CN107905126A - A kind of detachable pre-stressed fiber cloth stretching and anchoring device - Google Patents
A kind of detachable pre-stressed fiber cloth stretching and anchoring device Download PDFInfo
- Publication number
- CN107905126A CN107905126A CN201711074438.4A CN201711074438A CN107905126A CN 107905126 A CN107905126 A CN 107905126A CN 201711074438 A CN201711074438 A CN 201711074438A CN 107905126 A CN107905126 A CN 107905126A
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- fiber cloth
- anchor slab
- clamping plate
- ground tackle
- tension ground
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- 239000004744 fabric Substances 0.000 title claims abstract description 143
- 239000000835 fiber Substances 0.000 title claims abstract description 141
- 238000004873 anchoring Methods 0.000 title claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 10
- 239000000084 colloidal system Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000007598 dipping method Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000010008 shearing Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007596 consolidation process Methods 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 6
- 230000035882 stress Effects 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 229920006332 epoxy adhesive Polymers 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 210000003518 stress fiber Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of detachable pre-stressed fiber cloth stretching and anchoring device.The device includes two anchor slabs, two clamping plates, two tension ground tackles, two tensioning screw rods, two anchorage screws and fiber cloth.Winding 2 is enclosed on anchor slab after the gluing of fiber cloth both ends, and anchor slab is fixedly connected with clamping plate by stove bolt, and fiber cloth winds 2 circles on anchor slab and clamping plate.Anchor slab, clamping plate and tension ground tackle are fixedly connected by king-bolt.Tensioning screw rod is penetrated from the tensioning screw hole of tension ground tackle, is tightened tensioning screw rod and is applied prestressing force to fiber cloth.In fiber cloth surface coating, then anchorage screw is worn to the anchorage screw hole in anchor slab.Anchorage screw is synchronously tightened to keep the prestressing force in fiber cloth.Treat that the colloid in fiber cloth cures, unscrew the king-bolt between tension ground tackle and clamping plate, unload tension ground tackle and tensioning screw rod.Apparatus of the present invention consolidation effect is good, and simple structure is easy to operate.Tensioning screw rod and tension ground tackle are dismountable and reuse, cost-effective.
Description
Technical field
The invention belongs to the structural strengthening such as science of bridge building, architectural engineering field, more particularly to a kind of reinforced steel concrete
The detachable pre-stressed fiber cloth stretching and anchoring device of pier stud.
Background technology
Building and bridge pier column are due to the reason such as the local damage of structure, the aging of material so that original component can not
Meet the requirement of bearing capacity, it is necessary to carry out reinforcement and strengthening to it.During reinforcing, by providing lateral confinement power to pier stud, make coagulation
Soil is in three dimension stress state, so as to improve the ultimate bearing capacity and ductility of concrete.At present, common prestressed reinforcement pier stud
Method have prestress steel cuff, steel band, fiber cloth, steel strand wires etc..Relative to traditional reinforcement material, fiber-reinforced composite material
Material（Fiber Reinforced Plastics, abbreviation FRP）High with tensile strength, elasticity modulus is high, corrosion-resistant, good
The advantages that designability and workable work, it is widely applied in steel bar concrete reinforcement.Common FRP material is to concrete
The constraint of component belongs to " passive bound ", and only in the case where concrete fully expands, FRP material just starts to play effect of contraction, deposits
In a degree of Stress resort, the high-strength performance of FRP material is not in full use.Pre-stress FRP cloth reinforcement technique is one
Kind of active reinforcement means, utilizes the high-strength characteristic of FRP so that the concrete column of hoop constraint has the initiative three dimension stress shape
State, improves bearing capacity, shock resistance, energy dissipation capacity, the ductile performance of performance of concrete column confined.
At present, the stretching and anchoring device of pre-stressed fiber cloth cloth reinforced concrete pier stud is mostly permanent, tension ground tackle
Not reproducible utilization, cost are higher.And anchorage is exposed at pier stud surface, not only influencing its durability also has constructional appearance necessarily
Influence.In addition, in common tension ground tackle fibre cloth winding be wound on intermediate plate either on roller bearing when fiber cloth is wider or prestressing force compared with
Greatly, intermediate plate or roller bearing flexural deformation are larger during tensioning so that fiber cloth prestress value does not reach expection.
