Assembly type prestressed self-resetting frame beam column replaceable energy dissipation joint

Abstract

The invention discloses an assembly type prestressed self-resetting frame beam column replaceable energy dissipation joint which comprises a joint core area connecting device, a short steel beam connecting piece, an RC frame beam connecting piece, a replaceable energy dissipation device, a self-resetting device, a pin shaft and a friction base plate. The joint core area connecting device comprises a partition plate, a hoop and a short steel beam. The short steel beam connecting piece comprises a fixing plate, an anchoring plate and an outer friction lug plate; the RC frame beam connecting piece comprises an inner friction lug plate, an RC frame beam connecting end plate and embedded H-shaped steel; the hoop is connected with the fixing plate through the short steel beam, and the outer friction lug plate, the inner friction lug plate and the friction base plate are connected to form a friction energy dissipation device. The pin shaft is in running fit with the friction energy consumption device; the anchoring plate and the RC frame beam connecting end plate are connected through a replaceable energy consumption device; the RC frame beam connecting end plates are connected with the beam longitudinal bars. Two energy consumption devices are ingeniously designed, and the defect that the energy consumption level of the structure can only be in the low level after a single-form energy consumption component loses efficacy is overcome.

Description

Technical Field

[0001] The invention relates to a replaceable energy-consuming node of an assembled prestressed self-resetting frame beam column, and belongs to the field of structural engineering. Background Art

[0002] At present, the goal of earthquake fortification is "no damage in small earthquakes, repairable in medium earthquakes, and no collapse in large earthquakes". However, even if the building achieves the above fortification goals, it often suffers large residual deformation and damage that is difficult to repair after the earthquake, and can only be demolished, resulting in a large waste of resources. Therefore, it is urgent to develop a frame structure beam-column connection technology with recoverable deformation, strong energy dissipation capacity, and high bearing capacity.

[0003] Among the existing self-resetting node technologies, the self-resetting nodes made of SMA (Shape Memory Alloy) materials are relatively expensive and the performance of SMA materials is greatly affected by temperature, loading methods, etc., which has an adverse effect on their large-scale application. Under the action of an earthquake, the prestressed tendons of the prestressed self-resetting RC frame structure are in an elastic stage, and the seismic energy is mainly dissipated by energy-absorbing components, and the RC frame is slightly damaged or not damaged. After the earthquake, only the energy-absorbing components need to be replaced to achieve rapid recovery of the structural function. Under the action of the prestressed tendons, the structure can also reset itself, achieving the purpose of controllable residual deformation.

[0004] At present, many research results have been achieved on prefabricated prestressed self-resetting RC frame structures, but most of them focus on the structural form of the beam-column node of the self-resetting RC frame, and then verify the energy dissipation capacity and reset characteristics. For prefabricated RC frame structures with replaceable energy-absorbing components, there are still two issues that need to be studied: on the one hand, it is often difficult to take into account both the energy dissipation level and the reset capacity. How to balance the relationship between the two, so that the energy dissipation capacity is strong and the residual deformation is small, requires further research; on the other hand, how to achieve different energy dissipation modes in different deformation stages in stages, so that small earthquakes, medium earthquakes, and large earthquakes have good energy dissipation levels and reset capabilities is also a difficult problem for prefabricated RC frame structures. Summary of the invention

[0005] The present invention provides a replaceable energy-absorbing node for assembled prestressed self-resetting frame beams and columns. By cleverly designing two energy-absorbing devices, namely a replaceable energy-absorbing device and a friction energy-absorbing device, the disadvantage that the energy-absorbing level of the structure can only be at a relatively low level after the failure of a single form of energy-absorbing component is avoided.

[0006] The technical solution of the present invention is: an assembled prestressed self-resetting frame beam-column replaceable energy-absorbing node, comprising a node core area connection device 2, a short steel beam connector 3, an RC frame beam connector 4, a replaceable energy-absorbing device 5, a self-resetting device 7, a pin 10, and a friction pad 13;

[0007] The node core area connection device 2 includes a partition 201, a hoop 202, and a short steel beam 203; the partition 201 is installed in the hoop 202, a circular hole is opened in the middle of the partition 201, and a small hole is opened at the edge of the partition 201 for the column longitudinal reinforcement to pass through; the partition 201 in the hoop 202, the column longitudinal reinforcement and the column hoop reinforcement tied outside the column longitudinal reinforcement are formed into an RC frame column 1 extending along a first direction by pouring concrete; the short steel beam 203 is installed outside the hoop 202 along a second direction to realize the connection between one end of the short steel beam 203 and the hoop 202; the first direction and the second direction are perpendicular to each other;

