CN215563327U - Rectangular steel pipe confined reinforced concrete column and steel beam joint - Google Patents
Rectangular steel pipe confined reinforced concrete column and steel beam joint Download PDFInfo
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- CN215563327U CN215563327U CN202121920056.0U CN202121920056U CN215563327U CN 215563327 U CN215563327 U CN 215563327U CN 202121920056 U CN202121920056 U CN 202121920056U CN 215563327 U CN215563327 U CN 215563327U
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Abstract
The utility model discloses a rectangular steel pipe confined reinforced concrete column and steel beam node. First inner baffle and second inner baffle are arranged at the upper end and the lower end of the node steel pipe, and the steel beam is conveniently and reliably connected with the node. According to the utility model, the inner ring plate is arranged in the middle of the inner cavity of the node steel pipe, so that the problem that the core part in the middle of the node is easy to damage is solved. Two inner partition plates are arranged at the upper end and the lower end of the steel pipe, so that strong restraint is generated on the concrete in the node area to improve the performance of the concrete, the requirement of strong nodes is met, and meanwhile, the concrete in the steel pipe cavity can be integrally formed and pouring is facilitated. The utility model adopts the combination of the steel pipe and the inner partition plate in the node reinforcing measure, and simultaneously realizes the aim of firmly connecting the strong node and the column with the steel beam.
Description
Technical Field
The utility model belongs to the field of building structure design, and particularly relates to a rectangular steel pipe confined reinforced concrete column and steel beam node.
Background
The steel tube confined concrete column is a vertical bearing member of a combined structure formed by pouring concrete in a steel tube, and is a novel combined structure member provided for the problem of complex structure of a frame node of the steel tube confined concrete column on the basis of the steel tube confined concrete column. The steel pipes of the steel pipe confined concrete column are only arranged on the column body, are disconnected at the beam column joint, and are combined with the reinforced concrete beam to form the reinforced concrete frame joint. At present, the steel tube confined concrete column is applied to the bearing column which is stressed greatly in high-rise buildings, industrial plants and large-span space structures.
However, in the currently applied steel tube confined concrete column frame joint form, because the steel tubes are disconnected in the joint area, the joint is weakened, and the seismic design requirement of 'strong joint and weak member' cannot be met.
Disclosure of Invention
The utility model aims to overcome the defects and provides a rectangular steel tube confined reinforced concrete column and steel beam joint which is high in strength, excellent in anti-seismic performance, high in bearing capacity, good in integrity, clear in force transfer, safe and reliable.
In order to achieve the purpose, the steel tube comprises a node steel tube, wherein a first column steel tube and a second column steel tube are respectively arranged at the upper end and the lower end of the node steel tube, a first inner partition plate and a second inner partition plate are arranged inside the node steel tube, an inner ring plate is arranged between the first inner partition plate and the second inner partition plate, a node connecting web plate is longitudinally arranged between the first inner partition plate and the second inner partition plate, a first steel beam, a second steel beam, a third steel beam and a fourth steel beam are respectively arranged on four surfaces of the node steel tube, and the first steel beam, the second steel beam, the third steel beam and the fourth steel beam are all connected with the first inner partition plate, the second inner partition plate and the node connecting web plate;
a plurality of longitudinal bars penetrate through the first column steel pipe, the first inner partition plate, the inner ring plate, the second inner partition plate and the second column steel pipe, the longitudinal bars are bound together through a plurality of stirrups to form an in-pipe steel reinforcement cage, and concrete is poured in the in-pipe steel reinforcement cage.
The upper end of the node steel pipe is provided with a first node overhanging steel pipe which is connected with a first column steel pipe;
the lower end of the node steel pipe is provided with a second node overhanging steel pipe which is connected with a second column steel pipe;
the first node overhanging steel pipe and the second node overhanging steel pipe are both hollow rectangular cylinders.
The node steel pipe is connected with the first node overhanging steel pipe through a first inner partition plate;
the node steel pipe is connected with the second node overhanging steel pipe through a second inner partition plate.
The node steel pipe, the first node overhanging steel pipe and the second node overhanging steel pipe are all manufactured by welding the edges of rectangular steel plates or cutting seamless rectangular steel pipes;
vertical gaps of 10-20mm are reserved between the first column steel pipe and the first node overhanging steel pipe and between the second column steel pipe and the second node overhanging steel pipe.
The inner ring plate is positioned in the middle of the inner cavity of the node steel pipe.
And a plurality of longitudinal bar through holes for fixing longitudinal bars are formed in the first inner baffle plate, the inner ring plate and the second inner baffle plate.
