An assembled beam-column node

Abstract

The present invention relates to an assembled beam-column node, which belongs to the technical field of beam-column connection structures. It includes a concrete column, a concrete beam horizontally arranged on one side of the concrete column, two beam end side plates vertically arranged on both sides of the concrete beam close to one end of the concrete column, two column end side plates horizontally arranged on the outside of the two beam end side plates away from the concrete beam, two fixed plates vertically arranged between the two beam end side plates and the two column end side plates, and a plurality of U-shaped energy absorption plates vertically arranged at equal intervals on the upper and lower sides between the two fixed plates. The present invention forms a metal yield energy absorption box through the beam end side plates, the fixed plates inside the column end side plates, and the U-shaped energy absorption plates. Under the action of moderate earthquakes, the metal yield energy absorption box first yields. As the earthquake action increases, the beam end rotation angle increases, causing the beam end side plates and the column end side plates to undergo rotational friction, entering the friction energy absorption stage, thereby achieving continuous energy absorption from moderate earthquakes to large earthquakes, and improving the seismic performance of the assembled beam-column node.

Description

Technical Field

[0001] The present invention belongs to the technical field of beam-column connection structures, and in particular relates to an assembled beam-column node. Background Art

[0002] During disasters like earthquakes, existing prefabricated concrete structures often experience damage to column-beam joints, which in turn damages the entire prefabricated concrete frame, resulting in loss of life and property. To improve a building's seismic performance, it's necessary to dissipate the seismic energy of the concrete frame. This will meet the prefabricated concrete frame's requirements for ductility and energy dissipation, reduce the concrete frame's seismic response, mitigate damage to the concrete frame during earthquakes, and ultimately minimize the damage to the building.

[0003] When concrete frames are subjected to earthquakes to dissipate energy, dampers are generally installed at the beam-column joints. Dampers are often arranged at the upper and lower flanges of the beam-column joints. However, dampers all have a single energy dissipation mode and cannot meet the continuous energy dissipation requirements at different stages of an earthquake.

[0004] Currently, to effectively protect concrete frames, most approaches use steel components to weaken beam-column connections, dissipating the vibration of the concrete frame during earthquakes. For example, H-shaped metal components are fabricated into dog-bone shapes or low-yield-point metal components to connect beam-column joints. This allows the metal components to yield during earthquakes, dissipating the vibration energy of the concrete frame. However, dog-bone H-shaped steel components and low-yield-point metal components can only yield during moderate earthquakes. After yielding, the strength and stiffness of the joints continue to decrease under cyclic loading, making them unable to continuously dissipate earthquake energy. Summary of the Invention

[0005] In view of this, the present invention provides an assembled beam-column node, which connects the beam-column node to resist shear force through the coordinated connection of the beam end side plates and the column end side plates, and forms a metal yield energy absorption box with the fixed plate and the U-shaped energy absorption plate inside it. Under the action of moderate earthquakes, the metal yield energy absorption box yields first. As the seismic action increases, the rotation angle of the beam end increases during a large earthquake, causing the beam end side plates and the column end side plates to rotate and rub, entering the friction energy absorption stage, thereby achieving continuous energy absorption from moderate earthquakes to large earthquakes, and improving the seismic performance of the assembled beam-column node.

[0006] The technical solution of the present invention is: an assembled beam-column node, comprising a concrete column, a concrete beam, a beam end side plate, a column end side plate, a fixed plate, and a U-shaped energy dissipation plate; the concrete beam is horizontally arranged on one side of the concrete column, and the two beam end side plates are vertically arranged on both sides of the concrete beam close to one end of the concrete column, one end inner side of the two beam end side plates is connected to the concrete beam, and the other end extends out of the end face of the concrete beam, the two column end side plates are horizontally arranged on the outside of the side of the two beam end side plates away from the concrete beam, the column end side plate and the beam end side plate are parallel to each other, one end of the column end side plate is connected to the beam end side plate by rotational friction, and the other end is connected to the concrete beam end side plate by rotational friction. One end is connected to the concrete column, and two fixed plates are vertically arranged between the two beam end side plates on one side close to the concrete beam and between the two column end side plates on one side close to the concrete column. The fixed plate and the beam end side plates are perpendicular to each other, and both ends of the fixed plate are fixedly connected to the beam end side plates or the column end side plates. Multiple U-shaped energy absorption plates are vertically arranged at equal intervals on the upper and lower sides between the two fixed plates, and the openings of the U-shaped energy absorption plates on the upper and lower sides are arranged opposite each other. The U-shaped energy absorption plates and the fixed plates are perpendicular to each other, and both ends of the U-shaped energy absorption plates are connected to the fixed plates. The opening ends of the U-shaped energy absorption plates on the upper and lower sides are arranged opposite each other and fit each other.