[0008] The short steel beam connector 3 includes a fixed plate 301, an anchor plate 302, and an outer friction ear plate 303 connected in sequence; the RC frame beam connector 4 includes an inner friction ear plate 401, an RC frame beam connection end plate 402, and an embedded H-shaped steel 403 connected in sequence; the fixed plate 301 is connected to the other end of the short steel beam 203, and the outer friction ear plate 303, the inner friction ear plate 401, and the friction pad 13 arranged in sequence from the outside to the inside are connected to form a friction energy dissipation device; the pin 10 passes through the friction energy dissipation device, and the two are rotatably matched; the anchor plate 302 and the RC frame beam connection end plate 402 are connected by a replaceable energy dissipation device 5; the RC frame beam connection end plate 402 is connected to the beam longitudinal reinforcement 12 located on the side of the RC frame beam connection end plate 402 away from the short steel beam connector 3, and the embedded H-shaped steel 403, the beam longitudinal reinforcement and the beam stirrups tied outside the beam longitudinal reinforcement are formed into an RC frame beam 6 by pouring concrete;

[0009] The self-resetting device 7 is arranged along the second direction, connected to the anchor plate 302 in sequence, passes through the RC frame beam connecting end plate 402 and the RC frame beam 6, and then anchored on the RC frame beam anchor end plate 11.

[0010] Furthermore, two partitions 201 arranged in parallel along the second direction are installed in the clamp 202; the short steel beam 203 is an H-shaped steel beam, and the two partitions 201 are at the same height as the centroids of the upper and lower flanges of the H-shaped steel beam.

[0011] Furthermore, the replaceable energy absorbing device 5 comprises a left bottom plate 501, an energy absorbing plate 502, and a right bottom plate 503 of an energy absorbing plate; two energy absorbing plates 502 are symmetrically installed between the left bottom plate 501 and the right bottom plate 503 of the energy absorbing plate; the left bottom plate 501 of the energy absorbing plate is fixed to the anchor plate 302 by the second high-strength bolt, and the third high-strength bolt and the RC frame beam longitudinal reinforcement 12 are respectively connected by the steel sleeve 9, so as to fix the right bottom plate 503 of the energy absorbing plate to the RC frame beam connecting end plate 402.

[0012] Furthermore, the self-resetting device 7 adopts four groups, each of which includes a prestressed steel strand 701 and an anchor 702; the prestressed steel strand 701 is fixed by the anchor 702 in a diagonal tensioning manner.

[0013] The beneficial effects of the present invention are:

[0014] First, the present invention effectively reduces the residual deformation of the structure by post-tensioning the unbonded prestressed steel bars, and realizes the self-reset of the structure after an earthquake.

[0015] Second, the structural damage of the present invention is concentrated on the replaceable energy-absorbing device, which is easy to replace, thus achieving rapid recovery of the structural function after an earthquake.

[0016] Third, the present invention achieves a reasonable match between the two energy dissipation modes by adjusting the design parameters of the replaceable energy dissipation device and the friction energy dissipation device, so that in small and medium earthquakes, only friction energy is consumed, and in large earthquakes, friction energy and the replaceable energy dissipation device consume energy together, thereby achieving good energy dissipation and reset capabilities of the structure in different deformation stages.

[0017] Fourth, the prestressed steel bars are tensioned on the ground at the construction site, and connected to the short steel beams through high-strength bolts after being hoisted into place, avoiding the dangerous operation of tensioning prestressed steel bars at high altitudes. It also avoids the risk of a significant reduction in the prestress in multi-span beams after the prestressed steel bars tensioned through the span fail.