The flanges of the first steel beam, the second steel beam, the third steel beam and the fourth steel beam are welded with the corresponding first inner partition plate and the second inner partition plate respectively, and the steel beam web plate is connected with the node connecting web plate through bolts.
First inner baffle and second inner baffle are the rectangle four sides and have four trapezoidal cross steel sheet, and central round hole has all been seted up at the center of first inner baffle and second inner baffle, and the longitudinal bar through hole has been seted up in the four corners of first inner baffle and second inner baffle.
The node connecting web is a rectangular steel plate, a plurality of bolt connecting holes are formed in one edge of the node connecting web, and other edges are welded with the first inner partition plate, the second inner partition plate and the node steel pipe respectively.
The inner ring plate is a rectangular steel plate, a circular through hole is formed in the center of the inner ring plate, and longitudinal rib through holes are formed in four corners of the inner ring plate.
Compared with the prior art, the node steel pipe coated outside the node core area can effectively restrain the core concrete and strengthen the node strength. First inner baffle and second inner baffle are arranged at the upper end and the lower end of the node steel pipe, and the steel beam is conveniently and reliably connected with the node. According to the utility model, the inner ring plate is arranged in the middle of the inner cavity of the node steel pipe, so that the problem that the core part in the middle of the node is easy to damage is solved. Two inner partition plates are arranged at the upper end and the lower end of the steel pipe, so that strong restraint is generated on the concrete in the node area to improve the performance of the concrete, the requirement of strong nodes is met, and meanwhile, the concrete in the steel pipe cavity can be integrally formed and pouring is facilitated. The utility model adopts the combination of the steel pipe and the inner partition plate in the node reinforcing measure, and simultaneously realizes the aim of firmly connecting the strong node and the column with the steel beam.
Furthermore, the four steel beams are welded with the nodes through flanges, and the steel beam web plates are connected with the node connecting web plates through bolts, so that the nodes can effectively transfer bending moments at two ends and shearing force at beam ends.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of an inner ring plate of the present invention;
FIG. 5 is a schematic view of a connecting web of the present invention;
in the figure: 1. the steel pipe comprises a first column steel pipe, 2, a second column steel pipe, 31, a first steel beam, 32, a second steel beam, 33, a third steel beam, 34, a fourth steel beam, 4, a node steel pipe, 51, a first node extending steel pipe, 52, a second node extending steel pipe, 6, an inner ring plate, 71, a first inner partition plate, 72, a second inner partition plate, 8, a node connecting web plate, 9, a longitudinal rib, 10, a stirrup, 11, concrete, 12, a central round hole, 13, a longitudinal rib through hole, 14 and a bolt connecting hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, 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 utility model and the technical idea of the utility model, and the utility model is covered by the protection scope of the utility model according to the common technical knowledge and the conventional means in the field.
Referring to fig. 1 and 2, the steel tube joint comprises a joint steel tube 4, wherein a first column steel tube 1 and a second column steel tube 2 are respectively arranged at the upper end and the lower end of the joint steel tube 4, a first inner partition plate 71 and a second inner partition plate 72 are arranged inside the joint steel tube 4, an inner ring plate 6 is arranged between the first inner partition plate 71 and the second inner partition plate 72, and the inner ring plate 6 is positioned in the middle of an inner cavity of the joint steel tube 4. A node connecting web 8 is longitudinally arranged between the first inner partition plate 71 and the second inner partition plate 72, four surfaces of the node steel pipe 4 are respectively provided with a first steel beam 31, a second steel beam 32, a third steel beam 33 and a fourth steel beam 34, and the first steel beam 31, the second steel beam 32, the third steel beam 33 and the fourth steel beam 34 are all connected with the first inner partition plate 71, the second inner partition plate 72 and the node connecting web 8; a plurality of longitudinal bars 9 penetrate through the first column steel pipe 1, the first inner partition plate 71, the inner ring plate 6, the second inner partition plate 72 and the second column steel pipe 2, the longitudinal bars 9 are bound together through a plurality of stirrups 10 to form a reinforcement cage in the pipe, and concrete is poured in the reinforcement cage in the pipe.
