CN105781140A - Self-anchored pre-stressed fiber reinforced composite cloth based concrete strengthening device and method - Google Patents
Self-anchored pre-stressed fiber reinforced composite cloth based concrete strengthening device and method Download PDFInfo
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- CN105781140A CN105781140A CN201610215581.XA CN201610215581A CN105781140A CN 105781140 A CN105781140 A CN 105781140A CN 201610215581 A CN201610215581 A CN 201610215581A CN 105781140 A CN105781140 A CN 105781140A
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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
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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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- 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
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
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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
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
- E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to a self-anchored pre-stressed fiber reinforced composite cloth based concrete strengthening device and method.The device comprises fiber cloth, a fixing end clamp, fixing end clamp anchor bolts, a fixing end steel groove, fixing end anchor bolts, fixing end fixing screw rods, a tensioning end clamp, tensioning end clamp anchor bolts, tensioning end clamp bolts, a tensioning end steel groove, tensioning end anchor bolts, tensioning end fixing screw rods, a tensioning screw rod, a jack, a force sensor and the like.By formation of the self-anchored counterforce tensioning fiber reinforced composite cloth on the surface of a strengthening part, a complex external tensioning platform is avoided; due to a double-screw structure of a tensioning end, uniform force application of the fiber cloth is realized, damages of the fiber cloth are avoided, and the problem of eccentricity in a tensioning process is solved.In addition, by integration of anchoring and tensioning clamps, prestress loss is reduced.The device is capable of providing high prestress and suitable for strengthening of concrete components in different sizes.
Description
Technical field
The present invention relates to the technical field of reinforced concrete member, particularly to a kind of self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device and method.
Background technology
Reinforced concrete structure obtains a wide range of applications in the field such as transportation, industrial building, in order to eliminate due to overload, and the potential safety hazard that the reason such as tired is brought, it is necessary to damaged structure component is reinforced, extends its service life.
Fibre reinforced composites, owing to its volume is little, lightweight, intensity is high, corrosion resistance is good, fatigability is strong and the advantage such as easy construction, are widely used in being subject in curved concrete structure reinforcement engineering.But, traditional fibre reinforced composite reinforcing engineering mainly adopts without prestressing, this reinforcement means is primarily present following shortcoming: can not recover the damage of original structure in time, changes the deformation of original structure；Can not giving full play to the high intensity of fibre reinforced composites, integral reinforcing efficiency is low.The advantage of pre-stress fibre reinforced composite concrete stabilizing technology binding fiber reinforced composite high-performance and prestressing technique, the shortcoming that can overcome traditional structure reinforcement technique, play the performance that fibre reinforced composites intensity is high better, improve the utilization rate of fibre reinforced composites, effectively improve static(al) and the fatigue behaviour of original structure, improve serviceability and bearing capacity, control critical eigenvalue and the deformation of damaged structure, extend its service life.
At present, pre-stress fibre reinforced composite reinforcement means is mainly indirect strengthening method and direct stretch-draw method for strengthening.Indirect method is owing to can only provide only small prestressing force, and needs specific device, at Practical Project and be of little use；And there are 2 subject matters in existing direct stretch-draw reinforcement technique: stretching process force is uneven, fibre reinforced composites premature harm in stretching process, cause being difficult to obtain bigger prestressing force；Lack effective anchoring process, cause that loss of prestress is excessive after stretch-draw completes, reduce consolidation effect.Therefore, need the apparatus and method of a kind of new pre-stress fibre reinforced composite reinforced concrete, fibre reinforced composites uniform force can either be made in stretching process, can effectively anchor again, ensure to obtain bigger stress distribution, reach good consolidation effect.
Summary of the invention
It is an object of the invention to consider the problems referred to above and propose a kind of self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device that bigger stress distribution can be provided and can better solve anchorage problem.
