CN108868001A - A kind of prefabricated steel tube binding type steel concrete column splicing node and its construction technology - Google Patents
A kind of prefabricated steel tube binding type steel concrete column splicing node and its construction technology Download PDFInfo
- Publication number
- CN108868001A CN108868001A CN201810723911.5A CN201810723911A CN108868001A CN 108868001 A CN108868001 A CN 108868001A CN 201810723911 A CN201810723911 A CN 201810723911A CN 108868001 A CN108868001 A CN 108868001A
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- China
- Prior art keywords
- steel pipe
- steel
- concrete
- splice region
- binding type
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- 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
Abstract
The present invention provides steel tube binding type steel concrete column splicing node and construction method, including：Prefabricated steel tube binding type steel concrete upper prop, prefabricated steel tube binding type steel concrete lower prop, splice region steel pipe, splice region cast-in-place concrete, fashioned iron butt weld, butt welding of steel tube seam composition.On the one hand splice region steel pipe can be used as the template of casting concrete, after another aspect moulding by casting again can confined concrete, guarantee the bearing capacity of pillar.The effect of contraction of outer steel pipe simultaneously, it is ensured that Large-size rebar or profile and the common stress of core concrete compatibility of deformation reduce connection workload.Outside steel pipe can guarantee the co-operation performance of connecting sleeve and concrete, if easily there is sag of protecting coating without outside steel pipe.In addition, steel pipe disconnects, i.e., it is vertical discontinuous, be conducive to assemble.Node security of the present invention is reliable, good integrity, is convenient for assembly, advantageous in stress and construction party mask.
Description
Technical field
The invention belongs to building structure technology field, in particular to a kind of prefabricated steel tube binding type steel concrete column splicing section
Point.
Background technique
Steel tube confined concrete structure is a kind of novel steel-concrete combined structure, has both concrete filled steel tube and fashioned iron
The advantages of two kinds of structure type of concrete, while solving the difficult point of concrete filled steel tube and steel reinforced concrete structure in construction.
Frame column is typically subject to the collective effect of axle power, moment of flexure and shearing in Practical Project, there is no at present reasonable pre-
Steel tube binding type steel concrete column processed splices joint form, limit the application of assembled steel tube binding type steel concrete structure with
It promotes.
Summary of the invention
The object of the present invention is to provide a kind of prefabricated steel tube binding type steel concrete columns to splice node, it is characterised in that:It is main
It to include prefabricated steel tube binding type steel concrete upper prop, prefabricated steel tube binding type steel concrete lower prop and splice region steel pipe.
The prefabricated steel tube binding type steel concrete upper prop includes upper steel pipe, upper fashioned iron and upper precast concrete.On described
After steel duct fills the upper precast concrete, there is distance in the lower end of upper precast concrete away from the lower nozzle of upper steel pipe.It is described
Pre-buried upper fashioned iron in upper precast concrete.Extend the lower nozzle of upper steel pipe in the lower end of the upper fashioned iron.
The prefabricated steel tube binding type steel concrete lower prop includes lower steel pipe, lower fashioned iron and lower precast concrete.Under described
After steel duct fills the lower precast concrete, there is distance in the upper end of lower precast concrete away from the upper orifice of lower steel pipe.It is described
Pre-buried lower fashioned iron in lower precast concrete.The upper orifice of lower steel pipe is stretched out in the upper end of the lower fashioned iron.
It is welded after the upper fashioned iron and the docking of lower fashioned iron, forms fashioned iron butt weld.
The splice region steel pipe includes two semi-steel pipes.The two packets form splice region steel around fashioned iron butt weld
Pipe.Splice region steel pipe lower end is welded after docking with the upper orifice of lower steel pipe, forms butt welding of steel tube seam.
There is gap between the upper end tube nozzle of the splice region steel pipe and the lower end of upper steel pipe.
Using gap of the set cuff between splice region steel pipe and upper steel pipe.
The splice region steel pipe is provided with filling concrete hole.By the fill orifice, between upper steel pipe and lower steel pipe
Node area concrete perfusion removes the cuff of constraint steel pipe edge joint position after concrete hardening.
Further, the prefabricated steel tube binding type steel concrete upper prop, prefabricated steel tube binding type steel concrete lower prop, spelling
Connect area's steel pipe, the axis of splice region cast-in-place concrete is located along the same line, the vertical basic plane of axis.