The content of the invention
It is an object of the invention to provide a kind of detachable pre-stressed fiber cloth stretching and anchoring device.Using the device to fibre
After tieing up cloth stretch-draw anchor, tension ground tackle conveniently can be removed and reused, cost-effective；And pier stud does not have exposed anchor after reinforcing
Tool, does not influence to be reinforced the appearance of pier stud.Tension ground tackle rigidity is sufficiently large, it can be achieved that the larger reinforcing of fiber cloth prestressing force, carries
High stock utilization.
What the present invention was realized in：A kind of detachable pre-stressed fiber cloth stretching and anchoring device, the device include two
Anchor slab, two clamping plates, two tension ground tackles, two tensioning screw rods, two anchorage screws and fiber cloth, wherein, two anchoring spiral shells
Bar and fiber cloth are used to keep prestressing force；Anchor slab is made of the anchor slab anchor head and anchor slab body at both ends, and anchor slab anchor head center is along parallel
An anchorage screw hole is respectively opened in fiber cloth parcel direction, anchor slab opens anchor slab at lower two center perpendicular to fiber cloth direction with it
Mounting hole；Respectively open two tension ground tackle mounting holes in anchor slab mounting hole both sides；Two is perpendicular to fiber cloth direction and anchor above and below clamping plate
Anchor slab mounting hole correspondence position opens clamping plate mounting hole and two tension ground tackle mounting holes with plate, and anchor slab body and clamping plate are along fiber cloth
Direction both ends inverted arc angle is wrapped up, in case it scratches fiber cloth.Tension ground tackle upper and lower ends are opened perpendicular to each correspondence in fiber cloth direction
If two tension ground tackle mounting holes.Tension ground tackle opens up two tensioning screw rod holes along parallel to fiber cloth parcel direction.
The cutting in the range of anchor slab body and clamping plate parcel fiber cloth, slot opening 2mm, groove depth 1mm, clear distance between groove and groove
4mm；Notice that the notch position of anchor slab body and clamping plate tow sides is interlaced during cutting.
Positive and negative in the end of fiber cloth, the anchor slab body of anchor slab and clamping plate smears dipping adhesive glue.By fiber cloth in anchor
2 circles are wound with the anchor slab of plate.Clamping plate is placed on anchor slab, and the anchor slab mounting hole of the two and clamping plate mounting hole are alignd,
The two is fixedly connected by stove bolt through the anchor slab mounting hole on anchor slab with the clamping plate mounting hole on clamping plate；Fiber cloth continue around
2 circle of anchor slab and clamping plate winding, often winds a circle and checks whether fiber cloth is wrapped, do not smear the local coating of dipping adhesive glue.It is right
The other end of fiber cloth repeats above-mentioned anchor slab body and is clamped with clamping plate and circumferential winding step, completes fiber cloth and anchor slab and clamping plate
Connection.
Tension ground tackle is placed on clamping plate and the tension ground tackle mounting hole of the two aligns, king-bolt passes through tensioning anchor
Three is fixedly connected by tool, clamping plate with the anchorage installation hole on anchor slab；, will be with anchor slab, clamping plate and tensioning anchor after colloid curing
Have the fiber cloth that connects and be wrapped in and uniformly brush being reinforced on the reinforcing position of Reinforced Concrete Pier Column of one layer of epoxy adhesive layer.
Two tensioning screw rods are arranged in above and below tension ground tackle in two tensioning screw rod holes respectively.Synchronously tighten two tensioning
Screw rod applies prestressing force to fiber cloth.After the prestressing force for putting on fiber cloth reaches predeterminated level.Dipping glue is filled
Fiber cloth surface, and it is fully infiltrated.Two anchorage screws are arranged in the anchoring spiral shell in the anchor slab anchor head at anchor slab both ends respectively
In rod aperture.Two anchorage screws are synchronously tightened to keep the prestressing force in fiber cloth.After the colloid in fiber cloth cures, unscrew
King-bolt between tension ground tackle and clamping plate, unloads tension ground tackle and tensioning screw rod.
