Novel spring self-resetting friction energy dissipation steel support

Abstract

The utility model discloses a novel spring self-resetting friction energy dissipation steel support which comprises a resetting system and a friction energy dissipation system, and the resetting system comprises an inner cylinder, an outer cylinder, a left push-pull rod, a right push-pull rod, a spring baffle and a spiral spring. The friction energy dissipation system comprises two friction energy dissipation device sets which are symmetrically arranged on the two sides of the reset system correspondingly. The two friction energy dissipation device sets are arranged on the left push-pull rod and the right push-pull rod in a sleeving mode correspondingly and fixedly connected with the closed end plates of the outer barrels at the two ends correspondingly. According to the novel spring self-resetting friction energy dissipation steel support, a composite energy dissipation system of'structure double module-function double redundancy-regulation and control double dimensions' is innovatively constructed, rapid replacement of friction plates and field parameter adjustment of a torque wrench are supported, and the novel spring self-resetting friction energy dissipation steel support has the advantages of being recoverable in function, reasonable in stress, simple in structure and convenient and fast to manufacture. And the anti-seismic property requirements of newly-built and existing structure reinforcing projects can be met.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a novel spring self-resetting friction energy-dissipating steel support. Background Technology

[0002] With the expansion of urban building scale and the upgrading of functional requirements, frame-braced structural systems have become the preferred option for lateral force resistance design of multi-story and high-rise buildings due to their advantages such as clear force transmission paths, controllable failure modes, and post-earthquake repairability. Traditional bracing technology has undergone multiple iterations. Early ordinary steel bracing resulted in hysteretic asymmetry and energy dissipation due to buckling under compression. Although buckling-restrained bracing achieves stable energy dissipation by restraining the buckling of the core unit, its irreversible residual deformation after an earthquake and the difficulty in repairing damage still make it difficult to meet the needs of resilient urban development. Against this backdrop, self-resetting energy dissipation bracing, through the collaborative working mechanism of the reset mechanism and energy dissipation elements, has become a research focus for balancing efficient energy dissipation and precise reset.

[0003] While existing seismic bracing technologies have improved structural energy dissipation performance, they still face several core challenges. These systems address the problem of traditional steel instability under compression through external reinforcement, but critical connections often suffer unpredictable damage in practical applications. For example, welded areas or reinforced ends are prone to becoming weak points under strong earthquakes, leading to structural instability. From a construction perspective, complex component processing demands extremely high manufacturing precision. For instance, cutting errors in irregularly shaped steel plates can easily cause quality problems, and the filling materials used in the external restraint layer not only increase the workload of construction but also significantly increase the overall structural weight. More importantly, existing technologies rely on the plastic deformation of steel to dissipate seismic energy. This energy dissipation method can lead to irreversible deformation accumulation, making permanent deformation of buildings unavoidable after an earthquake. This poses a substantial obstacle to post-disaster repair and restoration of building functionality. Furthermore, existing self-resetting bracing structures lack the ability to adjust the interface friction coefficient in real time, requiring disassembly and adjustment, and are inconvenient to maintain and replace after long-term wear.

[0004] Under earthquake conditions, excessive lateral displacement or irrecoverable residual deformation in buildings directly threatens their overall structural stability and can even lead to collapse. This is especially true for damaged buildings or those potentially vulnerable to aftershocks, where persistent residual deformation significantly weakens their subsequent earthquake resistance. When the residual deformation angle reaches a critical value of 0.5%, the cost of repairing the building may exceed the cost of demolition and reconstruction. This unnecessary waste of resources has a significant negative impact on the economic benefits of post-disaster reconstruction. Summary of the Invention

[0005] In view of the aforementioned deficiencies in the prior art, the technical problem to be solved by this utility model is that key connection points in existing seismic bracing technologies suffer unpredictable damage in practical applications, leading to unstable structural performance. Construction is complex, and there is a lack of real-time control over the interface friction coefficient of the self-resetting bracing structure, requiring disassembly and adjustment, and causing inconvenience in maintenance and replacement after long-term wear. Therefore, this utility model provides a novel spring-driven self-resetting friction energy-dissipating steel bracing. Through the innovative construction of a composite energy-dissipating system of "dual-module structure - dual-redundancy function - dual-dimensional control," it effectively solves the problems of large residual deformation, complex construction, and stringent processing precision requirements of traditional self-resetting bracing. This utility model provides a novel spring-driven self-resetting friction energy-dissipating steel bracing that supports rapid replacement of friction plates and on-site parameter adjustment with a torque wrench. It has the advantages of functional recovery, reasonable stress distribution, simple construction, and convenient manufacturing, and can meet the seismic performance requirements of new construction and existing structural reinforcement projects.

