Concrete filled steel tubular column joint structure

Abstract

The invention relates to a concrete filled steel tubular column joint structure which comprises at least two column bodies and a connecting assembly connected between every two adjacent column bodies, and each connecting assembly comprises a connecting body and a reinforcing plate; the connecting main body comprises two oppositely arranged first connecting plates and a second connecting plate connected between the two first connecting plates, and the two first connecting plates are respectively connected with the end parts of the two column bodies; the reinforcing plate, the second connecting plate and the two first connecting plates are connected and define a containing cavity, and at least one first connecting plate is provided with a through hole communicating with the containing cavity. On the basis of the scheme, the structural strength of the connecting assembly can be enhanced through the reinforcing plate; and based on the containing cavities formed by the reinforcing plates, the concrete can be filled into the containing cavities through the corresponding through holes, and the concrete can serve as a stress structure after being cured, so that the concrete in the containing cavities can further enhance the structural strength of the connecting assembly.

Description

Technical Field

[0001] This application relates to the field of steel-concrete composite technology, and in particular to a steel-concrete composite column joint structure. Background Technology

[0002] Currently, concrete-filled steel tubular (CFST) structures are widely used in the construction industry due to their advantages such as high load-bearing capacity, good plasticity and toughness, and excellent seismic performance. Furthermore, they can be constructed into irregular shapes to meet diverse building requirements. In CFST structures, the main connection between components is achieved through joint structures. For example, joint structures are installed on CFST columns to connect corresponding steel beams, thereby forming a complete frame structure and a structural load-bearing system.

[0003] Taking concrete-filled steel tubular columns as an example, one current method is to form a node structure by embedding connecting members into the concrete-filled steel tubular column. For example, the column body is divided into segments, and the connecting members are placed between the segments to achieve embedding. In this method, the connecting members are prone to insufficient strength, which can affect the structural strength of the concrete-filled steel tubular column. Summary of the Invention

[0004] Therefore, it is necessary to provide a steel-concrete composite column joint structure to solve the problem of insufficient strength of existing joint structures and even the overall steel-concrete composite column structure.

[0005] A steel-concrete composite column joint structure includes at least two columns and a connecting assembly connecting two adjacent columns. The connecting assembly includes a connecting body and a reinforcing plate. The connecting body has an I-shaped cross-section and includes two opposing first connecting plates and a second connecting plate connecting the two first connecting plates. The two first connecting plates are respectively connected to the ends of the two columns. The reinforcing plate is located on the side of the second connecting plate and between the two first connecting plates. The edge of the reinforcing plate is connected to the second connecting plate and the two first connecting plates respectively and forms a receiving cavity. At least one of the first connecting plates has a through hole communicating with the receiving cavity.

[0006] In the aforementioned steel-concrete composite column joint structure, the reinforcing plate first enhances the structural strength of the connecting components. Furthermore, based on the receiving cavity formed by the reinforcing plate within the connecting components, during the casting of the column, concrete can fill the receiving cavity through corresponding through holes. After curing, the concrete can act as a load-bearing structure, thereby further strengthening the structural strength of the connecting components. Therefore, the joint structure of this application can ensure the overall structural strength of the steel-concrete composite column by strengthening the structural strength of the connecting components.

[0007] In some embodiments, each of the two first connecting plates has at least one through hole, and the through hole on one of the first connecting plates is a first through hole, and the through hole on the other first connecting plate is a second through hole; wherein, at least a portion of the first through hole and at least a portion of the second through hole correspond to each other in the axial direction of the column.

[0008] In this way, based on the first and second through holes that correspond to each other in the axial direction of the column, when pouring concrete, some of the concrete can flow between the first and second through holes without staying in the cavity. This can reduce the obstruction of the cavity to the flow of concrete and make it easier for the concrete to quickly fill the column and the cavity.

[0009] In some embodiments, the number of first through holes is greater than the number of second through holes, and each second through hole corresponds to a first through hole in the axial direction of the column; the connecting assembly also includes a connecting pipe located in the receiving cavity, with both ends of the connecting pipe connected to two first connecting plates respectively, and the pipe openings at both ends of the connecting pipe communicating with the corresponding first through holes and second through holes respectively.

