Beam-column connection and method of installing same

Abstract

The application relates to the technical field of fabricated building, and discloses a beam-column connecting piece and a mounting method thereof. The beam-column connecting piece comprises an upper cover plate, a lower cover plate, a vertical plate, a core column and mounting holes. The lower cover plate is arranged opposite to the upper cover plate. The vertical plate is connected between the upper cover plate and the lower cover plate. The upper cover plate, the lower cover plate and the vertical plate form a plurality of placement cavities used for placing one end of a cross beam. The placement cavities are provided with push-in openings. The opening direction of the push-in openings is perpendicular to the length direction of the cross beam. The core column is vertically arranged between the upper cover plate and the lower cover plate. The upper cover plate and / or the lower cover plate is provided with an avoiding hole corresponding to the core column. The core column, the upper cover plate and the lower cover plate are all provided with the mounting holes. The core column, the upper cover plate and the lower cover plate are connected with a vertical column or the cross beam through the mounting holes. The provided beam-column connecting piece does not need to temporarily fix the connecting position of the beam column during installation. The connecting operation of the beam column is simple. The construction efficiency of the beam-column connection can be effectively improved. The rapid erection of a frame structure is realized.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a beam-column connector and its installation method. Background Technology

[0002] The frame structure is mainly composed of beams and columns. On-site frame structure construction involves connecting pre-fabricated beams and columns. In related technologies, on-site beam-column connections typically employ welding, bolting, or bolt-welding. Before construction, all three connection methods require preliminary fixing of the beam-column connection positions to form a pre-connection. Then, the beam-column connection is completed by welding or installing high-strength bolts. For example, after installing the columns, temporary supports for the beams or continuous hoisting operations using cranes are needed to form a pre-connection, which facilitates subsequent welding or bolt installation. Welding and bolting require specific on-site welding conditions, and the welding process is cumbersome to ensure the connection strength of the beams and columns, making it difficult to improve on-site construction efficiency. Bolting often requires a large number of high-strength bolts to ensure the connection strength of the beams and columns, and the on-site connection construction time is relatively long. Summary of the Invention

[0003] The purpose of this invention is to address the problem that the beam-column connection methods in related technologies require temporary fixing of the connection positions beforehand, resulting in low construction efficiency. This invention provides a beam-column connector and its installation method, which eliminates the need for temporary fixing of the beam-column connection positions during installation, simplifies the beam-column connection operation, effectively improves the construction efficiency of beam-column connections, and enables rapid construction of frame structures.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A first aspect provides a beam-column connector, comprising: an upper cover plate, a lower cover plate, the lower cover plate being disposed opposite to the upper cover plate; a vertical plate, the vertical plate being connected between the upper cover plate and the lower cover plate, the upper cover plate, the lower cover plate, and the vertical plate forming a plurality of placement cavities, the placement cavities being used to place one end of a crossbeam, the placement cavities being provided with a push-in port, the opening direction of the push-in port being perpendicular to the length direction of the crossbeam; and a core column, the core column being vertically disposed between the upper cover plate and the lower cover plate, the upper cover plate and / or the lower cover plate being provided with a clearance hole corresponding to the core column; wherein, the core column, the upper cover plate, and the lower cover plate are all provided with mounting holes, and the core column, the upper cover plate, and the lower cover plate are respectively connected to the column or the crossbeam through the mounting holes.

[0006] This invention provides a beam-column connector that can be prefabricated in a factory and directly used as a node for beam-column connection during on-site construction. Therefore, it eliminates the need for temporary fixing of the beam and column to form the required connection node. After the beam-column connector is installed on the column, the crossbeam can be directly pushed into the placement cavity for connection and installation. This eliminates the need for temporary support of the crossbeam or continuous hoisting with a crane, thus accelerating connection efficiency and reducing the time spent using crane resources. Furthermore, the upper cover plate, lower cover plate, upright plate, and core column can effectively transmit and bear the forces of the crossbeam and the column, ensuring the load-bearing performance of the beam-column connector. Compared to bolted structures formed by a single connecting plate and high-strength bolts, this significantly reduces the use of fixing bolts, further improving construction efficiency and enabling rapid erection of frame structures.

[0007] In some alternative embodiments, at least two of the placement cavities are arranged opposite each other, and the opening directions of the push-in ports corresponding to the oppositely arranged placement cavities are the same.

[0008] In some alternative embodiments, the upper cover plate and the lower cover plate are cross-shaped plates, T-shaped plates, or straight plates.

[0009] In some alternative embodiments, the upper cover plate and the lower cover plate are L-shaped plates, and the push-in ports of two adjacent placement cavities are interconnected.

[0010] In some alternative embodiments, the upper cover plate and the lower cover plate are fixed to the upright plate by welding, and the welds between the upper cover plate and the lower cover plate and the upright plate are all located on the outside of the placement cavity.

[0011] In some alternative embodiments, the clearance hole is located at the center of the upper cover plate and / or the lower cover plate.

[0012] In some alternative embodiments, the upper cover plate and the lower cover plate are respectively provided with armhole plates at their corners.

[0013] In some alternative embodiments, the core column is fixedly connected to the upright plate, and a pad is provided between the core column and the upright plate.

[0014] In some alternative embodiments, the core post has a segment extending out of the upper cover plate and / or the lower cover plate, the segment having mounting holes, and the column sleeved on the outside of the core post.

[0015] In some optional embodiments, the beam-column connector further includes: a base plate disposed at the bottom end of the segment, the area of ​​the base plate being larger than the bottom area of ​​the core column, and a plurality of vertical reinforcing plates being provided at the connection between the base plate and the core column.

