CN207892130U - A kind of steel core concrete column - Google Patents
A kind of steel core concrete column Download PDFInfo
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- CN207892130U CN207892130U CN201820140587.XU CN201820140587U CN207892130U CN 207892130 U CN207892130 U CN 207892130U CN 201820140587 U CN201820140587 U CN 201820140587U CN 207892130 U CN207892130 U CN 207892130U
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- steel pipe
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- concrete column
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Abstract
The utility model discloses a kind of steel core concrete column, including steel pipe, it is filled with concrete in steel pipe, FRP bands are circumferentially wound on the outer wall of steel pipe, and FRP bands are provided with Clearance Between Wound along the axial direction of steel pipe；Utilize the spaced package steel pipe of FRP items, it can not only solve the problems, such as that large-scale steel pipe concrete column must use thick walled steel tube or high strength steel pipe, and due to hoop effect, the bearing capacity and anti-seismic performance that steel core concrete column can also be improved effectively avoid steel pipe that surrender pre-buckling occurs, effectively play steel strength, reduce rolled steel dosage, and compared with full package, FRP dosages are less, stock utilization is high.
Description
Technical field
The utility model is related to building structure technology fields, more particularly to a kind of steel core concrete column.
Background technology
Steel core concrete column is fill concrete and the component that is formed in steel pipe, since it is with high capacity, ductility
The advantages that good, easy for construction, by more and more extensive for being used as load-bearing structure in skyscraper, industrial premises and bridge structure
Part.With advances in technology, the characteristics of large span, super high rise structure, makes structure have to, using wall thickness, high-strength steel pipe, increase
Dead load, and since steel pipe and concrete cannot destroy simultaneously when use, steel pipe is easy to happen surrender pre-buckling.Therefore,
How compression steel buckling is limited effectively to play steel strength, and raising pillar ductility, which is that one in Structural Engineering is important, asks
Topic.
Due to the factors such as the raising of design standard, time, geographical environment and natural calamity (such as earthquake), many steel pipes
All there is the problems such as loose peeling of Lack of support, concrete, crack in concrete column.The appearance of these problems, actual conditions are simultaneously
Do not allow its whole pushing over reconstruction, and takes technical measures appropriate to carry out reinforcement to it and more meet reality with consolidation process.
In order to extend the service life of steel core concrete column, reinforcing to steel core concrete column or it is transformed into the technology for being badly in need of solving and asks
Topic.
In recent years, fibre reinforced composites (English abbreviation FRP) are widely used in concrete structure and other structures
In reinforcing.FRP has the advantages that lightweight, high-strength, corrosion-resistant, endurance, construction are convenient, mixed using the full wrapped strengthening steel pipes of FRP
Solidifying earth pillar can improve binding effect, prevent the local buckling of steel pipe from deforming, play the function of double constraints.But FRP is wrapped up entirely
The axial deformation ability for reinforcing steel core concrete column is not high, is influenced by circumferential deformation ability.Simultaneously because Super High, greatly across
The design features such as degree, Practical Project required FRP amounts if in the form of wrapping up entirely are big, are unfavorable for FRP on steel core concrete column
It promotes and applies.
Therefore how a kind of light-weight, high capacity, the concrete filled steel tube that ductility is good and FRP material utilization rate is high are provided
Column is a technical problem that technical personnel in the field need to solve at present.
Utility model content
The purpose of this utility model is to provide a kind of steel core concrete column, and light-weight, high capacity, ductility is good and FRP
Stock utilization is high.
In order to solve the above technical problems, the utility model provides a kind of steel core concrete column, including steel pipe, in the steel pipe
Filled with concrete, FRP bands, axial direction of the FRP bands along the steel pipe are circumferentially wound on the outer wall of the steel pipe
It is provided with Clearance Between Wound.
Preferably, the FRP bands rotating are wound at equal intervals along the axial screw of the steel pipe.
Preferably, the angular range of the helical angle of the FRP helix winding is 5 ° -30 °, including endpoint value.
Preferably, including the FRP bands that circularize of multiple circumferential horizontal wraps along the steel pipe, and it is each described
FRP bands are arranged at equal intervals along the axial direction of the steel pipe.
Preferably, the machine direction of the FRP bands and the length direction of the FRP bands are consistent.
Preferably, the FRP bands are sticked to by bonding agent on the outer wall of the steel pipe.
Preferably, the concrete is the concrete for being mixed with swelling agent.
