Prefabricated concrete beam-column connecting joint

Abstract

The invention relates to the field of building structure engineering, and provides a prefabricated concrete beam column connecting joint which comprises a prefabricated concrete column, a prefabricated concrete beam, a first connecting assembly and a second connecting assembly. The prefabricated concrete column comprises a column main body and two butt joint parts, a connecting steel bar and two supporting steel plates are pre-buried in the column main body, and the two supporting steel plates are connected through the connecting steel bar; the two butt joint parts are arranged on the two opposite sides of the column body respectively, I-shaped steel is pre-buried in the butt joint parts, the I-shaped steel penetrates into the column body and is connected with the supporting steel plate, and containing grooves are formed in the butt joint parts; the end of the prefabricated concrete beam is arranged in the containing groove, a horizontal plate and a vertical plate are embedded in the prefabricated concrete beam, the vertical plate is arranged below the horizontal plate and connected with the horizontal plate, the top of the horizontal plate is connected with the supporting steel plate through a first connecting assembly, and the vertical plate is connected with the I-shaped steel through a second connecting assembly. The problems that a prefabricated concrete beam column cannot be rapidly assembled, and the connecting strength is poor are solved.

Description

Technical Field

[0001] The present application relates to the field of building structure engineering, and in particular to a precast concrete beam-column connection node. Background Art

[0002] Precast concrete beams and columns are an important part of the construction field, especially in modern prefabricated buildings. With the acceleration of urbanization, the demand for high-rise buildings and large public facilities is growing. Precast components are widely used in the construction industry due to their advantages such as fast construction speed and controllable quality. However, how to ensure reliable connection between precast components, especially to maintain structural stability and safety under natural disasters such as earthquakes, has always been the focus of attention of engineering and technical personnel.

[0003] At present, after the standardized prefabrication of precast concrete beams and columns in the factory, the precast beams and columns need to be spliced ​​on site. The beam-column joints are often cast-in-place, that is, there are still construction operations such as on-site formwork, steel bar tying, and concrete pouring in the node area. The amount of wet work on site is large, the construction period is long, and the construction difficulty and labor intensity are both high. Therefore, it is urgent to provide a precast concrete beam-column connection structure that can be quickly assembled and can meet the connection strength. Summary of the invention

[0004] In order to solve the problem that precast concrete beams and columns cannot be assembled quickly and have poor connection strength, the present application provides a precast concrete beam-column connection node.

[0005] The present application provides a precast concrete beam-column connection node adopts the following technical solution: A precast concrete beam-column connection node comprises a precast concrete column, a precast concrete beam, a first connection component and a second connection component.

[0006] The precast concrete column comprises a column body and two docking parts, wherein connecting steel bars and two supporting steel plates are pre-embedded in the column body, wherein the two supporting steel plates are parallel to each other and connected by the connecting steel bars; the two docking parts are respectively arranged on opposite sides of the column body along the spacing direction of the two supporting steel plates, wherein an I-beam is pre-embedded in the docking part, wherein the I-beam penetrates into the column body and is connected to the supporting steel plate closer thereto, and wherein a receiving groove for carrying the precast concrete beam is provided on the docking part.

[0007] The end of the precast concrete beam is arranged in the accommodating groove, and a horizontal plate and a vertical plate are pre-embedded in the precast concrete beam. The vertical plate is arranged below the horizontal plate and connected to the horizontal plate, the top of the horizontal plate is connected to the supporting steel plate through the first connecting component, and the vertical plate is connected to the I-beam through the second connecting component.

[0008] By adopting the above technical solution, precast concrete columns and precast concrete beams can be quickly assembled, and the precast concrete beam-column connection nodes have high structural strength and stability. Specifically: The assembly of the precast concrete column and the precast concrete beam can be achieved by placing the precast concrete beam in the receiving groove and then connecting the precast concrete column and the precast concrete beam through the first connecting component and the second connecting component.

[0009] The supporting steel plates and connecting steel bars in precast concrete columns can effectively enhance the overall stiffness and shear resistance of the columns, ensuring that they are not easily deformed or damaged when subjected to stress.

[0010] The I-beam embedded in the butt joint not only enhances the structural strength of the butt joint, but also improves the bending resistance of the entire node through connection with the supporting steel plate.

[0011] The design of the receiving groove enables the precast concrete beam to be stably embedded in the butt joint, increasing the connection reliability of the node.