Another object of the present invention is to consider that the problems referred to above propose a kind of method of self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete that can provide bigger stress distribution and can better solve anchorage problem.
nullThe self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device of the present invention，Including fiber cloth、Fixing end fixture、Fixing end fixture crab-bolt、Fixing end steel tank、Fixing end crab-bolt、Fixing end standing screw、Fixing end nut、Stretching end fixture、Stretching end fixture crab-bolt、Stretching end fixture bolt、Stretching end steel tank、Stretching end crab-bolt、Stretching end standing screw、Stretching end nut、Tensioning screw rod、Tensioning screw rod nut、First baffle plate、Second baffle、Third gear plate、Jack、Force transducer，Concrete component to be reinforced is reserved anchor hole at tension face two ends，Fixing end steel tank and stretching end steel tank are anchored in concrete component tension face by fixing end crab-bolt and stretching end crab-bolt respectively，Fiber cloth two ends are respectively with fixing end fixture and stretching end holder，And utilize fixing end fixture crab-bolt and stretching end fixture bolt to make fixing end fixture and stretching end clamp respectively，And fixing end fixture and stretching end fixture are respectively through 2 fixing end standing screws and 2 stretching end standing screws and fixing end steel tank、Stretching end steel tank connects，And by fixing end fixture crab-bolt, fixing end fixture is anchored in concrete component，The terminal bolt that is simultaneously tightened makes fixing end fixture and fixing end steel tank affixed，Jack is positioned between the first baffle plate and second baffle，Force transducer is positioned between second baffle and third gear plate，Tensioning screw rod is then passed through the first baffle plate after the through hole set by stretching end steel tank、Jack、Second baffle、Force transducer、Third gear plate，And the end of tensioning screw rod screws tensioning screw rod nut，By the first baffle plate、Jack、Second baffle、Force transducer、Third gear plate links together，Stretching end fixture stretching end fixture crab-bolt is anchored in the surface pre-manufactured hole of concrete component to be reinforced，And screw stretching end nut，Stretching end fixture is made to have anchored.
The reinforcement means of the device of pre-stress fibre reinforced composite reinforced concrete of the present invention, comprises the following steps:
1) remove the deterioration concrete such as the peeling waiting to reinforce surface of concrete structure, loose, honeycomb, corrosion, expose concrete, and with repair materials, surface reconditioning is smooth；
2) concrete surface depressed area alignment material fills up smooth, and fracture carries out being in the milk or sealing treatment；
3) concrete component to be reinforced reserves anchor hole at tension face two ends, and by fixing end crab-bolt and stretching end crab-bolt, fixing end steel tank and stretching end steel tank are anchored in concrete component tension face respectively；
4) smearing binding agent in fiber cloth and concrete component contact surface, fixing end smears binding agent on fixture and stretching end fixture bottom surface and concrete component contact surface；
5) fiber cloth two ends are respectively with fixing end fixture and stretching end holder, and utilize fixing end fixture crab-bolt and stretching end fixture bolt to make respectively to fix end fixture and stretching end clamp；
6) fixing end fixture and stretching end fixture are connected with fixing end steel tank, stretching end steel tank respectively through 2 fixing end standing screws and 2 stretching end standing screws, and by fixing end fixture crab-bolt, fixing end fixture being anchored in concrete component, the end nut that is simultaneously tightened makes fixing end fixture and fixing end steel tank affixed；
7) by the manhole on tensioning screw rod traverse stretching end steel tank, opposite side installs the first baffle plate, second baffle, third gear plate, jack is positioned over the centre of the first baffle plate and second baffle, and force transducer is positioned over the centre of second baffle and third gear plate, screws 2 tensioning screw rod nuts；
8) and use jack pushing tow the first baffle plate, it is promoted to the inside, drive stretching end fixture to do synchronous shift, to fiber cloth Shi Hanzhang；
9), after stretch-draw is stablized, by fiber cloth pressure viscosity in concrete surface, and pressure is held with sand hill；
10) stretching end fixture stretching end fixture crab-bolt is anchored in the surface pre-manufactured hole of concrete component to be reinforced, and screws stretching end nut, makes stretching end fixture anchor.
The present invention is reserved anchor hole at the tension face two ends of concrete component；The steel clamp at steel tank and gripping fibers cloth two ends is had and is placed on tension face, the fixture of fixing end and steel tank are connected fixing, and adopting crab-bolt to be anchored in concrete by the fixture of fixing end, the fixture of stretching end then utilizes bolt and steel tank not to fix connection, with to be tensioned；2 high-strength bolts are utilized steel tank, 3 pieces of baffle plates to be coupled together；Jack is placed between baffle plate and baffle plate, force transducer is placed between baffle plate and baffle plate, fiber cloth is carried out steady stretch-draw；After stretch-draw is stable, utilizes resin that fiber cloth is pasted on concrete surface, then the fixture of stretching end and steel tank are fixedly connected, and the fixture of stretching end is anchored in concrete；After stretch-draw, adhesive curing to be bonded, smear anti-corrosive grease on all of metalwork surface, and whitewash the adhesive protective layer as fiber cloth.Owing to taking above technical scheme, compared with prior art, the invention have the characteristics that and beneficial effect:
1, fiber cloth ground tackle adopts clip type knuckle-tooth face steel ground tackle, uses crab-bolt, bolt to carry out the assembling of fixture so that the anchorage efficiency coefficient of the present invention is high, and not easily makes carbon cloth wear and tear.