Steel core concrete column provided by the utility model, including steel pipe, steel pipe is interior to be filled with concrete, in the outer wall of steel pipe
Upper circumferential direction is wound with FRP bands, and FRP bands are provided with Clearance Between Wound along the axial direction of steel pipe；Utilize the spaced package steel of FRP items
Pipe can not only solve the problems, such as that large-scale steel pipe concrete column must use thick walled steel tube or high strength steel pipe, and due to ring
Bind round effect, additionally it is possible to the bearing capacity and anti-seismic performance for improving steel core concrete column effectively avoid steel pipe that surrender pre-buckling occurs,
Steel strength is effectively played, reduces rolled steel dosage, and compared with full package, FRP dosages are less, stock utilization is high, in addition,
FRP band lighter in weight so that steel core concrete column weightening is smaller.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of steel core concrete column provided by the utility model；
Fig. 2 is the structural schematic diagram of another specific implementation mode of steel core concrete column provided by the utility model；
Fig. 3 is a kind of vertical view of specific implementation mode of steel core concrete column provided by the utility model.
Specific implementation mode
The core of the utility model is to provide a kind of steel core concrete column, and light-weight, high capacity, ductility is good and FRP
Stock utilization is high.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It is a kind of specific implementation mode of steel core concrete column provided by the utility model to please refer to Fig.1 to Fig. 3, Fig. 1
Structural schematic diagram；Fig. 2 is that the structure of another specific implementation mode of steel core concrete column provided by the utility model is shown
It is intended to；Fig. 3 is a kind of vertical view of specific implementation mode of steel core concrete column provided by the utility model.
The steel core concrete column that specific embodiment of the present invention provides, including steel pipe 1, filled with mixed in steel pipe 1
Solidifying soil 2, is circumferentially wound with FRP bands 3, and FRP bands 3 are provided with along the axial direction of steel pipe 1 between winding on the outer wall of steel pipe 1
Gap.Wherein, the size of the width of FRP bands 3 and Clearance Between Wound can be according to the bearing capacity needed for 1 concrete of steel pipe, 2 column
To be arranged.
It is spaced package steel pipe 1 using FRP bands 3, can not only solve large-scale steel pipe concrete column must use thick walled steel tube
Or the problem of high strength steel pipe, and since with hoop effect, the bearing capacity and shock resistance of steel core concrete column can be improved
Can, it effectively avoids steel pipe 1 that surrender pre-buckling occurs, effectively plays 1 intensity of steel pipe, reduce rolled steel dosage, and compared with full package,
FRP dosages are less, and stock utilization is high, and can ensure the axial deformation ability of steel core concrete column, thus ductility is more preferable.Separately
Outside, 3 lighter in weight of FRP bands so that steel core concrete column weightening is smaller.
Specific embodiment of the present invention provide steel core concrete column, FRP bands 3 wind steel pipe 1 mode have it is more
Kind, in a specific embodiment, whole FRP band 3 may be used, and by FRP bands 3 along the axial with certain of steel pipe 1
Helical formula is wound at equal intervals, specifically can with wound clockwise, can also wrapped anti-clockwise, FRP bands 3 wind energy at equal intervals
It is enough that uniform restraining force is formed to steel pipe 1.
Wherein, the size of the helical angle of 3 spiral winding of FRP bands can be in the range of 5 ° to 30 ° (including endpoint value)
Adjustment, the specific size of helical angle can be selected according to the diameter of the width of FRP bands 3, steel pipe 1, as long as ensureing that steel pipe is mixed
The bearing capacity of solidifying earth pillar satisfies the use demand.
In another embodiment specific implementation mode, multiple FRP bands 3 can also be set, and each FRP bands 3 are along steel pipe 1
Circumferential horizontal wrap circularizes, and each FRP bands 3 can be disposed at equal intervals along the axial direction of steel pipe 1.It is of course also possible to according to steel
Pipe concrete column actual loading situation changes the canoe and spacing of FRP bands 3, and the application is not specifically limited this.
On the basis of above-mentioned each specific implementation mode, the concrete filled steel tube of specific embodiment of the present invention offer
Column, the length direction of the machine directions of FRP bands 3 preferably with FRP bands 3 are consistent, are wrapped in this way by FRP bands 3
When on steel pipe 1, the machine directions of FRP bands 3 along steel pipe 1 circumferential direction, when steel pipe 1 is placed vertically, the fiber side of FRP bands 3
To for horizontal direction or close to horizontal direction, the restraining force of steel core concrete column horizontal direction can be increased.