[0007] Preferably, two pairs of energy-consuming box end plates are provided on the upper and lower sides between the two fixed plates. The two energy-consuming box end plates of each pair are connected to the fixed plate by bolt fasteners on one side facing away from each other, and are fixedly connected to the U-shaped energy-consuming plate on the other side. The proximal ends of the two energy-consuming box end plates on the same fixed plate are fitted together and connected.

[0008] Preferably, horizontal through holes are opened in the middle of the overlapping sections of the beam end side plates and the column end side plates, and the holes are coaxial. A pin is passed horizontally between the openings of the upper and lower U-shaped energy absorption plates, and both ends of the pin pass through the through holes. The pin is located on the inner side of the beam end side plate and the outer side of the column end side plate, and nuts are respectively provided on the inner side of the beam end side plate and the outer side of the column end side plate and are fixedly connected with the threads.

[0009] Preferably, the beam end side plates and the column end side plates are symmetrically provided with two trapezoidal slots on the upper and lower sides of the pin shaft, the beam end side plates are located on the outside of the through hole and are radially provided with multiple arc-shaped bolt holes at equal intervals, and the column end side plates are located on the outside of the through hole and are radially provided with multiple circular bolt holes at equal intervals, the circular bolt holes correspond to the arc-shaped bolt holes one by one, bolts are passed through the circular bolt holes, the bolts are passed through the arc-shaped bolt holes and are provided with nuts and are fixedly connected with the nuts through the nuts.

[0010] Preferably, end steel plates are vertically provided on one side of the two fixing plates close to the concrete column and concrete beam, the end steel plates and the fixing plates are parallel to each other, both ends of the end steel plates are fixedly connected to the beam end side plates or the column end side plates, and reinforcing plates are horizontally provided between the end steel plates and the fixing plates, and the reinforcing plates are fixedly connected to the end steel plates, the fixing plates and the beam end side plates or the column end side plates.

[0011] Preferably, a plurality of bolts are fixed horizontally at equal intervals on the side of the end steel plate away from the reinforcing plate, and a plurality of bolts are fixed horizontally at equal intervals on the side of the end steel plate away from the reinforcing plate. The bolts located between the beam end side plates are fixedly connected to the steel cage in the concrete beam, and the bolts located between the column end side plates are fixedly connected to the concrete column.

[0012] Preferably, a column end restraining steel pipe is sleeved on the outside of the steel cage of the concrete column, and two reserved slits are vertically opened on the side of the column end restraining steel pipe close to the concrete beam. The two reserved slits are located on both sides of the steel cage of the concrete column, and the column end side plate extends into the interior of the column end restraining steel pipe through the reserved slits. The end of the column end side plate away from the beam end side plate is fixedly connected to the inner wall of the column end restraining steel pipe, and the column end side plate is located inside the column end restraining steel pipe and has a square hole horizontally opened thereon. A plurality of bolts are fixed at equal intervals on the inner wall of the column end restraining steel pipe, and a plurality of bolts are fixed at equal intervals on the side of the column end restraining steel pipe close to the end face steel plate.

[0013] Compared with the prior art, the present invention provides an assembled beam-column node, which connects the beam-column node to resist shear force through the coordinated connection of the beam end side plates and the column end side plates, and forms a metal yield energy absorption box with the fixed plate and the U-shaped energy absorption plate inside. Under the action of moderate earthquakes, the metal yield energy absorption box yields, and as the intensity of the earthquake increases, the beam end side plates and the column end side plates produce rotational friction. The metal yield energy absorption box continues to consume the energy of the earthquake as it works, avoiding the rapid decrease in strength and stiffness of the beam-column node, and improving the seismic performance of the assembled beam-column node. The assembled beam-column node of the present invention has good seismic performance, high safety, strong practicality, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 It is a diagram of the column end connection structure of the present invention;

[0016] Figure 3 This is a diagram of the beam end connection structure of the present invention;

[0017] Figure 4 This is a diagram of the combined structure of the U-shaped energy dissipation plate of the present invention;