[0010] In this way, firstly, the structural strength of the local area where the through holes are located on the two first connecting plates can be compensated, thereby strengthening the structural strength of the connecting components; secondly, a dedicated channel can be established for the flow of concrete between the two columns, avoiding the influence of the receiving cavity on the concrete flow and improving the concrete pouring efficiency; finally, it can isolate the concrete entering the receiving cavity from one column and the concrete entering the other column, so that the concrete in the two parts can flow independently without interfering with each other, thereby improving the concrete pouring efficiency and pouring quality.

[0011] In some embodiments, at least one of the first connecting plates has a notch on its edge, the notch extending through the first connecting plate along its thickness direction, and the reinforcing plate has a protrusion extending into the notch, the protrusion height of which is less than or equal to the thickness of the first connecting plate.

[0012] In this way, due to the presence of the notch and the protrusion, the notch provides a connection space for the end of the protrusion to connect to the column, and the protrusion can be connected to the end of the column, which can improve the reliability of the connection between the column and the connecting component.

[0013] In some embodiments, the notch forms an opening area at the edge of the first connecting plate, and a protrusion extending into the notch closes the opening area to form a through hole.

[0014] In this way, the notch and the through hole are actually the same structure, serving both to connect the protrusion to the column and to connect the column tube to the receiving cavity. By using one structure to achieve two functions, the hole structure on the first connecting plate can be simplified.

[0015] In some embodiments, the reinforcing plate includes a first plate and a second plate, the first plate and the second connecting plate being disposed opposite to each other, and the second plate being connected between the first plate and the second connecting plate.

[0016] In some embodiments, the second connecting plate is provided with reinforcing plates on both sides in the thickness direction, and in the thickness direction of the second connecting plate, the distance between the two first plates of the two reinforcing plates and the second connecting plate is the same.

[0017] In this way, the positions of the two first plates are symmetrical about the second connecting plate, which can ensure the balance of structural strength of the connecting assembly on both sides of the thickness direction of the second connecting plate.

[0018] In some embodiments, in the thickness direction of the second connecting plate, the first plate has an outer surface facing away from the second connecting plate, and the outer surface of the first plate is flush with the edge of at least one of the first connecting plates.

[0019] This maximizes the width of the receiving cavity in the thickness direction of the second connecting plate, thereby maximizing the volume of the receiving cavity, which can hold more concrete and improve the structural strength of the connecting components and even the entire steel-concrete composite column.

[0020] In some embodiments, the column includes a column tube connected to a first connecting plate, and the internal space of the column tube communicates with a through hole on the first connecting plate.

[0021] In some embodiments, a portion of the second connecting plate is located outside the receiving cavity, and a transition hole is provided on the portion of the second connecting plate outside the receiving cavity; the steel-concrete composite column joint structure also includes a crossbeam, the end of which is provided with a transition component, which is connected to the transition hole. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the node structure in some embodiments of this application.

[0023] Figure 2 for Figure 1 An exploded view of the node structure shown.

[0024] Figure 3 This is a partial cross-sectional view of the node structure in some embodiments of this application.

[0025] Figure 4 This is a partial cross-sectional view of the node structure in some other embodiments of this application.

[0026] Figure 5 This is an exploded view of the connection components in some embodiments of this application.

[0027] Figure 6 This is a partial cross-sectional view of the connection components in some embodiments of this application.

[0028] Figure 7 This is a top view of the connection body in some embodiments of this application.

[0029] Figure 8 for Figure 7 The diagram shows a possible connection between the main body and the reinforcing plate.

[0030] Figure 9 for Figure 8 The diagram shows the connection between the connecting components and the column.

[0031] Figure 10 for Figure 7 The diagram shows another possible connection between the connecting body and the reinforcing plate.

[0032] Figure 11 This is a schematic diagram of the node structure in some other embodiments of this application.

[0033] Figure 12 This is a schematic diagram of the node structure in some other embodiments of this application.

