A prefabricated beam-column connection node and construction method

Abstract

The present invention provides an assembled beam-column connection node and a construction method, including a prefabricated column and a prefabricated beam; the prefabricated column is provided with two groups of first connecting members extending along the length direction of the prefabricated column; the first connecting member includes a first connecting piece and a second connecting piece; the first connecting piece and the second connecting piece are vertically connected to form an L-shaped groove; the two groups of L-shaped grooves are arranged back to back; the prefabricated beam is provided with two groups of second connecting members extending along the length direction of the prefabricated beam; the second connecting member includes a third connecting piece and two fourth connecting pieces; the two fourth connecting pieces are respectively vertically connected to the two ends of the third connecting piece to form a groove; the two groups of grooves are arranged back to back; the groove is embedded in the L-shaped groove to connect the prefabricated beam with the prefabricated column; at the same time, the technical solution also provides an assembled beam-column construction method. The above-mentioned assembled beam-column connection node has a simple assembly process; the connection and contact area of ​​the first connecting piece and the second connecting piece are large, which can effectively improve the connection strength and force effect of the connection node.

Description

Technical Field

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

[0002] With the rapid development of my country's economy, people's living standards are constantly improving, and the requirements for buildings are increasing. At present, the industry widely promotes prefabricated and assembled concrete structures, steel structures and other building systems suitable for industrialized production, accelerates the development of prefabrication and assembly technologies for construction projects, and improves the level of integration of building industrialization technology. Since assembled structural components are mainly processed in workshops and factories, compared with on-site cast concrete structures, they have less work, shorter construction periods, and lower costs, which is conducive to the promotion of building industrialization. However, the node connection strength of prefabricated and assembled concrete structures is currently low, the force is poor, the connection form is complex, and most of the shock absorption effects are not ideal, so the practicality is not high. Summary of the invention

[0003] Based on this, in order to solve the problems of low connection strength, poor force effect and complex installation of assembled beam-column connection nodes, the present invention provides an assembled beam-column connection node, and its specific technical solution is as follows:

[0004] A prefabricated beam-column connection node, comprising a prefabricated column and a prefabricated beam; the prefabricated column is provided with two groups of first connecting members extending along the length direction of the column body of the prefabricated column; the first connecting members include a first connecting piece and a second connecting piece; each of the first connecting pieces is in the same plane and is arranged on the side wall of the prefabricated column; each of the second connecting pieces is parallel to each other and is located on the same side of the plane where the first connecting piece is located; the first connecting piece and the second connecting piece in the same group are vertically connected to form an L-shaped groove; the two L-shaped grooves are arranged back to back; the prefabricated beam is provided with two groups of second connecting members extending along the length direction of the beam body of the prefabricated beam; each of the second connecting members includes a third connecting piece and two fourth connecting pieces; the two fourth connecting pieces are respectively vertically connected to the two ends of the third connecting piece to form a groove; each of the third connecting pieces is parallel to each other; the two fourth connecting pieces of each second connecting member are respectively connected to the top surface and the bottom surface of the prefabricated beam; the two groups of the grooves are arranged back to back; the groove is embedded in the L-shaped groove to connect the prefabricated beam with the prefabricated column.

[0005] The above-mentioned assembled beam-column connection node can be installed only by embedding the groove in the L-shaped groove, and the assembly process is simple, quick and convenient; at the same time, the first connecting member and the second connecting member each have two groups, and by increasing the contact area of ​​the connection node, not only the connection strength of the connection node can be improved, but also it is beneficial to disperse the force and improve the force effect.

[0006] Furthermore, the prefabricated column is provided with a plurality of column stirrups; the plurality of column stirrups are arranged at equal intervals along the length direction of the first connecting piece and are sleeved on the outer circumference of the two groups of the first connecting pieces; the prefabricated beam is provided with a plurality of beam stirrups; the plurality of beam stirrups are arranged at equal intervals along the length direction of the second connecting piece and are sleeved on the outer circumference of the two groups of the first connecting pieces.

[0007] Furthermore, the second connecting piece is connected to the third connecting piece via a first fastener.