Further, it is L2 that the length of the lower nozzle of upper steel pipe is extended in the lower end of the upper fashioned iron.The length L2=of extension
150-180mm。
Further, the length of lower nozzle of the lower end of upper precast concrete away from upper steel pipe is L1.The length L1=10- of indent
20mm。
Further, the upper end of lower precast concrete is L3 away from the length of the upper orifice of lower steel pipe.The length L3=10- of indent
20mm。
Further, the length that the upper orifice of lower steel pipe is stretched out in the upper end of the lower fashioned iron is L4.Extension L4=150-
180mm。
Further, the splice region steel pipe and connect in area that there are the gaps 10-20mm between steel pipe.
Further, a kind of prefabricated steel tube binding type steel concrete column splices node, and construction technology is characterized in that：
1) it will be welded after upper prop and already installed lower prop steel sections abutting joint, form fashioned iron butt weld.
2) it is welded by butt weld, forms splice region steel pipe.
3) splice region steel pipe is aligned welding with fashioned iron under splice region, forms butt welding of steel tube seam.
4) the steel pipe constraint steel pipe edge joint position cuff splicing on splice region steel pipe and splice region, creates a seal to pour
Concrete.
5) to node area concrete perfusion, constraint steel pipe edge joint position cuff is removed after concrete hardening, makes splice region steel
Gap in the area Guan Yujie between steel pipe there are 10-20mm.
It is worth noting that on the one hand splice region steel pipe can be used as the template of casting concrete, on the other hand in the present invention
After moulding by casting again can confined concrete, guarantee the bearing capacity of pillar.The effect of contraction of outer steel pipe simultaneously, it is ensured that major diameter
Reinforcing bar or profile and the common stress of core concrete compatibility of deformation reduce connection workload.Outside steel pipe can guarantee connecting sleeve
With the co-operation performance of concrete, if easily there is sag of protecting coating without outside steel pipe.In addition, steel pipe disconnects, i.e., vertically
Discontinuously, be conducive to assemble.
The splicing node and construction technology of prefabricated components directly influence the stability and safety of assembled arthitecutral structure,
The operative constraint due to steel pipe of the invention acts on, and in steel tube binding type steel concrete column does not need that vertical muscle and stirrup is arranged, and
Steel pipe does not directly take on vertical load, is easily installed, and is suitable for prefabricated construction, has following advantages：
1, the splicing of welding fashioned iron is convenient, and securely and reliably, power transmission is clear, conveniently pours, can reach rigid joint requirement.
2, the effect of contraction of splice region steel pipe, it is ensured that Large-size rebar or profile and core concrete compatibility of deformation are common
Stress reduces connection workload.
3, center pillar splicing joint structure of the present invention is simple and can realize that batch production assembles, and fashioned iron, external application are welded in node area
Casing constraint, favorably guarantees construction quality.
Detailed description of the invention
The prefabricated steel tube binding type steel concrete column reinforcing joint of Fig. 1；
The prefabricated Column border node weld seam elevation of the top Fig. 2 prefabricated post and lower part；
The prefabricated steel tube binding type steel concrete column A-A sectional view of Fig. 3；
Fig. 4 constrains steel pipe edge joint position cuff；
In figure：Prefabricated steel tube binding type steel concrete upper prop (1), prefabricated steel tube binding type steel concrete lower prop (2), splicing
Area's steel pipe (3), splice region cast-in-place concrete (4), fashioned iron butt weld (5), butt welding of steel tube stitch (6), cuff (7), splice region
Fashioned iron (12) on upper steel pipe (11), splice region, on splice region under precast concrete (13), splice region under steel pipe (21), splice region
Precast concrete (23), filling concrete hole (31) under fashioned iron (22), splice region.
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all include within the scope of the present invention.
Embodiment 1：
A kind of prefabricated steel tube binding type steel concrete column splicing node, it is characterised in that:It mainly include prefabricated steel tube confinement
Steel reinforced concrete upper prop 1, prefabricated steel tube binding type steel concrete lower prop 2 and splice region steel pipe 3.
The prefabricated steel tube binding type steel concrete upper prop 1 includes upper steel pipe 11, upper fashioned iron 12 and upper precast concrete 13.
After filling the upper precast concrete 13 inside the upper steel pipe 11, the lower end of upper precast concrete 13 is away from the down tube of upper steel pipe 11
The length of mouth is L1.The length L1=10-20mm of indent.Pre-buried upper fashioned iron 12 in the upper precast concrete 13.The mo(u)ld top half
The length that the lower nozzle of upper steel pipe 11 is extended in the lower end of steel 12 is L2.The length L2=150-180mm of extension.
