Fabricated concrete filled steel tubular column frame structure node

Abstract

The utility model discloses a fabricated concrete filled steel tubular column frame structure node, and belongs to the technical field of fabricated buildings. The structural joint comprises a column body and a beam body arranged on the side face of the column body, and further comprises a connecting plate located between the column body and the beam body, one end of the connecting plate is arranged on the column body, and the other end of the connecting plate is connected with a connector of the beam body through a fastener; the lower reinforcing plate is annularly arranged on the side face of the column body, and the top is tightly attached to the beam body; the side plate is arranged on the lower reinforcing plate, and one end of the side plate is arranged on the side surface of the column body; a supporting groove is defined by the side plates and the lower reinforcing plate. The longitudinal projection of the connecting position of the connecting plate and the connector is within the length range of the supporting groove. The connecting plate is used for connecting the column body and the beam body, the supporting groove is defined by the lower reinforcing plate and the side plates and wraps the side face of the cross beam, the effect of supporting the column body and the cross beam connecting structure joint is achieved, and the strength of the structure joint can be enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to an assembled steel tube concrete column frame structure node. Background Art

[0002] Prefabricated concrete-filled steel tube columns are constructed by pouring concrete into steel tubes, with the steel tubes serving as the skeleton. These columns combine the advantages of both concrete and steel tubes, improving the overall load-bearing capacity of the building.

[0003] Chinese patent document CN214657807U discloses that the utility model relates to the field of building structure engineering technology, specifically to an assembled web-through steel tube concrete column and steel beam connection node. The connection node includes a vertically extending steel tube concrete column and four steel beams distributed in a "cross" shape. The connection node includes a first node plate and a second node plate. The first and second node plates are arranged in a "cross" shape. The first node plate passes through the steel tube concrete column horizontally. The first node plate is provided with a slot for the second node plate to pass through. The second node plate passes through the steel tube concrete column and the first node plate at the same time. The first and second node plates are both welded to the column wall of the steel tube concrete column, and the steel beams are fixedly installed at both ends. The connection node of the utility model solves the problem of assembled operation of closed-section columns. The steel tube concrete does not need to be disconnected in the node area, and the flange of the steel beam is no longer welded to the column wall, avoiding weld fracture and having excellent seismic performance.

[0004] In the technical solution of the above patent document, the I-beam is connected through a first node plate and a wing plate. Combined with the accompanying drawings, it can be seen that during the installation process, due to the small connection area between the first node plate and the steel tube concrete column, the node strength and stability are insufficient. When the weight of the beam is large, it may cause problems such as the I-beam warping, affecting the safety of the node. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled steel tube concrete column frame structure node to solve the above-mentioned existing technical problems.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A prefabricated steel tube concrete column frame structure node includes a column body, a beam body arranged on the side of the column body, and further includes: a connecting plate, which is located between the column body and the beam body, and one end is arranged on the column body, and the other end is connected to the connecting head of the beam body by a fastener; a lower reinforcing plate, which is arranged in a ring on the side of the column body, and the top is close to the beam body; a side plate, which is arranged on the lower reinforcing plate, and one end is arranged on the side of the column body; the side plate and the lower reinforcing plate enclose a support groove; the longitudinal projection of the connection position of the connecting plate and the connecting head is within the length range of the support groove.

[0008] Furthermore, the structural node further includes: a fixing plate, which is arranged on the side surface of the column; the connecting plate is arranged on the fixing plate, and the two are arranged perpendicular to each other.

[0009] Furthermore, the structural node also includes: a lower connecting plate, one end of which is arranged on the side surface of the column, and the top is connected to the connecting plate and the fixing plate; and an upper connecting plate, which is arranged on the other side of the connecting plate opposite to the lower connecting plate.

[0010] Furthermore, one end of the upper connecting plate is arranged on the side surface of the column, and the length of the upper connecting plate is smaller than the length of the lower connecting plate.

[0011] Furthermore, the connecting plate is located on the horizontal midline of the lower connecting plate and the upper connecting plate, and is also located on the longitudinal midline of the fixing plate.

[0012] Furthermore, a rib plate connected to the column on one side is provided at the bottom of the lower reinforcing plate; the lower reinforcing plate is connected to the beam body via fasteners.

[0013] Furthermore, the structural node further includes: an upper reinforcing plate, which is provided on the side surface of the column and is arranged parallel to the lower reinforcing plate; the upper reinforcing plate is connected to the side plate.

[0014] Furthermore, the distance between the upper reinforcing plate and the column is smaller than the distance between the lower reinforcing plate and the column.

