CN205777097U - Concrete filled steel tube support column - Google Patents
Concrete filled steel tube support column Download PDFInfo
- Publication number
- CN205777097U CN205777097U CN201620497474.6U CN201620497474U CN205777097U CN 205777097 U CN205777097 U CN 205777097U CN 201620497474 U CN201620497474 U CN 201620497474U CN 205777097 U CN205777097 U CN 205777097U
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- steel
- support column
- end plate
- concrete filled
- tube support
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Abstract
This utility model provides a kind of concrete filled steel tube support column, including: interior template, multiple main support unit and multiple connection unit；The cross section of interior template is annular, and interior template is set as the first receiving chamber of hollow with exterior sheathing for enclosing；Multiple main support units are disposed between the first receiving intracavity, and two the main support units being connected to use and connect unit connection；Main support unit includes: steel pipe, peripheral board and multiple longitudinal reinforcement, and steel pipe is arranged on peripheral board and encloses the second receiving intracavity set, and multiple longitudinal reinforcements are evenly distributed on the second receiving intracavity, and be arranged in parallel with steel pipe；It is coated with epoxy resin layer on the medial wall of steel pipe；Connecting unit to include: the first end plate, shaped steel, beam indulge muscle and beam stirrup, the first end plate is arranged on one end of shaped steel, and the first end plate uses dismountable mode to be connected with peripheral board；Beam is indulged muscle and is be arranged in parallel with shaped steel, and beam stirrup is around being located at shaped steel and the outside of Liang Zong muscle.
Description
Technical field
This utility model relates to the technical field of bridge, housing construction, especially relates to concrete filled steel tube support column.
Background technology
The component that concrete filled steel tube support column is steel pipe and concrete filled combines, the concrete of steel duct is subject to
The effect of contraction of steel pipe, improves its bearing capacity, and the existence of concrete also constrains the buckling failure that steel pipe is inside, therefore,
Concrete filled steel tube support column is widely applied in the field of bridge and housing construction.
When the beam span that concrete filled steel tube support column needs carrying is bigger, in order to enable this concrete filled steel tube support column
Resisting the horizontal loadings such as bigger wind load, earthquake load, in the prior art, constructor would generally continue to increase steel tube concrete
The cross-sectional area of soil support column；But, if enlarged cross section size improves the rigidity of concrete filled steel tube support column simply, its
The creeping of the concrete of middle large volume, shrinking and the most more prominent in the heat of hydration problem in hydrated cementitious stage, this will be to steel
Pipe concrete support column produces more adverse influence.
And, the problem of the structure durability of concrete filled steel tube support column be also one particularly significant and in the urgent need to address
Problem, by the extensive concern of all circles, especially in coastal and offshore area, by as a example by area, ocean, concrete filled steel tube props up
Dagger, owing to being corroded by marine environment, causes its durability poor；It is applied to coastal and offshore area concrete filled steel tube
Support column, pipe corrosion problem is severeer, and the most common anti-corrosion measure is usually zinc-plated or japanning, but anti-corrosion material is every
Nian Douhui has certain loss amount, needs the most zinc-plated or japanning after reaching certain time limit, and economic consumption is bigger.
Utility model content
The purpose of this utility model is to provide concrete filled steel tube support column, to solve present in prior art simply
The sectional dimension expanding concrete filled steel tube support column improves its rigidity, however wherein large volume the creeping of concrete, shrink
And the most more prominent in the heat of hydration problem in hydrated cementitious stage, concrete filled steel tube support column will be produced more disadvantageous by this
The technical problem of impact.
A kind of concrete filled steel tube support column that this utility model provides, including: interior template, multiple main support unit and multiple
Connect unit；The cross section of described interior template is annular, and described interior template is set as the first receiving of hollow with exterior sheathing for enclosing
Chamber；Multiple described main support units be disposed on described first accommodate intracavity, and be connected two described main support units it
Between use described connection unit to connect；
Described main support unit includes: steel pipe, peripheral board and multiple longitudinal reinforcement, and described steel pipe is arranged on described peripheral board
Enclose set second receiving intracavity, multiple described longitudinal reinforcements be evenly distributed on described second accommodate intracavity, and with described steel
Pipe be arranged in parallel；It is coated with epoxy resin layer on the medial wall of described steel pipe；
Described connection unit includes: the first end plate, shaped steel, beam indulge muscle and beam stirrup, and described first end plate is arranged on described
One end of shaped steel, described first end plate uses dismountable mode to be connected with described peripheral board；Described beam indulges muscle and described shaped steel
Be arrangeding in parallel, described beam stirrup is around being located at described shaped steel and described beam indulges the outside of muscle.