[0034] 1. Column; 11. Column tube; 2. Connecting assembly; 21. Connecting body; 211. First connecting plate; 212. Second connecting plate; 22. Reinforcing plate; 221. First plate; 222. Second plate; 223. Protrusion; 23. Receiving cavity; 24. Through hole; 241. First through hole; 242. Second through hole; 25. Adapter hole; 26. Connecting tube; 27. Notch; 3. Crossbeam; 4. Adapter assembly; 41. Adapter plate; 42. Bolt. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] In some embodiments, please refer to Figures 1 to 3 This application provides a steel-concrete composite column joint structure, which includes a column 1 and a connecting component 2. The number of columns 1 is at least two, and the connecting component 2 is disposed between two adjacent columns 1 and connects the two columns 1, thereby forming a complete steel-concrete composite column with the column 1 and the connecting component 2. The connecting component 2 includes a connecting body 21 and a reinforcing plate 22. The connecting body 21 mainly serves as a connector, and the reinforcing plate 22 mainly serves as a structural reinforcement.

[0042] The connecting body 21 has an I-shaped cross-section; for example, the connecting body 21 can be made directly from an I-beam. The connecting body 21 consists of two first connecting plates 211 and one second connecting plate 212. The two first connecting plates 211 are arranged opposite to each other, and the second connecting plate 212 is connected between the two first connecting plates 211. The two first connecting plates 211 are respectively connected to the ends of the two columns 1 (e.g., by welding).

[0043] A reinforcing plate 22 is disposed on the connecting body 21, specifically located on the side of the second connecting plate 212 and between the two first connecting plates 211, i.e., the reinforcing plate 22 is located within the space enclosed by the second connecting plate 212 and the two first connecting plates 211. The edges of the reinforcing plate 22 are connected to the second connecting plate 212 and the two first connecting plates 211 respectively, thereby forming a cavity, i.e., a receiving cavity 23, together with the reinforcing plate 22, the second connecting plate 212, and the two first connecting plates 211. Based on the receiving cavity 23, at least one of the two first connecting plates 211 has a through hole 24, which communicates with the receiving cavity 23.

[0044] In this way, the reinforcing plate 22 can first strengthen the structural strength of the connecting body 21, thereby improving the structural strength of the connecting component 2. Furthermore, during the casting of the aforementioned column 1, concrete can enter the receiving cavity 23 through the corresponding through holes 24, filling the receiving cavity 23. After curing, the concrete can serve as a load-bearing structure, further strengthening the structural strength of the connecting component 2. Therefore, the node structure of this application can ensure the overall structural strength of the steel-concrete composite column by strengthening the structural strength of the connecting component 2.

[0045] In some examples, column 1 includes column tube 11, which can be made of steel pipe, specifically round or square pipe, or an irregularly shaped pipe made of round or square pipe spliced ​​together. Column tube 11 can be filled with concrete to form column 1.

[0046] The end of the column tube 11 is connected to the first connecting plate 211. Since at least one of the first connecting plates 211 is provided with a through hole 24, the internal space of the column tube 11 connected to the first connecting plate 211 with the through hole 24 is in communication with the corresponding through hole 24. When the corresponding column 1 is poured, the concrete in the column tube 11 can enter the receiving cavity 23 of the connecting assembly 2 through the through hole 24.

[0047] Furthermore, if both first connecting plates 211 are provided with through holes 24, the two column tubes 11 of the two columns 1 are connected through the through holes 24 on the two first connecting plates 211 and the receiving cavity 23. At this time, the concrete structure of the two columns 1 and the concrete structure in the receiving cavity 23 can be cast integrally, which facilitates construction.

[0048] Specifically, during construction, the connecting component 2 can be connected to the two column tubes 11 first, for example, by welding them sequentially. Then, concrete is poured into one end of one of the column tubes 11, allowing the concrete to completely fill the internal space of both column tubes 11 and the receiving cavity 23 of the connecting component 2, achieving integral casting and facilitating construction. Furthermore, the concrete structure within the two column tubes 11 and the receiving cavity 23 forms a single unit, which can further improve the structural strength and reliability of the concrete-filled steel tube column.

