1. The self-resetting assembly type concrete beam-column energy-consumption connecting node comprises a concrete column (1), H-shaped steel (2), a concrete beam (3), a transition connecting piece (4), a beam end plate (5), a stay cable unit (6), a damping energy-consumption component (7), a flange connecting cover plate (8), a friction energy-consumption element (9), a first high-strength bolt (10), a second high-strength bolt (11), a third high-strength bolt (12) and a web plate linking plate (13), and is characterized in that the H-shaped steel (2) is embedded in the middle of the concrete column (1), the beam end plate (5) is embedded at the left end of the concrete beam (3), the transition connecting piece (4) is connected with the concrete beam through the stay cable unit (6), and the two ends of the stay cable are anchored at the two ends of the transition connecting piece end plate (4-4) and the concrete beam (3) through prestressed anchors respectively; a left connecting plate (4-1) of the transition connecting piece (4) is connected with a web of the pre-buried H-shaped steel (2) through a first high-strength bolt (10), a right side web (4-3) is connected with a web of the beam end plate (5) through a web connecting plate (13) and a third high-strength bolt (12), and the transition connecting piece (4) and a beam end plate flange (5-2) are connected with a second high-strength bolt (11) through a flange connecting cover plate (8); and a damping energy dissipation component (7) is arranged between the transition connecting piece and the end plate.

2. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: h-shaped steel (2) is embedded in the middle of the concrete column (1), and a high-strength bolt hole is formed in a web plate of the embedded H-shaped steel and is used for realizing dry connection with the transition connecting piece (4) through a first high-strength bolt (10).

3. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the transition connecting piece (4) comprises a left connecting plate (4-1), flange plates (4-2), a right web plate (4-3) and end plates (4-4), and friction energy dissipation elements (9) are arranged on the outer side of the flange and two sides of the web plate and used for friction energy dissipation; the left connecting plate (4-1) of the transition connecting piece is provided with a high-strength bolt hole, and the transition connecting piece (4) and the pre-buried H-shaped steel (2) are fixed through a first high-strength bolt (10); corresponding holes are formed in the two sides of the end plate (4-4) and used for fixing the inhaul cable unit (6); bolt holes are formed in corresponding positions of the right web plate (4-3) and used for fixing the web plate friction energy dissipation element (9) and the web plate connecting plate (13); both sides of the flange plate (4-2) are provided with long bolt holes for limiting the sliding energy consumption of the flange friction energy consumption element and the connecting cover plate; the right side of the end plate (4-4) is provided with a damping energy dissipation component (7) which is connected to the corresponding position of the end plate in a welding or hinging way.

4. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the beam end plate (5) comprises an end plate (5-1), flanges (5-2), a web (5-3) and an embedded web (5-4), and friction energy dissipation elements (9) are arranged on the outer sides of the flanges and two sides of the web and used for friction energy dissipation; the corresponding position of the web plate (5-3) is provided with a long bolt hole for limiting the sliding energy consumption of the web plate friction energy consumption element (9) and the connecting cover plate; bolt holes are formed in the corresponding positions of the flanges and used for fixing the web friction energy dissipation element (9) and the web connecting plate (13); the embedded web plate (5-4) is embedded at the left end of the concrete beam to realize the consolidation prefabrication of the concrete beam; the left side of the end plate (5-1) is provided with a damping energy dissipation component (7) which is connected to the corresponding position of the end plate in a welding or hinging way.

5. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the damping energy dissipation component (7) comprises an outer sleeve (7-1), a hollow guide rod (7-2), a guide rod anchor plate (7-3), an elastic element (7-4) and a rubber material (7-5), wherein the elastic element can be a disc spring, a spiral spring, a rubber spring or any combination thereof; the end parts of the outer sleeve (7-1) and the hollow guide rod (7-2) are respectively connected to the right side of the end plate (4-4) of the transition connecting piece and the left side of the end plate (5-1), and a through hollow part is reserved in the outer sleeve and is suitable for a stay cable unit to pass through the center of the stay cable unit; an elastic element (7-4) and a rubber material (7-5) are arranged in the outer sleeve, the guide rod penetrates through the elastic element and is fixed on the left side of the elastic element through a guide rod anchor plate (7-3), when the beam is stressed, force is transferred to the guide rod anchor plate (7-3) through the hollow guide rod (7-2), and the anchor plate compresses the elastic element (7-4) and the rubber material (7-5) to achieve energy consumption.

6. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the inhaul cable units (6) are selected from elements with elastic restoring force or elements capable of providing prestress or combination elements of the two, the number of the inhaul cable units can be calculated and selected according to specific engineering requirements, one end of each inhaul cable unit is anchored on the left side of the end plate (4-4) of the transition connecting piece, and the other end of each inhaul cable unit is anchored on the right end of the concrete beam.

7. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: and a base plate is arranged at the end part of the concrete beam (3) and used for anchoring the inhaul cable.

8. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the flange connecting cover plate (8) and the web connecting plate (13) are provided with fixing bolt holes and sliding limiting bolt holes at corresponding positions, the fixing bolt holes at the corresponding positions are used for fixing the flange connecting cover plate (8), the web connecting plate (13) and the friction energy dissipation element (9), and the sliding bolts are used for limiting the connecting plate and the friction energy dissipation element (9) when the displacement is deformed.

9. The self-resetting fabricated concrete beam column energy-consuming connection node of claim 1, wherein: the through holes are formed in the corresponding positions of the concrete beams (3) and used for penetrating the inhaul cable units (6) to provide pretightening force.

10. The construction method of the self-resetting fabricated concrete beam column energy-consuming connection joint of claim 1, characterized by comprising the following steps:

manufacturing a pre-embedded component in a factory according to the design size of a specific project, completing pre-embedding and prefabrication of the corresponding component, and performing anti-rust treatment on each metal element; connecting the damping energy dissipation member (7) at the corresponding positions of the transition connecting piece (4) and the beam end plate (5) in a welding or hinging manner; temporarily fixing friction energy dissipation elements (9) and connecting cover plates at the web plates and flanges of the transition connecting piece (4) and the beam end plate (5) through high-strength bolts;

step (2), tensioning prestress: the cable unit (6) penetrates through an industrial concrete beam (3), a beam end plate (5), a damping energy consumption component (7) and an end plate (4-4) of a transition connecting piece, a prestress is stretched to a design value according to specific engineering design requirements through a prestress stretching machine in a prefabrication factory, the cable unit (6) is anchored through a prestress anchoring piece, prestress stretching is completed, module connection and prefabrication of the concrete beam (3) and the transition connecting piece (4) are achieved, and a second high-strength bolt (11) and a third high-strength bolt (12) are reinforced;

step (3) transporting the combined modules of the concrete beam (3) and the transition connecting piece (4) and other components to the site, after the prefabricated concrete column is fixed, hoisting the combined modules of the concrete beam (3) and the transition connecting piece (4) in place, and fixing the transition connecting piece connecting plate (4-2) and the web plate of the concrete column pre-embedded H-shaped steel (2) through the first high-strength bolt (10);

correcting and checking the torque of each bolt, ensuring the pre-tightening force design value of each bolt, and performing integral rust prevention treatment on the nodes after the installation is finished;

and (5) avoiding deformation and collapse of the joint connection position in a fire at high temperature, and performing fire prevention treatment on the joint position, wherein the fire prevention grade is determined according to actual engineering.

Background

In recent years, the building industry is rapidly developed, and with the proposal of carbon neutralization by carbon peak, the transformation and upgrade of energy and the building field are promoted, and the assembly type building is greatly promoted to become the focus of the transformation and upgrade of the building. The assembly type building has the advantages of high industrialization degree, small pollution, short construction period and the like, the assembly type building is continuously emerged, and the reliability and the energy consumption capability of the assembly type connecting node are the keys influencing the safety application and the service life of the assembly type building. The design of the building structure requires 'strong joint and weak member', and the unrecoverable plastic destruction of the beam-column joint directly affects the service life of the building and endangers the life and property of people.

In the existing fabricated concrete structure, overhanging steel bars are reserved on both a prefabricated beam and a prefabricated column, steel bar lap joints are reserved at beam-column intersection points, and the prefabricated beam and the prefabricated column are connected in a post-cast concrete mode.

Disclosure of Invention

The invention aims to provide a self-resetting assembly type concrete beam column energy-consuming connecting node and a construction method.

