CN109910166A - Improve the structure and preparation method thereof of FRP pipe and fiber concrete combination interface - Google Patents
Improve the structure and preparation method thereof of FRP pipe and fiber concrete combination interface Download PDFInfo
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- CN109910166A CN109910166A CN201910156202.8A CN201910156202A CN109910166A CN 109910166 A CN109910166 A CN 109910166A CN 201910156202 A CN201910156202 A CN 201910156202A CN 109910166 A CN109910166 A CN 109910166A
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- 239000000835 fiber Substances 0.000 title claims abstract description 148
- 239000004567 concrete Substances 0.000 title claims abstract description 122
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 123
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 54
- 230000008569 process Effects 0.000 claims description 44
- 239000004744 fabric Substances 0.000 claims description 21
- 239000003513 alkali Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000011083 cement mortar Substances 0.000 claims description 9
- 230000002195 synergetic effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 102000004130 Fusion Regulatory Protein-1 Human genes 0.000 description 2
- 108010057784 Fusion Regulatory Protein-1 Proteins 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 241000272168 Laridae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 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
- 238000005336 cracking Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007786 learning performance Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides the structure and preparation method thereof of a kind of improvement FRP pipe and fiber concrete combination interface, including FRP pipe, glass fiber mesh, fiber concrete column and bottom fixed pedestal, glass fiber mesh is anchored at FRP bottom of the tube by rivet, and it is close to bottom surface and is upwardly extended away from axis direction along FRP pipe sidewalls vertical, the bottom fixed pedestal is cast in FRP bottom of the tube, fiber concrete column passes through pulling force effect directed movement in fiber concrete column in the upward placement layer by layer of bottom fixed pedestal, glass fiber mesh.The present invention applies oriented active force to glass fiber mesh with certain sequence, it is allowed to generate distribution situation of the sliding to improve FRP pipe and fiber at concrete combination interface, bonding situation and fiber concrete side wall the multiple crack growth phenomenon due to caused by fiber wall effect for improving FRP pipe and fiber concrete improve working performance of the FRP pipe in conjunction with core concrete.
Description
Technical field
The invention belongs to technical field of concrete preparation, and in particular to improve FRP pipe and fiber concrete combination interface
Structure and preparation method thereof.
Background technique
In recent years, FRP manages (Fiber Reinforced Plastic, fibre reinforced composites) concrete combination column and exists
It is widely used in building, bridge and underground structure, chopped strand enhancing cement-based material has been carried out greatly both at home and abroad at present
Quantity research, and making some progress, for example enhance fibre by mixing various fibers or being surface-treated to fiber
The performance of concrete is tieed up, and inhibits the phenomenon that concrete surface cracks using continuous fiber, however, chopped fiber bundle increases
Although reinforced concrete can effectively improve the ductility and deformability of FRP pipe concrete, do not have orientation bearing capacity, it is continuous long
Fiber improves concrete and is easy to will lead to the durability reduction of structure the phenomenon that cracking；Nowadays the utilization of chopped strand is rested on
In random unordered arrangement after stirring, but during concrete vibrating fiber concrete internal fiber can due to wall effect and
FRP inside pipe wall is accumulated in, this can break the random arrangement principle of fiber, increase a possibility that multiple crack growth phenomenon occurs, thus
FRP pipe and the adhesive property of concrete is caused to decline, the decline of adhesive property will lead to FRP pipe concrete column power under load action
Learning performance seriously reduces.
Alkali-resistant glass fibre screen cloth can allow mortar to penetrate into fibre bundle and more preferably be combined, assisted with concrete by pultrusion technique
It helping and promotes crack-resistant performance of concrete and tensile strength, the existing pultrusion technique to fiber mesh cloth operates simply, and effect is obvious, but
It is especially little in mobility since effect of contraction of the slurry to fibre bundle makes pultrusion technique that can not play its working effect completely
Concrete mortar in, simple pultrusion technique can not effectively be such that cement mortar penetrates into fibre bundle from the gap that gathers materials.
