Rectangular steel tube concrete column-H-shaped steel beam support connection node and connection method

Abstract

The present invention proposes a rectangular steel tube concrete column-H-shaped steel beam support type connection node and connection method, which belongs to the field of building construction design technology, and specifically includes a support type connection piece, which is arranged at the connection between the rectangular steel tube concrete column and the H-shaped steel beam, and a triangular structure is formed between the support type connection piece, the rectangular steel tube concrete column and the H-shaped steel beam, and a 30° to 60° angle is formed between the central axis of the support type connection piece and the central axis of the H-shaped steel beam. The support type connection node of the present invention is a new type of connection method that can both ensure reliable force transmission and facilitate construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction design, and relates to a design technology of a connection structure between a steel tube concrete column and a steel beam, specifically a rectangular steel tube concrete column-H-shaped steel beam support type connection node and a connection method. Background Art

[0002] In the past 10 years, my country has built super high-rise buildings with a height of 200m to 400m, most of which adopt steel frame-core tube structure. The outer frame adopts steel-reinforced concrete or steel tube concrete columns, and the floor beam adopts H-shaped steel beams, which can improve the performance difference between the steel frame and the concrete core tube due to creep and shrinkage, forming a hybrid frame-reinforced concrete core tube (hybrid) structure. The hybrid frame is suitable for rectangular steel tube concrete frame columns. With the development of the prefabricated steel structure industry, steel structure buildings with rectangular steel tube columns and H-shaped steel beams as beam-column systems will be used more and more.

[0003] In steel structure buildings, excessively large steel column cross-sections will result in convex column corners at the four corners of each functional room of the residence, affecting the indoor building function. The use of rectangular steel tube concrete columns with large aspect ratio cross-sections can effectively solve this problem. Properly increasing the aspect ratio of the rectangular steel tube concrete column cross-section can ensure that the bending stiffness and bearing capacity in the direction of the strong axis are as large as possible without protruding from the wall in the weak axis direction, thereby effectively improving the force efficiency of the cross-section, reducing the amount of steel used, and obtaining good economic benefits. However, due to the small cross-sectional size of the rectangular steel tube concrete column, the connection forms of commonly used nodes such as square steel tube column-H-shaped steel beam node and circular steel tube column-H-shaped steel beam node cannot be applied to this type of node. For example: internal partition type connection and partition through-type connection will hinder the pouring of concrete inside the rectangular steel pipe column; the large size of the outer ring plate node brings inconvenience to the handling of building space; the welds at the rib plate welding points of the outer rib ring plate node are easily damaged first and overhead welding and side welding are required at the construction site, which has high requirements on welding process, large welding volume and slow construction speed; the through-bolt connection will cause unevenness of the column wall and affect the pouring and vibration of concrete; the high-strength bolt connection of the column wall window will weaken the integrity of the steel pipe column, and the welding workload is large and the welding quality is not easy to guarantee.

[0004] In view of the shortcomings of the existing connection nodes between closed-section steel tube columns and H-shaped steel beams, it is urgent to explore and innovate the connection structure of rectangular steel tube concrete columns with large aspect ratios and H-shaped steel beam nodes, and to find some connection methods that can ensure reliable force transmission and facilitate construction. Summary of the invention

[0005] In view of the problem that the connection nodes of the existing rectangular steel tube concrete column with a large aspect ratio cross-section and H-shaped steel beam are insufficient, the present invention proposes a rectangular steel tube concrete column-H-shaped steel beam support type connection node and a connection method, which connects the rectangular steel tube concrete column and the H-shaped steel beam by installing an I-beam support at the connection node between the two, eliminates the welding of the beam flange plate and the column flange plate, and simultaneously eliminates the stiffening plate at the corresponding position. It is a new connection method that can ensure reliable force transmission and facilitate construction.