The invention relates to a self-resetting assembly type concrete beam-column energy-consumption connecting node and a construction method, wherein the self-resetting assembly type concrete beam-column energy-consumption connecting node comprises a concrete column 1, H-shaped steel 2, a concrete beam 3, a transition connecting piece 4, a beam end plate 5, a guy cable unit 6, a damping energy-consumption component 7, a flange connecting cover plate 8, a friction energy-consumption element 9, a first high-strength bolt 10, a second high-strength bolt 11, a third high-strength bolt 12 and a web plate connecting plate 13, the H-shaped steel 2 is embedded in the middle of the concrete column 1, the beam end plate 5 is embedded at the left end of the concrete beam 3, the transition connecting piece 4 is connected with the concrete beam through the guy cable unit 6, and two ends of the guy cable are anchored at two ends of the transition; the left connecting plate 4-1 of the transition connecting piece 4 is connected with the web of the embedded H-shaped steel 2 through a first high-strength bolt 10, the right web 4-3 is connected with the web of the beam end plate 5 through a web connecting plate 13 and a third high-strength bolt 12, and the transition connecting piece 4 is connected with the flange 5-2 of the beam end plate through a flange connecting cover plate 8 and a second high-strength bolt 11; and a damping energy dissipation member 7 is arranged between the transition connecting piece and the end plate.

The invention discloses a construction method of a self-resetting fabricated concrete beam column energy-consuming connecting joint, which comprises the following steps:

manufacturing a pre-embedded component in a factory according to the design size of a specific project, completing pre-embedding and prefabrication of the corresponding component, and performing anti-rust treatment on each metal element; connecting the damping energy dissipation member 7 to the corresponding positions of the transition connecting piece 4 and the beam end plate 5 in a welding or hinging manner; temporarily fixing friction energy consumption elements 9 and connecting cover plates at the web plates and the flanges of the transition connecting piece 4 and the beam end plates 5 through high-strength bolts;

step (2), tensioning prestress: the cable unit 6 penetrates through the engineering concrete beam 3, the beam end plate 5, the damping energy dissipation member 7 and the end plate 4-4 of the transition connecting piece, the prestress is tensioned to a design value according to the specific engineering design requirement through a prestress tensioning machine in a prefabrication factory, the cable unit 6 is anchored through a prestress anchoring piece, the prestress tensioning is completed, the modular connection and prefabrication of the concrete beam 3 and the transition connecting piece 4 are realized, and the second high-strength bolt 11 and the third high-strength bolt 12 are reinforced;

step (3) the combined modules of the concrete beam 3 and the transition connecting piece 4 and other components are conveyed to the site, after the precast concrete column is fixed, the combined modules of the concrete beam 3 and the transition connecting piece 4 are hoisted in place, and the transition connecting piece connecting plate 4-2 and the pre-embedded H-shaped steel 2 web plate of the concrete column are fixed through the first high-strength bolt 10;

correcting and checking the torque of each bolt, ensuring the pre-tightening force design value of each bolt, and performing integral rust prevention treatment on the nodes after the installation is finished;

and (5) avoiding deformation and collapse of the joint connection position in a fire at high temperature, and performing fire prevention treatment on the joint position, wherein the fire prevention grade is determined according to actual engineering.

The invention has the advantages that: 1. all elements and components are prefabricated in factories and are produced industrially, on-site wet operation is avoided, construction precision is improved, construction period is shortened, and human resources are saved; in order to avoid the damage of the beam-column contact surface, the steel nodes are adopted at the node positions, the nodes are arranged at the back bending points of the steel beam, so that the plastic hinges move outwards, the nodes are connected in sections through the stay cable units, and the plastic deformation of the nodes can be effectively avoided through the opening and closing of the joints under the action of earthquake; 2. the concrete beam 3 and the transition connecting piece 4 are spliced together through the pretightening force of the inhaul cable in a factory, the prestress precision is high, and high-altitude pretightening is avoided; 3. friction energy dissipation devices are arranged at the joints of the web plates and the flange plates of the transition connecting piece 4 and the beam end plate 5, so that the energy dissipation of the node is improved; 4. a damping energy dissipation component 7 is arranged between the transition connecting piece and the beam end plate, so that the energy dissipation capacity of the node is further improved; 5. if the friction energy dissipation subassembly takes place great deformation, only need change this subassembly 8, 9, 13 can, the later stage maintenance of being convenient for is consolidated, realizes cyclic utilization, improves life. The node bolt is convenient to fasten, has no wet operation in field assembly, fully prefabricated components, fully assembled on the field, high industrialization degree and is suitable for development and application of an assembly type.