[0012] The horizontal plate is connected to the supporting steel plate through the first connecting component, and the vertical plate is connected to the I-beam through the second connecting component, so that the supporting steel plate, connecting steel bars, I-beams, horizontal plates and vertical plates are connected into a whole, and the connection between beams and columns is tighter, further improving the shear resistance and seismic performance of the node.

[0013] Preferably, the first connecting assembly includes a first damper and two mounting seats.

[0014] One of the mounting seats is arranged on the supporting steel plate and passes through the column body, and the other mounting seat is arranged on the top of the horizontal plate and passes through the concrete beam.

[0015] The first damper is arranged obliquely, and its two opposite ends are hinged to the two mounting seats in a one-to-one correspondence.

[0016] By adopting the above technical solutions, the overall stability and seismic performance of the structure can be effectively improved. Specifically: The first damper is arranged to absorb and dissipate earthquake energy, thereby reducing the impact of earthquakes on the structure; The mounting base is connected to the supporting steel plate and the horizontal plate respectively instead of the concrete connection with the precast concrete column and the precast concrete beam, which can improve the connection strength and ensure the stability of the connection node.

[0017] Preferably, a steel cage is provided in the column body, the steel cage is located between the two supporting steel plates, and the connecting steel bars are passed through the steel cage and connected to the steel cage.

[0018] There is at least one connecting steel bar respectively connected to the two mounting seats.

[0019] By adopting the above technical scheme, the steel cage enhances the overall structural strength of the precast concrete column and improves its compressive performance; the connecting steel bars are passed through the steel cage and the connection with the steel cage ensures the stability and reliability of the connecting steel bars, further improving the overall stability of the node; the connection between the connecting steel bars and the mounting seat enhances the fixing effect of the first connecting component, so that the first damper can play a more effective shock-absorbing role, thereby improving the safety and seismic resistance of the node.

[0020] Preferably, the I-beams are pre-embedded in the side walls on both sides of the accommodating groove.

[0021] The butt joint is provided with a first through hole penetrating through the two I-beams, the precast concrete beam is provided with a second through hole penetrating through the vertical plate, and the first through hole and the second through hole are coaxially arranged.

[0022] The second connecting assembly includes a first anchor rod and two first limit nuts. The first anchor rod is inserted into the first through hole and the second through hole. The opposite ends of the first anchor rod are threadedly connected with the two first limit nuts in a one-to-one correspondence. The two first limit nuts are in a one-to-one correspondence with the opposite sides of the docking portion.

[0023] By adopting the above technical solution, a stable connection between the precast concrete beam and the precast concrete column can be ensured. Specifically: I-beams are pre-embedded in the side walls on both sides of the accommodating groove, which improves the structural strength of the butt joint and enhances the overall stability of the node.

[0024] A first through hole penetrating two I-beams is provided on the butt joint, and a second through hole penetrating the vertical plate is provided on the precast concrete beam. The first through hole and the second through hole are coaxially arranged to ensure that the first anchor rod can pass through smoothly, thereby achieving effective fixation of the beam and the column.

[0025] The first anchor rod is passed through the first through hole and the second through hole, and the opposite ends of the first anchor rod are threadedly connected with the two first limit nuts one by one, and the two first limit nuts are abutted against the opposite sides of the docking part one by one, which further enhances the reliability of the connection, prevents loosening or falling off of the beam-column connection, and improves the safety and durability of the node.

[0026] Preferably, the precast concrete beam-column connection node further includes a third connection component.

[0027] The third connecting assembly includes a second anchor rod, two connecting members and a second limiting nut, and the two connecting members are respectively located on opposite sides of the precast concrete beam.

[0028] The second anchor rod passes through the vertical plate, and its opposite ends pass through the precast concrete beam, the first anchor rod and the second anchor rod both pass through the two connecting members, and the opposite ends of the second anchor rod are threadedly connected with the two second limit nuts in a one-to-one correspondence.

[0029] By adopting the above technical solution, a third connection component is added to the precast concrete beam-column connection node, further enhancing the overall stability and seismic performance of the node. Furthermore, the first anchor rod and the second anchor rod are connected by a connecting piece, so that the second connection component and the third connection component are connected into a whole, further improving the connection strength.