Further, the lateral wall of described steel pipe is coated with FRP material layer.
Further, also including monolateral bolt, described monolateral bolt is arranged on described first end plate and described peripheral board
The first through hole, thus fixing described first end plate and described peripheral board.
Further, described first end plate be shaped as plane or arc.
Further, the cross section of described steel pipe is square, rectangle or circle.
Further, the cross section of described shaped steel is I shape or cross.
Further, also including the unit that consumes energy, described power consumption unit is arranged on described interior template and encloses the 3rd receiving setting formation
Intracavity；
Described power consumption unit includes: trocar sheath and two block plates fit together, described steel plate is set in described overcoat
The inside of pipe, and the two ends of described steel plate are provided with two the second end plates, two described second end plate Parallel Symmetrics are arranged on
One end of described steel plate, and the cross section of these two described second end plates and described steel plate is I shape；
On described second end plate, a part away from described steel plate is positioned at the outside of described trocar sheath, and with described interior template
Dismountable mode is used to connect.
Further, the side that described second end plate is connected with described steel plate is filled with perforated foams.
Further, described steel plate is symmetrically arranged with projection, and described projection is along the width distribution of described steel plate.
Further, described interior template being provided with angle steel, described second end plate uses dismountable mode with described angle steel
Connect.
The concrete filled steel tube support column that this utility model provides, including: interior template, multiple main support unit and multiple connection
Unit；The cross section of interior template is annular, and interior template is set as the first receiving chamber of hollow with exterior sheathing for enclosing；Multiple main supports
Unit interval is arranged between the first receiving intracavity, and two the main support units being connected to use and connects unit connection；Main support
Unit includes: steel pipe, peripheral board and multiple longitudinal reinforcement, and steel pipe is arranged on peripheral board and encloses the second receiving intracavity set, many
Individual longitudinal reinforcement is evenly distributed on the second receiving intracavity, and be arranged in parallel with steel pipe；It is coated with asphalt mixtures modified by epoxy resin on the medial wall of steel pipe
Lipid layer；Connecting unit to include: the first end plate, shaped steel, beam indulge muscle and beam stirrup, the first end plate is arranged on one end of shaped steel, and first
End plate uses dismountable mode to be connected with peripheral board；Beam is indulged muscle and is be arranged in parallel with shaped steel, and beam stirrup is around being located at shaped steel and Liang Zong
The outside of muscle.
Above-mentioned concrete filled steel tube support column is actual is hollow structure, but accommodates intracavity first and be provided with multiple main support
Unit and multiple connection unit, therefore, in the case of ensureing concrete filled steel tube support column section rigidity, significantly reduce coagulation
The consumption of soil, it is possible to effectively alleviate the deadweight of whole concrete filled steel tube support column；And, first accommodates each component of intracavity
It is possible not only to be greatly improved shearing resistance and the anti-seismic performance of concrete filled steel tube support column, but also concrete filled steel tube can be undertaken and support
Load when post is constructed in the early stage, thus i.e. it is easy to construction, it is also possible to the substantially reduction of erection time；And, use multiple connection unit
Adjacent main support unit is linked together, it is also possible to improve the rigidity of main support unit further, thus steel pipe is risen
To protective effect；And use dismountable connected mode connection unit and main support unit to be linked together, make processing pacify
Fill convenient, but also welding residual stress and weldquality that Site Welding causes can be reduced to overall structure rigidity
Impact；Meanwhile, at the internal coat epoxy resin layer of steel pipe, so that the medial wall of the steel pipe concrete internal with it is kept apart
Come, make non-binding therebetween.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The cross sectional representation of the concrete filled steel tube support column that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the structural representation of the power consumption unit of the concrete filled steel tube support column shown in Fig. 1；
Fig. 3 is the E direction view of the power consumption unit shown in Fig. 2；
Fig. 4 is the structural representation of the steel plate of the power consumption unit shown in Fig. 2；
Fig. 5 is the sectional view in the A-A direction of the power consumption unit shown in Fig. 2；
Fig. 6 is the sectional view in the B-B direction of the power consumption unit shown in Fig. 2；
Fig. 7 is the sectional view in the C-C direction of the power consumption unit shown in Fig. 2；
The cross sectional representation of the concrete filled steel tube support column that Fig. 8 provides for another embodiment of the present embodiment；
The cross sectional representation of the concrete filled steel tube support column that Fig. 9 provides for the another embodiment of the present embodiment.
