CN105937306A - Apparatus and method for reinforcing column by prestressed fiber sheet - Google Patents
Apparatus and method for reinforcing column by prestressed fiber sheet Download PDFInfo
- Publication number
- CN105937306A CN105937306A CN201610343980.4A CN201610343980A CN105937306A CN 105937306 A CN105937306 A CN 105937306A CN 201610343980 A CN201610343980 A CN 201610343980A CN 105937306 A CN105937306 A CN 105937306A
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- sheet material
- fibre sheet
- end anchorage
- convex
- hydraulic jack
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
- E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The present invention discloses an apparatus for reinforcing a column by a prestressed fiber sheet. The apparatus comprises a fixing end anchor and a tensioning end anchor which are anchored to a concrete column, and a convex type hydraulic jack connected with the fixing end anchor and the tensioning end anchor. The apparatus also comprises a dimidiate clamping piece type fixture, a cylinder with a column cap is welded to an upper surface of the clamping piece type fixture, and a sleeve sleeving the cylinder is connected to the convex type hydraulic jack through a jacking rod. One end of the fiber sheet is clamped by the clamping piece type fixture at a tensioning end, and the other end of the fiber sheet is anchored to the fixing end anchor. Prestress can be effectively applied to the externally wrapped fiber sheet for reinforcing the column, the thinner fiber sheet such as fiber cloth and the thicker fiber sheet such as a fiber board can be effectively clamped, higher prestress can be maintained, steel amount is reduced, reinforcing cost is saved, and construction is rapid and convenient, thereby facilitating promotion and application for engineering reinforcement.
Description
Technical field
The present invention relates to civil engineering technical field of transportation, the device and method of a kind of pre-stress fibre sheet material reinforced column.
Background technology
Due to material aging, construction quality, nature or the impact of the factor such as artificial, existing a lot of reinforced concrete works
Urgency is the most to be repaired and reinforces, and countries in the world will expend huge fund every year for this.Fibre sheet material has lightweight, high-strength, corrosion-resistant,
Fibre sheet material is pasted onto component surface tension, can strengthen and improve the stress performance of component.But to armored concrete
Post, only with fibre sheet material outsourcing reinforcement technique, is a kind of passive enforcement technology, has Stress resort, to operational phase
Performance is without improvement, the shortcoming that bearing capacity increase rate is limited.Use the big fibre sheet material of rigidity and to its Shi Hanzhang
It is the effective ways solving above-mentioned engineering problem.By to fibre sheet material Shi Hanzhang, and anchored by special anchorage
On reinforced column, it is possible to increase the rate of utilization of strength of fibre sheet material, can preferably improve the use rank being reinforced post
The performance of section, the development of effective control critical eigenvalue, reduces the deformation of post, becomes passive enforcement actively reinforcing.By prestressing force
Technology transfer fibre sheet material external application reinforced column has very important meaning and effect.But having had not yet to see can be in actual work
The device and method of the pre-stress fibre sheet material reinforced column of Cheng Yingyong, rarely seen dress having a small amount of prestressed fiber cloth reinforced post
Put, but be only limitted to laboratory indoor application, it is impossible to large-scale promotion in engineering；And for thicker pre-stress fibre plate,
It is only used for reinforcing slab plate at present, there is not yet the devices and methods therefor of pre-stress fibre plate reinforced column.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of pre-stress fibre sheet material to reinforce
The device and method of post.
Technical scheme: for solving above-mentioned technical problem, the device of a kind of pre-stress fibre sheet material reinforced column of the present invention, bag
Include fixing end anchorage, the stretching end anchorage being anchored on concrete column, convex with what fixing end anchorage, stretching end anchorage were connected
Type hydraulic jack；Also including two points of clip type fixtures, the cylinder with cap is welded in clip type fixture upper surface, embedding
The sleeve being placed on outside cylinder is connected in convex hydraulic jack by compression bar；Fibre sheet material one end is by the intermediate plate of stretching end
Formula holder, the other end is anchored in fixing end anchorage.
Wherein, fixing end anchorage, stretching end anchorage are made up of anchor cup, intermediate plate, and have two groups of screwed holes on anchor cup, and one
Group hole is for plant anchor in post, and another group hole connects fixing end anchorage, stretching end anchorage and convex hydraulic pressure for screw rod
Jack.