[0008] Furthermore, the first connecting piece is connected to the fourth connecting piece via a second fastener.

[0009] Furthermore, two groups of anchors are provided in the prefabricated column; the two groups of anchors are matched with the two groups of the second connecting members; and the anchors are connected to the second connecting members.

[0010] Furthermore, a third connecting member is provided on the prefabricated column; the third connecting member includes a vertically arranged fifth connecting plate and a horizontally arranged sixth connecting plate; the two ends of the fifth connecting plate are respectively connected to the first connecting plates of the two groups of the first connecting members; the two ends of the sixth connecting plate are respectively connected to the second connecting plates of the two groups of the first connecting members; the sixth connecting plate is provided with a first damper; and the bottom end of the first damper is connected to the sixth connecting plate.

[0011] Furthermore, a fourth connecting piece is provided on the prefabricated beam; the fourth connecting piece includes a vertically arranged seventh connecting piece and a horizontally arranged eighth connecting piece; the seventh connecting piece is provided on the prefabricated beam and both ends of the seventh connecting piece are respectively connected to the second connecting piece; the eighth connecting piece is vertically connected to an end of the seventh connecting piece away from the prefabricated column; a second damper is provided on the seventh connecting piece; and the bottom end of the second damper is connected to the seventh connecting piece.

[0012] Furthermore, the other end of the first damper is connected to the eighth connecting piece.

[0013] Furthermore, the other end of the second damper is connected to the fifth connecting plate.

[0014] Furthermore, the present invention also provides a method for constructing an assembled beam-column, comprising the following steps: (1) a prefabricated column is provided with a column longitudinal reinforcement, a first connecting piece, a column stirrup, an anchor and a third connecting piece, the column stirrup is sleeved over the column longitudinal reinforcement and the first connecting piece to form a column frame, and the column frame, the anchor and the third connecting piece are integrally cast to form a column body of the prefabricated column; a section of the first connecting piece is reserved and arranged outside the column body; (2) a prefabricated beam is provided with a beam longitudinal reinforcement, a second connecting piece, a beam stirrup and a fourth connecting piece, the beam stirrup is sleeved over the beam longitudinal reinforcement and the second connecting piece to form a beam frame, and the beam frame and the fourth connecting piece are integrally cast and formed. The precast beam body is cast and formed; a section of the second connecting member is reserved and arranged outside the beam body; (3) the first damper is arranged on the third connecting member, and the second damper is arranged on the fourth connecting member; (4) the precast beam is hoisted so that one end of the second connecting member located outside the beam body is engaged with one end of the first connecting member located outside the column body, the second connecting piece is connected to the third connecting piece, the first connecting piece is connected to the fourth connecting piece, the anchor is connected to the second connecting piece, the first damper is connected to the fourth connecting piece, and the second damper is connected to the third connecting piece, so that the precast column and the precast beam are connected together.

[0015] The above-mentioned construction method completes the main structure of the prefabricated column and the prefabricated beam in the factory. At the construction site, only the first connecting member and the second connecting member, the anchor member and the second connecting member, the first damper and the fourth connecting member, and the second damper and the third connecting member need to be installed to complete the assembly, and the construction is simple. At the same time, the contact area between the first connecting member and the second connecting member is increased, so that the connection strength and the force strength of the connection node are improved. By adding the anchor member, the connection strength of the connection node can be further improved, making the structure more stable and the connection more secure. The first damper and the second damper can effectively buffer vibrations and consume seismic energy, thereby improving the seismic performance of the beams and columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 It is one of the structural schematic diagrams of a prefabricated column of an assembled beam-column connection node in one embodiment of the present invention;

[0018] Figure 2 It is one of the structural schematic diagrams of a prefabricated beam of an assembled beam-column connection node in one embodiment of the present invention;

[0019] Figure 3 This is a second structural schematic diagram of a prefabricated column of an assembled beam-column connection node in one embodiment of the present invention;

[0020] Figure 4 This is a third structural schematic diagram of a prefabricated column of an assembled beam-column connection node in one embodiment of the present invention;

[0021] Figure 5 This is a second structural schematic diagram of a prefabricated beam of an assembled beam-column connection node in one embodiment of the present invention;

[0022] Figure 6 It is a perspective structural schematic diagram of a prefabricated column of an assembled beam-column connection node in one embodiment of the present invention;

[0023] Figure 7 It is a perspective structural schematic diagram of a prefabricated beam of an assembled beam-column connection node in one embodiment of the present invention;

[0024] Figure 8 It is a structural schematic diagram of a first damper of an assembled beam-column connection node in one embodiment of the present invention;

[0025] Fig. 9 It is a schematic structural diagram of a second damper of an assembled beam-column connection node in one embodiment of the present invention.