[0049] In some embodiments, please refer to Figure 3 Each of the two first connecting plates 211 has at least one through hole 24. One of the through holes 24 on the first connecting plate 211 is a first through hole 241, and the other is a second through hole 242. At least a portion of the first through holes 241 and at least a portion of the second through holes 242 correspond to each other axially in the column 1. That is, for each first through hole 241, at least a portion of the first through holes 241 correspond to a corresponding second through hole 242 axially in the column 1; and for each second through hole 242, at least a portion of the second through holes 242 correspond to a corresponding first through hole 241 axially in the column 1.

[0050] In this way, based on the first through hole 241 and the second through hole 242 that correspond to each other in the axial direction of the column 1, it is more conducive to the flow of concrete through the receiving cavity 23 between two adjacent column tubes 11, reducing the obstruction of the receiving cavity 23 to the flow of concrete, and making it more conducive to the rapid filling of the column tube 11 and the receiving cavity 23 by concrete.

[0051] Specifically, taking the pouring of concrete from the top column 1 of the steel-concrete composite column as an example, if there are at least a number of first through holes 241 and at least a number of second through holes 242 corresponding to each other in the axial direction of the column 1, when the concrete enters the lower column 11 from the upper column 11, some of the concrete can go directly through the first through hole 241 to the corresponding second through hole 242 without staying in the receiving cavity 23. This is conducive to the concrete flowing between two adjacent column 11 through the receiving cavity 23.

[0052] Conversely, if all the first through holes 241 and all the second through holes 242 do not correspond in the axial direction of the column 1, then when the concrete enters the lower column pipe 11 from the upper column pipe 11, the concrete cannot reach the second through hole 242 from the first through hole 241 without stopping in the receiving cavity 23. Instead, it will first enter the receiving cavity 23 and stop before flowing to the second through hole 242, thus slowing down the flow of concrete and affecting the concrete pouring efficiency.

[0053] In some examples, please refer to Figure 3 and Figure 4 The number of first through holes 241 is greater than the number of second through holes 242. A portion of the first through holes 241 correspond to the second through holes 242 in the axial direction of the column 1, and the number of these first through holes 241 is the same as that of the second through holes 242; another portion of the first through holes 241 do not correspond to the second through holes 242 in the axial direction of the column 1. From the perspective of the second through holes 242, each second through hole 242 corresponds to one first through hole 241 in the axial direction of the column 1.

[0054] At this time, the connecting assembly 2 also includes a connecting pipe 26 disposed within the receiving cavity 23. Both ends of the connecting pipe 26 are connected to two first connecting plates 211, and the connecting pipe 26 is positioned between corresponding first through holes 241 and second through holes 242. Corresponding first through holes 241 and second through holes 242 in the axial direction of the column 1 are connected through the connecting pipe 26, meaning the opening of the connecting pipe 26 corresponds to the corresponding first through hole 241 and second through hole 242. At this time, the first through hole 241, which does not correspond to the second through hole 242 in the axial direction of the column 1, is not connected to the receiving cavity 23, and concrete is injected through the column pipe 11 directly connected to the first through hole 241.

[0055] Based on this, the connecting pipe 26 serves at least the following three purposes:

[0056] Firstly, the structural strength of the connecting component 2 is enhanced. The opening structure (i.e., through hole 24) on the first connecting plate 211 actually affects the structural strength of the first connecting plate 211; that is, the through hole 24 reduces the local structural strength of the first connecting plate 211. At this time, the connecting pipe 26 provided between the first through hole 241 and the second through hole 242 can compensate for the structural strength of the local location where the through holes 24 are located on the two first connecting plates 211.

[0057] Secondly, it further improves the efficiency of concrete pouring. The connecting pipe 26 set between the first through hole 241 and the second through hole 242 establishes a dedicated channel for the flow of concrete between the two cylindrical pipes 11. The concrete can flow directly between the two cylindrical pipes 11 through the connecting pipe 26 without entering the receiving cavity 23, thus avoiding the influence of the receiving cavity 23 on the flow of concrete and improving the efficiency of concrete pouring.

