Swinging self-resetting steel tubular recycled concrete frame with replaceable energy dissipation elements

Abstract

The present invention discloses a rocking self-resetting steel-tube steel recycled concrete frame with replaceable energy-absorbing elements, comprising a concrete base, a steel-tube steel recycled concrete column, and a steel beam. The concrete base is connected to the bottom of the steel-tube steel recycled concrete column via a column bottom curved surface, the outer wall of the steel-tube steel recycled concrete column is connected to the concrete base via an energy-absorbing support plate, and the side wall of the steel-tube steel recycled concrete column is connected to the steel beam via a beam-column energy-absorbing self-resetting structure. Under the action of an earthquake, the node mainly dissipates energy through its own plastic deformation by rocking and rotating, so that the main components in the node basically maintain elasticity, thereby improving the seismic performance under strong earthquakes and effectively reducing the damage to the node.

Description

Technical Field

[0001] The invention belongs to the technical field of earthquake-resistant structures of building structures, and particularly relates to a swinging self-resetting steel-tube steel recycled concrete frame with replaceable energy-consuming elements. Background Art

[0002] Frame structures constructed using traditional seismic design methods typically use rigid joints. Recent earthquake damage both domestically and internationally has shown that concrete frame joint connections are vulnerable points. Due to a lack of ductility, these joints can suffer severe damage after an earthquake, rendering them irreparable and requiring reconstruction, resulting in significant economic losses.

[0003] As people's living standards continue to improve, users' demands for building seismic performance are increasing. Performance-based seismic design has become a widely sought-after research and development area within the earthquake engineering community. While ensuring that buildings remain intact in small earthquakes, repairable in moderate earthquakes, and resistant to collapse in large earthquakes, mitigating earthquake damage and rapidly restoring functional properties is a cutting-edge research topic in the field of seismic resistance.

[0004] Previous earthquake disasters have demonstrated that structural design cannot simply focus on protecting lives during an earthquake. Post-earthquake self-repair and restoration of original functions should be given equal importance to ensure the rapid recovery of life and production in disaster-stricken areas. While rocking frames can effectively reduce earthquake damage, their large rocking deformations increase overturning moments, and the foundation's limited restraint on column bases reduces the structure's ability to resist overturning, increasing the risk of overturning and hindering the full application of its seismic performance. Summary of the Invention

[0005] The purpose of the present invention is to provide a rocking self-resetting steel tubular steel recycled concrete frame with replaceable energy-absorbing elements, which forms plastic deformation when rocking and rotating at the beam-column nodes and column foot nodes, dissipates seismic energy, and thereby reduces earthquake damage and destruction of the nodes.

[0006] The technical solution adopted by the present invention is a rocking self-resetting steel-tube steel recycled concrete frame with replaceable energy-absorbing elements, which includes a concrete base, a steel-tube steel recycled concrete column, and a steel beam. The concrete base is connected to the bottom of the steel-tube steel recycled concrete column through the column bottom curved surface, the outer wall of the steel-tube steel recycled concrete column is connected to the concrete base through an energy-absorbing support plate, and the side wall of the steel-tube steel recycled concrete column is connected to the steel beam through a beam-column energy-absorbing self-resetting structure.

[0007] The present invention is also characterized in that:

[0008] The steel tube steel recycled concrete column includes a cross-shaped steel and a square steel tube. The cross-shaped steel is arranged in the square steel tube, and the bottom of the cross-shaped steel is longer than the square steel tube. Recycled concrete is poured in the square steel tube. The part of the cross-shaped steel located in the square steel tube is the bottom. The cross-shaped steel located outside the square steel tube is connected to one end of the column bottom curved surface by bolts, and the other end of the column bottom curved surface is connected to the concrete base. The outer wall of the bottom of the square steel tube is connected to one edge of the energy-consuming support plate, and the other opposite edge of the energy-consuming support plate is connected to the concrete base.

[0009] Four embedded steels are embedded upward in the concrete base, the width of each embedded steel is smaller than the length of the cross-shaped steel arm, and the four embedded steels contact and connect the cross-shaped steels in different sections.