[0006] The specific technical solution is as follows:

[0007] A rectangular steel tube concrete column-H-shaped steel beam supported connection node, characterized in that it includes a supporting connection member, which is arranged at the connection between the rectangular steel tube concrete column and the H-shaped steel beam, and a triangular structure is formed between the supporting connection member, the rectangular steel tube concrete column and the H-shaped steel beam, and an angle of 30° to 60° is formed between the central axis of the supporting connection member and the central axis of the H-shaped steel beam.

[0008] It is further defined that supporting connecting members are provided above and below the H-shaped steel beam.

[0009] It is further defined that the connection between the rectangular steel tube concrete column and the supporting connector and the connection between the H-shaped steel beam and the supporting connector are both rigid connections.

[0010] It is further defined that the connection point between the supporting connector and the H-shaped steel beam is 300 to 600 mm away from the outer skin of the rectangular steel tube concrete column, and the connection point between the supporting connector and the rectangular steel tube concrete column is 300 to 600 mm away from the outer skin of the H-shaped steel beam.

[0011] It is further defined that filling walls are provided at connection nodes between the rectangular steel tube concrete columns, H-shaped steel beams and supporting connectors.

[0012] It is further defined that the outer wall of the infill wall extends to the connection node between the rectangular steel tube concrete column and the supporting connector and the connection node between the H-shaped steel beam and the supporting connector.

[0013] It is further defined that the supporting connecting member is an I-beam.

[0014] The connection method of the rectangular steel tube concrete column-H-shaped steel beam support type connection node comprises the following steps:

[0015] 1) The web of the H-shaped steel beam is fixedly connected to the flange plate of the rectangular steel tube concrete column;

[0016] 2) The upper flange of the H-shaped steel beam is fixedly connected to one end of the web of the supporting connector above the H-shaped steel beam, and the other end of the web of the supporting connector is fixedly connected to the web of the rectangular steel tube concrete column; the horizontal bending moment of the upper flange plate of the H-shaped steel beam is first transmitted to the web of the supporting connector above the H-shaped steel beam, and then transmitted to the left and right flanges of the supporting connector through the web of the supporting connector, and then transmitted to the left and right webs of the rectangular steel tube concrete column through the left and right flanges of the supporting connector, and then transmitted to the flange plate of the rectangular steel tube concrete column through the left and right webs of the rectangular steel tube concrete column, so as to form an integral force-bearing structure;

[0017] 3) The lower flange of the H-shaped steel beam is fixedly connected to one end of the web of the supporting connector below the H-shaped steel beam, and the other end of the web of the supporting connector is fixedly connected to the web of the rectangular steel tube concrete column; the horizontal bending moment of the lower flange plate of the H-shaped steel beam is first transmitted to the web of the supporting connector below the H-shaped steel beam, and then transmitted to the left and right flanges of the supporting connector through the web of the supporting connector, and then transmitted to the left and right webs of the rectangular steel tube concrete column through the left and right flanges of the supporting connector, and then transmitted to the flange plate of the rectangular steel tube concrete column through the left and right webs of the rectangular steel tube concrete column, so as to form an overall force-bearing structure.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The rectangular steel tube concrete column-H-shaped steel beam supporting connection node of the present invention comprises a supporting connection piece, which is arranged at the connection between the rectangular steel tube concrete column and the H-shaped steel beam, and a triangular structure is formed between the supporting connection piece, the rectangular steel tube concrete column and the H-shaped steel beam, and the rectangular steel tube concrete column and the H-shaped steel beam are connected by the supporting connection piece; this connection method replaces the existing method of directly welding the flange plate of the rectangular steel tube concrete column and the flange plate of the steel beam, and eliminates the stiffening plate. It is a new connection method that can ensure reliable force transmission and facilitate construction.

[0020] 2. The connection point between the supporting connector and the H-shaped steel beam is 300 to 600 mm away from the outer skin of the rectangular steel tube concrete column. The connection point between the supporting connector and the rectangular steel tube concrete column is 300 to 600 mm away from the outer skin of the H-shaped steel beam. This distance can ensure the supporting force of the supporting connector and ensure that no excess connection space is occupied.