[0018] Fifth, the present invention has a high safety redundancy by providing two energy dissipation devices, thereby avoiding the disadvantage that the energy dissipation level of the structure can only be at a low level after the failure of a single form of energy dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the core area connection device of the steel-concrete node of the present invention;

[0021] Figure 3 This is a schematic diagram of the partition plate in the core area of ​​the steel-concrete node of the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of the short steel beam connecting member of the present invention;

[0023] Figure 5 It is a three-dimensional schematic diagram of the RC frame beam connecting member of the present invention;

[0024] Figure 6 It is a three-dimensional schematic diagram of the replaceable energy dissipation device of the present invention;

[0025] Figure 7 It is a three-dimensional schematic diagram of the connection between the longitudinal reinforcement and the steel sleeve of the RC frame beam of the present invention;

[0026] Figure 8 It is a schematic diagram of the friction pad device of the present invention;

[0027] Fig. 9 A top view of the friction energy dissipation device of the present invention;

[0028] Fig.10 It is a schematic diagram of the prestressed steel strand of the present invention;

[0029] Among them: 1-RC frame column; 2-node core area connection device; 201-partition; 202-hoop; 203-short steel beam; 3-short steel beam connector; 301-fixed plate; 302-anchor plate; 303-external friction ear plate; 4-RC frame beam connector; 401-inner friction ear plate; 402-RC frame beam connection end plate; 403-embedded H-shaped steel; 5-replaceable energy absorption device; 501-left bottom plate of energy absorption plate; 502-energy absorption plate; 503-right bottom plate of energy absorption plate; 6-RC frame beam; 701-prestressed steel strand; 702-anchor; 9-steel sleeve; 10-pin shaft; 11-RC frame beam anchor end plate; 12-RC frame beam longitudinal reinforcement, 13-friction pad. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0031] Example 1: Figure 1-10 As shown, an assembled prestressed self-resetting frame beam-column replaceable energy-absorbing node includes a node core area connecting device 2, a short steel beam connecting member 3, an RC frame beam connecting member 4, a replaceable energy-absorbing device 5, a self-resetting device 7, a pin shaft 10, and a friction pad 13.

[0032] Reference Figure 2 , Figure 3The node core area connection device 2 includes a partition 201, a hoop 202, and a short steel beam 203; the partition 201 is installed in the hoop 202, and a circular hole is opened in the middle of the partition 201 to increase the embedding effect with the column concrete, and a small hole is opened at the edge of the partition 201 for the column longitudinal reinforcement to pass through; the partition 201, the column longitudinal reinforcement and the column stirrups tied outside the column longitudinal reinforcement in the hoop 202 are formed by pouring concrete to form an RC frame column 1 extending along a first direction; the short steel beam 203 is welded and installed on the outside of the hoop 202 along the second direction to achieve the connection between one end of the short steel beam 203 and the hoop 202; the first direction and the second direction are perpendicular to each other; in specific application, the column stirrups are tied to the column longitudinal reinforcement extending out of the hoop 202; specifically, refer to Figures 1 to 3 The RC frame column 1 is a rectangular column. The column longitudinal reinforcement and column stirrups are designed according to the specifications. The column longitudinal reinforcement is arranged through the small holes of the partition 201. After the column stirrups are tied, the concrete can be poured after the formwork is completed, and the RC frame column 1 is obtained after the curing is completed.

[0033] Furthermore, two partitions 201 arranged in parallel along the second direction are installed in the clamp 202; the short steel beam 203 is an H-shaped steel beam, and the two partitions 201 are at the same height as the centroid of the upper and lower flanges of the H-shaped steel beam, thereby better transmitting the tensile pressure on the upper and lower flanges of the short steel beam 203.

[0034] refer to Figure 4 The short steel beam connector 3 includes a fixing plate 301, an anchor plate 302, and an outer friction ear plate 303 connected in sequence; Figure 5 The RC frame beam connector 4 includes an inner friction ear plate 401, an RC frame beam connection end plate 402, and an embedded H-shaped steel 403 connected in sequence; the fixed plate 301 is connected to the other end of the short steel beam 203, and the outer friction ear plate 303, the inner friction ear plate 40, and the friction pad 13 arranged in close contact from the outside to the inside are connected to form a friction energy dissipation device; the pin 10 passes through the friction energy dissipation device, and the two are rotatably matched; the anchor plate 302 and the RC frame beam connection end plate 402 are connected by a replaceable energy dissipation device 5; the RC frame beam connection end plate 402 is connected to the beam longitudinal reinforcement 12 located on the side of the RC frame beam connection end plate 402 away from the short steel beam connector 3, and the embedded H-shaped steel 403, the beam longitudinal reinforcement and the beam stirrups tied outside the beam longitudinal reinforcement are formed by pouring concrete to form an RC frame beam 6;