Reference:
Template in 1-；2-exterior sheathing；The main support unit of 3-；
4-connects unit；5-consumes energy unit；6-angle steel；
31-steel pipe；32-peripheral board；33-longitudinal reinforcement；
41-shaped steel；42-beam indulges muscle；43-beam stirrup；
The monolateral bolt of 44-；51-steel plate；52-trocar sheath；
53-the second end plate；54-perforated foams；55-is protruding；
56-the second through hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
The cross sectional representation of the concrete filled steel tube support column that Fig. 1 provides for this utility model embodiment；Fig. 2 is Fig. 1 institute
The structural representation of the power consumption unit of the concrete filled steel tube support column shown；Fig. 3 is the E direction view of the power consumption unit shown in Fig. 2；Figure
The structural representation that 4 is the steel plate of the power consumption unit shown in Fig. 2；Fig. 5 is the section view in the A-A direction of the power consumption unit shown in Fig. 2
Figure；Fig. 6 is the sectional view in the B-B direction of the power consumption unit shown in Fig. 2；Fig. 7 is the C-C direction of the power consumption unit shown in Fig. 2
Sectional view；The cross sectional representation of the concrete filled steel tube support column that Fig. 8 provides for another embodiment of the present embodiment；Fig. 9 is this reality
Execute the cross sectional representation of the concrete filled steel tube support column that the another embodiment of example provides.
As shown in figs 1-9, a kind of steel pipe 31 concrete support post that the present embodiment provides, including: interior template 1, Duo Gezhu
Support unit 3 and multiple connection unit 4；The cross section of interior template 1 is annular, and interior template 1 is set as hollow for enclosing with exterior sheathing 2
First receiving chamber；Multiple main support units 3 are disposed on the first receiving intracavity, and two the main support units 3 being connected it
Between use connect unit 4 connect；Main support unit 3 includes: steel pipe 31, peripheral board 32 and multiple longitudinal reinforcement 33, and steel pipe 31 sets
Putting and enclose, at peripheral board 32, the second receiving intracavity set, multiple longitudinal reinforcements 33 are evenly distributed on the second receiving intracavity, and with
Steel pipe 31 be arranged in parallel；It is coated with epoxy resin layer on the medial wall of steel pipe 31；Connect unit 4 to include: the first end plate, shaped steel
41, beam indulges muscle 42 and beam stirrup 43, and the first end plate is arranged on one end of shaped steel 41, and the first end plate and peripheral board 32 use detachably
Mode connect；Beam is indulged muscle 42 and is be arranged in parallel with shaped steel 41, and beam stirrup 43 is around the outside being located at shaped steel 41 and Liang Zong muscle 42.
The quantity of support unit can be multiple, such as: 4,6,8 etc.；As it is shown in figure 1, as a kind of preferably scheme
Support unit is 8, now connects unit 4 also corresponding for 8.
It should be noted that after steel pipe 31 concrete support post is built successfully, need to pour coagulation in each cavity
Soil, the kind of concrete can select according to actually used environment, such as, wait moist position coastal, then can select
Marine sand concrete.
On the basis of above-described embodiment, specifically, the cross section of steel pipe 31 is square, rectangle or circle.Need
Bright, the cross section of peripheral board 32 can also be square, rectangle or circle；It is, of course, preferable to, in order to make the first end plate and
Peripheral board 32 coordinates more firmly and closely, the shape of the first end plate should match with the cross section of peripheral board 32, i.e. the first end
Plate be shaped as plane or arc.
The shape of shaped steel 41 can have multiple choices, such as: cross or I shape etc..
The steel pipe 31 concrete support post that the present embodiment provides, including: interior template 1, multiple main support units 3 and multiple company
Order unit 4；The cross section of interior template 1 is annular, and interior template 1 is set as the first receiving chamber of hollow with exterior sheathing 2 for enclosing；Multiple
Main support unit 3 is disposed between the first receiving intracavity, and two the main support units 3 being connected to use and connects unit 4 even
Connect；Main support unit 3 includes: steel pipe 31, peripheral board 32 and multiple longitudinal reinforcement 33, steel pipe 31 be arranged on peripheral board 32 enclose set and
The the second receiving intracavity become, multiple longitudinal reinforcements 33 are evenly distributed on the second receiving intracavity, and be arranged in parallel with steel pipe 31；Steel pipe
It is coated with epoxy resin layer on the medial wall of 31；Connect unit 4 to include: the first end plate, shaped steel 41, beam indulge muscle 42 and beam stirrup
43, the first end plate is arranged on one end of shaped steel 41, and the first end plate uses dismountable mode to be connected with peripheral board 32；Beam indulges muscle 42
Be arrangeding in parallel with shaped steel 41, beam stirrup 43 is around the outside being located at shaped steel 41 and Liang Zong muscle 42.