[0018] Figure 5 It is a diagram of the internal structure of the column end of the present invention;

[0019] Figure 6 It is a diagram of the internal structure of the beam end of the present invention;

[0020] Figure 7 This is a structural diagram of the U-shaped energy dissipation plate of the present invention;

[0021] Figure 8 It is a pin structure diagram of the present invention;

[0022] Figure 9 This is a structural diagram of the column end side plate of the present invention;

[0023] Figure 10 This is a structural diagram of the beam end side plate of the present invention;

[0024] Figure 11 It is a structural diagram of the column end restrained steel pipe of the present invention. DETAILED DESCRIPTION

[0025] The present invention provides a prefabricated beam-column joint. Figures 1 to 11 The present invention is described with reference to a structural schematic diagram of FIG.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] During disasters like earthquakes, existing prefabricated concrete structures often experience damage to column-beam joints, which in turn damages the entire prefabricated concrete frame, resulting in loss of life and property. To improve a building's seismic performance, it's necessary to dissipate the seismic energy of the concrete frame. This will meet the prefabricated concrete frame's requirements for ductility and energy dissipation, reduce the concrete frame's seismic response, mitigate damage to the concrete frame during earthquakes, and ultimately minimize the damage to the building.

[0028] When concrete frames are subjected to earthquakes to dissipate energy, dampers are generally installed at the beam-column joints. Dampers are often arranged at the upper and lower flanges of the beam-column joints. However, dampers all have a single energy dissipation mode and cannot meet the continuous energy dissipation requirements at different stages of an earthquake.

[0029] Currently, to effectively protect concrete frames, most approaches use steel components to weaken beam-column connections, dissipating the vibration of the concrete frame during earthquakes. For example, H-shaped metal components are fabricated into dog-bone shapes or low-yield-point metal components to connect beam-column joints. This allows the metal components to yield during earthquakes, dissipating the vibration energy of the concrete frame. However, dog-bone H-shaped steel components and low-yield-point metal components can only yield during moderate earthquakes. After yielding, the strength and stiffness of the joints continue to decrease under cyclic loading, making them unable to continuously dissipate earthquake energy.

[0030] Based on the above problems, the present invention provides an assembled beam-column node, which connects the beam-column node to resist shear force through the coordinated connection of the beam end side plates and the column end side plates, and forms a metal yield energy absorption box with the fixed plate and U-shaped energy absorption plate inside it. Under the action of moderate earthquakes, the metal yield energy absorption box yields first. As the seismic action increases, the rotation angle of the beam end increases during a large earthquake, causing the beam end side plates and the column end side plates to rotate and rub, entering the friction energy absorption stage, thereby achieving continuous energy absorption from moderate earthquakes to large earthquakes, and improving the seismic performance of the assembled beam-column node.

[0031] Example 1

[0032] like Figure 1-3The cam 2 is a vertical cam 2 that is fixed on the upper surface of the concrete column 1 and the lower surface of the concrete column 1 is fixed with two horizontal cams 2 and two horizontal cams 2, and the vertical cam 2 is a vertical cam 2 that is fixed with two horizontal cams 2 and two horizontal cams 2. The U-shaped energy absorbing plates 6 are perpendicular to the fixed plates 5, and the two ends of the U-shaped energy absorbing plates 6 are connected to the fixed plates 5. The open ends of the U-shaped energy absorbing plates 6 on the upper and lower sides are opposite to each other and fit each other. The other end is flush with the upper and lower sides of the fixed plates 5. The number and thickness of the U-shaped energy absorbing plates are calculated according to the actual design parameters. The friction energy dissipation method of the metal yield energy dissipation box, the column end side plate and the beam end side plate is coupled. By setting the relationship between the bearing capacity of the metal yield energy dissipation box and the friction energy dissipation, the purpose of graded yield is achieved. The friction energy dissipation can provide stable strength and stiffness, so that the stiffness of the beam-column node decreases slowly. The bending moment when the metal yield energy dissipation box yields is less than the bending moment when the column end side plate and the beam end side plate start to work to overcome friction.