[0026] Explanation of the accompanying drawings: 1. precast column; 2. precast beam; 3. first connecting plate; 4. second connecting plate; 5. column stirrups; 6. third connecting plate; 7. fourth connecting plate; 8. beam stirrups; 9. buffer spring; 10. first offset plate; 11. U-shaped anchor steel bar; 12. fifth connecting plate; 13. sixth connecting plate; 14. first damper; 15. seventh connecting plate; 16. eighth connecting plate; 17. second damper. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0031] like Figure 1 — Fig. 9 As shown, an assembled beam-column connection node in one embodiment of the present invention comprises a prefabricated column 1 and a prefabricated beam 2; the prefabricated column 1 is provided with two groups of first connecting members extending along the length direction of the column body of the prefabricated column 1; the first connecting members include a first connecting piece 3 and a second connecting piece 4; each of the first connecting pieces 3 is in the same plane and is arranged on the side wall of the prefabricated column 1; each of the second connecting pieces 4 is parallel to each other and is located on the same side of the plane where the first connecting pieces 3 are located; the first connecting pieces 3 and the second connecting pieces 4 in the same group are vertically connected to form an L-shaped groove; the two The L-shaped grooves are arranged back to back; two groups of second connecting members extending along the length direction of the beam body of the precast beam 2 are provided on the precast beam 2; each of the second connecting members includes a third connecting piece 6 and two fourth connecting pieces 7; the two fourth connecting pieces 7 are respectively vertically connected to the two ends of the third connecting piece 6 to form a groove; each of the third connecting pieces 6 is parallel to each other; the two fourth connecting pieces 7 of each second connecting member are respectively connected to the top surface and the bottom surface of the precast beam 2; the two groups of the grooves are arranged back to back; the grooves are embedded in the L-shaped grooves to connect the precast beam 2 with the precast column 1.

[0032] In one embodiment, the prefabricated column 1 is provided with a plurality of column stirrups 5; the plurality of column stirrups 5 are arranged at equal intervals along the length direction of the first connecting member and are sleeved on the outer periphery of the two groups of the first connecting members; the prefabricated beam 2 is provided with a plurality of beam stirrups 8; the plurality of beam stirrups 8 are arranged at equal intervals along the length direction of the second connecting member and are sleeved on the outer periphery of the two groups of the first connecting members.

[0033] In one of the embodiments, the prefabricated column 1 also includes column longitudinal reinforcement; the column stirrups 5 bundle the first connecting piece and the column longitudinal reinforcement into shape and pour concrete to form the column body of the prefabricated column 1; the prefabricated beam 2 also includes beam longitudinal reinforcement; the beam stirrups 8 bundle the second connecting piece and the beam longitudinal reinforcement into shape and pour concrete to form the beam body of the prefabricated beam 2; the structures of the prefabricated column 1 and the prefabricated beam 2 are stable, and the force transmission mechanism is clear and reasonable, so that the force effect of the prefabricated column 1 and the prefabricated beam 2 is improved; the processing and manufacturing processes of the prefabricated column 1 and the prefabricated beam 2 are all completed in the factory, and the installation can be completed on site by only embedding the slot in the L-shaped slot, and the assembly process is simple, quick and convenient; at the same time, the first connecting piece and the second connecting piece are each in two groups, and by increasing the contact area of ​​the connection node, not only the connection strength of the connection node can be improved, but also it is beneficial to disperse the force and improve the force effect.

[0034] In one embodiment, the second connecting piece 4 is connected to the third connecting piece 6 via a first fastener.

