Steel structure anti-torsion support based on three-dimensional shock insulation, using method and steel structure

Abstract

The invention belongs to the technical field of shock isolation, and provides a steel structure anti-torsion support based on three-dimensional shock isolation, a use method and a steel structure, a main shaft is arranged on a first connecting seat, a damper connected with the main shaft is arranged on a bottom plate of a second connecting seat, the structure is simple, and the anti-torsion support is convenient to use. Three-dimensional displacement caused by earthquakes and torsional deformation caused by external force can be comprehensively dealt with; meanwhile, a telescopic rod and an elastic piece are arranged on a bottom plate of the second connecting seat; a sliding block is arranged at the end part of the telescopic rod; the first connecting seat is connected with the sliding block; a first elastic ring, a second elastic ring and a damping ring are arranged between the sliding block and the side plate and between the limiting plate and the first connecting base respectively, and friction force between the sliding block and the side plate and between the sliding block and the limiting plate and between the sliding block and the first connecting base is increased through the first elastic ring, the second elastic ring and the damping ring. When three-dimensional displacement and torsional deformation caused by external force happen to the shock insulation support at the same time, sudden change of displacement and deformation is avoided, damage to weak parts in the support is avoided, and the service life of the shock insulation support is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of seismic isolation, and in particular relates to a steel structure anti-torsion support based on three-dimensional seismic isolation, a use method and a steel structure. Background Art

[0002] In steel structures, the three-dimensional displacement and column torsional effects caused by external forces can significantly impact the safety and stability of the structure. While traditional seismic design for steel structures can improve overall seismic resistance, it remains difficult to effectively control the lateral and vertical displacements of columns, as well as the torsional response to external forces, under high-intensity earthquakes. This can lead to localized stress concentrations and component failures.

[0003] Existing seismic isolation bearings are mostly used in one-way or two-way seismic isolation designs, which are difficult to fully cope with the three-dimensional displacement caused by earthquakes and the torsional deformation caused by external forces. Although some seismic isolation bearings are equipped with damping structures to cope with torsional deformation, their structures are complex, and when the seismic isolation bearings undergo three-dimensional displacement and torsional deformation caused by external forces at the same time, sudden deformation changes will cause damage to weak parts such as the connections in the bearings, affecting the service life of the seismic isolation bearings. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes a steel structure anti-torsion support based on three-dimensional seismic isolation, a method of use and a steel structure. A main shaft is arranged on the first connecting seat, and a damper connected to the main shaft is arranged on the bottom plate of the second connecting seat. The structure is simple and can fully cope with the three-dimensional displacement caused by earthquakes and the torsional deformation caused by external forces; at the same time, a telescopic rod and an elastic part are arranged on the bottom plate of the second connecting seat; a slider is arranged at the end of the telescopic rod, and the first connecting seat is connected to the slider; a first elastic ring, a second elastic ring and a damping ring are respectively arranged between the slider and the side plate, the limit plate and the first connecting seat. The friction between the slider and the side plate and the limit plate, as well as the slider and the first connecting seat is increased through the first elastic ring, the second elastic ring and the damping ring. When the seismic isolation support undergoes three-dimensional displacement and torsional deformation caused by external forces at the same time, sudden changes in displacement and deformation are avoided, damage to the connections and other weak parts in the support is avoided, and the service life of the seismic isolation support is guaranteed.

[0005] In order to achieve the above objectives, in a first aspect, the present invention provides a steel structure anti-torsion support based on three-dimensional seismic isolation, which adopts the following technical solutions: A steel structure anti-torsion support based on three-dimensional seismic isolation, comprising a first connecting seat and a second connecting seat; The second connecting seat includes a bottom plate, and side plates and a limit plate vertically arranged on the bottom plate; a plurality of telescopic rods are provided on the bottom plate and located between the side plates and the limit plate, and elastic members are sleeved on the telescopic rods; sliders are provided at the ends of the plurality of telescopic rods, and the first connecting seat is connected to the sliders; a first elastic ring, a second elastic ring, and a damping ring are respectively provided between the slider and the side plates, and between the limit plate and the first connecting seat; A main shaft is provided on one side of the first connecting seat close to the second connecting seat, and a damper connected to the main shaft is provided on the bottom plate.

[0006] Furthermore, a gear is provided at the end of the main shaft, and the base plate is provided with two dampers, each damper is provided with a tooth plate; the two tooth plates are parallel to each other and respectively mesh with both sides of the gear.

[0007] Furthermore, a damping element is provided in the damper, and the damping element is connected to the tooth plate.