[0058] Thirdly, while improving the efficiency of concrete pouring, further improvements should be made to the quality of pouring, which should be reflected in at least the following two aspects:

[0059] (1) When pouring concrete, the concrete entering the connecting pipe 26 through the first through hole 241 can only enter the column pipe 11 directly connected to the second through hole 242. The concrete that does not enter the connecting pipe 26 can only enter the receiving cavity 23 through the first through hole 241, and the concrete entering the receiving cavity 23 will not enter the column pipe 11 directly connected to the second through hole 242. That is, based on the connecting pipe 26, it can isolate the concrete entering the receiving cavity 23 from one column pipe 11 and the concrete entering the other column pipe 11, so that the concrete in the two parts flows independently and does not interfere with each other, thereby improving the concrete pouring efficiency and pouring quality.

[0060] (2) The connecting pipe 26 connects the upper and lower columns 1, that is, the column pipe 11 connecting the upper and lower columns 1. In addition to serving as a concrete pouring channel, the connecting pipe 6 can also serve as an exhaust channel, especially for the column 1 located below the connecting component 2. For example, when concrete enters the lower column pipe 11 from the connecting pipe 26, the air in the lower column pipe 11 can be discharged from the connecting pipe 26 to the upper column pipe 11, and then further discharged to the outside, avoiding air remaining in the column pipe 11, thereby improving the concrete pouring efficiency and pouring quality. If air remains in the column pipe 11, it will cause problems such as air resistance and voids in the concrete.

[0061] At this point, since there can be multiple connecting pipes 26, some connecting pipes 26 can serve as the main concrete pouring channel, while other connecting pipes 26 can serve as the main venting channel.

[0062] Furthermore, since the connecting pipe 26 can serve as an exhaust channel, at least a portion of the connecting pipe 26 can be configured as a tapered pipe. The smaller diameter end of the tapered pipe corresponds to the upper column 1, i.e., the first through hole 241; the larger diameter end of the tapered pipe corresponds to the lower column 1, i.e., the second through hole 242. In this case, the diameter of the second through hole 242 is larger than that of the first through hole 241.

[0063] In this way, during concrete pouring, the concrete enters the connecting pipe 26 from the smaller diameter end and then flows through the larger diameter end into the lower column pipe 11. Air inside the lower column pipe 11 enters the connecting pipe 26 from the larger diameter end and then flows through the smaller diameter end into the upper column pipe 11 before being discharged. Because the larger diameter end of the connecting pipe 26 allows air to enter, it facilitates airflow during concrete pouring. For example, when concrete and air pass through the same connecting pipe 26, the obstruction of airflow by the concrete is reduced.

[0064] In some embodiments, please refer to Figure 5 The reinforcing plate 22 includes a first plate body 221 and a second plate body 222. The first plate body 221 and the second plate body 222 are respectively connected to two first connecting plates 211 on both sides of the column 1 in the axial direction, so as to form a support structure between the two first connecting plates 211.

[0065] The first plate 221 and the second connecting plate 212 are arranged opposite to each other and spaced apart. For example, the first plate 221 can be parallel to the second connecting plate 212 and spaced apart. One side of the second plate 222 is connected to the end edge of the first plate 221, and the other side is connected to the surface of the second connecting plate 212. That is, the second plate 222 is connected between the first plate 221 and the second connecting plate 212 to close the space between the first plate 221 and the second connecting plate 212, forming a receiving cavity 23. At this time, both ends of the first plate 221 are connected to the second plate 222. The second plate 222 also establishes an indirect connection between the first plate 221 and the second connecting plate 212, enhancing the reliability of the overall structure.

[0066] It should be noted that the first plate 221 and the second plate 222 mentioned above can be integrally formed structures. For example, a complete sheet of material can be bent to form the first plate 221 and the second plate 222. Of course, the first plate 221 and the second plate 222 mentioned above can also be independent structures, which can be connected into one piece by appropriate connection processes (such as welding).

[0067] In other embodiments, please refer to Figure 5 and Figure 6The connecting component 2 may include at least two reinforcing plates 22. That is, for the second connecting plate 212, reinforcing plates 22 are provided on both sides in the thickness direction, thereby forming receiving cavities 23 on both sides of the second connecting plate 212. The first connecting plate 211 is provided with through holes 24 that communicate with the two receiving cavities 23 respectively.