[0016] The second aspect provides a method for installing beam-column connectors, using the beam-column connectors described above, including the following steps:

[0017] Prefabrication steps: Prefabricate beam-column connectors according to the beams, columns, and the frame structure formed by the beams and columns;

[0018] Column installation steps: Connect and fix the column to the core column of the beam-column connector;

[0019] Crossbeam installation steps: Push the end of the crossbeam into the placement cavity through the push-in port, and connect and fix the crossbeam to the upper cover plate and the lower cover plate.

[0020] The installation method for the beam-column connectors provided in the second aspect has roughly the same beneficial effects as the beam-column connectors provided in the first aspect, and will not be repeated here. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the beam-column connector using a cross-shaped plate as described in the embodiment;

[0023] Figure 2 yes Figure 1 A cross-sectional diagram;

[0024] Figure 3 This is a schematic diagram of the beam-column connector using a T-shaped plate as described in the embodiment;

[0025] Figure 4 yes Figure 3 A cross-sectional diagram;

[0026] Figure 5 This is a schematic diagram of the structure of the beam-column connector using an L-shaped plate as described in the embodiment;

[0027] Figure 6 yes Figure 5 A cross-sectional diagram;

[0028] Figure 7 This is a structural schematic diagram of the beam-column connector used at the top of the frame structure as described in the embodiment;

[0029] Figure 8 yes Figure 7 A cross-sectional diagram;

[0030] Figure 9 This is a structural schematic diagram of the beam-column connector used at the bottom of the frame structure as described in the embodiment;

[0031] Figure 10 This is a schematic diagram of the installation of the column described in the embodiment;

[0032] Figure 11 This is a schematic diagram of the installation of the crossbeam described in the embodiment;

[0033] The markings in the diagram are: 100-beam-column connector, 110-upper cover plate, 120-lower cover plate, 130-vertical plate, 140-core column, 150-haunch plate, 160-pad plate, 170-bottom plate, 180-reinforcing plate, 101-placement cavity, 102-push-in entrance, 103-avoidance hole, 104-mounting hole, 200-crossbeam, 300-vertical column. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0038] With the continuous advancement of green and low-carbon policies, reusability has become one of the basic performance requirements to be considered in the design of steel frame structures. Steel frame structures mainly consist of beams and columns. Beams and columns are generally fabricated in factories, ensuring quality control and high efficiency. The connections between beams and columns are implemented on-site, and their reliability and construction efficiency directly determine whether the performance requirements for reusability can be met. In related technologies, beam-column connections in steel frame structures often employ welding or bolting. Both methods require temporary fixing of beams and columns during construction to form connection nodes before the actual connection is performed. Furthermore, the construction process is relatively cumbersome, resulting in low assembly efficiency for the frame structure. Furthermore, for welded connections, when multiple disassemblies and reassemblies are required, the weld seam needs to be chiseled or welded multiple times, making construction complex. Moreover, residual stress is generated during each welding, making it difficult to meet the requirements for multiple disassemblies and reassemblies. For bolted connections, when there are many bolts, the efficiency of disassembly and reassembly will be affected to a certain extent, and multiple disassemblies and reassemblies will affect the anti-slip performance of high-strength bolts. Therefore, while effectively ensuring the stress on beams and columns and the strength of beam-column connections, in order to improve the installation efficiency of the construction frame structure, facilitate the disassembly and reassembly of the frame structure, and thus make it easier to achieve the reusability of beams and columns and control construction costs, a beam-column connector and its installation method are provided.

[0039] This application is described below with reference to the accompanying drawings and specific embodiments:

[0040] Example

[0041] like Figures 1-9As shown, a beam-column connector 100 of the present invention includes: an upper cover plate 110, a lower cover plate 120, the lower cover plate 120 being disposed opposite to the upper cover plate 110; and a vertical plate 130 connected between the upper cover plate 110 and the lower cover plate 120. The upper cover plate 110, the lower cover plate 120, and the vertical plate 130 form a plurality of placement cavities 101. Each placement cavity 101 is used to place one end of a crossbeam 200. Each placement cavity 101 is provided with a push-in inlet 102, the opening direction of which is perpendicular to the direction of the crossbeam 200. The crossbeam 200 is perpendicular to the length direction; and a core column 140 is vertically arranged between the upper cover plate 110 and the lower cover plate 120, the upper cover plate 110 and / or the lower cover plate 120 are provided with clearance holes 103 corresponding to the core column 140; wherein, the core column 140, the upper cover plate 110 and the lower cover plate 120 are all provided with mounting holes 104, and the core column 140, the upper cover plate 110 and the lower cover plate 120 are respectively connected to the column 300 or the crossbeam 200 through the mounting holes 104.

[0042] A certain gap is formed between the upper cover plate 110 and the lower cover plate 120, which are set opposite to each other. The vertical plate 130 connects the upper cover plate 110 and the lower cover plate 120 to separate multiple placement cavities 101, which facilitates the placement of crossbeams 200 in different directions. When the crossbeams 200 are prefabricated, connection through holes are reserved at both ends. The upper cover plate 110 and the lower cover plate 120 also have mounting holes 104 reserved at appropriate positions in the placement cavities 101. After the crossbeams 200 are placed in the placement cavities 101, the connection through holes of the crossbeams 200 can be aligned with the reserved mounting holes 104. Then, one end of the crossbeams 200 can be directly connected and fixed in the placement cavities 101 by bolts.