Summary of the invention
The first object of the present invention is to solve problems and shortcomings of the existing technology, provides a kind of improvements FRP pipe and fibre
The structure for tieing up concrete combination interface, can make to accumulate in FRP inside pipe wall unordered chopped steel fibre generate certain rotation amount with
Offset improves fiber architecture direction, is intended to it in the same direction with glass fiber mesh, plays synergistic effect, is effectively promoted fine
Tie up the cementitiousness between concrete column and FRP pipe.
The second object of the present invention is to provide the preparation side of a kind of improvement FRP pipe and the structure of fiber concrete combination interface
Method.
The invention adopts the following technical scheme:
A kind of structure improving FRP pipe and fiber concrete combination interface, including FRP pipe, glass fiber mesh, fiber concrete
Column and bottom fixed pedestal, glass fiber mesh are fixed on FRP bottom of the tube, are close to FRP tube bottom face, and along FRP pipe side wall
Extend straight up, the glass fiber mesh can make the fiber concrete column internal fiber of FRP inside pipe wall generate rotation or inclined
It moves, improves fiber architecture direction, be intended to fiber concrete column internal fiber in the same direction with glass fiber mesh, play collaboration and make
With the bottom fixed pedestal is cast in FRP bottom of the tube, and fiber concrete column is cast on bottom fixed pedestal.
Further, the glass fiber mesh is alkali-resistant glass fibre screen cloth, and quantity is eight pieces, and adjacent alkali-proof glass is fine
Dimension screen cloth spacing is 30mm；The sizing grid of the glass fiber mesh is 30mm*30mm.
Further, the glass fiber mesh is anchored at FRP bottom of the tube by rivet；The anchor of the glass fiber mesh
Solid point is 30mm at a distance from FRP tube wall.
Further, the glass fiber mesh oblique arrangement in concrete column makes rectangular inside glass fiber mesh
The sideline of grid and the axle center of fiber concrete column are in 45 ° of angles.
Further, the internal fiber of the fiber concrete column is steel fibre of the average length in 30mm or more.
Further, the bottom fixed pedestal is cement mortar identical with concrete composition, with a thickness of 30-50mm.
A kind of preparation method improving FRP pipe and the structure of fiber concrete combination interface, comprising the following steps:
Step 1: preset glass fiber mesh calculates the width of glass fiber mesh according to fiber concrete column actual size, will
Glass fiber mesh is fixed on FRP bottom of the tube, so that glass fiber mesh is close to FRP tube bottom face, and along FRP pipe sidewalls vertical
It upwardly extends, the glass fiber mesh can make the fiber concrete column internal fiber of FRP inside pipe wall generate rotation or offset, change
Kind fiber architecture direction, is intended to fiber concrete column internal fiber in the same direction with glass fiber mesh, plays synergistic effect；
Step 2: it precoats cement mortar identical with concrete composition in FRP bottom of the tube, as bottom fixed pedestal；
Step 3: pouring fiber concrete column on bottom fixed pedestal, and the glass fiber mesh can be existed by pulling force effect
Quantitative exercise in fiber concrete column；
Step 4: after the completion of fiber concrete column pours, loosening glass fiber mesh, vibrates to fiber concrete column, most
Glass fiber mesh is tensed afterwards until the pre-hardening stage terminates.
Further, in step 3, fiber concrete column pours the process vibrated using placement layer by layer and layering, glass
The movement of fiber mesh cloth is also layered progress according to the placement layer by layer process of fiber concrete column.
Further, in step 3, the pulling force effect process and glass fiber mesh motion process are as follows:
First process: it is preset, before fiber concrete column pours, glass fiber mesh is close to FRP tube bottom face, along FRP pipe side
Wall extends straight up, does not apply external force to glass fiber mesh at this time；
Second process: deflecting after pouring first layer fiber concrete in FRP pipe, applies pulling force to glass fiber mesh, at this time
Pulling force determines glass fiber mesh along axis direction by being close to FRP pipe side wall along glass fiber mesh direction is horizontally and perpendicularly to
It to movement, is moved to anchorage point and locates straight up, and is reversed after some cycles；
Third process: pultrusion, pulling force makes glass fiber mesh in the tight shape with relaxation along the direction of glass fiber mesh at this time
It is toggled under state；
4th process: orientation, at this time pulling force along anchor point straight up, make mesh grid finally perpendicular to bottom fixed pedestal；
Remaining fiber concrete layer casting process, pulling force effect process and glass fiber mesh motion process are consistent with first layer.