A first node overhanging steel pipe 51 is arranged at the upper end of the node steel pipe 4, and the first node overhanging steel pipe 51 is connected with the first column steel pipe 1; a second node overhanging steel pipe 52 is arranged at the lower end of the node steel pipe 4, and the second node overhanging steel pipe 52 is connected with the second column steel pipe 2; the first node overhanging steel pipe 51 and the second node overhanging steel pipe 52 are both hollow rectangular cylinders. The node steel pipe 4 is connected with the first node steel pipe 51 extending outwards through a first inner partition plate 71; the node steel pipe 4 is connected with the second node overhanging steel pipe 52 through a second inner partition plate 72. The first inner baffle plate 71, the inner ring plate 6 and the second inner baffle plate 72 are provided with a plurality of longitudinal bar through holes 13 for fixing the longitudinal bars 9.
The steel beam comprises two upper and lower horizontal flange plates and a middle web plate, the flanges of the first steel beam 31, the second steel beam 32, the third steel beam 33 and the fourth steel beam 34 are respectively welded with the corresponding first inner partition plate 71 and the second inner partition plate 72, and the steel beam web plate is connected with the node connecting web plate 8 through bolts.
Referring to fig. 3, the first inner partition plate 71 and the second inner partition plate 72 are both rectangular cross-shaped steel plates with four trapezoidal sides, the centers of the first inner partition plate 71 and the second inner partition plate 72 are both provided with a central circular hole 12, and four corners of the first inner partition plate 71 and the second inner partition plate 72 are provided with longitudinal bar through holes 13. The thickness of the first inner partition plate 71 and the second inner partition plate 72 is the same as that of the flange of the steel beam, an arc chamfer is arranged at the junction of the trapezoid and the rectangle of the four sides, and the waist edge of the trapezoid is an oblique angle with the gradient not larger than 1: 4. The side lengths of the first inner partition plate 71 and the second inner partition plate 72 are 50mm larger than the diameter of the node steel pipe 4.
Referring to fig. 4, the node connecting web 8 is a rectangular steel plate, one edge of the node connecting web 8 is provided with a plurality of bolt connecting holes 17, and the other edges are respectively welded with the first inner partition plate 71, the second inner partition plate 72 and the node steel pipe 4.
Referring to fig. 5, the inner annular plate 6 is a rectangular steel plate, a circular through hole is formed in the center of the inner annular plate 6, and longitudinal bar through holes are formed in four corners of the inner annular plate 6. The thickness of the inner ring plate 6 is 10-20 mm.
The node steel pipe 4, the first node overhanging steel pipe 51 and the second node overhanging steel pipe 52 are all made by welding the edges of rectangular steel plates or cutting seamless rectangular steel pipes;
vertical gaps of 10-20mm are reserved between the first column steel pipe 1 and the first node steel pipe 51 and between the second column steel pipe 2 and the second node steel pipe 52. The lengths of the first node overhanging steel pipe 51 and the second node overhanging steel pipe 52 are 1/2 with side lengths.
The concrete is common concrete, light aggregate concrete or high-performance concrete.
The basic processing scheme of the rectangular steel pipe confined reinforced concrete column and steel beam joint on site is as follows:
1) an inner ring plate 6 is welded in the middle of the inner cavity of the node steel pipe 4;
2) respectively welding a first inner baffle plate 71 and a second inner baffle plate 72 to the upper side and the lower side of the node steel pipe 4;
3) penetrating a longitudinal bar 9 through longitudinal bar through holes 13 on an inner ring plate 6, a first inner baffle plate 71 and a second inner baffle plate 72, and then binding a stirrup 10 and the longitudinal bar 9 to form a column reinforcement cage;
4) welding the first node extension steel pipe 51 and the second node extension steel pipe 52 to the first inner partition 71 and the second inner partition 72, respectively;
5) hoisting a first column steel pipe 1 and a second column steel pipe 2 to be sleeved outside the upper and lower sections of reinforcement cages, pouring concrete 11, and maintaining;
6) the flanges of the first steel beam 31, the second steel beam 32, the third steel beam 33 and the fourth steel beam 34 are welded with the first inner partition plate 71 and the second inner partition plate 72, and the steel beam web plate is connected with the joint connecting web plate 8 through bolts to form a rectangular steel pipe constraint reinforced concrete column and steel beam frame joint.
Claims (10)
1. The utility model provides a rectangle steel pipe restraint reinforced concrete post and girder steel node, a serial communication port, including node steel pipe (4), the upper end and the lower extreme of node steel pipe (4) are provided with first column steel pipe (1) and second column steel pipe (2) respectively, node steel pipe (4) are inside to be provided with first inner baffle (71) and second inner baffle (72), be provided with between first inner baffle (71) and second inner baffle (72) interior crown plate (6), vertically be provided with node connection web (8) between first inner baffle (71) and second inner baffle (72), be provided with first girder steel (31) on the four sides of node steel pipe (4) respectively, second girder steel (32), third girder steel (33) and fourth girder steel (34), first girder steel (31), second girder steel (32), third girder steel (33) and fourth girder steel (34) all with first inner baffle (71), The second inner partition plate (72) is connected with the node connecting web plate (8);
a plurality of longitudinal bars (9) penetrate through the first column steel pipe (1), the first inner partition plate (71), the inner ring plate (6), the second inner partition plate (72) and the second column steel pipe (2), the longitudinal bars (9) are bound together through a plurality of stirrups (10) to form an in-pipe steel reinforcement cage, and concrete is poured in the in-pipe steel reinforcement cage.