2, reach to form self-anchored type stretch-draw counter-force platform by integral fastening, save space, it is possible to be suitable for the concrete component of various sizes.
3, stretching end fixture is connected by tensioning screw rod, forms twin screw symmetry tension structure, fiber cloth uniform force application when making stretch-draw, it is to avoid eccentric tension, it is provided that the prestressing force of greater level.
4, fixing end fixture is by fixing end fixture crab-bolt anchoring concrete component, and with fixing end standing screw, fixing end nut, the bottom of fixing end steel tank with fixing end fixture is connected fixing, use fixing end crab-bolt that fixing end steel bar is anchored concrete component, reach fixing end integral fastening；Stretching end fixture is anchored in the pre-manufactured hole of concrete component by stretching end fixture crab-bolt, and the bottom of stretching end steel tank with stretching end fixture is connected fixing with stretching end standing screw, stretching end nut, use stretching end crab-bolt that stretching end steel tank is anchored in concrete component, reach stretching end integral fastening.Above anchorage style high degree reduces the loss of prestress caused by anchoring.
Accompanying drawing explanation
Fig. 1 is the overall structure front view of the device of pre-stress fibre reinforced composite reinforced concrete member of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of fixing end:
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the A-A sectional view of Fig. 3；
Fig. 6 is stretching end structural representation:
Fig. 7 is the top view of Fig. 6；
Fig. 8 is the B-B sectional view of Fig. 6.
In figure:
1-concrete component, 2-includes fiber cloth, 3-fixing end fixture, 4-fixing end fixture crab-bolt, 5-fixing end steel tank, 6-fixing end crab-bolt, 7-fixing end standing screw, 8-fixes end nut, 9-stretching end fixture, 10-stretching end fixture crab-bolt, 11-stretching end fixture bolt, 12-stretching end steel tank, 13-stretching end crab-bolt, 14-stretching end standing screw, 15-stretching end nut, 16-tensioning screw rod, 17-tensioning screw rod nut, 18-the first baffle plate, 19-second baffle, 20-third gear plate, 21-jack, 22-force transducer.
Detailed description of the invention
It is further described below in conjunction with the drawings and Examples a kind of self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device to the present invention and the method and technology feature for reinforced concrete thereof.
nullThe device of pre-stress fibre reinforced composite cloth reinforced concrete of the present invention，Including fiber cloth 2、Fixing end fixture 3、Fixing end fixture crab-bolt 4、Fixing end steel tank 5、Fixing end crab-bolt 6、Fixing end standing screw 7、Fixing end nut 8、Stretching end fixture 9、Stretching end fixture crab-bolt 10、Stretching end fixture bolt 11、Stretching end steel tank 12、Stretching end crab-bolt 13、Stretching end standing screw 14、Stretching end nut 15、Tensioning screw rod 16、Tensioning screw rod nut 17、First baffle plate 18、Second baffle 19、Third gear plate 20、Jack 21、Force transducer 22，Concrete component 1 to be reinforced is reserved anchor hole at tension face two ends，Fixing end steel tank 5 and stretching end steel tank 12 are anchored in concrete component 1 tension face by fixing end crab-bolt 6 and stretching end crab-bolt 13 respectively，Fiber cloth 2 two ends clamp with fixing end fixture 3 and stretching end fixture 9 respectively，And utilize fixing end fixture crab-bolt 4 and stretching end fixture bolt 11 to make fixing end fixture 3 and stretching end fixture 9 clamp respectively，And fixing end fixture 3 and stretching end fixture 9 are respectively through 2 fixing end standing screws 7 and 2 stretching end standing screws 14 and fixing end steel tank 5、Stretching end steel tank 12 connects，And by fixing end fixture crab-bolt 4, fixing end fixture 3 is anchored in concrete component 1，The terminal bolt 8 that is simultaneously tightened makes fixing end fixture 3 and fixing end steel tank 5 affixed，Jack 21 is positioned between the first baffle plate 18 and second baffle 19，Force transducer 22 is positioned between second baffle 19 and third gear plate 20，Tensioning screw rod 16 is then passed through the first baffle plate 18 after the through hole set by stretching end steel tank 12、Jack 21、Second baffle 19、Force transducer 22、Third gear plate 20，And the end of tensioning screw rod 16 screws tensioning screw rod nut 17，By the first baffle plate 18、Jack 21、Second baffle 19、Force transducer 22、Third gear plate 20 links together，Stretching end fixture 9 stretching end fixture crab-bolt 10 is anchored in the surface pre-manufactured hole of concrete component 1 to be reinforced，And screw stretching end nut 15，Stretching end fixture 9 is made to have anchored.
