CN113529934A - Beam column node of combination of steel bar area anchor plate and steel-pipe column shaped steel bracket - Google Patents
Beam column node of combination of steel bar area anchor plate and steel-pipe column shaped steel bracket Download PDFInfo
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- CN113529934A CN113529934A CN202110700363.6A CN202110700363A CN113529934A CN 113529934 A CN113529934 A CN 113529934A CN 202110700363 A CN202110700363 A CN 202110700363A CN 113529934 A CN113529934 A CN 113529934A
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- ring plate
- pipe column
- steel bar
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 240
- 239000010959 steel Substances 0.000 title claims abstract description 240
- 238000004873 anchoring Methods 0.000 claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 239000003351 stiffener Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 239000011150 reinforced concrete Substances 0.000 description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Classifications
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a beam column node combining a steel bar belt anchoring plate and a steel pipe concrete column (hereinafter referred to as a steel pipe column) section steel corbel, which comprises a steel pipe column, a ring plate, a section steel corbel, an anchoring part and a steel bar group, wherein the ring plate is sleeved on the steel pipe column, a plurality of connecting ports for fixing the section steel corbel are arranged on the steel pipe column, one end of the section steel corbel is inserted on the ring plate, the anchoring part is fixed at a position, close to the connecting port, of the ring plate, the steel bar group comprises a plurality of steel bars, one end of each steel bar is fixed at the anchoring part, and the extending direction of each steel bar faces to the other end of the section steel corbel. Compared with the prior art, the steel pipe column joint has the advantages of simple structure stress, reasonable structure, convenience in construction and the like, and is matched with a steel pipe column and a ring plate structure, and a steel section bracket, an anchoring piece and a steel bar group on the basis of not damaging the steel pipe column structure, so that the stable installation of the steel pipe column joint is realized.
Description
Technical Field
The invention belongs to the technical field of building structure engineering, relates to a beam-column node, and particularly relates to a beam-column node formed by combining a steel bar strip anchoring plate and a steel pipe column section steel bracket.
Background
The steel pipe concrete structure has high bearing capacity, good ductility and excellent anti-seismic performance; by adopting the steel pipe concrete, the section size of the column can be greatly reduced, and the using space of the building is increased. However, in the beam column joint area, the steel pipes prevent the longitudinal stressed steel bars of the reinforced concrete beam from passing through, and the problem of anchoring the longitudinal steel bars of the beam in the joint area becomes a difficult problem in the engineering field.
There are two broad categories of practice proposed by the specifications, scheme one: opening a hole on the steel pipe to allow the beam steel bar to pass through; scheme II: a reinforced concrete ring beam is adopted, beam steel bars are anchored in the ring beam, and beam load is transmitted to the steel pipe column through the ring beam.
The two schemes have the defects that the first scheme can ensure the stress of the beam to be safe and reliable, the cost is that the integrity of the steel pipe column in the node area is sacrificed, the strength of the steel pipe at the node position is weakened, the anti-seismic design concept of 'strong nodes and weak rods' is violated, when the beam has more steel bars, larger holes need to be formed, the weakening of the steel pipe is more serious, and the steel pipe with the holes needs to be reinforced; and when the roof beam of a plurality of directions intersects, numerous reinforcing bar can influence pouring of concrete in the steel pipe, influences the closely knit of concrete in the steel pipe. A reinforced concrete ring beam is adopted in the second scheme, the section of the ring beam is large, the steel bars are dense, and equipment pipelines arranged along the periphery of the steel pipe column cannot penetrate through the ring beam; the annular steel bars are dense and need to be welded and connected on site; when the elevation difference of the top of the crossed beams is large, the height of the ring beam needs to be added with the elevation difference, so that the height of the ring beam is large; because the ring beam is large in size and is stacked layer by layer, the influence of vertical load generated by self weight on the foundation cannot be ignored.
Disclosure of Invention
The invention provides a beam column node combining a reinforcing steel strip anchoring plate and a steel pipe column section steel bracket, wherein a steel pipe in the beam column node is kept complete, the strength of a steel pipe column is kept unchanged, a beam longitudinal stress reinforcing steel bar is anchored on the section steel bracket, and a beam internal force is transmitted to the steel pipe column through the section steel bracket.
The invention provides a beam column node combining a steel bar strip anchoring plate and a steel pipe column profile steel bracket, which comprises a steel pipe column, a ring plate, a profile steel bracket, an anchoring part and a steel bar group, wherein the ring plate is sleeved on the steel pipe column, the steel pipe column is provided with a plurality of connecting ports for fixing the profile steel bracket, one end of the profile steel bracket is inserted on the ring plate, the anchoring part is fixed at the position, close to the connecting port, of the ring plate, the steel bar group comprises a plurality of steel bars, one end of each steel bar is fixed at the anchoring part, and the extending direction of each steel bar faces to the other end of the profile steel bracket.
Further, the steel pipe column comprises a steel pipe and concrete in the steel pipe.
Furthermore, the anchoring part comprises a first steel bar positioning plate and a second steel bar positioning plate, wherein anchor grooves are formed in the first steel bar positioning plate and the second steel bar positioning plate, the steel bars are inserted into the anchor grooves, the first steel bar positioning plate is fixedly connected with the ring plate, and the second steel bar positioning plate is fixedly connected with the first steel bar positioning plate.
Furthermore, the first steel bar positioning plate and the second steel bar positioning plate are both of comb-shaped structures with a plurality of anchoring grooves, the anchoring grooves of the first steel bar positioning plate and the second steel bar positioning plate form anchoring holes, and one ends of the steel bars are fixed at the anchoring holes.
Furthermore, a plurality of positioning plate reinforcing ribs are arranged on the first steel bar positioning plate and are perpendicular to the first steel bar positioning plate, and the positioning plate reinforcing ribs are fixedly connected with the ring plate and the upper flange of the section steel bracket.
Furthermore, the upper surface of the annular plate with the connecting port is provided with an anchoring piece.
Further, the beam column node still includes the hoop reinforcement group of encrypting, it is formed by a plurality of hoop reinforcement range to encrypt the hoop reinforcement group, shaped steel bracket, reinforcing bar group are located the hoop reinforcement of encrypting.
Further, the ring plate comprises an upper horizontal ring plate, a lower horizontal ring plate, an upper vertical ring plate and a lower vertical ring plate, the upper horizontal ring plate is fixedly connected with the upper vertical ring plate, the lower horizontal ring plate is fixedly connected with the lower vertical ring plate, all types of ring plates are fixedly connected with the steel pipe column, the section steel bracket is installed between the upper horizontal ring plate and the lower horizontal ring plate, and the section steel bracket is fixedly connected with the steel pipe column.
Further, the shaped steel bracket is I-shaped steel.
Furthermore, the shaped steel bracket is being inserted and is being equipped with vertical stiffening rib in the ring board department, be equipped with the horizontal stiffening rib of a plurality of on the shaped steel bracket, horizontal stiffening rib place plane is perpendicular with the shaped steel bracket.
Compared with the prior art, the beam column joint has the advantages of simple structure stress, reasonable structure, convenience in construction and the like, and is matched with a steel pipe column and a ring plate structure, and a section steel corbel, an anchoring piece and a steel bar group on the basis of not damaging the steel pipe column structure, so that stable installation of the beam column joint is realized.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a horizontal cross-sectional view of an embodiment of the present invention;
FIG. 4 is a structural diagram of a first steel bar positioning plate and a second steel bar positioning plate according to the embodiment of the present invention;
FIG. 5 is a schematic view of a reinforcement bar set installation structure according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a rebar set according to an embodiment of the invention;
fig. 7 is an enlarged structural schematic view of a rebar set according to an embodiment of the invention.