[0035] For example, Figure 2 , Figure 4As shown, the web of the short steel beam 203 is provided with a first bolt hole, the fixing plate 301 is composed of two pieces and is symmetrically welded to one side of the anchor plate 302, the two fixing plates 301 are fitted with the web of the short steel beam 203 located therebetween, and the short steel beam 203 and the fixing plate 301 are fixed together by the first high-strength bolt. Figure 4 , Figure 5 , Figure 8 , Fig. 9 As shown, the outer friction ear plates 303 are two pieces and are symmetrically welded to the other side of the anchor plate 302, with a first pin hole in the middle and a bolt hole along the circular curve; the two inner friction ear plates 401 are symmetrically welded to one side of the RC frame beam connection end plate 402, with a second pin hole in the middle and a bolt waist hole along the circular curve, and the sliding bolts on the left and right sides respectively pass through the bolt holes of the outer friction ear plates 303, the bolt waist holes of the inner friction ear plates 401, and the bolt holes of the friction pad 13 from the outside to the inside to form two pairs of left-right symmetrical friction energy dissipation devices, wherein the waist hole design leaves space for the sliding bolts so that they can rotate smoothly. The pin 10 passes through the middle circular holes of the outer friction ear plates 303, the inner friction ear plates 401, and the friction pad 13 that are symmetrically arranged on the left and right, forming a rotation center during the force process, so that the structure can rotate around the pin. In order to increase the bending resistance of the RC frame beam connecting end plate 402, an embedded H-shaped steel 403 is welded to the RC frame beam connecting end plate 402, and a circular hole is opened at the web position of the embedded H-shaped steel 403 to increase the embedding effect with the RC frame beam 6.

[0036] Furthermore, the pin shaft 10 is made of Cr40 alloy structural steel with superior comprehensive mechanical properties and needs to meet the shear bearing capacity. The friction pad 13 should have a certain thickness to reduce the wear of the bolt on the inner friction ear plate 401 during the rotation process.

[0037] Furthermore, the replaceable energy consumption device 5 includes a left bottom plate 501 of an energy consumption plate, an energy consumption plate 502, and a right bottom plate 503 of an energy consumption plate; two energy consumption plates 502 are symmetrically welded between the left bottom plate 501 of the energy consumption plate and the right bottom plate 503 of the energy consumption plate.

[0038] For example, Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the anchor plate 302 has a second bolt hole and a first prestressed tendon hole, and four second high-strength bolts are passed through the second bolt hole to fix the left bottom plate 501 of the energy-absorbing plate to the anchor plate 302; the RC frame beam connecting end plate 402 has a third bolt hole and a second prestressed tendon hole, and the third high-strength bolt and the RC frame beam longitudinal reinforcement 12 with threaded ends are respectively connected through the third bolt hole by the steel sleeve 9, so as to fix the right bottom plate 503 of the energy-absorbing plate to the RC frame beam connecting end plate 402; one end of the prestressed steel strand 701 passes through the first prestressed tendon hole and is anchored to the anchor plate 302 with an anchor 702; the other end of the prestressed steel strand 701 passes through the second prestressed tendon hole and is anchored to the RC frame beam anchor end plate 11 with an anchor 702. Figure 1 , Figure 7 As shown in the example, the replaceable energy consuming devices 5 are provided in two groups, and the connection methods of the upper and lower replaceable energy consuming devices 5 are consistent.

[0039] In actual engineering, the energy dissipation performance of the replaceable energy dissipation device 5 can be adjusted by adjusting the material, shape, thickness of the energy dissipation plate 502, the filling material between the energy dissipation plates, etc.; the energy dissipation performance of the friction energy dissipation device can be adjusted by changing the size of the bolt pre-tension, changing the friction material, etc. The replaceable energy dissipation device and the friction energy dissipation device cooperate to achieve the goal of phased energy dissipation, and good energy dissipation capacity and reset capacity; after the earthquake, the replaceable energy dissipation device 5 can be quickly replaced by removing the high-strength bolts.

[0040] Furthermore, the self-resetting device 7 is arranged along the second direction, connected to the anchor plate 302 in sequence, passes through the RC frame beam connecting end plate 402 and the RC frame beam 6, and then anchored on the RC frame beam anchor end plate 11.