In the present embodiment, jack 21 pushing tow the first baffle plate 18, it is promoted to the inside, stretching end fixture 9 is driven to do synchronous shift, to fiber cloth 2 Shi Hanzhang, after stretch-draw is stable, described fiber cloth 2 and the contact surface of concrete component 1 smear binding agent, by fiber cloth 2 pressure viscosity in the surface of concrete component 1, and hold pressure with sand hill, the bottom surface of fixing end fixture 3 and stretching end fixture 9 with the contact surface of concrete component 1 on smear binding agent, the bottom surface pressure viscosity of fixing end fixture 3 and stretching end fixture 9 is in the surface of concrete component 1.
In the present embodiment, described 2 stretching end standing screws 14 are each passed through the through hole set by stretching end steel tank 12 both sides and stretching end steel tank 12 and stretching end fixture 9 are linked together by the through hole set by stretching end fixture 9 bottom, stretching end steel tank 12 is additionally provided with another connecting hole, and tensioning screw rod 16 is connected through the connecting hole set by stretching end steel tank 12 with stretching end steel tank the 12, first baffle plate 18, second baffle 20, third gear plate 21, jack 21, force transducer 22；Fixing end steel tank 5 anchors to concrete component 1 by fixing end crab-bolt 6,2 fixing end standing screws 7 are each passed through fixing end 5 liang of side through hole of steel tank and fixing end through hole set by fixture 3 lower clamp and fixing end steel tank 5 and fixing end fixture 3 are linked together, and fixing end fixture 3 anchors to concrete component 1 by fixing end fixture crab-bolt 4.Described fixing end standing screw 7, stretching end standing screw 14, tensioning screw rod 16 are high-strength bolt.
In the present embodiment, described fixing end fixture 3 includes top and bottom, and fixing end fixture 3 is 2 sphenoids with knuckle-tooth face, and fixing end fixture 3 has 6 manholes for installing fixing end fixture crab-bolt 4；The bottom of fixing end fixture 3 is provided with 2 circular ports for connecting fixing end standing screw 7；Described stretching end fixture 9 includes top and bottom, and stretching end fixture 9 is 2 sphenoids with knuckle-tooth face, and stretching end fixture 9 is provided with 6 for installing stretching end fixture crab-bolt 10 and the circular port of stretching end fixture bolt 11；The bottom of stretching end fixture 9 is provided with 2 circular ports for connecting stretching end standing screw 14.
In the present embodiment, described fixing end steel tank 5 is U-shaped body, and end face has 6 use to fix end crab-bolt 6 to be anchored in the manhole on concrete component 1, separately have 2 manholes connecting fixing end standing screws 7.
In the present embodiment, described stretching end steel tank 12 is U-shaped body, and end face has 6 manholes being anchored on concrete component 1 by stretching end crab-bolt 13, separately has 2 manholes connecting stretching end standing screw 14.
In the present embodiment, described fixing end standing screw 7 is cylinder, two ends band external screw thread；Described stretching end standing screw 14 is cylinder, two ends band external screw thread；Described tensioning screw rod 16 is cylinder, two ends band external screw thread.
Above-mentioned fixing end fixture 3 anchors concrete component by fixing end fixture crab-bolt 4, and with fixing end standing screw 7, fixing end nut 8, the bottom of fixing end steel tank 5 with fixing end fixture 3 is connected fixing, use fixing end crab-bolt 6 that fixing end steel tank 5 is anchored concrete component 1, reach fixing end integral fastening；Above anchorage style high degree reduces the loss of prestress caused by anchoring.
