CN113982126A - Novel corrugated pipe connection square steel pipe concrete splicing column - Google Patents
Novel corrugated pipe connection square steel pipe concrete splicing column Download PDFInfo
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- CN113982126A CN113982126A CN202111116839.8A CN202111116839A CN113982126A CN 113982126 A CN113982126 A CN 113982126A CN 202111116839 A CN202111116839 A CN 202111116839A CN 113982126 A CN113982126 A CN 113982126A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 150
- 239000010959 steel Substances 0.000 title claims abstract description 150
- 239000004567 concrete Substances 0.000 title claims abstract description 83
- 230000002787 reinforcement Effects 0.000 claims abstract description 19
- 239000011440 grout Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 5
- 239000004574 high-performance concrete Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- 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
- 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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a novel corrugated pipe connection square steel pipe concrete splicing column which comprises a prefabricated upper column section and a prefabricated lower column section. Set up steel reinforcement cage and concrete in the first outer steel pipe of prefabricated upper prop section, steel reinforcement cage's the vertical muscle lower extreme stretches out first outer steel pipe, and there is the distance in the lower extreme of concrete and first outer steel pipe. The second outer steel pipe of prefabricated lower column section sets up concrete and bellows, and there is the distance with the outer steel pipe upper end of second in the concrete, and the bellows is in the pre-buried concrete and flushes with the outer steel pipe up end of second. And in the splicing state, the longitudinal ribs are respectively inserted into the corrugated pipes, the first outer steel pipe and the second outer steel pipe are welded, and the cavities at the joints are filled with cementing materials. The butt joint node of the concrete filled steel tubular column is connected by adopting the steel reinforcement cage and the corrugated pipe grout anchor, so that the process can be simplified, the cost can be reduced, the construction efficiency can be effectively improved, and the butt joint node can be widely applied to an assembly type structure system.
Description
Technical Field
The invention relates to the field of assembly type constructional engineering, in particular to a novel corrugated pipe connection square steel pipe concrete splicing column.
Background
Along with the development of our society and the increase of economy, the problems of energy conservation and environmental protection and the problem of resource waste are increasingly serious, and in order to solve the problems, our government has developed a series of policies and measures related to building industrialization in recent years, so as to promote the development of prefabricated structure buildings. Compared with the traditional fabricated concrete structure, the fabricated concrete-filled steel tube structure can greatly improve the effective use area of a building, is simple and convenient to construct, and has better economic benefit under the condition of the same bearing capacity. Meanwhile, although steel pipe concrete can fully exert the performances of steel and concrete, the research on the column node is relatively lagged, which limits the development of the steel pipe concrete structure to a certain extent. The steel pipe concrete column is usually constructed by installing steel pipes in place, welding the steel pipes, and then pouring internal concrete. Therefore, it is necessary to design an assembled concrete-filled steel tube column which is simple and convenient to install, can improve the production and construction efficiency, can omit the construction process of pouring concrete on site and effectively ensures the construction quality of the structure.
Disclosure of Invention
The invention aims to provide a novel corrugated pipe connection square steel pipe concrete splicing column to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the novel corrugated pipe connection square steel pipe concrete splicing column comprises a prefabricated upper column section and a prefabricated lower column section.
The prefabricated upper column section comprises a first outer steel pipe, a reinforcement cage is installed in the first outer steel pipe, the reinforcement cage comprises a plurality of longitudinal bars and a plurality of stirrups which are bound with each other, and the lower ends of the longitudinal bars extend out of the first outer steel pipe.
A core concrete I is poured in the first outer steel pipe, a distance exists between the lower surface of the core concrete I and the lower end face of the first outer steel pipe, and the hollow part of the lower end of the first outer steel pipe is marked as a cavity A.
And the side wall of the first outer steel pipe is provided with a slurry outlet which penetrates through the inner side and the outer side of the cavity A.
The prefabricated lower column section comprises a second outer steel pipe, core concrete II is poured in the second outer steel pipe, the upper surface of the core concrete II is far away from the upper end face of the second outer steel pipe, and the hollow part at the upper end of the second outer steel pipe is marked as a cavity B.
