CN206467898U - Confined concrete coupled column inside and outside a kind of bamboo multiple tube steel pipe - Google Patents
Confined concrete coupled column inside and outside a kind of bamboo multiple tube steel pipe Download PDFInfo
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- CN206467898U CN206467898U CN201720069080.5U CN201720069080U CN206467898U CN 206467898 U CN206467898 U CN 206467898U CN 201720069080 U CN201720069080 U CN 201720069080U CN 206467898 U CN206467898 U CN 206467898U
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Abstract
Confined concrete coupled column inside and outside a kind of bamboo multiple tube steel pipe, it is characterized in that, its section ecto-entad is followed successively by bamboo multiple tube (1), sandwich concrete (2) and interior steel pipe (3) are constituted, bamboo multiple tube (1) includes separation layer (11) successively from the inside to the outside, bamboo fiber reinforcement composite bed (12) and external protection coating (13), bamboo fiber reinforcement composite bed (12) is wrapped in the solidification of separation layer (11) outer wall by the bamboo fiber continuous uniform of 1 layer and more than 1 layer of impregnating resin glue and formed, the machine direction of bamboo fiber is in 45 °~45 ° with bamboo multiple tube (1) ring, external protection coating (13) is coated in the outer surface of bamboo fiber reinforcement composite bed (12), interior steel pipe (3) is located at cross-sectional internal, sandwich concrete (2) is filled between bamboo multiple tube (1) and interior steel pipe (3), the boring of interior steel pipe (3).The structural bearing capacity is high, good rigidity, ductility is good, excellent earthquake resistance, with good workability and endurance quality, cross sectional moment of inertia is big, and concrete amount is saved, construction costs economy, and the bamboo resource of China's sustainable development is taken full advantage of, the high material sexual clorminance of bamboo wood good toughness, longitudinal tensile strength has been played to greatest extent.
Description
Technical field
The invention belongs to civil engineering structure technical field, and in particular to a kind of concrete combined structure, especially a kind of
Confined concrete coupled column inside and outside bamboo multiple tube-steel pipe.
Background technology
Concrete filled steel tube is a kind of new composite structure as formed by being inserted in steel pipe concrete.Because steel pipe is mixed
Xtah Crude Clay structure can more effectively play two kinds of respective advantages of material of steel and concrete, concrete can be made to be in the structure
Three dimension stress state, its compression strength can be significantly improved, while the shortcoming that local buckling easily occurs for steel-tube construction is overcome, work
Cheng Yingyong is increasingly extensive.Solid steel tube concrete is normally used for axial compression or the less bending component of load eccentricity.However,
When component slenderness ratio or larger load eccentricity, its bearing capacity will largely be controlled by its bending rigidity, now solid
Material of the concrete filled steel tube close to cross-section centroid position can not provide how many bending rigidity, but add the deadweight of component,
Member section is also larger simultaneously so that building and the effective of structures are reduced using space.
For the shortcoming and deficiency of above concrete filled steel tube, some new structure types are exploited.Such as China
Patent " 200910248425.3 " number, discloses a kind of " circular cross-section steel-concrete-FRP solid composite column ", the structural outside layers
For steel pipe, internal layer is fibre pipe, concrete is filled between two pipes and in FRP pipes, although the structure has steel tube concrete
Some Common advantages of soil and fiber pipe concrete, but the structured steel pipe is in structure outer wall, its corrosion resistance and fire protecting performance
It is solid in difference, and fibre pipe, concrete amount is added, can not meet economy in the application aspect of coarse scale structures component will
Ask.And for example Chinese Patent No. " 200710191092.6 " number, disclose a kind of " steel pipe-FRP pipe core concrete combination structure ",
The structure is by the steel pipe of lateral wall, and the FRP of madial wall is managed, and hollow pipe column formed by the concrete filled between the two,
The invention has good structure tension performance and anti-seismic performance, can reduce dead load and improve the bending rigidity of structure, but
It is due to that the structured steel pipe is in outer wall, under the conditions of long-term natural cause, corrosion damage easily occurs for steel pipe, causes structure to be held
Loading capability is reduced, and the FRP pipes in the structure use primary raw material for the fiber of high energy consumption, and resin is that petrochemical industry synthesizes system
Product, product and waste material be not recyclable, not environmentally, therefore uses this kind of traditional piping material, consumes substantial amounts of mineral resources and high energy
Consumption maximum discharge, resource are non-renewable.
