CN107939062A - The method that thin fiber board reinforces maintenance shell class steel construction online - Google Patents
The method that thin fiber board reinforces maintenance shell class steel construction online Download PDFInfo
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- CN107939062A CN107939062A CN201711075550.XA CN201711075550A CN107939062A CN 107939062 A CN107939062 A CN 107939062A CN 201711075550 A CN201711075550 A CN 201711075550A CN 107939062 A CN107939062 A CN 107939062A
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- CN
- China
- Prior art keywords
- fiber board
- thin fiber
- steel construction
- maintenance
- epoxy resin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/1686—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by winding a tape
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A kind of method for reinforcing maintenance shell class steel construction online the invention discloses thin fiber board, carries out reinforcing maintenance online using thin fiber board to in-service and newly-built shell class steel construction.The thin fiber board is woven by carbon fiber wire, aramid fiber silk, high-strength glass fibre silk or basalt fibre silk and uses impregnant dipping to form, this impregnant is by liquid-state epoxy resin：Solid epoxy resin：Polyamide presses 0.8~1.2：0.8~1.2：0.8~1.2 weight ratio prepares composition；Filametntary calculated thickness is 0.1mm~0.5mm in the thin fiber board, and the actual (real) thickness completed in impregnant after dipping is 0.15mm~0.80mm；Then after the thin fiber board for completing dipping being hung 60min~600min in the interior or shady place that environment temperature is 5 DEG C~20 DEG C, then it is placed in 5 DEG C~10 DEG C of container and preserves.The present invention uses the reinforcing fiber sheet steel construction of flexible barrier, can the construction such as on-line implement reinforcement and strengthening, maintenance, pressure sealing, and mechanical property is good, and cost is low, short construction period.
Description
Technical field
The present invention relates to the reinforcing maintenance technique of the pipes such as (pressure) container, pipeline, machinery, civil engineering-shell class steel construction,
A kind of method for reinforcing maintenance pipe-shell class steel construction online more particularly to thin fiber board.
Background technology
Managed to strengthen or recover in-service (pressure) container, (pressure) pipeline, bridge, hoisting machinery, house, venue etc.-
Shell class steel construction uses function and the newly-built pipe-bearing capacity of shell class steel construction of raising, antidetonation, shockproof function, the prior art
It is main to use welding, the method for affixing carbon fabric to achieve the goal.
The work progress of pipe-shell class steel construction is carried out maintenance using welding procedure to be included：
--- closing structure thing, is at the state being stopped；
--- pipe-shell class steel structure surface that polishing need to weld.If any crackle, crack arrest processing need to be carried out；
--- reinforcer is set and is welded；
--- remove residual stress processing；
--- brushing paint etc. makees preservative treatment.
Using welding procedure, there are problems with：1) need to get angry, it is impossible to carry out On-line construction, it is necessary to be in works
The state being stopped.If also need to first be purged work there are combustibles or gas in pressure vessel, pipeline；2)
The steel construction piece for needing pre-production size, shape, intensity etc. all to match with being reinforced maintenance objects；3) welding section is (containing heat
The zone of influence) it can deform, produce residual stress, and cause stress concentration；4) need to make preservative treatment；5) construction period is longer.
Using carbon cloth reinforce the work progress of maintenance includes：
--- closing structure thing, is at the state being stopped；
--- pipe-shell class steel structure surface processing；
--- preparation and brushing underfill resin layer.Then to make the epoxy resin cementation of fissures or joint seal processing for band crackle component；
--- prepare alignment material and to carrying out leveling at out-of-flatness；
--- preparation and brushing impregnating resin；
--- cut simultaneously affixing carbon fabric；
, it is necessary to repeat above-mentioned 5th and the 6th construction procedure when pasting 2 layers and multi-storey up-down and translation；
--- surfacecti proteon is handled.
