fastener material is at least one in bonding glue, resin, resin modified concrete, expansive concrete, for being fixedly mounted in concrete structure by anchor slab 15.
More preferably, described anchor slab 15 is plank, metal sheet or fiber composite plate, and the material of anchor slab 15 can be steel, timber or other section bars etc., selects solid solid wood plate, metal sheet or fiber composite plate, comparatively powerful support force can be produced, form firm fulcrum.
More preferably, be provided with through hole 18 along its thickness direction in the middle part of described anchor slab 15, through hole extends layout along its length, and through hole is flat narrow shape and at least arranges one, can two or more.This anchor device is when needed by the mode at anchor slab 15 central aperture, FRP cloth perforation is made to be wound the cloth 12 oppositely movement under force (as shown in Figure 6) of adjacent layer, relative movement is avoided in cloth 12 locking rubbing against one another of adjacent layer, thus reach the stable effect of auto-lock anchorage, namely be wound different layers cloth 12 oppositely stress after utilizing FRP cloth to pass perforate anchor slab 15, FRP and anchor slab 15 are reached from anchoring effect.
More preferably, in the middle part of described anchor slab 15, be provided with at least two through holes along its length, cloth can be interted back and forth for more than 15 time at anchor slab, realize the firm winding from anchoring type.
More preferably, cloth 12 is wound in anchor slab 15 through the through hole in the middle of anchor slab makes suffered tractive force direction the adjacent layer of cloth 12 contrary, and adjacent layer is adjacent to generation frictional force each other and realizes self-locking, fibrous composite and cloth 12 are from locking in anchor slab 15, anchor slab 15 realizes anchoring from locking in slotted eye, realizes cloth 12 dress and is affixed in the default slotted eye of concrete structure.
Thickness also by increasing the winding number of turns of FRP cloth 12 on anchor slab 15 and anchor slab 15 in practice of construction process reduces buried depth, and anchor slab 15 according to actual needs can for different cross sectional shapes (as shown in Fig. 7, Fig. 8, Fig. 9, Figure 10) simultaneously.Increase anchored end FRP cloth and concrete bond area by being wound around the number of turns from anchor and increase, thus increase anchoring effect; Under appropraite condition (the discontinuous stickup of FRP), anchor slab 15 size can be increased, anchor slab 15 to be reached outside FRP winding zone and to carry out anchoring, to provide extra anchoring effect.
More preferably, cloth 12 is wound around at least one times through through hole on anchor slab 15, as shown in Figure 11, Figure 12, Figure 13, makes it firmly be wound in anchor slab 15 and even forms self-locking by frictional force between adjacent fiber cloth 12.
More preferably, the surface of described anchor slab 15 is matsurface or concavo-convex alternate surface, can increase the frictional force between cloth 12 and anchor slab 15, promotes strength of connection each other.
More preferably, the degree of depth of described reserved slotted eye is greater than the width of anchor slab 15, makes anchor slab 15 to reserve in slotted eye by embed wholly, realizes secure anchorage.
In the utility model, implement a kind of fibre reinforced composites anchoring process for reinforced concrete structure of above-mentioned anchor device, it comprises the following steps:
A, reserved slotted eye is set at concrete structure 11, described reserved slotted eye is oblique or parallel or vertically arranges, namely arbitrarily angled installation is all fine, need with concrete structure 11 and installation and determine, this reserved slotted eye is used for setting-in anchor slab 15, anchor slab is placed in reserved slotted eye, produces rotating tendency thus certainly lock in this slotted eye under the tractive force effect of cloth 12;
B, the end of cloth 12 is wound in anchor slab 15, being formed can for the end of anchoring;
The surface of concrete structure 11 is affixed on outside C, cloth 12, the anchor slab 15 being wound with cloth 12 is loaded in reserved slotted eye, make cloth 12 tensioning and strain anchor slab 15, anchor slab 15 rotates to an angle, the upper and lower side that dual-side props up reserved slotted eye respectively forms self-locking, thus anchor slab 15 is anchored in concrete structure 11, the tractive force produced after anchoring is provided, reinforcement effect is produced to concrete structure 11.
