CN106337532A - Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof - Google Patents
Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof Download PDFInfo
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- CN106337532A CN106337532A CN201610725134.9A CN201610725134A CN106337532A CN 106337532 A CN106337532 A CN 106337532A CN 201610725134 A CN201610725134 A CN 201610725134A CN 106337532 A CN106337532 A CN 106337532A
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- pipe
- concrete
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- tooth
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Revetment (AREA)
Abstract
The present invention discloses a double-toothed-connection-component inner double-walled pipe combination member and a manufacturing method thereof. The double-toothed-connection-component inner double-walled pipe combination member comprises an outer pipe and an inner pipe, wherein concrete is filled between the outer pipe and the inner pipe, and toothed connection components are formed on the inner wall of the outer pipe and the outer wall of the inner pipe.
Description
Technical field
The present invention relates to building element technical field, more particularly, to a kind of biobelt tooth connector double-wall pipe combined member and its
Manufacture method.
Background technology
Double-wall pipe combined member is a kind of new structural elements, due to its reasonable stress and construction convenient and efficient, in recent years
To be applied to more and more in civilian industry building and science of bridge building structure.This component be by outer tube, inner tube with
And it is cast in the concrete composition of two pipe clamp layers or inside.Inner and outer pipes can be all frp pipe or the steel pipe of various materials, but in two pipes
At least one is steel pipe, thus the version of inner and outer pipes and Combined concrete have double-walled steel pipe hollow or solid combining form,
Three kinds of the solid combinative structure form of outer frp pipe-interior steel pipe hollow or solid combinative structure form and outer steel pipe-interior frp pipe.?
In double-walled steel pipe combined member and outer frp pipe-interior steel pipe double-walled combining form, outside frp pipe or steel pipe mainly give to mix
The restraining forceies of solidifying soil ring, thus improve the comprcssive strength of concrete and the shear-carrying capacity of component；Internal steel pipe mainly provides
Axial bearing capacity, and give concrete ring to constraint, and internal steel pipe itself is acted on by outer concrete, suppress or
Slow down the generation of the flexing of interior steel pipe；Outer tube and the effect of contraction of the concrete to interlayer for the inner tube, make sandwich concrete be in
Three dimension stress state, thus improve comprcssive strength and the deformability of sandwich concrete itself.Additionally, the presence of outer tube can
Effectively protect concrete and the steel pipe of inside, thus improving the endurance quality of component.And manage solid group in outer steel pipe-interior frp
Close in component, built-in frp pipe can effectively constrain core concrete, drastically increases the intensity of core concrete；And
The concrete of outside steel pipe major constraints non-core heart district is it is ensured that the ductility of component；Meanwhile, concrete presence it can be avoided that or
Person delays the flexing of outside steel pipe.Double-wall pipe combined member can give full play to that steel pipe comprcssive strength is high, deformability strong or/and
Frp pipe tensile strength is high, corrosion resistance and good and Concrete Filled can improve stiffness of structural member and the advantage of axial compression power, simultaneously outer
Pipe and inner tube can serve as permanent formwork in the construction stage, and construction is convenient.Practical Project practice is shown with experimental study,
Double-wall pipe combined member has the advantages that high capacity, ductility is good, easy construction and anti-seismic performance are good.
For double-wall pipe composite member, research all assumes that component tube wall is continuous with the strain of concrete, but
Actually their strain non-fully continuous, has certain sliding and adhesion strength, especially between tube wall and concrete
Be centering, long component bear axial compressive force or bear larger moment load component obvious.By to steel pipe and concrete
Between average bond intensity test, find concrete filled steel tube component average bond intensity between 0.2-0.4mpa, its value
The adhesion strength being substantially wrapped among concrete than reinforcing bar is low, and wherein plain bar adhesion strength is 1.5-3.5mpa, band
The adhesion strength of rib reinforcement is 2.5-6.0mpa.