[0010] The outer wall of the bottom of the square steel tube is connected to an edge of the energy-absorbing support plate through a gasket.

[0011] The bottom curved surface of the column is connected to the concrete base through a plurality of bolts, and the plurality of bolts are located above the bottom curved surface of the column and are respectively sleeved with disc springs.

[0012] The beam-column energy-absorbing self-resetting structure includes two brackets, each bracket has a groove inside, and the bottom of the grooves of the two brackets are respectively connected to the relative positions of the steel tube steel recycled concrete column and the steel beam. A beam end curved panel is placed in the groove of each bracket, and the bracket is connected to the beam end curved panel inside it near the bottom through a support tube. Two branch grooves are opened in each beam end curved panel, and the beam end curved panel has deformation elasticity and also includes an X-shaped rotating shaft. The four ends of the X-shaped rotating shaft extend into the branch grooves of the two beam end curved panels respectively. The X-shaped rotating shaft and the two brackets are all connected to one rotating shaft.

[0013] SMA stranded wire is used to tie the curved panel at the beam end to the outside.

[0014] The depth of the support groove in the curved panel at the beam end is less than the arm length of the X-shaped rotating shaft.

[0015] A plurality of ribs are welded to the outer wall of the curved panel at the beam end.

[0016] The steel tubular steel recycled concrete column and the outer wall of the steel beam are connected by an energy-absorbing plate, and a plurality of holes are provided on the energy-absorbing plate.

[0017] The beneficial effects of the present invention are:

[0018] (1) Under the action of earthquake, the nodes of this structural system mainly dissipate energy through swinging and rotating, so that the energy dissipation plates dissipate energy through their own plastic deformation, so that the main components in the nodes basically maintain elasticity, improve the seismic performance under strong earthquakes, and effectively reduce the damage of the nodes.

[0019] (2) The self-resetting capability of the beam-column joint of the present invention is achieved through the mutual constraint of the X-shaped rotating shaft and the curved plate. The contact area, size and position of the two can be adjusted to meet the needs under different conditions. For larger sizes, additional self-resetting components, such as SMA strands, can be added to increase the reset capability of the beam-column joint, especially the curved plate at the beam end.

[0020] (3) By releasing some of the constraints on the nodes, when a small or medium earthquake occurs, the energy-absorbing plate mainly plays an energy-absorbing role, absorbing the earthquake energy, and the curved plate recovers its original shape through elastic deformation; after a large earthquake, the beam-column node bracket begins to bear force and dissipate energy, the energy-absorbing plate deforms and fails, and all the steel components of the beam-column node are fully utilized to dissipate energy, reducing the damage to the beam and column. The column foot node swings, and the embedded steel undergoes plastic deformation to dissipate energy. Multiple disc springs also significantly improve the self-recovery ability of the structure and provide sufficient time for staff to maintain and repair.

[0021] (4) The energy dissipation plate can evenly share the load-bearing capacity. Opening multiple square holes in the middle of the energy dissipation plate can effectively weaken the cross-sectional area of ​​the energy dissipation support. Under the action of external force, the plastic hinge first appears at the weakened part of the energy dissipation plate, causing the deformation of the node to be transferred and concentrated on the energy dissipation plate, achieving the energy dissipation effect and avoiding large deformation in the middle part.

[0022] (5) At the same time, the main energy-absorbing devices are all fixed to the outside of the structure by bolts. If the energy-absorbing devices are damaged after an earthquake, the corresponding energy-absorbing devices can be quickly replaced by external replacements. If the internal components are unusable, they can also be replaced. All components of the entire beam-column node can be replaced. The number, size, shape and position of the openings of the energy-absorbing plate can be adjusted according to actual conditions. This structure has clear force, reliable force transmission, and the characteristics of segment replacement and rapid recovery after being damaged by strong earthquakes. It solves the problems of poor energy absorption capacity of traditional frame structures and the inability to repair after earthquake damage.