1. Steel pipe columns; 11. a steel pipe; 12. concrete in the steel tube; 2. a ring plate; 21. an upper horizontal ring plate; 22. a lower horizontal ring plate; 23. an upper vertical ring plate; 24. a lower vertical ring plate; 3. a section steel corbel; 31. a longitudinal stiffener; 32. a transverse stiffener; 4. an anchoring member; 41. a first steel bar positioning plate; 42. a second steel bar positioning plate; 43. an anchoring groove; 44. reinforcing ribs of the positioning plate; 5. a set of rebars; 6. and (5) encrypting the stirrups.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The embodiment of the invention discloses a steel pipe column 1 node formed by combining a steel bar strip anchoring plate and a steel pipe column steel bracket 3, which comprises a steel pipe column 1, a ring plate 2, a steel pipe column bracket 3, an anchoring part 4 and a steel bar group 5, wherein the ring plate 2 is sleeved on the steel pipe column 1, a plurality of connecting ports for fixing the steel pipe column bracket 3 are arranged on the steel pipe column 1, one end of the steel pipe column bracket 3 is inserted into the ring plate 2, the anchoring part 4 is fixed at the position, close to the connecting ports, of the ring plate 2, the steel bar group 5 comprises a plurality of steel bars, one ends of the steel bars are fixed at the anchoring part 4, and the extending direction of the steel bars faces to the other end of the steel pipe column bracket 3.
As shown in figures 1-3, four connectors are arranged on the ring plate 2 and are welded and fixed with the section steel corbel 3. The annular plate 2 is fixedly connected with the steel pipe column 1, the annular plate 2 is provided with an anchoring piece 4 at the joint with the section steel bracket 3, and one end of the steel bar group 5 is fixed at the anchoring piece 4.
The embodiment of the invention has the advantages of simple structure stress, reasonable structure, convenient construction and the like, provides an effective solution for the problems of length and anchoring of the longitudinal stress steel bars of the beam in the node area on the premise of keeping the integrity of the steel pipes 11 in the node area, keeping the strength of the steel pipe column unchanged and enhancing the stress performance of the beam-column node, saves the construction time and lightens the construction difficulty. Meanwhile, the external section steel corbel 3 is adopted in the node area, all internal force transmitted from the beam end is born, the interior of the steel pipe is kept smooth, concrete pouring in the steel pipe is not obstructed, construction difficulty is reduced, and favorable conditions are provided for ensuring construction quality. In addition, the embodiment of the invention utilizes the steel bar anchoring plate to reduce the steel bar anchoring length, thereby reducing the length of the section steel bracket 3, facilitating the transportation of the node and the hoisting of a construction site and saving the construction cost.
Optionally, as shown in fig. 1 to 3, the steel pipe column 1 includes a steel pipe 11 and concrete inside steel pipe 12, and the concrete inside steel pipe 12 is poured into the steel pipe 11.
The ring plate 2 is installed outside the steel pipe 11 by adopting a welding mode.
According to the embodiment of the invention, the section steel corbel 3 is used as an extension of the steel pipe column 1 and is combined with the reinforced concrete beam, a special steel reinforced concrete structure is formed in a beam column node area, and the section steel corbel 3 plays a role of a bridge and transmits the internal force at the end part of the reinforced concrete beam to the steel pipe column 1. Longitudinal stressed steel bars of the reinforced concrete beam extend into the section steel corbels 3; the longitudinal stressed steel bar of the beam surface bearing the tensile force is fixed on the section steel bracket 3 through a steel bar positioning plate and is stressed together with the section steel bracket 3.
Optionally, as shown in fig. 4-5, the anchoring member 4 includes a first steel bar positioning plate 41 and a second steel bar positioning plate 42, the first steel bar positioning plate 41 and the second steel bar positioning plate 42 are provided with anchoring grooves 43, the steel bars are inserted into the anchoring grooves 43, the first steel bar positioning plate 41 is fixedly connected to the ring plate 2, and the second steel bar positioning plate 42 is fixedly connected to the first steel bar positioning plate 41.
Particularly, the first steel bar positioning plate 41 and the second steel bar positioning plate 42 are both of a comb-shaped structure having a plurality of anchoring grooves 43, the anchoring grooves 43 of the first steel bar positioning plate 41 and the second steel bar positioning plate 42 form anchoring holes, and one ends of the steel bars are fixed at the anchoring holes.