[0006] To achieve the above objectives, this utility model provides a novel spring self-resetting friction energy-dissipating steel support, including a reset system and a friction energy-dissipating system. The reset system includes an inner cylinder, an outer cylinder, a left push-pull rod, a right push-pull rod, a spring baffle, and a helical spring. The outer cylinder comprises two parts, each connected to the outer sides of both ends of the inner cylinder, with a closed end plate at one end. The helical spring is disposed between the outer cylinder and the inner cylinder. The non-rod parts (bases) of the left and right push-pull rods are arranged perpendicularly. The spring baffles are nested at the bottom of the left and right push-pull rods, and the helical springs are nested in the left and right push-pull rods, with one end placed at the corresponding spring baffle on each side and the other end connected to the closed end plate of the outer cylinder.

[0007] The friction energy dissipation system includes two friction energy dissipation device groups, which are respectively and symmetrically arranged on both sides of the reset system. The friction energy dissipation device group includes connecting end plate I, connecting end plate II, and friction energy dissipation devices. Each friction energy dissipation device includes two layers of outer friction steel plates, two layers of friction pads, one layer of inner friction steel plate, and two high-strength bolts. The outer friction steel plates are located on the outermost layer, the two layers of friction pads are located on the inner side of the outer friction steel plates, and the inner friction steel plate is located between the two layers of friction pads. The outer friction steel plates, friction pads, and inner friction steel plates are fixed by two high-strength bolts. The inner friction steel plate is not aligned with the outer friction steel plate. One end of the outer friction steel plate is perpendicularly fixed to connecting end plate II, and one end of the inner friction steel plate is perpendicularly fixed to connecting end plate I.

[0008] Two friction energy dissipation device sets are respectively sleeved on the left push-pull rod and the right push-pull rod, and are fixedly connected to the closed end plates of the outer cylinder at both ends.

[0009] Furthermore, the outer and inner cylinders are connected by positive and negative threads, and the initial compression of the helical spring is applied by adjusting the length of the threaded connection to provide the required preload.

[0010] Furthermore, the helical spring is set as a 60Si2MnA spring steel helical spring with a yield strength of 1350MPa, a hardening modulus of 1.2GPa, and a stiffness coefficient of 960N / mm.

[0011] Furthermore, 2-4 sets of friction energy dissipation devices are provided between connecting end plate I and connecting end plate II.

[0012] Furthermore, the friction energy dissipation device comprises five layers: the first and fifth layers are outer friction steel plates, the second and fourth layers are friction pads, and the third layer is an inner friction steel plate. After ensuring the opening positions are aligned, high-strength bolts are passed through the two holes for fixing. After fixing, the two outer friction steel plates are welded to the connecting end plate II, and the inner friction steel plate is welded to the connecting end plate I. The distance between the two outer friction steel plates in a set is sufficient to accommodate two layers of friction pads and one layer of inner friction steel plate.

[0013] Furthermore, connecting end plate I and connecting end plate II are identical, and have a hole in the middle for nesting on the push-pull rod body.

[0014] Furthermore, both the left push bar and the right push bar include a base, with the bottom of the base of the left push bar and the top of the base of the right push bar set on the same plane.

[0015] Furthermore, the inner diameter of the closed end plate of the outer cylinder is consistent with the inner diameter of the spring baffle.

[0016] Furthermore, the diameter of the intermediate opening in connecting end plate I and connecting end plate II is consistent with the inner diameter of the spring baffle.

[0017] Furthermore, it also includes a clamp, which is disposed on one side of the connecting end plate I and / or connecting end plate II for limiting the position.