[0035] In one embodiment, the second connecting piece 4 is provided with a first through hole; the third connecting piece 6 is provided with a second through hole adapted to the first through hole; the second connecting piece 4 is connected to the third connecting piece 6 by the first fastener passing through the first through hole and the second through hole in sequence.

[0036] In one embodiment, the first connecting piece 3 is connected to the fourth connecting piece 7 via a second fastener.

[0037] In one embodiment, two groups of third through holes are provided on the first connecting piece 3; a fourth through hole matched with the third through hole is provided on the fourth connecting piece 7; the first connecting piece 3 is connected to the fourth connecting piece 7 by the second fastener passing through the third through hole and the fourth through hole in sequence, thereby increasing the connection strength between the first connecting piece and the second connecting piece.

[0038] In one embodiment, the first fastener and the second fastener include bolts or nuts, which are easy to use, firmly connected and highly replaceable.

[0039] In one of the embodiments, the first connecting piece 3 is connected to the fourth connecting piece 7 through an angle steel connector; one end of the angle steel connector is connected to the first connecting piece 3; the other end of the angle steel connector is connected to the fourth connecting piece 7; the angle steel connector can effectively improve the connection strength between the first connecting piece 3 and the fourth connecting piece 7. When an earthquake occurs, the angle steel connector can bend and deform at the corner to consume energy, thereby consuming the energy in the earthquake and protecting the connection node.

[0040] In one embodiment, two groups of anchors are further provided in the prefabricated column 1; the two groups of anchors are matched with the two groups of the second connecting members; and the anchors are connected to the second connecting members.

[0041] In one embodiment, the anchoring piece includes a U-shaped anchoring steel bar 11 with an opening toward the top end of the prefabricated column 1; the top end of the U-shaped anchoring steel bar 11 is arranged outside the column of the prefabricated column 1; the fourth connecting piece 7 of the second connecting piece is provided with a fifth through hole compatible with the U-shaped anchoring steel bar 11; the second connecting piece is connected to the U-shaped anchoring steel bar 11 through the fifth through hole, thereby further improving the connection strength of the connection node and making the connection structure more firm and stable; in the case of convenient operation, the U-shaped anchoring steel bar 11 is connected to the column hoop reinforcement 5 through the anchoring reinforcement bar to improve the positioning stability of the U-shaped anchoring steel bar 11; both ends of the U-shaped anchoring steel bar 11 are provided with external threads; the nut has an internal thread; the two ends of the U-shaped anchoring steel bar 11 are tightened with the nut after passing through the fifth through hole, making the connection more firm.

[0042] In one embodiment, a third connecting member is provided on the prefabricated column 1; the third connecting member includes a vertically arranged fifth connecting plate 12 and a horizontally arranged sixth connecting plate 13; the two ends of the fifth connecting plate 12 are respectively connected to the first connecting plates 3 of two groups of the first connecting members; the two ends of the sixth connecting plate 13 are respectively connected to the second connecting plates 4 of two groups of the first connecting members; the sixth connecting plate 13 is provided with a first damper 14; the bottom end of the first damper 14 is connected to the sixth connecting plate 13.

[0043] In one embodiment, a fourth connecting member is provided on the prefabricated beam 2; the fourth connecting member includes a vertically arranged seventh connecting plate 15 and a horizontally arranged eighth connecting plate 16; the seventh connecting plate 15 is provided on the prefabricated beam 2 and both ends of the seventh connecting plate 15 are respectively connected to the second connecting member; the eighth connecting plate 16 is vertically connected to an end of the seventh connecting plate 15 away from the prefabricated column 1; a second damper 17 is provided on the seventh connecting plate 15; and the bottom end of the second damper 17 is connected to the seventh connecting plate 15.

[0044] In one embodiment, the other end of the first damper 14 is connected to the eighth connecting piece 16 .

[0045] In one embodiment, the other end of the second damper 17 is connected to the fifth connecting plate 12 .