The steel plate uses Q235B grades and above high-quality steel, and wherein anchor slab body and clamping plate plate thickness is 6 millimeters, wide
Spend for 50 millimeters, length is depending on the width of wrapped up in fiber cloth.Tension ground tackle uses aluminium alloy, its thickness is 30 millimeters, wide
Spend for 50 millimeters.Tensioning screw rod and anchorage screw use 12.9 grades of high-strength bolt, its anti-shearing stress levels is
12.9GPa.A diameter of 10 millimeters of tensioning screw rod, a diameter of 16 millimeters of anchorage screw.A diameter of 10 millimeters of king-bolt.It is small
A diameter of 5 millimeters of bolt.
After adopting the above technical scheme, being contrasted with prior art, advantages of the present invention is：（1）Utilize the present invention's
After dismountable pre-stressed fiber cloth stretching and anchoring device is to fiber cloth stretch-draw anchor, tension ground tackle and tensioning screw rod can conveniently be torn open
Remove, reuse, it is cost-effective.And the Reinforced Concrete Pier Column cosmetic variation after reinforcing is little.（2）Carved on anchor slab and clamping plate face
Groove, adds its frictional force between fiber cloth, improves clamping effect of the anchorage to fiber cloth, with being applied during parcel fiber cloth
The measure for smearing dipping adhesive glue is combined, and can effectively avoid the sliding phenomenon in fiber cloth stretching process.（3）Tensioning equipment and anchor
It is fixedly mounted with and puts phase separation, tension ground tackle rigidity is sufficiently large, can avoid when prestressing force is larger that anchor deformation is big in stretching process, makes
Fiber cloth prestress value does not reach the problem of expected.（4）The pre-stressed fiber cloth stretching and anchoring device simple structure, operation side
Just, it is cost-effective.
Brief description of the drawings
Fig. 1 be in the embodiment of the present invention 1 wait reinforce Reinforced Concrete Pier Column be square column when it is prestressed fiber cloth reinforced most
Whole use state diagram.
Fig. 2 is that the pre-stressed fiber cloth in the embodiment of the present invention 1 when reinforcing Reinforced Concrete Pier Column and being square column finally makes
Use state plane figure.
Fig. 3 is prestressed fiber cloth reinforced when reinforcing Reinforced Concrete Pier Column and being square column in the embodiment of the present invention 1
Draw anchoring status schematic diagram.
Fig. 4 is pre-stressed fiber cloth tensioning anchor when reinforcing Reinforced Concrete Pier Column and being square column in the embodiment of the present invention 1
Gu state plane figure.
Fig. 5 be in the embodiment of the present invention 2 wait reinforce Reinforced Concrete Pier Column be cylinder when it is prestressed fiber cloth reinforced most
Whole use state diagram.
Fig. 6 is that the pre-stressed fiber cloth in the embodiment of the present invention 2 when reinforcing Reinforced Concrete Pier Column and being cylinder finally makes
Use state plane figure.
Fig. 7 is that the pre-stressed fiber cloth in the embodiment of the present invention 2 when reinforcing Reinforced Concrete Pier Column and being cylinder finally makes
With state elevation.
Fig. 8 is prestressed fiber cloth reinforced when reinforcing Reinforced Concrete Pier Column and being cylinder in the embodiment of the present invention 2
Draw anchoring status schematic diagram.
Fig. 9 is pre-stressed fiber cloth tensioning anchor when reinforcing Reinforced Concrete Pier Column and being cylinder in the embodiment of the present invention 2
Gu state plane figure.
Figure 10 is the structure diagram of anchor slab and anchorage screw in the embodiment of the present invention.
Figure 11 is the structure diagram of middle clamp plate of the embodiment of the present invention and stove bolt.
Figure 12 is the cross-sectional view of anchor slab body and clamping plate in the embodiment of the present invention.
Figure 13 is the structure diagram of tension ground tackle, tensioning screw rod and king-bolt in the embodiment of the present invention.
Figure 14 is the fiber cloth schematic diagram that anchor slab, clamping plate and tension ground tackle are connected in the embodiment of the present invention 2.