[0023] (6) All components of the present invention can be factory-assembled. By pre-forming holes in the structure, each component can be connected to the column base connection assembly of the concrete foundation assembly through the pre-set connection holes, thereby reducing the requirements for on-site work and shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the swinging self-resetting steel tubular steel recycled concrete frame structure with replaceable energy-consuming elements of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the column foot portion of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection relationship of the column foot part in the present invention;

[0027] Figure 4 It is a horizontal cross-sectional view of the column foot portion of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the curved panel in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the energy dissipation support plate in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the gasket in the present invention;

[0031] Figure 8 It is a structural diagram of the beam-column node in the present invention;

[0032] Figure 9 It is a cross-sectional view of the beam-column node portion of the present invention;

[0033] Figure 10 It is a schematic diagram of the positional relationship between the rotating shaft and the self-resetting component in the present invention;

[0034] Figure 11 Schematic diagram of the connection relationship of the bracket in the present invention;

[0035] Figure 12 It is a structural schematic diagram of the energy dissipation plate in the present invention;

[0036] Figure 13 This is a schematic diagram of the structure in which an SMA stranded wire is additionally added to the beam-column joint of the present invention.

[0037] Among them, 1. Steel beam, 2. Steel tubular steel recycled concrete column, 3. Energy-absorbing support plate, 4. Gasket, 5. Column bottom curved panel, 6. Disc spring, 7. Embedded steel, 8. Concrete base, 9. X-shaped rotating shaft, 10. Beam end curved panel, 11. Bracket, 12. Support tube, 13. Energy-absorbing plate, 14. SMA stranded wire. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] The present invention is a swing self-resetting steel tube steel recycled concrete frame with replaceable energy-consuming elements, such as Figure 1As shown, it includes a concrete base 8, a steel-tube steel recycled concrete column 2, and a steel beam 1. Adjacent steel-tube steel recycled concrete columns 2 are connected to the steel beam 1 through a beam-column energy-absorbing self-resetting structure. The concrete base 8 is connected to the bottom of the steel-tube steel recycled concrete column 2 through a column bottom curved surface 5. The outer wall of the steel-tube steel recycled concrete column 2 is connected to the concrete base 8 through an energy-absorbing support plate 3. The side wall of the steel-tube steel recycled concrete column 2 is connected to the steel beam 1 through a beam-column energy-absorbing self-resetting structure. The column bottom curved surface 5 and the beam-column energy-absorbing self-resetting structure form plastic deformation when the node swings and rotates, dissipating seismic energy, thereby reducing seismic damage and destruction of the node.

[0041] Example 2

[0042] On the basis of Example 1, the steel tube steel recycled concrete column 2 includes a cross-shaped steel and a square steel tube. The cross-shaped steel is arranged in the square steel tube, and the bottom of the cross-shaped steel is longer than the square steel tube. Recycled concrete is poured in the square steel tube. The part of the cross-shaped steel located in the square steel tube is the bottom. The cross-shaped steel located outside the square steel tube is connected to one end of the column bottom curved surface 5 by bolts, and the other end of the column bottom curved surface 5 is connected to the concrete base 8. Figure 2 As shown, the outer wall of the bottom of the square steel tube is connected to one edge of the energy dissipation support plate 3, and the other opposite edge of the energy dissipation support plate 3 is connected to the concrete base 8. When an earthquake occurs, the energy dissipation support plate 3 deforms and dissipates energy through plastic deformation.

[0043] A groove can be preset around the square steel pipe on the same side. The groove width is the thickness of the steel plate and the depth is the insertion depth of the energy dissipation support plate 3. A groove is preset on the outside of the bottom of the square steel pipe for the gasket to clamp into the groove.

[0044] like Figure 3 As shown, the energy dissipation support plate 3 is connected to the steel tube steel recycled concrete column 2 at one end by bolts, and is connected to the concrete base 8 at the other end by bolts; one end of the connected steel tube steel recycled concrete column 2 is inserted into the preset groove of the concrete column, and the outer side surface is flush with the steel tube steel recycled concrete column 2; a groove is preset near the position close to the steel tube steel recycled concrete column 2, for the gasket 4 to clamp the groove; the energy dissipation support plate 3 is provided with multiple square holes, which can effectively weaken the cross-sectional area of ​​the energy dissipation support plate; ribs are added at the corners of the energy dissipation support plate 3 to solve the weak points of the component and concentrate the damage at the cavity.