Further, the second process carries out simultaneously with third process, moves in circles 180 seconds, is finally oriented process.
Beneficial effects of the present invention:
(1) present invention can make to accumulate in FRP pipe using alkali proof fiber screen cloth as FRP pipe and fiber concrete combination interface
The unordered chopped steel fibre of the concrete of wall generates certain rotation amount and offset, improves steel fibre arragement direction, is intended to it
It is in the same direction with alkali-resistant glass fibre cloth, synergistic effect is played, fiber concrete outer surface of column is produced because excessive steel fibre gathers
Laterally arrangement causes gull the unfavorable factors such as to form to have clear improvement for raw multiple crack growth phenomenon and steel fibre.
(2) present invention uses pultrusion technique in glass fiber mesh moving process, makes glass fiber mesh in mobility
Enable to be attached to the cement mortar between gathering materials by the movement of active in little mortar and preferably penetrate into fibre bundle, makes
The working effect of pultrusion technique gives full play to, and keeps total working performance more preferable, effectively promotes fiber concrete column and FRP
Cementitiousness between pipe.
Detailed description of the invention
Fig. 1 be glass fiber mesh before casting concrete with the relationship situation map of FRP inside pipe wall；
Fig. 2 is glass fiber mesh final position relation schematic diagram in concrete column；
Fig. 3 is anchor points top view；
Fig. 4 is that angle change situation of the glass fiber mesh on the section that rivet implements rotation process in fiber concrete is sat
Mark system schematic diagram；
Fig. 5 is the situation of change coordinate system schematic diagram to the pulling force of glass fiber mesh in one cycle；
Fig. 6 is the delamination schematic diagram of sandwich concrete column；
Label in attached drawing are as follows: 1, FRP pipe；2, glass fiber mesh；3, fiber concrete column；4, rivet；5, the fixed base of bottom
Seat；A, glass fiber mesh moving line；B, last moment glass fiber mesh sideline position；C, anchor point；, fiber it is mixed
Solidifying soil placement layer by layer interface one；, fiber concrete placement layer by layer interface two；, fiber concrete placement layer by layer interface three；, fiber concrete placement layer by layer interface four；T1, glass fiber mesh move institute in the FRP pipe after casting concrete mortar
The pulling force size needed；Required pulling force size when T2, glass fiber mesh are using pultrude process technology does not include that vibration is required
Power.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Referring to Fig.1-6, a kind of structure improving FRP pipe and fiber concrete combination interface, including FRP pipe 1, glass fibre
Screen cloth 2, fiber concrete column 3 and bottom fixed pedestal 5, glass fiber mesh 2 are fixed on 1 bottom of FRP pipe, are close to 1 bottom of FRP pipe
Face, and upwardly extended along 1 sidewalls vertical of FRP pipe, the glass fiber mesh 2 can make the fiber concrete of 1 inner wall of FRP pipe
3 internal fiber of column generates rotation or offset, improves fiber architecture direction, is intended to 3 internal fiber of fiber concrete column and glass
Glass fiber mesh cloth 2 in the same direction, plays synergistic effect, and the bottom fixed pedestal 5 is cast in 1 bottom of FRP pipe, fiber concrete column 3
It is cast on bottom fixed pedestal 5；The glass fiber mesh 2 is alkali-resistant glass fibre screen cloth, and quantity is eight pieces, adjacent alkaline-resisting
Glass fiber mesh spacing is 30mm；The sizing grid of the glass fiber mesh 2 is 30mm*30mm；The glass fiber mesh
Cloth 2 is anchored at 1 bottom of FRP pipe by rivet 4；The anchor point of the glass fiber mesh 2 is 30mm at a distance from FRP tube wall；
The glass fiber mesh 2 oblique arrangement in concrete column makes sideline and the fiber of 2 inside square net of glass fiber mesh
The axle center of concrete column 3 is in 45 ° of angles；The internal fiber of the fiber concrete column 3 is steel of the average length in 30mm or more
Fiber；The bottom fixed pedestal 5 is cement mortar identical with concrete composition, with a thickness of 30-50mm.