More preferably, after loading anchor slab 15, inject coagulating agent at the clearance position of anchor slab 15 periphery, anchor slab 15 is fixed in reserved slotted eye.Coagulating agent can be the material of glue 16 or other encapsulation, anchor slab 15 consolidation is made to be installed in slotted eye, because this anchor device is embedded in concrete pit by glue 16 encapsulation, the common fault of the easy corrosion of metal ground tackle can be avoided, make it have corrosion resistant advantage.
More preferably, flat narrow shape through hole is provided with in the middle part of described anchor slab 15, cloth 12 is wound in anchor slab 15 through through hole 18 makes suffered tractive force direction the adjacent layer of cloth 12 contrary, under frictional force effect, be difficult to produce dislocation move, thus cloth 12 is firmly tangled in anchor slab 15 form stable anchor point, cloth after anchoring 12 is stablized do not move, avoid being bonded in concrete structure 11 and be peeling destruction.Fibre cloth winding, around at least one circle on anchor slab 15, as shown in Figure 11, Figure 12, Figure 13, makes it firmly be wound in anchor slab 15 and even forms self-locking by frictional force between adjacent fiber cloth 12.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (8)
1. the fibre reinforced composites anchor device for reinforced concrete structure, it is characterized in that: the anchor slab comprising the reserved slotted eye filled in concrete structure, the bonding fastener material of encapsulation slotted eye, end is wound in the cloth of described anchor slab, described cloth is pasted on the surface of concrete structure, described reserved slotted eye height is greater than the thickness after anchor slab winding cloth, make cloth tensioning and strain anchor slab, anchor slab rotates to an angle in reserved slotted eye by cloth tractive, the two side generation interface pressure that anchor slab dual-side props up reserved slotted eye respectively realizes self-locking, after loading anchor slab, in slotted eye, the clearance position of anchor slab periphery injects bonding fastener material, anchor slab is fixed in reserved slotted eye.
2. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 1, is characterized in that: described bonding fastener material is at least one in bonding glue, resin, resin modified concrete, expansive concrete.
3. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 1, is characterized in that: described anchor slab is hard plank, metal sheet or fiber composite board.
4. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 1, is characterized in that: be provided with at least one flat narrow shape through hole along its thickness direction in the middle part of described anchor slab.
5. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 4, it is characterized in that: cloth is wound in anchor slab through the through hole in the middle of anchor slab makes suffered tractive force direction the adjacent layer of cloth contrary, and fibrous composite is self-locking on anchor slab.
6. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 4, is characterized in that: cloth is wound around at least one times on anchor slab through through hole.
7. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 1, is characterized in that: the surface of described anchor slab is matsurface or concavo-convex alternate surface.
8. the fibre reinforced composites anchor device for reinforced concrete structure according to claim 1, is characterized in that: the degree of depth of described reserved slotted eye is greater than the width of anchor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085446.9U CN204456940U (en) | 2015-02-06 | 2015-02-06 | A kind of fibre reinforced composites anchor device for reinforced concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085446.9U CN204456940U (en) | 2015-02-06 | 2015-02-06 | A kind of fibre reinforced composites anchor device for reinforced concrete structure |
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| Publication Number | Publication Date |
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| CN204456940U true CN204456940U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520085446.9U Withdrawn - After Issue CN204456940U (en) | 2015-02-06 | 2015-02-06 | A kind of fibre reinforced composites anchor device for reinforced concrete structure |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631853A (en) * | 2015-02-06 | 2015-05-20 | 广东工业大学 | Fiber reinforced composite material anchoring device and method for reinforcing concrete structure |
-
2015
- 2015-02-06 CN CN201520085446.9U patent/CN204456940U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631853A (en) * | 2015-02-06 | 2015-05-20 | 广东工业大学 | Fiber reinforced composite material anchoring device and method for reinforcing concrete structure |
| CN104631853B (en) * | 2015-02-06 | 2016-08-17 | 广东工业大学 | A kind of fibre reinforced composites anchor for reinforced concrete structure and anchoring process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |