Lever amplification type self-resetting hinged support swing frame-steel frame structure and mounting method thereof

Abstract

The invention discloses a lever amplification type self-resetting hinged support swing frame-steel frame structure and a mounting method thereof. The lever amplification type self-resetting hinged support swing frame-steel frame structure comprises a central swing rigid frame, a lever amplification system and a self-resetting displacement damper, the bottom of the middle column is hinged to the foundation through a first pin shaft between the first lug plate and the second lug plate; the side columns are shortened relative to the middle column to form a structural space; the lever amplification system is arranged on two sides of the central swinging rigid frame, comprises a vertical connecting rod, an amplification lever and a plurality of groups of lug plates and pin shaft structures connected with the amplification lever, and is used for realizing transmission and amplification of force and displacement; the upper end and the lower end of the self-resetting displacement damper are hinged to the amplification lever and the foundation respectively. By combining the advantages of a displacement amplification technology and a self-resetting technology, the structure can have excellent energy consumption and self-resetting capabilities under small horizontal displacement.

Description

Technical Field

[0001] The invention belongs to the field of earthquake resistance of building structures and relates to a lever-amplified self-resetting hinged swing frame-steel frame structure and an installation method thereof. Background Art

[0002] The self-resetting hinged rocking frame-steel frame structure system utilizes the rigid body rotation characteristics of the hinged rocking mechanism to control the lateral deformation of the steel frame, effectively eliminating the weak layer phenomenon in traditional steel frame structures. This system achieves post-earthquake structural reset by incorporating self-resetting elements and enhances the system's energy dissipation capacity with displacement dampers. This system demonstrates significant advantages in controlling residual structural deformation and achieving damage concentration. However, existing research indicates that the limited inter-story deformation capacity of traditional steel frame systems restricts the swing amplitude of the hinged rocking frame, limiting the deformation of the displacement dampers and hindering their effective energy dissipation capacity. In particular, when conventional displacement dampers are used, their irreversible plastic deformation leads to significant residual displacement accumulation. While the use of self-resetting dampers improves reset performance, it also reduces the structure's energy dissipation efficiency under small displacement conditions. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a lever-amplified self-resetting hinged swing frame-steel frame structure and its installation method. By combining the advantages of damper displacement amplification technology and self-resetting technology, the structure can have both excellent energy consumption and self-resetting capabilities under smaller horizontal displacements.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A lever-amplified self-resetting hinged swing frame-steel frame structure, comprising a central swing rigid frame, a first pin shaft, a second lug plate, a lever-amplifying system and a self-resetting displacement damper; The center column and side columns form a central swing rigid frame through multiple sets of cross beams, and the lever amplification system and self-resetting displacement dampers are symmetrically arranged on both sides of the center column; The bottom of the center column is hingedly connected to the foundation through the first pin between the first ear plate and the second ear plate; the side columns are shortened relative to the center column to form a structural space; the lever amplification system is arranged on both sides of the center column, including a vertical connecting rod, an amplification lever and multiple groups of ear plates and pin structures connected thereto, which are used to realize the transmission and amplification of force and displacement; the upper and lower ends of the self-resetting displacement damper are hinged to the amplification lever and the foundation respectively.

[0005] Preferably, the upper end of the vertical connecting rod is hingedly connected to the side column through a second pin between the third ear plate and the fourth ear plate.

[0006] Preferably, one end of the amplifying lever is connected to the third pin between the fifth ear plate, the sixth ear plate and the vertical connecting rod, and the other end is hingedly connected to the triangular support frame through the seventh ear plate and the fourth pin.

[0007] Furthermore, the triangular support frame includes an H-shaped steel short column, a splint, a seventh bottom plate and an eighth bottom plate, the H-shaped steel short columns are connected to each other through the splint, the seventh ear plate is welded to the top of the H-shaped steel short column (30) through the eighth bottom plate, and the bottom is connected and fixed to the foundation through the seventh bottom plate.

[0008] Preferably, the upper end of the self-resetting displacement damper is connected to the amplifying lever through the eighth ear plate, the ninth ear plate and the fifth pin, and the lower end is connected to the base through the tenth ear plate, the eleventh ear plate and the sixth pin.

[0009] Preferably, the cross beams are arranged in multiple layers between the center column and the side columns, and cross beam stiffening ribs are provided to enhance the rigidity of the central rocking rigid frame.

[0010] Preferably, the center column and the side columns are both H-shaped steel members, the center column is provided with a first center column stiffening rib in the horizontal direction and a second center column stiffening rib in the vertical direction, and the side columns are provided with a first side column stiffening rib in the horizontal direction and a second side column stiffening rib in the vertical direction.

[0011] Preferably, the diagonal braces are arranged between the layers, and the bottom layer is installed in an inverted herringbone arrangement.

[0012] Preferably, diagonal braces are provided between the side columns and each layer of cross beams.

[0013] A method for installing the lever-amplified self-resetting hinged swing frame-steel frame structure includes the following steps: Installing a center column on the base platform, connecting it to the first ear plate through the first bottom plate, and connecting it to the second ear plate through the second bottom plate, and inserting a first pin between the first ear plate and the second ear plate to form a hinged connection of the center column; Install side columns symmetrically on both sides of the central column, connect the side columns to the central column through cross beams, and set the cross beams in multiple layers in the structure; The diagonal braces are set between the central column and the side columns and fixedly connected to form a rigid frame; The lever amplification system is installed between the side column and the foundation, including a vertical connecting rod and an amplifying lever. The upper end of the vertical connecting rod is hinged to the side column, and the lower end is hinged to one end of the amplifying lever. The other end of the amplifying lever is connected to the triangular support frame on the foundation to form a rotation fulcrum. The upper end of the self-resetting displacement damper is connected to the end of the amplifying lever, and the lower end is connected to the foundation to form a hinge.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention constructs a controllable swing mechanism through a hinged node at the bottom of the central column: under the action of an earthquake, the swing frame forms a rigid body rotation response around the node; at the same time, the lever amplification system can stimulate significant energy consumption capacity under a relatively small horizontal displacement through the displacement gain effect, thereby synergistically reducing the seismic response of the structure and inhibiting the development of plastic deformation of the steel frame. The displacement-type self-resetting damper has good residual deformation control characteristics, and its residual deformation after the earthquake tends to zero; the excess reset force generated is amplified by the lever system and transmitted to the main structure, forming an additional reset torque, which significantly improves the post-earthquake deformation recovery capacity of the overall structure. The structural earthquake energy consumption is concentrated in the displacement-type self-resetting damper. After the earthquake, the structure can be quickly restored to its functional state without repairing or replacing the self-resetting damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the lever-amplified self-resetting hinged swing frame-steel frame structure of the present invention; Figure 2 A perspective view of the lever-amplified self-resetting hinged swing frame-steel frame structure of the present invention; Figure 3 Schematic diagram of the lug-pin hinge point of the present invention; Figure 4 Schematic diagram of the base plate of the present invention; Figure 5 An exploded diagram of the amplification system of the present invention; Figure 6 Schematic diagram of the H-shaped short column of the present invention.

[0016] Among them: 1. Center column, 2. Side column, 3. Crossbeam, 4. Diagonal brace, 5. First side column stiffener, 6. Crossbeam stiffener, 7. First center column stiffener, 8. Second center column stiffener, 9. First base plate, 10. First ear plate, 11. First pin, 12. Second ear plate, 13. Second base plate, 14. Second side column stiffener, 15. Third base plate, 16. Third ear plate, 17. Second pin, 18. Fourth ear plate, 19. Fourth base plate, 20. Vertical connecting rod, 21. Fifth base plate , 22. Fifth ear plate, 23. Third pin shaft, 24. Sixth ear plate, 25. Sixth base plate, 26. Seventh ear plate, 27. Fourth pin shaft, 28. Eighth base plate, 29. Clamp, 30. H-shaped steel short column, 31. Seventh base plate, 32. Amplifying lever, 33. Ninth base plate, 34. Eighth ear plate, 35. Fifth pin shaft, 36. Ninth ear plate, 37. Self-resetting displacement damper, 38. Tenth ear plate, 39. Sixth pin shaft, 40. Eleventh ear plate, 41. Tenth base plate. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internally connected between two elements or an interactive relationship between two elements. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0021] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] like Figure 1 As shown, a lever-amplified self-resetting hinged swing frame-steel frame structure described in this embodiment includes a central swing rigid frame, two sets of symmetrically arranged lever-amplification systems and a self-resetting displacement damper 37. In combination with the claims and the drawings in the specification, the implementation method of this structural system is fully and detailed described below.

[0023] like Figure 1 and Figure 2 As shown, the central rocking rigid frame consists of a central column 1, two side columns 2 symmetrically arranged on either side of the central column 1, multiple layers of crossbeams 3 connecting the central column 1 and side columns 2, and diagonal braces 4 provided at each layer. The bottom of the central column 1 is connected to the foundation via a hinged node formed by a first lug 10, a second lug 12, and a first pin 11. The rotation plane of this node coincides with the structural plane. The first lug 10 is welded to the bottom of the central column 1 via a first base plate 9, and the second lug 12 is welded to the foundation via a second base plate 13, thus ensuring stable support and rigid rotation of the central column 1.

[0024] The height of the side columns 2 is reduced by half the ground floor height relative to the center column 1 to provide structural space for the installation of the lever amplification system. The center column 1, side columns 2, crossbeams 3, and diagonal braces 4 are all constructed of H-shaped steel. Furthermore, a first horizontal center column stiffener 7 and a second vertical center column stiffener 8 are welded to the center column 1. A first horizontal side column stiffener 5 and a second vertical side column stiffener 14 are welded to the side columns 2. Crossbeam stiffeners 6 are welded to the crossbeam 3 to enhance their load-bearing properties and improve overall structural stability.

[0025] like Figure 5 and Figure 6 As shown, two symmetrically arranged lever amplification systems are located on either side of the central swing frame. Each lever amplification system comprises a vertical connecting rod 20, a triangular support frame, and an amplification lever 32. The upper end of the vertical connecting rod 20 is hinged to the side column 2 via a third lug 16, a fourth lug 18, and a second pin 17. The third lug 16 is welded to the side column 2 via a third base plate 15, and the fourth lug 18 is welded to the upper end of the vertical connecting rod 20 via a fourth base plate 19. The lower end of the vertical connecting rod 20 is connected to the amplification lever 32 via a fifth lug 22, a fifth base plate 21, and a third pin 23. The sixth lug 24 is welded to the amplification lever 32 via a sixth base plate 25. It is pivotally connected to the amplification lever 32 by enclosing the fifth lug 22 and inserting into the third pin 23.

[0026] The vertical connecting rod 20 and the amplifying lever 32 both adopt a box-shaped cross-section to improve their bending rigidity and meet the requirements of force transmission and deformation amplification. The amplifying lever 32 forms a rotation fulcrum with the triangular support frame through the fourth pin 27.

[0027] The triangular support frame consists of a seventh lug 26 and a pair of H-beam short columns 30. The H-beam short columns 30 are cut into a Γ-shaped notch at the top during machining. Clamping plates 29 are welded to either side of the midsection for a stable connection. The bottom is welded to the foundation via a seventh base plate 31. The seventh lug 26 is welded to the top of the H-beam short columns 30 via an eighth base plate 28. Together with the fourth pin 27, the seventh lug 26 forms the pivot point for the amplifying lever 32.

[0028] The key dimensional relationship of the above lever magnification system is: the magnification depends on l 1 / l 2, among which l 1 is the axial distance from pin 23 to pin 27, l 2 is the distance between the axis of the pin 27 and the pin 35; at the same time, it should meet l 1≥ θl 3 conditions, among which, θ is the rotation angle of the frame during earthquake, l 3 is the length of the bottom brace 4. By adjusting the geometric parameters, the displacement amplification capability of the system can be significantly improved to maximize the leverage effect.

[0029] The upper and lower ends of the self-resetting displacement damper 37 are hinged to the amplifying lever 32 and the base, respectively. Its upper end is connected to the amplifying lever 32 via the eighth lug 34, the ninth lug 36, and the fifth pin 35. The eighth lug 34 is welded to the end of the amplifying lever 32 via the ninth base plate 33, and the ninth lug 36 is welded to the upper end of the self-resetting displacement damper 37. The lower end of the self-resetting displacement damper 37 is hinged to the base via the tenth lug 38, the eleventh lug 40, and the sixth pin 39. The eleventh lug 40 is fixed to the base via the tenth base plate 41, forming a hinged connection.

[0030] Bolt holes are provided in the second base plate 13, the seventh base plate 31, and the tenth base plate 41, allowing them to be fixed to the foundation with high-strength bolts, ensuring a secure and reliable connection. The entire system is constructed from Q355 steel to ensure that the components remain elastic under seismic disturbances, preventing plastic failure.

[0031] Through this lever-amplified self-resetting hinged rocking frame structural system, under the action of seismic loads, the central rocking rigid frame can form a rigid body rotation around the first pin shaft 11, and the generated horizontal displacement is amplified by the lever system and transmitted to the self-resetting displacement damper 37, so that it can fully play an energy-absorbing role under the action of a smaller displacement; at the same time, since the self-resetting displacement damper 37 is a self-resetting type, it itself has the characteristics of small residual deformation and strong recoverability, which can reduce the residual deformation after the earthquake to a minimum, which is conducive to the rapid repair of the structure after the earthquake.

[0032] Furthermore, by adjusting the mechanical properties and lever geometry of the self-resetting displacement dampers 37, the structure's self-resetting and energy dissipation capabilities can be actively controlled, ensuring excellent adaptability to varying earthquake intensities. Seismic energy dissipation is concentrated in the self-resetting displacement dampers 37, while the main structure remains elastic or slightly deformed. Post-earthquake, only damaged self-resetting displacement dampers 37 need to be replaced to quickly restore structural functionality, significantly improving the maintainability and cost-effectiveness of the engineering application.

[0033] The installation method of the lever-amplified self-resetting hinged swing frame-steel frame structure includes the following steps: 1. Assembly of the central swing rigid frame.

[0034] The center column 1 is installed on the foundation platform. The first ear plate 10 is welded to the bottom of the center column through the first base plate 9. The second ear plate 12 is fixed to the foundation through the second base plate 13 and hinged to the center column 1 through the first pin 11 to form a swingable node. The two side columns 2 are symmetrically arranged on both sides of the central column 1 and reinforced by the first side column stiffening rib 5 and the second side column stiffening rib 14 .

[0035] The multi-layer cross beam 3 is welded to connect the center column 1 and the side column 2, and cross beam stiffening ribs 6 are arranged to enhance the rigidity of the component.

[0036] The diagonal braces 4 are arranged between each layer. The bottom layer is arranged in an inverted herringbone pattern, while the upper layer is arranged in the opposite direction and is welded to the central column 1 and the side column 2 to form a stable structure.

[0037] 2. Assembly of the lever amplification system.

[0038] Install the vertical connecting rod 20: the upper end is welded to the side column 2 and the vertical connecting rod 20 through the third ear plate 16 and the fourth ear plate 18 respectively, and is hinged with the second pin 17; the lower end is welded to the vertical connecting rod 20 and the amplifying lever 32 through the fifth ear plate 22 and the sixth ear plate 24 respectively, and the third pin 23 is inserted for connection.

[0039] Install the triangular support frame: install two H-shaped steel short columns 30 vertically on the foundation, connect them into a whole through the plywood 29, and fix them with the seventh base plate 31; the seventh ear plate 26 is welded to the top of the H-shaped steel short column 30 through the eighth base plate 28, providing a rotation fulcrum for the amplification lever 32.

[0040] Install the amplification lever 32: one end is hinged to the vertical connecting rod 20, and the middle part of the lever is connected to the seventh ear plate 26 through the fourth pin 27 to form a fulcrum for the lever action; the amplification lever 32 reserves pin holes to meet the assembly requirements of each pin, and adjusts the installation position to achieve the designed amplification ratio.

[0041] 3. Assembly of the self-resetting displacement damper 37.

[0042] The upper end is hinged to the ninth ear plate 36 through the eighth ear plate 34 , and is respectively welded to the end of the amplification lever 32 and the upper end of the damper, and the connection is completed by the fifth pin 35 .

[0043] The lower end is hinged to the eleventh ear plate 40 through the tenth ear plate 38, which is welded to the lower end of the self-resetting displacement damper 37 and the foundation respectively. The eleventh ear plate 40 is fixed to the foundation through the tenth bottom plate 41, and the sixth pin shaft 39 is inserted to realize the hinge.

[0044] 4. Check the overall system connection.

[0045] Confirm whether all pins are inserted in place and whether the ear plate holes are accurate; check the quality of the ear plates, base plates and welds to ensure there are no welding defects; level the structure and adjust the position of the vertical connecting rod 20 and the amplifying lever 32 if necessary to ensure system stability.

[0046] 5. Preparation for acceptance.

[0047] After assembly is completed, the function of the entire system is tested, such as whether the central swing rigid frame can rotate smoothly around the pin shaft 11; check whether the amplified displacement of the lever system is effectively transmitted to the self-resetting displacement damper 37, and whether the self-resetting displacement damper 37 has a self-resetting function; verify whether all connection parts are reliably fastened and whether the overall system meets the design expectations.