[0018] Technical effect

[0019] 1. This novel spring-driven self-resetting friction energy-dissipating steel support combines a reset system with an external friction energy-dissipating system. Compared to traditional friction energy-dissipating steel supports without a reset function, this design can significantly reduce or completely eliminate residual deformation after the support undergoes substantial axial deformation, greatly reducing post-earthquake structural repair costs. Existing similar technologies, lacking a reset function, are prone to irreversible residual deformation under strong earthquakes, leading to accumulated inter-story misalignment deformation and affecting normal post-earthquake use. The advantage of this invention lies in effectively controlling residual structural deformation through a self-resetting mechanism, ensuring energy dissipation efficiency during earthquakes, quickly restoring building functionality after earthquakes, reducing maintenance difficulty and costs, and significantly improving the sustainability and functional continuity of the structure.

[0020] 2. This utility model can independently adjust the friction unit on the tension or compression side through asymmetric preload, adapt to asymmetric energy input in earthquakes, and suppress the accumulation of unidirectional energy dissipation damage.

[0021] 3. The independent load transfer path of the dual friction unit of this utility model ensures that it still has the ability to resist progressive collapse when the single-sided friction energy dissipation device fails, thus improving the safety redundancy.

[0022] 4. This utility model adopts a decoupled design of the reset system and the friction system, and the friction energy dissipation system is placed outside the support. The former locks the spring reset force by adjusting the precision thread engagement length to ensure self-reset efficiency, while the latter provides the required energy dissipation capacity by adjusting the bolt preload and different selections of friction plate material. Both can be adjusted independently.

[0023] Overall, this utility model has good engineering application value and prospects for promotion and application, and has good social and economic benefits.

[0024] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a novel spring self-resetting friction energy-dissipating steel support, which is a preferred embodiment of this utility model.

[0026] Figure 2 This is a schematic diagram of the assembly of a novel spring self-resetting friction energy-dissipating steel support according to a preferred embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of a novel spring self-resetting friction energy-dissipating steel support reset system, which is a preferred embodiment of this utility model.

[0028] Figure 4 This is a schematic diagram of a novel spring self-resetting friction energy dissipation steel support friction energy dissipation system according to a preferred embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of a novel spring self-resetting friction energy-dissipating steel support friction plate, which is a preferred embodiment of this utility model. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] In the following description, specific details, such as particular internal procedures and techniques, are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention may be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of the present invention with unnecessary detail.

[0032] This utility model provides a novel spring-driven self-resetting friction-dissipating steel support, comprising a reset system and a friction-dissipating system. The reset system includes an inner cylinder, an outer cylinder, a left push-pull rod, a right push-pull rod, spring baffles, and a helical spring. The outer cylinder comprises two sections, each connected to the outer sides of the inner cylinder, with a closed end plate at one end. The helical spring is positioned between the outer and inner cylinders. The non-rod portions (bases) of the left and right push-pull rods are arranged perpendicularly. Spring baffles are nested at the bottom of the left and right push-pull rods, and the helical springs are nested within the left and right push-pull rods, with one end positioned at the corresponding spring baffle on each side and the other end connected to the closed end plate of the outer cylinder. The outer and inner cylinders are connected by positive and negative threads, and the initial compression of the helical spring is applied by adjusting the thread length to provide the required preload. The helical spring is made of 60Si2MnA spring steel, with a yield strength of 1350MPa, a hardening modulus of 1.2GPa, and a stiffness coefficient of 960N / mm.

[0033] The friction energy dissipation system includes two friction energy dissipation device groups, which are respectively and symmetrically arranged on both sides of the reset system. The friction energy dissipation device group includes connecting end plate I, connecting end plate II, and friction energy dissipation devices. Each friction energy dissipation device includes two layers of outer friction steel plates, two layers of friction pads, one layer of inner friction steel plate, and two high-strength bolts. The outer friction steel plates are located on the outermost layer, the two layers of friction pads are located on the inner side of the outer friction steel plates, and the inner friction steel plate is located between the two layers of friction pads. The outer friction steel plates, friction pads, and inner friction steel plates are fixed by two high-strength bolts. The inner friction steel plate is not aligned with the outer friction steel plate. One end of the outer friction steel plate is perpendicularly fixed to connecting end plate II, and one end of the inner friction steel plate is perpendicularly fixed to connecting end plate I.

[0034] Two friction energy dissipation device sets are respectively sleeved on the left push-pull rod and the right push-pull rod, and are fixedly connected to the closed end plates of the outer cylinder at both ends.

[0035] Two to four sets of friction energy dissipation devices are installed between connecting end plate I and connecting end plate II.