Drawings

Fig. 1 is a three-dimensional view of the present invention, fig. 2 is a field installation view of the present invention, fig. 3 is a front view of the present invention, fig. 4 is a three-dimensional view of a transition piece of the present invention, fig. 5 is a three-dimensional view of a beam end plate of the present invention, and fig. 6 is a three-dimensional detail view of a damping energy dissipating member of the present invention.

Detailed Description

The invention relates to a self-resetting assembly type concrete beam-column energy-consumption connecting node and a construction method, wherein the self-resetting assembly type concrete beam-column energy-consumption connecting node comprises a concrete column 1, H-shaped steel 2, a concrete beam 3, a transition connecting piece 4, a beam end plate 5, a guy cable unit 6, a damping energy-consumption component 7, a flange connecting cover plate 8, a friction energy-consumption element 9, a first high-strength bolt 10, a second high-strength bolt 11, a third high-strength bolt 12 and a web plate connecting plate 13, the H-shaped steel 2 is embedded in the middle of the concrete column 1, the beam end plate 5 is embedded at the left end of the concrete beam 3, the transition connecting piece 4 is connected with the concrete beam through the guy cable unit 6, and two ends of the guy cable are anchored at two ends of the transition connecting piece end plate 4-4 and the concrete beam 3 through prestressed anchors respectively; the left connecting plate 4-1 of the transition connecting piece 4 is connected with the web of the embedded H-shaped steel 2 through a first high-strength bolt 10, the right web 4-3 is connected with the web of the beam end plate 5 through a web connecting plate 13 and a third high-strength bolt 12, and the transition connecting piece 4 is connected with the flange 5-2 of the beam end plate through a flange connecting cover plate 8 and a second high-strength bolt 11; and a damping energy dissipation member 7 is arranged between the transition connecting piece and the end plate.

The self-resetting assembly type concrete beam column energy-consumption connecting node is characterized in that H-shaped steel 2 is pre-embedded in the middle of a concrete column 1, and a web plate of the pre-embedded H-shaped steel is provided with a high-strength bolt hole for realizing dry connection with a transition connecting piece 4 on site through a first high-strength bolt (10). The assembly efficiency is improved, and wet operation is avoided.

In the self-resetting assembly type concrete beam-column energy-consumption connecting node, the transition connecting piece 4 comprises a left connecting plate 4-1, a flange plate 4-2, a right web plate 4-3 and an end plate 4-4, and friction energy-consumption elements 9 are arranged on the outer side of the flange and two sides of the web plate and used for friction energy consumption; the left connecting plate 4-1 of the transition connecting piece is provided with a high-strength bolt hole, and the transition connecting piece 4 and the pre-buried H-shaped steel 2 are fixed through a first high-strength bolt 10; corresponding holes are formed in the two sides of the end plate 4-4 and used for fixing the inhaul cable unit 6; bolt holes are formed in corresponding positions of the right web plate 4-3 and used for fixing the web plate friction energy dissipation element 9 and the web plate connecting plate 13; both sides of the flange plate 4-2 are provided with long bolt holes for limiting the sliding energy consumption of the flange friction energy consumption element and the connecting cover plate; and a damping energy dissipation component 7 is arranged on the right side of the end plate 4-4 and is connected to the corresponding position of the end plate in a welding or hinging mode.

According to the self-resetting assembly type concrete beam-column energy-consumption connecting node, the beam end plate 5 comprises an end plate 5-1, flanges 5-2, a web 5-3 and a pre-embedded web 5-4, and friction energy-consumption elements 9 are arranged on the outer sides of the flanges and two sides of the web and used for friction energy consumption; long bolt holes are formed in the corresponding positions of the web plates 5-3 and used for limiting the sliding energy consumption of the web plate friction energy consumption element 9 and the connecting cover plate; the corresponding positions of the flanges are provided with bolt holes for fixing the web friction energy dissipation element 9 and the web connecting plate 13; the embedded web plates 5-4 are embedded at the left end of the concrete beam to realize the consolidation prefabrication of the concrete beam; the left side of the end plate 5-1 is provided with a damping energy dissipation component 7 which is connected with the corresponding position of the end plate in a welding or hinging way.

