CN105257012B - Structure bracket after power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means and reinforcing - Google Patents
Structure bracket after power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means and reinforcing Download PDFInfo
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- CN105257012B CN105257012B CN201510518152.5A CN201510518152A CN105257012B CN 105257012 B CN105257012 B CN 105257012B CN 201510518152 A CN201510518152 A CN 201510518152A CN 105257012 B CN105257012 B CN 105257012B
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Abstract
Structure bracket after power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means and reinforcing of the invention, wherein reinforcement means includes: the crack Step 1: repairing power transmission and transformation steel reinforced concrete structure bracket；Step 2: being repaired to the breakage of the power transmission and transformation steel reinforced concrete structure bracket；Step 3: being reinforced using aramid fiber enhances the power transmission and transformation steel reinforced concrete structure bracket；Step 4: utilizing fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket.The outer surface of structure bracket is provided with fabric and is attached at the dipping protection glue-line on the surface of fabric after reinforcing of the invention.The technical scheme is that directly implementing reinforcement and strengthening protection to high voltage power transmission and transforming steel reinforced concrete structure bracket at the scene, it is made to restore safety, using the technical solution of function and durability.The technologies such as it has used aramid fiber reinforcing, macromolecule glued crack, the old and new's material combines, high strength micro expansion material/polymer mortar repairing, high-molecular fabric film protect, realize online " recovery ", reinforcement or the enhancing to various damaged form high-voltage fence structure brackets.
Description
Technical field
/ the reinforcement technique of structures is built the present invention relates to existing, more particularly to a kind of power transmission and transformation steel reinforced concrete structure bracket aramid fiber
Structure bracket after fiber reinforcing method and reinforcing.
Background technique
China has a vast territory, and the electric load in many areas is mainly based on industrial load.The Operation of Electric Systems time
Increase, it is the long term of the harmful substances such as acid, alkali, salt that steel, chemical company are discharged in region and freeze thawing, charing, old
The destruction that change, temperature alternating, salt lose makes a large amount of power transmission and transformation steel reinforced concrete structure bracket agings in electric system, burn into cracking, peels off, drum
Packet, steel bar corrosion, breakage is extremely serious, and concrete chip off-falling, which is all directly pounded, after some structure brackets are damaged is making an inspection tour and grasping
Make on the safety cap of personnel, some structure bracket destructions ramp up, and seriously threaten the safe and stable operation of power transformating and supplying facility.Together
When, some areas need to improve under conditions of not influencing existing power grid and operating normally existing due to the rapid growth of power load
There is the transmission capacity of power grid, such as by strengthening reconstruction electric network composition basis, enhancing structure support intensity etc. to realize above-mentioned purpose.
Common power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means includes being replaced at the scene to associated components, this
One method needs large area, prolonged power failure, seriously affects the normal production order；Followed by costly, direct economy damage
Lose larger, therefore this method is difficult to use in actual operation.