[0008] Furthermore, the damping element is a damping spring.

[0009] Furthermore, a plurality of telescopic rods and a plurality of elastic members are evenly distributed on the bottom plate along the axial direction.

[0010] Furthermore, an elastic pad is provided between the telescopic rod and the slider.

[0011] Furthermore, the slider is an annular slider, and the outer side, inner side and upper part of the slider are respectively provided with an outer limit groove, an inner limit groove and an upper limit groove; the first elastic ring, the second elastic ring and the damping ring are respectively provided in the outer limit groove, the inner limit groove and the upper limit groove.

[0012] Furthermore, the first elastic ring and the second elastic ring are both elastic rubber rings.

[0013] In order to achieve the above-mentioned purpose, in a second aspect, the present invention further provides a method for using a steel structure anti-torsion support based on three-dimensional seismic isolation, which adopts the following technical solution: A method for using a steel structure anti-torsion support based on three-dimensional seismic isolation uses the steel structure anti-torsion support based on three-dimensional seismic isolation as described in the first aspect, including: achieving torsional buffering through the action of a damper on the main shaft.

[0014] In order to achieve the above objectives, in a third aspect, the present invention further provides a steel structure, which adopts the following technical solution: A steel structure uses the steel structure anti-torsion support based on three-dimensional seismic isolation as described in the first aspect.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a main shaft is arranged on the first connecting seat, and a damper connected to the main shaft is arranged on the bottom plate of the second connecting seat. The structure is simple and can fully cope with the three-dimensional displacement caused by earthquakes and torsional deformation caused by external forces; at the same time, a telescopic rod and an elastic part are arranged on the bottom plate of the second connecting seat; a slider is arranged at the end of the telescopic rod, and the first connecting seat is connected to the slider; a first elastic ring, a second elastic ring and a damping ring are respectively arranged between the slider and the side plate, the limit plate and the first connecting seat. The friction between the slider and the side plate and the limit plate, as well as the slider and the first connecting seat is increased through the first elastic ring, the second elastic ring and the damping ring. When the seismic isolation bearing undergoes three-dimensional displacement and torsional deformation caused by external forces at the same time, sudden changes in displacement and deformation are avoided, damage to the connections and other weak parts in the bearing is avoided, and the service life of the seismic isolation bearing is guaranteed.

[0016] The present invention is suitable for steel structures to resist three-dimensional vibrations under earthquake action and column torsion caused by external forces; the anti-three-dimensional vibration component works together through shock-absorbing springs, telescopic rods and damping rings to effectively reduce horizontal and vertical displacements; the anti-torsion component transmits the torsional force of the upper part of the column to the gear through the main shaft connected to the upper part of the column, and converts the torsional force into horizontal force through two tooth plates, and reduces energy consumption through two dampers connected to the tooth plates, thereby protecting the entire column; the structure of the present invention is simple and easy to install, and the structure avoids the use of complex electrical equipment, and has strong assemblability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the specification of this embodiment are used to provide a further understanding of this embodiment. The schematic embodiments and descriptions of this embodiment are used to explain this embodiment and do not constitute an improper limitation on this embodiment.

[0018] Figure 1 This is a schematic diagram of the external structure of the support according to Example 1 of the present invention; Figure 2 Schematic diagram of the internal structure of the support according to embodiment 1 of the present invention; Figure 3 A cross-sectional view of a support according to embodiment 1 of the present invention; Figure 4 Schematic diagram of the limiting groove structure of Example 1 of the present invention; Figure 5 This is a schematic diagram of the installation position of the damper according to Example 1 of the present invention; Figure 6 Schematic diagram of the damper structure of Example 1 of the present invention; Among them, 1. first connecting seat; 2. second connecting seat; 201. bottom plate; 202. side plate; 3. main shaft; 4. telescopic rod; 5. elastic member; 6. tooth plate; 7. damper; 8. gear; 9. first elastic ring; 10. slider; 11. damping ring; 12. limit plate; 13. elastic pad; 14. second elastic ring; 15. inner limit groove; 16. upper limit groove; 17. outer limit groove; 18. damping element. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0021] Example 1: In steel structures, the three-dimensional displacements and column torsional effects caused by external forces can significantly affect the safety and stability of the structure. While traditional seismic design for steel structures can improve overall seismic resistance, under high-intensity earthquakes, the lateral and vertical displacements of columns, as well as the torsional response to external forces, remain difficult to effectively control, leading to localized stress concentrations and component failures. In this context, effective seismic isolation methods have become a key research focus.