The content of the invention
It is an object of the invention to provide confined concrete coupled column, the structural bearing capacity inside and outside a kind of bamboo multiple tube-steel pipe
High, good rigidity, ductility is good, excellent earthquake resistance, with good decay resistance, and cross sectional moment of inertia is big, concrete amount section
Save, construction costs economy, be especially suitable for the coarse scale structures component under adverse circumstances.
Confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe, it is characterised in that its section ecto-entad is followed successively by
Bamboo multiple tube, sandwich concrete and interior steel pipe are constituted, and bamboo multiple tube includes separation layer, bamboo fiber reinforcement and is combined successively from the inside to the outside
Layer and external protection coating, wherein, separation layer is impregnated by bamboo fiber felt, glass mat, basalt fibre felt or bamboo fibre non-woven fabrics
Resin glue continuous uniform wound and solidified is formed, and bamboo fiber reinforcement composite bed is fine by the bamboo wood of 1 layer and more than 1 layer of impregnating resin glue
Dimension continuous uniform is wrapped in the solidification of separation layer outer wall and formed, the machine direction of bamboo fiber and bamboo multiple tube ring in -45 °~
45 °, external protection coating is coated in the outer surface of bamboo fiber reinforcement composite bed, and interior steel pipe is located at cross-sectional internal, sandwich concrete filling
Between bamboo multiple tube and interior steel pipe, the boring of interior steel pipe.
In structure of the present invention, bamboo multiple tube, interior steel pipe are respectively that sandwich concrete pours offer outside and inner side template,
And the vertical load in work progress is undertaken, in structure service stage, bamboo multiple tube and external protection coating prevent for inner concrete
Carbonization and alkali-aggregate reaction provide protection, instead of traditional other tubing, reduce environmental pollution, economize on resources, meanwhile, it is internal
Steel pipe is respectively that sandwich concrete provides inside and outside portion's constraint with outside bamboo multiple tube so that sandwich concrete is in confined pressure state,
The bearing capacity of sandwich concrete, deformability are favorably lifted, and the presence of interlayer inner clip layer concrete prevents bamboo multiple tube
With the local buckling of interior steel pipe, its stability is improved, the boring of interior steel pipe reduces concrete amount, increases section
The moment of inertia, makes it possible that it is applied to big load situation.
The moisture content of described bamboo fiber is 6%~12%, and it is raw bamboo, bamboo glulam, bamboo material stacked material or bamboo
Material recombinant material processes from strand.
Described bamboo multiple tube and interior steel pipe can be respectively circular cross-section, elliptic cross-section, square-section, chamfering rectangle
One kind in section or circular and cross -section, the inside space set steel plate ribbed stiffener of interior steel pipe.
Longitudinal reinforcement and stirrup can be arranged inside described sandwich concrete as needed.
Described resin glue is one kind in phenolic resin, epoxy resin, vinylite, polyurethane resin.
Described external protection coating uses one in cement-base composite material, polymer matrix composites, asphalt-base composite materials
Kind, external protection coating directly coating is solidificated in the outer surface of the bamboo fiber reinforcement composite bed, improves the durability of structure.
Described sandwich concrete is self-compaction slightly expanded concrete, and expansion rate is 0.01%~0.04%.