Above-mentioned steel pipe 31 concrete support post is actual is hollow structure, but the first receiving intracavity is provided with multiple master and props up
Support unit 3 and multiple connection unit 4, therefore, in the case of ensureing steel pipe 31 concrete support column section rigidity, substantially reduce
The consumption of concrete, it is possible to effectively alleviate the deadweight of whole steel pipe 31 concrete support post；And, first accommodates intracavity
Each component is possible not only to be greatly improved shearing resistance and the anti-seismic performance of steel pipe 31 concrete support post, but also can undertake steel pipe
Load when 31 concrete support posts are constructed in the early stage, thus i.e. it is easy to construction, it is also possible to the substantially reduction of erection time；And, use
Adjacent main support unit 3 is linked together by multiple connection unit 4, it is also possible to improve the firm of main support unit 3 further
Degree, thus steel pipe 31 is played a protective role；And use dismountable connected mode will connect unit 4 and main support unit 3
Link together, make processing easier for installation, but also welding residual stress and weld seam that Site Welding causes can be reduced
The quality impact on overall structure rigidity；Meanwhile, at the internal coat epoxy resin layer of steel pipe 31, so that the inner side of steel pipe 31
The wall concrete internal with it is kept apart, and makes non-binding therebetween.
On the basis of above-described embodiment, specifically, the lateral wall of steel pipe 31 is coated with FRP material layer.
Due to steel pipe 31 outer cladding FRP material layer, it is to avoid steel pipe 31 directly contacts with external environment, significantly improves it resistance to
Property for a long time.
On the basis of above-described embodiment, specifically, also include monolateral bolt 44, monolateral bolt 44 through the first end plate and
The first through hole arranged on peripheral board 32, thus fix the first end plate and peripheral board 32.
Use the monolateral bolt 44 main support unit of on-the-spot splicing 3 and connect unit 4, overall frame can be erected rapidly
Shelf structure, convenient reinforcing bar binding and concreting further.
On the basis of above-described embodiment, specifically, also include that the unit 5 that consumes energy, power consumption unit 5 are arranged on interior template 1 and enclose
If the 3rd receiving intracavity formed；Power consumption unit 5 includes: trocar sheath 52 and two block plates 51 fit together, steel plate 51 overlaps
Being located at the inside of trocar sheath 52, and the two ends of steel plate 51 are provided with two the second end plates 53, two the second end plates 53 are parallel right
Claim the one end being arranged on steel plate 51, and the cross section of these two the second end plates 53 and steel plate 51 is I shape；On second end plate 53
A part away from steel plate 51 is positioned at the outside of trocar sheath 52, and uses dismountable mode to be connected with interior template 1.
Owing to current building increasingly tends to tall and bigization, break for making building structure have the external force such as stronger opposing earthquake
Bad ability, it is often necessary to set up power consumption unit 5 in frame structure；Common power consumption unit 5 is anti-buckling support, and this is prevented
Buckling support mostly typically is the supporting form of single kernel, therefore, when needing to realize bigger yield load, needs again to obtain relatively
When good fatigue behaviour and energy-dissipating property, above-mentioned power consumption unit 5 is often difficult to meet requirement.
Therefore, as illustrated in figs. 2-7, the power consumption unit 5 that the present embodiment provides includes by two block plates 51 fit together
Constitute with trocar sheath 52；Two block plates 51 just constitute the dissipative cell of dual core, arrange second in the end of steel plate 51 simultaneously
End plate 53, is expanded into I shape interface by steel plate 51, and when bearing axle power, two block plates 51 act on jointly, it is possible to achieve bigger
Yield load, and consume energy.
On the basis of above-described embodiment, specifically, the side that the second end plate 53 is connected with steel plate 51 is filled with porous bubble
Foam material 54.Adopt the structure the concreting that can facilitate within trocar sheath 52.
On the basis of above-described embodiment, specifically, as shown in Figure 2 and Figure 4, steel plate 51 is symmetrically arranged with protruding 55,
And projection 55 is along the width distribution of steel plate 51.Arranging protruding 55 is possible to prevent steel plate 51 and trocar sheath 52 in axially-movable
Time, there is sliding between the concrete in steel plate 51 and trocar sheath 52.
On the basis of above-described embodiment, specifically, interior template 1 being provided with angle steel 6, the second end plate 53 is adopted with angle steel 6
Connect by dismountable mode.Angle steel 6 is set and facilitates the connection of the second end plate 53 and interior template 1.