Summary of the invention
It is not needed the object of the present invention is to provide one kind or needs to have a power failure less, do not influence operation of power networks, while expense is lower
Efficient power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means and reinforce after structure bracket.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, comprising:
Step 1: the crack of repairing power transmission and transformation steel reinforced concrete structure bracket；
Step 2: being repaired to the breakage of the power transmission and transformation steel reinforced concrete structure bracket；
Step 3: being reinforced using aramid fiber enhances the power transmission and transformation steel reinforced concrete structure bracket；
Step 4: utilizing fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for grouting:
Determine the purpose and target of grouting；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up, and the joint seal slot of V or U-shaped is opened at crack openings；
Sealant, bonded adhesives are modulated respectively；
Modulation prepares grouting slurry material used；
Select one of following methods setting grout nipple: crack biggish for depth according to the depth in crack, along to
The sealing in the crack of grouting drills according to a fixed spacing, and dust and residue in cleaning eye clear up the dirt in crack to be in the milk
Grout nipple is arranged in the opening in the hole and hole in dirt；Crack lesser for depth, the sealing along crack to be in the milk are pressed
Filling point is applied according to fixed spacing mark, cleaning fills point to apply as crack two sides sealing surface in the range of the center of circle, 15mm-25mm radius
Dust, residue, smooth sealing clears up the dirt in crack to be in the milk, it is described apply to fill point sticky and be sticked set grout nipple；
It is sealed using sealant counterincision sealing, and fixed grout nipple；
It is cleaned inside fracture, and is blown into air, keep crack internally dry；
Slurry material is poured into the inside in crack by the grout nipple, and the slurry material is closed in crack；
It drills at crack openings, sampling checks grouting quality, while removing grout nipple.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for edge seam:
Determine the purpose and target of edge seam；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up；
The edge for modulating ungauged regions or microdilatancy stitches material,
Air is cleaned and be blown into inside fracture, keeps crack internally dry；
Edge seam material is injected or filled in the inside in crack, and edge seam material is closed in crack.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for infiltration:
Determine the purpose and target of infiltration；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up；
Modulate penetration material；
To the inside instillation penetration material in crack, penetrate into penetration material in crack.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described to the power transmission and transformation steel reinforced concrete structure
The breakage of bracket carries out repairing
Determine repairing purpose and target call；
The damaged degree of the power transmission and transformation steel reinforced concrete structure bracket is checked, the damaged range of each breakage is marked；
The hollowing of breakage, bulge, fragment, damaged piece and low-intensity material are cut, and to the reinforcing bar that breakage exposes
Derusting carries out chemical cleaning to the basal plane of breakage；
Configuration concrete interface agent,
Configure high strength micro expansion material or polymer mortar；
Check that breakage needs the intensity of washcoat；
The uniform painted concrete interfacial agents of basal plane, coverage rate 100%；
Pressure is carried out to breakage using high strength micro expansion material or polymer mortar and smears or pour flat, repairing, levelling, makes to repair
Locate smooth, recovery structure and component original contoured surface.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described reinforced using aramid fiber is increased
The power transmission and transformation steel reinforced concrete structure bracket includes: by force
Determine the purpose and target call for pasting aramid fiber；
Determination need to paste the position of aramid fiber and be identified, setting-out；
The surface of the concrete or steel of pasting position is repaired, is levelling, polishing, chemical cleaning；
Primer, dipping glue is prepared in situ；
Prepare size and up-to-standard aramid fiber；
In concrete surface or steel surface roller coating primer；
Aramid fiber is pasted in concrete surface or steel surface；
Roller coating impregnates glue on aramid fiber lateral surface；
Aramid fiber lateral surface is arranged, gummosis cleaning.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described to utilize fabric reinforcement, protection institute
Stating power transmission and transformation steel reinforced concrete structure bracket includes:
Determine the purpose of fabric reinforcement and the range of fabric reinforcement；
To cleaning at basal plane, dust, residue, dirt, the grease of basal plane are cleared up；
To ruggedness test, uniformity testing is carried out at basal plane, qualified progress next step is examined, it is unqualified then broken to basal plane
Secondary cleaning or repairing are carried out at damage, the secondary cleaning is the cleaning lesser material of basal plane breakage intensity；
Fabric cuts, examines；
In basal plane breakage brushing fabric primer, pave on fabric primer the fabric in certain sequence, keeps fabric viscous
It is affixed on basal plane；
It sprayed in certain sequence in the outer surface for the fabric being pasted on basal plane, brush dipping protective rubber, make to be pasted on basal plane
On fabric it is smooth, smooth.
Structure bracket after reinforcing of the invention, the outer surface for reinforcing after-poppet are provided with fabric and are attached at fabric
The dipping on surface protects glue-line.