Further, since the making of double-walled combined member typically first sets up inner and outer pipes as template, sandwich concrete filling
The more difficult control of quality, in addition in concrete coagulation hardening process, the shrinkable impact of concrete itself, tube wall and coagulation pedosphere
The cohesive force in face is easily weakened or even eliminates, and leads to concrete to come to nothing in pipe, that is, the boundary of concrete and tube wall occurs
The unsticking in face and shearing slip.Act on particularly in the case of seismic loading bearing moment load, rely on merely structure
Cohesive force between part tube wall and concrete bearing interface shear stress, often produces larger relative between concrete and tube wall
Sliding, causes frp pipe or steel pipe and concrete to be unable to collaborative work, reduces the overall performance of component.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide a kind of biobelt tooth connector double-wall pipe combination structure
Part, including outer tube and inner tube, is filled with concrete, wherein in the inwall of outer tube and the outer wall of inner tube between outer tube and inner tube
On be all formed with connector with tooth.
Preferably, described outer tube and inner tube are respectively steel pipe or fpr pipe, and in both at least one be steel pipe；
And if only if, and outer tube is steel pipe, and when inner tube is fpr pipe, inner tube is filled or unfilled with concrete, when outer tube and inner tube are other group
During conjunction, inner tube is all not filled with concrete.
Preferably, the cross sectional shape of described outer tube and inner tube includes circle, oval and rectangle.
Preferably, described concrete is normal concrete, self-compacting concrete, and high performance concrete or regeneration aggregate mix
Solidifying soil.
Preferably, described connector with tooth is the isosceles triangle of welding or the isosceles triangle of V-shaped reinforcing bar or bonding
Frp plate connector, and be arranged on the tube wall surface contacting with concrete and connector place plane and component longitudinal direction phase
With.
Preferably, the axial spacing of described connector with tooth is not less than 50mm and no more than 200mm, its circumferential distance
Not less than 50mm and no more than 300mm.
Preferably, when described connector with tooth is triangular steel plate or frp plate, its thickness is not less than 3mm and little
In pipe thickness, its projecting height be not less than 20mm and no more than sandwich concrete thickness 1/2, its length be not less than 20mm and
Slenderness ratio is not more than 15.
Preferably, when described connector with tooth is V-shaped reinforcing bar, its diameter is not less than 6mm and is not more than times thickness of pipe wall
Degree；Its most advanced and sophisticated projecting height be not less than 20mm and no more than sandwich concrete thickness 1/2；Its Opening length be not less than 20mm and
And it is not more than times bar diameter.
Additionally, the present invention also provides a kind of manufacture method of biobelt tooth connector double-wall pipe combined member, walk including following
Rapid:
S1. isosceles triangle steel plate connector by monoblock steel plate cutting form, V-shaped reinforcing bar bent using Ribbed Bar and
Become；
S2. isosceles triangle frp plate connector is processed by two-way fibre board, the direction of fiber respectively with isoceles triangle
Shape two waist is parallel, and in frp plate, fiber volume fraction must not be less than 60%, and carries out surface frosted process to frp plate；
S3. steel-pipe welding surface is carried out with the dust removal process that eliminates rust, frp pipe adhesive surface carries out decontaminating grinding process；
S4. isosceles triangle steel plate base or V-shaped reinforcing bar two-port are welded on by steel tube surface using electroslag pressure welding, adopt
With epoxide-resin glue, isosceles triangle frp plate base is pasted onto frp pipe surface；
S5. mixing concrete, is cast between two pipes after step s4 is processed or inside pipe.
The invention has the beneficial effects as follows:
(1) whole structural stability is preferable.The tube wall surface that the present invention is contacted with concrete in double-wall pipe combined member
Upper setting connector with tooth.The presence of connector with tooth can improve the performance of concrete members and tube wall interface, reduces coagulation
Bond-slip between soil and inner and outer pipes it is ensured that concrete and frp or steel pipe collaborative work, thus improve element mechanics performance and
Endurance quality.And compared to peg class shear connector, this tooth shape connector becomes apparent to structural integrity raising.
(2) improve element bearing capacity.The present invention passes through in steel tube surface welding connector with tooth and glues in frp tube wall surface
Adhesive tape tooth connector, decreases the Relative sliding between concrete and inner and outer pipes, simplifies concrete to the biography of steel pipe or frp pipe
Power path, increased the interface shearing-resistance bearing capacity of tube wall and concrete, and then improves the bending resistance shearing resistance of structural beams and structural column
Anti-pressure ability.