Specifically exist, on the second end plate 53 and be respectively provided with multiple second through hole 56 on angle steel 6, by bolt, the two is fastened
Together.
As shown in Figure 8 and Figure 9, power consumption unit 5 has a variety of selection, such as with the connected mode of interior template 1: at each layer
One power consumption unit 5 is only set, or two power consumption unit 5 are set at each layer, and one end of two power consumption unit 5 is connected to
On the same angle steel 6 of interior template 1.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, but those of ordinary skill in the art should
Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to wherein part or complete
Portion's technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality
The scope of novel each embodiment technical scheme.
Claims (10)
1. a concrete filled steel tube support column, it is characterised in that including: interior template, multiple main support unit and multiple connection list
Unit；The cross section of described interior template is annular, and described interior template is set as the first receiving chamber of hollow with exterior sheathing for enclosing；Multiple
Described main support unit is disposed on described first and accommodates employing institute between intracavity, and two the described main support units being connected
State connection unit to connect；
Described main support unit includes: steel pipe, peripheral board and multiple longitudinal reinforcement, and described steel pipe is arranged on described peripheral board and encloses and set
Second receiving intracavity, multiple described longitudinal reinforcements be evenly distributed on described second accommodate intracavity, and with described steel pipe put down
Row is arranged；It is coated with epoxy resin layer on the medial wall of described steel pipe；
Described connection unit includes: the first end plate, shaped steel, beam indulge muscle and beam stirrup, and described first end plate is arranged on described shaped steel
One end, described first end plate and described peripheral board use dismountable mode to be connected；It is parallel with described shaped steel that described beam indulges muscle
Arranging, described beam stirrup is around being located at described shaped steel and described beam indulges the outside of muscle.
Concrete filled steel tube support column the most according to claim 1, it is characterised in that be coated with on the lateral wall of described steel pipe
FRP material layer.
Concrete filled steel tube support column the most according to claim 1, it is characterised in that also include monolateral bolt, described monolateral
Bolt through the first through hole arranged on described first end plate and described peripheral board, thus fixing described first end plate and described outside
Coaming plate.
Concrete filled steel tube support column the most according to claim 1, it is characterised in that described first end plate be shaped as plane
Shape or arc.
Concrete filled steel tube support column the most according to claim 1, it is characterised in that the cross section of described steel pipe be square,
Rectangle or circle.
Concrete filled steel tube support column the most according to claim 1, it is characterised in that the cross section of described shaped steel is I shape
Or cross.
7. according to the concrete filled steel tube support column described in any one of claim 1-6, it is characterised in that also include the unit that consumes energy,
Described power consumption unit is arranged on described interior template and encloses the 3rd receiving intracavity setting formation；
Described power consumption unit includes: trocar sheath and two block plates fit together, described steel plate is set in described trocar sheath
Inside, and the two ends of described steel plate are provided with two the second end plates, two described second end plate Parallel Symmetrics are arranged on described
One end of steel plate, and the cross section of these two described second end plates and described steel plate is I shape；
On described second end plate, a part away from described steel plate is positioned at the outside of described trocar sheath, and uses with described interior template
Dismountable mode connects.
Concrete filled steel tube support column the most according to claim 7, it is characterised in that described second end plate is with described steel plate even
The side connect is filled with perforated foams.
Concrete filled steel tube support column the most according to claim 7, it is characterised in that be symmetrically arranged with convex on described steel plate
Rise, and described projection is along the width distribution of described steel plate.
Concrete filled steel tube support column the most according to claim 7, it is characterised in that be provided with angle steel in described interior template,
Described second end plate uses dismountable mode to be connected with described angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497474.6U CN205777097U (en) | 2016-05-27 | 2016-05-27 | Concrete filled steel tube support column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497474.6U CN205777097U (en) | 2016-05-27 | 2016-05-27 | Concrete filled steel tube support column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205777097U true CN205777097U (en) | 2016-12-07 |
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ID=57408195
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620497474.6U Expired - Fee Related CN205777097U (en) | 2016-05-27 | 2016-05-27 | Concrete filled steel tube support column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552464A (en) * | 2019-09-05 | 2019-12-10 | 上海欧本钢结构有限公司 | Column and manufacturing method thereof |
-
2016
- 2016-05-27 CN CN201620497474.6U patent/CN205777097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552464A (en) * | 2019-09-05 | 2019-12-10 | 上海欧本钢结构有限公司 | Column and manufacturing method thereof |
| CN110552464B (en) * | 2019-09-05 | 2021-11-05 | 上海欧本钢结构有限公司 | Column and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |