CN106969973A - A kind of FRP concrete filled steel tubes cylindrical member fixing device and its installation method - Google Patents
A kind of FRP concrete filled steel tubes cylindrical member fixing device and its installation method Download PDFInfo
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- CN106969973A CN106969973A CN201710137626.0A CN201710137626A CN106969973A CN 106969973 A CN106969973 A CN 106969973A CN 201710137626 A CN201710137626 A CN 201710137626A CN 106969973 A CN106969973 A CN 106969973A
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- Prior art keywords
- frp
- support bar
- bottom plate
- jacking block
- concrete
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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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of FRP concrete filled steel tubes cylindrical member fixing device, including bottom plate, support bar and jacking block, the support bar is set to multiple, and is uniformly fixedly installed on the cross centre line of the bottom plate；The jacking block is slidably mounted at the upper end of the support bar, and the center of the bottom plate is provided with FRP steel pipe concrete cylindricals；When jacking block slides into the outer surface of top pressure FRP steel pipe concrete cylindricals, jacking block fixes the upper end for locking onto the support bar.FRP steel pipe concrete cylindrical top pressures are fixed on bottom plate by the present invention using support bar and jacking block, form an entirety, FRP steel pipes concrete cylindrical is set to be fixedly installed in using the method for welding on bottom plate, and then enable at the trial FRP steel pipes concrete cylindrical in axle center while be pressurized, prevent that steel pipe due to being destroyed in advance by local stress in loading procedure.
Description
Technical field
The invention belongs to Architectural Equipment technical field, a kind of FRP- concrete filled steel tubes cylindrical member fixing device is referred in particular to
And its installation method.
Background technology
The material aging of concrete structure, structural behaviour deterioration are irreversible processes, for this concrete durability
Problem, scholars propose a variety of combining forms to concrete column structure and its mechanical property studied, such as steel pipe
Confined concrete structure, FRP (fibre reinforced composites) confined concretes structure, FRP constraint concrete filled steel tube etc..Its
In, most of FRP constraint concrete filled steel tube is on existing steel tube confined concrete architecture basics, in steel tube surface ring
The reinforcing of structure is carried out to parcel FRP fiber cloths.In order to make the contraction of concrete drop to most when laboratory carries out axial compression test
It is few, it is ensured that steel pipe and concrete are pressurized and effectively transmit load simultaneously, and common practices is that concrete filled steel tube is pouring coagulation
Before soil, first steel pipe one end is welded on the responsible steel plate for undertaking and transmitting load tailor-made in advance, then from the steel pipe other end
Add concrete to be poured, after standard curing 28 days, the concrete surface at non-foot plate end lays gypsic horizon, then
Steel plate is burn-on, steel core concrete column of the two ends with steel plate is eventually formed.
But, for the FRP- steel pipes produced in batches with prefabricated form of tubes, above-mentioned structures and methods are not suitable for
The construction of FRP- steel pipes.The preparation method of FRP- steel pipes is that steel pipe as winding FRP mould installion are plugged into
In rotating shaft, steel tube surface is pre-processed, glass coarse sand bucket is then driven by machine rotation mandrel, by the winding angle of setting
Filament is wrapped in progress overall height winding on steel pipe by ± 80 ° of degree, and the FRP and steel pipe of formation are an entirety, both height phases
With and closely bond.In the axial compression tests of concrete filled steel tubular member, the pressure-bearing of used forcing press is on the one hand tested
There is wear problem in plate, the breach that bearing plate is produced due to abrasion etc. can cause concrete filled steel tube in axle in long-term use
There are problems that steel pipe is likely due to be destroyed in advance by local stress in local stress, loading procedure, makes in pressure experiment
Must test to be normally carried out, and result of the test accuracy is poor；On the other hand, after FRP- steel pipes complete, pouring
Can not be using the way for directly welding steel sole plate when building, FRP material is fibre reinforced composites, in nexine steel pipe and bottom plate
The high temperature produced during welding can burn the FRP material of outer layer end damage, and have can for the high temperature produced by welding
Steel sole plate can be made to deform to cause out-of-flatness, the accuracy to result of the test causes very big influence.