[0068] In this way, the two reinforcing plates 22 on both sides of the second connecting plate 212 can strengthen the structure of the connecting component 2 on both sides of the second connecting plate 212, ensuring the uniformity of the structural strength of the connecting component 2.

[0069] Furthermore, since the reinforcing plate 22 includes a first plate body 221 and a second plate body 222, and the distance from the first plate body 221 of the two reinforcing plates 22 to the second connecting plate 212 is the same, that is, the positions of the two first plate bodies 221 are symmetrical about the second connecting plate 212, which can ensure the balance of structural strength of the connecting component 2 on both sides of the second connecting plate 212 in the thickness direction.

[0070] In some embodiments, please refer to Figure 5 and Figure 6 The reinforcing plate 22 includes a first plate body 221 and a second plate body 222. In the thickness direction of the second connecting plate 212, the first plate body 221 is flush with the outer surface of the second connecting plate 212 and at least one of the edges of the first connecting plate 211.

[0071] Furthermore, if the distances from the edges of the two first connecting plates 211 to the second connecting plate 212 are different in the thickness direction of the second connecting plate 212, then the outer surface of the first plate body 221 and the edge of the first connecting plate 211 whose edge is closer to the second connecting plate 212 are flush.

[0072] In this way, the width of the receiving cavity 23 in the thickness direction of the second connecting plate 212 can be maximized, thereby maximizing the volume of the receiving cavity 23, which can accommodate more concrete and improve the strengthening effect on the structural strength of the connecting component 2 and even the entire steel tube concrete column.

[0073] In some embodiments, please refer to Figures 7 to 9 At least one of the first connecting plates 211 has a notch 27 on its edge. The notch 27 penetrates the first connecting plate 211 along its thickness direction. The edge where the notch 27 is located is the edge of the first connecting plate 211 on the side away from the second connecting plate 212 in the thickness direction of the second connecting plate 212.

[0074] Furthermore, the notch 27 is located at the connection position of the reinforcing plate 22 on the first connecting plate 211. The edge of the reinforcing plate 22 connected to the first connecting plate 211 has a protrusion 223 extending into the notch 27, and the protrusion height of the protrusion 223 is not greater than the thickness of the first connecting plate 211. That is, in the thickness direction of the first connecting plate 211, the protrusion 223 is completely contained in the notch 27 and does not extend to the surface of the first connecting plate 211 facing the column 1.

[0075] Based on this, when connecting the column 1 to the connecting assembly 2, that is, when the column tube 11 of the column 1 is connected to the connecting body 21 of the connecting assembly 2, the column tube 11 is connected to the first connecting plate 211 of the connecting body 21, that is, the surface of the first connecting plate 211 facing the column tube 11 is connected to the end of the column tube 11, for example, by welding. At this time, due to the presence of the notch 27 and the protrusion 223, the notch 27 provides a connection space for the protrusion 223 to connect to the end of the column tube 11. At this time, the protrusion 223 can be welded to the end of the column tube 11, which can improve the reliability of the connection between the column 1 and the connecting assembly 2.

[0076] Specifically, without the aforementioned notch 27 and protrusion 223, the connection between the column 1 and the connecting component 2 relies solely on the connection between the column tube 11 and the first connecting plate 211. If a reliability problem occurs in the connection between the column tube 11 and the first connecting plate 211, the connection between the column 1 and the connecting component 2 will inevitably be substantially affected, resulting in a low tolerance for reliability issues.

[0077] Based on the aforementioned notch 27 and protrusion 223, the protrusion 223 can connect to the column tube 11. That is, in addition to the first connecting plate 211, the column tube 11 also establishes a connection with the reinforcing plate 22. At this time, the connection between the column 1 and the connecting assembly 2 relies on the connection between the column tube 11 and the first connecting plate 211, as well as the connection between the column tube 11 and the reinforcing plate 22. Even if there is a reliability problem with the connection between the column tube 11 and the first connecting plate 211, since the column tube 11 also establishes a connection with the reinforcing plate 22, the column 1 and the connecting assembly 2 are not necessarily substantially affected, which can improve the fault tolerance rate for reliability problems.

[0078] It should be noted that, since the protrusion 223 needs to be connected to the column 1 (specifically the column tube 11 of the column 1), the position of the protrusion 223 on the surface of the first connecting plate 211 needs to be within the projection area of ​​the end of the column tube 11 on the surface of the first connecting plate 211.