Preparation method of the invention, comprising the following steps:
Step 1: the width of glass fiber mesh needed for being calculated according to 3 actual size of fiber concrete column takes eight pieces of sizing grids
For the alkali-resistant glass fibre screen cloth of 30mm*30mm, alkali-resistant glass fibre screen cloth is close to bottom surface and away from axis direction along FRP
1 inner wall of pipe extends straight up, and adjacent alkali-resistant glass fibre screen cloth spacing is 30mm, using rivet by every piece of glass fiber mesh
Two bottom points be anchored at away from FRP tube wall 30mm, the oblique arrangement in concrete column of alkali-resistant glass fibre screen cloth makes alkali-proof glass
The sideline of square net and the axle center of fiber concrete column 3 are in 45° angle inside fiber mesh cloth；The glass fiber mesh 2 can make
3 internal fiber of fiber concrete column of 1 inner wall of FRP pipe generates rotation or offset, improves fiber architecture direction, makes fiber concrete
3 internal fiber of column is intended to glass fiber mesh 2 in the same direction, play synergistic effect；
Step 2: it precoats the cement mortar with a thickness of 30-50mm identical with concrete composition in 1 bottom of FRP pipe, as bottom
Fixed pedestal 5 generates voids and pits phenomenon to avoid isolation；
Step 3: pouring fiber concrete column 3 on bottom fixed pedestal 5, and the concrete column 3 is poured using placement layer by layer
With the process vibrated of layering, the glass fiber mesh 2 can by pulling force effect in fiber concrete column 3 quantitative exercise, glass
The movement of glass fiber mesh cloth 2 is also layered progress according to the placement layer by layer process of fiber concrete column 3；When glass fiber mesh 2
It is influenced to move not up time in fiber concrete column 3 by coarse aggregate, vibration wave can be generated by external vibrators and pass to coagulation
Soil vibrates mortar with gathering materials, and preferentially adjusting the distance to be obstructed on the outside of the nearest FRP pipe of fiber mesh cloth carries out surface and vibrate.
Pulling force effect process and the motion process of glass fiber mesh 2 are as follows:
First process: it is preset, before fiber concrete column 3 pours, glass fiber mesh 2 is close to 1 bottom surface of FRP pipe, along FRP
1 sidewalls vertical of pipe upwardly extends, and does not apply external force to glass fiber mesh 2 at this time；
Second process: deflecting after pouring first layer fiber concrete in FRP pipe 1, applies pulling force to glass fiber mesh 2, this
Shi Lali makes glass fiber mesh 2 by being close to 1 side wall of FRP pipe along axle center side along 2 direction of glass fiber mesh is horizontally and perpendicularly to
It to displacement, is moved to anchorage point and locates straight up, and is reversed after 5s；
Third process: pultrusion, pulling force is upward along the direction of glass fiber mesh 2 at this time, make glass fiber mesh 2 it is tight with it is loose
It is toggled in the state of relaxation, reversed after half period, a cycle 30s；
4th process: orientation, at this time pulling force along anchor point straight up, make mesh grid finally perpendicular to bottom fixed pedestal 5；
Wherein, deflecting process carries out simultaneously with pultrusion process, form one by the power superposition of two kinds of different cycles different directions and
At superposed force, move in circles 180s, is finally oriented process, can carry out level to glass fiber mesh 2 in orientation process
The vibration in direction makes fiber concrete column 3, especially makes the mortar near glass fiber mesh 2 more closely knit；
Remaining fiber concrete layer casting process, pulling force effect process and 2 motion process of glass fiber mesh are consistent with first layer.
Step 4: after the completion of fiber concrete column 3 pours, loosen glass fiber mesh 2, carry out the effect of vibrating, most post-tensioning
Tight glass fiber mesh 2 terminates up to the pre-hardening stage.
Present invention alkali-resistant glass fibre (ZrO2 content is 16.7%) replaces medium-alkali glass fibre (ZrO2 content is 0%),
The corrosion resistance of alkali-resistant glass fibre is better than medium-alkali glass fibre.