The content of the invention
It is an object of the invention in view of the above-mentioned problems, a kind of simple in construction, deflection of offer is small and reliable and stable
FRP- concrete filled steel tube cylindrical member fixing devices and its installation method.
The purpose of the present invention can be reached using following technical scheme：
A kind of FRP- concrete filled steel tubes cylindrical member fixing device and its installation method, including bottom plate, support bar and jacking block,
The support bar is set to multiple, and is uniformly fixedly installed on the cross centre line of the bottom plate；The jacking block is slidably mounted
In the upper end of the support bar, the center of the bottom plate is provided with FRP- steel pipe concrete cylindricals；Top pressure is slided into jacking block
During the outer surface of FRP- steel pipe concrete cylindricals, jacking block fixes the upper end for locking onto the support bar.
As a kind of preferred scheme, the bottom plate and support bar are ferrous materials, and the support bar is uniform by welding
On the cross centre line for being fixedly installed in the bottom plate.
As a kind of preferred scheme, inverted " t " type elongated slot is provided with the side on the cross centre line of the bottom plate
Mouthful, the lower end of the support bar is " scholar " font structure, and the lower end of the support bar is sheathed in the long rabbet；In support bar
When sliding into relevant position, support bar is installed on bottom plate by being welded and fixed.
As a kind of preferred scheme, long slot bore and through hole are had on the upper end of the jacking block and support bar, on top
When block slides into the outer surface of top pressure FRP- steel pipe concrete cylindricals, and connector consolidates jacking block through long slot bore and through hole
Determine onto support bar.
As a kind of preferred scheme, the jacking block is mounted on the two sides of the support bar.
A kind of installation method of FRP- concrete filled steel tubes cylindrical member fixing device, comprises the following steps：
1) draw and justify with FRP- steel pipe concrete circular column diameters identical by the center of circle of the center of bottom plate；Poured in circle
After upper gypsum, the bottom surface of FRP- steel pipe concrete cylindricals is fitted on gypsic horizon and overlapped with circle, then FRP- steel is answered
The gypsum that conjunction pipe concrete cylindrical edge overflow comes out is cleaned out；
2) epoxide-resin glue is coated in the engagement edge of FRP- steel pipes concrete cylindrical and bottom plate；
3) lower end of support bar is sheathed in long rabbet, after correct position is slided into, support bar be welded and fixed
On bottom plate；
4) two jacking blocks are installed on to the upper end of support bar, slidable adjustment jacking block by connector and make jacking block top pressure FRP-
The outer surface of steel pipe concrete cylindrical, then locks connector.
Implement the present invention, have the advantages that：
1st, FRP- steel pipe concrete cylindrical top pressures are fixed on bottom plate by the present invention using support bar and jacking block, are formed
One entirety, makes FRP- steel pipes concrete cylindrical to be fixedly installed in using the method for welding on bottom plate, and then cause
FRP- steel pipes concrete cylindrical can be pressurized simultaneously in axle center at the trial, prevent that steel pipe is due to by part in loading procedure
Stress and be destroyed in advance.
It is 2nd, of the invention because FRP- steel pipes concrete cylindrical need not be fixedly installed on bottom plate using the method for welding,
Without producing welding deformation, the height produced during solving existing FRP- steel pipes concrete cylindrical and bottom plate welding
The FRP material of outer layer end can be burnt damages by temperature, and weld produced high temperature there is a possibility that steel sole plate deform from
And cause out-of-flatness, the problem of having a strong impact on result of the test accuracy, with the small and reliable and stable spy of simple in construction, deflection
Point.