In the self-resetting assembly type concrete beam-column energy-consumption connecting node, the damping energy-consumption component 7 comprises an outer sleeve 7-1, a hollow guide rod 7-2, a guide rod anchor plate 7-3, an elastic element 7-4 and a rubber material 7-5, wherein the elastic element can be a disc spring, a spiral spring, a rubber spring or any combination thereof; the end parts of the outer sleeve 7-1 and the hollow guide rod 7-2 are respectively connected to the right side of the end plate 4-4 of the transition connecting piece and the left side of the end plate 5-1, and a through hollow part is reserved in the outer sleeve and is suitable for a stay cable unit to pass through the center of the stay cable unit; the elastic element 7-4 and the rubber material 7-5 are arranged in the outer sleeve, the guide rod penetrates through the elastic element and is fixed on the left side of the elastic element through the guide rod anchor plate 7-3, when the beam is stressed, the hollow guide rod 7-2 transmits force to the guide rod anchor plate 7-3, and the anchor plate compresses the elastic element 7-4 and the rubber material 7-5 to achieve energy consumption.

In the self-resetting fabricated concrete beam column energy-consuming connection node, the stay cable unit 6 is an element with elastic restoring force or an element capable of providing prestress or a combination element of the two, the number of the stay cable units can be calculated and selected according to specific engineering requirements, one end of the stay cable unit is anchored on the left side of the end plate 4-4 of the transition connecting piece, and the other end of the stay cable unit is anchored on the right end of the concrete beam.

The self-resetting assembly type concrete beam column energy-consuming connection node is characterized in that the end part of the concrete beam 3 is provided with the backing plate for anchoring the inhaul cable.

In the self-resetting assembly type concrete beam column energy-dissipation connecting node, the flange connecting cover plate 8 and the web connecting plate 13 are provided with the fixing bolt holes and the sliding limiting bolt holes at corresponding positions, the fixing bolt holes at corresponding positions are used for fixing the flange connecting cover plate 8, the web connecting plate 13 and the friction energy-dissipation element 9, and the sliding bolts are used for limiting the connecting plate and the friction energy-dissipation element 9 when the displacement is deformed.

The self-resetting assembly type concrete beam column energy-consuming connection node is characterized in that a through hole is formed in the corresponding position of the concrete beam 3 and used for penetrating through the inhaul cable unit 6 to provide pretightening force.

The invention discloses a construction method of a self-resetting fabricated concrete beam column energy-consuming connecting joint, which comprises the following steps:

manufacturing a pre-embedded component in a factory according to the design size of a specific project, completing pre-embedding and prefabrication of the corresponding component, and performing anti-rust treatment on each metal element; connecting the damping energy dissipation member 7 to the corresponding positions of the transition connecting piece 4 and the beam end plate 5 in a welding or hinging manner; temporarily fixing friction energy consumption elements 9 and connecting cover plates at the web plates and the flanges of the transition connecting piece 4 and the beam end plates 5 through high-strength bolts;

step (2), tensioning prestress: the cable unit 6 penetrates through the engineering concrete beam 3, the beam end plate 5, the damping energy dissipation member 7 and the end plate 4-4 of the transition connecting piece, the prestress is tensioned to a design value according to the specific engineering design requirement through a prestress tensioning machine in a prefabrication factory, the cable unit 6 is anchored through a prestress anchoring piece, the prestress tensioning is completed, the modular connection and prefabrication of the concrete beam 3 and the transition connecting piece 4 are realized, and the second high-strength bolt 11 and the third high-strength bolt 12 are reinforced;

step (3) the combined modules of the concrete beam 3 and the transition connecting piece 4 and other components are conveyed to the site, after the precast concrete column is fixed, the combined modules of the concrete beam 3 and the transition connecting piece 4 are hoisted in place, and the transition connecting piece connecting plate 4-2 and the pre-embedded H-shaped steel 2 web plate of the concrete column are fixed through the first high-strength bolt 10;

correcting and checking the torque of each bolt, ensuring the pre-tightening force design value of each bolt, and performing integral rust prevention treatment on the nodes after the installation is finished;

and (5) avoiding deformation and collapse of the joint connection position in a fire at high temperature, and performing fire prevention treatment on the joint position, wherein the fire prevention grade is determined according to actual engineering.