[0041] Furthermore, the self-resetting device 7 is provided in four groups, each of which includes a prestressed steel strand 701 and an anchor 702; the prestressed steel strand 701 is fixed by the anchor 702 in a diagonal tensioning manner. Figure 1 , Figure 7 , Figure 8 , Fig.10The assembled prestressed self-resetting frame beam-column replaceable energy-consuming node is symmetrically provided with 4 unbonded prestressed steel strands 701. The unbonded prestressed steel strands 701 use 7 strands of 1860-grade prestressed steel strands with a nominal diameter of 15.2 mm, and the initial tension is set to 0.3 to 0.5 times the ultimate tension. The prestressed steel strands 701 remain in an elastic state during the force-bearing process and play a resetting role. The anchor 702 can transfer the tension of the prestressed steel strands to the structure, thereby increasing the overall strength and resetting function. The anchor 702 at one end is anchored on the anchor plate 302, and the anchor 702 at the other end is anchored on the RC frame beam anchor end plate 11. The RC frame beam anchor end plate 11 has a hole at the position of the prestressed steel strand to prevent the RC frame beam 6 from being damaged by local pressure.

[0042] The working principle of the replaceable energy-absorbing node of the above-mentioned assembled prestressed self-resetting frame beam-column is as follows: under the action of frequent earthquakes, the main body of the structure and the replaceable energy-absorbing device 5 are both in the elastic stage, and the friction energy-absorbing device only rotates slightly; under the action of the fortified earthquake, the friction energy-absorbing device rotates to a certain extent, providing a smaller stiffness and a larger energy-absorbing capacity, and the replaceable energy-absorbing device 5 does not participate in the energy absorption, but provides a larger stiffness and bearing capacity. At this time, the node only dissipates the seismic energy by the friction energy-absorbing device, and the replaceable energy-absorbing device 5 is in the elastic working stage, and the structure does not need to be repaired; under the action of rare earthquakes, the energy-absorbing plate 502 of the replaceable energy-absorbing device 5 yields and enters the plastic working stage, thereby providing a greater energy-absorbing capacity and a higher ductility, and the friction energy-absorbing device rotates fully, thereby continuously providing friction energy absorption; at this time, the node dissipates energy through the plastic deformation of the energy-absorbing plate 502 and the rotational friction of the friction energy-absorbing device, and other components of the structure are still in the elastic stage or only a small part enters the elastic-plastic stage. After the earthquake, its use function can be restored by replacing the replaceable energy-absorbing device 5.

[0043] The present invention also discloses a construction method for the above-mentioned assembled prestressed self-resetting beam-column node, comprising the following steps:

[0044] 1) Standardize the production of node core area connection devices 2, short steel beam connectors 3, RC frame beam connectors 4, replaceable energy dissipation devices 5, steel sleeves 9, pins 10, and friction pads 13 in the factory; perform welding, drilling, and threading according to the above requirements.

[0045] 2) Reinforcement binding, steel component positioning, formwork, casting, and maintenance of RC frame beams 6 and RC frame columns 1. It should be noted that the prestressed steel reinforcement channel of the RC frame beam 6, through which the prestressed steel strands 701 pass, is formed by the PVC pipe placed during the reinforcement binding.

[0046] 3) Align the short steel beam connector 3, the RC frame beam connector 4, and the friction pad 13, and install the pin shaft; align the replaceable energy dissipation device 5, and tighten the left and right bolts to the design values ​​respectively; symmetrically pass the bolts on both sides of the friction energy dissipation device through the outer friction ear plate 303, the inner friction ear plate 401 and the friction pad 13, and then tighten them to the design value.

[0047] 4) In the factory or on the ground at the construction site, the prestressed steel strands 701 are tensioned one by one to the designed tension value and anchored, the composite beam member is hoisted to the preset position, and the short steel beam 203 and the short steel beam connector 3 are connected with high-strength bolts and tightened to the designed value.