Wherein, the second steel bar positioning plate 42 is fixedly connected with the first steel bar positioning plate 41. When the steel bar positioning plate is installed, the steel bar is fixed at the anchoring groove 43, and the second steel bar positioning plate 42 and the first steel bar positioning plate 41 are pressed tightly and fixed by spot welding.
Specifically, as shown in fig. 7, the first steel bar positioning plate 41 is provided with a plurality of positioning plate reinforcing ribs 44, the positioning plate reinforcing ribs 44 are perpendicular to the first steel bar positioning plate 41, and the positioning plate reinforcing ribs 44 are fixedly connected with the first steel bar positioning plate 41 and the ring plate 2.
The positioning plate reinforcing ribs 44 are provided with a plurality of positioning plate reinforcing ribs 44, the positioning plate reinforcing ribs 44 are arranged between adjacent steel bars, the positioning plate reinforcing ribs 44 are arranged on one side, away from the steel pipe column 1, of the first steel bar positioning plate 41, and the positioning plate reinforcing ribs 44 are fixedly welded with the ring plate 2.
The embodiment of the invention can effectively fix and strengthen the first steel bar positioning plate 41 by adopting the positioning plate reinforcing rib 44.
In particular, as shown in fig. 6, the ring plate 2 is provided with anchors 4 on the upper surface having the connection ports.
According to the embodiment of the invention, the anchoring piece 4 is arranged on the upper surface of the annular plate 2 at the connecting port, and the upper surface and the lower surface of the section steel corbel 3 can be effectively fixed by matching with the reinforcing steel bar group 5, so that the stress strength and the stability are improved.
Optionally, the steel pipe column 1 node further comprises a plurality of encrypted stirrups 6, the encrypted stirrups 6 are formed by arranging a plurality of encrypted stirrups 6, and the section steel bracket 3 and the steel bar group 5 are installed in the encrypted stirrups 6.
Wherein, the encrypted stirrup 6 is an annular steel bar.
According to the embodiment of the invention, the 6 groups of the encrypted stirrups and the interval of the encrypted stirrups is 100, so that the section steel corbel 3 and the steel bar group 5 can be effectively fixed, the shearing resistance calculation and construction requirements of beam-column joints are met, and the encryption range is measured from the outer end of the section steel corbel and extends outwards for 1.5 times of the beam height.
Optionally, the ring plate 2 includes an upper horizontal ring plate 21, a lower horizontal ring plate 22, an upper vertical ring plate 23, and a lower vertical ring plate 24, the upper horizontal ring plate 21 is fixedly connected with the upper vertical ring plate 23, the lower horizontal ring plate 22 is fixedly connected with the lower vertical ring plate 24, the section steel bracket 3 is installed between the upper horizontal ring plate 21 and the lower horizontal ring plate 22, and the section steel bracket 3 is fixedly connected with the steel pipe column 1.
Wherein, the upper flange of the section steel bracket 3 is welded with the upper horizontal ring plate 21 with equal strength, the lower flange is welded with the lower horizontal ring plate 22 with equal strength, and the web plate of the section steel bracket 3 is fixedly connected with the steel pipe 11.
Optionally, the section steel bracket 3 is an I-shaped steel.
The steel bracket 3 in the embodiment of the invention is I-shaped welded steel with the length of 600.
Specially, shaped steel bracket 3 is being inserted and is being equipped with vertical stiffening rib 31 in the department of ring board 2, be equipped with the horizontal stiffening rib 32 of a plurality of on the shaped steel bracket 3, horizontal stiffening rib 32 place plane is perpendicular with shaped steel bracket 3.