2. The rectangular steel tube confined reinforced concrete column and steel beam node according to claim 1, characterized in that the upper end of the node steel tube (4) is provided with a first node overhanging steel tube (51), and the first node overhanging steel tube (51) is connected with the first column steel tube (1);
a second node overhanging steel pipe (52) is arranged at the lower end of the node steel pipe (4), and the second node overhanging steel pipe (52) is connected with a second column steel pipe (2);
the first node overhanging steel pipe (51) and the second node overhanging steel pipe (52) are both hollow rectangular cylinders.
3. The rectangular steel tube confined reinforced concrete column and steel beam node as claimed in claim 2, wherein the node steel tube (4) is connected with the first node overhanging steel tube (51) through a first inner spacer (71);
the node steel pipe (4) is connected with the second node overhanging steel pipe (52) through a second inner partition plate (72).
4. The rectangular steel tube confined reinforced concrete column and steel beam node according to claim 2, wherein the node steel tube (4), the first node overhanging steel tube (51) and the second node overhanging steel tube (52) are all made by welding the edges of rectangular steel plates or by cutting seamless rectangular steel tubes;
vertical gaps of 10-20mm are reserved between the first column steel pipe (1) and the first node overhanging steel pipe (51) and between the second column steel pipe (2) and the second node overhanging steel pipe (52).
5. A rectangular steel tube confined reinforced concrete column and steel beam joint as claimed in claim 1, wherein the inner ring plate (6) is located in the middle of the inner cavity of the joint steel tube (4).
6. The rectangular steel tube confined reinforced concrete column and steel beam joint as claimed in claim 1, wherein the first inner partition plate (71), the inner ring plate (6) and the second inner partition plate (72) are provided with a plurality of longitudinal bar through holes (13) for fixing the longitudinal bars (9).
7. The rectangular steel tube confined reinforced concrete column and steel beam joint as claimed in claim 1, wherein the flanges of the first steel beam (31), the second steel beam (32), the third steel beam (33) and the fourth steel beam (34) are welded with the corresponding first inner partition plate (71) and the second inner partition plate (72), respectively, and the steel beam web is connected with the joint connecting web (8) by bolts.
8. The rectangular steel tube confined reinforced concrete column and steel beam joint as claimed in claim 1, wherein the first inner partition plate (71) and the second inner partition plate (72) are rectangular cross-shaped steel plates with four trapezoidal sides, the centers of the first inner partition plate (71) and the second inner partition plate (72) are both provided with a central circular hole (12), and four corners of the first inner partition plate (71) and the second inner partition plate (72) are provided with longitudinal rib through holes (13).
9. The rectangular steel tube confined reinforced concrete column and steel beam node as claimed in claim 1, wherein the node connecting web (8) is a rectangular steel plate, one edge of the node connecting web (8) is provided with a plurality of bolt connecting holes (17), and the other edges are respectively welded with the first inner partition plate (71), the second inner partition plate (72) and the node steel tube (4).
10. The rectangular steel tube confined reinforced concrete column and steel beam joint as claimed in claim 1, wherein the inner ring plate (6) is a rectangular steel plate, the center of the inner ring plate (6) is provided with a circular through hole, and four corners of the inner ring plate (6) are provided with longitudinal bar through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920056.0U CN215563327U (en) | 2021-08-16 | 2021-08-16 | Rectangular steel pipe confined reinforced concrete column and steel beam joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920056.0U CN215563327U (en) | 2021-08-16 | 2021-08-16 | Rectangular steel pipe confined reinforced concrete column and steel beam joint |
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| Publication Number | Publication Date |
|---|---|
| CN215563327U true CN215563327U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121920056.0U Active CN215563327U (en) | 2021-08-16 | 2021-08-16 | Rectangular steel pipe confined reinforced concrete column and steel beam joint |
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| CN (1) | CN215563327U (en) |
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2021
- 2021-08-16 CN CN202121920056.0U patent/CN215563327U/en active Active
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