Marked in figure：1- anchor slabs；11- anchor slab anchor heads；12- anchor slab bodies；111- anchorage screws hole；121- anchor slab mounting holes；
122- tension ground tackle mounting holes；2- clamping plates；21- stove bolts；22- notches；23- clamping plate mounting holes；3- tension ground tackles；31- tensioning
Screw hole；32- king-bolts；4- tensioning screw rods；5- anchorage screws；6- fiber cloths；7- reinforced concrete square columns；8- armored concrete
Cylinder.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Fig. 1,2,3,4,10,11,12,13, the present embodiment, to reinforce object, utilizes one kind with reinforced concrete square columns 7
The dismountable pre-stressed fiber cloth stretching and anchoring device of tension ground tackle reinforces it, and the width of fiber cloth 6 is 150mm.Tool
Body is as follows：
A kind of dismountable pre-stressed fiber cloth stretching and anchoring device of tension ground tackle, it is characterised in that the device includes two anchor slabs
1st, two 2, two, clamping plate tensioning screw rods 4 of tension ground tackle 3, two and for keeping prestressed two anchorage screws 5 and fibre
Tie up cloth 6；Anchor slab 1 is made of the anchor slab anchor head 11 and anchor slab body 12 at both ends, 11 center of anchor slab anchor head at 1 both ends of anchor slab along parallel to
Fiber cloth 6 wraps up direction and respectively opens an anchorage screw hole 111, and anchor slab body is about 12 perpendicular to 6 direction of fiber cloth at the center of two
Open anchor slab mounting hole 121；Respectively open two tension ground tackle mounting holes 122 in 121 both sides of anchor slab mounting hole；Clamping plate about 2 two it is vertical
Clamping plate mounting hole 23 is opened in 121 correspondence position of anchor slab mounting hole on 6 direction of fiber cloth and anchor slab body 12 and two tension ground tackles are pacified
Fill hole 122, anchor slab body 12 and clamping plate 2 and wrap up direction both ends inverted arc angle along fiber cloth 6, in case it scratches fiber cloth 6.Tension ground tackle
3 upper and lower ends open up two tension ground tackle mounting holes 122 perpendicular to each correspondence in 6 direction of fiber cloth.Tension ground tackle 3 is along parallel to fibre
Dimension cloth 6 wraps up direction and opens up two tensioning screw rod holes 31.
Cutting in the range of fiber cloth 6, the width of notch 22 2mm, groove depth 1mm, between groove and groove are wrapped up in anchor slab body 12 and clamping plate 2
Clear distance 4mm.Notice that the notch position of 2 tow sides of anchor slab body 12 and clamping plate is interlaced during cutting.
The steel plate uses Q235B grades and above high-quality steel, and wherein anchor slab body 12 and 2 thickness of slab of clamping plate is 6 millimeters, wide
50 millimeters of degree, length is depending on the width of wrapped up in fiber cloth 6.Tension ground tackle 3 uses aluminium alloy, its thickness is 30 millimeters, wide
50 millimeters of degree.Tensioning screw rod 4 and anchorage screw 5 use 12.9 grades of high-strength bolt, its anti-shearing stress levels is
12.9GPa.A diameter of 10 millimeters of tensioning screw rod 4, a diameter of 16 millimeters of anchorage screw 5.A diameter of 10 milli of king-bolt 32
Rice.A diameter of 5 millimeters of stove bolt 21.
Specific reinforcing step is as follows：
（1）Determine the reinforcing position on reinforced concrete square columns 7；With the line of ink marker, on its surface, pop-up need to carry out prestressed carbon cloth
The position range of parcel.Four corners of reinforced concrete square columns 7 are subjected to polishing chamfering with sander.
（2）Polished 7 surface of reinforced concrete square columns, the processing such as filling-up hole.It need to be carried out in reinforced concrete square columns 7 pre-
Stress fiber cloth parcel boundary surface uniformly brushes one layer of epoxy adhesive layer.
（3）Determine the cutting length of fiber cloth 6 and cutting.The girth of column at cutting length=parcel location of fiber cloth 6+
4 times of the girth of clamping plate.