[0043] In the construction of the frame structure, after the positions of two adjacent beam-column connectors 100 are fixed, the two beam-column connectors 100 need to be connected together by a crossbeam 200. The design of the opening direction of the push-in port 102 allows both ends of the crossbeam 200 to be pushed into the two placement cavities 101 simultaneously in the horizontal plane. Compared with the crossbeam 200 extending into the placement cavity 101 along the length of the crossbeam 200, this effectively improves the practicality of the beam-column connector 100, facilitates the sequential assembly of the column 300 and the crossbeam 200, and improves the ease of installation of the crossbeam 200.

[0044] The core post 140 is used to connect with the column 300. The core post 140 can be fitted onto the outside of the column 300, or the column 300 can be fitted onto the outside of the core post 140. When the column 300 is prefabricated, the connecting end of the column 300 also has a pre-drilled connection hole. The mounting hole 104 pre-drilled in the core post 140 can be matched and aligned with the connection through hole of the column 300, allowing the core post 140 and the column 300 to be bolted together after connection, ensuring connection strength and stability. Compared to... The column 300 is directly welded to the upper cover plate 110 or the lower cover plate 120. The core column 140 can effectively improve the horizontal force of the beam-column connector 100. The clearance hole 103 is for the core column 140 to extend out of the clearance hole 103 and connect with the column 300, or for the column 300 to extend into the clearance hole 103 and connect with the core column 140. Depending on the different positions of the beam-column connector 100 in the frame structure, the upper cover plate 110 and the lower cover plate 120 can selectively open clearance holes 103.

[0045] The beam-column connector 100 provided by this invention can be prefabricated in the factory and directly used as a node for beam-column connection during on-site construction. Therefore, there is no need to temporarily fix the beam and column in advance to form the required connection node. That is, after the beam-column connector 100 is installed on the column 300, the crossbeam 200 can be directly pushed into the placement cavity 101 for connection and installation. There is no need to temporarily support the crossbeam 200 or use a crane for a long time to assist in the installation, which can speed up the connection efficiency and reduce the time occupied by the crane. Moreover, the upper cover plate 110, lower cover plate 120, upright plate 130, and core column 140 can effectively transmit and bear the force of the crossbeam 200 and the upright column 300, ensuring the stress performance of the beam-column connector 100. Compared with the bolted structure formed by a single connecting plate and high-strength bolts, it can significantly reduce the use of fixing bolts, further improve construction efficiency, and realize the rapid construction of frame structure.

[0046] When a frame structure needs to be assembled and disassembled multiple times for reuse, if welding is used, disassembly requires multiple chiseling of welds or welding, which is complex and time-consuming. Moreover, residual stress is generated during each welding, making it difficult to meet the requirements of multiple disassembly and reuse. If bolted connection is used, disassembly requires turning a large number of high-strength bolts, resulting in low construction efficiency. Furthermore, multiple disassembly and reuse will adversely affect the anti-slip performance of the high-strength bolts. Therefore, the beam-column connector 100 of the present invention also facilitates the quick disassembly of the frame structure, and the assembly and disassembly construction causes less damage to the beam and column structure itself, greatly improving the reusability of each component, and is especially suitable for the cyclical use of steel frame structures.

[0047] In some alternative embodiments, at least two placement cavities 101 are arranged opposite each other, and the opening directions of the push-in ports 102 corresponding to the oppositely arranged placement cavities 101 are the same.

[0048] The arrangement of multiple placement cavities 101 relative to each other means that the multiple beams 200 placed in the relative placement cavities 101 are located in the same direction. That is, for two adjacent beams 200 in the same direction in the frame structure, when a beam-column connector 100 is selected as the connection node, there are two relative placement cavities 101 that can correspondingly place the two adjacent beams 200. For example, when a node in the frame structure needs to connect four mutually perpendicular beams 200, the beam-column connector 100 has four placement cavities 101, and the two relative placement cavities 101 are a group, with a total of two groups. Then, the push-in inlet 102 corresponding to each group of relative placement cavities 101 has the same opening direction. If the beam-column connector 100 only needs to connect three mutually perpendicular beams 200, then only two relative placement cavities 101 are needed, and the opening direction of the push-in inlet 102 corresponding to the two relative placement cavities 101 is the same. Finally, the opening direction of the push-in inlet 102 is determined according to the welding position of the upright plate 130.

[0049] The design of having the same opening direction for the push-in inlet 102 of the multiple placement cavities 101 arranged opposite each other facilitates the rapid assembly of multiple crossbeams 200 when using multiple beam-column connectors 100 consecutively during the assembly of the frame structure. For example, when installing multiple crossbeams 200 in the same direction in the frame structure, the spatial position can be adjusted when the beam-column connectors 100 are initially fixed, so that the push-in inlet 102 of all the placement cavities 101 of the multiple crossbeams 200 in the same direction in the horizontal plane has the same opening direction. This allows the connection of multiple crossbeams 200 to be completed on one mounting surface. That is, multiple crossbeams 200 in the same direction can all be horizontally pushed into the placement cavity 101 on one mounting side, without having to repeatedly confirm and adjust the pushing direction of the crossbeams 200, or move to different sides of the crossbeams 200 for fixed installation, which greatly improves the assembly speed of the crossbeams 200.

[0050] In some alternative embodiments, the upper cover 110 and the lower cover 120 are cross-shaped plates, T-shaped plates, or straight plates.