The prefabricated steel tube binding type steel concrete lower prop 2 includes lower steel pipe 21, lower fashioned iron 22 and lower precast concrete 23.
After filling the lower precast concrete 23 inside the lower steel pipe 21, the upper tube of lower steel pipe 21 is stretched out in the upper end of the lower fashioned iron 22
The length of mouth is L4.Extension L4=150-180mm.Pre-buried lower fashioned iron 22 in the lower precast concrete 23.Under it is prefabricated mixed
The length of upper orifice of the upper end away from lower steel pipe 21 of solidifying soil 23 is L3.The length L3=10-20mm of indent.
It is welded after the upper fashioned iron 12 and the docking of lower fashioned iron 22, forms fashioned iron butt weld 5.
The splice region steel pipe 3 includes two semi-steel pipes.The two packets form splice region around fashioned iron butt weld 5
Steel pipe 3.3 lower end of splice region steel pipe is welded after docking with the upper orifice of lower steel pipe 21, forms butt welding of steel tube seam 6.
The splice region steel pipe 3 and connect in area that there are the gaps 10-20mm between steel pipe 11.
Using 7 sets of the cuff gaps between splice region steel pipe 3 and upper steel pipe 11.
The splice region steel pipe 3 is provided with filling concrete hole 31.By the fill orifice 31, to upper steel pipe 11 and lower steel pipe
Node area concrete perfusion between 21 removes the cuff 7 of constraint steel pipe edge joint position after concrete hardening.
The prefabricated steel tube binding type steel concrete upper prop 1, prefabricated steel tube binding type steel concrete lower prop 2, splice region
Steel pipe 3, splice region cast-in-place concrete 4 axis be located along the same line, the vertical basic plane of axis.
Embodiment 2：
The present embodiment discloses the construction work for the splicing node of prefabricated steel tube binding type steel concrete column described in embodiment 1
Skill：
1) it will be welded after upper prop and already installed lower prop steel sections abutting joint, form fashioned iron butt weld 5.
2) it is welded by butt weld, forms splice region steel pipe 3.
3) splice region steel pipe 3 is aligned welding with fashioned iron 22 under splice region, forms butt welding of steel tube seam 6.
4) the constraint steel pipe edge joint position cuff 7 of steel pipe 11 splices on splice region steel pipe 3 and splice region, creates a seal to
Casting concrete.
5) to node area concrete perfusion, constraint steel pipe edge joint position cuff is removed after concrete hardening, makes splice region steel
Pipe 3 and connect the gap in area between steel pipe 11 there are 10-20mm.
Claims (8)
1. a kind of prefabricated steel tube binding type steel concrete column splices node, it is characterised in that:Mainly about including the prefabricated steel pipe
Beamforming steel concrete upper prop (1), prefabricated steel tube binding type steel concrete lower prop (2) and splice region steel pipe (3)；
The prefabricated steel tube binding type steel concrete upper prop (1) includes upper steel pipe (11), upper fashioned iron (12) and upper precast concrete
(13)；After filling the upper precast concrete (13) inside the upper steel pipe (11), the lower end of upper precast concrete (13) is away from upper
The lower nozzle of steel pipe (11) has distance；Pre-buried upper fashioned iron (12) in the upper precast concrete (13)；The upper fashioned iron (12)
Extend the lower nozzle of upper steel pipe (11) in lower end.
The prefabricated steel tube binding type steel concrete lower prop (2) includes lower steel pipe (21), lower fashioned iron (22) and lower precast concrete
(23)；After filling the lower precast concrete (23) inside the lower steel pipe (21), the upper end of lower precast concrete (23) is away under
The upper orifice of steel pipe (21) has distance；Pre-buried lower fashioned iron (22) in the lower precast concrete (23)；The lower fashioned iron (22)
The upper orifice of lower steel pipe (21) is stretched out in upper end；
It welds, is formed fashioned iron butt weld (5) after the upper fashioned iron (12) and lower fashioned iron (22) docking；
The splice region steel pipe (3) includes two semi-steel pipes；The two packets form splice region around fashioned iron butt weld (5)
Steel pipe (3)；Splice region steel pipe (3) lower end is welded after docking with the upper orifice of lower steel pipe (21), forms butt welding of steel tube seam
(6)；
There is gap between the upper end tube nozzle of the splice region steel pipe (3) and the lower end of upper steel pipe (11)；
The gap between splice region steel pipe (3) and upper steel pipe (11) is covered using cuff (7)；
The splice region steel pipe (3) is provided with filling concrete hole (31)；By the fill orifice (31), to upper steel pipe (11) and under
Node area concrete perfusion between steel pipe (21) removes the cuff (7) of constraint steel pipe edge joint position after concrete hardening.
2. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 splices node, it is characterised in that：It is described
Prefabricated steel tube binding type steel concrete upper prop (1), prefabricated steel tube binding type steel concrete lower prop (2), splice region steel pipe (3),
The axis of splice region cast-in-place concrete (4) is located along the same line, the vertical basic plane of axis.
3. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 or 2 splices node, it is characterised in that：
The length that the lower nozzle of upper steel pipe (11) is extended in the lower end of the upper fashioned iron (12) is L2；The length L2=150- of extension
180mm。
4. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 or 3 splices node, it is characterised in that：
The lower end of upper precast concrete (13) is L1 away from the length of the lower nozzle of upper steel pipe (11)；The length L1=10-20mm of indent.
5. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 or 3 splices node, it is characterised in that：
The upper end of lower precast concrete (23) is L3 away from the length of the upper orifice of lower steel pipe (21)；The length L3=10-20mm of indent.
6. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 or 3 splices node, it is characterised in that：
The length that the upper orifice of lower steel pipe (21) is stretched out in the upper end of the lower fashioned iron (22) is L4；Extension L4=150-180mm.
7. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 or 3 splices node, it is characterised in that：
The splice region steel pipe (3) and connect between steel pipe in area (11) that there are the gaps 10-20mm.
8. a kind of prefabricated steel tube binding type steel concrete column according to claim 1 splices node, construction technology feature
It is：
1) it will weld, formed fashioned iron butt weld (5) after the upper prop and already installed lower prop steel sections abutting joint；
2) it is welded, is formed splice region steel pipe (3) by butt weld；
3) splice region steel pipe (3) is aligned welding with fashioned iron under splice region (22), forms butt welding of steel tube seam (6).
4) steel pipe (11) constraint steel pipe edge joint position cuff (7) is spliced on splice region steel pipe (3) and splice region, formed sealing with
Just casting concrete；
5) to node area concrete perfusion, constraint steel pipe edge joint position cuff is removed after concrete hardening, makes splice region steel pipe (3)
With connect between steel pipe in area (11) that there are the gaps of 10-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723911.5A CN108868001A (en) | 2018-07-04 | 2018-07-04 | A kind of prefabricated steel tube binding type steel concrete column splicing node and its construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723911.5A CN108868001A (en) | 2018-07-04 | 2018-07-04 | A kind of prefabricated steel tube binding type steel concrete column splicing node and its construction technology |
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| CN108868001A true CN108868001A (en) | 2018-11-23 |
Family
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| CN201810723911.5A Pending CN108868001A (en) | 2018-07-04 | 2018-07-04 | A kind of prefabricated steel tube binding type steel concrete column splicing node and its construction technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130580A (en) * | 2019-05-20 | 2019-08-16 | 福建工程学院 | Steel tube confinement formula precast concrete column connection structure and construction method |
| CN112922234A (en) * | 2021-01-27 | 2021-06-08 | 海南大学 | Equivalent steel reinforced concrete prefabricated column and construction method thereof |
| CN113216397A (en) * | 2021-05-19 | 2021-08-06 | 西华大学 | Novel splicing mode of assembled GFRP (glass fiber reinforced plastic) pipe concrete column |
| CN113266106A (en) * | 2021-07-19 | 2021-08-17 | 中南大学 | Novel assembled concrete support column |
| CN114960988A (en) * | 2022-05-23 | 2022-08-30 | 中国一冶集团有限公司 | Steel pipe confined concrete column structural joint plugging device and method |
| CN110130580B (en) * | 2019-05-20 | 2024-04-26 | 福建工程学院 | Steel pipe constraint type precast concrete column connecting structure and construction method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130580A (en) * | 2019-05-20 | 2019-08-16 | 福建工程学院 | Steel tube confinement formula precast concrete column connection structure and construction method |
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| CN113266106A (en) * | 2021-07-19 | 2021-08-17 | 中南大学 | Novel assembled concrete support column |
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| CN114960988B (en) * | 2022-05-23 | 2023-05-16 | 中国一冶集团有限公司 | Steel pipe confined concrete column structural joint plugging device and method |
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