3rd, the present invention may be such that support by the cooperation of inverted " t " type long rabbet and " scholar " font structure of support bar lower end
Bar can be exactly on the cross centre line of bottom plate, it is ensured that can equably support FRP- steel in the presence of support bar by top pressure
Multiple tube concrete cylindrical.And position of the convenient regulation support bar of the structure on the cross centre line of bottom plate, is applicable to
The FRP- steel pipe concrete cylindricals of different-diameter size, it is wide and versatility is high using scope.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of FRP- concrete filled steel tubes cylindrical member fixing device of the present invention；
Fig. 2 is the side view of the bottom plate of FRP- concrete filled steel tubes cylindrical member fixing device of the present invention；
Fig. 3 is the structure chart of the support bar of FRP- concrete filled steel tubes cylindrical member fixing device of the present invention；
Fig. 4 is Fig. 3 side view；
Fig. 5 is the side view of the jacking block of FRP- concrete filled steel tubes cylindrical member fixing device of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment
Referring to figs. 1 to Fig. 5, the present embodiment is related to FRP- concrete filled steel tube cylindrical member fixing devices, including bottom plate 1, branch
Strut 2 and jacking block 3, the support bar 2 are set to multiple, and are uniformly fixedly installed on the cross centre line of the bottom plate 1；It is described
Jacking block 3 is slidably mounted at the upper end of the support bar 2, and the center of the bottom plate 1 is provided with FRP- steel pipe concrete cylindricals
4；When jacking block 3 slides into the outer surface of top pressure FRP- steel pipes concrete cylindrical 4, jacking block 3 is fixed and lock onto the support
The upper end of bar 2.
The top pressure of FRP- steel pipes concrete cylindrical 4 is fixed on bottom plate 1 by the fixing device using support bar 2 and jacking block 3
On, an entirety is formed, FRP- steel pipes concrete cylindrical 4 is fixedly installed in using the method for welding on bottom plate 1,
And then enable at the trial FRP- steel pipes concrete cylindrical 4 in axle center while be pressurized, prevent in loading procedure steel pipe by
It is destroyed in advance in by local stress.
Because FRP- steel pipes concrete cylindrical 4 need not be fixedly installed on bottom plate 1 using the method for welding, without
Welding deformation is produced, the high temperature meeting produced during solving existing FRP- steel pipes concrete cylindrical 4 and the welding of bottom plate 1
The FRP material of outer layer end is burnt damage, and welds produced high temperature there is a possibility that steel sole plate 1 deforms to lead
Cause out-of-flatness, the problem of having a strong impact on result of the test accuracy, with simple in construction, deflection it is small and reliable and stable the characteristics of.
As shown in Figure 1 to Figure 3, the bottom plate 1 and support bar 2 are ferrous materials, and the support bar 2 is uniform solid by welding
On cross centre line of the Dingan County loaded on the bottom plate 1.The suitable position on the cross centre line that support bar 2 is adjusted to bottom plate 1
After putting, support bar 2 is fixed on bottom plate 1 by welding, makes support bar 2 and the formation integrative-structure of bottom plate 1 so that support bar
2 can be supported to FRP- steel pipes concrete cylindrical 4.
Inverted " t " type long rabbet 11 is provided with the side on the cross centre line of the bottom plate 1, the support bar 2
Lower end is " scholar " font structure, and the lower end of the support bar 2 is sheathed in the long rabbet 11；Slided into accordingly in support bar 2
During position, support bar 2 is installed on bottom plate 1 by being welded and fixed.Pass through inverted " t " type long rabbet 11 and the lower end of support bar 2
The cooperation of " scholar " font structure, may be such that support bar 2 can be exactly on the cross centre line of bottom plate 1, it is ensured that support bar 2
FRP- steel pipes concrete cylindrical 4 can be equably supported by top pressure under effect.And the convenient regulation support bar 2 of the structure exists
Position on the cross centre line of bottom plate 1, is applicable to the FRP- steel pipes concrete cylindrical 4 of different-diameter size, uses
Scope is wide and versatility is high.