[0051] like Figure 1As shown, if the beam-column connector 100 needs to connect four mutually perpendicular beams 200 in the same horizontal plane, the upper cover plate 110 and the lower cover plate 120 can be designed as cross-shaped plates. The cross-shaped plate has four protruding segments. In the horizontal direction, each protruding segment of the upper and lower cross-shaped plates has two side surfaces and one end face. A vertical plate 130 can be set on any side surface to form a placement cavity 101. The side surface without the vertical plate 130 serves as the push-in entrance 102, facilitating the entry of the beam 200 into the placement cavity 101 from that side surface. The upper and lower cross-shaped plates can respectively set four placement cavities 101, and two opposite placement cavities 101 form a group, forming two groups. At this time, the opening direction of the opposite placement cavities 101 corresponding to the push-in entrance 102 can be designed to be consistent, such as... Figure 2 As shown, for the two placement cavities 101 arranged opposite to each other, two side panels located on the same vertical plane are selected to connect to the upright plate 130. Then, the other two side panels located on the same vertical plane are used as the push-in inlet 102. Therefore, the two placement cavities 101 arranged opposite to each other can have their corresponding push-in inlets 102 facing the same direction, forming a consistent opening direction.

[0052] like Figure 3 and Figure 4 As shown, if the beam-column connector 100 needs to connect three mutually perpendicular beams 200 in the same horizontal plane, the upper cover plate 110 and the lower cover plate 120 can be designed as T-shaped plates. The T-shaped plate has three protruding segments. Similarly, by setting vertical plates 130 on different sides, three placement cavities 101 are formed, and two of the placement cavities 101 are set opposite to each other. Furthermore, the push-in inlets 102 corresponding to the two opposite placement cavities 101 can be designed to face the same direction. The single placement cavity 101 located below the T-shape can choose any side as the push-in inlet 102. When it is necessary to achieve rapid assembly of multiple beams 200, the structural form of multiple T-shaped plates must be consistent.

[0053] If the beam-column connector 100 only needs to connect two horizontal beams 200 in the same direction in the same horizontal plane, the upper cover plate 110 and the lower cover plate 120 can be designed as straight plates, and two opposite placement cavities 101 can be formed by referring to the above principle, and the corresponding push inlet 102 can be designed with the opening direction consistent.

[0054] like Figure 5As shown, in some optional embodiments, the upper cover plate 110 and the lower cover plate 120 are L-shaped plates, and the push-in inlets 102 of two adjacent placement cavities 101 are interconnected; if the beam-column connector 100 needs to connect two mutually perpendicular beams 200 in the same horizontal plane, the upper cover plate 110 and the lower cover plate 120 can be designed as L-shaped plates with two protruding segments. Similarly, by setting vertical plates 130 on different sides, two placement cavities 101 are formed. The two placement cavities 101 are adjacent, and the two push-in inlets 102 can be selected to be connected or separated according to the working conditions, such as... Figure 6 As shown, the push-in inlets 102 corresponding to two adjacent placement cavities 101 are connected to each other, that is, there is no vertical plate 130 separating the two placement cavities 101.

[0055] In some optional embodiments, the upper cover plate 110 and the lower cover plate 120 are fixed to the upright plate 130 by welding. The welds between the upper cover plate 110 and the lower cover plate 120 and the upright plate 130 are all located on the outside of the placement cavity 101. In order to facilitate factory prefabrication and ensure the structural strength of the beam-column connector 100 itself, the connection of the upright plate 130, the upper cover plate 110 and the lower cover plate 120 are all fixed by factory welding. During welding, only one-sided welding is required, that is, only one-sided fillet weld is formed on the outside of the placement cavity 101. This ensures that there are no welds inside the placement cavity 101 and no protruding weld feet abutting the beam 200 to be placed. This effectively improves the connection accuracy between the beam-column connector 100 and the beam 200, and facilitates accurate alignment of the holes for bolt fixing.

[0056] In some alternative embodiments, the clearance hole 103 is located at the center of the upper cover plate 110 and / or the lower cover plate 120. The position of the clearance hole 103 determines the installation position of the core column 140. Designing the clearance hole 103 to be opened at the center of the upper cover plate 110 or the lower cover plate 120 facilitates the even distribution of multiple placement cavities 101. The overall symmetry of the beam-column connector 100 is good, which facilitates the improvement of stress performance and installation stability. For example, if the upper cover plate 110 is a cross-shaped plate, the clearance hole 103 is located at the intersection, and the distance from the four ends of the cross-shaped plate is equal. For example, if the upper cover plate 110 is a T-shaped plate, the clearance hole 103 is located at the middle intersection, and the distance from the three ends of the T-shaped plate is equal. This facilitates the formation of three placement cavities 101 of uniform size centered on the core column 140.

[0057] In some optional embodiments, the upper cover plate 110 and the lower cover plate 120 are respectively provided with armhole plates 150 at the corners; the cross-shaped, L-shaped and T-shaped upper cover plates 110 and lower cover plates 120 are all provided with armhole plates 150 at the corners. They can be formed by welding or integrally formed when processing the upper cover plate 110 and the lower cover plate 120, that is, the structure with chamfers at the corners can effectively improve the structural strength of the upper cover plate 110 and the lower cover plate 120, especially the compressive strength of each protruding segment, which is conducive to improving the compressive performance of the placement cavity 101; and some armhole plates 150 are also located on the outside of the push-in port 102, which can serve as a pre-placement platform when the crossbeam 200 is pushed horizontally into the placement cavity 101, providing positioning guidance for the push-in of a single crossbeam 200, which is conducive to the rapid alignment of the crossbeam 200 and its push into the placement cavity 101, thus improving the assembly efficiency.

