CN201439646U - Fiber cloth anchor device for reinforcing externally bonded fiber cloth in concrete structure - Google Patents
Fiber cloth anchor device for reinforcing externally bonded fiber cloth in concrete structure Download PDFInfo
- Publication number
- CN201439646U CN201439646U CN200920306591XU CN200920306591U CN201439646U CN 201439646 U CN201439646 U CN 201439646U CN 200920306591X U CN200920306591X U CN 200920306591XU CN 200920306591 U CN200920306591 U CN 200920306591U CN 201439646 U CN201439646 U CN 201439646U
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- fiber cloth
- cloth
- steel disc
- anchor device
- externally bonded
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Abstract
The utility model relates to a fiber cloth anchor device for reinforcing externally bonded fiber cloth in a concrete structure, belonging to the technical field of reinforcing a civil engineering structure. The fiber cloth anchor device is characterized in that screws are fixedly distributed at both sides of the fiber cloth by using binder, the torque is applied to nuts on the screws with a torque wrench, and rectangular steel sheets with a certain quantity are closely pressed on the externally bonded fiber cloth through tightening the nuts on the screws at both sides. The fiber cloth anchor device has the effects and benefits that the screws are led in as fasteners and are fixed through the binder, the steel sheet is fastened through the external force exerted by the torque wrench, the externally bonded fiber cloth is reliably anchored, and the early-stage debonding failure of the externally bonded fiber cloth is prevented. By adopting the technology, the early-stage debonding failure does not occur when the number of layers of the externally bonded fiber cloth is seven, thereby fully utilizing the tensile strength of the high-strength fiber cloth. The fastening force can be accurately controlled, the number of the anchoring elements is obviously reduced, the damage to the former member is small, the reliability is high, and the operability is strong.
Description
Technical field
The utility model belongs to civil engineering structure reinforcing technique field, relates to a kind of outer cloth anchor device in the cloth method reinforced concrete structure that pastes.
Background technology
Tradition mechanical anchor method is that anchoring piece is passed the cloth surface, utilizes the bearing capacity of cloth, stops the early stage stripping damage of cloth.But the bearing capacity of cloth is limited, has limited the use of this conventional method.There is the scholar to propose compound anchoring in recent years, utilizes concrete nail that steel disc is pressed on the cloth, reach the purpose that stops the early stage stripping damage of cloth.This method utilization be that concrete nail extruding steel disc is realized the pressuring action to cloth, do not need cloth that bearing capacity is provided, therefore can be applied to the anchoring of general fibre cloth.But there are the following problems for this method:
1) concrete nail is to pound into inside concrete by hammer, can't quantitatively control, and in the process of knocking concrete nail concrete component is caused bigger damage easily;
2) nail and concrete binding are poor, and for guaranteeing respective carrier power, usage quantity is too much, cause the waste in man-hour, poor reliability;
3) existing result of study shows that this method can stop peeling off of 4 layers of cloth at most.
Summary of the invention
In order to overcome the deficiency of existing cloth anchoring process, the utility model provides a kind of improved cloth anchoring, and this method not only can stop peeling off of cloth, and the reliability height, and is workable, little to the damage of original member.
The technical solution of the utility model is as follows: this device comprise steel disc, screw rod, nut and be positioned on the concrete component with steel disc on the boring of hole opposite position.Steel disc be shaped as rectangle, as rectangle, square etc., the circular hole that respectively has and screw diameter be complementary in the both sides of steel disc.
Pre-strenthening member is pasted the position of cloth and carry out the rough surface processing, and paste cloth according to the rules, paste the both sides of the width of cloth then outside, close on the position of cloth longitudinal edge, with drill bit get out on the concrete component with steel disc on the boring of hole opposite position, in boring, inject cementing agent then, screw rod is inserted the back fix.Steel disc is sleeved on this group screw rod that fixes, and coats cementing agent in the one side that steel disc contacts with cloth.Nut and pad are sleeved on the screw rod, treat adhesive cures after, apply moment of torsion with torque wrench.The total length of screw rod is determined according to thickness, steel plate thickness and the nut height of buried depth, stickup cloth.By that analogy, along the fixing some groups of screw rods of the machine direction of cloth, each steel disc is sleeved on the every group of screw rod that fixes successively.
Effect of the present utility model and benefit be, introduces screw rod as securing member, and utilize the cementing agent standing screw, significantly increased screw rod and concrete adhesion stress.Apply external force by torque wrench, fastening steel disc, reliably anchoring outer subsides method cloth, can effectively prevent the early stage stripping damage of outer subsides method cloth.Test shows that the subsides carbon cloth number of plies still can not take place to peel off in early days outside this technology can make in the time of 7 layers, thereby makes full use of the tensile property of high strength fibre cloth.The fastening force that applies can accurately be controlled, and the number of anchoring piece also can obviously reduce, and is little to former component damage, reliability height, strong operability.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is steel disc figure
Fig. 2 is screw rod and supporting nut and pad figure
Fig. 3 is the constructional drawing of this utility model
Fig. 4 is the cross-sectional view of this utility model in stabilization works
Fig. 5 is the longitudinal section of this utility model in stabilization works
Among the figure: 1 steel disc; 2 screw rods; 3 nuts; 4 pads; 5 cloth; 6 are reinforced component partial; 7 borings.