Structure bracket after reinforcing of the invention, wherein structure bracket includes annular framework column after the reinforcing, the annular structure
The outer surface for erecting column is successively pasted with the first aramid fiber layer, the second aramid fiber layer, the second aramid fiber layer it is outer
It encloses and is pasted with aramid fiber hoop, the aramid fiber hoop surrounds the annular framework column, the aramid fiber hoop
Outer surface is pasted with fabric and is attached at the dipping protection glue-line on the surface of fabric.
Structure bracket after reinforcing of the invention, wherein structure bracket includes T section crossbeam, the T section after the reinforcing
The periphery of crossbeam is pasted with edge of a wing side longitudinal direction aramid fiber and web bottom surface longitudinal direction aramid fiber, edge of a wing side longitudinal direction aramid fiber
Fiber and web bottom surface longitudinal direction aramid fiber periphery are provided with U-shaped aramid fiber hoop, the periphery patch of the U-shaped aramid fiber hoop
With aramid fiber press strip, the periphery of the aramid fiber press strip be pasted with fabric and be attached at the surface of fabric dipping it is anti-
Protect glue-line.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention be it is a kind of under few power failure or no cut-off condition,
Reinforcement and strengthening protection directly is implemented to high voltage power transmission and transforming steel reinforced concrete structure bracket at the scene, it is made to restore safety, use function and resistance to
The technical solution of long property.It has used aramid fiber reinforcing, macromolecule glued crack, the combination of the old and new's material, high strength micro expansion material
The technologies such as material/polymer mortar repairing, the protection of high-molecular fabric film are realized to various damaged form high-voltage fence structure brackets
" recovery ", reinforcement or enhancing online.Structure bracket each section even intensity after reinforcing of the invention, the service life is longer.
Detailed description of the invention
Fig. 1 is the processing step schematic diagram using the crack of the method repairing power transmission and transformation steel reinforced concrete structure bracket of grouting；
Fig. 2 is the processing step schematic diagram repaired to the breakage of power transmission and transformation steel reinforced concrete structure bracket；
Fig. 3 is that the processing step schematic diagram for enhancing the power transmission and transformation steel reinforced concrete structure bracket is reinforced using aramid fiber；
Fig. 4 is the processing step schematic diagram using fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket；
After reinforcing of the Fig. 5 to carry out repairing reinforcement using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention
The structural schematic diagram of the annular framework column of the embodiment one of structure bracket；
Fig. 6 is the A partial enlarged view of Fig. 5；
After reinforcing of the Fig. 7 to carry out repairing reinforcement using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention
The structural schematic diagram of the T section crossbeam of the embodiment two of structure bracket；
After reinforcing of the Fig. 8 to carry out repairing reinforcement using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention
The structural schematic diagram of the A type truss column of the embodiment three of structure bracket.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, comprising:
Step 1: the crack of repairing power transmission and transformation steel reinforced concrete structure bracket；
Step 2: being repaired to the breakage of the power transmission and transformation steel reinforced concrete structure bracket；
Step 3: being reinforced using aramid fiber enhances the power transmission and transformation steel reinforced concrete structure bracket；
Step 4: utilizing fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for grouting:
Determine the purpose and target of grouting；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up, and the joint seal slot of V or U-shaped is opened at crack openings；
Sealant, bonded adhesives are modulated respectively；
Modulation prepares grouting slurry material used；
Select one of following methods setting grout nipple: crack biggish for depth according to the depth in crack, along to
The sealing in the crack of grouting drills according to a fixed spacing, and dust and residue in cleaning eye clear up the dirt in crack to be in the milk
Grout nipple is arranged in the opening in the hole and hole in dirt；Crack lesser for depth, the sealing along crack to be in the milk are pressed
Filling point is applied according to fixed spacing mark, cleaning fills point to apply as crack two sides sealing surface in the range of the center of circle, 15mm-25mm radius
Dust, residue, smooth sealing clears up the dirt in crack to be in the milk, it is described apply to fill point sticky and be sticked set grout nipple；
It is sealed using sealant counterincision sealing, and fixed grout nipple；
It is cleaned inside fracture, and is blown into air, keep crack internally dry；
Slurry material is poured into the inside in crack by the grout nipple, and the slurry material is closed in crack；
It drills at crack openings, sampling checks grouting quality, while removing grout nipple.