Bamboo multiple tube used in the present invention is sufficiently used the bamboo resource of China's sustainable development, by traditional bamboo wood
Using in modern civil engineering construction applications.Instant invention overcomes known concrete filled steel tube, FRP pipe concretes structure institute
The defect of presence, has the advantages that：
(1) internal steel pipe is respectively that sandwich concrete provides inside and outside portion's constraint with outside steel pipe so that at sandwich concrete
In confined pressure state, the bearing capacity of sandwich concrete, deformability are favorably lifted；The presence of interlayer inner clip layer concrete is prevented
The local buckling of bamboo multiple tube and interior steel pipe, improves bamboo multiple tube and interior steel pipe stability.The combination output of multiple material
Beneficial combination benefit.
(2) bamboo multiple tube, interior steel pipe are respectively that sandwich concrete pours offer outside and inner side template, and undertake and constructed
Vertical load in journey, reduces infrastructure cost, accelerates speed of application.
(3) interior steel pipe provides the anti-bending bearing capacity of structure, boring can effective enlarged cross section size, improve its bending resistance firm
Degree, saves material, reduces construction costs.
(4) outside bamboo multiple tube and external protection coating, solve the work problem under structure erosion and special adverse environment,
Inner concrete is avoided to be carbonized and alkali-aggregate reaction.
(5) use of bamboo wood, instead of traditional steel, FRP material, and bamboo wood good toughness, longitudinal direction are played to greatest extent
The high material sexual clorminance of tensile strength, bamboo wood have low-carbon, environmental protection, energy-conservation, resource renewable in terms of advantage, meet " resource
The national policy requirement of economizing type ", " environmentally friendly ".
Brief description of the drawings：
Fig. 1 be bamboo multiple tube, interior steel pipe be inside and outside a kind of bamboo multiple tube-steel pipe of circular cross-section confined concrete combine
The cross-sectional configuration schematic diagram of post；
Fig. 2 is that bamboo multiple tube, interior steel pipe are confined concrete group inside and outside a kind of bamboo multiple tube-steel pipe of circular and cross -section
The cross-sectional configuration schematic diagram of zygostyle；
Fig. 3 is that the inside and outside constraint of a kind of bamboo multiple tube-steel pipe that bamboo multiple tube is circular cross-section, interior steel pipe is square-section is mixed
The cross-sectional configuration schematic diagram of solidifying local soil type zygostyle；
Fig. 4 be bamboo multiple tube be chamfering square-section, interior steel pipe be inside and outside a kind of bamboo multiple tube-steel pipe of circular cross-section about
The cross-sectional configuration schematic diagram of beam concrete combination column；
Fig. 5 be bamboo multiple tube be chamfering square-section, interior steel pipe be inside and outside a kind of bamboo multiple tube-steel pipe of square-section about
The cross-sectional configuration schematic diagram of beam concrete combination column；
Fig. 6 is that bamboo multiple tube, interior steel pipe are confined concrete inside and outside a kind of bamboo multiple tube-steel pipe of chamfering square-section
The cross-sectional configuration schematic diagram of coupled column；
In 1~accompanying drawing of accompanying drawing 6,1 is bamboo multiple tube；2 be sandwich concrete；3 be interior steel pipe；11 be separation layer；12 are
Bamboo fiber reinforcement composite bed；13 be external protection coating.
Embodiment：
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now control illustrates this hair
Bright embodiment.The present invention provides confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe, it is characterised in that
Its section ecto-entad is followed successively by bamboo multiple tube 1, sandwich concrete 2 and interior steel pipe 3 and constituted, and bamboo multiple tube 1 is from the inside to the outside successively
Including separation layer 11, bamboo fiber reinforcement composite bed 12 and external protection coating 13, wherein, separation layer 11 is by bamboo fiber felt, glass fibre
Felt, basalt fibre felt or bamboo fibre non-woven fabrics impregnating resin glue continuous uniform wound and solidified are formed, bamboo fiber reinforcement composite bed
12 are wrapped in the solidification of the outer wall of separation layer 11 by the bamboo fiber continuous uniform of 1 layer and more than 1 layer of impregnating resin glue forms, bamboo wood
The machine direction of fiber is in -45 °~45 ° with the ring of bamboo multiple tube 1, and external protection coating 13 is coated in bamboo fiber reinforcement composite bed 12
Outer surface, interior steel pipe 3 is located at cross-sectional internal, and sandwich concrete 2 is filled between bamboo multiple tube 1 and interior steel pipe 3, interior steel pipe 3
Boring.