[0046] In one embodiment, a certain distance is reserved between the top of the first damper 14 and the top of the first connecting member to facilitate the installation of the first damper 14 and the eighth connecting piece 16; a certain distance is reserved between the second damper 17 and the edge of the second connecting member to facilitate the connection of the second damper 17 and the third connecting member; the first damper 14 and the second damper 17 are arranged in partitions with the first connecting member and the second connecting member, which is not only convenient for installation, but also prevents mutual influence between the connecting members and the dampers, and prevents interference;

[0047] Earthquake damage research shows that reinforced concrete frame nodes are prone to different degrees of damage under earthquake action, mainly manifested as shear failure in the core area of ​​the node and damage to the steel bar anchorage; by setting the first damper 14, the vertical vibration can be effectively mitigated; by setting the second damper 17, the horizontal vibration energy can be effectively mitigated, thereby avoiding the displacement of the precast beam 2 or the precast column 1; at the same time, when the earthquake intensity is large and relative displacement occurs between the precast beam 2 and the precast column 1, the first damper 14 and the second damper 17 are also The first damper 14 and the second damper 17 are deformed to form an energy-absorbing system with the precast beam 2 and the precast column 1. The consumption of earthquake energy by the first damper 14 and the second damper 17 can effectively improve the seismic resistance of the precast column 1 and the precast beam 2, so that the relative positions of the beams and columns after the earthquake can basically be restored to the pre-earthquake state, thereby improving the self-resetting ability of the beams and columns, thereby improving the seismic resistance of the frame structure; the number and specifications of the first damper 14 and the second damper 17 can be reasonably selected or added as needed to further improve the seismic resistance of the beam-column connection node.

[0048] In one embodiment, the first damper 14 includes a sleeve and a buffer rod; the buffer rod is arranged in the sleeve; an elastic material layer is provided between the buffer rod and the sleeve; the elastic material layer includes one of sponge, rubber or silicone; the inner diameter of the sleeve is larger than the outer diameter of the elastic material layer, so that a certain space is reserved between the elastic material layer and the inner wall of the sleeve to accommodate the deformation of the elastic material layer during the extrusion process; both ends of the buffer rod are arranged outside the sleeve and have external threads; the first damper 14 is installed by connecting the nut with the thread; when an earthquake occurs, the first damper 14 can produce extrusion deformation through the elastic material layer to consume the earthquake energy, and the elastic material layer will pull back the connected first connecting member and the second connecting member due to its strong recovery property, so that the deformed beam column returns to its original position.

[0049] In one embodiment, the second damper 17 includes a buffer spring 9, a pull rod, a first offset plate 10 and a second offset plate; the buffer spring 9 is sleeved on the pull rod, one end of the pull rod is connected to the first offset plate 10, and the other end of the pull rod is connected to the second offset plate; the first offset plate 10 is connected to the fifth connecting plate 12 through a third fastener; the second offset plate is connected to the seventh connecting plate 15 through a fourth fastener; the third fastener and the fourth fastener include bolts or nuts; the surfaces of the first offset plate 10 and the second offset plate are covered with uneven rolling patterns. The second damper 17 is connected to the fourth connecting member and the third connecting member respectively through a threaded assembly; when an earthquake occurs, the buffer spring 9 converts the received energy into elastic potential energy to buffer the vibration, and the uneven rolling patterns on each of the offset plates increase the friction between the second damper 17 and each of the connecting members, converting the received energy into heat to further consume the earthquake energy, so that the impact energy generated by the earthquake is offset to the maximum extent; the buffer spring 9 has self-recovery and will pull back the connected fourth connecting member and the third connecting member to restore the deformed beam column to its original position.

