CN117822763A

CN117822763A - Sliding damping device

Info

Publication number: CN117822763A
Application number: CN202410244650.4A
Authority: CN
Inventors: 孙香红; 史忠冉; 轩云鹏; 陈涛; 余冬; 甘照圆; 赵子康
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-04-05
Anticipated expiration: 2044-03-05
Also published as: CN117822763B

Abstract

The invention provides a sliding damping device, which belongs to the field of engineering structure damping, wherein the upper end and the lower end of a steel column are respectively connected with an upper girder and a lower girder; the upper end of the rigid plate is connected with the bottom of the upper main beam; the sliding energy consumption units are arranged between the steel column and the rigid plate in parallel from bottom to top, and one end of a sliding limiter of each sliding energy consumption unit is connected with the steel column; one end of each energy consumption steel plate is inserted into the sliding limiter, the other end of each energy consumption steel plate is connected with the rigid plate, and the middle part of each energy consumption steel plate is provided with a corrugated steel plate; the distances between one end of the energy consumption steel plate of the plurality of groups of sliding energy consumption units and the steel column are increased sequentially from bottom to top, and the distance between one end of the energy consumption steel plate at the lowest end and the steel column is zero; the invention can provide additional damping force required by small, medium and large earthquake for the building structure, and more earthquake energy is dissipated, thereby enhancing the ductility of the structure and preventing the main structure of the building from generating excessive deformation.

Description

Sliding damping device

Technical Field

The invention belongs to the field of engineering structure shock absorption, and particularly relates to a sliding damping device.

Background

Traditional earthquake-resistant structure resists earthquake action by enhancing earthquake-resistant performance (strength, rigidity and ductility) of the structure, and under the action of strong earthquake, the main structural members can be damaged greatly, so that post-earthquake repair is difficult. The energy dissipation and shock absorption technology of the building structure can effectively reduce the earthquake reaction and damage of the main structure by arranging the damper at the appointed part of the structure to dissipate most of the energy of the earthquake input structure. The metal mild steel damper is widely applied to the engineering anti-seismic field due to the simple mechanical model, clear energy consumption mechanism, excellent hysteresis performance, stable working performance and better durability and economy.

However, most metal dampers are designed based on single-stage yielding energy consumption of medium or large earthquakes, the energy consumption level is single, the metal dampers can only yield and consume energy in the stage under the medium or large earthquakes, the metal dampers are in an elastic state under the small earthquakes, and the earthquake-resistant requirements under the earthquakes with different intensities are difficult to meet. The existing part of damper can yield and consume energy in small earthquake, but the rigidity added to the structure is larger, so that the earthquake shearing force is greatly increased, and the structure is unfavorable in small earthquake. Some dampers can enter a plastic energy consumption stage in an elastic stage and a middle-vibration stage in small vibration, but the rigidity of the damper is almost lost in large vibration, and the interlayer shearing force of a main body structure in large vibration cannot be effectively shared.

In order to adapt to the earthquake actions of different intensity levels and improve the shock absorption performance and the reliability level of the structure, the research of the staged yield type metal damper is started. The staged yielding dampers primarily solve the problem of single energy consumption level of the traditional metal damper. For example, chinese patent No. 201610802540.0 discloses an invention patent named "a combined staged yielding metal damper", which combines a friction damper and a metal damper to realize staged energy consumption at different stages of an earthquake, but the staged yielding damper has the disadvantages of progressive decline in rigidity, weak deformability and insignificant staged yielding effect, and a portion which yields in advance in small or medium earthquake is easily damaged due to excessive deformation in the event of a major earthquake or very rare earthquake. The enhancement degree of the multi-order yield bearing capacity is limited, and the energy consumption function under strong vibration is difficult to realize efficiently.

In summary, when the small, medium and large shocks of different levels occur, the yield bearing capacity of the existing damper is limited to be improved, so that the earthquake energy is difficult to be effectively dissipated, and the main structure of the building is damaged due to overlarge deformation.

Disclosure of Invention

In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a slip damping device, comprising:

the upper end and the lower end of the steel column are respectively connected with an upper girder and a lower girder between the building layers;

the upper end of the rigid plate is connected with the bottom of the upper main beam, and the rigid plate and the steel column are arranged in parallel in the vertical direction;

the multiunit power consumption unit that slides from bottom to top parallel arrangement is between steel column and rigid plate, every group power consumption unit that slides includes:

one end of the sliding limiter is connected with one side of the steel column;

one end of each energy consumption steel plate is inserted into the sliding limiter, the other end of each energy consumption steel plate is connected with the rigid plate, and the middle part of each energy consumption steel plate is a corrugated steel plate;

the distance between one end of the energy consumption steel plate of the plurality of groups of sliding energy consumption units and the steel column is sequentially increased from bottom to top.

Preferably, each set of said slip energy consuming units further comprises:

the cushion block is positioned in the sliding limiter, and one end of each group of two energy consumption steel plates of the sliding energy consumption unit is symmetrically arranged on the outer side of the cushion block in parallel along the vertical direction;

The two limiting clamping plates are located inside the sliding limiter, the two limiting clamping plates are located outside one ends of the two energy consumption steel plates respectively, and the two limiting clamping plates, the two energy consumption steel plates and the cushion block are sequentially clamped from outside to inside and are connected through a plurality of fasteners.

Preferably, the sliding limiter comprises a column connecting plate, an upper partition plate, a lower support plate and a transverse limiting plate, wherein one side of the column connecting plate is connected with one side of the steel column, the transverse limiting plate is parallel to the column connecting plate along the vertical direction, the upper partition plate and the lower support plate are parallel to each other along the horizontal direction, one end of the upper partition plate is connected with the upper end of the column connecting plate, the other end of the upper partition plate is connected with the upper end of the transverse limiting plate, one end of the lower support plate is connected with the lower end of the column connecting plate, the other end of the lower support plate is connected with the lower end of the transverse limiting plate, a rectangular opening is formed in the transverse limiting plate, and one end of the energy-consumption steel plate is inserted into the sliding limiter through the rectangular opening and is kept at a preset distance with the column connecting plate.

Preferably, the horizontal distances between the column connecting plates and the transverse limiting plates of the sliding energy consumption units are different, and the horizontal distances between the column connecting plates and the transverse limiting plates of the sliding energy consumption units are sequentially increased from bottom to top, and the horizontal distance between the column connecting plate and the transverse limiting plate of the sliding energy consumption unit positioned at the lowest position is equal to the width of the limiting clamping plate.

Preferably, each energy consumption steel plate further comprises a first connecting plate and a second connecting plate; one end of the first connecting plate is inserted into the sliding limiter through the rectangular opening, and the other end of the first connecting plate is connected with the corrugated steel plate; one end of the second connecting plate is connected with the rigid plate, and the other end of the second connecting plate is connected with the other end of the corrugated steel plate; the cross section of the limiting clamp plate is a concave steel plate, the concave direction of the limiting clamp plate is close to one side of the cushion block, and the bottom plates of the two limiting clamp plates of each group of sliding energy consumption units are detachably connected with the two first connecting plates and the cushion block, sequentially clamped from outside to inside and connected through a plurality of bolts; the corrugated steel plate comprises a plurality of wave crests, and the wave forms or wave crests of the corrugated steel plates of the energy consumption steel plates of the plurality of groups of sliding energy consumption units are different in number.

Preferably, the buffer plate comprises two transverse plates and an arc plate connected with one end of the two transverse plates, the two transverse plates are respectively connected with the bottom of the upper main beam and the top of the steel column, and the buffer plate is made of soft steel materials.

Preferably, the steel column further comprises a plurality of transverse stiffening ribs, and the transverse stiffening ribs are arranged on two sides of the steel column web plate.

Preferably, the support device further comprises a diagonal rod support unit, one end of the diagonal rod support unit is hinged with the side wall of the lower end of the steel column through a first connecting member, and the other end of the diagonal rod support unit is connected with the top of the lower main beam through a second connecting member.

Preferably, the first connecting member comprises an end plate and two baffles, the two baffles are positioned at two ends of the end plate in the vertical direction, and the end plate and the two baffles are connected with the side wall of the lower end of the steel column; the second connecting member comprises a sliding block and a sliding groove, the sliding groove is embedded in the lower main beam, the opening of the sliding groove is upward, and the sliding block slides in the sliding groove.

Preferably, the diagonal bracing unit comprises a central plate and a sleeve, and the sleeve is sleeved outside the central plate; a gap between the sleeve and the central plate is provided with a filling material; the upper end of the central plate is hinged with the end plate, and the lower end of the central plate is hinged with the vertical plate at the top of the sliding block.

The sliding damping device provided by the invention has the following beneficial effects:

according to the invention, the plurality of groups of sliding energy consumption units are arranged between the steel column and the rigid plate, and as the distances between one end of the energy consumption steel plates of the plurality of groups of sliding energy consumption units and the steel column are sequentially increased from bottom to top, when an earthquake occurs, the sliding energy consumption units can sequentially enter a working state according to the sequence of the sliding distances from small to large, and when the earthquake level is small earthquake, the energy consumption steel plates of the sliding energy consumption units positioned at the lowest position generate damping force on the steel column, but do not slide; when the earthquake grade is middle earthquake, the steel column moves to the side close to the rigid plate, and when one end of the energy-consumption steel plate is contacted with the steel column, the energy-consumption steel plate of the sliding energy-consumption unit positioned at the lowest part and the energy-consumption steel plate of the sliding energy-consumption unit positioned in the middle simultaneously generate damping force on the steel column; when the earthquake level is a major earthquake, the steel column continues to move to the side close to the rigid plate, and when one end of the energy consumption steel plate of the uppermost sliding energy consumption unit is contacted with the steel column, damping force is generated on the steel column by the energy consumption steel plates of the three groups of sliding energy consumption units at the same time; in addition, the energy consumption steel plates of the plurality of groups of sliding energy consumption units are provided with corrugated steel plates and have different mechanical properties, so that the damper can realize 'fixed point yield' while guaranteeing to provide enough resistance, the yield point is the crest of the corrugated steel plates, the damage position is controllable, and the energy consumption performance is stable. The invention realizes the rigidity addition during the middle earthquake and the large earthquake, and the damping force is increased along with the increase of the interlayer displacement of the main body structure, so that the building structure has enough damping force when encountering the effects of small earthquake, middle earthquake and large earthquake of different levels, and can effectively dissipate the earthquake energy, so that the main body structure of the building can not generate excessive deformation.

Drawings

In order to more clearly illustrate the embodiments of the present invention and the design thereof, the drawings required for the embodiments will be briefly described below. The drawings in the following description are only some of the embodiments of the present invention and other drawings may be made by those skilled in the art without the exercise of inventive faculty.

FIG. 1 is a schematic diagram of a slip damping device according to the present invention;

FIG. 2 is a set of slip energy dissipating units according to the present invention;

FIG. 3 is an exploded view of a set of slip energy dissipating units according to the present invention;

FIG. 4 is a schematic diagram of three sets of displacement-controlled slip energy dissipation units according to the present invention;

FIG. 5 is a schematic view of a buffer plate and steel column of the present invention;

FIG. 6 is an exploded view of a buffer plate and steel column of the present invention;

FIG. 7 is a schematic diagram of a diagonal bracing unit system according to the present invention;

FIG. 8 is an exploded view of the diagonal bracing unit system of the present invention;

FIG. 9 is a schematic view of an installation of a frame or frame shear structure interlayer concrete beam;

FIG. 10 is a schematic diagram illustrating the symmetrical layout and installation of a frame or frame shear structure interlayer concrete beam;

FIG. 11 is a schematic view of the installation of a frame or frame shear structure interlayer steel beam;

FIG. 12 is a schematic diagram illustrating the symmetrical layout and installation of inter-layer steel beams of a frame or frame shear structure;

FIG. 13 is a schematic diagram of reinforcement and installation of a frame or frame shear structure interlayer concrete beam by a steel wrapping method;

FIG. 14 is a graph of energy consumption hysteresis;

FIG. 15 is a loading speed diagram;

FIG. 16 is a schematic diagram of the working principle of the slip damping device;

FIG. 17 is a second schematic diagram of the operating principle of the slip damping device;

FIG. 18 is a schematic diagram III of the working principle of the slip damping device;

FIG. 19 is a schematic diagram of a slip damping device according to a fourth principle of operation;

FIG. 20 is a schematic diagram of the operating principle of the slip damping device;

FIG. 21 is a schematic view of three different sets of slip limit slip limiters;

FIG. 22 is an exploded view of the slip limiter;

FIG. 23 is a schematic view of a restraint splint;

FIG. 24 is a schematic view of an upper concrete girder and a rigid plate;

FIG. 25 is a schematic view of a power consuming steel sheet of three sets of slip power consuming units for different control displacements;

FIG. 26 is a schematic view of the positions of the energy dissipating steel plate, the limiting clamp plate and the cushion block;

FIG. 27 is an exploded view of the energy dissipating steel plate, the limit clamping plate and the cushion block.

Reference numerals illustrate:

1-steel column, 11-stiffening rib, 2-upper girder, 21-reinforced concrete girder, 211-angle steel, 212-first batten plate, 213-second batten plate, 22-steel girder, 3-lower girder, 4-rigid plate, 5-slip energy consumption unit, 51-slip limiter, 511-column connecting plate, 512-upper partition plate, 513-lower supporting plate, 514-transverse limiting plate, 52-cushion block, 53-energy consumption steel plate, 531-corrugated steel plate, 532-first connecting plate, 533-second connecting plate, 54-limiting splint, 6-buffer plate, 7-diagonal bracing unit, 71-central plate, 72-sleeve, 8-first connecting member, 81-end plate, 82-baffle, 9-second connecting member, 91-slide block, 92-slide groove, 10-bolt.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention and implement it, the present invention will be described in detail with reference to the drawings and the specific embodiments. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the technical solutions of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more, and will not be described in detail herein.

Example 1

The present invention provides a slip damping device, particularly as shown in fig. 1 to 27, comprising: steel column 1, rigid plate 4 and multiunit slip power consumption unit 5. Two ends of the steel column 1 are respectively connected with an interlayer upper main beam 2 and a interlayer lower main beam 3. The upper girder 2 and the lower girder 3 between the building layers refer to girders positioned on the upper layer and girders positioned on the lower layer of two adjacent layers of the building. In the invention, a rigid plate 4 and a steel column 1 are arranged in parallel in the vertical direction, and the upper end of the rigid plate is connected with the bottom of an upper main beam 2; the multiple groups of sliding energy consumption units 5 are arranged between the steel column 1 and the rigid plate 4 in parallel from bottom to top, and each group of sliding energy consumption units 5 comprises a sliding limiter 51, a cushion block 52, two energy consumption steel plates 53 and two limiting clamping plates 54. One end of the sliding limiter 51 is connected with one side, close to the rigid plate 4, of the steel column 1; the cushion block 52 is positioned inside the sliding limiter 51; one end of each energy consumption steel plate 53 is inserted into the sliding limiter 51, is symmetrically arranged outside the cushion block 52 in parallel along the vertical direction, the other end of each energy consumption steel plate 53 is distributed on two sides of the rigid plate 4 and is connected with the rigid plate 4, the middle part of each energy consumption steel plate 53 is provided with a corrugated steel plate 531, the corrugated steel plates 531 are formed by connecting a plurality of semicircular arc steel plates in an S shape, each semicircular arc steel plate is provided with a wave crest, and two corrugated steel plates 531 of each group of sliding energy consumption units 5 are far away from or near to each other along the two wave crests at the same position along the length direction of the upper girder 2; the two limiting clamping plates 54 are located inside the sliding limiter 51, the two limiting clamping plates 54 are located on the outer side of one end of the two energy consumption steel plates 53, and the two limiting clamping plates 54, the two energy consumption steel plates 53 and the cushion block 52 are sequentially clamped from outside to inside and are connected through a plurality of fasteners. In this embodiment, the multiple sets of sliding energy dissipation units 5 are three sets, the distance between one end of the energy dissipation steel plate 53 of the sliding energy dissipation unit 5 positioned at the lowest end and the sliding limiter 51 is zero, that is, one end of the energy dissipation steel plate 53 is in abutting connection with the sliding limiter 51, the distance between the two ends of the energy dissipation steel plate 53 of the sliding energy dissipation unit 5 positioned at the upper end and the steel column 1 is approximately zero, the distances between the two ends of the energy dissipation steel plate 53 of the sliding energy dissipation unit 5 and the steel column 1 are sequentially increased from bottom to top, when an earthquake happens, the steel column 1 is driven by the lower main beam 3 to generate displacement, when the earthquake level is small, the energy dissipation steel plate 53 of the sliding energy dissipation unit 5 positioned at the lowest end provides damping force for the steel column 1, but the energy dissipation steel plate 53 does not slide, and the crest of the corrugated steel plate 531 generates fixed point yield; when the earthquake level is a middle earthquake, the steel column 1 moves to the side close to the rigid plate 4, the distance between one end of the energy consumption steel plate 53 and the steel column 1 gradually decreases along with the movement of the steel column 1, and when one end of the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned in the middle in the vertical direction is contacted with the steel column 1, the lowest sliding energy consumption unit 5 and the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned in the middle simultaneously provide damping force for the steel column 1; when the earthquake level is a major earthquake, the steel column 1 continues to move to the side close to the rigid plate 4, the distance between one end of the energy consumption steel plate 53 of the uppermost sliding energy consumption unit 5 and the steel column 1 gradually decreases along with the movement of the steel column 1, and when one end of the energy consumption steel plate 53 of the uppermost sliding energy consumption unit 5 is contacted with the steel column 1, the energy consumption steel plates 53 of the three groups of sliding energy consumption units 5 simultaneously provide damping force for the steel column 1. In summary, the three groups of sliding energy dissipation units 5 from bottom to top can gradually dissipate energy generated by small earthquake, medium earthquake and large earthquake through displacement of the steel column 1, damping force of the energy dissipation steel plates 53 on the steel column 1 and fixed point yield generated by wave crests of the corrugated steel plates 531.

The sliding limiter 51 is fixed on the steel column 1, generates cooperative displacement with the steel column 1, and provides a limiting support with a certain sliding distance for the energy-consumption steel plate 53. The sliding limiter 51 specifically comprises a column connecting plate 511, an upper partition plate 512, a lower support plate 513 and a transverse limiting plate 514, wherein one side of the column connecting plate 511 is connected with one side of a steel column 1, the transverse limiting plate 514 is arranged in parallel with the column connecting plate 511 along the vertical direction, the upper partition plate 512 and the lower support plate 513 are arranged in parallel along the horizontal direction, one end of the upper partition plate 512 is connected with the upper end of the column connecting plate 511, the other end of the upper partition plate 512 is connected with the upper end of the transverse limiting plate 514, one end of the lower support plate 513 is connected with the lower end of the column connecting plate 511, the other end of the lower support plate 513 is connected with the lower end of the transverse limiting plate 514, a rectangular opening is formed in the transverse limiting plate 514, one end of each energy consumption steel plate 53 is inserted into the sliding limiter 51 through the rectangular opening and has a certain distance with the column connecting plate 511, and the width of the rectangular opening is larger than the distance between two mutually far peaks, which are located at the same position along the length direction of the upper main beam 2, of the corrugated steel plates 531 corresponding to be inserted into the two energy consumption steel plates 53. The horizontal distances between the column connecting plates 511 and the transverse limiting plates 514 of the sliding energy dissipation units 5 are different, and the horizontal distances between the column connecting plates 511 and the transverse limiting plates 514 of the sliding energy dissipation units 5 are sequentially increased from bottom to top, and the horizontal distance between the column connecting plates 511 and the transverse limiting plates 514 of the sliding energy dissipation unit 5 positioned at the lowest position is equal to the width of the limiting clamping plate 54. The sliding limiters 51 provide a certain sliding distance and limit the sliding distance by adjusting the horizontal distance between the column connecting plates 511 and the transverse limiting plates 514, and are divided into three groups according to different sliding limit values: a small-shock non-slip limiter 51, a medium-shock small-slip limiter 51 and a large-shock large-slip limiter 51.

In the present embodiment, each energy consumption steel plate 53 includes a first connection plate 532, a second connection plate 533, and a corrugated steel plate 531, one end of the first connection plate 532 is inserted into the slip stopper 51 through a rectangular opening, the other end is connected with the corrugated steel plate 531, one end of the second connection plate 533 is connected with the rigid plate 4, and the other end is connected with the other end of the corrugated steel plate 531. The corrugated steel plate 531 includes a plurality of peaks, and the waveforms or the number of peaks of the corrugated steel plate 531 of the energy consumption steel plate 53 of the plurality of sets of slip energy consumption units 5 are different. According to the invention, the horizontal sliding displacement during small earthquake, medium earthquake and large earthquake is correspondingly set according to the limiting requirement of the interlayer displacement angle of the relevant standard, and the thickness, the sagittal ratio, the number of semicircular arc-shaped steel plates of the corrugated steel plate 531, the ripple function and other key dimensions of the energy-consumption steel plate 53 are designed differently according to the relevant standard and the design requirement, and the method is divided into: a small earthquake non-slip energy consumption steel plate 53, a medium earthquake small slip energy consumption steel plate 53 and a large earthquake large slip energy consumption steel plate 53. The cross section of the limiting clamp plate 54 is a concave steel plate, the concave direction of the limiting clamp plate 5 is close to one side of the cushion block 52, the bottom plates of the two limiting clamp plates 54 of each group of sliding energy consumption units 5 are sequentially clamped with the two first connecting plates 532 and the cushion block 52 from outside to inside and are connected through a plurality of fasteners, specifically, the two first connecting plates 532 of the sliding energy consumption units 5 are respectively connected with the two limiting clamp plates 54 on the outer side and the middle cushion block 52 through friction type high-strength bolts 10, and the two second connecting plates 533 are connected with the rigid plate 4 through friction type high-strength bolts 10. The rigid plate 4 provides a fixed support for the energy consumption steel plate 53, and the limiting clamping plate 54 contacts with the column end sliding limiter 51 or the column connecting plate 511 or the transverse limiting plate 514 when the horizontal sliding amount of the energy consumption steel plate 53 reaches a limiting value, so that interlayer displacement of a main body structure is transmitted, and the energy consumption steel plate 53 is horizontally stretched or compressed, and energy consumption capability is provided.

In addition, the buffer plate 6 is arranged between the upper main beam 2 and the steel column 1, the buffer plate 6 comprises two transverse plates and an arc plate connected with one end of the two transverse plates, the two transverse plates are respectively connected with the bottom of the upper main beam 2 and the top of the steel column 1, the buffer plate 6 is made of soft steel, wherein a transverse plate positioned below is connected with the steel column 1 through welding, and a transverse plate positioned at the upper end is connected with the bottom of the upper main beam 2 through an embedded part; the sliding energy consumption unit 5 can work cooperatively with the buffer plate 6, the buffer plate 53 can reduce the calculated height of the steel column 1, improve the Euler critical instability bearing capacity, greatly reduce the shearing force transmitted to the steel column 1 by the upper main beam 2, greatly improve the stability of the steel column 1, and simultaneously, the force transmission path of the main structure of the building is not changed, so that the original main structure is ensured to work according to the designed using conditions.

The invention is also provided with a diagonal rod supporting unit 7, the diagonal rod supporting unit 7 is obliquely arranged between the lower main beam 3 and the steel column 1, one end of the diagonal rod supporting unit 7 is hinged with the side wall of the lower end of the steel column 1 through a first connecting member 8, and the other end of the diagonal rod supporting unit is connected with the top of the lower main beam 3 through a second connecting member 9. Specifically, the first connecting member 8 includes an end plate 81 and two baffles 82, the two baffles 82 are located at two ends of the end plate 81 in the vertical direction, and the end plate 81 and the two baffles 82 are welded with the side wall of the lower end of the steel column 1; the second connecting member 9 includes a slider 91 and a slide groove 92, the slide groove 92 is embedded in the lower main beam 3, and the opening is upward, and the slider 91 slides in the slide groove 92. The diagonal bracing unit 7 comprises a central plate 71 and a sleeve 72, wherein the sleeve 72 is sleeved outside the central plate 71; the upper end of the center plate 71 is hinged with the end plate 81, and the lower end is hinged with a vertical plate on the top of the slider 91. The sliding energy consumption unit 5 also works cooperatively with the diagonal rod supporting unit 7 and the second connecting member 9, the second connecting member 9 is provided with the same sliding limit value as the middle-shock small sliding energy consumption unit 5, and the sliding block 91 slides in the sliding groove 92 to contact with the lower main beam 3 when reaching the maximum sliding value, so that limit occurs. When a small earthquake occurs, the horizontal sliding amount of the lower end of the inclined rod supporting unit 7 is smaller than the sliding limit value, and the inclined rod supporting unit does not enter a working state; when the middle earthquake and the large earthquake occur, the horizontal sliding quantity reaches the maximum limit value and contacts with the lower main beam 3, limiting occurs, the horizontal sliding quantity starts to enter a working state, support is provided for the steel column 1, the overall stability of the steel column 1 is improved to ensure that the steel column 1 provides stable supporting conditions for energy consumption components, meanwhile, the inclined rod supporting unit 7 also provides certain anti-seismic rigidity, the shearing force between earthquake layers is shared, and the safety of a main body structure is further protected.

In this embodiment, the steel column 1 is an i-steel column, and the plurality of transverse stiffening ribs 11 are arranged at intervals inside the i-steel column, so that the strength of the steel column 1 is increased.

The sliding damping device is arranged between the frame or frame shear structure layers, so that the ductility and the shearing capacity of the frame or frame shear structure can be greatly increased, the earthquake energy can be well dissipated under the action of an earthquake, the safety of a main structure is ensured, and the sliding damping device can enter a plastic development stage when small relative displacement occurs between the frame or frame shear structure layers, can have full hysteresis curves no matter small earthquake, medium earthquake or large earthquake, and fully and stably dissipates the earthquake energy.

See fig. 9, 11 and 13. The upper girder 2 of the invention can be a reinforced concrete girder 21 or a girder 22, and when the upper girder 2 is a reinforced concrete girder 21, the rigid plate 4 can be connected with the bottom of the reinforced concrete girder 21 through an embedded part and can be connected with the girder 22 through a bolt connection or a welding mode. The slip stopper 51 may be connected to the steel column 1 by bolting or welding. In the reinforcement engineering of the girder of the frame or the frame shear structure, when the upper girder 2 is reinforced by adopting an outer-wrapping steel reinforcement method, a wet outer-wrapping steel reinforcement method (filling gaps are formed by epoxy resin structural glue and sealing glue, and the reinforcing steel 211 is adhered to the reinforced concrete girder 21) or a dry outer-wrapping steel reinforcement method (filling gaps are formed by cement latex instead of filling epoxy resin structural glue in the reinforcing steel 211, so that the reinforcing steel 211 and the reinforced concrete girder 21 are stressed together to form a stressed whole, on the basis, a plurality of first lacing plates 212 are welded at equal intervals according to relevant specifications to reinforce the reinforcing steel 211, and then a lengthened second lacing plate 213 is welded at a position close to the steel column 1, and the steel column 1 is connected with the lengthened second lacing plate 213 in a welding mode.

Further, referring to fig. 10 and 12, the damping device of the present invention may be symmetrically mounted between layers in use. The symmetrical installation has the advantages that the sliding damping device at one side provides tension to the beam end and the column end, the sliding damping device at the symmetrical side provides pressure to the beam end and the column end, and the two forces form a pair of self-balancing force systems with equal magnitudes and opposite directions, so that the bearing capacity of the frame or the frame shear structure is not insufficient, and the lateral displacement is overlarge and is damaged.

However, because of the mutual cooperation of the professions in the engineering, the structural profession needs to cooperate with other professions (such as water heating electricity) to run the pipeline under the beam, and sometimes symmetrical arrangement of the sliding damping devices is not realistic, and two solutions exist in the invention aiming at the problem: (1) before construction: this problem can be solved at the design stage. The invention has reasonable energy consumption design, easily achieved yield load, full hysteresis curve, stable energy consumption performance, and various parameters such as initial rigidity K, yield displacement x, yield force F and the like of the energy consumption steel plates 53 with different sliding sections can be obtained through reliable experiments and finite element simulation, and various parameters can be obtained rapidly through the way of curve fitting through experiments and the like, so that the counterforce generated by the invention can be applied to the structure in advance to carry out structural design very conveniently, thereby meeting various requirements. (2) After construction (e.g., reinforcement engineering): because the sliding energy consumption unit 5 is modularized and replaceable, the sliding energy consumption unit 5 with different yield displacement, yield load and limit load can be adopted for specific engineering, thereby well meeting the specific requirements of the engineering.

Meanwhile, referring to fig. 7 and 8, the slip energy consumption unit 5 of the present invention may work in cooperation with the diagonal bracing unit 7. The diagonal bracing unit 7 is arranged in the structure by a single diagonal, and is cooperated with the main structure by a single diagonal arrangement scheme. The upper end of the diagonal rod supporting unit 7 is connected with a first connecting member 8 through a pin shaft, the first connecting member 8 is welded with the steel column 1, the lower end of the diagonal rod supporting unit is connected with a second connecting member 9 through a pin shaft, the second connecting member 9 is connected with the top end of the lower main beam 3 through an embedded part, the second connecting member 9 can be regarded as a sliding support for constraint, and certain horizontal sliding displacement is provided for the diagonal rod supporting unit 7 and limited according to design requirements. The diagonal bracing unit 7 can well form a combined energy consuming system working together with the slip energy consuming unit 5 of the present invention. At the moment, if horizontal earthquake acts on the structure, the diagonal bracing unit 7 can provide certain anti-seismic rigidity, prevent overlarge relative displacement between layers and play a certain role in energy consumption during middle earthquake and large earthquake.

Meanwhile, referring to fig. 5 and 6, a buffer plate 6 may be installed at the top end of the steel column 1 and cooperate. The concrete implementation scheme is that a transverse plate below the buffer plate 6 is connected with the steel column 1 through welding, and a transverse plate above the buffer plate is connected with the bottom of the upper main beam 2 through an embedded part through welding, and then a combined energy consumption system working together with the invention is formed. When a vertical earthquake acts, the buffer plate 6 is used as a connecting member between the steel column 1 and the upper main beam 2, so that the calculated height of the steel column 1 can be reduced. The buffer plate 6 can improve the critical instability bearing capacity of Euler, meanwhile, the shearing force of the upper beam is not obviously transmitted to the steel column 1, the force transmission path of the main body structure is not changed while the stability of the steel column 1 is greatly improved, and the original main body structure is ensured to work according to the designed using conditions.

In detail, referring to fig. 14, 15 and 25, through multiple finite element modeling analysis verification, the following rules can be obtained: (1) The larger the radius of the semicircular arc-shaped steel plates is, the more the semicircular arc-shaped steel plates are stretched, the smaller the turning of force flow is, the smoother the force transfer is, and the higher the bearing capacity of the energy consumption steel plates 53 is, so that the radii of the semicircular arc-shaped steel plates of the three groups of energy consumption steel plates 53 are sequentially increased from bottom to top; (2) The greater the number of peaks of the dissipative steel sheet 53, the better the ductility of the steel sheet, and the greater the amount of deformation the steel sheet can withstand. When a major earthquake occurs, the corrugated steel plates 531 of the two lower energy consumption steel plates 53 are deformed firstly in the process of increasing earthquake energy in the minor earthquake and the middle earthquake, and the uppermost energy consumption steel plate 53 is deformed later in the process of increasing earthquake energy in the major earthquake, so the requirement on the deformation amount of the uppermost energy consumption steel plate 53 is smaller, and the number of wave peaks of the uppermost energy consumption steel plate 53 can be smaller than the number of wave peaks of the two lower energy consumption steel plates 53. Those skilled in the art can make various technical solutions according to the design rule and with reference to the following embodiments. For example: the lowermost group of energy consumption steel plates 53 in fig. 25 is a small-vibration and slip-free energy consumption steel plate 53, each corrugated steel plate 531 is formed by connecting three identical semicircular arc steel plates in an S shape, and has three wave peaks, and the radius of each semicircular arc steel plate is 75mm; the second group of energy consumption steel plates 53 from bottom to top in fig. 25 is a middle-vibration small-slippage energy consumption steel plate 53, each corrugated steel plate 531 is formed by connecting three identical semicircular arc steel plates in an S shape, and has three wave peaks, the radius of the semicircular arc steel plates takes 80mm, and a larger additional damping force is provided; the uppermost group of energy consumption steel plates 53 in fig. 25 is the energy consumption steel plates 53 with large earthquake and large slippage, each corrugated steel plate 531 is formed by connecting two semicircular arc steel plates in an S shape, two peaks are arranged, the radius of each semicircular arc steel plate takes a value of 87mm, the structural ductility is increased while the energy consumption capability is improved, and the safety reserve is improved. Further, the invention can flexibly set the waveform, wave crest and number of the semicircular arc-shaped steel plates of the corrugated steel plates 531 in the middle of the energy consumption steel plate 53, so that the energy consumption steel plate 53 provides different damping forces and meets different design requirements. Further, referring to fig. 14, the plumpness and smoothness of the hysteresis curve of the present invention can reflect that the present invention has the following characteristics: (1) the invention uses the small earthquake non-slip energy dissipation unit 5 to dissipate energy in the small earthquake displacement stage, the energy dissipation is faster when the earthquake small displacement stage is entered into the plastic stage, the yield load is moderate, and the hysteresis curve is full; (2) furthermore, when the earthquake energy is larger in middle earthquake, the interlayer displacement is further increased, the small earthquake non-slip energy dissipation unit 5 is utilized to overlap the slip energy dissipation unit 5 with the small middle earthquake slip to dissipate energy, hysteresis curves are overlapped with each other, the hysteresis curve area is larger, and the earthquake resistance rigidity is improved and the energy dissipation capacity is enhanced. (3) When the earthquake is in a large earthquake with larger earthquake energy, the interlayer displacement is further increased, and the earthquake energy dissipation unit 5 with small earthquake and no slip is used for superposing the slip energy dissipation unit 5 with small earthquake and large slip and the slip energy dissipation unit 5 with large earthquake in the large earthquake displacement stage, so that the hysteresis curve is full, and the earthquake energy dissipation device is still provided with enough ductility and strong energy dissipation capability in the large earthquake.

See, in particular, fig. 4, 13. The rigid plate 4 provides a fixed support for the energy consumption steel plate 53 and transmits interlayer displacement of the main body structure, so that the energy consumption steel plate 53 horizontally stretches or compresses, and the energy consumption capability is improved. The sliding limiter 51 is fixed on the steel column 1, generates cooperative displacement with the steel column 1, and provides a limiting support with a certain sliding distance for the energy-consumption steel plate 53. The energy consumption steel plate 53 can provide different resistance and energy consumption under different earthquake energy inputs, and can realize dynamic energy consumption. The stress process of the main body structure can be divided into three dynamic energy consumption stages according to the magnitude of earthquake energy. The first stage of stress of the invention is a small earthquake stage. At this time, when the small earthquake does not slip, the energy consumption steel plate 53 of the lowest slip energy consumption unit 5 generates fixed-point buckling deformation, and enters a plastic stage to consume energy, the maximum stress position is at the crest of the corrugated steel plate 531, and the upper two groups of slip energy consumption units 5 do not enter a working state; the second stage is middle earthquake with larger earthquake energy, interlayer displacement is further increased, the energy consumption steel plates 53 of the two groups of sliding energy consumption units 5 positioned below consume energy together, and the energy consumption steel plate 53 of the uppermost sliding energy consumption unit 5 does not enter a working state; the third stage is a large earthquake with larger earthquake energy, the interlayer displacement is further increased, and at the moment, the energy consumption steel plates 53 of the three groups of sliding energy consumption units 5 work together, so that the energy consumption capacity is maximum.

In detail, referring to fig. 17, the energy dissipating steel plate 53 is subjected to a tensile force F in a section ₁ In this case, taking the energy consumption steel plate 53 formed by connecting two semicircular arc steel plates in an S manner as an example, the rigidity k of the energy consumption steel plate 53 is calculated as follows:

in the method, in the process of the invention,is the elongation of the corrugated steel plate 531 after the micro-segment length is stressed and deformed>Deformation of the individual semicircular arc-shaped steel plates as the corrugated steel plates 531 +.>For the deformation of the individual first connection plate 532 or second connection plate 533, +.>For the total deformation of the corrugated steel plate 531 +.>Is the micro-segment length of the corrugated steel plate 531,F ₁ in order to apply tension to the section of the energy-dissipating steel plate 53,Eis the modulus of elasticity of the material,bto consume energy in the width of the cross section of the steel plate 53,tto consume the cross-sectional thickness of the steel plate 53,Ato consume the cross-sectional area of the steel plate 53,ris the radius of the semicircular arc-shaped steel plate of the corrugated steel plate 531,Lthe length of the first connection plate 532 and the second connection plate 533 is the length of the energy consumption steel plate 53.

In detail, referring to fig. 21 to 27, the slip stopper 51, the cushion block 52, the limiting clamping plate 54, the rigid plate 4 and the energy-dissipating steel plate 53 are manufactured by a prefabrication method in a factory, and the factory prefabrication can avoid unstable stress performance caused by rolling and welding in a construction site. The specific method comprises the following steps: (1) cutting out a column connecting plate 511, an upper partition plate 512, a lower support plate 513 and a transverse limiting plate 514, making a middle rectangular hole in the transverse limiting plate 514, and then connecting the column connecting plate 511, the upper partition plate 512, the lower support plate 513 and the transverse limiting plate 514 in a welding manner; (2) punching the two plates to form two limiting clamping plates 54, and manufacturing middle bolt holes of the limiting clamping plates 54 on the two limiting clamping plates; (3) cutting two plate bodies with different sizes to respectively serve as a rigid plate 4 and a cushion block 52, and respectively manufacturing bolt holes of the rigid plate 4 and bolt holes of the cushion block 52 on the two plate bodies; (4) cutting a plurality of groups of rectangular mild steel plates, rolling a plurality of groups of corrugated steel plates 531 at the middle position to achieve the purposes of buckling deformation, fixed point yielding and definite stress, and forming energy consumption steel plates 53 by arranging bolt holes at the two end positions; in the construction site, the energy consumption steel plate 53 is connected with the rigid plate 4, the limiting clamping plate 54 and the cushion block 52 in a bolt connection mode, so that displacement coupling is realized, and good stress performance is ensured.

Further, referring to fig. 6 and 8, the auxiliary structure buffer plate 6 and the diagonal member support unit 7 are manufactured by a prefabrication method in a factory, and the specific steps are as follows: (1) cutting a rectangular mild steel plate and manufacturing a buffer plate 6 by rolling; (2) cutting baffle plates 82 and end plates 81 with different sizes, forming pin shaft holes in the middle of the end plates 81, and then connecting the baffle plates 82 and the end plates 81 in a welding mode; (3) cutting a sliding block 91, milling a sliding groove 92 to form a concave-shaped sliding groove 92, cutting a vertical plate and the sliding block 91, forming a pin shaft hole at a designated position of the vertical plate, and then connecting the vertical plate and the sliding block 91 in a welding mode; (4) cutting rectangular steel bars, manufacturing a sleeve 72 by adopting a stamping process, cutting a steel plate, forming pin shaft holes at designated positions at two ends according to the size requirement, manufacturing a central plate 71 by welding connection, nesting the central plate 71 with the sleeve 72, and filling a gap inside the sleeve 72 with a non-adhesive material; in the construction site, the diagonal rod supporting unit 7 is connected with the first connecting member 8 and the second connecting member 9 through the pin shafts, so that displacement coupling is realized, and good stress performance is ensured.

Further, referring to fig. 5, the steel column 1 is manufactured by a prefabrication method in a factory, and the specific steps are as follows: (1) the billet is heated to a high temperature state and then rolled to finally form the required steel column 1; (2) and cutting a plurality of groups of steel plates required as transverse stiffening ribs 11, and then connecting the steel column 1 and the transverse stiffening ribs 11 in a welding mode.

All welding processes are prefabricated in a factory and assembled on site by adopting bolts, so that unstable welding stress performance of a construction site is avoided, weak positions are avoided, and early damage is avoided; the required materials are all the existing varieties of domestic steel products in the market, corresponding steel products with different types can be selected for assembly according to design requirements, and the steel products are convenient to produce and easy to popularize.

Working principle: when an earthquake happens, the steel column 1 generates displacement, and when the earthquake level is small, the energy consumption steel plates 53 of the sliding energy consumption units 5 positioned at the lowest part generate damping force on the steel column 1, but do not move, and the wave crests of the corrugated steel plates 531 generate fixed-point yield; when the earthquake level is a middle earthquake, the steel column 1 slides to the side close to the rigid plate 4, the distance between one end of the energy consumption steel plate 53 and the steel column 1 gradually decreases along with the movement of the steel column 1, when one end of the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned in the middle in the vertical direction contacts with the steel column 1, the steel column 1 stops moving, and the lowest sliding energy consumption unit 5 and the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned in the middle simultaneously generate damping force on the steel column 1, namely when the earthquake level is a middle earthquake, the displacement of the steel column 1 increases, and the lower two groups of the energy consumption steel plates 53 of the sliding energy consumption units 5 simultaneously generate damping force on the steel column 1; when the earthquake level is a major earthquake, the steel column 1 continues to move to the side close to the rigid plate 4, the distance between one end of the energy consumption steel plate 53 of the uppermost sliding energy consumption unit 5 and the steel column 1 gradually decreases along with the movement of the steel column 1, and when one end of the energy consumption steel plate 53 of the uppermost sliding energy consumption unit 5 is contacted with the steel column 1, the energy consumption steel plates 53 of the three groups of sliding energy consumption units 5 simultaneously generate damping force on the steel column 1. In summary, the three groups of sliding energy dissipation units 5 from bottom to top can gradually dissipate energy generated by small earthquake, medium earthquake and large earthquake through displacement of the steel column 1, damping force provided by the energy dissipation steel plates 53 on the steel column 1 and fixed point yield generated by wave crests of the corrugated steel plates 531.

As can be seen from the above description, by arranging the three groups of sliding energy consumption units 5 with different control displacements, the invention realizes 'fixed point yielding' and 'multi-stage stressing' while guaranteeing to provide enough resistance, the damage position is controllable, the stress mechanism is clear, the energy consumption performance is stable, the sliding energy consumption units 5 with different stress performances can sequentially enter the working state according to the sequence of small-to-large sliding distances, the rigidity addition during middle earthquake and large earthquake is realized, the damping force is increased along with the increase of the interlayer displacement of the main structure, and the requirement of the use function of the building in each stage is met; the design method of two stages is adopted, and the design method meets the three-level fortification targets, namely small earthquake is not damaged, medium earthquake is repairable and large earthquake is not fallen down; when the small earthquake is in the small earthquake stage, the small earthquake is utilized to consume energy by the slip energy consumption unit 5 without slip; further, when the earthquake energy is larger, the interlayer displacement is further increased, and at the moment, the preset slippage energy dissipation unit 5 for small slippage of the earthquake begins to provide additional rigidity and additional energy dissipation; when the earthquake is in a larger earthquake energy, the interlayer displacement is further increased, and the slip energy consumption unit 5 for presetting the large earthquake slip starts to provide additional rigidity and additional energy dissipation.

Meanwhile, in order to reduce the calculated height of the steel column 1, a buffer plate is installed between the top end of the steel column 1 and the upper main beam 2. The buffer plate can improve the critical instability bearing capacity of Euler, meanwhile, the shearing force of the upper beam is not obviously transmitted to the steel column 1, the force transmission path of the main body structure is not changed while the stability of the steel column 1 is greatly improved, and the original main body structure is ensured to work according to the designed using conditions.

And, the diagonal bracing unit 7 can well form a combined energy consumption system working together with the sliding energy consumption unit 5 of the invention. The inclined rod supporting unit 7 is provided with the same sliding limit value as the middle-earthquake small-sliding energy consumption unit 5, and does not enter a working state when small earthquake occurs; when the middle earthquake and the large earthquake occur, the inclined rod supporting unit 7 reaches the sliding limit value, the steel column 1 is supported, the overall stability of the steel column 1 is improved to ensure that the steel column 1 provides stable supporting conditions for the energy consumption components, meanwhile, the inclined rod supporting unit 7 also provides certain lateral rigidity, the shearing force between the earthquake layers is shared, and the safety of the main structure is further protected.

According to the invention, the plurality of groups of sliding energy consumption units 5 are arranged between the steel column 1 and the rigid plate 4, the distances between one end of the energy consumption steel plate 53 of each group of sliding energy consumption units 5 and the steel column 1 are sequentially increased from bottom to top, and when an earthquake occurs, the sliding energy consumption units 5 can sequentially enter a working state from small to large according to the earthquake level. When the earthquake level is small earthquake, the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned at the lowest part enters a working state, energy consumption begins, and the two groups of sliding energy consumption units 5 positioned above do not enter the working state yet; when the earthquake level is a middle earthquake, the energy consumption steel plate 53 of the sliding energy consumption unit 5 positioned at the lowest part enters the working state at first, and along with the further increase of the interlayer displacement, the energy consumption steel plate 53 of the sliding energy consumption unit 5 at the middle part also starts to enter the working state and works together with the sliding energy consumption unit 5 at the lower part, so that larger additional damping can be provided, the energy consumption capacity is further enhanced, and at the moment, the sliding energy consumption unit 5 at the uppermost part does not enter the working state yet; when the earthquake level is a major earthquake, the lower sliding energy consumption unit 5 and the middle sliding energy consumption unit 5 enter the working state successively, and the energy consumption steel plates 53 of the upper sliding energy consumption unit 5 also start to enter the working state along with the further increase of the interlayer displacement, at this time, the three groups of sliding energy consumption units 5 work simultaneously, enough additional damping is provided, more earthquake energy can be dissipated, and the safety of a main structure is ensured. In addition, the corrugated steel plates 531 of the energy consumption steel plates 53 of the multiple groups of sliding energy consumption units 5 have different waveforms or wave crests, and have different mechanical properties, and the rigidity of the corrugated steel plates 531 of the multiple groups of sliding energy consumption units 5 sequentially increases from bottom to top along with the change of the waveform or wave crest number. The invention realizes the rigidity addition in the middle earthquake and the large earthquake, the damping force is increased along with the increase of the interlayer displacement of the main structure, and the defects of overlarge initial rigidity of the structure and insufficient rigidity of the damping device under the action of the large earthquake are avoided, so that the building structure has enough ductility and bearing capacity when encountering the earthquake actions of different levels, the earthquake energy is effectively dissipated, and the main structure does not generate overlarge deformation affecting the normal use function. Moreover, through reasonable waveform design, the damping device can realize 'fixed point yield' while guaranteeing to provide enough resistance, the yield point is the crest of the corrugated steel plate, the damage position is controllable, and the energy consumption performance is stable. The post-earthquake steel column 1 and the rigid plate 4 are in an elastic stage without replacement, and only the sliding energy consumption unit 5 is replaced, so that the post-earthquake steel column has a replaceable function, can be recycled, greatly reduces the waste of steel, and is suitable for industrial production.

The above embodiments are merely preferred embodiments of the present invention, the protection scope of the present invention is not limited thereto, and any simple changes or equivalent substitutions of technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention disclosed herein are all within the protection scope of the present invention.

Claims

1. A slip damping device, comprising:

the upper end and the lower end of the steel column (1) are respectively connected with an upper girder (2) and a lower girder (3) between the layers of the building;

the upper end of the rigid plate (4) is connected with the bottom of the upper main beam (2), and the rigid plate (4) and the steel column (1) are arranged in parallel in the vertical direction;

the multi-group slip energy dissipation units (5) are arranged between the steel column (1) and the rigid plate (4) in parallel from bottom to top, and each group of slip energy dissipation units comprises:

one end of the sliding limiter (51) is connected with the steel column (1);

two energy consumption steel plates (53), one end of which is inserted into the sliding limiter (51), and the other end of which is connected with the rigid plate (4), wherein the middle part of each energy consumption steel plate (53) is a corrugated steel plate (531);

the distances between one end of the energy consumption steel plates (53) of the plurality of groups of sliding energy consumption units (5) and the steel column (1) are sequentially increased from bottom to top.

2. A slip damping device according to claim 1, wherein each set of slip energy dissipating units further comprises:

the cushion block (52) is positioned in the sliding limiter (51), and one end of each group of two energy consumption steel plates (53) of the sliding energy consumption unit is symmetrically arranged outside the cushion block (52) in parallel along the vertical direction;

the two limiting clamping plates (54) are located inside the sliding limiter (51), the two limiting clamping plates (54) are located outside one ends of the two energy consumption steel plates (53) respectively, and the two limiting clamping plates (54), the two energy consumption steel plates (53) and the cushion block (52) are sequentially clamped from outside to inside and are connected through a plurality of fasteners.

3. The slip damping device according to claim 2, wherein the slip limiter (51) comprises a column connecting plate (511), an upper partition plate (512), a lower support plate (513) and a transverse limiting plate (514), one side of the column connecting plate (511) is connected with one side of the steel column (1), the transverse limiting plate (514) is arranged in parallel with the column connecting plate (511) along the vertical direction, the upper partition plate (512) and the lower support plate (513) are arranged in parallel along the horizontal direction, one end of the upper partition plate (512) is connected with the upper end of the column connecting plate (511), and the other end of the upper partition plate is connected with the upper end of the transverse limiting plate (514); one end of the lower supporting plate (513) is connected with the lower end of the column connecting plate (511), the other end of the lower supporting plate is connected with the lower end of the transverse limiting plate (514), a rectangular opening is formed in the transverse limiting plate (514), and one end of the energy consumption steel plate (53) is inserted into the sliding limiter (51) through the rectangular opening and is kept at a preset distance from the column connecting plate (511).

4. A slip damping device according to claim 3, characterized in that the horizontal distances between the column connection plates (511) of the plurality of sets of slip energy consuming units and the lateral limiting plates (514) are different, and the horizontal distances between the column connection plates (511) of the plurality of sets of slip energy consuming units and the lateral limiting plates (514) arranged from bottom to top are sequentially increased, and the horizontal distance between the column connection plates (511) of the lowermost slip energy consuming unit and the lateral limiting plates (514) is equal to the width of the limiting clamping plate (54).

5. A slip damping device according to claim 3, characterized in that each dissipative steel plate (53) further comprises a first connection plate (532) and a second connection plate (533); one end of the first connecting plate (532) is inserted into the sliding limiter (51) through the rectangular opening, and the other end of the first connecting plate is connected with one end of the corrugated steel plate (531); one end of the second connecting plate (533) is connected with the rigid plate (4), and the other end of the second connecting plate is connected with the other end of the corrugated steel plate (531); the cross section of each limiting clamp plate (54) is a concave steel plate, the concave direction of each limiting clamp plate (54) is close to one side of each cushion block (52), and the bottom plates of the two limiting clamp plates (54) of each group of sliding energy consumption units (5) are sequentially clamped with the two first connecting plates (532) and the cushion blocks (52) from outside to inside and are connected through a plurality of bolts; the corrugated steel plate (531) comprises a plurality of wave crests, and the wave forms or wave crests of the corrugated steel plates (531) of the energy consumption steel plates (53) of the plurality of groups of sliding energy consumption units (5) are different in number.

6. The sliding damping device according to claim 1, further comprising a buffer plate (6), wherein the buffer plate (6) comprises two transverse plates and an arc plate connected with one ends of the two transverse plates, the two transverse plates are respectively connected with the bottom of the upper main beam (2) and the top of the steel column (1), and the buffer plate (6) is made of soft steel materials.

7. A slip damping device according to claim 1, wherein the steel column (1) further comprises a plurality of transverse stiffeners (11), a plurality of said transverse stiffeners (11) being arranged on both sides of the web of the steel column (1).

8. A slip damping device according to claim 1, further comprising a diagonal bracing unit (7), wherein one end of the diagonal bracing unit (7) is hinged to the lower side wall of the steel column (1) through a first connecting member (8), and the other end is connected to the top of the lower main beam (3) through a second connecting member (9).

9. A slip damping device according to claim 8, characterized in that the first connecting member (8) comprises an end plate (81) and two baffles (82), the two baffles (82) being located at both ends of the end plate (81) in the vertical direction, the end plate (81) and the two baffles (82) being connected to the lower side wall of the steel column (1); the second connecting member (9) comprises a sliding block (91) and a sliding groove (92), the sliding groove (92) is embedded in the lower main beam (3), an opening is upward, and the sliding block (91) slides in the sliding groove (92).

10. A slip damping device according to claim 9, characterized in that the diagonal bracing unit (7) comprises a centre plate (71) and a sleeve (72), the sleeve (72) being sleeved outside the centre plate (71); a gap between the sleeve (72) and the central plate (71) is provided with a filling material; the upper end of the center plate (71) is hinged with the end plate (81), and the lower end of the center plate is hinged with a vertical plate at the top of the sliding block (91).