The moisture content of described bamboo fiber is 6%~12%, and it is raw bamboo, bamboo glulam, bamboo material stacked material or bamboo
Material recombinant material processes from strand.
Described bamboo multiple tube 1 and interior steel pipe 3 can be respectively circular cross-section, elliptic cross-section, square-section, chamfering square
One kind in tee section or circular and cross -section, the inside space set steel plate ribbed stiffener of interior steel pipe 3.
Longitudinal reinforcement and stirrup can be arranged as needed inside described sandwich concrete 2.
Described resin glue is one kind in phenolic resin, epoxy resin, vinylite, polyurethane resin.
Described external protection coating 13 is using in cement-base composite material, polymer matrix composites, asphalt-base composite materials
It is a kind of.
Described sandwich concrete 2 is self-compaction slightly expanded concrete, and expansion rate is 0.01%~0.04%.
In specific implementation, first by predetermined cross-sectional shape and dimensioned bamboo multiple tube 1 and interior steel pipe 3, bamboo multiple tube 1 is by interior
To outside successively including separation layer 11, bamboo fiber reinforcement composite bed 12 and external protection coating 13.
The preparation of separation layer 11 is one layer of mould release film of parcel on polished straight tube mould, then with being stained with resin
Bamboo fiber felt, glass mat, basalt fibre felt or bamboo fibre non-woven fabrics continuous uniform be wound to specific thickness, thus
Form separation layer 11；Bamboo fiber reinforcement composite bed 12 is twined by the bamboo fiber continuous uniform of 1 layer and more than 1 layer of impregnating resin glue
It is wound on the solidification of the outer wall of separation layer 11 to form, machine direction and the ring of bamboo multiple tube 1 of bamboo fiber are in -45 °~45 °, when all
After winding operation is finished, bamboo fiber reinforcement composite bed 12 is solidify to form for pipe, then, external protection coating 13 can directly coat solid
Change in the outer surface of bamboo fiber reinforcement composite bed 12, external protection coating 13 can using cement-base composite material, polymer matrix composites,
One kind in asphalt-base composite materials；Interior steel pipe 3 can make shaping using welding procedure is rolled, in bamboo multiple tube 1 and interior steel pipe 3
Carry out its in-site installation after completing to fix, bamboo multiple tube 1 and interior steel pipe 3 are fixed on basis, and interior steel pipe 3 is located at bamboo multiple tube
In 1 section, its geometric centroid is preferably overlapped, finally, and sandwich concrete 2, interior steel pipe 3 are poured between bamboo multiple tube 1 and interior steel pipe 3
Boring, that is, form confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe.As needed, the inside of interior steel pipe 3 can
It is arranged at intervals around steel plate ribbed stiffener, steel plate ribbed stiffener and is welded to connect with steel duct, steel plate ribbed stiffener preferably uses hollow ring
Longitudinal reinforcement and stirrup can be arranged as needed inside form, sandwich concrete 2.
In the present invention, bamboo multiple tube, steel pipe, the combination application of sandwich concrete and hollow section take full advantage of China
The bamboo resource of sustainable development, has obtained a kind of economic, durable, function admirable new structure.