（4）Anchor slab body 12 and 2 surface of clamping plate uniformly apply glue, and 2 are wound on anchor slab body 12 after 6 both ends gluing of fiber cloth
Circle.Clamping plate 2 is placed on anchor slab 1, and the anchor slab mounting hole 121 of the two and clamping plate mounting hole 23 are alignd, stove bolt 21 is worn
The two is fixedly connected by the anchor slab mounting hole 121 crossed on anchor slab 1 with the clamping plate mounting hole 23 on clamping plate 2；Fiber cloth 6 continue around
2 circle of anchor slab 1 and the winding of clamping plate 2, often winds a circle and checks whether fiber cloth 6 is wrapped, do not smear the local coating of dipping adhesive glue.
The above-mentioned anchor slab body 12 of other end repetition to fiber cloth 6 is clamped with clamping plate 2 and circumferential winding step, completes fiber cloth 6 and anchor slab 1
With the connection of clamping plate 2.
（5）Tension ground tackle 3 is placed on clamping plate 2 and the tension ground tackle mounting hole 122 of the two aligns, king-bolt 32 is worn
Cross tension ground tackle 3, three is fixedly connected by clamping plate 2 with the anchorage installation hole 122 on anchor slab 1.
（6）After colloid to be wound in the fiber cloth of anchor slab body 12 and clamping plate 2 cures, will with anchor slab 1, clamping plate 2 and
Draw what the fiber cloth 6 that connects of anchorage 3 was wrapped in that step 2 uniformly brushes one layer of epoxy adhesive layer to be reinforced Reinforced Concrete Pier Column 7
Reinforcing position on.Two tensioning screw rods 4 are arranged in tension ground tackle about 3 in two tensioning screw rod holes 31 respectively.It is synchronous to twist
Tight two tensioning screw rods 4 apply prestressing force to fiber cloth 6.
（7）After the prestressing force for putting on fiber cloth 6 reaches predeterminated level.Dipping glue is filled into 6 surface of fiber cloth,
And it is set fully to infiltrate.Two anchorage screws 5 are arranged in the anchorage screw hole 111 in the anchor slab anchor head 11 at 1 both ends of anchor slab respectively
It is interior.Two anchorage screws 5 are synchronously tightened to keep the prestressing force in fiber cloth 6.
（8）After the colloid in fiber cloth 6 cures, unscrew the king-bolt 32 between tension ground tackle 3 and clamping plate 2, unload and open
Draw anchorage 3 and tensioning screw rod 4.Complete the reinforcing to reinforced concrete square columns 7.
Embodiment 2：
As shown in Fig. 5-14, the present embodiment is reinforcing object with Reinforced Concrete Circular Cylinder 8, dismountable using a kind of tension ground tackle
Pre-stressed fiber cloth stretching and anchoring device reinforces it, and the width of fiber cloth 6 is 150mm.It is specific as follows：
A kind of dismountable pre-stressed fiber cloth stretching and anchoring device of tension ground tackle, it is characterised in that the device includes two anchor slabs
1st, two 2, two, clamping plate tensioning screw rods 4 of tension ground tackle 3, two and for keeping prestressed two anchorage screws 5 and fibre
Tie up cloth 6；Anchor slab 1 is made of the anchor slab anchor head 11 and anchor slab body 12 at both ends, 11 center of anchor slab anchor head at 1 both ends of anchor slab along parallel to
Fiber cloth 6 wraps up direction and respectively opens an anchorage screw hole 111, and anchor slab body is about 12 perpendicular to 6 direction of fiber cloth at the center of two
Open anchor slab mounting hole 121；Respectively open two tension ground tackle mounting holes 122 in 121 both sides of anchor slab mounting hole；Clamping plate about 2 two it is vertical
Clamping plate mounting hole 23 is opened in 121 correspondence position of anchor slab mounting hole on 6 direction of fiber cloth and anchor slab body 12 and two tension ground tackles are pacified
Fill hole 122, anchor slab body 12 and clamping plate 2 and wrap up direction both ends inverted arc angle along fiber cloth 6, in case it scratches fiber cloth 6.Tension ground tackle
3 upper and lower ends open up two tension ground tackle mounting holes 122 perpendicular to each correspondence in 6 direction of fiber cloth.Tension ground tackle 3 is along parallel to fibre
Dimension cloth 6 wraps up direction and opens up two tensioning screw rod holes 31.