And a grouting hole is formed in the side wall of the second outer steel pipe and penetrates through the inner side and the outer side of the cavity B.
The lower ends of the corrugated pipes are embedded in the core concrete II, and the upper ends of the corrugated pipes extend out of the core concrete II and are flush with the upper end face of the second outer steel pipe.
When the corrugated pipe is in a splicing state, the corrugated pipe is filled with grouting material, a plurality of longitudinal ribs are respectively inserted into the corresponding corrugated pipes, the lower end of the first outer steel pipe is welded with the upper end of the second outer steel pipe, and the cavity A and the cavity B are filled with cementing materials.
Furthermore, each outer wall of the first outer steel pipe is welded with an ear plate, and the ear plates are close to the lower end of the first outer steel pipe.
And each outer wall of the second outer steel pipe is welded with an ear plate, and the ear plates are close to the upper end of the second outer steel pipe. And each lug plate is provided with a bolt hole.
When the splicing state is adopted, a connecting plate is arranged between each lug plate on the first outer steel pipe and the corresponding lug plate on the second outer steel pipe, and the connecting plates are connected by two lug plates corresponding to the bolts.
Further, the heights of the cavity A and the cavity B are both 50-60 mm.
Furthermore, the core concrete I and the core concrete II are both common concrete or high-performance concrete, and the compressive strength of the core concrete I and the compressive strength of the core concrete II are both greater than or equal to C30.
Further, the first outer steel pipe and the second outer steel pipe are made of Q235, Q345, Q390 or Q420 steel.
The invention has the beneficial effects that:
1. the invention adopts the connection of the reinforcement cage and the corrugated pipe grout anchor, thus simplifying the process, reducing the cost and effectively improving the construction efficiency;
2. the column-column joint has the advantages that the shear resistance of the joint part is improved by connecting the reinforcement cage with the corrugated pipe, the column-column joint is strong in integrity, the upper column and the lower column can reliably transfer load, and the mechanical property is good;
3. the invention connects the upper column section and the lower column section through the welding seam, and keeps the connection performance of the existing concrete-filled steel tubular column. The damage effect of the welding thermal effect on the concrete at the node is avoided by reserving gaps at the node and grouting later, and the quality of the core concrete can be controlled;
4. the assembled butt joint of the concrete-filled steel tube column simplifies the post-pouring process of concrete at the joints of the upper column section and the lower column section by reserving pouring holes.
Drawings
FIG. 1 is a schematic view of a prefabricated upper column section and a prefabricated lower column section during splicing;
FIG. 2 is a schematic view of the prefabricated upper column section and the prefabricated lower column section after splicing;
FIG. 3 is a schematic view of a prefabricated upper column section;
FIG. 4 is a schematic view of a lower end face of a prefabricated upper column section;
FIG. 5 is a diagram showing the positional relationship between core concrete I and a reinforcement cage;
FIG. 6 is a schematic view of a prefabricated lower column section;
FIG. 7 is a schematic view of the upper end face of a prefabricated lower column section;
FIG. 8 is a diagram showing the positional relationship between the core concrete II and the corrugated pipe.
In the figure: first outer steel pipe 1, steel reinforcement cage 2, grout outlet 3, core concrete I4, second outer steel pipe 5, otic placode 6, bellows 7, grout hole 8, prefabricated upper column section 9, prefabricated lower column section 10, connecting plate 11, stirrup 12, vertical muscle 13 and core concrete II 14.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a novel corrugated pipe connection square steel pipe concrete splicing column, which comprises a prefabricated upper column section 9 and a prefabricated lower column section 10.
Referring to fig. 3, prefabricated upper column section 9 includes first outer steel pipe 1, installs steel reinforcement cage 2 in the first outer steel pipe 1, and the central line of steel reinforcement cage 2 and the coincidence of the central line of first outer steel pipe 1 refer to fig. 4 or 5, and steel reinforcement cage 2 includes a plurality of longitudinal reinforcement 13 and a plurality of stirrup 12 of ligature each other, and the lower extreme of a plurality of longitudinal reinforcement 13 stretches out first outer steel pipe 1.