(3) improve structure ductility.Steel reinforced concrete ultrashort post Experiment on Hysteretic Behavior result of study is shown, is provided with connection
The shear-carrying capacity of ultrashort post of part, ductility, deformability and energy-dissipating property significantly improve, and are provided with the ultrashort post of connector
Deformability is about the twice of connectionless part component, and the anti-seismic performance of structure is greatly improved.Shearing compared to lamellar and tabular
Connector, this tooth shape connector, the impact to stiffness of structural member is less, is unlikely to too greatly to improve structure integral rigidity.
(4) construction economy is simple and direct.The present invention welds connector with tooth and in frp pipe surface stickup company with tooth in steel tube surface
Fitting, need not complicated and equipment that required precision is high and technology, and all manufacturing procedures all can be prefabricated in the factory and complete, in construction
Scene directly serves as model sheetinstallat after-pouring, and construction technology is easy, economical and efficient.In addition, the connector of component is alternatively arranged as admittedly
Determine and positioner, conveniently lift and transport.
(5) engineering adaptability is strong.The biobelt tooth connector double-wall pipe combined member of the present invention, frp pipe can be protected effectively
In shield, steel pipe, concrete and connector are not corroded by poor environment, and steel pipe can be by existing ripe solder technology and structure
Other components connect, and the filling of concrete slow down connector destroying under being acted on by external load, enables this combined member
Adapt to several functions version and requirement of engineering.
In sum, biobelt tooth connector double-wall pipe combined member of the present invention passes through in component inner and outer pipes and concrete interface
The upper mode arranging connector with tooth, improves the interface performance between tube wall and concrete, strengthens inner and outer pipes and concrete
Combined effect, improve bearing capacity and the ductility of component.The present invention can enrich and develop double-walled combined member design and
Application, has higher economic benefit and practical value.
Brief description
Fig. 1 is the side sectional view of the present invention.
Fig. 2 is the face cross-sectional view of the present invention.
Wherein, 1- outer tube, 2- inner tube, 3- concrete, 4- connector with tooth.
Specific embodiment
In conjunction with the drawings and specific embodiments, claimed technical solution of the invention is described in further detail.
Referring to shown in accompanying drawing 1 and accompanying drawing 2, a kind of biobelt tooth connector 4 double-wall pipe combined member of the present embodiment, including outer
Pipe 1 and inner tube 2, are filled with concrete 3 between outer tube 1 and inner tube 2, wherein on the inwall of outer tube 1 and the outer wall of inner tube 2
All it is formed with connector 4 with tooth.In the present embodiment, double-wall pipe combined member is in hollow-core construction, i.e. inner tube 2 inner hollow,
Need to replace with solid construction also dependent on actual in other embodiment, be similarly filled with concrete 3 inside inner tube 2.
In the present embodiment, its inner tube 2 be round steel pipe, its outer tube 1 be fpr manage, in other embodiments the material of outer tube 1 can be or
One of frp or steel, but its inner tube 2 is necessary for steel；Additionally can be according to actual needs by outer tube 1 and inner tube 2
Cross sectional shape replaces with circle, ellipse and rectangle etc..Concrete 3 in the present embodiment is normal concrete 3, self-compaction coagulation
Soil 3, high performance concrete 3 or regenerated aggregate concrete 3.
In the present embodiment, connector 4 with tooth is isosceles triangle and the isosceles triangle frp plate connector of welding, and
It is arranged on identical with component longitudinal direction with the tube wall surface that concrete 3 contacts and connector place plane.Wherein, company with tooth
The axial spacing of fitting 4 is not less than 50mm and no more than 200mm, and its circumferential distance is not less than 50mm and no more than 300mm.It is thick
Degree not less than 3mm and no more than pipe thickness, its projecting height be not less than 20mm and no more than sandwich concrete 3 thickness 1/2,
Its length is not less than 20mm and slenderness ratio is not more than 15.