[0050] In one of the embodiments, the present invention further provides a method for constructing an assembled beam-column, comprising the following steps: (1) a prefabricated column 1 is provided with a column longitudinal reinforcement, a first connecting piece, a column stirrup 5, an anchor and a third connecting piece, the column stirrup 5 is sleeved over the column longitudinal reinforcement and the first connecting piece to form a column frame, and the column frame, the anchor and the third connecting piece are integrally cast to form a column body of the prefabricated column 1; a section of the first connecting piece is reserved outside the column body; (2) a prefabricated beam 2 is provided with a beam longitudinal reinforcement, a second connecting piece, a beam stirrup 8 and a fourth connecting piece, the beam stirrup 8 is sleeved over the beam longitudinal reinforcement and the second connecting piece to form a beam frame, and the beam frame and the fourth connecting piece are integrally cast. The precast beam 2 is formed into a shape; a section of the second connecting member is reserved and arranged outside the beam body; (3) the first damper 14 is arranged on the third connecting member, and the second damper 17 is arranged on the fourth connecting member; (4) the precast beam 2 is hoisted so that one end of the second connecting member located outside the beam body is engaged with one end of the first connecting member located outside the column body, the second connecting piece 4 is connected to the third connecting piece 6, the first connecting piece 3 is connected to the fourth connecting piece 7, the anchor is connected to the second connecting piece, the first damper 14 is connected to the fourth connecting piece, and the second damper 17 is connected to the third connecting piece, so that the precast column 1 and the precast beam 2 are connected together.

[0051] The column longitudinal reinforcement and the first connecting member are both extended along the length direction of the column of the precast column 1; the column stirrups 5 are arranged at equal intervals along the length direction of the first connecting member, and a plurality of the column stirrups 5 are sleeved on the outer peripheries of two groups of the first connecting members and the column longitudinal reinforcement; the beam longitudinal reinforcement and the second connecting member are both extended along the length direction of the beam of the precast beam 2; the beam stirrups 8 are arranged at equal intervals along the length direction of the second connecting member, and a plurality of the beam stirrups 8 are sleeved on the outer peripheries of two groups of the second connecting members and the beam longitudinal reinforcement; the anchor is arranged in the precast column 1; the third connecting member is arranged on the precast column 1; the fourth connecting member is arranged on the precast beam 2;