[0015] Furthermore, the upper reinforcing plates are provided with a plurality of pieces, which are distributed at intervals in the height direction of the side plates.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. The connecting plate provided in this application is used to connect the column and the beam, and the lower reinforcing plate and the side plate are provided to form a support groove, which is wrapped around the side of the beam, playing the role of supporting the structural node connecting the column and the beam, and can enhance the strength of the structural node.

[0018] 2. The upper reinforcement plate and the lower reinforcement plate are arranged opposite to each other and are connected to the column and the side plate respectively, forming a triangular structure to further enhance the stability of the node. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is the main view of the present utility model.

[0022] Figure 3 It is a three-dimensional diagram of the present utility model.

[0023] Figure numbers: 1-column, 2-beam, 21-connecting head, 22-stirrup, 3-connecting plate, 4-lower reinforcing plate, 41-rib plate, 5-side plate, 51-support groove, 6-fixing plate, 7-lower connecting plate, 8-upper connecting plate, 9-upper reinforcing plate. DETAILED DESCRIPTION

[0024] In order to facilitate a better understanding of the present invention, the following examples are used to illustrate the present invention in conjunction with the accompanying drawings. These examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.

[0025] Example 1

[0026] A prefabricated steel tube concrete column frame structure node, such as Figure 1-Figure 3 As shown, it includes a column 1, a beam 2 arranged on the side of the column 1, and also includes: a connecting plate 3, which is located between the column 1 and the beam 2, and one end is arranged on the column 1, and the other end is connected to the connecting head 21 of the beam 2 by a fastener; a lower reinforcing plate 4, which is arranged in a ring on the side of the column 1, and the top is close to the beam 2; a side plate 5, which is arranged on the lower reinforcing plate 4, and one end is arranged on the side of the column 1; the side plate 5 and the lower reinforcing plate 4 enclose a support groove 51; the longitudinal projection of the connection position of the connecting plate 3 and the connecting head 21 is within the length range of the support groove 51.

[0027] The column can be a cylindrical or square steel pipe, and the specific selection can be made according to actual use.

[0028] The connecting head can be an I-beam, one end of which is arranged in the beam and the other end extends outward so as to be connected to the connecting plate; both the connecting head and the connecting plate can be made of I-beam, and the flange plates of the two are partially offset and removed so that the webs overlap and fit tightly, and the connecting fasteners of the two can be reinforcing bolts.

[0029] After the node is installed, concrete is poured on the node so that the connecting plate, connecting head, etc. are all wrapped with concrete.

[0030] One end of the lower reinforcing plate is connected to the column, and the connection method can be welding; it is arranged at the bottom of the beam to support the beam; the side plates are arranged on both sides of the lower reinforcing plate and one end is connected to the column, and the connection method can be welding, and fit with the beam, so as to enhance the strength of the node.

[0031] Stirrups 22 may also be provided on the outside of the connector 2, and stirrups 22 may also be provided on the outside of the connecting plate 3; after installation is completed, concrete is poured as a composite beam to improve the performance of the beam and the node.

[0032] The beam body can be connected to the connecting plate on the side of the column through the connecting head by bolts. The lower reinforcing plate and the side plate are connected to form a support groove, which wraps the side of the beam and plays the role of supporting the structural node connecting the column and the beam; stirrups are provided on the top of the connecting head and the connecting plate. After the connection is completed, concrete can be poured to wrap the stirrups.

[0033] Example 2

[0034] like Figure 1 As shown, the structural node further includes: a fixing plate 6, which is arranged on the side of the column 1; and a connecting plate 3 is arranged on the fixing plate 6, and the two are arranged perpendicular to each other.

[0035] like Figure 1 As shown, the structural node also includes: a lower connecting plate 7, one end of which is arranged on the side of the column 1 and the top is connected to the connecting plate 3 and the fixing plate 6; an upper connecting plate 8, which is arranged on the other side of the connecting plate 3 opposite to the lower connecting plate 7.

[0036] like Figure 1 As shown, one end of the upper connecting plate 8 is provided on the side surface of the column 1 , and its length is shorter than that of the lower connecting plate 7 .

[0037] like Figure 1 As shown, the connecting plate 3 is located on the horizontal center line of the lower connecting plate 7 and the upper connecting plate 8 , and is also located on the longitudinal center line of the fixing plate 6 .

[0038] One side of the fixed plate is installed on the side of the column, and the connecting plate is arranged on the fixed plate. Such arrangement avoids the contact surface between the connecting plate and the column being too small to affect the strength of the node.