[0045] like Figure 4 、 Figure 5 As shown, one end of the column bottom curved surface 5 is fixed to the cross-shaped steel flange by bolts, and the other end is connected to the concrete base 8 by multiple bolts. The multiple bolts are located above the column bottom curved surface 5 and are also respectively connected to disc springs 6. The disc springs 6 increase the self-recovery ability of the column foot node; the design of the disc spring 6 should be determined according to parameters such as the designed rotational displacement of the column foot and its self-resetting restoring force.

[0046] like Figure 6 As shown, four embedded steel bars 7 are embedded upward in the concrete base 8, which constrain the position of the steel sections while releasing some of the constraints. The steel sections can be channel steel or square steel tubes, allowing the column foot to swing in the opposite direction of the embedded steel bars. The width of each embedded steel bar 7 is less than the length of the cross-shaped steel arm, and the four embedded steel bars 7 contact and connect the cross-shaped steel sections in different sections. When using square steel tubes, the concrete base 8 is first filled, and the steel bars 7 are embedded in the same rotation direction. The gaps between the steel bars can accommodate the steel sections extending from the steel-tube steel-recycled concrete column 2, which can determine the relative position of the steel sections. The steel sections of the steel-tube steel-recycled concrete column 2 are placed in the gaps between the embedded steel bars 7. The steel sections extending from the steel-tube steel-recycled concrete column 2 will swing in the gaps between the embedded steel bars 7, causing deformation of the column bottom curved panel 5 and the energy-absorbing support plate 3.

[0047] The outer wall of the bottom of the square steel tube is connected to one edge of the energy dissipation support plate 3 by a bolt passing through the gasket 4. The gasket 4 can prevent excessive stress concentration at the bolt position and also prevent the energy dissipation support plate 3 from warping on this side.

[0048] like Figure 7 As shown, the gasket 4 has two rows of protrusions on one side, which can be inserted into the steel tube steel recycled concrete column 2 and the energy dissipation support plate 3 and fixed by bolts to increase the mutual contact between the two, transmit force evenly, and prevent local damage to the components.

[0049] like Figure 8 、 Figure 9 As shown, the beam-column energy-absorbing self-resetting structure includes two brackets 11, each bracket 11 has a groove inside, and the bottom of the grooves of the two brackets 11 are respectively connected to the relative positions of the steel tube steel recycled concrete column 2 and the steel beam 1. The beam end curved panel 10 is placed in the groove of each bracket 11, and the bracket 11 is connected to the beam end curved panel 10 inside it near the bottom through the support tube 11. The support tube 11 can prevent the bracket 11 from partially buckling.

[0050] Example 3

[0051] On the basis of Example 1, Figure 10 、 Figure 11 As shown, two branch grooves are opened in each beam end curved panel 10, and the beam end curved panel 10 has deformation elasticity and also includes an X-shaped rotating shaft 9. The four ends of the X-shaped rotating shaft 9 extend into the branch grooves of the two beam end curved panels 10 respectively. The X-shaped rotating shaft 9 and the two brackets 11 are all connected to a rotating shaft. The steel beam 1 drives the bracket 11 and the beam end curved panel 10 on the same side to swing relative to the X-shaped rotating shaft 9. The X-shaped rotating shaft 9 will cause the beam end curved panels 10 on both sides to deform. The beam end curved panels 10 consume energy through plastic deformation. At the same time, the energy consuming panels on both sides are in a stressed state to consume seismic energy. The beam end curved panels 10 compress the bracket 11 to bear force to consume energy.

[0052] Passing the support tube 11 through the middle of the two branch grooves of the curved panel 10 at the beam end can prevent the bulge formed in the middle of the bracket 11 from deforming due to the hollowness, prevent local deformation, play a fixing role, and also limit the maximum deformation of the curved panel.

[0053] The brackets 11 are arranged in groups of two. To facilitate installation, the support grooves are polished at the connection points so that they can contact each other smoothly. By polishing the support grooves, the maximum mutual rotation angle of the brackets 11 can be controlled. The curved panel 10 at the beam end is fixed on each side by two pins, and the brackets 11 on both sides are connected to the center position through the pins to install the X-shaped rotating shaft 9.