[0021] 3. A filling wall is provided at the connection nodes between the rectangular steel tube concrete column, the H-shaped steel beam and the supporting connector. The outer wall of the filling wall extends to the connection node between the rectangular steel tube concrete column and the supporting connector and the connection node between the H-shaped steel beam and the supporting connector. The filling wall can prevent the connection node from being exposed to the outside, thereby ensuring the beautification of the building's appearance and the ease of use.

[0022] 4. A connection method for a rectangular steel tube concrete column-H-shaped steel beam support connection node of the present invention, wherein the upper flange of the H-shaped steel beam is fixedly connected to one end of the web of the support connection piece above the H-shaped steel beam, the lower flange of the H-shaped steel beam is fixedly connected to one end of the web of the support connection piece below the H-shaped steel beam, and the other ends of the webs of the two support connections are fixedly connected to the web of the rectangular steel tube concrete column 3; when in use, the horizontal bending moment of the upper flange of the H-shaped steel beam is first transmitted to the web of the support connection piece above the H-shaped steel beam, and the lower flange of the H-shaped steel beam is fixedly connected to the web of the support connection piece below the H-shaped steel beam. The horizontal bending moment is first transferred to the web of the supporting connector under the H-shaped steel beam, and the horizontal bending moment of the upper flange plate of the H-shaped steel beam and the horizontal bending moment of the lower flange plate of the H-shaped steel beam are respectively transferred to the left flange and the right flange of the supporting connector through the web of the supporting connector, and then transferred to the left web and the right web of the rectangular steel tube concrete column through the left web and the right web of the rectangular steel tube concrete column, forming an overall force-bearing structure, and forming a good force-bearing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a rectangular steel tube concrete column-H-shaped steel beam support connection node of the present invention;

[0024] Figure 2 A top view of a rectangular steel tube concrete column-H-shaped steel beam support connection node of the present invention;

[0025] Among them, 1-supporting connector, 2-H-shaped steel beam, 3-rectangular steel tube concrete column. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the implementation modes described below.

[0027] The rectangular steel tube concrete column-H-shaped steel beam supporting connection node of the present invention is characterized in that it includes a supporting connector 1, which is arranged at the connection between the rectangular steel tube concrete column 3 and the H-shaped steel beam 2, and a triangular structure is formed between the supporting connector 1, the rectangular steel tube concrete column 3 and the H-shaped steel beam 2, and the central axis of the supporting connector 1 and the central axis of the H-shaped steel beam 2 form an angle of 30° to 60°. The supporting connector 1 is arranged above and below the H-shaped steel beam 2. The connection between the rectangular steel tube concrete column 3 and the supporting connector 1 and the connection between the H-shaped steel beam 2 and the supporting connector 1 are both rigid connections. The connection point between the supporting connector 1 and the H-shaped steel beam 2 is 300 to 600 mm away from the outer skin of the rectangular steel tube concrete column 3, and the connection point between the supporting connector 1 and the rectangular steel tube concrete column 3 is 300 to 600 mm away from the outer skin of the H-shaped steel beam 2. A filling wall is arranged at the connection node between the rectangular steel tube concrete column 3, the H-shaped steel beam 2 and the supporting connector 1. A connection plate is provided at the connection between the H-shaped steel beam 2 and the rectangular steel tube concrete column 3. The outer wall of the infill wall extends to the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 and the connection node between the H-shaped steel beam 2 and the supporting connector 1. The supporting connector 1 is an I-shaped steel.