Using carbon cloth reinforced maintenance technique, there are problems with：1) On-line construction cannot be carried out, also can not leak stopping, must
Works must be made to be in the state being stopped；2) specification of carbon cloth is extremely limited, and it is fine to generally require more than 2 layers carbon of stickup
Wei Bu, often waste of materials, and cause the interface of structure to be increased, reinforcing efficiency reduces, quantities increase, cost increase；3) use
Glue amount is big；4) construction period is longer.
The content of the invention
The purpose of the invention is to overcome above the shortcomings of the prior art, there is provided a kind of construction period is short, saves
Material saving, the thin fiber board that cost is low, mechanical property can reinforce well maintenance online reinforce the side of maintenance pipe-shell class steel construction online
Method.
The purpose of the present invention is realized by following technical solution：This thin fiber board reinforces maintenance pipe-shell class steel knot online
The method of structure, in-service and newly-built pipe-shell class steel construction is carried out online reinforcing maintenance using thin fiber board；
Wherein, the thin fiber board is compiled by carbon fiber wire, aramid fiber silk, high-strength glass fibre silk or basalt fibre silk
Knit and be impregnated in impregnant and form, this impregnant is by liquid-state epoxy resin：Solid epoxy resin：Polyamide=0.8-1.2：
0.8-1.2：The weight ratio of 0.8-1.2 forms, and filametntary calculated thickness is 0.1mm~0.5mm in the thin fiber board,
The actual (real) thickness completed in impregnant after dipping is 0.15mm~0.80mm；Then the thin fiber board of dipping will be completed in environment temperature
Spend after hanging 60min~600min for 5 DEG C~20 DEG C of interior or shady place, then be placed in 5 DEG C~10 DEG C of container and protect
Deposit.
Preferably, the method that the thin fiber board reinforces maintenance pipe-shell class steel construction online, comprises the following steps,
1) the quick design reinforcement maintenance side of fracture mechanics scheduling theory is used for the breakage and requirement of steel construction
Case；
2) thin fiber board of the breakage for steel construction and requirement selection suitable type；
3) use the process of reinforcing fiber sheet steel construction for：
3.1) when steel construction have it is damaged, with/without internal pressure and when having leakage, first will be wound in steel for the thin fiber board of leak stopping
The damaged surface of structure, and interim fixing process is carried out using adhesive tape；It will attach to steel construction and the thin fiber board for leak stopping
The leakage of outer surface is cleaned out, and cleaning of polishing has been wound with outside the leak stopping thin fiber board and maintenance that needs reinforcement
Steel structure surface；The outer surface of steel structure surface in the maintenance that needs reinforcement and the thin fiber board for leak stopping is equably brushed
The superpower glue of epoxy resin；Thin fiber board winding for reinforcing maintenance is pasted on to the steel construction for being painted with the superpower glue of epoxy resin
And the outer surface of the thin fiber board for leak stopping；Finally using the superpower glue of epoxy resin by for reinforcing the thin fiber board repaired
End winding be pasted on the thin fiber board of time outer ring, and processing is fixed using adhesive tape；
3.2) when steel construction No leakage, the surface of steel construction is polished and is cleaned；It is uniform on the surface of steel construction
The superpower glue of brushwork epoxy resin；The steel knot for being painted with the superpower glue of epoxy resin will be wrapped in for the thin fiber board of reinforcing maintenance
On structure surface；The end winding of the outer ring thin fiber board for reinforcing maintenance is pasted on using the superpower glue of epoxy resin again secondary outer
Enclose on thin fiber board, and processing is fixed using adhesive tape.
Preferably, in step 3.1), for reinforce maintenance outer ring thin fiber board end stickup length be more than or
Equal to 200mm；In step 3.2), the stickup length of the end of outer ring thin fiber board is greater than or equal to 200mm.
Preferably, the length of the thin fiber board is less than or equal to 500m, and the width of the thin fiber board for 50mm~
200mm。
The present invention has the following advantages relative to the prior art：
1), can on-line implement reinforcement and strengthening, maintenance, leak stopping etc. present invention does not require the steel construction for reinforcing maintenance is out of service
Construction.