[0054] The X-shaped rotating shaft 9 is inserted into the internal support groove of the curved panel 10 at the end of the beam; it can be composed of multiple X-shaped steel sheets, and the relative positions of the steel sheets are fixed by pins at the four corners; the actual form and size of the rotating shaft are determined according to different actual conditions.

[0055] The bracket fits the actual shape of the design according to the curved panel style of the beam end.

[0056] The depth of the support groove in the beam end curved panel 10 is smaller than the arm length of the X-shaped rotating shaft 9 , so that the beam end curved panel 10 can be deformed relative to the X-shaped rotating shaft 9 when the X-shaped rotating shaft 9 swings.

[0057] The X-shaped rotating shaft 9 can also be replaced by a M-shaped rotating shaft, and correspondingly, three branch grooves are formed in each beam end curved panel 10.

[0058] Example 4

[0059] Based on Example 1, multiple ribs are welded on the outer wall of the beam end curved panel 10 to prevent local buckling of the outer side of the beam end curved panel due to squeezing on both sides of the bracket, so that the beam end curved panel can press the bracket to bear force and consume energy when needed.

[0060] like Figure 12 As shown, the steel tubular steel recycled concrete column 2 is connected to the outer wall of the steel beam 1 via an energy dissipation plate 13 . A plurality of holes are provided on the energy dissipation plate 13 , which can effectively reduce the cross-sectional area of ​​the energy dissipation plate.

[0061] like Figure 13 As shown, the curved beam end panel 10 is externally bound with SMA strands 14 to increase the repositioning capability of the beam-column joint, especially the curved beam end panel.

[0062] The working principle of the swing self-resetting steel tube steel recycled concrete frame with replaceable energy-consuming elements of the present invention is as follows:

[0063] During the installation process, at the beam-column node, the bracket 11-1 can be first installed on the steel beam 1 by bolts; the support tube 12 is fixed to the middle hole of the bracket 11-1 by bolts; the bracket 11-2 is installed on the steel tube steel recycled concrete column 2 by bolts; the support tube 12 is fixed to the middle hole of the bracket 11-2 by bolts; the beam end curved panel 10 and the X-shaped shaft 9 are pressed together. Figure 10 The form is installed in the middle of the bracket 11-2 through two pins; the opposite side of the bracket 11-2 is inserted into the bracket 11-1; it is installed in the middle of the bracket 11-1 through another two pins; the middle hole of the rotating shaft is fixed by the pin; one end of the energy dissipation plate is installed to the steel tube steel recycled concrete column 2 by bolts, and the other end is installed to the steel beam 1 by bolts.

[0064] At the column foot node, first fill the concrete base 8, and at the same time, pre-embed the steel in the same rotation direction. The gap between the steel can be used to place the extended steel of the steel tube steel recycled concrete column 2, and the relative position of the steel can be determined; the steel of the steel tube steel recycled concrete column 2 is placed in the pre-embedded steel gap; one end of the column bottom curved panel 5 is fixed to the steel flange by bolts, and the other end is fixed to the concrete base 8 by a disc spring 6; one end of the energy dissipation support plate 3 is inserted into the reserved gap of the steel tube steel recycled concrete column 2, and the other end is installed on the concrete base 8 by bolts; the protrusion of the gasket 4 is aligned with the groove of the steel tube steel recycled concrete column 2 and the energy dissipation support plate 3, and the position is fixed by bolts.