In other embodiments, connector 4 with tooth can be the V-shaped reinforcing bar of welding, when described connector with tooth 4 is v
During steel bar, its diameter is not less than 6mm and no more than 2 times pipe thicknesses；Its most advanced and sophisticated projecting height is not less than 20mm and is not more than
The 1/2 of sandwich concrete 3 thickness；Its Opening length is not less than 20mm and no more than 5 times bar diameters.
The manufacture method of the biobelt tooth connector 4 double-wall pipe combined member of the present embodiment, comprises the following steps:
S1. isosceles triangle steel plate connector by monoblock steel plate cutting form, V-shaped reinforcing bar bent using Ribbed Bar and
Become；
S2. isosceles triangle frp plate connector is processed by two-way fibre board, the direction of fiber respectively with isoceles triangle
Shape two waist is parallel, and in frp plate, fiber volume fraction must not be less than 60%, and carries out surface frosted process to frp plate；
S3. steel-pipe welding surface is carried out with the dust removal process that eliminates rust, frp pipe adhesive surface carries out decontaminating grinding process；
S4. isosceles triangle steel plate base or V-shaped reinforcing bar two-port are welded on by steel tube surface using electroslag pressure welding, adopt
With epoxide-resin glue, isosceles triangle frp plate base is pasted onto frp pipe surface；
S5. mixing concrete 3, is cast between two pipes after step s4 is processed or inside pipe.
The embodiment of the above is only presently preferred embodiments of the present invention, and not the present invention is done with any pro forma limit
System.Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, can be utilized the disclosure above
Technology contents technical solution of the present invention is made with more possible variations and retouching, or the equivalence enforcement being revised as equivalent variations
Example.Therefore all contents without departing from technical solution of the present invention, the equivalent equivalence changes made according to the thinking of the present invention, all should cover
In protection scope of the present invention.
Claims (9)
1. a kind of biobelt tooth connector double-wall pipe combined member, including outer tube (1) and inner tube (2) it is characterised in that: in outer tube
(1) it is filled with concrete (3) and inner tube (2) between, wherein all shape on the inwall of outer tube (1) and the outer wall of inner tube (2)
There is connector with tooth (4).
2. a kind of biobelt tooth connector double-wall pipe combined member according to claim 1 it is characterised in that: described outer tube
(1) and inner tube (2) be respectively steel pipe or fpr pipe, and in both at least one be steel pipe；And if only if, and outer tube (1) is
Steel pipe, when inner tube (2) is fpr pipe, inner tube (2) fill concrete (3), when outer tube (1) and inner tube (2) are other combination, interior
Pipe (2) is all not filled with concrete (3).
3. a kind of biobelt tooth connector double-wall pipe combined member according to claim 1 it is characterised in that: described outer tube
And the cross sectional shape of inner tube (2) includes circle, oval and rectangle (1).
4. a kind of biobelt tooth connector double-wall pipe combined member according to claim 1 it is characterised in that: described coagulation
Native (3) are normal concrete, self-compacting concrete, high performance concrete or regenerated aggregate concrete.
5. a kind of biobelt tooth connector double-wall pipe combined member according to claim 1 it is characterised in that: described is with tooth
Connector (4) be welding isosceles triangle or V-shaped reinforcing bar or bonding isosceles triangle frp plate connector, and be arranged on
On the tube wall surface that concrete (3) contacts and connector place plane is identical with component longitudinal direction.
6. a kind of biobelt tooth connector double-wall pipe combined member according to claim 5 it is characterised in that: described is with tooth
The axial spacing of connector (4) is not less than 50mm and no more than 200mm, and its circumferential distance is not less than 50mm and no more than 300mm.
7. a kind of biobelt tooth connector double-wall pipe combined member according to claim 5 it is characterised in that: when described band
Tooth connector (4) is triangular steel plate or during frp plate, and its thickness is not less than 3mm and no more than pipe thickness, and its projecting height is not
Less than 20mm and no more than sandwich concrete (3) thickness 1/2, its length is not less than 20mm and slenderness ratio is not more than 15.