The oblique arrangement in fiber concrete column 3 of glass fiber mesh 2, makes glass fiber mesh on same cross section
Area equation, the fiber for guaranteeing distribution two sides more evenly, more effectively promote the toughness of fiber concrete column 3.
3 internal fiber of fiber concrete column selects average length in the steel fibre of 30mm or more in FRP pipe 1, and incorporation steel is fine
In the case where dimension, the damage -form of fiber concrete column 3 is changed into ductile fracture, glass fiber mesh 2 and steel by brittle break
The use that mixes of fiber shows preferable positive confounding effect.
Pultrusion technique is used in 2 moving process of glass fiber mesh, makes the sand that glass fiber mesh 2 is little in mobility
Enable to be attached to the cement mortar between gathering materials by the movement of active in slurry and preferably penetrate into fibre bundle, makes pultrusion technique
Working effect give full play to and keep total working performance more preferable.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention, it is noted that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (10)
1. improving the structure of FRP pipe and fiber concrete combination interface, which is characterized in that manage (1), glass fiber mesh including FRP
Cloth (2), fiber concrete column (3) and bottom fixed pedestal (5), glass fiber mesh (2) are fixed on FRP pipe (1) bottom, are close to
FRP manages (1) bottom surface, and upwardly extends along FRP pipe (1) sidewalls vertical, and the glass fiber mesh (2) can make FRP manage (1)
Fiber concrete column (3) internal fiber of inner wall generates rotation or offset, changes fiber architecture direction, makes fiber concrete column
(3) internal fiber is intended to glass fiber mesh (2) in the same direction, play synergistic effect, and the bottom fixed pedestal (5) is cast in
FRP manages (1) bottom, and fiber concrete column (3) is cast on bottom fixed pedestal (5).
2. the structure according to claim 1 for improving FRP pipe and fiber concrete combination interface, which is characterized in that described
Glass fiber mesh (2) is alkali-resistant glass fibre screen cloth, and quantity is eight pieces, and adjacent alkali-resistant glass fibre screen cloth spacing is 30mm；
The sizing grid of the glass fiber mesh (2) is 30mm*30mm.
3. the structure according to claim 1 for improving FRP pipe and fiber concrete combination interface, which is characterized in that described
Glass fiber mesh (2) is anchored at FRP by rivet (4) and manages (1) bottom；The anchor point and FRP of the glass fiber mesh (2)
The distance of tube wall is 30mm.
4. the structure according to claim 3 for improving FRP pipe and fiber concrete combination interface, which is characterized in that described
Glass fiber mesh (2) oblique arrangement in concrete column makes sideline and the fiber of the internal square net of glass fiber mesh (2)
The axle center of concrete column (3) is in 45 ° of angles.
5. the structure according to claim 1 for improving FRP pipe and fiber concrete combination interface, which is characterized in that described
The internal fiber of fiber concrete column (3) is steel fibre of the average length in 30mm or more.
6. the structure according to claim 1 for improving FRP pipe and fiber concrete combination interface, which is characterized in that described
Bottom fixed pedestal (5) is cement mortar identical with concrete composition, with a thickness of 30-50mm.
7. a kind of preparation method according to claim 1 for improving FRP pipe and the structure of fiber concrete combination interface,
It is characterized in that, comprising the following steps:
Step 1: preset glass fiber mesh (2) calculates glass fiber mesh (2) according to fiber concrete column (3) actual size
Width, by glass fiber mesh (2) be fixed on FRP pipe (1) bottom, make glass fiber mesh (2) be close to FRP pipe (1) bottom surface,
And it is upwardly extended along FRP pipe (1) sidewalls vertical, the glass fiber mesh (2) can make the fiber of FRP pipe (1) inner wall mixed
Solidifying earth pillar (3) internal fiber generates rotation or offset, improves fiber architecture direction, fiber concrete column (3) internal fiber is made to become
Xiang Yuyu glass fiber mesh (2) in the same direction, plays synergistic effect；
Step 2: it precoats cement mortar identical with concrete composition in FRP pipe (1) bottom, as bottom fixed pedestal (5)；
Step 3: pouring fiber concrete column (3) on bottom fixed pedestal (5), and the glass fiber mesh (2) can pass through drawing
Power acts on quantitative exercise in fiber concrete column (3)；
Step 4: after the completion of fiber concrete column (3) pours, loosening glass fiber mesh (2), to fiber concrete column (3) into
Row vibrates, and finally tenses glass fiber mesh (2) until the pre-hardening stage terminates.