[0065] During an earthquake, at the beam-column joint, the steel beam 1 drives the curved end panel 10 on the same side to swing relative to the X-shaped rotation axis 9. The X-shaped rotation axis 9 deforms the curved end panels 10 on both sides, dissipating energy through plastic deformation. Simultaneously, the energy dissipation panels on both sides are stressed to dissipate the earthquake's energy. The curved end panels 10 press against the support 11 to dissipate the energy. After a small or medium earthquake, the curved end panel 10 will self-reset due to its inherent characteristics. The energy dissipation panel 13, as the primary energy dissipation device, is inspected to see if it needs replacement. After a major earthquake, the entire joint can be replaced after the joint undergoes irreversible large deformation. At the column base joint, the steel section extending from the steel-tube recycled concrete column 2 swings within the gaps between the embedded steel members, deforming the column base curved panel 5 and the energy dissipation support plate 3. Both undergo plastic deformation to dissipate energy. The disc spring 6 enhances the self-recovery capacity of the column base joint. Utilizing the elastic-plastic properties of the column base curved panel 5 and the disc spring 6, the frame possesses the ability to self-reset through swinging. Most of the seismic energy is consumed by the energy dissipation plate. The plastic hinge first appears at the weakened part of the energy dissipation plate. The deformation of the node is transferred and concentrated on the energy dissipation plate, realizing the energy dissipation function and avoiding excessive mutual displacement of the intermediate components of the node.

Claims

1. A swinging self-resetting steel tubular steel recycled concrete frame with replaceable energy-consuming elements, comprising a concrete base (8), a steel tubular steel recycled concrete column (2), and a steel beam (1), characterized in that: The concrete base (8) is connected to the bottom of the steel tube steel recycled concrete column (2) via the column bottom curved surface (5); the outer wall of the steel tube steel recycled concrete column (2) is connected to the concrete base (8) via the energy-absorbing support plate (3); and the side wall of the steel tube steel recycled concrete column (2) is connected to the steel beam (1) via the beam-column energy-absorbing self-resetting structure; The beam-column energy-absorbing self-resetting structure comprises two brackets (11), each bracket (11) has a groove formed therein, the bottoms of the grooves of the two brackets (11) are respectively connected to the relative positions of the steel tube steel recycled concrete column (2) and the steel beam (1), a beam end curved panel (10) is placed in the groove of each bracket (11), and the bracket (11) is connected to the beam end curved panel (10) inside it near the bottom position through a support tube (12), two branch grooves are formed in each beam end curved panel (10), the beam end curved panel (10) has deformation elasticity, and further comprises an X-shaped rotating shaft (9), the four ends of the X-shaped rotating shaft (9) respectively extend into the branch grooves of the two beam end curved panels (10), and the X-shaped rotating shaft (9) and the two brackets (11) are all connected to a rotating shaft.

2. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: The steel tube steel recycled concrete column (2) comprises a cross-shaped steel and a square steel tube, wherein the cross-shaped steel is arranged in the square steel tube, and the bottom of the cross-shaped steel is longer than the square steel tube, and recycled concrete is poured in the square steel tube, and the portion of the cross-shaped steel located in the square steel tube is the bottom, and the cross-shaped steel located outside the square steel tube is connected to one end of the column bottom curved surface (5) by bolts, and the other end of the column bottom curved surface (5) is connected to the concrete base (8), and the outer wall of the bottom of the square steel tube is connected to one edge of the energy dissipation support plate (3), and the other opposite edge of the energy dissipation support plate (3) is connected to the concrete base (8).

3. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 2 is characterized in that: Four embedded steel materials (7) are embedded upward in the concrete base (8), the width of each embedded steel material (7) is smaller than the length of the cross-shaped steel arm, and the four embedded steel materials (7) contact and connect the cross-shaped steels in different sections.

4. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 2 is characterized in that: The outer wall of the bottom of the square steel tube is connected to an edge of the energy-dissipating support plate (3) via a gasket (4).

5. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: The column bottom curved surface (5) is connected to a concrete base (8) via a plurality of bolts, and the plurality of bolts are located above the column bottom curved surface (5) and are respectively sleeved with disc springs (6).

6. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: The beam end curved panel (10) is externally bound with SMA stranded wires (14).

7. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: The depth of the inner support groove of the beam end curved panel (10) is less than the arm length of the X-shaped rotating shaft (9).

8. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: A plurality of ribs are welded to the outer wall of the beam end curved panel (10).

9. The swing self-resetting steel tubular steel recycled concrete frame with replaceable energy dissipation elements according to claim 1 is characterized in that: The steel tubular steel recycled concrete column (2) is connected to the outer wall of the steel beam (1) via an energy dissipation plate (13), and a plurality of holes are provided on the energy dissipation plate (13).

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