Long slot bore 31 and through hole 21 are had on the upper end of the jacking block 3 and support bar 2, top pressure is slided into jacking block 3
During the outer surface of FRP- steel pipes concrete cylindrical 4, jacking block 3 is fixed to branch by connector through long slot bore 31 and through hole 21
On strut 2.After support bar 2 is fixedly installed on bottom plate 1, it can suppress jacking block 3 by adjusting jacking block 3 in position
The outer surface of FRP- steel pipes concrete cylindrical 4, bottom is fixedly installed in by the outer surface of FRP- steel pipes concrete cylindrical 4
On plate 1, flexible structure and easy to adjust is applicable to the FRP- steel pipes concrete cylindrical 4 of different-diameter size, uses model
Enclose wide and versatility high.
In order to improve uniformity of the jacking block 3 to the active force of FRP- steel pipes concrete cylindrical 4, and then improve FRP- steel
The jacking block 3 is mounted on the steadiness that multiple tube concrete cylindrical 4 is installed, the two sides of the support bar 2.
The present embodiment also provides a kind of installation method of FRP- concrete filled steel tubes cylindrical member fixing device, including following step
Suddenly：
1) draw and justify with the diameter identical of FRP- steel pipes concrete cylindrical 4 by the center of circle of the center of bottom plate 1；In circle
Water after gypsum, the bottom surface of FRP- steel pipes concrete cylindrical 4 is fitted on gypsic horizon and overlapped with circle, then by FRP- steel
The gypsum that the edge overflow of multiple tube concrete cylindrical 4 comes out is cleaned out；
2) epoxide-resin glue is coated in the engagement edge of FRP- steel pipes concrete cylindrical 4 and bottom plate 1；More preferably, should
Supporting two kinds of glue of a, b are compared 3 by epoxide-resin glue using sika (west card) 330 epoxy resin according to weight:1 blends, and is formed most
Whole required epoxide-resin glue；
3) lower end of support bar 2 is sheathed in long rabbet 11, after correct position is slided into, support bar 2 is welded solid
Determine onto bottom plate 1；
4) two jacking blocks 3 are installed on to the upper end of support bar 2, slidable adjustment jacking block 3 by connector and make the top pressure of jacking block 3
The outer surface of FRP- steel pipes concrete cylindrical 4, then locks connector.
The top pressure of FRP- steel pipes concrete cylindrical 4 is fixed on bottom plate 1 by this method using support bar 2 and jacking block 3, shape
Into an entirety, FRP- steel pipes concrete cylindrical 4 is set to be fixedly installed in using the method for welding on bottom plate 1, and then
Enable at the trial FRP- steel pipes concrete cylindrical 4 in axle center while be pressurized, prevent in loading procedure steel pipe due to by
It is destroyed in advance to local stress.And welding deformation will not be produced, it is small and reliable and stable with simple in construction, deflection
Advantage.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (6)
1. a kind of FRP- concrete filled steel tubes cylindrical member fixing device, it is characterised in that：Including bottom plate, support bar and jacking block, institute
State support bar and be set to multiple, and be uniformly fixedly installed on the cross centre line of the bottom plate；The jacking block is slidably mounted at
The upper end of the support bar, the center of the bottom plate is provided with FRP- steel pipe concrete cylindricals；Top pressure is slided into jacking block
During the outer surface of FRP- steel pipe concrete cylindricals, jacking block fixes the upper end for locking onto the support bar.
2. a kind of FRP- concrete filled steel tubes cylindrical member fixing device according to claim 1, it is characterised in that：The bottom
Plate and support bar are ferrous materials, and the support bar is uniformly fixedly installed on the cross centre line of the bottom plate by welding.
3. a kind of FRP- concrete filled steel tubes cylindrical member fixing device according to claim 1, it is characterised in that：Positioned at institute
State and inverted " t " type long rabbet be provided with the side on the cross centre line of bottom plate, the lower end of the support bar is " scholar " font structure,
The lower end of the support bar is sheathed in the long rabbet；When support bar slides into relevant position, support bar is solid by welding
Dingan County is loaded on bottom plate.