[0048] It can be seen from the application of the above technical solutions that the present invention, on the basis of the traditional prefabricated assembled concrete structure, makes full use of the energy consumption characteristics of the replaceable energy dissipation device and the friction energy dissipation device to achieve different energy dissipation modes at different deformation stages. The prestressed steel strand is used as a reset means to achieve a significant reduction in residual deformation after the earthquake. The energy dissipation capacity and reset capacity of the node are effectively improved, and the rapid recovery of the structural function can be achieved by replacing the replaceable energy dissipation component after the earthquake. At the same time, the prestressed tendons are tensioned on the ground and then hoisted in place. The dangerous operation of tensioning the prestressed tendons at high altitude is avoided by bolt connection, making the layout of the structure more flexible and convenient. According to the design method proposed in the present invention, the length of the short steel beam 203, the cross-sectional size of the RC frame beam 6, the strength grade and type (lightweight aggregate concrete, recycled concrete, etc.), the type of friction energy dissipation device (brass friction plate, sandblasting), the material, thickness, shape of the replaceable energy dissipation plate 502, the filling material between the plates and other parameters can be further optimized to achieve the optimized design of this embodiment.

[0049] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An assembled prestressed self-resetting frame beam column with replaceable energy-consuming nodes, characterized in that: It comprises a node core area connection device (2), a short steel beam connection piece (3), an RC frame beam connection piece (4), a replaceable energy dissipation device (5), a self-resetting device (7), a pin shaft (10), and a friction pad (13); The node core area connection device (2) comprises a partition (201), a hoop (202), and a short steel beam (203); the partition (201) is installed in the hoop (202), a circular hole is opened in the middle of the partition (201), and a small hole is opened at the edge of the partition (201) for the column longitudinal reinforcement to pass through; the partition (201) in the hoop (202), the column longitudinal reinforcement, and the column hoop reinforcement tied outside the column longitudinal reinforcement are poured with concrete to form an RC frame column (1) extending along a first direction; the short steel beam (203) is installed outside the hoop (202) along a second direction to achieve the connection between one end of the short steel beam (203) and the hoop (202); the first direction and the second direction are perpendicular to each other; The short steel beam connector (3) comprises a fixing plate (301), an anchoring plate (302), and an outer friction ear plate (303) which are connected in sequence; the RC frame beam connector (4) comprises an inner friction ear plate (401), an RC frame beam connection end plate (402), and an embedded H-shaped steel (403) which are connected in sequence; the fixing plate (301) is connected to the other end of the short steel beam (203); the outer friction ear plate (303), the inner friction ear plate (401), and the friction pad plate (13) which are arranged in sequence from the outside to the inside are connected to form a friction plate. The pin (10) passes through the friction energy dissipation device, and the two are rotatably matched; the anchor plate (302) and the RC frame beam connection end plate (402) are connected via a replaceable energy dissipation device (5); the RC frame beam connection end plate (402) is connected to the beam longitudinal reinforcement (12) located on the side of the RC frame beam connection end plate (402) away from the short steel beam connector (3), and the embedded H-shaped steel (403), the beam longitudinal reinforcement and the beam stirrups tied outside the beam longitudinal reinforcement are formed into an RC frame beam (6) by pouring concrete; The self-resetting device (7) is arranged along the second direction, connected to the anchor plate (302) in sequence, passes through the RC frame beam connecting end plate (402), and the RC frame beam (6), and then is anchored on the RC frame beam anchor end plate (11).

2. The replaceable energy-consuming node of the assembled prestressed self-resetting frame beam column according to claim 1 is characterized in that: Two partitions (201) arranged in parallel along the second direction are installed in the hoop (202); the short steel beam (203) is an H-shaped steel beam, and the two partitions (201) are at the same height as the centroids of the upper and lower flanges of the H-shaped steel beam.

3. The replaceable energy-consuming node of the assembled prestressed self-resetting frame beam column according to claim 1 is characterized in that: The replaceable energy absorbing device (5) comprises a left bottom plate (501) of an energy absorbing plate, an energy absorbing plate (502), and a right bottom plate (503) of an energy absorbing plate; two energy absorbing plates (502) are symmetrically installed between the left bottom plate (501) of the energy absorbing plate and the right bottom plate (503) of the energy absorbing plate; the left bottom plate (501) of the energy absorbing plate is fixed to the anchor plate (302) by a second high-strength bolt, and the third high-strength bolt and the RC frame beam longitudinal reinforcement (12) are respectively connected by a steel sleeve (9), so as to fix the right bottom plate (503) of the energy absorbing plate to the RC frame beam connecting end plate (402).

4. The replaceable energy-consuming node of the assembled prestressed self-resetting frame beam column according to claim 1 is characterized in that: The self-resetting device (7) adopts four groups, each of which includes a prestressed steel strand (701) and an anchor (702); the prestressed steel strand (701) is fixed by the anchor (702) in a diagonal tensioning manner.

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