The biggish crack of depth refers to that the depth in crack is greater than 1/3 of minimum dimension in three sizes of component length.
The lesser crack of depth refers to that the depth in crack is less than or equal to minimum dimension in three sizes of component length
1/3.
When counterincision sealing is sealed, for wider or deeper crack, above-mentioned grout groove can use, in above-mentioned grouting
Instill sealant or ungauged regions edge seam material in slot or the edge of microdilatancy stitch material, by sealant or ungauged regions edge seam material or
The edge seam material of microdilatancy seals crack mouthful.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for edge seam:
Determine the purpose and target of edge seam；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up；
The edge for modulating ungauged regions or microdilatancy stitches material,
Air is cleaned and be blown into inside fracture, keeps crack internally dry；
Edge seam material is injected or filled in the inside in crack, and edge seam material is closed in crack.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein the repairing power transmission and transformation steel reinforced concrete structure branch
The crack of frame is specifically included using the method for infiltration:
Determine the purpose and target of infiltration；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up；
Modulate penetration material；
To the inside instillation penetration material in crack, penetrate into penetration material in crack.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described to the power transmission and transformation steel reinforced concrete structure
The breakage of bracket carries out repairing
Determine repairing purpose and target call；
The damaged degree of the power transmission and transformation steel reinforced concrete structure bracket is checked, the damaged range of each breakage is marked；
The hollowing of breakage, bulge, fragment, damaged piece and low-intensity material are cut, and to the reinforcing bar that breakage exposes
Derusting carries out chemical cleaning to the basal plane of breakage；
Configuration concrete interface agent,
Configure high strength micro expansion material or polymer mortar；
Check that breakage needs the intensity of washcoat；
The uniform painted concrete interfacial agents of basal plane, coverage rate 100%；
Pressure is carried out to breakage using high strength micro expansion material or polymer mortar and smears or pour flat, repairing, levelling, makes to repair
Locate smooth, recovery structure and component original contoured surface.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described reinforced using aramid fiber is increased
The power transmission and transformation steel reinforced concrete structure bracket includes: by force
Determine the purpose and target call for pasting aramid fiber；
Determination need to paste the position of aramid fiber and be identified, setting-out；
The surface of the concrete or steel of pasting position is repaired, is levelling, polishing, chemical cleaning；
Primer, dipping glue is prepared in situ；
Prepare size and up-to-standard aramid fiber；
In concrete surface or steel surface roller coating primer；
Aramid fiber is pasted in concrete surface or steel surface；
Roller coating impregnates glue on aramid fiber lateral surface；
Aramid fiber lateral surface is arranged, gummosis cleaning.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein described to utilize fabric reinforcement, protection institute
Stating power transmission and transformation steel reinforced concrete structure bracket includes:
Determine the purpose of fabric reinforcement and the range of fabric reinforcement；
To cleaning at basal plane, dust, residue, dirt, the grease of basal plane are cleared up；
To ruggedness test, uniformity testing is carried out at basal plane, qualified progress next step is examined, it is unqualified then broken to basal plane
Secondary cleaning or repairing are carried out at damage, the secondary cleaning is the cleaning lesser material of basal plane breakage intensity；
Fabric cuts, examines；
In basal plane breakage brushing fabric primer, pave on fabric primer the fabric in certain sequence, keeps fabric viscous
It is affixed on basal plane；
It sprayed in certain sequence in the outer surface for the fabric being pasted on basal plane, brush dipping protective rubber, make to be pasted on basal plane
On fabric it is smooth, smooth.