[0039] The upper connecting plate, the connecting plate and the lower connecting plate are connected to form the structure of the I-beam. Rivets can be set on the upper connecting plate and the lower connecting plate to enhance the bearing capacity of the node. The length of the upper connecting plate is shorter than that of the lower connecting plate, so that there is a gap at the upper connecting plate, which makes it easier for concrete to enter the area enclosed by the fixed plate, the connecting plate, the lower connecting plate, the upper connecting plate and other components during concrete pouring, thereby enhancing the strength of the node.

[0040] Since the lengths of the upper and lower connecting plates are different, in order to facilitate the connection between the connecting plate and the connecting head, the flange plate of the connecting head (I-beam) needs to be appropriately cut so that the web plate can extend and connect with the connecting plate.

[0041] Example 3

[0042] like Figure 1-Figure 3 As shown, a rib plate 41 is provided at the bottom of the lower reinforcing plate 4 , one side of which is connected to the column 1 ; the lower reinforcing plate 4 is connected to the beam 2 via fasteners.

[0043] like Figure 1-Figure 3 As shown, the structural node further includes: an upper reinforcing plate 9 , which is provided on the side of the column 1 and is arranged parallel to the lower reinforcing plate 4 ; the upper reinforcing plate 9 is connected to the side plate 5 .

[0044] like Figure 1-Figure 3 As shown, the distance between the upper reinforcing plate 9 and the column 1 is smaller than the distance between the lower reinforcing plate 4 and the column 1 .

[0045] like Figure 1-Figure 3 As shown, the upper reinforcing plates 9 are provided in a plurality of pieces, which are distributed at intervals in the height direction of the side plates 5 .

[0046] The upper reinforcement plates are connected to the columns and side plates respectively to form a triangular structure, thereby improving the stability of the node.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the phrase "includes an element defined by ... does not exclude the presence of other identical elements in the process, method, article, or device that includes the element."

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefabricated steel tube concrete column frame structure node, comprising a column (1), a beam (2) arranged on the side of the column (1), characterized in that: Also includes: A connecting plate (3) is located between the column (1) and the beam (2), with one end provided on the column (1) and the other end connected to a connecting head (21) of the beam (2) via a fastener; A lower reinforcing plate (4) is arranged around the side of the column (1), and the top thereof is in close contact with the beam (2); A side plate (5) is provided on the lower reinforcing plate (4), and one end of the side plate is provided on the side surface of the column (1); the side plate (5) and the lower reinforcing plate (4) enclose a support groove (51); The longitudinal projection of the position where the connecting plate (3) is connected to the connecting head (21) is within the length range of the supporting groove (51).

2. The assembled steel tube concrete column frame structure node according to claim 1, characterized in that: Also includes: A fixing plate (6) is provided on the side of the column (1); The connecting plate (3) is arranged on the fixing plate (6), and the two are arranged perpendicular to each other.

3. The assembled steel tube concrete column frame structure node according to claim 2, characterized in that: Also includes: A lower connecting plate (7), one end of which is provided on the side of the column (1), and the top of which is connected to the connecting plate (3) and the fixing plate (6); An upper connecting plate (8) is arranged on the other side of the connecting plate (3) opposite to the lower connecting plate (7).

4. The assembled steel tube concrete column frame structure node according to claim 3, characterized in that: One end of the upper connecting plate (8) is arranged on the side surface of the column (1), and its length is shorter than that of the lower connecting plate (7).

5. The assembled steel tube concrete column frame structure node according to claim 4, characterized in that: The connecting plate (3) is located on the horizontal midline of the lower connecting plate (7) and the upper connecting plate (8), and is also located on the longitudinal midline of the fixing plate (6).

6. The assembled steel tube concrete column frame structure node according to claim 5, characterized in that: The bottom of the lower reinforcing plate (4) is provided with a rib plate (41) connected to the column (1) on one side; The lower reinforcement plate (4) is connected to the beam body (2) via fasteners.

7. The assembled steel tube concrete column frame structure node according to any one of claims 1 to 6, characterized in that: Also includes: An upper reinforcing plate (9) is provided on the side surface of the column (1) and is arranged parallel to the lower reinforcing plate (4); The upper reinforcing plate (9) is connected to the side plate (5).

8. The assembled steel tube concrete column frame structure node according to claim 7, characterized in that: The distance between the upper reinforcing plate (9) and the column (1) is smaller than the distance between the lower reinforcing plate (4) and the column (1).

9. The assembled steel tube concrete column frame structure node according to claim 8, characterized in that: The upper reinforcing plates (9) are provided with a plurality of pieces, which are distributed at intervals in the height direction of the side plates (5).

Images