[0058] Furthermore, when the structural design of selecting the same installation direction for the push-in ports 102 results in the push-in ports 102 of two adjacent placement cavities 101 being interconnected, there is no vertical support plate 130 at the interconnected push-in ports 102. Consequently, the vertical bearing capacity of the upper cover plate 110 and the lower cover plate 120 at this location is relatively small. When the column 300 is sleeved on the outside of the core column 140, the longer column 300 will generate a large deflection force and gravity, which places certain requirements on the bearing capacity of the upper cover plate 110 and the lower cover plate 120. With a certain plate thickness, the upper cover plate 110 and the lower cover plate 120 lack the position of the vertical support plate 130. That is, the corner of the upper cover plate 110 and the lower cover plate 120 without the support of the vertical support plate 130 is a weak position. Therefore, the armhole plate 150 can effectively reinforce this weak position, ensuring that the beam-column connector 100 can be quickly assembled while having good load-bearing performance.

[0059] In some alternative embodiments, the core column 140 is fixedly connected to the upright plate 130, and a pad 160 is provided between the core column 140 and the upright plate 130. The core column 140 is fixed to the upright plate 130, thus allowing for a seamless connection of the upright 300 without welding to the upper cover plate 110 or lower cover plate 120. Alternatively, the core column 140 can be connected to the upper cover plate 110 or lower cover plate 120 via a single-sided fillet weld, improving the load-bearing capacity of the upper cover plate 110 and lower cover plate 120. Fixing the core column 140 to the vertical plate 130 can also effectively improve the stress performance of the beam-column connector 100. When the core column 140 is subjected to the horizontal stress of the vertical column 300, it can be transferred to the vertical plate 130, and then distributed to the upper cover plate 110 and the lower cover plate 120 through the long weld of the vertical plate 130, thereby improving the connection stability of the beam and column. If the core column 140 and the upper cover plate 110 or the lower cover plate 120 are only welded at the clearance hole 103, the stress area is smaller, and the structural strength requirements of the upper cover plate 110 and the lower cover plate 120 are higher.

[0060] Meanwhile, the core column 140 can transmit force through the upright plate 130, and can also avoid improving the load-bearing performance of the core column 140 by thickening the core column 140, thereby effectively controlling the production cost of the beam-column connector 100; the core column 140 can be connected with upright plates 130 on all four sides, that is, increasing the number of upright plates 130 can divide and form a more complete placement cavity 101, and can also effectively improve the vertical bearing capacity of the upper cover plate 110 and the lower cover plate 120.

[0061] The pad 160 added between the core column 140 and the upright plate 130 has a certain distance between the edge of the upright plate 130 and the edge of the clearance hole 103, since the upper cover plate 110 and the lower cover plate 120 may have clearance holes 103, which are larger than the cross-sectional area of ​​the core column 140. In order to optimize the support performance of the upright plate 130 and form a placement cavity 101 of the same specification, the pad 160 can not only serve as a connecting plate to facilitate the fixing of the core column 140 and the upright plate 130, but also play a positioning role in the installation and fixing of the upright plate 130 in the factory according to the pre-designed reasonable thickness. For example, after the pad 160 is fixed around the core column 140 and the positioning is completed, the upright plate 130 can be directly welded to the pad 160 without having to position the upright plate 130 again. This allows for the precise assembly of the beam-column connector 100, thereby improving the prefabrication efficiency of the beam-column connector 100.

[0062] In some alternative embodiments, the core column 140 has a segment extending out of the upper cover plate 110 and / or the lower cover plate 120, and the segment is provided with a mounting hole 104. The column 300 is sleeved on the outside of the core column 140. Alternatively, the core column 140 can be connected by extending out of the clearance hole 103, that is, the core column 140 has a segment extending out of the clearance hole 103, which facilitates the installation of bolts. Further, the column 300 is sleeved on the outside of the core column 140 for connection. Compared with the connection method where the core column 140 is sleeved on the outside of the column 300, the structural volume of the core column 140 can be effectively controlled. At the same time, a smaller clearance hole 103 is designed, making the structure of the entire beam-column connector 100 more compact, which can optimize the structural volume of the beam-column connector 100 and improve the overall structural strength.

[0063] like Figure 9 As shown, in some optional embodiments, the beam-column connector 100 further includes: a base plate 170, which is disposed at the bottom end of the segment, the area of ​​the base plate 170 is larger than the bottom area of ​​the core column 140, and a plurality of vertical reinforcing plates 180 are provided at the connection between the base plate 170 and the core column 140.

[0064] When the beam-column connector 100 is applied to the bottom of the frame structure, only the top of the core column 140 will be connected to the column 300. The base plate 170 facilitates the fixing of the beam-column connector 100 to the ground. The base plate 170 is fixed to the end of the segment extending from the core column 140. That is, the base plate 170, the upper cover plate 110, and the lower cover plate 120 all have a certain distance, which can form an operating space to facilitate the bolt fixing of the crossbeam 200. The vertical reinforcing plate 180 can strengthen the connection strength between the base plate 170 and the core column 140, thereby ensuring the stability of the entire beam-column connector 100 fixed by the base plate 170.