Structure bracket after reinforcing of the invention, the outer surface for reinforcing after-poppet are provided with fabric and are attached at fabric
The dipping on surface protects glue-line；
The comprehensive inspection and inspection of fabric quality, function.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein repair defeated change using the method for grouting
The crack of electric steel reinforced concrete structure bracket specially carries out structure bracket using GE macromolecule grouting material, shaft tower crack (longitudinal, circumferential) fills
Slurry can eliminate longitudinal/circumferential crack to the cutting damage of structure bracket, restore globality, recovery and the raising of structure timbering material
Intensity, the rigidity of structure bracket；It prevents moisture and pernicious gas from entering, prevents or slow down charing, burn into freeze-thaw damage.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein using concrete interface agent to described
The breakage of power transmission and transformation steel reinforced concrete structure bracket, which is repaired, specifically utilizes interface cohesion agent, high strength micro expansion material, high strength polymer
Mortar, at the various bulges of repairing structure bracket, peeling, hollowing, honeycomb, hole and reinforcing steel bars exposed, not only can ensure that footing with
Ontology is combined closely co-operation, and is combined with outsourcing tensile materials, and adjustable internal stress makes footing and ontology
Coaction；The weakening to structure bracket cross section such as peeling, chip off-falling, hollowing is eliminated, restores the integrality of structure bracket, restores and improve
The integral strength of structure bracket, rigidity are eliminated internal stress and are concentrated, give full play to the function of each section material.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein reinforced using aramid fiber described defeated
Power transformation steel reinforced concrete structure bracket, physical and mechanical property specifically excellent using aramid fiber, develops the bottom of aramid fiber reinforcing
Glue and dipping glue and alignment material are insufficient and because reinforcing bar is not caused by corrosion using aramid fiber supplement structure bracket tensile materials
Foot, or the compression strength of structure bracket concrete is improved, or even can substitute and replace structure bracket steel using arrangement form appropriate
Boxing mouth, effect is very ideal, and moreover, it, which also eliminates to reinforce using other tensile materials, irradiates aging vulnerable to ultraviolet light
With the disadvantage easy to oxidize under forceful electric power field action got rusty；Structure bracket is reinforced using aramid fiber, structure bracket can be greatlyd improve
Various strength and stiffness, and do not increase the self weight of structure bracket, delay the aging and charing of structure bracket.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein utilize power transmission and transformation described in fabric reinforcement
Steel reinforced concrete structure bracket is specifically the actual operating mode for combining high voltage power transmission and transforming steel reinforced concrete structure bracket, the height of screening and optimization of C/C composites exploitation
It is anti-directly to make fabric progress structure bracket all or part surface at the scene for molecule coating and the matched fabric of selection on structure bracket
Shield, can obstruct pernicious gas and moisture enters structure internal stent and allows moisture outlet, can thus terminate the old of structure bracket
Change and charing and Frozen-thawed cycled destroy, while gradually restoring the partial intensities of concrete, make structure bracket each section even intensity
Change, service life homogenization.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention, wherein Step 1: Step 2: Step 3: step
Rapid four be not the simple superposition of four kinds of methods, and which constitute an organic wholes, Step 1: step 2 makes structure bracket by discrete
Body becomes non-individual body, establishes basis for subsequent reinforcing, and step 3 then greatlys improve the various strength and stiffness of structure bracket, and
The deformation of structure bracket is constrained, step 4 gradually restores the intensity of concrete, makes structure bracket each section even intensity.
Structure bracket after reinforcing of the invention, the outer surface of structure bracket is provided with fabric and is attached at fabric after the reinforcing
Surface dipping protect glue-line.
Structure bracket after reinforcing of the invention, wherein the fabric is viscous by primer layer and the power transmission and transformation steel reinforced concrete structure bracket
Knot is together.
The material of fabric is preferred disorderly to fabric (cloth or fiber).