Wherein, convex hydraulic jack is shaped as convex, hydraulic jack and convex steel sleeve connect and form, and it passes through
Two wing plates of convex steel sleeve are fixed on fixing end anchorage and stretching end anchorage.
Wherein, two points of clip type fixtures are made up of two anchor cups and intermediate plate, and two anchor cups are connected by high-strength bolt.
Wherein, the diameter of sleeve is more than the diameter of cylinder, and the height of sleeve is identical with cylinder, and sleeve can be at cylinder and post
Under the constraint of cap freely rotatable.
Wherein, during fibre sheet material is carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
One, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre are multiple
Close sheet material.
A kind of method of pre-stress fibre sheet material reinforced column, comprises the following steps:
(1) planting bolt on concrete column, fixing end anchorage, stretching end anchorage are secured by bolts on post；
(2) fibre sheet material is anchored in two points of clip type fixtures through the anchor cup of stretching end anchorage, two ends respectively by intermediate plate
With fixing end anchorage；
(3) convex hydraulic jack is anchored on stretching end anchorage；
(4) connecting compression bar and cylinder, top-pressing jack, to fibre sheet material Shi Hanzhang；
(5) after fibre sheet material prestressing force reaches requirement, intermediate plate wedging is entered anchoring fiber in the anchor cup of stretching end anchorage
Sheet material；
(6) unload the screw rod of two points of clip type fixtures, reach prestressing force and put the purpose opened, and remove two points of clip types folders
Tool and convex hydraulic jack.
Wherein, during fibre sheet material is carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
One, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre are multiple
Close sheet material.
Beneficial effect: the device and method of a kind of pre-stress fibre sheet material reinforced column of the present invention, has the advantages that
1. can Shi Hanzhang effective to the fibre sheet material of the reinforced column of outsourcing such that it is able to improve the intensity of fibre sheet material
Utilization rate, can preferably improve the performance of the operational phase being reinforced post, the development of effective control critical eigenvalue, reduce the change of post
Shape, becomes passive enforcement actively reinforcing.
2. can the effective thicker fibre sheet material such as relatively thin fibre sheet material and fibre board such as gripping fibers cloth, and can keep relatively
High prestressing force.
3. can improve the rate of utilization of strength of fibre sheet material due to Shi Hanzhang, thus before improving identical bearing capacity
Put, the consumption of fibre sheet material can be greatly saved, and owing to, in addition to two anchorages, other components are the most repeatable to be made
With, reduce rolled steel dosage, save reinforcement cost.
4. construction is quick and convenient, conveniently promotes the use of in engineering reinforcement.
Accompanying drawing explanation
Fig. 1 is 3 D stereo schematic diagram of the present invention；
Fig. 2 is the top view of the device of pre-stress fibre sheet material reinforced column of the present invention；
Fig. 3 is the front view of the device of pre-stress fibre sheet material reinforced column of the present invention；
Fig. 4 is the front view of the convex hydraulic jack of the present invention；
Fig. 5 is the upward view of the convex hydraulic jack of the present invention.
In figure: 1 fixing end anchorage, 2 high-strength bolts, 3 convex hydraulic jack, 4 two points of clip type fixtures,
5 caps, 6 cylinders, 7 sleeves, 8 compression bars, 9 fibre sheet materials, 10 stretching end anchorages, 11 coagulations
Earth pillar, 12 hydraulic jack, 13 convex steel sleeves.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
Such as Fig. 1, shown in Fig. 2, Fig. 3, the device of a kind of pre-stress fibre sheet material reinforced column of the present invention, including anchoring
Fixing end anchorage 1 on concrete column 11, stretching end anchorage 10, with fixing end anchorage 1, stretching end anchorage 10 even
The convex hydraulic jack 3 connect；Also including two points of clip type fixtures 4, the cylinder 6 with cap 5 is welded in clip type
Fixture 4 upper surface, the sleeve 7 being nested in outside cylinder 6 is connected in convex hydraulic jack 3 by compression bar 8；Fine
Dimension sheet material 9 one end is clamped by the clip type fixture 4 of stretching end, and the other end is anchored in fixing end anchorage 1, fixing end anchorage
1, stretching end anchorage 10 is made up of anchor cup, intermediate plate, and has two groups of screwed holes on anchor cup, and one group of hole is for plant anchor