[0065] Based on the convenience of production and processing and the requirements of specific working conditions, the specific structure of the beam-column connector 100 is combined in a certain way in various optional embodiments. That is, the upper cover plate 110 and the lower cover plate 120 are steel plates arranged parallel to each other and have the same specifications and dimensions. The core column 140 is a rectangular hollow steel column. Between the upper cover plate 110 and the lower cover plate 120, the four sides of the core column 140 are welded with pads 160, and each side has two vertical rectangular pads 160. At the same time, the four sides of the core column 140 are provided with upright plates 130 to fix the pads 160, thereby indirectly forming a fixed connection between the upright plates 130 and the core column 140. Of course, here... The upright plates 130 around the core column 140 can also serve as one side of each placement cavity 101 and have a certain positioning effect. They can also serve as guide plates for the horizontal pushing of the crossbeam 200 and can accurately position the crossbeam 200. This makes it easy for the connecting through hole of the crossbeam 200 to be precisely aligned with the mounting hole 104 after the crossbeam 200 is pushed in. Correspondingly, on the side of the upright plate 130 close to the core column 140, the upright plates 130 around the core column 140 form a single-sided fillet weld with the upper cover plate 110 and the lower cover plate 120. The core column 140 is connected to the upright column 300 by the segment extending out of the avoidance hole 103, and the upright column 300 is sleeved on the outside of the core column 140.

[0066] Based on the beam-column connector 100 as a node at different locations in the frame structure, the shapes of the upper cover plate 110 and the lower cover plate 120 are selected respectively, as well as whether the core column 140 extends out of the upper cover plate 110 or the lower cover plate 120, and the selection of the opening of the corresponding clearance hole 103 are also determined:

[0067] For example, beam-column connector 100 needs to vertically connect two columns 300 and horizontally connect four mutually perpendicular beams 200, such as... Figure 1 and Figure 2As shown, both the upper cover plate 110 and the lower cover plate 120 are processed into cross-shaped plates, and clearance holes 103 are opened at the center of both the upper cover plate 110 and the lower cover plate 120. The core column 140 passes through the clearance holes 103 and extends out of both the upper cover plate 110 and the lower cover plate 120. The extended segment is provided with mounting holes 104. Four placement cavities 101 are formed between the upper cover plate 110 and the lower cover plate 120 through the vertical plate 130. Two of the placement cavities 101 are arranged opposite each other. By designing the position of the vertical plate 130, the two opposite placement cavities 101 are located on the two sides of the same vertical plane. The other two sides of the same vertical plane are used as push-in inlets 102, so that the opening directions of the corresponding two push-in inlets 102 are the same.

[0068] To improve the structural strength of the upright plate 130 and increase production efficiency, the upright plate 130 forming the placement cavity 101 and the upright plates 130 around the core column 140 can be designed as a whole. The structure of all the upright plates 130 can be composed of five steel plates of different lengths. The longest steel plate serves as the side of two placement cavities 101 and the side connecting the core column 140. The next steel plate serves as the side of one placement cavity 101 and the side connecting the core column 140. Two steel plates correspond only to the two sides of the core column 140, and one steel plate serves only as the side of one placement cavity 101. The upper cover plate 110 and the lower cover plate 120 have two mounting holes 104 at appropriate positions in each placement cavity 101 for connecting the crossbeam 200.

[0069] For example, beam-column connector 100 needs to vertically connect two columns 300 and horizontally connect three mutually perpendicular beams 200, such as... Figure 3 and Figure 4 As shown, both the upper cover plate 110 and the lower cover plate 120 are processed into T-shaped plates. The design is different from the cross-shaped plate mentioned above. The upper cover plate 110 and the lower cover plate 120 are connected by a vertical plate 130 to form three placement cavities 101. Furthermore, the two placement cavities 101 that are arranged opposite to each other have the same opening direction of the corresponding push inlet 102. All vertical plates 130 are designed as an integral whole as possible. The structure of all vertical plates 130 can be composed of four steel plates.

[0070] For example, beam-column connector 100 needs to vertically connect two columns 300 and horizontally connect two mutually perpendicular beams 200, such as... Figure 5 and Figure 6As shown, both the upper cover plate 110 and the lower cover plate 120 are processed into L-shaped plates. The design is different from the cross-shaped plate mentioned above. The upper cover plate 110 and the lower cover plate 120 are connected by a vertical plate 130 to form two adjacent placement cavities 101. The corresponding push-in inlets 102 of the two adjacent placement cavities 101 are connected to each other. Similarly, all the vertical plates 130 are designed as a whole as possible. The structure of all the vertical plates 130 is composed of four steel plates.

[0071] For example, the beam-column connector 100 is used at the top of a frame structure, requiring a vertical connection to one column 300 and a horizontal connection to four mutually perpendicular beams 200, such as... Figure 7 and Figure 8 As shown, both the upper cover plate 110 and the lower cover plate 120 are machined into cross-shaped plates. The difference from the aforementioned cross-shaped plates lies in the design: to make the overall frame structure more aesthetically pleasing and simple, and to prevent foreign objects from entering the hollow core column 140, a clearance hole 103 is only provided in the center of the lower cover plate 120. The core column 140 only extends out of the lower cover plate 120, and its top is covered by the upper cover plate 110. This avoids the need for additional transverse partitions to seal the hollow core column 140. The core column 140 can be connected to the upper cover plate 110 and the lower cover plate 120. 0. Welding and fixing are performed on one side by fillet weld. Although the upper cover plate 110 does not have a clearance hole 103, resulting in limited connection strength between the core column 140 and the upper cover plate 110, the horizontal stress on the core column 140 can be transferred to the vertical plate 130 after the core column 140 is fixedly connected to the vertical plate 130. The stress is then transferred to the upper cover plate 110 and the lower cover plate 120 through the long weld of the vertical plate 130. This effectively strengthens the weakening of the connection strength caused by the lack of clearance hole 103, ensuring the structural strength of the entire beam-column connector 100.