The material of the higher bonded adhesives of material preferred intensity or interface glue of primer layer, dipping protection glue-line is suitable for knot
Structure or the protective materials (such as epoxy resin) for constructing local environment.
Embodiment one
As shown in Figure 5, Figure 6, repairing is carried out using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention to add
Strong power transmission and transformation steel reinforced concrete structure bracket, obtains the embodiment one of structure bracket after reinforcing of the invention.
Above-mentioned power transmission and transformation steel reinforced concrete structure bracket includes annular framework column 1, and the crack on annular 1 surface of framework column is by slurry material 20
The breakage of filling, surface is repaired by concrete interface agent 30, high strength micro expansion material or polymer mortar 40.
Its keypoint part is reinforced using aramid fiber, sticks fabric in its outer surface.Annular framework column 1
Outer surface is successively pasted with the first aramid fiber layer 2, the second aramid fiber layer 3, and the periphery of the second aramid fiber layer 3 is pasted with virtue
Synthetic fibre fiber hoop 4, aramid fiber hoop 4 surround annular framework column 1, and the outer surface of aramid fiber hoop 4 is pasted with fabric 10
And it is attached at the dipping protection glue-line 11 on the surface of fabric 10.
Embodiment two
As shown in fig. 7, carrying out repairing reinforcement using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention
Power transmission and transformation steel reinforced concrete structure bracket, obtains the embodiment two of structure bracket after reinforcing of the invention.
Structure bracket includes T section crossbeam 21 after above-mentioned reinforcing, and the crack on the surface of T section crossbeam 21 is filled out by slurry material 20
It fills, the breakage on surface is repaired by concrete interface agent 30, high strength micro expansion material or polymer mortar 40.
The periphery of T section crossbeam 21 is pasted with edge of a wing side longitudinal direction aramid fiber 27 and web bottom surface longitudinal direction aramid fiber is fine
Dimension 28, edge of a wing side longitudinal direction aramid fiber 27 and 28 periphery of web bottom surface longitudinal direction aramid fiber are provided with U-shaped aramid fiber hoop
22, the periphery of U-shaped aramid fiber hoop 22 is pasted with aramid fiber press strip 23, and the periphery of aramid fiber press strip 23 is pasted with fabric
10。
Embodiment three
As shown in figure 8, carrying out repairing reinforcement using power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention
Power transmission and transformation steel reinforced concrete structure bracket, obtains the embodiment three of structure bracket after reinforcing of the invention
Structure bracket includes A type truss column 31 after above-mentioned reinforcing, and the outer surface of A type truss column 31 is pasted with longitudinal aramid fiber
32 and closed ring aramid fiber 33, the outer surface of closed ring aramid fiber 33 be pasted with fabric 10.Structure after above-mentioned reinforcing
The crack on 31 surface of A type truss column of bracket is filled by slurry material 20, surface it is damaged by concrete interface agent 30, it is high-strength micro- swollen
Swollen material or polymer mortar 40 are repaired.
After reinforcing of the invention in the other embodiments of structure bracket, adding anti-rear structure bracket includes herringbone column's supporting leg, herringbone column
The outer surface of supporting leg is pasted with longitudinal aramid fiber and closed ring aramid fiber, the appearance face paste of closed ring aramid fiber
With fabric.
After reinforcing of the invention in the other embodiments of structure bracket, adding anti-rear structure bracket includes A type truss column or herringbone column
The outer surface of supporting leg, A type truss column or herringbone column's supporting leg is pasted with carbon fiber plate and carbon fiber hoop, the appearance of carbon fiber hoop
Face paste has fabric.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention is better than conventional method and other in all respects
So-called anti-corrosion method, compared with traditional replacing options, general each station will reduce investment outlay 3/5 or more.