[0033] like Figure 6 As shown, preferably, the two fixing plates 5 are vertically provided with end steel plates 51 on one side close to the concrete column 1 and the concrete beam 2, the end steel plates 51 and the fixing plates 5 are parallel to each other, and the two ends of the end steel plates 51 are fixedly connected to the beam end side plates 3 or the column end side plates 4, and the upper and lower sides of the end steel plates 51 are flush with the upper and lower sides of the beam end side plates 3 or the column end side plates 4, and a reinforcing plate 52 is horizontally provided between the end steel plates 51 and the fixing plates 5, and the reinforcing plate 52 is fixedly connected to the end steel plates 51, the fixing plates 5 and the beam end side plates 3 or the column end side plates 4, respectively. By using the end steel plates, the reinforcing plates and the fixing plates in combination, not only can the metal yield energy dissipation box be connected and fixed, and the stability of the connection with the beam end side plates and the column end side plates is improved, but also the stability of the connection between the two beam end side plates and the column end side plates is enhanced, thereby further improving the stability of the assembled beam-column node.

[0034] Example 2

[0035] In order to improve the flexibility of the use of prefabricated beam-column nodes, the metal yield energy absorption box can be replaced after an earthquake by using the energy absorption box end plate in conjunction with the fixed plate, which can ensure the ductility and energy consumption requirements of the prefabricated concrete frame. U-shaped energy absorption plates of different thicknesses and numbers and the size of the bolt pre-tightening force are used to realize plastically controllable and replaceable energy absorption nodes. U-shaped energy absorption plates of different numbers and thicknesses and the prestress of high-strength bolts are set to realize plastic controllability, and the metal yield energy absorption box is connected to the beam and column by bolts to realize manual replacement. The energy dissipation under the action of the earthquake is mainly consumed by the plastic destruction of the metal yield energy absorption box and the friction of the beam end side plate and the column end side plate. During post-earthquake repair, it is mainly necessary to replace the metal yield energy absorption box and increase the bolt prestress.

[0036] like Figure 4 、 7 As shown, preferably, two pairs of energy consumption box end plates 21 are provided on the upper and lower sides between the two fixed plates 5. The two energy consumption box end plates 21 of each pair are connected to the fixed plate 5 on one side facing away from each other by bolt fasteners, and the other side is fixedly connected to the U-shaped energy consumption plate 6. The proximal ends of the two energy consumption box end plates 21 on the same fixed plate 5 are fitted together, and their distal ends are flush with the upper and lower sides of the fixed plate 5.

[0037] Example 3

[0038] In order to further improve the seismic performance of prefabricated beam-column nodes, threads are opened at both ends of the pin shaft for use with nuts, and pressure is applied by tightening the nuts to improve the tightness of the connection between the beam end side plates and the column end side plates. This not only ensures that when the beam end side plates rotate due to friction in a major earthquake, the column end side plates and the inner side of the beam end side plates will not produce large out-of-plane buckling and be damaged, but also the beam end side plates and the column end side plates are connected by high-strength bolts to resist shear force, and the friction between the metal yield energy dissipation box and the beam-column side plates resists bending moment to meet the "strong shear and weak bending" requirement. The circular bolt holes and the arc-shaped bolt holes correspond to each other and the circles where the center axes are located are concentric circles, so as to ensure that after the metal yield energy dissipation box yields, the beam end side plates and the column end side plates will rotate and rub to dissipate energy.

[0039] like Figure 8 、 9 As shown, preferably, a through hole 31 is horizontally opened in the middle of the overlapping section of the beam end side plate 3 and the column end side plate 4 and is coaxial, and a pin 32 is horizontally passed through the openings of the upper and lower U-shaped energy absorption plates 6, and both ends of the pin 32 pass through the through hole 31. The pin 32 is located on the inner side of the beam end side plate 3 and the outer side of the column end side plate 4, and is respectively sleeved with a nut 33 and fixedly connected with it by thread.