In the present embodiment, described fixing end standing screw 7 is cylinder, two ends band external screw thread；Described stretching end standing screw 14 is cylinder, two ends band external screw thread；Described tensioning screw rod 16 is cylinder, two ends band external screw thread.
In the present embodiment, described stretching end steel tank 12 has 1 manhole to make tensioning screw rod 16 pass；Described second baffle 19, third gear plate 20 are cuboid, respectively with 1 for installing the manhole of tensioning screw rod 16, are used for fixing jack 21, force transducer 22；Described first baffle plate 18 is cuboid, with 1 for installing the manhole of tensioning screw rod 16, promotes stretching end fixture 9 during for stretch-draw.
Above-mentioned stretching end fixture 9 is connected by tensioning screw rod 17, forms twin screw symmetry tension structure, fiber cloth 2 uniform force application when making stretch-draw, it is to avoid eccentric tension, it is provided that the prestressing force of greater level.
After carrying out stretch-draw, stretching end fixture 9 is anchored in the pre-manufactured hole of concrete component by stretching end fixture crab-bolt 10, and the bottom of stretching end steel tank 12 with stretching end fixture 9 is connected fixing with stretching end standing screw 14, stretching end nut 15, use stretching end crab-bolt 13 that stretching end steel tank 12 is anchored in concrete 1 component, reach stretching end integral fastening, reduce the loss of prestress that anchoring causes.
Stretching end fixture 9 and stretching end steel tank 12 are connected with the first baffle plate 18, second baffle 19, third gear plate 20, jack 21, force transducer 22 by tensioning screw rod 17, and fix with tensioning screw rod nut 17 outside stretching end steel tank 12 and third gear plate 20, so that jack 21, force transducer 22 are fixed.
The present invention provides uniform force application in a kind of stretching process, and fiber cloth will not cause the device of the reinforced concrete member of damage.
A kind of method that apparatus of the present invention are used for self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete is as follows:
Prepare before A, stretch-draw:
1. remove the deterioration concrete such as the peeling treating reinforced concrete member 1 surface, loose, honeycomb, corrosion, expose concrete, and with repair materials, surface reconditioning is smooth；Concrete surface depressed area alignment material fills up smooth, and fracture carries out being in the milk or sealing treatment；
2. concrete component 1 to be reinforced is reserved anchor hole at tension face two ends, and by fixing end crab-bolt 6 and stretching end crab-bolt 13, fixing end steel tank 5 and stretching end steel tank 12 are anchored in concrete component 1 tension face respectively.
3. smearing binding agent in fiber cloth 2 and concrete component 1 contact surface, fixing end smears binding agent on fixture 3 and stretching end fixture 9 bottom surface and concrete component 1 contact surface.
4. fiber cloth 2 two ends clamp with fixing end fixture 3 and stretching end fixture 9 respectively, and utilize fixing end fixture crab-bolt 4 and stretching end fixture bolt 11 to make fixing end fixture 3 and stretching end fixture 9 clamp respectively.
5. fixing end fixture 3 and stretching end fixture 9 are connected with fixing end steel tank 5, stretching end steel tank 12 respectively through 2 fixing end standing screws 7 and 2 stretching end standing screws 14, and by fixing end fixture crab-bolt 4, fixing end fixture 3 being anchored in concrete component 1, the end nut 8 that is simultaneously tightened makes fixing end fixture 3 and fixing end steel tank 5 affixed.
6. by the manhole on tensioning screw rod 16 traverse stretching end steel tank 12, opposite side installs the first baffle plate 18, second baffle 19, third gear plate 20, jack 21 is positioned over the centre of the first baffle plate 18 and second baffle 19, force transducer 22 is positioned over the centre of second baffle 19 and third gear plate 20, screws 2 tensioning screw rod nuts 17.
B, installation jack, force transducer, implement stretch-draw:
1. use jack 21 pushing tow the first baffle plate 18, it is promoted to the inside, drive stretching end fixture 9 to do synchronous shift, to fiber cloth 2 Shi Hanzhang.
2., after stretch-draw is stablized, by fiber cloth 2 pressure viscosity in concrete surface, and pressure is held with sand hill.
3. stretching end fixture 9 stretching end fixture crab-bolt 10 is anchored in the surface pre-manufactured hole of concrete component 1 to be reinforced, and screws stretching end nut 15, makes stretching end fixture 9 anchor.