[0030] Preferably, the I-beam comprises a top plate, a bottom plate and a vertical connecting plate, the top plate and the bottom plate are connected via the vertical connecting plate, and the bottom plates of two I-beams are connected and together form a lower cross plate.

[0031] The width of the accommodating groove gradually decreases from top to bottom.

[0032] First oblique support rods are embedded in the side walls on opposite sides of the accommodating groove, one end of the first oblique support rod is connected to the lower horizontal plate, and the other end is respectively connected to the lower end of the top plate and the vertical connecting plate.

[0033] By adopting the above technical solution, the bottom plates of the two I-beams are connected and together form the lower cross plate, further improving the stability and bearing capacity of the connection node. The design of the width of the receiving groove gradually decreases from top to bottom, which is convenient for the placement of precast concrete beams and can effectively prevent the precast concrete beams from sliding, thereby improving the safety of the connection node. At the same time, the shape of the receiving groove allows for a larger space in the docking part for setting the first diagonal brace, and the angle of the first diagonal brace is more flexible, which helps to enhance the strength of the docking part, effectively disperses the load, and improves the overall performance of the connection node.

[0034] Preferably, the precast concrete beam has overlapping portions located above the side walls on opposite sides of the accommodating groove.

[0035] The precast concrete beam-column connection node also includes a fourth connection component, which includes a third anchor rod and a third limiting nut. One end of the third anchor rod passes through the top plate and is connected to the vertical connecting plate, and the other end passes upward through the docking portion and passes through the overlapping portion. One end of the third anchor rod away from the vertical connecting plate is threadedly connected to the third limiting nut.

[0036] By adopting the above technical solution, the overlapped part of the precast concrete beam is located above the opposite side walls of the receiving groove, so that the opposite side walls of the receiving groove can share part of the weight of the precast concrete beam and reduce the force on the bottom wall of the receiving groove. The setting of the fourth connecting component can further improve the connection strength of the node. The third anchor rod passes through the top plate and is connected to the vertical connecting plate, so that the top plate can limit the third anchor rod, which increases the tensile strength of the third anchor rod.

[0037] Preferably, a first penetration channel is provided in the precast concrete column, and a second penetration channel communicating with the first penetration channel is provided in the vertical plate.

[0038] The precast concrete beam-column connection node further includes a steel strand, and the steel strand is passed through the first passing channel and the second passing channel.

[0039] By adopting the above technical solution, the steel strands can effectively transfer and disperse the load, enhance the structural strength of the nodes, and prevent breakage or slippage when subjected to stress, thereby ensuring the safety of the entire building structure. At the same time, the design also simplifies the construction process and improves construction efficiency.

[0040] Preferably, the precast concrete beam-column connection node further includes a reinforcing rib plate, which is embedded in the precast concrete column, is located below the I-beam, and is respectively connected to the lower cross plate and the supporting steel plate.

[0041] By adopting the above technical solution, the arrangement of the reinforcing ribs can significantly improve the structural strength and stability of the precast concrete column. The reinforcing ribs are pre-buried in the precast concrete column to prevent the reinforcing ribs from deforming and improve the aesthetics of the precast concrete column.

[0042] In summary, the present application includes at least one of the following beneficial technical effects: 1. The design of the receiving groove allows the precast concrete beam to be easily installed on the precast concrete column, which simplifies the operation steps on the construction site, reduces the construction time and labor intensity, and improves the construction efficiency; 2. The precast concrete columns and beams are stably connected through the first connection assembly and the second connection assembly, which effectively improves the connection reliability of the connection nodes and avoids the quality problems caused by the traditional welding or binding methods due to the influence of the construction environment; 3. The first damper in the first connection assembly can absorb and dissipate seismic energy, significantly improving the seismic performance of the connection node, especially in earthquake-prone areas, ensuring the overall safety and stability of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1It is the main view of the precast concrete beam-column connection node provided in this application.

[0044] Figure 2 It is a structural schematic diagram of the precast concrete beam-column connection node provided in this application.

[0045] Figure 3 This application provides Figure 1 Cross-sectional view at AA in the middle.

[0046] Figure 4 This application provides Figure 1 Cross-sectional view at the middle BB.