[0040] like Figure 10As shown, preferably, the beam end side plate 3 and the column end side plate 4 are symmetrically provided with two trapezoidal notches 41 on the upper and lower sides of the pin shaft 32, the beam end side plate 3 is located on the outside of the through hole 31 and is radially and evenly spaced with a plurality of arc-shaped bolt holes 42, and the column end side plate 4 is located on the outside of the through hole 31 and is radially and evenly spaced with a plurality of circular bolt holes 43, the circular bolt holes 43 correspond to the arc-shaped bolt holes 42 one by one, and bolts 44 are passed through the circular bolt holes 43, and the bolts 44 pass through the arc-shaped bolt holes 42 and are sleeved with nuts 33 and are fixedly connected with them by threads, while the trapezoidal notches 41 on the upper and lower sides are symmetrically provided with two trapezoidal notches 41, and the beam end side plate 3 is located on the outside of the through hole 31 and is radially and evenly spaced with a plurality of circular bolt holes 43, The shaped groove is used in conjunction with the metal yield energy absorption box, which can make the metal yield energy absorption box and the beam end side plates and column end side plates yield together to dissipate energy in the case of small and medium earthquakes. In the case of a large earthquake, after the metal yield energy absorption box yields, the beam end side plates, column end side plates and bolts cooperate to produce rotational friction, realizing the synchronous operation of metal yield energy absorption and friction energy absorption, satisfying the beam-column connection node to maintain elasticity under the action of small and medium earthquakes. When a large earthquake occurs, the metal yield energy absorption box undergoes plastic failure, but the beam end side plates and column end side plates can still maintain an elastic state. Bolt 44 is a high-strength bolt.

[0041] Example 4

[0042] In order to further enhance the strength of the beam-column connection node, studs and end steel plates are used in combination, which can not only be welded and fixed to the steel cage in the concrete beam to improve the connection strength between the concrete beam and the connection node, but also be connected to the concrete column.

[0043] Preferably, a plurality of studs 61 are fixed horizontally at equal intervals on the side of the end steel plate 51 away from the reinforcing plate 52, and a plurality of studs 61 are fixed horizontally at equal intervals on the side of the end steel plate 51 away from the reinforcing plate 52. The studs 61 located between the beam end side plates 3 are fixedly connected to the steel cage in the concrete beam 2, and the studs 61 located between the column end side plates 4 are fixedly connected to the concrete column 1.

[0044] like Figure 5 、 11As shown, preferably, a column end restraining steel pipe 71 is sleeved on the outside of the steel cage of the concrete column 1, and two reserved gaps 72 are vertically opened on the side of the column end restraining steel pipe 71 close to the concrete beam 2. The two reserved gaps 72 are located on both sides of the steel cage of the concrete column 1, and the column end side plate 4 passes through the reserved gaps 72 and extends into the interior of the column end restraining steel pipe 71. The end of the column end side plate 4 away from the beam end side plate 3 is fixedly connected to the inner wall of the column end restraining steel pipe 71, and the column end side plate 4 is located inside the column end restraining steel pipe 71 and has a square hole 73 horizontally opened thereon so that the concrete inside the column end restraining steel pipe 71 can be In order to be connected into a whole, a plurality of bolts 61 are fixed at equal intervals on the inner wall of the column end restraining steel pipe 71, and a plurality of bolts 61 are fixed at equal intervals on the side of the column end restraining steel pipe 71 close to the end face steel plate 51. By using the column end restraining steel pipe in conjunction with the column end side plate, square holes and bolts, the column end side plate concrete column can be connected, and the restrained concrete column can ensure that the column node is not damaged under the action of a large earthquake, meeting the "strong column and weak beam, strong node and weak component" requirement. At the same time, it can increase the assembly speed of the concrete frame, improve the seismic performance of the prefabricated concrete frame, and meet the requirements of ductility and energy consumption.

[0045] The above disclosure is only a preferred specific embodiment of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A prefabricated beam-column joint, comprising: A concrete column (1) and a concrete beam (2) are horizontally arranged on one side of the concrete column (1), and are characterized in that they further include: Two beam end side plates (3) are vertically arranged on both sides of the concrete beam (2) near one end of the concrete column (1), wherein the inner sides of one end of the two beam end side plates (3) are connected to the concrete beam (2), and the other ends extend beyond the end surface of the concrete beam (2); Two column end side plates (4) are horizontally arranged outside the two beam end side plates (3) on one side away from the concrete beam (2), the column end side plates (4) and the beam end side plates (3) are parallel to each other, one end of the column end side plate (4) is connected to the beam end side plate (3) by rotational friction, and the other end is connected to the concrete column (1); Two fixing plates (5), one fixing plate (5) is vertically arranged between the two beam end side plates (3) on one side close to the concrete beam (2), and the other fixing plate (5) is vertically arranged between the two column end side plates (4) on one side close to the concrete column (1), the fixing plates (5) and the beam end side plates (3) are perpendicular to each other, and both ends of the fixing plates (5) are fixedly connected to the beam end side plates (3) or the column end side plates (4); A plurality of U-shaped energy absorbing plates (6) are vertically arranged at equal intervals on the upper and lower sides between the two fixed plates (5); the openings of the U-shaped energy absorbing plates (6) on the upper and lower sides are arranged opposite each other; the U-shaped energy absorbing plates (6) and the fixed plates (5) are perpendicular to each other; both ends of the U-shaped energy absorbing plates (6) are connected to the fixed plates (5); and the opening ends of the U-shaped energy absorbing plates (6) on the upper and lower sides are arranged opposite each other and are fitted and connected to each other.