[0072] For example, the beam-column connector 100 is used at the bottom of a frame structure, requiring a vertical connection to one column 300 and a horizontal connection to four mutually perpendicular beams 200, such as... Figure 9 As shown, both the upper cover plate 110 and the lower cover plate 120 are processed into cross-shaped plates. The design of the core column 140 is different from the cross-shaped plate mentioned above. In order to facilitate the operation space of the fixed beam 200, the core column 140 has a segment that extends out of the lower cover plate 120. The segment of the core column 140 that extends out of the lower cover plate 120 is not connected to the column 300. It provides a certain distance as an operation space for the installation bolts after the beam-column connector 100 is fixed to the ground. In order to facilitate the fixing of the beam-column connector 100 to the ground, a base plate 170 is also fixed at the bottom of the segment to increase the fixing surface of the beam-column connector 100 to the ground. At the same time, at the connection between the base plate 170 and the core column 140, multiple reinforcing plates 180 are provided around the core column 140.

[0073] When constructing a frame structure, this invention also provides a method for installing the beam-column connector 100, which involves the following steps:

[0074] Prefabrication steps: Based on the frame structure composed of beams 200, columns 300, and beam-column connectors 100, prefabricate them.

[0075] Installation steps for column 300: Connect and fix column 300 to the core column 140 of beam-column connector 100;

[0076] Installation steps for crossbeam 200: Push the end of crossbeam 200 into placement cavity 101 through push-in port 102, and connect and fix crossbeam 200 to upper cover plate 110 and lower cover plate 120.

[0077] In some optional implementations, in order to further improve the installation efficiency of the crossbeams 200 and columns 300, the position design of multiple beam-column connectors 100 relative to the push-in inlets 102 is fully utilized, so that the crossbeams 200 in the same direction of the frame structure can be installed in a unified direction. Thus, there is no need to temporarily distinguish and change the installation surface of the crossbeams 200 on site, which can greatly improve the installation speed of the crossbeams 200. The column 300 installation steps also include a positioning step: adjusting and confirming the spatial position of the beam-column connectors 100 so that all beam-column connectors 100 are placed in the multiple placement cavities 101 of the crossbeams 200 in the same direction, and the opening direction of all push-in inlets 102 is kept consistent, thus completing the initial fixing of all beam-column connectors 100.

[0078] For example, the frame structure to be assembled is a two-layer structure, that is, the frame height is composed of two columns 300, which need to be connected to several beams 200. The beam-column connectors 100 can be divided into three layers according to different horizontal planes, including beam-column connectors 100 located at the bottom of the frame, beam-column connectors 100 located in the middle of the frame, and beam-column connectors 100 located at the top of the frame. Each layer of multiple beam-column connectors 100 needs to connect different numbers of beams 200. Therefore, beam-column connectors 100 with cross-shaped plates, T-shaped plates, and L-shaped plates on the upper cover plate 110 and the lower cover plate 120 will all be used. In addition, the multiple beam-column connectors 100 located at the bottom of the frame are all fixed with a base plate 170 at the bottom of the core column 140. The beam-column connectors 100 located at the top of the frame and the upper cover plate 110 do not have clearance holes 103.

[0079] Prefabrication steps: The required dimensions of the beams 200 and columns 300 are prefabricated in the factory. Both ends of the beams 200 and columns 300 are prefabricated with connecting through holes, and both ends of the columns 300 have hollow cavities to accommodate the core columns 140. Then, according to the dimensions of the prefabricated beams 200 and columns 300, as well as the composition of the frame structure, all beam-column connectors 100 corresponding to the beam-column connection nodes are prefabricated.

[0080] 300 column installation steps: as follows Figure 10 As shown, the column 300 is connected and fixed to the core column 140 of the beam-column connector 100. The positioning steps can be interspersed as follows: First, the multiple beam-column connectors 100 at the bottom of the frame are fixedly connected to the ground through the base plate 170. During fixing, the spatial position of the beam-column connectors 100 is adjusted to ensure that all the beam-column connectors 100 at the bottom of the frame are aligned with each other. The opening direction of all the placement cavities 101 of the crossbeams 200 in the same direction is consistent, so that the multiple crossbeams 200 in the same direction have a uniform mounting surface to push them into the placement cavities 101. Then, all the beam-column connectors 100 at the bottom of the frame are connected and fixed to the column 300 at the bottom of the frame. The specific connection steps are to fit the column 300 onto the outside of the section of the core column 140 that extends out of the upper cover plate 110, and then tighten it with bolts.

[0081] Furthermore, using the fixed columns 300 at the bottom of the frame, all beam-column connectors 100 in the middle of the frame are positioned. That is, when all beam-column connectors 100 in the middle of the frame are fixed to the columns 300 at the bottom of the frame, the spatial position of the beam-column connectors 100 is adjusted. The principle of aligning the push-in inlet 102 is not repeated here. The mounting surface of the uniformly selected crossbeam 200 can be the same as all the beam-column connectors 100 at the bottom of the frame, or the mounting surface of the crossbeam 200 in the middle of the frame can be uniform only.

[0082] Furthermore, by utilizing all the beam-column connectors 100 in the middle of the frame, the upper column 300 of the frame is installed, and finally all the beam-column connections at the top of the frame are fixed. At the same time, the positioning steps are performed to adjust the opening direction of the push-in port 102, thereby unifying the mounting surface of the crossbeam 200 at the top of the frame.