The H-shaped steel 2 is embedded in the middle of the concrete column 1, and the web of the embedded H-shaped steel is provided with the high-strength bolt hole, so that the assembly construction of later dry operation is facilitated, the assembly efficiency is improved, the assembly cost is saved, and the assembly difficulty is reduced.

The transition connecting piece 4 comprises a left connecting plate 4-1, flange plates 4-2, a right web plate 4-3 and an end plate 4-4, wherein friction energy dissipation elements 9 are arranged on the outer side of the flange and two sides of the web plate and are used for friction energy dissipation; the left connecting plate 4-1 of the transition connecting piece is provided with a high-strength bolt hole for fixing the transition connecting piece and a first high-strength bolt 10 of an embedded H-shaped steel web; corresponding holes are formed in the two sides of the end plate and used for fixing the inhaul cable unit 6; bolt holes are formed in the corresponding positions of the right web 4-2 and used for fixing the web friction energy dissipation element 9 and the web connecting plate 13; both sides of the flange are provided with long bolt holes for limiting the sliding energy consumption of the flange friction energy consumption element 9 and the connecting cover plate 8; the right side of the end plate is provided with a damping energy dissipation component 7 which is connected to the corresponding position of the end plate in a welding or hinging mode. The dry operation is convenient and fast to construct, the energy consumption of multiple components is reduced, the stability of the result is improved, and the service life is prolonged.

The beam end plate 5 comprises an end plate 5-1, flanges 5-2, a web 5-3 and a pre-embedded web 5-4, wherein friction energy dissipation elements 9 are arranged on the outer sides of the flanges and two sides of the web and are used for friction energy dissipation; long bolt holes are formed in the corresponding positions of the web plates 5-3 and used for limiting the sliding energy consumption of the web plate friction energy consumption element 9 and the web plate connecting plate 13; the corresponding position of the flange is provided with a bolt hole for fixing the web friction energy dissipation element and the web connecting plate; the embedded web plates 5-4 are prefabricated at the left end of the concrete beam, so that the concrete beam is solidified and prefabricated; and a damping energy dissipation component 7 is arranged on the left side of the beam end plate and connected to the corresponding position of the end plate in a welding or hinged mode. The embedded components effectively reduce on-site wet operation, improve component precision, and the long bolt holes provide enough displacement space for the nodes, reduce node plastic deformation.

The damping energy dissipation member 7 comprises an outer sleeve 7-1, a hollow guide rod 7-2, a guide rod anchor plate 7-3, an elastic element 7-4 and a rubber material 7-5, wherein the elastic element can be a disc spring, a spiral spring, a rubber spring or any combination thereof; the end parts of the outer sleeve 7-1 and the hollow guide rod 7-2 are respectively connected to the right side of the end plate 4-4 of the transition connecting piece and the left side of the end plate 5-1, and a through hollow part is reserved in the outer sleeve and is suitable for a stay cable unit to pass through the center of the stay cable unit; the elastic element 7-4 and the rubber material 7-5 are arranged in the outer sleeve, the guide rod penetrates through the elastic element and is fixed on the left side of the elastic element through the guide rod anchor plate 7-3, when the beam is stressed, the hollow guide rod 7-2 transmits force to the guide rod anchor plate 7-3, and the anchor plate compresses the elastic element 7-4 and the rubber material 7-5 to achieve energy consumption. The damper superposes the counter-force, when increasing the power consumption, can provide better resilience for the node.

The guy cable unit 6 of the present invention may be selected from an element having an elastic restoring force or an element providing a prestress or a combination of both, and the number thereof may be calculated according to the specific engineering requirements, and one end thereof is anchored to the left side of the end plate of the transition joint and the other end thereof is anchored to the end plate of the concrete beam. The pre-tightening force is tensioned in a factory, so that dangerous operation of high-altitude tensioning pre-tightening force is effectively avoided, the pre-tightening force precision is improved, the pre-tightening force can provide restoring force for the node, and the function of recovering the node is realized.

The backing plate is arranged at the end part of the concrete beam 3 and used for anchoring the backing plate at the other end of the inhaul cable, so that the concrete is prevented from being crushed due to the pre-tightening force.