2. The assembled beam-column node according to claim 1, characterized in that: Two pairs of energy-consuming box end plates (21) are provided on the upper and lower sides between the two fixed plates (5), and the two energy-consuming box end plates (21) of each pair are connected to the fixed plate (5) on one side facing away from each other by bolt fasteners, and are fixedly connected to the U-shaped energy-consuming plate (6) on the other side, and the proximal ends of the two energy-consuming box end plates (21) on the same fixed plate (5) are fitted and connected to each other.

3. The assembled beam-column node according to claim 1, characterized in that: A through hole (31) is horizontally provided in the middle of the overlapping section of the beam end side plate (3) and the column end side plate (4), and is coaxial. A pin (32) is horizontally passed through the openings of the upper and lower U-shaped energy dissipation plates (6), and both ends of the pin (32) pass through the through hole (31). The pin (32) is located on the inner side of the beam end side plate (3) and the outer side of the column end side plate (4), and is respectively sleeved with a nut (33) and fixedly connected with the pin by thread.

4. The assembled beam-column node according to claim 3, characterized in that: The beam end side plate (3) and the column end side plate (4) are symmetrically provided with two trapezoidal notches (41) on the upper and lower sides of the pin shaft (32); the beam end side plate (3) is radially provided with a plurality of arc-shaped bolt holes (42) at equal intervals on the outside of the through hole (31); the column end side plate (4) is radially provided with a plurality of circular bolt holes (43) at equal intervals on the outside of the through hole (31); the circular bolt holes (43) correspond to the arc-shaped bolt holes (42) one by one; bolts (44) are passed through the circular bolt holes (43); the bolts (44) pass through the arc-shaped bolt holes (42), are sleeved with nuts (33), and are fixedly connected with the nuts through threads.

5. The assembled beam-column joint according to claim 1, characterized in that: The two fixing plates (5) are respectively provided with end steel plates (51) vertically on one side close to the concrete column (1) and the concrete beam (2), the end steel plates (51) and the fixing plates (5) are parallel to each other, the two ends of the end steel plates (51) are fixedly connected to the beam end side plates (3) or the column end side plates (4), and a reinforcing plate (52) is horizontally provided between the end steel plates (51) and the fixing plates (5), and the reinforcing plate (52) is respectively fixedly connected to the end steel plates (51), the fixing plates (5) and the beam end side plates (3) or the column end side plates (4).

6. The assembled beam-column joint according to claim 5, characterized in that: A plurality of studs (61) are fixedly arranged horizontally at equal intervals on one side of the end steel plate (51) away from the reinforcing plate (52); a plurality of studs (61) are fixedly arranged horizontally at equal intervals on one side of the end steel plate (51) away from the reinforcing plate (52); the studs (61) located between the beam end side plates (3) are fixedly connected to the steel cage in the concrete beam (2); and the studs (61) located between the column end side plates (4) are fixedly connected to the concrete column (1).

7. The assembled beam-column joint according to claim 6, characterized in that: A column end restraining steel pipe (71) is sleeved on the outer side of the reinforcement cage of the concrete column (1), and two reserved slits (72) are vertically opened on the side of the column end restraining steel pipe (71) close to the concrete beam (2). The two reserved slits (72) are located on both sides of the reinforcement cage of the concrete column (1). The column end side plate (4) passes through the reserved slits (72) and extends into the interior of the column end restraining steel pipe (71). The end of the column end side plate (4) away from the beam end side plate (3) is fixedly connected to the inner wall of the column end restraining steel pipe (71). The column end side plate (4) is located inside the column end restraining steel pipe (71) and has a square hole (73) opened horizontally. A plurality of bolts (61) are fixedly provided at equal intervals on the inner wall of the column end restraining steel pipe (71). A plurality of bolts (61) are fixedly provided at equal intervals on the side of the column end restraining steel pipe (71) close to the end face steel plate (51).

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