On post, another group hole connects fixing end anchorage 1, stretching end anchorage 10 and convex hydraulic jack 3 for screw rod, convex
Type hydraulic jack 3 is shaped as convex, hydraulic jack 12 and convex steel sleeve 13 connect and form, and it passes through convex
13 two wing plates of steel sleeve are fixed on fixing end anchorage 1 and stretching end anchorage 10.Two points of clip type fixtures 4 are by two
Anchor cup and intermediate plate composition, two anchor cups are connected by high-strength bolt 2, and the diameter of sleeve 7 is more than the diameter of cylinder 6, set
The height of cylinder 7 is identical with cylinder 6, and sleeve 7 can be freely rotatable under the constraint of cylinder 6 and cap 5, fibre sheet material
9 is the one in carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic, or carbon is fine
Dimension sheet material, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet.Wherein, Gu
Fixed end anchorage and stretching end anchorage have 12 screwed holes of 4 row, and wherein interior two rows are by high-strength bolt bar planting with cylinder even
Connecing, outer two rows are connected with convex hydraulic jack, in order to fixing convex hydraulic jack by high-strength bolt.Sleeve diameter
Bigger 1mm than cylinder, it is ensured that sleeve can be freely rotatable under the constraint of cylinder and cap, but can not move up and down, from
And realize hinged purpose.Two points of clip type fixtures have 6 screwed holes of 2 row, separate by two by high-strength bolt
Anchor cup is assembled into an anchor cup.Wherein, convex hydraulic jack 3 is shaped as convex, by hydraulic jack 12 and convex
Steel sleeve 13 connects composition, and it is fixed on fixing end anchorage 1 and stretching end anchorage by 13 two wing plates of convex steel sleeve
On 10.
The present invention also provides for a kind of method of pre-stress fibre sheet material reinforced column, comprises the following steps:
(1) planting bolt 2 on concrete column 11, fixing end anchorage 1, stretching end anchorage 10 are fixed on by bolt 2
On post；
(2) fibre sheet material 9 is anchored in two points of clip types through the anchor cup of stretching end anchorage 10, two ends respectively by intermediate plate
Fixture 4 and fixing end anchorage 1；
(3) convex hydraulic jack 3 is anchored on stretching end anchorage 10；
(4) connecting compression bar 8 and cylinder 6, top-pressing jack, to fibre sheet material 9 Shi Hanzhang；
(5) after fibre sheet material 9 prestressing force reaches requirement, intermediate plate wedging is entered in the anchor cup of stretching end anchorage 10 fixing
Fibre sheet material 9；
(6) unload the screw rod of two points of clip type fixtures 4, reach prestressing force and put the purpose opened, and remove two points of clip types
Fixture 4 and convex hydraulic jack 3, finally carry out spraying the surface protection measure of mortar.
Fibre sheet material 9 is in carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
Kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet
Material.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (8)
1. the device of a pre-stress fibre sheet material reinforced column, it is characterised in that: include being anchored in concrete column (11)
On fixing end anchorage (1), stretching end anchorage (10), be connected with fixing end anchorage (1), stretching end anchorage (10)
Convex hydraulic jack (3)；Also including two points of clip type fixtures (4), the cylinder (6) with cap (5) welds
In clip type fixture (4) upper surface, it is nested in cylinder (6) sleeve (7) outward and is connected to convex by compression bar (8)
In type hydraulic jack (3)；Fibre sheet material (9) one end is clamped by the clip type fixture (4) of stretching end, the other end
It is anchored in fixing end anchorage (1).
The device of a kind of pre-stress fibre sheet material reinforced column the most according to claim 1, it is characterised in that: wherein,
Fixing end anchorage (1), stretching end anchorage (10) are made up of anchor cup, intermediate plate, and have two groups of screwed holes on anchor cup, and one
Group hole is for plant anchor in post, and another group hole connects fixing end anchorage (1), stretching end anchorage (10) for screw rod
With convex hydraulic jack (3).
The device of a kind of pre-stress fibre sheet material reinforced column the most according to claim 1, it is characterised in that: wherein,
Convex hydraulic jack (3) is shaped as convex, hydraulic jack (12) and convex steel sleeve (13) connect and form,
It is fixed on fixing end anchorage (1) and stretching end anchorage (10) by (13) two wing plates of convex steel sleeve.
The device of a kind of pre-stress fibre sheet material reinforced column the most according to claim 1, it is characterised in that: wherein,
Two points of clip type fixtures (4) are made up of two anchor cups and intermediate plate, and two anchor cups are connected by high-strength bolt (2).