The flange connecting cover plate 8 and the web connecting plate 13 are provided with fixing bolt holes and sliding limiting bolt holes at corresponding positions, the fixing bolt holes at the corresponding positions are used for fixing the flange connecting cover plate 8, the web connecting plate 13 and the friction energy dissipation element 9, and the sliding bolts are used for limiting the connecting plate and the friction energy dissipation element during displacement deformation. The part of the component provides sufficient displacement space for the node, energy consumption can be achieved under the action of an earthquake, the effect of the initial reset function can be achieved, if the part of the component is subjected to plastic deformation, the component can be repaired only by replacing the connecting plate, the repair cost after the earthquake is reduced, and the service life of the structure is prolonged.

The following description is given of the embodiments of the present invention, and it should be understood that the present invention is not limited to the embodiments, and all equivalent changes and modifications made on the basis of the claims are intended to be included in the scope of the present invention.

As shown in fig. 1, the self-resetting fabricated concrete beam-column energy-consuming connection node and the construction method of the invention comprise a concrete column 1, H-shaped steel 2, a concrete beam 3, a transition connector 4, a beam end plate 5, a guy cable unit 6, a damping energy-consuming member 7, a flange connection cover plate 8, a friction energy-consuming element 9, a first high-strength bolt 10, a second high-strength bolt 11, a third high-strength bolt 12 and a web plate link plate 13; the middle part of a concrete column 1 is embedded with H-shaped steel 2, the left end of the concrete beam 3 is embedded with a beam end plate 5, a transition connecting piece 4 is connected with the concrete beam through a guy cable unit 6, and two ends of the guy cable are anchored at two ends of the transition connecting piece end plate 4-4 and the concrete beam 3 through prestressed anchors respectively; the left connecting plate 4-1 of the transition connecting piece 4 is connected with the web of the embedded H-shaped steel 2 through a first high-strength bolt 10, the right web 4-3 is connected with the web of the beam end plate 5 through a web connecting plate 13 and a third high-strength bolt 12, and the transition connecting piece 4 is connected with the flange 5-2 of the beam end plate through a flange connecting cover plate 8 and a second high-strength bolt 11; and a damping energy dissipation member 7 is arranged between the transition connecting piece and the end plate.

Specifically, as shown in fig. 2, a concrete column 1, H-shaped steel 2, a concrete beam 3 and a beam end plate 5 are pre-embedded and prefabricated in a factory, the concrete beam 3, a transition connecting piece 4, the beam end plate 5, a guy cable unit 6, a damping energy dissipation member 7, a flange connecting cover plate 8, a friction energy dissipation element 9, a first high-strength bolt 10, a second high-strength bolt 11, a third high-strength bolt 12 and a web plate connecting plate 13 are assembled and prefabricated in the factory, the module is hoisted on the site, and the on-site assembly is realized through the first high-strength bolt 10, so that the dry operation is convenient and rapid to construct, and time and labor are saved.

Specifically, as shown in fig. 4, the transition connection piece 4 includes a left connection plate 4-1, a flange plate 4-2, a right web plate 4-3 and an end plate 4-4, and friction energy dissipation elements 9 are arranged on the outer side of the flange and two sides of the web plate for friction energy dissipation; the transition connecting piece is used as an assembly connecting component, the strength of the component is guaranteed to meet the requirement of bearing capacity, and the concrete dry operation is realized on the premise.

Specifically, as shown in fig. 5, the beam end plate 5 comprises an end plate 5-1, a flange 5-2, a web 5-3 and a pre-embedded web 5-4, and friction energy dissipation elements 9 are arranged on the outer side of the flange and two sides of the web and used for friction energy dissipation; the beam end plate is pre-buried, converts concrete connection position into the steel node, has effectively avoided the poor problem of concrete plastic deformation, has improved the reliability and the power consumption ability of node.

Specifically, as shown in fig. 6, the guy cable unit 6 may be an element having an elastic restoring force, an element capable of providing a prestress, or a combination of the two elements, and a factory tensions a pretightening force, thereby effectively avoiding a dangerous operation of high-altitude tensioning of the prestress, improving the pretightening force accuracy, and the pretightening force can provide a restoring force for the node, thereby realizing a function of recovering the node.