[0036] Specifically, the friction energy dissipation device consists of five layers: the first and fifth layers are outer friction steel plates, the second and fourth layers are friction pads, and the third layer is an inner friction steel plate. After ensuring that the opening positions are aligned, high-strength bolts are passed through the two holes respectively for fixing. After fixing, the two outer friction steel plates are welded to the connecting end plate II, and the inner friction steel plate is welded to the connecting end plate I. The distance between the two outer friction steel plates in a set is sufficient to accommodate two layers of friction pads and one layer of inner friction steel plate.

[0037] Connecting end plate I and connecting end plate II are identical, with a hole in the middle for nesting on the push-pull rod body.

[0038] Both the left push bar and the right push bar include a base, with the bottom of the base of the left push bar and the top of the base of the right push bar on the same plane. The inner diameter of the closed end plate of the outer cylinder is the same as the inner diameter of the spring baffle. The diameter of the intermediate opening of connecting end plate I and connecting end plate II is the same as the inner diameter of the spring baffle.

[0039] Furthermore, it also includes a clamp, which is disposed on one side of the connecting end plate I and / or connecting end plate II for limiting the position.

[0040] like Figure 1-5 As shown, this utility model provides a novel spring-driven self-resetting friction-dissipating steel support, including a reset system and a friction-dissipating system. A helical spring is used as the reset element. The helical spring, inner and outer cylinder components, and spring baffle are connected in series via push-pull rods on both sides to form a pressure-reset system. Different combinations can yield different deformation characteristic curves, enabling it to withstand large loads with minimal deformation and exhibiting no residual deformation after repeated loading. The reset system and the friction-dissipating system are connected by high-strength bolts or welding to form this self-resetting energy-dissipating support. Furthermore, the friction-dissipating device is located on the outside of the support, and the friction material can be brass sheets, allowing for easy replacement after wear. The provided friction force can also be adjusted using a torque wrench.

[0041] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, in this embodiment, the reset system includes a left push-pull rod (3-1) and a right push-pull rod (3-2). These two push-pull rods are identical. The bases of the two push-pull rods are placed vertically and cross each other. The bottom of the base of one push-pull rod is on the same plane as the top of the base of the other push-pull rod, which facilitates the uniform transmission of the support force.

[0042] Two identical spring baffles (4) are concentrically nested at the bottom of the left and right push-pull rods respectively. Each spring baffle should simultaneously contact the top of the push-pull rod base on that side and the push-pull rod base on the other side. When the push-pull rod is subjected to tension or pressure, the force can be evenly transmitted to the helical spring. Similarly, the preload of the helical spring can be evenly transmitted to the supporting components.

[0043] The inner diameter of the spring baffle (4) should be slightly larger than the diameter of the push-pull rod body, and the outer diameter of the spring baffle (4) should be slightly larger than the lateral height of the push-pull rod base.

[0044] The two helical springs (5) are concentrically nested on the rods of the left push-pull rod (3-1) and the right push-pull rod (3-2), with one end abutting against the spring baffle. The helical springs are made of 60Si2MnA steel, with a yield strength of 1350MPa, a hardening modulus of 1.2GPa, and a stiffness coefficient of 960N / mm. Depending on actual needs, such as under asymmetrical seismic loads, helical springs of different materials or stiffness coefficients can be selected on both sides.

[0045] Concentrically insert the inner cylinder (1) of the self-resetting system into the push-pull rod body, and the center point of the inner cylinder should coincide with the midpoint of the line connecting the center points of the two spring baffles (4). The inner diameter of the inner cylinder (1) should be slightly larger than the outer diameter of the spring baffles.

[0046] The outer cylinder (2) of the self-resetting system on both sides is connected to the inner cylinder (1) through positive and negative threads, and the distance of the threaded connection is determined according to the required spring preload and converted into spring precompression length. The construction and assembly of the self-resetting system is thus completed.

[0047] In the self-resetting system, the inner cylinder (1) is not closed at both ends, while the outer cylinder (2) is closed at both ends, and the inner diameter of the closed end plate (6) is the same as the inner diameter of the spring baffle (4). One end of the helical spring rests against the spring baffle, and the other end rests against the closed end plate (6) of the outer cylinder. By changing the threaded connection length between the inner and outer cylinders, the distance between the spring baffle (4) and the closed end plate is changed, thereby changing the compression of the helical spring (5) and applying the spring prestress.