[0079] In some examples, please refer to Figure 10Since the notch 27 is located at the edge of the first connecting plate 211, the notch 27 forms an opening area at the edge of the first connecting plate 211. At this time, the protrusion 223 extending into the notch 27 fills and closes the opening area, so that the notch 27 is surrounded into a hole structure, that is, the protrusion 223 surrounds the notch 27 into the aforementioned through hole 24.

[0080] At this point, the notch 27 and the through hole 24 are actually the same structure, serving both to connect the protrusion 223 to the column tube 11 of the column body 1 and to connect the column tube 11 to the receiving cavity 23. This allows one structure to achieve two functions, simplifying the hole structure on the first connecting plate 211.

[0081] Furthermore, the notch 27 can be configured to extend along the edge of the first connecting plate 211, that is, the notch 27 can be configured as a strip structure, which, together with the corresponding protrusion 223, can form a strip-shaped through hole 24. At this time, the protrusion 223 is also configured to extend along the edge of the first connecting plate 211, thereby increasing its surface area, for example, increasing the surface area of ​​the protrusion 223 facing the column 1, thereby increasing the connection area between the protrusion 223 and the column 1 and improving the reliability of the connection.

[0082] For example, the different inner wall surfaces of the notch 27 can be further made to use a curved transition, that is, a chamfer structure is provided at the corner of the inner wall surface of the notch 27 to eliminate the corner and avoid stress concentration at the corner.

[0083] Furthermore, based on the aforementioned connecting pipe 26, a portion of the first through hole 241 and all of the second through holes 242 correspond to the connecting pipe 26. Due to the presence of the connecting pipe 26, it is inconvenient to form this portion of the first through hole 241 and the second through hole 242 using the notch 27 and the protrusion 223 of the reinforcing plate 22. This portion of the first through hole 241 and the second through hole 242 can be formed directly by drilling, for example, by using a drilled round hole. Therefore, the notch 27 is used to cooperate with the protrusion 223 of the reinforcing plate 22 to form the remaining portion of the first through hole 241, that is, the portion of the first through hole 241 that does not correspond to the second through hole 242 in the axial direction of the column 1, which is surrounded by the notch 27 and the protrusion 223 of the reinforcing plate 22.

[0084] In some embodiments, please refer to Figure 1 and Figure 2 A portion of the second connecting plate 212 is located outside the receiving cavity 23. That is, the second connecting plate 212 includes both the area that forms the receiving cavity 23 and the area located outside the receiving cavity 23. For example, in this embodiment, the end of the second connecting plate 212 is located outside the receiving cavity 23. Therefore, the area outside the receiving cavity 23 can be used to connect components with connection requirements, jointly forming a node structure or even a complete steel-concrete composite frame structure.

[0085] For example, the steel-concrete composite column joint structure may also include a crossbeam 3, which may be an I-beam, and the end of the crossbeam 3 is connected to the area of ​​the second connecting plate 212 outside the receiving cavity 23.

[0086] Furthermore, the second connecting plate 212 is provided with a transition hole 25 in the area outside the receiving cavity 23, and the end of the crossbeam 3 is provided with a transition component 4. The transition component 4 can be connected to the transition hole 25, thereby realizing the connection between the crossbeam 3 and the second connecting plate 212, and thus realizing the connection between the crossbeam 3 and the connecting component 2.

[0087] In some examples, the aforementioned adapter assembly 4 may include an adapter plate 41 and a plurality of bolts 42 disposed on the adapter plate 41. The end of the crossbeam 3 is fitted with a portion of the bolts 42 on the adapter plate 41 through an opening, and another portion of the bolts 42 on the adapter plate 41 may fit with the adapter holes 25 on the edge of the second connecting plate 212.

[0088] In some implementations, please refer to Figure 1 , Figure 11 and Figure 12 The shape of the radial cross-section of the column 1 (i.e., the cross-section perpendicular to the axis of the column 1) is the same as the shape of the first connecting plate 211. For example, the shape of the radial cross-section of the column 1 and the shape of the first connecting plate 211 can both be regular shapes such as circles or rectangles. Of course, the shape of the radial cross-section of the column 1 and the shape of the first connecting plate 211 can also both be irregular shapes.