[0047] Description of reference numerals: 1. Precast concrete column; 11. Column body; 111. Connecting steel bars; 112. Supporting steel plate; 12. Butt joint; 121. I-beam; 1211. Top plate; 1212. Bottom plate; 1213. Vertical connecting plate; 122. Accommodating groove; 123. First diagonal brace; 124. Supporting rib plate; 13. First through-channel; 2. Precast concrete beam; 21. Horizontal plate; 22. Vertical plate; 221. Second through passage; 23. Second diagonal brace; 24. Overlapping portion; 3. First connecting assembly; 31. First damper; 32. Mounting seat; 4. Second connecting assembly; 41. First anchor rod; 42. First limiting nut; 5. Strengthen ribs; 6. third connecting assembly; 61. second anchor rod; 62. connecting piece; 63. second limiting nut; 7. Fourth connecting assembly; 71. Third anchor rod; 72. Third limiting nut; 8. Steel strand. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1 —4 Provide further details of this application.

[0049] like Figure 1 to Figure 2As shown, the embodiment of the present application discloses a precast concrete beam-column connection node, including a precast concrete column 1, a precast concrete beam 2, a first connection component 3 and a second connection component 4. The precast concrete column 1 includes a column body 11 and two docking parts 12, wherein a connecting steel bar 111 and two supporting steel plates 112 are pre-embedded in the column body 11, and the two supporting steel plates 112 are parallel to each other and connected by the connecting steel bar 111; the two docking parts 12 are respectively arranged on opposite sides of the column body 11 along the spacing direction of the two supporting steel plates 112, and an I-beam 121 is pre-embedded in the docking part 12, and the I-beam 121 penetrates into the column body 11 and is connected to the supporting steel plate 112 closer thereto, and a receiving groove 122 for carrying the precast concrete beam 2 is provided on the docking part 12.

[0050] The end of the precast concrete beam 2 is arranged in the accommodating groove 122, and a horizontal plate 21 and a vertical plate 22 are pre-embedded in the precast concrete beam 2. The vertical plate 22 is arranged below the horizontal plate 21 and connected to the horizontal plate 21. The top of the horizontal plate 21 is connected to the supporting steel plate 112 through the first connecting component 3, and the vertical plate 22 is connected to the I-beam 121 through the second connecting component 4.

[0051] Specifically, the arrangement of the receiving groove 122 enables the precast concrete beam 2 to be quickly placed on the docking portion 12 of the precast concrete column 1, thereby achieving rapid assembly. The I-beam 121 in the docking portion 12 is connected to the supporting steel plate 112, thereby improving the structural strength of the docking portion 12.

[0052] A steel cage (not shown) is provided in the column body 11 . The steel cage is located between two supporting steel plates 112 . The connecting steel bars 111 are passed through the steel cage and connected to the steel cage.

[0053] The horizontal plate 21 is connected to the supporting steel plate 112 through the first connecting component 3, and the vertical plate 22 is connected to the I-beam 121 through the second connecting component 4, so that the supporting steel plate 112, the connecting steel bars 111, the steel cage, the I-beam 121, the horizontal plate 21 and the vertical plate 22 are connected into a whole, further improving the shear resistance and seismic performance of the node.

[0054] The precast concrete beam-column connection node also includes a reinforcing rib 5 , which is embedded in the precast concrete column 1 . The reinforcing rib 5 is located below the I-beam 121 and is connected to the lower cross plate and the supporting steel plate 112 , respectively.

[0055] Specifically, the reinforcing ribs 5 can be made of high-strength steel with a thickness of 10mm-20mm. The reinforcing ribs 5 are fixed to the lower cross plate and the supporting steel plate 112 by welding or bolting. This structure allows the pressure applied by the precast concrete beam 2 to the docking portion 12 to be dispersed to the supporting steel plate 112, thereby improving the supporting strength of the docking portion 12. The reinforcing ribs 5 are hidden in the concrete of the precast concrete column 1, which not only prevents the reinforcing ribs 5 from being deformed, but also avoids the reinforcing ribs 5 from being exposed, thereby improving the aesthetics.

[0056] like Figure 1 to Figure 2 As shown, the first connecting assembly 3 includes a first damper 31 and two mounting seats 32 .

[0057] One of the mounting seats 32 is arranged on the supporting steel plate 112 and passes through the column body 11, and the other mounting seat 32 is arranged on the top of the horizontal plate 21 and passes through the concrete beam; the first damper 31 is arranged obliquely, and its opposite ends are hinged to the two mounting seats 32 in a one-to-one correspondence. This structural design enables the first damper 31 to effectively absorb vibration energy when vibration occurs, reduce stress concentration at the connection node, and improve the seismic performance of the node.