Claims (7)
1. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe, it is characterised in that its section ecto-entad is followed successively by bamboo
Multiple tube (1), sandwich concrete (2) and interior steel pipe (3) are constituted, bamboo multiple tube (1) include successively from the inside to the outside separation layer (11),
Bamboo fiber reinforcement composite bed (12) and external protection coating (13), wherein, separation layer (11) is by bamboo fiber felt, glass mat, the Black Warrior
Rock fibrofelt or bamboo fibre non-woven fabrics impregnating resin glue continuous uniform wound and solidified are formed, and bamboo fiber reinforcement composite bed (12) is by 1
The bamboo fiber continuous uniform of layer and more than 1 layer of impregnating resin glue is wrapped in the solidification of separation layer (11) outer wall and formed, and bamboo wood is fine
The machine direction of dimension is in -45 °~45 ° with bamboo multiple tube (1) ring, and external protection coating (13) is coated in bamboo fiber reinforcement composite bed
(12) outer surface, interior steel pipe (3) is located at cross-sectional internal, and sandwich concrete (2) is filled in bamboo multiple tube (1) and interior steel pipe (3)
Between, the boring of interior steel pipe (3).
2. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that bamboo
The moisture content of material fiber be 6%~12%, its be raw bamboo, bamboo glulam, bamboo material stacked material or bamboo wood recombinant material it is processed and
Into.
3. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that bamboo
Multiple tube (1) and interior steel pipe (3) can be respectively circular cross-section, elliptic cross-section, square-section, chamfering square-section or nose circle
One kind in tee section, the inside space set steel plate ribbed stiffener of interior steel pipe (3).
4. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that folder
Longitudinal reinforcement and stirrup can be arranged as needed inside layer concrete (2).
5. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that adopt
Resin glue is one kind in phenolic resin, epoxy resin, vinylite, polyurethane resin.
6. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that outer
Overcoat (13) is using one kind in cement-base composite material, polymer matrix composites, asphalt-base composite materials.
7. confined concrete coupled column inside and outside a kind of bamboo multiple tube-steel pipe according to claim 1, it is characterised in that folder
Layer concrete (2) is self-compaction slightly expanded concrete, and expansion rate is 0.01%~0.04%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069080.5U CN206467898U (en) | 2017-01-17 | 2017-01-17 | Confined concrete coupled column inside and outside a kind of bamboo multiple tube steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720069080.5U CN206467898U (en) | 2017-01-17 | 2017-01-17 | Confined concrete coupled column inside and outside a kind of bamboo multiple tube steel pipe |
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| CN206467898U true CN206467898U (en) | 2017-09-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532761A (en) * | 2018-05-29 | 2018-09-14 | 广东建设职业技术学院 | A kind of assembled steel tube-bamboo slab rubber combination node of column and beam and its assembly method |
| CN108894326A (en) * | 2018-07-24 | 2018-11-27 | 沈阳建筑大学 | A kind of combined member and assemble method |
-
2017
- 2017-01-17 CN CN201720069080.5U patent/CN206467898U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532761A (en) * | 2018-05-29 | 2018-09-14 | 广东建设职业技术学院 | A kind of assembled steel tube-bamboo slab rubber combination node of column and beam and its assembly method |
| CN108894326A (en) * | 2018-07-24 | 2018-11-27 | 沈阳建筑大学 | A kind of combined member and assemble method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang Heng An Civil Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000206 Denomination of utility model: Compound pipe of bamboo inside and outside confined concrete combination column of steel pipe Granted publication date: 20170905 License type: Common License Record date: 20181018 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hefei Shuang Dao run Highway Engineering Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000292 Denomination of utility model: Compound pipe of bamboo inside and outside confined concrete combination column of steel pipe Granted publication date: 20170905 License type: Common License Record date: 20181102 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Limited by Share Ltd Beijing nine road detection technology Assignor: Nanjing Forestry University Contract record no.: X2019320000056 Denomination of utility model: Compound pipe of bamboo inside and outside confined concrete combination column of steel pipe Granted publication date: 20170905 License type: Common License Record date: 20190912 |
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| EE01 | Entry into force of recordation of patent licensing contract |