[0089] Specifically, for irregular shapes, the radial cross-sectional shape of the column 1 and the shape of the first connecting plate 211 can be L-shaped, T-shaped, or cross-shaped, etc. Furthermore, the aforementioned irregular shapes can be formed by splicing together regular shapes. For example, based on the column 1 including a column tube 11, multiple rectangular tubes can be spliced ​​together to form the aforementioned L-shaped, T-shaped, and cross-shaped irregular column tubes 11. Correspondingly, the first connecting plate 211 and even the connecting assembly 2 can also be formed by splicing together corresponding components. For example, multiple I-beams can be spliced ​​together to form the connecting body 21 in L-shaped, T-shaped, and cross-shaped shapes.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A steel-concrete composite column joint structure, characterized in that, It includes at least two columns and a connecting assembly connecting two adjacent columns, the connecting assembly including a connecting body and a reinforcing plate; The cross-section of the connecting body is I-shaped, which includes two opposing first connecting plates and a second connecting plate connected between the two first connecting plates. The two first connecting plates are respectively connected to the ends of the at least two columns. The reinforcing plate is located on the side of the second connecting plate and between the two first connecting plates. The edge of the reinforcing plate is connected to the second connecting plate and the two first connecting plates respectively and forms a receiving cavity. At least one of the first connecting plates has a through hole communicating with the receiving cavity.

2. The steel-concrete composite column joint structure according to claim 1, characterized in that, Each of the two first connecting plates is provided with at least one through hole, and the through hole on one of the first connecting plates is a first through hole, and the through hole on the other first connecting plate is a second through hole; Wherein, at least a portion of the first through hole and at least a portion of the second through hole correspond to each other in the axial direction of the column.

3. The steel-concrete composite column joint structure according to claim 2, characterized in that, The number of the first through holes is greater than the number of the second through holes, and each of the second through holes corresponds to one of the first through holes in the axial direction of the column. The connecting assembly further includes a connecting pipe located within the receiving cavity. Both ends of the connecting pipe are connected to the two first connecting plates, and the openings at both ends of the connecting pipe are respectively connected to the corresponding first through hole and second through hole.

4. The steel-concrete composite column joint structure according to any one of claims 1-3, characterized in that, At least one of the first connecting plates has a notch on its edge, the notch extending through the first connecting plate along its thickness direction, and the reinforcing plate has a protrusion extending into the notch, the protrusion height of which is less than or equal to the thickness of the first connecting plate.

5. The steel-concrete composite column joint structure according to claim 4, characterized in that, The notch forms an opening area at the edge of the first connecting plate, and the protrusion extending into the notch closes the opening area to form the through hole.

6. The steel-concrete composite column joint structure according to any one of claims 1-3, characterized in that, The reinforcing plate includes a first plate and a second plate, the first plate and the second connecting plate being disposed opposite to each other, and the second plate being connected between the first plate and the second connecting plate.

7. The steel-concrete composite column joint structure according to claim 6, characterized in that, The second connecting plate has reinforcing plates on both sides in the thickness direction, and in the thickness direction of the second connecting plate, the distance between the two first plates of the two reinforcing plates and the second connecting plate is the same.

8. The steel-concrete composite column joint structure according to claim 6, characterized in that, In the thickness direction of the second connecting plate, the first plate has an outer surface facing away from the second connecting plate, and the outer surface of the first plate is flush with the edge of at least one of the first connecting plates.

9. The steel-concrete composite column joint structure according to any one of claims 1-3, characterized in that, The column includes a column tube, which is connected to the first connecting plate, and the internal space of the column tube communicates with the through hole on the first connecting plate.

10. The steel-concrete composite column joint structure according to any one of claims 1-3, characterized in that, A portion of the second connecting plate is located outside the receiving cavity, and a transition hole is provided on the portion of the second connecting plate located outside the receiving cavity; The steel-concrete composite column joint structure also includes a crossbeam, the end of which is provided with a transition component, which is connected to the transition hole.

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