4. after adhesive curing to be bonded, removing the stretch-draw bloom 18 of stretching end, one layer of anti-corrosive grease is smeared on all of metalwork surface, and whitewashes the 6mm thickness adhesive protective layer as fiber cloth 2.
Claims (10)
- null1. a self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device，It is characterized in that including fiber cloth (2)、Fixing end fixture (3)、Fixing end fixture crab-bolt (4)、Fixing end steel tank (5)、Fixing end crab-bolt (6)、Fixing end standing screw (7)、Fixing end nut (8)、Stretching end fixture (9)、Stretching end fixture crab-bolt (10)、Stretching end fixture bolt (11)、Stretching end steel tank (12)、Stretching end crab-bolt (13)、Stretching end standing screw (14)、Stretching end nut (15)、Tensioning screw rod (16)、Tensioning screw rod nut (17)、First baffle plate (18)、Second baffle (19)、Third gear plate (20)、Jack (21)、Force transducer (22)，Concrete component (1) to be reinforced is reserved anchor hole at tension face two ends，Fixing end steel tank (5) and stretching end steel tank (12) are anchored in concrete component (1) tension face with fixing end crab-bolt (6) and stretching end crab-bolt (13) respectively，Fiber cloth (2) two ends are respectively with fixing end fixture (3) and stretching end fixture (9) clamping，And utilize fixing end fixture crab-bolt (4) and stretching end fixture bolt (11) to make fixing end fixture (3) and stretching end fixture (9) clamping respectively，And fixing end fixture (3) and stretching end fixture (9) hold steel tank (5) respectively through 2 fixing ends standing screw (7) and 2 stretching end standing screws (14) with fixing、Stretching end steel tank (12) connects，And with fixing end fixture crab-bolt (4), fixing end fixture (3) is anchored in concrete component (1)，The terminal bolt (8) that is simultaneously tightened makes fixing end fixture (3) and fixing end steel tank (5) affixed，Jack (21) is positioned between the first baffle plate (18) and second baffle (19)，Force transducer (22) is positioned between second baffle (19) and third gear plate (20)，Tensioning screw rod (16) is then passed through the first baffle plate (18) after the through hole set by stretching end steel tank (12)、Jack (21)、Second baffle (19)、Force transducer (22)、Third gear plate (20)，And the end of tensioning screw rod (16) screws tensioning screw rod nut (17)，By the first baffle plate (18)、Jack (21)、Second baffle (19)、Force transducer (22)、Third gear plate (20) links together，Stretching end fixture (9) stretching end fixture crab-bolt (10) is anchored in the surface pre-manufactured hole of concrete component (1) to be reinforced，And screw stretching end nut (15)，Stretching end fixture (9) is made to have anchored.
- 2. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 1, it is characterized in that: described fiber cloth (2) and the contact surface of concrete component (1) smear binding agent, by fiber cloth (2) pressure viscosity in the surface of concrete component (1), and hold pressure with sand hill, the bottom surface of fixing end fixture (3) and stretching end fixture (9) with the contact surface of concrete component (1) on smear binding agent, the bottom surface pressure viscosity of fixing end fixture (3) and stretching end fixture (9) is in the surface of concrete component (1).
- 3. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 1, it is characterized in that: described 2 stretching end standing screws (14) are each passed through the through hole set by stretching end steel tank (12) both sides and stretching end steel tank (12) and stretching end fixture (9) are linked together by the through hole set by stretching end fixture (9) bottom, stretching end steel tank (12) is additionally provided with another connecting hole, connecting hole set by tensioning screw rod (16) traverse stretching end steel tank (12) and stretching end steel tank (12), first baffle plate (18), second baffle (20), third gear plate (21), jack (21), force transducer (22) connects；Fixing end steel tank (5) anchors to concrete component (1) by fixing end crab-bolt (6), 2 fixing ends standing screw (7) are each passed through fixing end steel tank (5) two side through hole and fixing end steel tank (5) and fixing end fixture (3) are linked together by fixing end through hole set by fixture (3) lower clamp, and fixing end fixture (3) anchors to concrete component (1) by fixing end fixture crab-bolt (4).