Further, to ensure the service life of steel core concrete column, the outer surface of steel pipe 1 can be done at conventional anti-corrosion
Reason forms erosion resistant coating in 1 outer surface of steel pipe.
Further, the steel core concrete column that specific embodiment of the present invention provides, FRP bands 3 can be by viscous
It connects agent to be sticked on the outer wall of steel pipe 1, specifically, bonding agent can be uniformly applied on FRP bands 3, keep FRP bands 3 complete
It squeezes and is wrapped on steel pipe 1 again after infiltration, it is fixed reliable, and the production is simple and convenient.
On the basis of above-mentioned each specific implementation mode, the concrete filled steel tube of specific embodiment of the present invention offer
The Fiber Materials of column, FRP bands 3 can be carbon fiber, glass fibre, basalt fibre, aramid fiber and strain PET/PEN greatly
One or more kinds of assorted fibres composition in fiber, the winding number of plies of the FRP bands 3 on steel pipe 1 can be according to reality
Component tightening force and deformation size requirements and the performance of selected material are different and change in the engineering of border, and specifically the winding number of plies can
Think 10 to 20 layers.
Further, concrete 2 can select normal concrete, high-strength concrete, super high strength concrete, lightweight aggregate coagulation
Soil, regenerated aggregate concrete, oligomer gel material concrete and self-compacting concrete etc., in the protection of the utility model
Within the scope of.
In addition, swelling agent can also be added in concrete 2, occur in use to avoid concrete 2 larger
It shrinks and causes the presence of cavity between steel pipe 1 and concrete 2, ensure the integrated carrying ability of steel core concrete column.
Further, the steel pipe 1 of steel core concrete column can select regular tenacity structural steel pipe or high-strength structure to use
Steel pipe can select carbon steel tubing, alloy pipe or stainless-steel pipe etc. according to material, and the specific size of steel pipe 1 can basis
Bearing capacity and bearing requirements are calculated and are designed.In addition, according to actual use demand, round steel pipe can be selected, can also be selected
With oval steel pipe, rectangular steel tube or rectangular steel pipe etc., it both is within the protection scope of the present invention.
Steel core concrete column provided by the utility model is described in detail above.It is used herein specifically a
Example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand this reality
With novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen
Enter in the protection domain of the utility model claims.
Claims (7)
1. a kind of steel core concrete column, including steel pipe, the steel pipe is interior to be filled with concrete, which is characterized in that in the steel pipe
Outer wall on be circumferentially wound with FRP bands, the FRP bands are provided with Clearance Between Wound along the axial direction of the steel pipe.
2. steel core concrete column according to claim 1, which is characterized in that axial direction of the FRP bands along the steel pipe
Spirally wind at equal intervals.
3. steel core concrete column according to claim 1, which is characterized in that the helical angle of the FRP helix winding
Angular range be 5 ° -30 °, including endpoint value.
4. steel core concrete column according to claim 1, which is characterized in that including multiple along the circumferential horizontal of the steel pipe
The FRP bands circularized are wound, and each FRP bands are arranged at equal intervals along the axial direction of the steel pipe.
5. steel core concrete column according to any one of claims 1 to 4, which is characterized in that the fiber of the FRP bands
Direction and the length direction of the FRP bands are consistent.
6. steel core concrete column according to claim 5, which is characterized in that the FRP bands are sticked to institute by bonding agent
It states on the outer wall of steel pipe.
7. steel core concrete column according to claim 6, which is characterized in that the concrete is the coagulation for being mixed with swelling agent
Soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820140587.XU CN207892130U (en) | 2018-01-26 | 2018-01-26 | A kind of steel core concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820140587.XU CN207892130U (en) | 2018-01-26 | 2018-01-26 | A kind of steel core concrete column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207892130U true CN207892130U (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820140587.XU Active CN207892130U (en) | 2018-01-26 | 2018-01-26 | A kind of steel core concrete column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277925A (en) * | 2018-01-26 | 2018-07-13 | 广东工业大学 | A kind of steel core concrete column and its manufacturing method |
-
2018
- 2018-01-26 CN CN201820140587.XU patent/CN207892130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277925A (en) * | 2018-01-26 | 2018-07-13 | 广东工业大学 | A kind of steel core concrete column and its manufacturing method |
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