[0058] Furthermore, there is at least one connecting steel bar 111 connected to the two mounting seats 32 respectively, which enhances the fixing effect of the first connecting component 3, enables the first damper 31 to play a more effective shock-absorbing role, and improves the safety and earthquake resistance of the node.

[0059] like Figures 2 to 4 As shown, in some embodiments, I-beams 121 are pre-embedded in the side walls on both sides of the accommodating groove 122 .

[0060] A first through hole penetrating the two I-steels 121 is provided on the butt joint 12 , and a second through hole penetrating the vertical plate 22 is provided on the precast concrete beam 2 . The first through hole and the second through hole are coaxially arranged.

[0061] The second connecting component 4 includes a first anchor rod 41 and two first limiting nuts 42. The first anchor rod 41 is inserted into the first through hole and the second through hole. The opposite ends of the first anchor rod 41 are threadedly connected with the two first limiting nuts 42 in a one-to-one correspondence. The two first limiting nuts 42 are abutted against the opposite sides of the docking portion 12 in a one-to-one correspondence.

[0062] The I-beam 121 is connected to the vertical plate 22 by the first anchor rod 41, so that the connection between the precast concrete beam 2 and the precast concrete column 1 is more firmly established, and the shear resistance of the connection node is improved.

[0063] like Figure 1 to Figure 2 As shown, in some embodiments, the precast concrete beam-column connection node further includes a third connection component 6 .

[0064] The third connecting assembly 6 includes a second anchor rod 61 , two connecting members 62 and a second limiting nut 63 . The two connecting members 62 are respectively located at two opposite sides of the precast concrete beam 2 .

[0065] The second anchor rod 61 passes through the vertical plate 22 , and its opposite ends pass through the precast concrete beam 2 . The first anchor rod 41 and the second anchor rod 61 both pass through two connecting pieces 62 . The opposite ends of the second anchor rod 61 are threadedly connected to the two second limit nuts 63 in a one-to-one correspondence.

[0066] Specifically, the first anchor rod 41 and the second anchor rod 61 are connected by the connecting member 62, so that the second connecting assembly 4 and the third connecting assembly 6 are connected as a whole, which limits each other and further improves the connection strength between the precast concrete beam 2 and the precast concrete column 1. The connecting member 62 can be a connecting plate or a second damper. When the connecting member 62 is a second damper, it can absorb vibration energy and improve the anti-seismic effect of the node.

[0067] like Figure 3 to Figure 4 As shown, the I-beam 121 in the docking portion 12 includes a top plate 1211, a bottom plate 1212 and a vertical connecting plate 1213. The top plate 1211 and the bottom plate 1212 are connected via the vertical connecting plate 1213. The bottom plates 1212 of the two I-beams 121 are connected and together form a lower cross plate.

[0068] The width of the receiving groove 122 gradually decreases from top to bottom.

[0069] First oblique support rods 123 are embedded in the side walls on opposite sides of the accommodating groove 122 . One end of the first oblique support rod 123 is connected to the lower horizontal plate, and the other end is respectively connected to the lower end of the top plate 1211 and the vertical connecting plate 1213 .

[0070] Specifically, the lower horizontal plate is integrally formed, thereby improving the load-bearing capacity of the bottom wall of the receiving groove 122. Furthermore, the width of the receiving groove 122 gradually decreases from top to bottom, which is convenient for placing the precast concrete beam 2, and can effectively improve the fitting tightness between the precast concrete beam 2 and the docking portion 12, preventing the precast concrete beam 2 from sliding in the receiving groove 122.

[0071] The first diagonal brace 123 is provided so that a triangular support structure is formed between the first diagonal brace 123, the vertical connecting plate 1213 and the lower horizontal plate, which helps to improve the load-bearing capacity of the docking portion 12. One end of the first diagonal brace 123 is connected to the lower end of the top plate 1211 and the vertical connecting plate 1213, respectively, so as to prevent the top plate 1211 from bending to a certain extent.

[0072] Furthermore, the shape of the receiving groove 122 allows a larger space in the docking portion 12 for arranging the first diagonal brace 123. The angle of the first diagonal brace 123 is more flexible, which helps to enhance the strength of the docking portion 12, effectively disperses the load, and improves the overall performance of the connection node.