Cutting in the range of fiber cloth 6, the width of notch 22 2mm, groove depth 1mm, between groove and groove are wrapped up in anchor slab body 12 and clamping plate 2
Clear distance 4mm.Notice that the notch position of 2 tow sides of anchor slab body 12 and clamping plate is interlaced during cutting.
The steel plate uses Q235B grades and above high-quality steel, and wherein anchor slab body 12 and 2 thickness of slab of clamping plate is 6 millimeters, wide
50 millimeters of degree, length is depending on the width of wrapped up in fiber cloth 6.Tension ground tackle (3) uses aluminium alloy, its thickness is 30 millimeters,
50 millimeters of width.Tensioning screw rod 4 and anchorage screw 5 use 12.9 grades of high-strength bolt, its anti-shearing stress levels is
12.9GPa.A diameter of 10 millimeters of tensioning screw rod 4, a diameter of 16 millimeters of anchorage screw 5.A diameter of 10 milli of king-bolt 32
Rice.A diameter of 5 millimeters of stove bolt 21.
Specific reinforcing step is as follows：
（1）Polished 8 surface of Reinforced Concrete Circular Cylinder, the processing such as filling-up hole.Prestressing force need to be carried out in Reinforced Concrete Circular Cylinder 8
Fiber cloth parcel boundary surface uniformly brushes one layer of epoxy adhesive layer.
（2）Determine the cutting length of fiber cloth 6 and cutting.The girth of column at cutting length=parcel location of fiber cloth 6+
4 times of the girth of clamping plate.
（3）Anchor slab body 12 and 2 surface of clamping plate uniformly apply glue, and 2 are wound on anchor slab body 12 after 6 both ends gluing of fiber cloth
Circle.Clamping plate 2 is placed on anchor slab 1, and the anchor slab mounting hole 121 of the two and clamping plate mounting hole 23 are alignd, stove bolt 21 is worn
The two is fixedly connected by the anchor slab mounting hole 121 crossed on anchor slab 1 with the clamping plate mounting hole 23 on clamping plate 2；Fiber cloth 6 continue around
2 circle of anchor slab 1 and the winding of clamping plate 2, often winds a circle and checks whether fiber cloth 6 is wrapped, do not smear the local coating of dipping adhesive glue.
The above-mentioned anchor slab body 12 of other end repetition to fiber cloth 6 is clamped with clamping plate 2 and circumferential winding step, completes fiber cloth 6 and anchor slab 1
With the connection of clamping plate 2；
（4）Tension ground tackle 3 is placed on clamping plate 2 and the tension ground tackle mounting hole 122 of the two aligns, king-bolt 32, which passes through, to be opened
Anchorage 3, clamping plate 2 is drawn to be fixedly connected with three with the anchorage installation hole 122 on anchor slab 1.
（5）After colloid to be wound in the fiber cloth of anchor slab body 12 and clamping plate 2 cures, will with anchor slab 1, clamping plate 2 and
Draw what the fiber cloth 6 that connects of anchorage 3 was wrapped in that step 1 uniformly brushes one layer of epoxy adhesive layer to be reinforced Reinforced Concrete Pier Column 8
Reinforcing position on.Two tensioning screw rods 4 are arranged in tension ground tackle about 3 in two tensioning screw rod holes 31 respectively.It is synchronous to twist
Tight two tensioning screw rods 4 apply prestressing force to fiber cloth (6).
（6）After the prestressing force for putting on fiber cloth 6 reaches predeterminated level.Dipping glue is filled into 6 surface of fiber cloth,
And it is set fully to infiltrate.Two anchorage screws 5 are arranged in the anchorage screw hole 111 in the anchor slab anchor head 11 at 1 both ends of anchor slab respectively
It is interior.Two anchorage screws 5 are synchronously tightened to keep the prestressing force in fiber cloth 6.