4. a kind of FRP- concrete filled steel tubes cylindrical member fixing device according to claim 1, it is characterised in that：The top
Long slot bore and through hole are had on the upper end of block and support bar, top pressure FRP- steel pipe concrete cylindricals are slided into jacking block
Outer surface when, jacking block is fixed on support bar by connector through long slot bore and through hole.
5. a kind of FRP- concrete filled steel tubes cylindrical member fixing device according to claim 1, it is characterised in that：The branch
The jacking block is mounted on the two sides of strut.
6. a kind of installation method of the FRP- concrete filled steel tube cylindrical member fixing devices described in claim 1, it is characterised in that：
Comprise the following steps：
1) draw and justify with FRP- steel pipe concrete circular column diameters identical by the center of circle of the center of bottom plate；Stone is watered in circle
After cream, the bottom surface of FRP- steel pipe concrete cylindricals is fitted on gypsic horizon and overlapped with circle, then by FRP- steel pipes
The gypsum that concrete cylindrical edge overflow comes out is cleaned out；
2) epoxide-resin glue is coated in the engagement edge of FRP- steel pipes concrete cylindrical and bottom plate；
3) lower end of support bar is sheathed in long rabbet, after correct position is slided into, support bar is welded and fixed bottom plate
On；
4) two jacking blocks are installed on to the upper end of support bar, slidable adjustment jacking block by connector and jacking block top pressure FRP- steel is answered
The outer surface of pipe concrete cylinder is closed, connector is then locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137626.0A CN106969973A (en) | 2017-03-09 | 2017-03-09 | A kind of FRP concrete filled steel tubes cylindrical member fixing device and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137626.0A CN106969973A (en) | 2017-03-09 | 2017-03-09 | A kind of FRP concrete filled steel tubes cylindrical member fixing device and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969973A true CN106969973A (en) | 2017-07-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710137626.0A Pending CN106969973A (en) | 2017-03-09 | 2017-03-09 | A kind of FRP concrete filled steel tubes cylindrical member fixing device and its installation method |
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| CN (1) | CN106969973A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301633A (en) * | 2018-10-09 | 2019-02-01 | 深圳飞骧科技有限公司 | A kind of SMA connector |
| CN109781366A (en) * | 2019-01-14 | 2019-05-21 | 内蒙古科技大学 | A kind of rectangular top pipe tunnel F type bell and spigot joint by curved test method |
| CN111024496A (en) * | 2019-11-28 | 2020-04-17 | 中国建筑第八工程局有限公司 | Force transmission device for anti-pulling test and detection method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080786A (en) * | 1992-06-27 | 1994-01-12 | 胡健争 | Attaching plug and pin |
| CN104076171A (en) * | 2013-03-30 | 2014-10-01 | 刘亚东 | Dielectric filter testing fixing device |
| CN104931341A (en) * | 2015-06-12 | 2015-09-23 | 合肥工业大学 | Sleeve joint applied to metal compression members having remarkable welding heat influence |
-
2017
- 2017-03-09 CN CN201710137626.0A patent/CN106969973A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080786A (en) * | 1992-06-27 | 1994-01-12 | 胡健争 | Attaching plug and pin |
| CN104076171A (en) * | 2013-03-30 | 2014-10-01 | 刘亚东 | Dielectric filter testing fixing device |
| CN104931341A (en) * | 2015-06-12 | 2015-09-23 | 合肥工业大学 | Sleeve joint applied to metal compression members having remarkable welding heat influence |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301633A (en) * | 2018-10-09 | 2019-02-01 | 深圳飞骧科技有限公司 | A kind of SMA connector |
| CN109781366A (en) * | 2019-01-14 | 2019-05-21 | 内蒙古科技大学 | A kind of rectangular top pipe tunnel F type bell and spigot joint by curved test method |
| CN111024496A (en) * | 2019-11-28 | 2020-04-17 | 中国建筑第八工程局有限公司 | Force transmission device for anti-pulling test and detection method thereof |
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Application publication date: 20170721 |