[0028] The connection method of the rectangular steel tube concrete column-H-shaped steel beam support type connection node comprises the following steps:

[0029] 1) The web of the H-shaped steel beam 2 is fixedly connected to the flange plate of the rectangular steel tube concrete column 3;

[0030] 2) The upper flange of the H-shaped steel beam 2 is fixedly connected to one end of the web of the supporting connector 1 above the H-shaped steel beam 2, and the other end of the web of the supporting connector 1 is fixedly connected to the web of the rectangular steel tube concrete column 3; the horizontal bending moment of the upper flange plate of the H-shaped steel beam 2 is first transferred to the web of the supporting connector 1 above the H-shaped steel beam 2, and then transferred to the left and right flanges of the supporting connector 1 through the web of the supporting connector 1, and then transferred to the left and right webs of the rectangular steel tube concrete column 3 through the left and right flanges of the supporting connector 1, and then transferred to the flange plate of the rectangular steel tube concrete column 3 through the left and right webs of the rectangular steel tube concrete column 3, so as to form an integral force-bearing structure;

[0031] 3) The lower flange of the H-shaped steel beam 2 is fixedly connected to one end of the web of the supporting connector 1 below the H-shaped steel beam 2, and the other end of the web of the supporting connector 1 is fixedly connected to the web of the rectangular steel tube concrete column 3; the horizontal bending moment of the lower flange plate of the H-shaped steel beam 2 is first transmitted to the web of the supporting connector 1 below the H-shaped steel beam 2, and then transmitted to the left and right flanges of the supporting connector 1 through the web of the supporting connector 1, and then transmitted to the left and right webs of the rectangular steel tube concrete column 3 through the left and right flanges of the supporting connector 1, and then transmitted to the flange plate of the rectangular steel tube concrete column 3 through the left and right webs of the rectangular steel tube concrete column 3, so as to form an overall force-bearing structure.

[0032] Example 1

[0033] See also Figure 1 and Figure 2 The rectangular steel tube concrete column-H-shaped steel beam supporting connection node of this embodiment includes a supporting connection member 1, which is arranged at the connection between the rectangular steel tube concrete column 3 and the H-shaped steel beam, one end of the supporting connection member 1 is connected to the H-shaped steel beam 2, and the other end of the supporting connection member 1 is connected to the rectangular steel tube concrete column 3, and the supporting connection member 1, the rectangular steel tube concrete column 3 and the H-shaped steel beam 2 together form an isosceles triangle structure, the angle between the central axis of the supporting connection member 1 and the central axis of the H-shaped steel beam 2 is 45°, the supporting connection member 1 is arranged above and below the H-shaped steel beam, and the supporting connection member 1 is symmetrically arranged along the central axis of the H-shaped steel beam; the rectangular steel tube concrete column 3 and the supporting connection member 1 are connected to each other. The connection method is welding, and the connection method between the H-shaped steel beam 2 and the supporting connector 1 is welding. The connection node between the supporting connector 1 and the H-shaped steel beam 2 is 450mm away from the outer skin of the rectangular steel tube concrete column 3, and the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 is 450mm away from the outer skin of the H-shaped steel beam 2. A filling wall is provided at the connection node between the rectangular steel tube concrete column 3, the H-shaped steel beam 2 and the supporting connector 1. The outer wall of the filling wall extends to the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 and the connection node between the H-shaped steel beam 2 and the supporting connector 1, and wraps the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 and the connection node between the H-shaped steel beam 2 and the supporting connector 1. The supporting connector 1 is an I-shaped steel.

[0034] Example 2

[0035] Different from Example 1, in the rectangular steel tube concrete column-H-shaped steel beam supporting connection node of this embodiment, the supporting connector 1, the rectangular steel tube concrete column 3 and the H-shaped steel beam 2 together form a triangular structure, the angle between the central axis of the supporting connector 1 and the central axis of the H-shaped steel beam 2 is 30°, the connection between the rectangular steel tube concrete column 3 and the supporting connector 1 is bolted, the connection between the H-shaped steel beam 2 and the supporting connector 1 is bolted, the connection node between the supporting connector 1 and the H-shaped steel beam 2 is 300㎜ away from the outer skin of the rectangular steel tube concrete column 3, and the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 is 520㎜ away from the outer skin of the H-shaped steel beam 2. The supporting connector 1 of this embodiment is a steel connecting column, which is connected to the flange plate of the rectangular steel tube concrete column 3 at the web of the H-shaped steel beam 2. The rest is the same as Example 1.