（7）After the colloid in fiber cloth 6 cures, unscrew the king-bolt 32 between tension ground tackle 3 and clamping plate 2, unload and open
Draw anchorage 3 and tensioning screw rod 4.Complete the reinforcing to Reinforced Concrete Circular Cylinder 8.
Specific embodiment described herein is only to spirit explanation for example of the invention.The technical field of the invention
Technical staff some modifications or supplement can be made to described specific embodiment or is substituted in a similar way, but can't
Deviate the spirit or beyond the scope of the appended claims of the present invention.
Claims (1)
- A kind of 1. detachable pre-stressed fiber cloth stretching and anchoring device, it is characterised in that the device include two anchor slabs (1), two Clamping plate (2), two tension ground tackles (3), two tensioning screw rods (4), two anchorage screws (5) and fiber cloth (6), wherein, two Anchorage screw (5) and fiber cloth (6) are used to keep prestressing force；Anchor slab (1) by both ends anchor slab anchor head (11) and anchor slab body (12) An anchorage screw hole is respectively opened in composition, anchor slab anchor head (11) center at anchor slab (1) both ends along parallel to fiber cloth (6) parcel direction (111), anchor slab body (12) opens anchor slab mounting hole (121) at the center of two perpendicular to fiber cloth (6) direction up and down；Anchor slab mounting hole (121) two tension ground tackle mounting holes (122) are respectively opened in both sides；Clamping plate (2) up and down two perpendicular to fiber cloth (6) direction and anchor slab Anchor slab mounting hole (121) correspondence position opens clamping plate mounting hole (23) and two tension ground tackle mounting holes (122), anchor slab on body (12) Body (12) and clamping plate (2) wrap up direction both ends inverted arc angle along fiber cloth (6), in case it scratches fiber cloth (6)；Tension ground tackle (3) Upper and lower ends open up two tension ground tackle mounting holes (122) perpendicular to each correspondence in fiber cloth (6) direction；Tension ground tackle (3) is along flat Row opens up two tensioning screw rod holes (31) in fiber cloth (6) parcel direction；The cutting in the range of anchor slab body (12) and clamping plate (2) parcel fiber cloth (6), notch (22) width 2mm, groove depth 1mm, groove and groove Between clear distance 4mm；Notice that the notch position of anchor slab body (12) and clamping plate (2) tow sides is interlaced during cutting；Positive and negative in the end of fiber cloth (6), the anchor slab body (12) of anchor slab (1) and clamping plate (2) smears dipping adhesive glue；By fibre Wei Bu (6) winds 2 circles on the anchor slab body (12) of anchor slab (1)；Clamping plate (2) is placed on anchor slab (1), and by the anchor slab of the two Mounting hole (121) and clamping plate mounting hole (23) alignment, stove bolt (21) is through the anchor slab mounting hole (121) on anchor slab (1) and presss from both sides The two is fixedly connected by the clamping plate mounting hole (23) on plate (2)；Fiber cloth (6) continues around anchor slab (1) and clamping plate (2) winding 2 Circle, often winds a circle and checks whether fiber cloth (6) is wrapped, do not smear the local coating of dipping adhesive glue；To the another of fiber cloth (6) One end repeats above-mentioned anchor slab body (12) and clamping plate (2) clamping and circumferential winding step, completes fiber cloth (6) and anchor slab (1) and folder The connection of plate (2)；Tension ground tackle (3) is placed on clamping plate (2) and the tension ground tackle mounting hole (122) of the two aligns, king-bolt (32) Three is fixedly connected through the anchorage installation hole (122) on tension ground tackle (3), clamping plate (2) and anchor slab (1)；Treat that colloid cures Afterwards, the fiber cloth (6) connected with anchor slab (1), clamping plate (2) and tension ground tackle (3) is wrapped in and uniformly brushes one layer of epoxy glue Layer is reinforced on the reinforcing position of Reinforced Concrete Pier Column；Two tensioning screw rods (4) are arranged in tension ground tackle (3) respectively, and two tensioning screw rod holes (31) are interior up and down；Synchronously tighten two Root tensioning screw rod (4) applies prestressing force to fiber cloth (6)；After the prestressing force for putting on fiber cloth (6) reaches predeterminated level；Will Dipping glue fills fiber cloth (6) surface, and it is fully infiltrated；Two anchorage screws (5) are arranged in anchor slab (1) two respectively In anchorage screw hole (111) in the anchor slab anchor head (11) at end；Two anchorage screws (5) are synchronously tightened to keep fiber cloth (6) On prestressing force；After the colloid in fiber cloth (6) cures, unscrew the king-bolt between tension ground tackle (3) and clamping plate (2) (32), tension ground tackle (3) and tensioning screw rod (4) are unloaded；The steel plate uses Q235B grades and above high-quality steel, and wherein anchor slab body (12) and clamping plate (2) plate thickness is 6 millimeters, Width is 50 millimeters, and length is depending on the width of wrapped up in fiber cloth (6)；Tension ground tackle (3) uses aluminium alloy, its thickness is 30 Millimeter, width are 50 millimeters；Tensioning screw rod (4) and anchorage screw (5) use 12.9 grades of high-strength bolt, its shearing resistance shearing stress Grade is 12.9GPa；A diameter of 10 millimeters of tensioning screw rod (4), a diameter of 16 millimeters of anchorage screw (5)；King-bolt (32) A diameter of 10 millimeters；A diameter of 5 millimeters of stove bolt (21).