Core concrete I4 has been pour in first outer steel pipe 1, and there is the distance between the lower surface of core concrete I4 and the lower terminal surface of first outer steel pipe 1, and the hollow portion of first outer steel pipe 1 lower extreme marks as cavity A.
All seted up two grout outlet 3 on every lateral wall of first outer steel pipe 1, grout outlet 3 runs through the inside and outside of cavity A, and grout outlet 3 is close to the lower surface of core concrete I4. All weld otic placode 6 on every outer wall of first outer steel pipe 1, these otic placodes 6 are close to the lower extreme of first outer steel pipe 1, and every otic placode 6 is located between two grout outlet 3 with the lateral wall, all is provided with the bolt hole on every otic placode 6.
Referring to fig. 6, the prefabricated lower column section 10 includes a second outer steel pipe 5, a core concrete ii 14 is poured in the second outer steel pipe 5, referring to fig. 7, a distance exists between the upper surface of the core concrete ii 14 and the upper end surface of the second outer steel pipe 5, and a hollow portion at the upper end of the second outer steel pipe 5 is denoted as a cavity B. The height of the cavity A and the height of the cavity B are both 50-60 mm, so that the concrete at the joint is ensured to be hollow, and the influence of welding heat effect is avoided. The core concrete I4 and the core concrete II 14 are both ordinary concrete or high-performance concrete, and the compressive strength of the core concrete I4 and the compressive strength of the core concrete II are both greater than or equal to C30.
In this embodiment, the first outer steel pipe 1 and the second outer steel pipe 5 are both square pipes, and the first outer steel pipe 1 and the second outer steel pipe 5 are made of Q235, Q345, Q390 or Q420 steel. Two grouting holes 8 are formed in each side wall of the second outer steel pipe 5, the grouting holes 8 penetrate through the inner side and the outer side of the cavity B, and the diameters of the grouting holes 8 and the grout outlet holes 3 are 20-25 mm. All the welding has otic placode 6 on every outer wall of the outer steel pipe of second 5, and these otic placodes 6 are close to the outer steel pipe of second 5's upper end, and every otic placode 6 is located between two grout holes 8 with the lateral wall, all is provided with the bolt hole on every otic placode 6.
Referring to fig. 8, the lower ends of the plurality of corrugated pipes 7 are embedded in the core concrete ii 14, the upper ends of the corrugated pipes 7 extend out of the core concrete ii 14 and are flush with the upper end surface of the second outer steel pipe 5, and the distance between the outer surface of the corrugated pipe 7 and the inner wall of the second outer steel pipe 5 is 30-50 mm.
Referring to fig. 2, in the splicing state, the corrugated pipe 7 is filled with grouting material, the longitudinal ribs 13 are respectively inserted into the corresponding corrugated pipes 7, the lower end of the first outer steel pipe 1 is welded with the upper end of the second outer steel pipe 5, a connecting plate 11 is arranged between each lug plate 6 on the first outer steel pipe 1 and the corresponding lug plate 6 on the second outer steel pipe 5, the connecting plate 11 is connected by two lug plates 6 corresponding to bolts, and the cavity a and the cavity B are filled with cementing material. Fig. 1 is a schematic view of the splicing process of the prefabricated upper column section 9 and the prefabricated lower column section 10.
During construction, the first outer steel pipe 1 is put in place, the manufactured reinforcement cage 2 is fixed at the position of the end of the first outer steel pipe 1, and then the core concrete I4 is poured at the position 50-60 mm away from the lower end of the first outer steel pipe 1, so that the prefabricated upper column section 9 is manufactured. And then, the second outer steel pipe 5 is put in place, the manufactured corrugated pipes 7 are fixed at the upper end position of the second outer steel pipe 1, and the core concrete II 14 is poured at the position 50-60 mm away from the lower end of the second outer steel pipe 5, so that the prefabricated lower column section 10 is manufactured. And then grouting materials are poured into each corrugated pipe 7, the prefabricated upper column section 9 is hoisted and spliced with the prefabricated lower column section 10, the longitudinal ribs 13 are inserted into the corresponding corrugated pipes 7, the connecting plates 11 are fixed on the two corresponding ear plates 6, the first outer steel pipe 1 and the second outer steel pipe 5 are welded into a whole by V-shaped groove welding, and finally, cementing materials are injected into the cavity A and the cavity B through the grouting holes 8 and filled until the grout outlet holes 3 start to overflow, the injection is stopped, and the assembly is completed.