[0073] Furthermore, supporting ribs 124 are pre-buried in the side walls on opposite sides of the accommodating groove 122 . The supporting ribs 124 are perpendicular to the vertical connecting plates 1213 , and the supporting ribs 124 are respectively connected to the vertical connecting plates 1213 and the supporting steel plates 112 , thereby enhancing the structural strength of the docking portion 12 .

[0074] Furthermore, a second diagonal brace 23 is embedded in the precast concrete beam 2, and the second diagonal brace 23 is respectively connected to the horizontal plate 21 and the vertical plate 22, thereby forming a triangular support mechanism to improve the structural strength.

[0075] like Figure 1 As shown, in some embodiments, the precast concrete beam 2 has a lap joint 24 located above the opposite side walls of the receiving groove 122. The opposite side walls of the receiving groove 122 can share part of the weight of the precast concrete beam 2, reducing the burden on the lower cross plate.

[0076] like Figure 1 , Figure 3 and Figure 4 As shown, the precast concrete beam-column connection node also includes a fourth connection component 7, which includes a third anchor rod 71 and a third limiting nut 72. One end of the third anchor rod 71 passes through the top plate 1211 and is connected to the vertical connection plate 1213, and the other end passes upward through the docking portion 12 and passes through the lap portion 24. One end of the third anchor rod 71 away from the vertical connection plate 1213 is threadedly connected to the third limiting nut 72.

[0077] Specifically, a through hole corresponding to the third anchor rod 71 is provided on the lap joint 24 of the precast concrete beam 2. When the precast concrete beam 2 is placed, the through hole is aligned with the third anchor rod 71. After the third anchor rod 71 passes through the through hole, the third limiting nut 72 is threadedly connected to the third anchor rod 71, so that the third anchor rod 71 can limit the precast concrete beam 2 in the horizontal direction, and the third nut can limit the precast concrete beam 2 in the vertical direction.

[0078] Since the third anchor rod 71 passes through the top plate 1211 and is connected to the vertical connecting plate 1213, the third anchor rod 71 and the I-beam 121 form a whole, thereby improving the structural strength. The top plate 1211 can limit the third anchor rod 71, thereby improving the tensile performance of the third anchor rod 71 in the horizontal direction.

[0079] like Figure 1 to Figure 2As shown, in some embodiments, a first through-passage 13 is provided in the precast concrete column 1, and a second through-passage 221 communicating with the first through-passage 13 is provided in the vertical plate 22. The precast concrete beam-column connection node further includes a steel strand 8, which is passed through the first through-passage 13 and the second through-passage 221.

[0080] Specifically, the first penetration channel 13 may be formed by pre-buried steel pipes that penetrate through the support steel plate 112 and are connected to the support steel plate 112 .

[0081] The diameter of the steel strand 8 can be 10 mm to 15 mm. The two ends of the steel strand 8 are connected to the precast concrete column 1 and the precast concrete beam 2 respectively by welding or anchoring. When the connection node is stressed, the steel strand 8 can absorb and disperse the stress through its own elastic deformation, reducing the stress concentration at the connection node and improving the seismic performance of the connection node. The setting of the steel strand 8 also enables the node to have a certain self-reset function.

Claims

1. A precast concrete beam-column connection node, characterized in that: include: Precast concrete column (1), precast concrete beam (2), a first connection component (3) and a second connection component (4); The precast concrete column (1) comprises a column body (11) and two butt joints (12); a connecting steel bar (111) and two supporting steel plates (112) are pre-embedded in the column body (11); the two supporting steel plates (112) are parallel to each other and connected via the connecting steel bar (111); the two butt joints (12) are respectively arranged at opposite sides of the column body (11) along the spacing direction of the two supporting steel plates (112); an I-beam (121) is pre-embedded in the butt joints (12); the I-beam (121) penetrates into the column body (11) and is connected to the supporting steel plate (112) closer thereto; and a receiving groove (122) for carrying the precast concrete beam (2) is provided on the butt joints (12); The end of the precast concrete beam (2) is arranged in the accommodating groove (122), and a horizontal plate (21) and a vertical plate (22) are pre-embedded in the precast concrete beam (2), the vertical plate (22) is arranged below the horizontal plate (21) and connected to the horizontal plate (21), the top of the horizontal plate (21) is connected to the supporting steel plate (112) via the first connecting assembly (3), and the vertical plate (22) is connected to the I-beam (121) via the second connecting assembly (4).