Power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of the invention be it is a kind of under few power failure or no cut-off condition,
Reinforcement and strengthening protection directly is implemented to high voltage power transmission and transforming steel reinforced concrete structure bracket at the scene, it is made to restore safety, use function and resistance to
The technical solution of long property.It has used aramid fiber reinforcing, macromolecule glued crack, the combination of the old and new's material, high strength micro expansion material
The technologies such as material/polymer mortar repairing, the protection of high-molecular fabric film are realized to various damaged form high-voltage fence structure brackets
" recovery ", reinforcement or enhancing online.
Technical solution of the present invention is simple and easy, safe and reliable, economical rationality；Construction should influence less as far as possible production, work,
Do not cause or cause less as far as possible grid power blackout；It can make full use of and play the function of the live part of former structure bracket；Institute can be eliminated
Some breakages and defect, restore the intensity, rigidity of structure bracket each section, or even improve its design bearing capacity, corrosion resistance, make
Service life convergentization of each structure bracket from now in power grid；It is easy to arrange construction organization, technology arrangement and construction method, can ensure that
Footing and the common stress of body construction combine overall work；Size, self weight, the shape for not changing structure bracket, can improve structure
The ornamental value of bracket；Newly, the mechanical property of the combination of former subordinates point and crack filling adhesive material is more than this body concrete one amount
Grade or more, such as more than the tension index of No. 400 concrete；Appearance has the function of antiacid, alkali, salt corrosion；With stronger
Anti- natural aging performance, can be suitably used for the deformation performance of 80 DEG C of difference variations.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means characterized by comprising
Step 1: the crack of repairing power transmission and transformation steel reinforced concrete structure bracket；
Step 2: being repaired to the breakage of the power transmission and transformation steel reinforced concrete structure bracket；
Step 3: being reinforced using aramid fiber enhances the power transmission and transformation steel reinforced concrete structure bracket；
Step 4: using fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket,
The crack of the repairing power transmission and transformation steel reinforced concrete structure bracket is specifically included using the method for grouting:
Determine the purpose and target of grouting；
It determines that whether there is or not ponding inside crack length and width, depth, trend and crack, and checks crack character；
Counterincision seam surface is cleared up, and the joint seal slot of V or U-shaped is opened at crack openings；
Sealant, bonded adhesives are modulated respectively；
Modulation prepares grouting slurry material used；
One of following methods setting grout nipple: crack biggish for depth is selected according to the depth in crack, along wait be in the milk
The sealing in crack drill according to a fixed spacing, dust and residue in cleaning eye clear up the dirt in crack to be in the milk,
Grout nipple is set in the opening in the hole and hole；Crack lesser for depth, the sealing along crack to be in the milk is according to one
Fixed spacing mark applies filling point, and cleaning fills point to apply as the powder on crack two sides sealing surface in the range of the center of circle, 15mm-25mm radius
Dirt, residue, smooth sealing clear up the dirt in crack to be in the milk, and fill point sticky in described apply and are sticked and set grout nipple；
It is sealed using sealant counterincision sealing, and fixed grout nipple；
It is cleaned inside fracture, and is blown into air, keep crack internally dry；
Slurry material is poured into the inside in crack by the grout nipple, and the slurry material is closed in crack；
It drills at crack openings, sampling checks grouting quality, while removing grout nipple.
2. power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means according to claim 1, which is characterized in that described to institute
The breakage for stating power transmission and transformation steel reinforced concrete structure bracket carries out repairing and includes:
Determine repairing purpose and target call；
The damaged degree of the power transmission and transformation steel reinforced concrete structure bracket is checked, the damaged range of each breakage is marked；
The hollowing of breakage, bulge, fragment, damaged piece and low-intensity material are cut, and derusted to the reinforcing bar that breakage exposes,
Chemical cleaning is carried out to the basal plane of breakage；
Configure concrete interface agent；
Configure high strength micro expansion material or polymer mortar；
Check that breakage needs the intensity of washcoat；
The uniform painted concrete interfacial agents of basal plane, coverage rate 100%；
Pressure is carried out to breakage using high strength micro expansion material or polymer mortar and smears or pour flat, repairing, levelling, keeps mend flat
It is whole, restore structure and component original contoured surface.