2) present invention can centering low-pressure (≤4MPa) pressure vessel or pressure pipeline carry out online pressure sealing and
Maintenance is reinforced, available for rescue and relief work engineering.
3) thin fiber board of the invention is flexible structure, it is convenient to reinforcing maintenance is carried out to the steel construction with curved surface,
And flexible fiber thin plate has single layer structure, it is not necessary to pastes multilayer, reduces the interface of ruggedized construction, mechanical property is good.
4) freely, adaptable, the dosage of the required superpower glue of epoxy resin is few for the size of thin fiber board of the invention, reduces
Cost.
5) thin fiber board of the invention is not required to live dipping, and thin fiber board flexibility is good, easily construction, and process is few,
Duration is extremely short.
6) present invention embodies the dimensionally-optimised of thin fiber board, strength advantage and eliminates influence of crackle etc..
Embodiment
With reference to embodiment, the invention will be further described.
The method that thin fiber board reinforces maintenance pipe-shell class steel construction online, using thin fiber board to in-service and newly-built pipe-
Shell class steel construction carries out online reinforce and repairs.
Wherein, the thin fiber board is woven by carbon fiber wire, aramid fiber silk, high-strength glass fibre or basalt fibre silk
Form, and the thin fiber board is impregnated in impregnant, this impregnant is by liquid-state epoxy resin：Solid epoxy resin：Polyamide is pressed
1：1：1 weight ratio prepares composition, and filametntary calculated thickness is 0.1mm~0.5mm in the thin fiber board, in impregnant
Actual (real) thickness after middle completion dipping is 0.15mm~0.80mm；Then it is 5 in environment temperature by the thin fiber board for completing dipping
DEG C~after 20 DEG C of interior or shady place hang 60min~600min, then be placed in 5 DEG C~10 DEG C of container and preserve, from
And the thin fiber board with flexibility and compressive resistance seepage property is made.The tensile strength of thin fiber board is 1600~4800MPa,
Tensile strength >=6MPa of impregnant (i.e. matrix) after consolidation.
The length of the thin fiber board is less than or equal to 500m, and the width of the thin fiber board is 50mm~200mm.It is suitable
When length and width can better ensure that thin fiber board winding after fastness.General thin fiber board for carbon fiber sheet,
Aramid fiber thin plate, high-strength glass fibre thin plate or basalt fibre thin plate.
The method that the thin fiber board reinforces maintenance pipe-shell class steel construction online, comprises the following steps,
1) it is directed to Steel Structural Design maintenance program；To the breakage of steel construction and requirement that need reinforcement using disconnected
Split the quick design reinforcement maintenance program of mechanics scheduling theory, if desired for respectively be directed to steel construction in without the fillers such as gas, liquid, steel
Situations such as with pressure/no pressure gas, liquid are stored in structure, and is leaked.
2) for the thin fiber board of steel construction selection suitable type；The steel construction of maintenance and damaged feelings need to be reinforced according to scene
Condition selects appropriate thin fiber board, fine using high-strength glass for the consideration of durability and economy, leak stopping in the present embodiment
Thin plate is tieed up, outer layer is reinforced and uses carbon fiber sheet.
3) process for reinforcing steel construction using thin fiber board winding has the following two kinds situation：
3.1) when steel construction have it is damaged, with/without internal pressure and when having leakage, first will be wound in steel for the thin fiber board of leak stopping
The damaged surface of structure, and using interim fixing process of carry out such as adhesive tapes.For more preferable leak stopping, low-pressure (≤4MPa) in the middle
When gas or liquid are leaked from pressure vessel or pressure pipeline, using width than leakage mouth width 20cm, calculated thickness>0.10mm
Thin fiber board.Wherein, when just referring to steel construction with/without internal pressure in the presence of leakage, either there is internal pressure in steel construction, still do not have interior
Pressure, can use above-mentioned measure.