[0048] Next, the friction energy dissipation system is assembled. The friction energy dissipation system includes two friction energy dissipation device groups, and each friction energy dissipation device group includes two friction energy dissipation devices. Each friction energy dissipation device consists of five layers: the first and fifth layers are outer friction steel plates (8), the second and fourth layers are brass friction plates (9), and the third layer is an inner friction steel plate (10). The inner friction steel plate (10) has two round holes at the same position as the brass friction plate (9), which allow two high-strength bolts to pass through and be fixed at the same time. The inner friction steel plate (10) has elongated holes, which allow it to undergo relative displacement with the friction plate (9) and the outer friction steel plate (8).

[0049] Among them, the inner and outer friction steel plates and brass friction are connected by a round hole, an elongated hole in the insertion direction and a high-strength bolt (11) to achieve reciprocating motion and limit. The friction part is squeezed by the high-strength bolt (11) to provide friction force for supporting the friction energy dissipation device.

[0050] Four outer friction steel plates (8) are welded on the connecting end plate II (7-2). To facilitate welding positioning, the two outermost outer friction steel plates are aligned with the edge of the connecting end plate II (7-2). The thickness of two layers of friction plates (9) and inner friction steel plates (10) is reserved between the two outer friction steel plates in each group.

[0051] Two inner friction steel plates (10) are welded on the other side connecting end plate I (7-1). Each inner friction steel plate should be the thickness of one friction plate plus one outer friction steel plate from the edge of the corresponding connecting end plate.

[0052] The connecting end plates on both sides have openings in the middle, with the inner diameter matching that of the spring baffle (4). When connected to the self-resetting system, they are also concentrically nested on the push-pull rod body.

[0053] Connect the connecting end plate II (7-2) on the side of the welded external friction steel plate to the closed end plate (6) of the outer cylinder of the self-resetting system. You can choose to make holes in the connecting end plate and the outer cylinder end plate in advance and connect them dry with high-strength bolts (11), or you can directly weld the connecting end plate to the closed end plate of the outer cylinder.

[0054] Insert the other side connecting end plate I (7-1) into the push-pull rod body, adjust the relative position of the inner friction steel plate (10) and the outer friction steel plate (8), and reserve a reasonable range of relative displacement. After determining the position, you can choose to use a clamp (12) to limit the position and fix this side connecting end plate to the push-pull rod body, or you can directly weld this side connecting end plate to the push-pull rod body.

[0055] Insert a brass friction plate (9) between the outer friction steel plate (8) and the inner friction steel plate (10), and note that the opening position of the brass friction plate (9) coincides with the opening position of the outer friction steel plate (8).

[0056] Insert a high-strength bolt (11) into each pre-drilled hole and apply bolt preload using a torque wrench.

[0057] The novel spring self-resetting friction energy-dissipating steel support of this utility model may also include a main body component, which includes an inner and outer cylinder connector connected by positive and negative threads in the reset system, and a five-layer energy-dissipating device connected by an outer friction steel plate (8), a friction plate (9), an inner friction steel plate (10), and a high-strength bolt (11).

[0058] The specific construction method of this utility model for a novel spring self-resetting friction energy-dissipating steel support is as follows:

[0059] Arrange the push-pull rods vertically in a crisscross pattern. Concentrically nest the spring baffle within the push-pull rod body, placing it against the bottom of the rod. Insert the helical spring, ensuring it passes concentrically through the rod body, with one end resting against the spring baffle. Concentrically insert the spring into the inner cylinder, leaving both sides of the inner cylinder unsealed. At the factory, weld the sealed end plate to one side of the outer cylinder. Then connect the two outer cylinders to the inner cylinder using positive and negative threads, ensuring the other side of the spring rests against the sealed end plate of the outer cylinder. Adjust the length of the threaded connection according to the required spring pre-compression to apply pre-stress to the spring. In the factory, the inner and outer friction steel plates are pre-welded to the corresponding positions on the connecting end plates on both sides. The end plate connecting the outer friction steel plate is welded to the outer cylinder's closed end plate, or connected with high-strength bolts. The relative positions of the inner and outer friction steel plates are then determined, ensuring sufficient relative displacement in both the tension and compression directions. The connecting end plate connecting the inner friction steel plate is then fixed to the push-pull rod body using clamps or welding. A brass friction pad is inserted between the inner and outer friction steel plates, and high-strength bolts are inserted into the pre-drilled holes for fixation. A torque wrench is used to apply pre-tightening force to the bolts. This completes the assembly of the support. When replacing the friction pad, the high-strength bolts can be removed first, and the friction pad can be pulled out for replacement.