[0036] Example 3

[0037] Different from Example 1, in the rectangular steel tube concrete column-H-shaped steel beam supporting connection node of this embodiment, the supporting connector 1, the rectangular steel tube concrete column 3 and the H-shaped steel beam 2 together form a triangular structure, the angle between the central axis of the supporting connector 1 and the central axis of the H-shaped steel beam 2 is 60°, the connection between the rectangular steel tube concrete column 3 and the supporting connector 1 is cemented, the connection node between the supporting connector 1 and the H-shaped steel beam 2 is 520㎜ away from the outer skin of the rectangular steel tube concrete column 3, and the connection node between the rectangular steel tube concrete column 3 and the supporting connector 1 is 300㎜ away from the outer skin of the H-shaped steel beam 2. The supporting connector 1 of this embodiment is a steel connecting column. The rest is the same as Example 1.

[0038] Example 4

[0039] Different from Example 1, in the rectangular steel tube concrete column-H-shaped steel beam support type connection node of this embodiment, the connection node between the support type connector 1 and the H-shaped steel beam 2 is 600mm away from the outer skin of the rectangular steel tube concrete column 3, and the connection node between the rectangular steel tube concrete column 3 and the support type connector 1 is 600mm away from the outer skin of the H-shaped steel beam 2. The rest is the same as Example 1.

[0040] The rigid connection in the present invention is not limited to the welding, bolt connection or bonding described in the above embodiments, and any other connection method that can meet the requirements of the steel connecting parts is also acceptable.

[0041] Example 5

[0042] The connection method of the rectangular steel tube concrete column-H-shaped steel beam support type connection node of this embodiment includes the following steps:

[0043] 1) The web plate of the H-shaped steel beam 2 and the flange plate of the rectangular steel tube concrete column 3 are fixedly connected by bolts;

[0044] 2) The upper flange plate of the H-shaped steel beam 2 is welded to one end of the web of the supporting connector 1 above the H-shaped steel beam 2 by groove welding, and the other end of the web of the supporting connector 1 is welded to the web of the rectangular steel tube concrete column 3; the horizontal bending moment of the upper flange plate of the H-shaped steel beam 2 is first transferred to the web of the supporting connector 1 above the H-shaped steel beam 2, and then transferred to the left and right flanges of the supporting connector 1 through the web of the supporting connector 1, and then transferred to the left and right webs of the rectangular steel tube concrete column 3 through the left and right flanges of the supporting connector 1, and then transferred to the flange plate of the rectangular steel tube concrete column 3 through the left and right webs of the rectangular steel tube concrete column 3, so as to form an integral force-bearing structure;

[0045] 3) The lower flange plate of the H-shaped steel beam 2 is welded to one end of the web of the supporting connector 1 below the H-shaped steel beam 2 by groove welding, and the other end of the web of the supporting connector 1 is welded to the web of the rectangular steel tube concrete column 3; the horizontal bending moment of the lower flange plate of the H-shaped steel beam 2 is first transferred to the web of the supporting connector 1 below the H-shaped steel beam 2, and then transferred to the left and right flanges of the supporting connector 1 through the web of the supporting connector 1, and then transferred to the left and right webs of the rectangular steel tube concrete column 3 through the left and right flanges of the supporting connector 1, and then transferred to the flange plate of the rectangular steel tube concrete column 3 through the left and right webs of the rectangular steel tube concrete column 3, so as to form an integral force-bearing structure.