It will attach to steel construction and leak stopping to be cleaned out with the leakage of thin fiber board outer surface, and cleaning of polishing has been wound
The steel structure surface of the maintenance that needs reinforcement outside thin fiber board；
In the steel structure surface for the maintenance that needs reinforcement and the outer surface equably brushing asphalt mixtures modified by epoxy resin of leak stopping thin fiber board
The superpower glue of fat；Thin fiber board winding for reinforcing maintenance is pasted on to steel construction and the leak stopping for being painted with the superpower glue of epoxy resin
On the outer surface of thin fiber board；
The end winding of the outer ring thin fiber board for reinforcing maintenance is finally pasted on by use using the superpower glue of epoxy resin
Processing is fixed on secondary outer ring thin fiber board outer surface, and using adhesive tape etc.；
3.2) when steel construction does not leak, the surface of steel construction is polished and is cleaned；
In the superpower glue of the uniform brushwork epoxy resin in the surface of steel construction；It will be wound in for the thin fiber board for reinforcing maintenance
It is painted with the steel structure surface of the superpower glue of epoxy resin；
The end winding of the thin fiber board for reinforcing maintenance is finally pasted on by time outer ring using the superpower glue of epoxy resin
On thin fiber board, and processing is fixed using adhesive tape etc..
In step 3.1), the stickup length of the end of the outer ring thin fiber board for reinforcing maintenance is greater than or equal to
200mm；In step 3.2), the stickup length of the end of outer ring thin fiber board is greater than or equal to 200mm.Surpassed using epoxy resin
Strong rubber fixes appropriate tip lengths, it is ensured that has good durability.
Adopting with the aforedescribed process can be in the steel knot of (pressure) pipeline, (pressure) container, bridge, machinery, house and venue etc.
Applied in structure.
Above-mentioned embodiment is the preferred embodiment of the present invention, can not be limited the invention, and others are appointed
The change or other equivalent substitute modes what is made without departing from technical scheme, are included in the protection of the present invention
Within the scope of.
Claims (4)
1. the method that thin fiber board reinforces maintenance pipe-shell class steel construction online, it is characterised in that：Using thin fiber board to in-service and
Newly-built pipe-shell class steel construction carries out online reinforce and repairs；
Wherein, the thin fiber board by carbon fiber wire, aramid fiber silk, high-strength glass fibre silk or basalt fibre silk braiding,
And be impregnated in impregnant and form, this impregnant is by liquid-state epoxy resin：Solid epoxy resin：Polyamide=0.8-1.2：0.8-
1.2：The weight ratio of 0.8-1.2 forms, and filametntary calculated thickness is 0.1mm~0.5mm in the thin fiber board, is being impregnated
The actual (real) thickness completed in material after dipping is 0.15mm~0.80mm；Then it is in environment temperature by the thin fiber board for completing dipping
After 5 DEG C~20 DEG C of interior or shady place hang 60min~600min, then it is placed in 5 DEG C~10 DEG C of container and preserves.