[0060] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A novel spring-driven self-resetting friction-dissipating steel support, characterized in that, The device includes a reset system and a friction energy dissipation system. The reset system comprises an inner cylinder, an outer cylinder, a left push-pull rod, a right push-pull rod, a spring baffle, and a helical spring. The outer cylinder comprises two parts, each connected to the outer sides of both ends of the inner cylinder, with a closed end plate at one end. The helical spring is positioned between the outer cylinder and the inner cylinder. The non-rod portions of the left and right push-pull rods are arranged perpendicularly. Spring baffles are nested at the bottom of the left and right push-pull rods, and the helical springs are nested within the left and right push-pull rods, with one end positioned at the corresponding spring baffle on each side and the other end connected to the closed end plate of the outer cylinder. The friction energy dissipation system includes two friction energy dissipation device groups, respectively arranged symmetrically on both sides of the reset system; each friction energy dissipation device group includes a connecting end plate I, a connecting end plate II, and a friction energy dissipation device. Each friction energy dissipation device includes two outer friction steel plates, two friction pads, one inner friction steel plate, and two high-strength bolts. The outer friction steel plates are located on the outermost layer, the two friction pads are located on the inner side of the outer friction steel plates, and the inner friction steel plate is located between the two friction pads. The outer friction steel plates, friction pads, and inner friction steel plates are fixed together by two high-strength bolts. The inner friction steel plate is not aligned with the outer friction steel plate. One end of the outer friction steel plate is perpendicularly fixed to the connecting end plate II, and one end of the inner friction steel plate is perpendicularly fixed to the connecting end plate I. Two friction energy dissipation device sets are respectively sleeved on the left push-pull rod and the right push-pull rod, and are fixedly connected to the closed end plates of the outer cylinder at both ends.

2. The novel spring self-resetting friction energy-dissipating steel support as described in claim 1, characterized in that, The outer cylinder and the inner cylinder are connected by positive and negative threads, and the initial compression of the helical spring is applied by adjusting the length of the thread connection to provide the required pre-pressure.

3. The novel spring self-resetting friction energy-dissipating steel support as described in claim 2, characterized in that, The helical spring is made of 60Si2MnA spring steel, with a yield strength of 1350MPa, a hardening modulus of 1.2GPa, and a stiffness coefficient of 960N / mm.

4. The novel spring self-resetting friction energy-dissipating steel support as described in claim 1, characterized in that, Two to four sets of friction energy dissipation devices are provided between the connecting end plate I and the connecting end plate II.

5. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 4, characterized in that, The friction energy dissipation device consists of five layers. The first and fifth layers are outer friction steel plates, the second and fourth layers are friction plates, and the third layer is an inner friction steel plate. After ensuring that the opening positions are aligned, high-strength bolts are passed through the two holes respectively for fixing. After fixing, the two outer friction steel plates are welded to the connecting end plate II, and the inner friction steel plate is welded to the connecting end plate I. The distance between the two outer friction steel plates in a set is sufficient to accommodate two layers of friction plates and one layer of inner friction steel plate.

6. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 5, characterized in that, Connecting end plate I and connecting end plate II are identical, and have a hole in the middle for nesting on the push-pull rod body.

7. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 1, characterized in that, Both the left push bar and the right push bar include a base, and the bottom of the base of the left push bar and the top of the base of the right push bar are set on the same plane.

8. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 1, characterized in that, The inner diameter of the closed end plate of the outer cylinder is the same as the inner diameter of the spring baffle.

9. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 6, characterized in that, The diameter of the central opening of the connecting end plate I and the connecting end plate II is the same as the inner diameter of the spring baffle.

10. A novel spring-driven self-resetting friction-dissipating steel support as described in claim 1, characterized in that, It also includes a clamp, which is disposed on one side of the connecting end plate I and / or connecting end plate II for limiting the position.

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