The device of a kind of pre-stress fibre sheet material reinforced column the most according to claim 1, it is characterised in that: wherein,
The diameter of sleeve (7) is more than the diameter of cylinder (6), and the height of sleeve (7) is identical with cylinder (6), sleeve (7)
Can be freely rotatable under the constraint of cylinder (6) and cap (5).
The device of a kind of pre-stress fibre sheet material reinforced column the most according to claim 1, it is characterised in that: wherein,
Fibre sheet material (9) is in carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
Kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet
Material.
7. the method for a pre-stress fibre sheet material reinforced column, it is characterised in that comprise the following steps:
(1) planting bolt (2) on concrete column (11), fixing end anchorage (1), stretching end anchorage (10) pass through
Bolt (2) is fixed on post；
(2) fibre sheet material (9) is anchored in two points through the anchor cup of stretching end anchorage (10), two ends respectively by intermediate plate
Clip type fixture (4) and fixing end anchorage (1)；
(3) convex hydraulic jack (3) is anchored on stretching end anchorage (10)；
(4) connecting compression bar (8) and cylinder (6), top-pressing jack, to fibre sheet material (9) Shi Hanzhang；
(5) after fibre sheet material (9) prestressing force reaches requirement, intermediate plate wedging is entered the anchor cup of stretching end anchorage (10)
Middle anchoring fiber sheet material (9)；
(6) unload the screw rod of two points of clip type fixtures (4), reach prestressing force and put the purpose opened, and remove two points of intermediate plates
Formula fixture (4) and convex hydraulic jack (3).
The method of a kind of pre-stress fibre sheet material reinforced column the most according to claim 7, it is characterised in that: wherein,
Fibre sheet material (9) is in carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
Kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343980.4A CN105937306B (en) | 2016-05-20 | 2016-05-20 | A kind of device and method of pre-stress fibre sheet material reinforced column |
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|---|---|---|---|
| CN201610343980.4A CN105937306B (en) | 2016-05-20 | 2016-05-20 | A kind of device and method of pre-stress fibre sheet material reinforced column |
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| CN105937306A true CN105937306A (en) | 2016-09-14 |
| CN105937306B CN105937306B (en) | 2018-05-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268893A (en) * | 2017-05-24 | 2017-10-20 | 山东英特力新材料有限公司 | A kind of spliced pre-stressed carbon fiber plate load-bearing pillar |
| CN108824229A (en) * | 2018-08-28 | 2018-11-16 | 南京林业大学 | A kind of reinforcement bridge submerged structure FRP shell circumferential direction bridging method |
| CN110565547A (en) * | 2019-10-17 | 2019-12-13 | 北京市市政四建设工程有限责任公司 | Inclined leg steel bridge supporting and jacking reinforcing device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3114830A1 (en) * | 2020-10-06 | 2022-04-08 | Pericles Innovation Scsp Intellectual Property And It Certificate | Method for renovating or reinforcing a construction element by at least one elongated reinforcement and device for tensioning such an elongated reinforcement |
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| JPH06280346A (en) * | 1993-03-25 | 1994-10-04 | Kajima Corp | Construction method for manufacture prestressed concrete member |
| CN101736912A (en) * | 2009-12-03 | 2010-06-16 | 吴智深 | Anchorage method based on technique of bonding and reinforcement outside prestressed fiber cloth |
| CN201778500U (en) * | 2010-08-16 | 2011-03-30 | 合肥工业大学 | Device for pretensioning carbon fiber board to reinforce concrete beam board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268893A (en) * | 2017-05-24 | 2017-10-20 | 山东英特力新材料有限公司 | A kind of spliced pre-stressed carbon fiber plate load-bearing pillar |
| CN108824229A (en) * | 2018-08-28 | 2018-11-16 | 南京林业大学 | A kind of reinforcement bridge submerged structure FRP shell circumferential direction bridging method |
| CN108824229B (en) * | 2018-08-28 | 2023-11-10 | 南京林业大学 | Annular lapping method for FRP shell of reinforced bridge underwater structure |
| CN110565547A (en) * | 2019-10-17 | 2019-12-13 | 北京市市政四建设工程有限责任公司 | Inclined leg steel bridge supporting and jacking reinforcing device and method |
| CN110565547B (en) * | 2019-10-17 | 2020-06-26 | 北京市市政四建设工程有限责任公司 | Inclined leg steel bridge supporting and jacking reinforcing device and method |
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| CN105937306B (en) | 2018-05-11 |
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