The specific embodiment
Be described in detail specific embodiment of the utility model below in conjunction with technical scheme and accompanying drawing.
According to illustrated in figures 1 and 2, the cloth anchor device is made up of steel disc 1, screw rod 2, nut 3 and pad 4.Steel disc 1 is a rectangle, is used for compressing the cloth 5 that is positioned at below it.
At first the rough surface processing is carried out in the position that pre-reinforced concrete member 6 is pasted cloth 5, makes cloth 5 and former member 6 that good bonding be arranged.With cloth 5 according to the rules method paste, treat adhesive cures after, on member,, get out symmetrical boring 7 according to a determining deviation electricity consumption along the both sides of pasting cloth 5 positions, be used for fixing screw rod 2.The accurate of 7 vertical and position will guarantee to hole in boring procedure.After handle in the clear hole of process, in boring 7, inject cementing agent, screw rod 2 is inserted hole 7, be fixed on the relevant position, will keep the vertical of screw rod 2 during insertion.After the cementing agent of standing screw 2 solidifies fully, steel disc 1 is coated cementing agent with the one side that cloth 5 contacts, and be sleeved on the screw rod 2 that has fixed.Then pad 4 and nut 3 are sleeved on the screw rod 2, and nut 3 are applied moment of torsion, be used for fastening steel disc 1 with torque wrench.
Claims (4)
1. one kind outer is pasted cloth anchor device in the cloth method reinforced concrete structure, it is characterized in that: this device comprise steel disc (1), screw rod (2), nut (3) and be positioned on the concrete component with steel disc on the boring (7) of hole opposite position; The circular hole that respectively has one and screw rod (2) diameter be complementary in the both sides of steel disc (1); After injecting cementing agent in the boring (7) screw rod (2) is inserted, fixes; Steel disc (1) is sleeved on the screw rod (2) that fixes, and scribbles cementing agent with the one side that cloth (5) contacts at steel disc (1); Along the fixing some groups of screw rods (2) of the machine direction of cloth (5), each steel disc (1) is sleeved on the every group of screw rod (2) that fixes successively.
2. the outer cloth anchor device in the cloth method reinforced concrete structure that pastes according to claim 1, its feature also is: steel disc (1) be shaped as rectangle.
3. the outer cloth anchor device in the cloth method reinforced concrete structure that pastes according to claim 2, its feature also is: described rectangle is rectangle or square.
4. according to claim 1, the 2 or 3 described outer cloth anchor devices in the cloth method reinforced concrete structure that paste, its feature also is: between steel disc (1) and nut (3) pad (4) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920306591XU CN201439646U (en) | 2009-07-21 | 2009-07-21 | Fiber cloth anchor device for reinforcing externally bonded fiber cloth in concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920306591XU CN201439646U (en) | 2009-07-21 | 2009-07-21 | Fiber cloth anchor device for reinforcing externally bonded fiber cloth in concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439646U true CN201439646U (en) | 2010-04-21 |
Family
ID=42544316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920306591XU Expired - Fee Related CN201439646U (en) | 2009-07-21 | 2009-07-21 | Fiber cloth anchor device for reinforcing externally bonded fiber cloth in concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201439646U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974959A (en) * | 2010-09-30 | 2011-02-16 | 大连理工大学 | Concrete structure FRP end anchor device |
| CN102660927A (en) * | 2012-03-23 | 2012-09-12 | 陈兴冲 | Method for realizing seismic reinforcement of pier by the aid of carbon fibers |
| CN110206336A (en) * | 2019-06-24 | 2019-09-06 | 重庆交通大学 | Fibre reinforced composites anchor and anchor structure with precompression |
-
2009
- 2009-07-21 CN CN200920306591XU patent/CN201439646U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974959A (en) * | 2010-09-30 | 2011-02-16 | 大连理工大学 | Concrete structure FRP end anchor device |
| CN102660927A (en) * | 2012-03-23 | 2012-09-12 | 陈兴冲 | Method for realizing seismic reinforcement of pier by the aid of carbon fibers |
| CN110206336A (en) * | 2019-06-24 | 2019-09-06 | 重庆交通大学 | Fibre reinforced composites anchor and anchor structure with precompression |
| CN110206336B (en) * | 2019-06-24 | 2021-04-27 | 重庆交通大学 | Fiber reinforced composite material anchoring device with pre-pressure and anchoring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20180721 |