Example 2:
the embodiment discloses a novel corrugated pipe connection square steel pipe concrete splicing column, which comprises a prefabricated upper column section 9 and a prefabricated lower column section 10.
Referring to fig. 3, the prefabricated upper column section 9 includes a first outer steel pipe 1, and a reinforcement cage 2 is installed in the first outer steel pipe 1, referring to fig. 4 or 5, the reinforcement cage 2 includes a plurality of longitudinal bars 13 and a plurality of stirrups 12 of ligature each other, and the lower extreme of a plurality of longitudinal bars 13 stretches out first outer steel pipe 1.
Core concrete I4 has been pour in first outer steel pipe 1, and there is the distance between the lower surface of core concrete I4 and the lower terminal surface of first outer steel pipe 1, and the hollow portion of first outer steel pipe 1 lower extreme marks as cavity A.
And a slurry outlet hole 3 is formed in the side wall of the first outer steel pipe 1, and the slurry outlet hole 3 penetrates through the inner side and the outer side of the cavity A.
Referring to fig. 6, the prefabricated lower column section 10 includes a second outer steel pipe 5, a core concrete ii 14 is poured in the second outer steel pipe 5, referring to fig. 7, a distance exists between the upper surface of the core concrete ii 14 and the upper end surface of the second outer steel pipe 5, and a hollow portion at the upper end of the second outer steel pipe 5 is denoted as a cavity B.
And a grouting hole 8 is formed in the side wall of the second outer steel pipe 5, and the grouting hole 8 penetrates through the inner side and the outer side of the cavity B.
Referring to fig. 8, the lower ends of a plurality of corrugated pipes 7 are embedded in the core concrete ii 14, and the upper ends of the corrugated pipes 7 extend out of the core concrete ii 14 and are flush with the upper end surface of the second outer steel pipe 5.
Referring to fig. 2, in the splicing state, the corrugated pipes 7 are filled with grouting material, the longitudinal ribs 13 are respectively inserted into the corresponding corrugated pipes 7, the lower ends of the first outer steel pipes 1 are welded with the upper ends of the second outer steel pipes 5, and the cavities a and B are filled with cementing material. Fig. 1 is a schematic view of the splicing process of the prefabricated upper column section 9 and the prefabricated lower column section 10.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, and further, referring to fig. 3 or 4, each outer wall of the first outer steel pipe 1 is welded with an ear plate 6, and these ear plates 6 are close to the lower end of the first outer steel pipe 1.
Referring to fig. 6 or 7, each outer wall of the second outer steel pipe 5 is welded with lug plates 6, and the lug plates 6 are close to the upper end of the second outer steel pipe 5. Each lug plate 6 is provided with a bolt hole.
Referring to fig. 2, in the splicing state, a connecting plate 11 is arranged between each ear plate 6 on the first outer steel pipe 1 and the corresponding ear plate 6 on the second outer steel pipe 5, and the connecting plates 11 are connected by two corresponding ear plates 6 of bolts.
Example 4:
the main structure of this embodiment is the same as embodiment 2, and further, the heights of the cavity a and the cavity B are both 50mm to 60 mm.
Example 5:
the main structure of this embodiment is the same as that of embodiment 2, and further, the core concrete i 4 and the core concrete ii 14 are both ordinary concrete or high-performance concrete, and the compressive strength of both is greater than or equal to C30.
Example 6:
the main structure of this embodiment is the same as that of embodiment 2, and further, the first outer steel pipe 1 and the second outer steel pipe 5 are made of Q235, Q345, Q390 or Q420 steel.