2. The precast concrete beam-column connection node according to claim 1, characterized in that: The first connection assembly (3) comprises a first damper (31) and two mounting seats (32); One of the mounting seats (32) is arranged on the supporting steel plate (112) and passes through the column body (11), and the other mounting seat (32) is arranged on the top of the horizontal plate (21) and passes through the concrete beam; The first damper (31) is arranged tilted, and its two opposite ends are hingedly connected to the two mounting seats (32) in a one-to-one correspondence.

3. The precast concrete beam-column connection node according to claim 2, characterized in that: A steel cage is provided in the column body (11), the steel cage is located between the two supporting steel plates (112), and the connecting steel bars (111) are passed through the steel cage and connected to the steel cage; There is at least one connecting steel bar (111) respectively connected to the two mounting seats (32).

4. The precast concrete beam-column connection node according to claim 1, characterized in that: The I-beam (121) is pre-buried in the side walls on both sides of the accommodating groove (122); The butt joint (12) is provided with a first through hole penetrating the two I-beams (121); the precast concrete beam (2) is provided with a second through hole penetrating the vertical plate (22); the first through hole and the second through hole are coaxially arranged; The second connection assembly (4) comprises a first anchor rod (41) and two first limiting nuts (42), wherein the first anchor rod (41) is inserted into the first through hole and the second through hole, and the opposite ends of the first anchor rod (41) are threadedly connected to the two first limiting nuts (42) in a one-to-one correspondence, and the two first limiting nuts (42) are in a one-to-one correspondence with the opposite sides of the docking portion (12).

5. The precast concrete beam-column connection node according to claim 4, characterized in that: The precast concrete beam-column connection node further comprises a third connection component (6); The third connection assembly (6) comprises a second anchor rod (61), two connection members (62) and a second limit nut (63), wherein the two connection members (62) are respectively located on two opposite sides of the precast concrete beam (2); The second anchor rod (61) passes through the vertical plate (22), and its opposite ends pass through the precast concrete beam (2), the first anchor rod (41) and the second anchor rod (61) both pass through the two connecting members (62), and the opposite ends of the second anchor rod (61) are threadedly connected to the two second limit nuts (63) in a one-to-one correspondence.

6. The precast concrete beam-column connection node according to claim 4, characterized in that: The I-beam (121) comprises a top plate (1211), a bottom plate (1212) and a vertical connecting plate (1213); the top plate (1211) and the bottom plate (1212) are connected via the vertical connecting plate (1213); the bottom plates (1212) of the two I-beams (121) are connected and together form a lower transverse plate; The width of the accommodating groove (122) gradually decreases from top to bottom; First oblique support rods (123) are pre-buried in the side walls on opposite sides of the accommodating groove (122); one end of the first oblique support rod (123) is connected to the lower horizontal plate, and the other end is respectively connected to the lower end of the top plate (1211) and the vertical connecting plate (1213).

7. The precast concrete beam-column connection node according to claim 6, characterized in that: The precast concrete beam (2) has a lap joint (24) located above the side walls on opposite sides of the accommodating groove (122); The precast concrete beam-column connection node further comprises a fourth connection component (7), the fourth connection component (7) comprising a third anchor rod (71) and a third limit nut (72), one end of the third anchor rod (71) passing through the top plate (1211) and being connected to the vertical connection plate (1213), and the other end passing upwardly out of the docking portion (12) and passing through the lap joint (24), and one end of the third anchor rod (71) away from the vertical connection plate (1213) being threadedly connected to the third limit nut (72).

8. The precast concrete beam-column connection node according to claim 1, characterized in that: The precast concrete column (1) is provided with a first penetration channel (13), and the vertical plate (22) is provided with a second penetration channel (221) which is in communication with the first penetration channel (13); The precast concrete beam-column connection node further comprises a steel strand (8), wherein the steel strand (8) is passed through the first passing channel (13) and the second passing channel (221).

9. The precast concrete beam-column connection node according to claim 6, characterized in that: The precast concrete beam-column connection node further comprises a reinforcing rib plate (5), wherein the reinforcing rib plate (5) is pre-buried in the precast concrete column (1), the reinforcing rib plate (5) is located below the I-beam (121), and is respectively connected to the lower transverse plate and the supporting steel plate (112).

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