- 4. the self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to any one of claims 1 to 3, it is characterized in that: described fixing end fixture (3) includes top and bottom, fixing end fixture (3) is 2 sphenoids with knuckle-tooth face, and fixing end fixture (3) has 6 manholes for installing fixing end fixture crab-bolt (4)；The bottom of fixing end fixture (3) is provided with 2 manholes for connecting fixing end standing screw (7)；Described stretching end fixture (9) includes top and bottom, and stretching end fixture (9) is 2 sphenoids with knuckle-tooth face, and stretching end fixture (9) is provided with 6 for installing stretching end fixture crab-bolt (10) and the manhole of stretching end fixture bolt (11)；The bottom of stretching end fixture (9) is provided with 2 manholes for connecting stretching end standing screw (14).
- 5. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 4, it is characterized in that: described fixing end steel tank (5) is U-shaped body, end face has 6 use fixing end crab-bolt (6) to be anchored in the manhole on concrete component (1), separately has 2 manholes connecting fixing end standing screw (7).
- 6. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 5, it is characterized in that: described stretching end steel tank (12) is U-shaped body, end face has 6 manholes being anchored on concrete component (1) by stretching end crab-bolt (13), separately has 2 manholes connecting stretching end standing screw (14).
- 7. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 6, it is characterised in that: described fixing end standing screw (7) is cylinder, two ends band external screw thread；Described stretching end standing screw (14) is cylinder, two ends band external screw thread；Described tensioning screw rod (16) is cylinder, two ends band external screw thread.
- 8. self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete device according to claim 7, it is characterised in that: described stretching end steel tank (12) has 1 manhole to make tensioning screw rod (16) pass；Described second baffle (19), third gear plate (20) are cuboid, respectively with 1 manhole being used for installing tensioning screw rod (16), are used for fixing jack (21), force transducer (22)；Described first baffle plate (18) is cuboid, with 1 manhole being used for installing tensioning screw rod (16), promotes stretching end fixture (9) during for stretch-draw.
- 9. the method for a self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete, it is characterised in that comprise the following steps:1) remove the deterioration concrete such as the peeling treating reinforced concrete member (1) surface, loose, honeycomb, corrosion, expose concrete, and with repair materials, surface reconditioning is smooth；2) concrete surface depressed area alignment material fills up smooth, and fracture carries out being in the milk or sealing treatment；3) concrete component (1) to be reinforced is reserved anchor hole at tension face two ends, and with fixing end crab-bolt (6) and stretching end crab-bolt (13), fixing end steel tank (5) and stretching end steel tank (12) are anchored in concrete component (1) tension face respectively；4) smearing binding agent in fiber cloth (2) and concrete component (1) contact surface, fixing end smears binding agent on fixture (3) and stretching end fixture (9) bottom surface and concrete component (1) contact surface；5) fixture (3) and stretching end fixture (9) clamping are held with fixing respectively in fiber cloth (2) two ends, and utilize fixing end fixture crab-bolt (4) and stretching end fixture bolt (11) to make respectively to fix end fixture (3) and stretching end fixture (9) clamping；6) fixing end fixture (3) and stretching end fixture (9) are connected with fixing end steel tank (5), stretching end steel tank (12) respectively through 2 fixing ends standing screw (7) and 2 stretching end standing screws (14), and with fixing end fixture crab-bolt (4), fixing end fixture (3) being anchored in concrete component (1), the end nut (8) that is simultaneously tightened makes fixing end fixture (3) and fixing end steel tank (5) affixed；7) by the manhole on tensioning screw rod (16) traverse stretching end steel tank (12), opposite side installs the first baffle plate (18), second baffle (19), third gear plate (20), jack (21) is positioned over the centre of the first baffle plate (18) and second baffle (19), force transducer (22) is positioned over the centre of second baffle (19) and third gear plate (20), screws 2 tensioning screw rod nuts (17)；8) use jack (21) pushing tow the first baffle plate (18), it is promoted to the inside, drive stretching end fixture (9) to do synchronous shift, to fiber cloth (2) Shi Hanzhang；9), after stretch-draw is stablized, by fiber cloth (2) pressure viscosity in concrete surface, and pressure is held with sand hill；10) stretching end fixture (9) stretching end fixture crab-bolt (10) is anchored in the surface pre-manufactured hole of concrete component (1) to be reinforced, and screws stretching end nut (15), makes stretching end fixture (9) anchor.