8. the preparation method according to claim 7 for improving FRP pipe and the structure of fiber concrete combination interface, feature
It is, in step 3, fiber concrete column (3) pours the process vibrated using placement layer by layer and layering, glass fiber mesh
(2) movement is also layered progress according to the placement layer by layer process of fiber concrete column (3).
9. the preparation method according to claim 7 for improving FRP pipe and the structure of fiber concrete combination interface, feature
It is, in step 3, the pulling force effect process and glass fiber mesh (2) motion process are as follows:
First process: it is preset, before fiber concrete column (3) pours, glass fiber mesh (2) are close to FRP and manage (1) bottom surface,
And it is upwardly extended along FRP pipe (1) sidewalls vertical, external force is not applied to glass fiber mesh (2) at this time；
Second process: deflecting after pouring first layer fiber concrete in FRP pipe (1), applies glass fiber mesh (2) and draws
Power, pulling force makes glass fiber mesh (2) by being close to FRP pipe (1) along glass fiber mesh (2) direction is horizontally and perpendicularly at this time
Side wall is moved to anchorage point and locates straight up along axis direction displacement, and reversed after some cycles；
Third process: pultrusion, pulling force is along the direction of glass fiber mesh (2) at this time, make glass fiber mesh (2) it is tight with it is loose
It is toggled in the state of relaxation；
4th process: orientation, at this time pulling force along anchor point straight up, make mesh grid finally perpendicular to bottom fixed pedestal (5)；
Remaining fiber concrete layer casting process, pulling force effect process and glass fiber mesh (2) motion process and first layer one
It causes.
10. the preparation method according to claim 9 for improving FRP pipe and the structure of fiber concrete combination interface, special
Sign is that the second process carries out simultaneously with third process, moves in circles 180 seconds, is finally oriented process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156202.8A CN109910166B (en) | 2019-03-01 | 2019-03-01 | Structure for improving bonding interface of FRP (fiber reinforced plastic) pipe and fiber concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156202.8A CN109910166B (en) | 2019-03-01 | 2019-03-01 | Structure for improving bonding interface of FRP (fiber reinforced plastic) pipe and fiber concrete and preparation method thereof |
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| CN109910166B CN109910166B (en) | 2020-07-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| CN103074847A (en) * | 2013-01-21 | 2013-05-01 | 福州大学 | Novel reinforced-concrete combined pier column and construction method thereof |
| CN103967205A (en) * | 2014-05-08 | 2014-08-06 | 广东工业大学 | FRP (Fiber Reinforced Polymer) pipe-recycled concrete-steel pipe double-walled hollow combined member |
| CN107165336A (en) * | 2017-04-26 | 2017-09-15 | 北京工业大学 | A kind of combination beam and its manufacture method |
| CN207405875U (en) * | 2017-11-09 | 2018-05-25 | 山东大学 | A kind of non-adhesive superhigh tenacity cement-base composite material functionally gradient beam |
-
2019
- 2019-03-01 CN CN201910156202.8A patent/CN109910166B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| CN103074847A (en) * | 2013-01-21 | 2013-05-01 | 福州大学 | Novel reinforced-concrete combined pier column and construction method thereof |
| CN103967205A (en) * | 2014-05-08 | 2014-08-06 | 广东工业大学 | FRP (Fiber Reinforced Polymer) pipe-recycled concrete-steel pipe double-walled hollow combined member |
| CN107165336A (en) * | 2017-04-26 | 2017-09-15 | 北京工业大学 | A kind of combination beam and its manufacture method |
| CN207405875U (en) * | 2017-11-09 | 2018-05-25 | 山东大学 | A kind of non-adhesive superhigh tenacity cement-base composite material functionally gradient beam |
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| CN109910166B (en) | 2020-07-07 |
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