Claims

1. Rectangular steel tube concrete column-H-shaped steel beam support connection node, characterized in that: The invention comprises a supporting connector (1), wherein the supporting connector (1) is arranged at the connection between a rectangular steel tube concrete column (3) and an H-shaped steel beam (2), and a triangular structure is formed between the supporting connector (1), the rectangular steel tube concrete column (3) and the H-shaped steel beam (2), and an angle of 30° to 60° is formed between the central axis of the supporting connector (1) and the central axis of the H-shaped steel beam (2); the upper flange plate of the H-shaped steel beam (2) and one end of the web of the supporting connector (1) above the H-shaped steel beam (2) are welded by groove welding, and the lower flange plate of the H-shaped steel beam (2) and one end of the web of the supporting connector (1) below the H-shaped steel beam (2) are welded by groove welding; the other end of the web of the supporting connector (1) is welded to the web of the rectangular steel tube concrete column (3); The rectangular steel tube concrete column (3) is a rectangular steel tube concrete column with a large aspect ratio cross-section, and is suitable for super high-rise buildings with a height of 200m to 400m; A filling wall is provided at the connection node between the rectangular steel tube concrete column (3), the H-shaped steel beam (2) and the supporting connector (1); the outer wall of the filling wall extends to the connection node between the rectangular steel tube concrete column (3) and the supporting connector (1) and the connection node between the H-shaped steel beam (2) and the supporting connector (1); The connection method of the rectangular steel tube concrete column-H-shaped steel beam support type connection node is: 1) The web plate of the H-shaped steel beam (2) is fixedly connected to the flange plate of the rectangular steel tube concrete column (3); 2) The upper flange of the H-shaped steel beam (2) is fixedly connected to one end of the web of the supporting connector (1) above the H-shaped steel beam (2), and the other end of the web of the supporting connector (1) is fixedly connected to the web of the rectangular steel tube concrete column (3); the horizontal bending moment of the upper flange of the H-shaped steel beam (2) is firstly transmitted to the web of the supporting connector (1) above the H-shaped steel beam (2), and then transmitted to the left flange and the right flange of the supporting connector (1) through the web of the supporting connector (1), and then transmitted to the left web and the right web of the rectangular steel tube concrete column (3) through the left flange and the right flange of the supporting connector (1), and then transmitted to the flange of the rectangular steel tube concrete column (3) through the left web and the right web of the rectangular steel tube concrete column (3), so as to form an integral force-bearing structure; 3) The lower flange of the H-shaped steel beam (2) is fixedly connected to one end of the web of the supporting connector (1) below the H-shaped steel beam (2), and the other end of the web of the supporting connector (1) is fixedly connected to the web of the rectangular steel tube concrete column (3); the horizontal bending moment of the lower flange of the H-shaped steel beam (2) is firstly transmitted to the web of the supporting connector (1) below the H-shaped steel beam (2), and then transmitted to the left and right flanges of the supporting connector (1) through the web of the supporting connector (1), and then transmitted to the left and right webs of the rectangular steel tube concrete column (3) through the left and right flanges of the supporting connector (1), and then transmitted to the flange of the rectangular steel tube concrete column (3) through the left and right webs of the rectangular steel tube concrete column (3), so as to form an integral force-bearing structure.

2. The rectangular steel tube concrete column-H-shaped steel beam support connection node as claimed in claim 1, characterized in that: Supporting connecting parts (1) are provided above and below the H-shaped steel beam (2).

3. The rectangular steel tube concrete column-H-shaped steel beam support connection node as claimed in claim 2, characterized in that: The connection between the rectangular steel tube concrete column (3) and the supporting connector (1) and the connection between the H-shaped steel beam (2) and the supporting connector (1) are both rigid connections.

4. The rectangular steel tube concrete column-H-shaped steel beam support connection node as claimed in claim 3, characterized in that: The connection point between the supporting connector (1) and the H-shaped steel beam (2) is 300 to 600 mm away from the outer skin of the rectangular steel tube concrete column (3), and the connection point between the supporting connector (1) and the rectangular steel tube concrete column (3) is 300 to 600 mm away from the outer skin of the H-shaped steel beam (2).

5. The rectangular steel tube concrete column-H-shaped steel beam support connection node as claimed in claim 1, characterized in that: The supporting connecting member (1) is an I-shaped steel.

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