- 10. the method for self-anchored type pre-stress fibre reinforced composite cloth reinforced concrete according to claim 9; it is characterized in that: after the binding agent adhesive solidification that described step 4) is smeared; remove the stretch-draw bloom (18) of stretching end; one layer of anti-corrosive grease is smeared on all of metalwork surface, and whitewashes the 6mm thickness adhesive protective layer as fiber cloth (2).
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192780A (en) * | 2016-08-31 | 2016-12-07 | 刘平原 | Multiaxis for composite is layered self-locking tensioning equipment |
| CN106285036A (en) * | 2016-09-13 | 2017-01-04 | 广东工业大学 | Pre-stress fibre strengthens Composite patch reinforcement corrosion concrete structure and reinforcement means |
| CN106481092A (en) * | 2016-12-08 | 2017-03-08 | 广东工业大学 | A kind of anti-corrosion bracing means of pre-stressed carbon fiber reinforced steel concrete |
| CN106499213A (en) * | 2016-12-08 | 2017-03-15 | 广东工业大学 | Armored concrete anti-corrosion bracing means |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06322999A (en) * | 1993-05-14 | 1994-11-22 | Tonen Corp | Concrete column |
| CN1970974A (en) * | 2005-11-24 | 2007-05-30 | 同济大学 | Construction process for pretension carbon fiber cloth reinforced concrete beam |
| CN201695706U (en) * | 2010-06-29 | 2011-01-05 | 程东辉 | Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column |
| CN102926551A (en) * | 2012-10-24 | 2013-02-13 | 广东工业大学 | Device and method for reinforcing flexural concrete member |
| CN205677277U (en) * | 2016-04-08 | 2016-11-09 | 广东工业大学 | Self-anchored type pre-stress fibre strengthens composite material cloth reinforced concrete device |
-
2016
- 2016-04-08 CN CN201610215581.XA patent/CN105781140B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06322999A (en) * | 1993-05-14 | 1994-11-22 | Tonen Corp | Concrete column |
| CN1970974A (en) * | 2005-11-24 | 2007-05-30 | 同济大学 | Construction process for pretension carbon fiber cloth reinforced concrete beam |
| CN201695706U (en) * | 2010-06-29 | 2011-01-05 | 程东辉 | Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column |
| CN102926551A (en) * | 2012-10-24 | 2013-02-13 | 广东工业大学 | Device and method for reinforcing flexural concrete member |
| CN205677277U (en) * | 2016-04-08 | 2016-11-09 | 广东工业大学 | Self-anchored type pre-stress fibre strengthens composite material cloth reinforced concrete device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192780A (en) * | 2016-08-31 | 2016-12-07 | 刘平原 | Multiaxis for composite is layered self-locking tensioning equipment |
| CN106192780B (en) * | 2016-08-31 | 2018-06-08 | 刘平原 | Self-locking tensioning equipment is layered for the multiaxis of composite material |
| CN106285036A (en) * | 2016-09-13 | 2017-01-04 | 广东工业大学 | Pre-stress fibre strengthens Composite patch reinforcement corrosion concrete structure and reinforcement means |
| CN106481092A (en) * | 2016-12-08 | 2017-03-08 | 广东工业大学 | A kind of anti-corrosion bracing means of pre-stressed carbon fiber reinforced steel concrete |
| CN106499213A (en) * | 2016-12-08 | 2017-03-15 | 广东工业大学 | Armored concrete anti-corrosion bracing means |
| CN107859348A (en) * | 2017-10-20 | 2018-03-30 | 长安大学 | Fabric positive force system |
| CN107859348B (en) * | 2017-10-20 | 2020-05-05 | 长安大学 | Active force application system for fiber fabric |
| CN109403655A (en) * | 2018-12-11 | 2019-03-01 | 淮海工学院 | Beams of concrete across reinforcement means |
| CN109881591A (en) * | 2019-04-04 | 2019-06-14 | 徐慧云 | The reversed stretch-draw prestressing force anchorage of carbon fiber board |
| CN111155783A (en) * | 2020-01-19 | 2020-05-15 | 河海大学 | Prestressed FRP plate reverse tensioning anchoring assembly and use method thereof |
| CN111155783B (en) * | 2020-01-19 | 2024-02-23 | 河海大学 | Prestressed FRP plate reverse tensioning anchor assembly and application method thereof |
| CN111794546A (en) * | 2020-06-16 | 2020-10-20 | 深圳大学 | Prestress reinforcing device and prestress loading construction method |
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