[0048] In addition, the system also has the advantages of convenient construction, clear structure, and easy maintenance. It is suitable for the seismic design of steel structure buildings in high-intensity areas. It can be widely used in industrial plants, commercial buildings, high-rise steel structures and other fields, and has broad promotion value.

[0049] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0050] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0051] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0052] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0053] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

[0054] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

Claims

1. A lever-amplified self-resetting hinged swing frame-steel frame structure, characterized in that: It includes a central rocking rigid frame, a lever amplification system and a self-resetting displacement type damper (37); The center column (1) and the side columns (2) form a central swing rigid frame through multiple groups of cross beams (3), and the lever amplification system and the self-resetting displacement damper (37) are symmetrically arranged on both sides of the center column (1); The bottom of the center column (1) is hingedly connected to the foundation through a first pin (11) between a first ear plate (10) and a second ear plate (12); the side column (2) is shortened relative to the center column (1) to form a structural space; a lever amplification system is arranged on both sides of the center column (1), including a vertical connecting rod (20), an amplification lever (32) and a plurality of groups of ear plates and pin structures connected thereto, for realizing the transmission and amplification of force and displacement; the upper and lower ends of the self-resetting displacement damper (37) are hingedly connected to the amplification lever (32) and the foundation respectively.

2. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: The upper end of the vertical connecting rod (20) is hingedly connected to the side column (2) via a second pin (17) between the third ear plate (16) and the fourth ear plate (18).

3. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: One end of the amplifying lever (32) is connected to the third pin (23) between the fifth ear plate (22), the sixth ear plate (24) and the vertical connecting rod (20), and the other end is hingedly connected to the triangular support frame through the seventh ear plate (26) and the fourth pin (27).

4. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 3 is characterized in that: The triangular support frame comprises an H-shaped steel short column (30), a splint (29), a seventh bottom plate (31) and an eighth bottom plate (28), wherein the H-shaped steel short columns (30) are connected to each other through the splint (29), the seventh ear plate (26) is welded to the top of the H-shaped steel short column (30) through the eighth bottom plate (28), and the bottom is connected and fixed to the foundation through the seventh bottom plate (31).

5. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: The upper end of the self-resetting displacement damper (37) is connected to the amplifying lever (32) through the eighth ear plate (34), the ninth ear plate (36) and the fifth pin (35), and the lower end is connected to the base through the tenth ear plate (38), the eleventh ear plate (40) and the sixth pin (39).

6. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: The cross beams (3) are arranged in multiple layers between the central column (1) and the side columns (2), and cross beam stiffening ribs (6) are provided to enhance the rigidity of the central swing rigid frame.

7. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: The center column (1) and the side column (2) are both H-shaped steel members. The center column (1) is provided with a first center column stiffening rib (7) in the horizontal direction and a second center column stiffening rib (8) in the vertical direction. The side column (2) is provided with a first side column stiffening rib (5) in the horizontal direction and a second side column stiffening rib (14) in the vertical direction.

8. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: The diagonal braces (4) are arranged between each layer, and the bottom layer is installed in an inverted herringbone arrangement.

9. The lever-amplified self-resetting hinged swing frame-steel frame structure according to claim 1 is characterized in that: Diagonal braces (4) are provided between the side columns (2) and each layer of cross beams (3).

10. A method for installing the lever-amplified self-resetting hinged swing frame-steel frame structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: A center column (1) is installed on the base platform, connected to the first ear plate (10) via the first base plate (9), and connected to the second ear plate (12) via the second base plate (13), and a first pin (11) is inserted between the first ear plate (10) and the second ear plate (12) to form a hinged connection of the center column (1); Side columns (2) are symmetrically installed on both sides of the central column (1), and the side columns (2) are connected to the central column (1) through cross beams (3), and the cross beams (3) are arranged in multiple layers in the structure; The diagonal brace (4) is arranged between the central column (1) and the side column (2), and fixedly connected to form a rigid frame; The lever amplification system is installed between the side column (2) and the foundation, including a vertically arranged connecting rod (20) and an amplification lever (32), the upper end of the vertical connecting rod (20) is hinged to the side column (2), and the lower end is hinged to one end of the amplification lever (32), and the other end of the amplification lever (32) is connected to the triangular support frame on the foundation to form a rotation fulcrum; The upper end of the self-resetting displacement damper (37) is connected to the end of the amplifying lever (32), and the lower end is connected to the foundation to form a hinge.

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