The longitudinal stiffening ribs 31 improve the shearing resistance of the section steel corbels in the node area and strengthen the connection between the section steel corbels and the steel pipe columns; the transverse stiffening ribs 32 strengthen the bonding between the section steel corbel and the concrete, ensure the common stress and deformation of the section steel corbel and the concrete, and the stiffening ribs 31 and 32 are both steel plate structures.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (10)
1. The utility model provides a beam column node of reinforcing bar area anchor plate and combination of steel-pipe column shaped steel bracket, a serial communication port, the beam column node includes steel-pipe column, crown plate, shaped steel bracket, anchor assembly, reinforcing bar group, the crown plate cover is located on the steel-pipe column, it is used for fixing to be equipped with a plurality of on the steel-pipe column the connector of shaped steel bracket, the one end of shaped steel bracket is inserted on the crown plate, anchor assembly is fixed and is close to connector department at the crown plate, reinforcing bar group is including a plurality of reinforcing bars, reinforcing bar one end is fixed in anchor assembly department, just the extending direction orientation of reinforcing bar the other end of shaped steel bracket.
2. The beam column node of claim 1, wherein the steel pipe column comprises steel pipe, concrete-in-steel pipe.
3. The beam-column node according to claim 1, wherein the anchoring member comprises a first steel bar positioning plate and a second steel bar positioning plate, wherein the first steel bar positioning plate and the second steel bar positioning plate are provided with anchoring grooves, the steel bars are installed in the anchoring grooves, the first steel bar positioning plate is fixedly connected with the ring plate, and the second steel bar positioning plate is fixedly connected with the first steel bar positioning plate or the ring plate.
4. The beam-column node according to claim 3, wherein the first and second steel bar positioning plates are comb-shaped structures having a plurality of anchoring grooves, the anchoring grooves of the first and second steel bar positioning plates form anchoring holes, and one ends of the steel bars are fixed at the anchoring holes.
5. The beam-column node according to claim 3, wherein the first reinforcement positioning plate is provided with a plurality of positioning plate reinforcing ribs, the positioning plate reinforcing ribs are perpendicular to the first reinforcement positioning plate, and the positioning plate reinforcing ribs are fixedly connected with the ring plate.
6. The beam column node as defined in claim 3, wherein the ring plate is provided with an anchor on an upper surface having the connection port.
7. The beam-column joint according to claim 1, further comprising a stiffener group, wherein the stiffener group is formed by arranging a plurality of stiffeners, and the steel section bracket and the steel bar group are located in the stiffener.
8. The beam column node according to claim 1, wherein the ring plates comprise an upper horizontal ring plate, a lower horizontal ring plate, an upper vertical ring plate and a lower vertical ring plate, the upper horizontal ring plate is fixedly connected with the upper vertical ring plate, the lower horizontal ring plate is fixedly connected with the lower vertical ring plate, the upper horizontal ring plate, the lower horizontal ring plate, the upper vertical ring plate and the lower vertical ring plate are fixedly connected with the steel pipe column, the section steel bracket is installed between the upper horizontal ring plate and the lower horizontal ring plate, and the section steel bracket is fixedly connected with the steel pipe column.
9. The beam column node of claim 1, wherein the section steel corbel is an i-section steel.
10. The beam-column joint according to claim 9, wherein the steel corbel is provided with longitudinal stiffeners at the insertion of the ring plates, and the steel corbel is provided with a plurality of transverse stiffeners, and the transverse stiffeners are arranged on a plane perpendicular to the steel corbel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110700363.6A CN113529934A (en) | 2021-06-23 | 2021-06-23 | Beam column node of combination of steel bar area anchor plate and steel-pipe column shaped steel bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110700363.6A CN113529934A (en) | 2021-06-23 | 2021-06-23 | Beam column node of combination of steel bar area anchor plate and steel-pipe column shaped steel bracket |
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| Publication Number | Publication Date |
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| CN113529934A true CN113529934A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110700363.6A Pending CN113529934A (en) | 2021-06-23 | 2021-06-23 | Beam column node of combination of steel bar area anchor plate and steel-pipe column shaped steel bracket |
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| 张小良: "新型钢管混凝土柱钢牛腿与RC梁纵筋机械锚固式连接节点设计与试验研究", 《广东土木与建筑》, no. 01, 15 January 2016 (2016-01-15), pages 1 - 2 * |
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