[0083] Installation steps for 200mm crossbeam: (See below) Figure 11 As shown, the crossbeams 200 at the bottom, middle and top of the frame are installed in a predetermined order. Multiple crossbeams 200 in the same direction can be quickly pushed into the corresponding placement cavity 101 on the predetermined mounting surface of the crossbeams 200, and the ends of the crossbeams 200 are connected and fixed to the upper cover plate 110 and the lower cover plate 120 by fixing bolts.

[0084] It should be noted that the installation method of the beam-column connector 100 provided by the present invention allows for flexible adjustment of the order of all steps. For example, after fixing the beam-column connector 100 at the bottom of the frame, the horizontal beam 200 at the bottom of the frame can be installed first, followed by the installation of the vertical column 300. Therefore, the vertical column 300, beam-column connector 100, and horizontal beam 200 can all be constructed locally or in a certain order according to the actual working conditions. The prefabrication step can also be completed in stages according to the construction progress. Furthermore, some of the push-in inlets 102 can be aligned according to certain working conditions. That is, it is not necessary for every beam-column connector 100 to be within the positioning step. The horizontal beam 200, vertical column 300, and even the beam-column connector 100 are not limited to steel structures; they can be made of wood, plastic, or other building materials. Correspondingly, other connection methods can be used instead of welding when processing the beam-column connector 100.

[0085] The beam-column connector 100 installation method provided by this invention can use the beam-column connector 100 as the beam-column connection node of the frame. It is not necessary to temporarily support or fix the crossbeam 200 and the column 300 in advance to form the required connection node. The installation steps can be flexibly adjusted according to the working conditions, and a uniform installation surface can be preset for the crossbeam 200 in the same direction. This can greatly improve the installation speed of the crossbeam 200 on site. The number of bolts required for the entire installation and fixing is small. The connection between the crossbeam 200 and the column 300 does not require welding, which can realize the rapid construction of the frame structure. It also facilitates the dismantling and reuse of the frame structure.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A beam-column connector, characterized in that, include: Top cover (110). A lower cover plate (120) is disposed opposite to the upper cover plate (110); A vertical plate (130) is connected between the upper cover plate (110) and the lower cover plate (120). The upper cover plate (110), the lower cover plate (120), and the vertical plate (130) form a plurality of placement cavities (101). Each placement cavity (101) is used to place one end of a crossbeam (200). Each placement cavity (101) is provided with a push-in port (102), the opening direction of which is perpendicular to the length direction of the crossbeam (200). Core post (140), the core post (140) is vertically disposed between the upper cover plate (110) and the lower cover plate (120), the upper cover plate (110) and / or the lower cover plate (120) are provided with clearance holes (103) corresponding to the core post (140). The core column (140), the upper cover plate (110), and the lower cover plate (120) are all provided with mounting holes (104). The core column (140), the upper cover plate (110), and the lower cover plate (120) are respectively connected to the column (300) or the crossbeam (200) through the mounting holes (104). At least two of the placement cavities (101) are arranged opposite to each other, and the opening directions of the push-in ports (102) corresponding to the oppositely arranged placement cavities (101) are the same; The core column (140) is fixedly connected to the upright plate (130). The upper cover plate (110) and the lower cover plate (120) are fixed to the upright plate (130) by welding, and the welding is done on one side. The welds between the upper cover plate (110) and the lower cover plate (120) and the upright plate (130) are all located on the outside of the placement cavity (101).

2. The beam-column connector according to claim 1, characterized in that, The upper cover plate (110) and the lower cover plate (120) are cross-shaped plates, T-shaped plates or straight plates.

3. The beam-column connector according to claim 1, characterized in that, The upper cover plate (110) and the lower cover plate (120) are L-shaped plates, and the push-in ports (102) of the two adjacent placement cavities (101) are interconnected.

4. The beam-column connector according to claim 2 or 3, characterized in that, The upper cover plate (110) and the lower cover plate (120) are respectively provided with armhole plates (150) at the corners.

5. The beam-column connector according to any one of claims 1 to 3, characterized in that, A pad (160) is provided between the core column (140) and the upright plate (130).

6. The beam-column connector according to claim 1, characterized in that, The core post (140) has a segment extending out of the upper cover plate (110) and / or the lower cover plate (120), the segment having a mounting hole (104), and the column (300) sleeved on the outside of the core post (140).

7. The beam-column connector according to claim 6, characterized in that, The beam-column connector (100) also includes: A base plate (170) is provided at the bottom end of the segment. The area of ​​the base plate (170) is larger than the bottom area of ​​the core column (140). Multiple vertical reinforcing plates (180) are provided at the connection between the base plate (170) and the core column (140).

8. A method for installing beam-column connectors, characterized in that, Installation using the beam-column connector (100) as described in any one of claims 1 to 7 includes the following steps: Prefabrication steps: Prefabricate beam-column connectors (100) according to the frame structure composed of the crossbeam (200), the column (300) and the crossbeam (200) and the column (300); Column (300) installation steps: Connect and fix the column (300) to the core column (140) of the beam-column connector (100); The column (300) installation steps also include: adjusting and confirming the spatial position of the beam-column connector (100) so that all beam-column connectors (100) are placed in the same direction of the multiple placement cavities (101) of the crossbeam (200), and the opening direction of all push-in ports (102) is kept consistent, thus completing the initial fixing of all beam-column connectors (100); Installation steps of the crossbeam (200): Push the end of the crossbeam (200) into the placement cavity (101) from the push-in port (102), and connect and fix the crossbeam (200) to the upper cover plate (110) and the lower cover plate (120).

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