2. the method that thin fiber board according to claim 1 reinforces maintenance pipe-shell class steel construction online, it is characterised in that：
Comprise the following steps,
1) the quick design reinforcement maintenance program of fracture mechanics scheduling theory is used for the breakage and requirement of steel construction；
2) thin fiber board of the breakage for steel construction and requirement selection suitable type；
3) use the process of reinforcing fiber sheet steel construction for：
3.1) when steel construction have it is damaged, with/without internal pressure and when having leakage, first will be wound in steel construction for the thin fiber board of leak stopping
Damaged surface, and interim fixing process is carried out using adhesive tape；It will attach to steel construction and the thin fiber board appearance for leak stopping
The leakage in face is cleaned out, and cleaning of polishing has been wound with steel knot that is outside leak stopping thin fiber board and needing reinforcement maintenance
Structure surface；The outer surface of steel structure surface in the maintenance that needs reinforcement and the thin fiber board for leak stopping equably brushing epoxy
The superpower glue of resin；Thin fiber board winding for reinforcing maintenance is pasted on to the steel construction and use for being painted with the superpower glue of epoxy resin
In on the outer surface of the thin fiber board of leak stopping；The superpower glue of epoxy resin is finally used by the end of the thin fiber board for reinforcing maintenance
Portion's winding is pasted on time outer ring thin fiber board, and processing is fixed using adhesive tape；
3.2) when steel construction No leakage, the surface of steel construction is polished and is cleaned；Uniformly applied on the surface of steel construction
The superpower glue of brush epoxy resin；The steel construction table for being painted with the superpower glue of epoxy resin will be wrapped in for the thin fiber board of reinforcing maintenance
On face；It is fine that the end winding of the outer ring thin fiber board for reinforcing maintenance is pasted on by time outer ring using the superpower glue of epoxy resin again
Tie up on thin plate, and processing is fixed using adhesive tape.
3. the method that thin fiber board according to claim 2 reinforces maintenance pipe-shell class steel construction online, it is characterised in that：
In step 3.1), it is greater than or equal to 200mm for reinforcing the end stickup length of outer ring thin fiber board of maintenance；In step
3.2) in, the end of outer ring thin fiber board pastes length and is greater than or equal to 200mm.
4. the method that thin fiber board according to claim 1 reinforces maintenance pipe-shell class steel construction online, it is characterised in that：
The length of the thin fiber board is less than or equal to 500m, and the width of the thin fiber board is 50mm~200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075550.XA CN107939062A (en) | 2017-11-06 | 2017-11-06 | The method that thin fiber board reinforces maintenance shell class steel construction online |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075550.XA CN107939062A (en) | 2017-11-06 | 2017-11-06 | The method that thin fiber board reinforces maintenance shell class steel construction online |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440292A (en) * | 2018-11-20 | 2019-03-08 | 曹京业 | Band is reinforced in the braiding of high tensile steel wire composite material |
| CN111102427A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Method for reinforcing and repairing metal pipeline by using carbon fiber cloth vacuum infusion technology |
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| CN101122177A (en) * | 2007-09-04 | 2008-02-13 | 华南理工大学 | Usage method of prestressed thin fiber board in concrete architecture |
| CN101205999A (en) * | 2007-01-15 | 2008-06-25 | 北京安科管道工程科技有限公司 | Renovation reinforcement, reinforced and/or crack arrest technique for pipe |
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| CN102937225A (en) * | 2012-10-23 | 2013-02-20 | 罗来康 | Rapid bonding and plugging method and device with pressure |
| CN104033698A (en) * | 2014-06-17 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Method for pressure welding and leaking stoppage of pressure pipeline |
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|---|---|---|---|---|
| CN1252507A (en) * | 1998-10-28 | 2000-05-10 | 上海市徐汇区化学事故应急救援工作站 | Fast leaking-stopping method for pipeline with pressure |
| CN101205999A (en) * | 2007-01-15 | 2008-06-25 | 北京安科管道工程科技有限公司 | Renovation reinforcement, reinforced and/or crack arrest technique for pipe |
| CN101122177A (en) * | 2007-09-04 | 2008-02-13 | 华南理工大学 | Usage method of prestressed thin fiber board in concrete architecture |
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| CN101514776A (en) * | 2008-02-19 | 2009-08-26 | 北京安科管道工程科技有限公司 | Method for permanent pressure leak stopping |
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| CN102937225A (en) * | 2012-10-23 | 2013-02-20 | 罗来康 | Rapid bonding and plugging method and device with pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102427A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Method for reinforcing and repairing metal pipeline by using carbon fiber cloth vacuum infusion technology |
| CN109440292A (en) * | 2018-11-20 | 2019-03-08 | 曹京业 | Band is reinforced in the braiding of high tensile steel wire composite material |
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Application publication date: 20180420 |