3. power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means according to claim 1, which is characterized in that the utilization
Aramid fiber reinforces the enhancing power transmission and transformation steel reinforced concrete structure bracket
Determine the purpose and target call for pasting aramid fiber；
Determination need to paste the position of aramid fiber and be identified, setting-out；
The surface of the concrete or steel of pasting position is repaired, is levelling, polishing, chemical cleaning；
Primer, dipping glue is prepared in situ；
Prepare size and up-to-standard aramid fiber；
In concrete surface or steel surface roller coating primer；
Aramid fiber is pasted in concrete surface or steel surface；
Roller coating impregnates glue on aramid fiber lateral surface；
Aramid fiber lateral surface is arranged, gummosis cleaning.
4. power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means according to claim 1, which is characterized in that the utilization
Fabric reinforcement, the protection power transmission and transformation steel reinforced concrete structure bracket include:
Determine the purpose of fabric reinforcement and the range of fabric reinforcement；
To cleaning at basal plane, dust, residue, dirt, the grease of basal plane are cleared up；
To ruggedness test, uniformity testing is carried out at basal plane, qualified progress next step is examined, it is unqualified then to basal plane breakage
Secondary cleaning or repairing are carried out, the secondary cleaning is the cleaning lesser material of basal plane breakage intensity；
Fabric cuts, examines；
In basal plane breakage brushing fabric primer, pave on fabric primer the fabric in certain sequence, is pasted on fabric
On basal plane；
It sprayed in certain sequence in the outer surface for the fabric being pasted on basal plane, brush dipping protective rubber, make to be pasted on basal plane
Fabric is smooth, smooth.
5. structure branch after a kind of reinforcing using the power transmission and transformation steel reinforced concrete structure bracket aramid fiber reinforcement means of any one of claim 1-4
Frame, which is characterized in that the outer surface for reinforcing after-poppet is provided with fabric and is attached at the dipping protection on the surface of fabric
Glue-line, structure bracket includes T section crossbeam after the reinforcing, and the periphery of the T section crossbeam is pasted with edge of a wing side longitudinal direction
Aramid fiber and web bottom surface longitudinal direction aramid fiber, edge of a wing side longitudinal direction aramid fiber and web bottom surface longitudinal direction aramid fiber
Periphery is provided with U-shaped aramid fiber hoop, and the periphery of the U-shaped aramid fiber hoop is pasted with aramid fiber press strip, and the aramid fiber is fine
The periphery of dimension press strip is pasted with fabric and is attached at the dipping protection glue-line on the surface of fabric, and structure bracket includes after the reinforcing
The outer surface of annular framework column, the annular framework column is successively pasted with the first aramid fiber layer, the second aramid fiber layer,
The periphery of the second aramid fiber layer is pasted with aramid fiber hoop, and the aramid fiber hoop is vertical around the annular framework
The outer surface of column, the aramid fiber hoop is pasted with fabric and is attached at the dipping protection glue-line on the surface of fabric, described
Structure bracket includes A type truss column after reinforcing, and the outer surface of A type truss column is pasted with longitudinal aramid fiber and closed ring aramid fiber
Fiber, the outer surface of closed ring aramid fiber are pasted with fabric, and the crack on the A type truss column surface of structure bracket is starched after reinforcing
Material filling, the damaged of surface are repaired by concrete interface agent, high strength micro expansion material or polymer mortar.
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| CN108005674A (en) * | 2017-10-16 | 2018-05-08 | 广州地铁设计研究院有限公司 | A kind of aramid fiber fabric reinforcing method |
| CN107842209B (en) * | 2017-10-31 | 2020-08-14 | 广东威恒输变电工程有限公司 | Method for repairing and reinforcing concrete structural support of transformer substation |
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