[0052] The above-mentioned construction method completes the main structure of the prefabricated column 1 and the prefabricated beam 2 in the factory. At the construction site, only the first connecting member and the second connecting member, the anchor member and the second connecting member, the first damper 14 and the fourth connecting member, the second damper 17 and the third connecting member need to be installed to complete the assembly, and the construction is simple. At the same time, the contact area between the first connecting member and the second connecting member is increased, so that the connection strength and the force strength of the connection node are improved. The connection strength of the connection node can be further improved by adding the anchor member, making the structure more stable and the connection more firm. The connection of each connecting member through the stirrups can further improve the stability of the overall structure, thereby improving the force strength. The first damper 14 and the second damper 17 can effectively buffer vibrations and consume seismic energy, thereby improving the seismic performance of the beam and column.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An assembled beam-column connection node, characterized in that: Includes precast columns and precast beams; The prefabricated column is provided with two groups of first connecting members extending along the length direction of the column body of the prefabricated column; The first connecting member includes a first connecting piece and a second connecting piece; Each of the first connecting pieces is in the same plane and is arranged on the side wall of the prefabricated column; The second connecting pieces are parallel to each other and are located on the same side of the plane where the first connecting pieces are located; The first connecting piece and the second connecting piece in the same group are vertically connected to form an L-shaped groove; The two L-shaped grooves are arranged back to back; The prefabricated beam is provided with two groups of second connecting members extending along the length direction of the beam body of the prefabricated beam; Each of the second connecting members includes a third connecting piece and two fourth connecting pieces; The two fourth connecting pieces are respectively vertically connected to two ends of the third connecting piece to form slots; The third connecting pieces are parallel to each other; The two fourth connecting pieces of each of the second connecting members are respectively connected to the top surface and the bottom surface of the prefabricated beam; The two groups of slots are arranged in back-to-back orientation; The slot is embedded in the L-shaped slot to connect the precast beam to the precast column; A plurality of column stirrups are provided in the prefabricated column; A plurality of column stirrups are arranged at equal intervals along the length direction of the first connecting member and sleeved on the outer circumference of the two groups of the first connecting members; The prefabricated beam is provided with a plurality of beam stirrups; A plurality of beam stirrups are arranged at equal intervals along the length direction of the second connecting member and sleeved on the outer periphery of the two groups of the second connecting members; The second connecting piece is connected to the third connecting piece via a first fastener; The first connecting piece is connected to the fourth connecting piece via a second fastener; Two sets of anchors are also provided in the prefabricated column; The two groups of anchoring pieces are matched with the two groups of the second connecting pieces; The anchor is connected to the second connecting member; The prefabricated column is provided with a third connecting piece; The third connecting member includes a fifth connecting piece arranged vertically and a sixth connecting piece arranged horizontally; Two ends of the fifth connecting piece are respectively connected to the first connecting pieces of the two groups of the first connecting members; Two ends of the sixth connecting piece are respectively connected to the second connecting pieces of the two groups of the first connecting members; The sixth connecting piece is provided with a first damper; The bottom end of the first damper is connected to the sixth connecting piece; The prefabricated beam is provided with a fourth connecting piece; The fourth connecting member includes a seventh connecting piece arranged vertically and an eighth connecting piece arranged horizontally; The seventh connecting piece is arranged on the prefabricated beam and both ends of the seventh connecting piece are respectively connected to the second connecting member; The eighth connecting piece is vertically connected to an end of the seventh connecting piece away from the prefabricated column; The seventh connecting plate is provided with a second damper; The bottom end of the second damper is connected to the seventh connecting piece; The first damper comprises a sleeve and a buffer rod; the buffer rod is arranged in the sleeve; an elastic material layer is arranged between the buffer rod and the sleeve; the elastic material layer comprises one of sponge, rubber or silicone; the inner diameter of the sleeve is larger than the outer diameter of the elastic material layer, so that a certain space is reserved between the elastic material layer and the inner wall of the sleeve to meet the deformation of the elastic material layer during the extrusion process; both ends of the buffer rod are arranged outside the sleeve and have external threads; the first damper is installed by connecting the nut with the thread; when an earthquake occurs, the first damper can produce extrusion deformation through the elastic material layer to consume the earthquake energy, and the elastic material layer will pull back the connected first connecting member and the second connecting member due to its strong recovery, so that the deformed beam column returns to its original position; The second damper comprises a buffer spring, a pull rod, a first offset plate and a second offset plate; the buffer spring is sleeved on the pull rod, one end of the pull rod is connected to the first offset plate, and the other end of the pull rod is connected to the second offset plate; the first offset plate is connected to the fifth connecting plate through a third fastener; The second offset plate is connected to the seventh connecting plate through a fourth fastener; the third fastener and the fourth fastener include bolts or nuts; the surfaces of the first offset plate and the second offset plate are covered with uneven rolling patterns; the second damper is respectively connected to the fourth connecting member and the third connecting member through a threaded assembly.

2. The assembled beam-column connection node according to claim 1, characterized in that: The other end of the first damper is connected to the eighth connecting piece.

3. A method for constructing an assembled beam-column connection node according to any one of claims 1 to 2, characterized in that: The following steps are involved: (1) A column longitudinal reinforcement, a first connecting piece, a column stirrup, an anchor and a third connecting piece are provided in the prefabricated column, the column stirrup is sleeved outside the column longitudinal reinforcement and the first connecting piece to form a column frame, and the column frame, the anchor and the third connecting piece are integrally cast to form a column body of the prefabricated column; a section of the first connecting piece is reserved and arranged outside the column; (2) The precast beam is provided with beam longitudinal reinforcement, a second connecting piece, beam stirrups and a fourth connecting piece, the beam stirrups are sleeved outside the beam longitudinal reinforcement and the second connecting piece to form a beam frame, and the beam frame and the fourth connecting piece are integrally cast to form the beam body of the precast beam; a section of the second connecting piece is reserved and arranged outside the beam body; (3) installing the first damper on the third connecting member, and installing the second damper on the fourth connecting member; (4) hoisting the prefabricated beam, so that one end of the second connecting member located outside the beam body is engaged with one end of the first connecting member located outside the column body, connecting the second connecting plate with the third connecting plate, connecting the first connecting plate with the fourth connecting plate, connecting the anchor with the second connecting member, connecting the first damper with the fourth connecting member, and connecting the second damper with the third connecting member, thereby connecting the prefabricated column and the prefabricated beam together.

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