8. a kind of biobelt tooth connector double-wall pipe combined member according to claim 5 it is characterised in that: when described band
When tooth connector (4) is V-shaped reinforcing bar, its diameter is not less than 6mm and no more than 2 times pipe thicknesses；Its most advanced and sophisticated projecting height is not little
In 20mm and no more than sandwich concrete (3) thickness 1/2；Its Opening length is not less than 20mm and no more than 5 times bar diameters.
9. a kind of manufacture method of the biobelt tooth connector double-wall pipe combined member as described in claim 5-8 it is characterised in that
Comprise the following steps:
S1. isosceles triangle steel plate connector is formed by the cutting of monoblock steel plate, and V-shaped reinforcing bar is bent using Ribbed Bar and forms；
S2. isosceles triangle frp plate connector is processed by two-way fibre board, the direction of fiber respectively with isosceles triangle two
Waist is parallel, and in frp plate, fiber volume fraction must not be less than 60%, and carries out surface frosted process to frp plate；
S3. steel-pipe welding surface is carried out with the dust removal process that eliminates rust, frp pipe adhesive surface carries out decontaminating grinding process；
S4. isosceles triangle steel plate base or V-shaped reinforcing bar two-port are welded on by steel tube surface using electroslag pressure welding, using ring
Isosceles triangle frp plate base is pasted onto frp pipe surface by oxygen resin glue；
S5. mixing concrete (3), are cast between two pipes after step s4 is processed or inside pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725134.9A CN106337532A (en) | 2016-08-25 | 2016-08-25 | Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725134.9A CN106337532A (en) | 2016-08-25 | 2016-08-25 | Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN106337532A true CN106337532A (en) | 2017-01-18 |
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| CN201610725134.9A Pending CN106337532A (en) | 2016-08-25 | 2016-08-25 | Double-toothed-connection-component inner double-walled pipe combination member and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714401A (en) * | 2019-11-08 | 2020-01-21 | 南京林业大学 | FRP pipe sea water sea sand concrete-reinforced concrete composite beam |
| CN113530087A (en) * | 2021-08-06 | 2021-10-22 | 华东交通大学 | Hollow interlayer stiffening rib steel pipe concrete column |
| CN113640086A (en) * | 2021-08-27 | 2021-11-12 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete void detection test piece |
| CN113702128A (en) * | 2021-08-27 | 2021-11-26 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete test piece |
| CN114809452A (en) * | 2022-04-19 | 2022-07-29 | 广州大学 | Take steel core concrete column of wolf's teeth stem |
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| CN1975061A (en) * | 2006-12-25 | 2007-06-06 | 哈尔滨工业大学 | Steel reinforcement square, rectangular or polygonal steel pipe concrete column |
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| CN105133785A (en) * | 2015-08-18 | 2015-12-09 | 刁德斌 | Building concrete member embedded with Y-shaped reinforced beams |
| CN205171832U (en) * | 2015-10-19 | 2016-04-20 | 南阳理工学院 | Take stiffening rib steel core concrete column |
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| JP2001262775A (en) * | 2000-03-16 | 2001-09-26 | Nakajima Steel Pipe Co Ltd | Manufacturing method of steel pipe column and steel pipe column |
| CN1975061A (en) * | 2006-12-25 | 2007-06-06 | 哈尔滨工业大学 | Steel reinforcement square, rectangular or polygonal steel pipe concrete column |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110714401A (en) * | 2019-11-08 | 2020-01-21 | 南京林业大学 | FRP pipe sea water sea sand concrete-reinforced concrete composite beam |
| CN113530087A (en) * | 2021-08-06 | 2021-10-22 | 华东交通大学 | Hollow interlayer stiffening rib steel pipe concrete column |
| CN113640086A (en) * | 2021-08-27 | 2021-11-12 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete void detection test piece |
| CN113702128A (en) * | 2021-08-27 | 2021-11-26 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete test piece |
| CN113640086B (en) * | 2021-08-27 | 2023-12-29 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel tube concrete void detection test piece |
| CN113702128B (en) * | 2021-08-27 | 2024-02-23 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of concrete filled steel tube test piece |
| CN114809452A (en) * | 2022-04-19 | 2022-07-29 | 广州大学 | Take steel core concrete column of wolf's teeth stem |
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Application publication date: 20170118 |
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