Claims (5)
1. The utility model provides a novel bellows joint square steel pipe concrete concatenation post which characterized in that: comprises the prefabricated upper column section (9) and the prefabricated lower column section (10);
the prefabricated upper column section (9) comprises a first outer steel pipe (1), a reinforcement cage (2) is installed in the first outer steel pipe (1), the reinforcement cage (2) comprises a plurality of longitudinal ribs (13) and a plurality of stirrups (12) which are bound with each other, and the lower ends of the longitudinal ribs (13) extend out of the first outer steel pipe (1);
a core concrete I (4) is poured in the first outer steel pipe (1), the lower surface of the core concrete I (4) is away from the lower end surface of the first outer steel pipe (1), and the hollow part of the lower end of the first outer steel pipe (1) is marked as a cavity A;
a slurry outlet (3) is formed in the side wall of the first outer steel pipe (1), and the slurry outlet (3) penetrates through the inner side and the outer side of the cavity A;
the prefabricated lower column section (10) comprises a second outer steel pipe (5), core concrete II (14) is poured in the second outer steel pipe (5), the upper surface of the core concrete II (14) is distant from the upper end surface of the second outer steel pipe (5), and the hollow part at the upper end of the second outer steel pipe (5) is marked as a cavity B;
a grouting hole (8) is formed in the side wall of the second outer steel pipe (5), and the grouting hole (8) penetrates through the inner side and the outer side of the cavity B;
the lower ends of the corrugated pipes (7) are embedded in the core concrete II (14), and the upper ends of the corrugated pipes (7) extend out of the core concrete II (14) and are flush with the upper end face of the second outer steel pipe (5);
during the concatenation state, bellows (7) are filled there is the grout material, and in a plurality of longitudinal bars (13) inserted corresponding bellows (7) respectively, the lower extreme of first outer steel pipe (1) and the welding of second outer steel pipe (5) upper end, cavity A and cavity B intussuseption are filled with cementitious material.
2. The novel corrugated pipe connection square concrete-filled steel tube splicing column according to claim 1, is characterized in that: ear plates (6) are welded on each outer wall of the first outer steel pipe (1), and the ear plates (6) are close to the lower end of the first outer steel pipe (1);
ear plates (6) are welded on each outer wall of the second outer steel pipe (5), and the ear plates (6) are close to the upper end of the second outer steel pipe (5); each lug plate (6) is provided with a bolt hole;
when the steel pipe is spliced, a connecting plate (11) is arranged between each lug plate (6) on the first outer steel pipe (1) and the corresponding lug plate (6) on the second outer steel pipe (5), and the connecting plate (11) is connected by two lug plates (6) corresponding to bolts.
3. The novel corrugated pipe connection square concrete-filled steel tube splicing column according to claim 1 or 2, is characterized in that: the heights of the cavity A and the cavity B are both 50-60 mm.
4. The novel corrugated pipe connection square concrete filled steel tube splicing column according to claim 1 or 3, is characterized in that: the core concrete I (4) and the core concrete II (14) are both ordinary concrete or high-performance concrete, and the compressive strength of the core concrete I (4) and the compressive strength of the core concrete II (14) are both greater than or equal to C30.
5. The novel corrugated pipe connection square concrete-filled steel tube splicing column according to claim 1, is characterized in that: the first outer steel pipe (1) and the second outer steel pipe (5) are made of Q235, Q345, Q390 or Q420 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116839.8A CN113982126A (en) | 2021-09-23 | 2021-09-23 | Novel corrugated pipe connection square steel pipe concrete splicing column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116839.8A CN113982126A (en) | 2021-09-23 | 2021-09-23 | Novel corrugated pipe connection square steel pipe concrete splicing column |
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| CN113982126A true CN113982126A (en) | 2022-01-28 |
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| CN202111116839.8A Pending CN113982126A (en) | 2021-09-23 | 2021-09-23 | Novel corrugated pipe connection square steel pipe concrete splicing column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114704095A (en) * | 2022-04-15 | 2022-07-05 | 濮阳市宏超建筑安装有限公司 | Continuous casting equipment and method for reinforcement cage concrete pipe in building |
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