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| CN201711074438.4A CN107905126B (en) | 2017-11-05 | 2017-11-05 | Detachable prestressed fiber cloth tensioning and anchoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711074438.4A CN107905126B (en) | 2017-11-05 | 2017-11-05 | Detachable prestressed fiber cloth tensioning and anchoring device |
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| CN107905126A true CN107905126A (en) | 2018-04-13 |
| CN107905126B CN107905126B (en) | 2024-02-06 |
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| CN108343261A (en) * | 2018-05-03 | 2018-07-31 | 桂林理工大学 | A kind of anchoring process and anchor structure of carbon fiber board |
| CN111550078A (en) * | 2020-06-10 | 2020-08-18 | 福州大学 | Pre-tensioned fiber cloth reinforcing device and construction method |
| CN111561175A (en) * | 2020-05-27 | 2020-08-21 | 上海标架建筑科技有限公司 | Prestress underpinning static force cutting and column pulling construction process |
| CN113882705A (en) * | 2021-09-24 | 2022-01-04 | 北京工业大学 | Reinforced structure of reinforced concrete shear wall |
| CN114808767A (en) * | 2022-05-19 | 2022-07-29 | 安徽省交通控股集团有限公司 | Steel wire rope hoop prestress construction method |
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| CN104895251A (en) * | 2014-03-04 | 2015-09-09 | 五邑大学 | Wraparound type waveform anchor for fiber sheets and pre-tensioning method thereof |
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| CN108343261A (en) * | 2018-05-03 | 2018-07-31 | 桂林理工大学 | A kind of anchoring process and anchor structure of carbon fiber board |
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| CN111561175B (en) * | 2020-05-27 | 2021-12-14 | 上海标架建筑科技有限公司 | Prestress underpinning static force cutting and column pulling construction process |
| CN111550078A (en) * | 2020-06-10 | 2020-08-18 | 福州大学 | Pre-tensioned fiber cloth reinforcing device and construction method |
| CN113882705A (en) * | 2021-09-24 | 2022-01-04 | 北京工业大学 | Reinforced structure of reinforced concrete shear wall |
| CN113882705B (en) * | 2021-09-24 | 2023-01-20 | 北京工业大学 | Reinforced structure of reinforced concrete shear wall |
| CN114808767A (en) * | 2022-05-19 | 2022-07-29 | 安徽省交通控股集团有限公司 | Steel wire rope hoop prestress construction method |
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| CN107905126B (en) | 2024-02-06 |
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Effective date of registration: 20240522 Address after: No. 16-6-3 Shengda Yizhi Road, Saida Industrial Park, Wangwenzhuang Town, Xiqing District, Tianjin, 300000 Patentee after: Tianjin Weimu prestressed machinery Co.,Ltd. Country or region after: China Address before: 541004 the Guangxi Zhuang Autonomous Region Guilin City Seven Star District Building Road No. 12 Patentee before: GUILIN University OF TECHNOLOGY Country or region before: China |