[0022] Currently, seismic isolation technology has been widely used in building structures. Its basic principle is to install seismic isolation devices at the foundation or certain key parts of the structure so that the seismic force can be absorbed and dissipated through the seismic isolation layer, thereby reducing the response of the superstructure. However, existing seismic isolation bearings are mostly used for one-way or two-way seismic isolation designs, which are difficult to fully cope with the three-dimensional displacement caused by earthquakes and torsional deformation caused by external forces. In addition, while achieving the seismic isolation effect, existing technologies often increase the difficulty of construction or reduce the durability of the bearings, making it difficult to meet the actual needs of steel structure projects.

[0023] In addition, although some isolation bearings are equipped with damping structures to deal with torsional deformation, their structures are complex. When the isolation bearings undergo three-dimensional displacement and torsional deformation caused by external forces at the same time, sudden deformation changes will cause damage to weak parts such as the connections in the bearings, affecting the life of the isolation bearings.

[0024] In order to solve at least one of the above problems, this embodiment provides a steel structure anti-torsion support based on three-dimensional seismic isolation, which can effectively isolate the three-dimensional displacement of the column under the action of an earthquake, and reduce the torsional effect of the column under the action of external forces through innovative structural design, thereby significantly improving the safety and stability of the steel structure during an earthquake; the seismic isolation support that can effectively isolate the three-dimensional displacement and reduce the torsional response of the column has important engineering application value and innovative significance. Figure 1 、 Figure 2 and Figure 3 As shown, the support in this embodiment includes a first connecting seat 1 and a second connecting seat 2; the first connecting seat 1 and the second connecting seat 2 are respectively used to connect two parts of the steel structure, and the first connecting seat 1 and the second connecting seat 2 can be a circular box or other structural form.

[0025] The first connecting seat 1 and the second connecting seat 2 are circular boxes, which are used to prevent the anti-torsion support and the three-dimensional seismic isolation component from being directly exposed to the environment, thereby enhancing the stability of the entire support.

[0026] like Figure 2 、 Figure 3 and Figure 5 As shown, the first connecting base 1 is a cover structure that can be buckled onto the second connecting base 2 and can move up and down or rotate relative to the second connecting base 2. A main shaft 3 is vertically provided on one side of the first connecting base 1 close to the second connecting base 2, and a gear 8 is provided at the end of the main shaft 3.

[0027] like Figure 2 、 Figure 3 and Figure 4 As shown, the second connecting base 2 includes a base plate 201 and side plates 202 perpendicularly mounted on the base plate 201. A limit plate 12 is also mounted on the base plate 201. A telescopic rod 4 is mounted on the base plate 201 between the side plates 202 and the limit plate 12. An elastic member 5 is sleeved onto the telescopic rod 4. The telescopic rod 4 and the elastic member 5 are positioned between the side plates 202 and the limit plate 12 to horizontally limit their positions, preventing bending of the elastic member 5 and improving stability.

[0028] Optionally, a plurality of telescopic rods 4 and a plurality of elastic members 5 are evenly distributed along the axial direction on the base plate 201 to ensure the stability of three-dimensional seismic isolation; the telescopic rod 4 can adopt a telescopic cylinder, and the elastic member 5 can adopt a spring; the extension and retraction of the telescopic rod 4 is combined with the energy storage and release of the elastic member 5 to achieve the purpose of seismic isolation.

[0029] Two dampers 7 are mounted on the base plate 201, each with a toothed plate 6. The two toothed plates 6 are parallel to each other and mesh with either side of the gear 8. When the first and second connecting seats 1 and 2 of the isolation support undergo relative torsional deformation under the action of an external force, the toothed plates 6 move relative to the gear 8, acting as a buffer. The dampers 7 store energy, and when the external force disappears, the dampers release the energy, restoring the first connecting seat 1 to its original state. This results in a simple structure and excellent torsional resistance.

[0030] like Figure 6 As shown, the damper 7 is provided with a damping element 18 connected to the toothed plate 6. The damping element 18 can optionally be a damping spring. When the toothed plate 6 rotates relative to the gear 8, the damping element 18 is stretched or compressed, storing energy. When the external force disappears, the damping element 18 releases the energy. It is understood that the limit plate 12 has a through hole located at the toothed plate 6 for the toothed plate 6 to pass through, thereby enabling the movement of the toothed plate 6.

[0031] Specifically, the main shaft 3, the gear 8, the toothed plate 6, the damper 7, and the damping element 18 collectively constitute the support's torsion-resistant unit. The damper 7 is fixedly connected to the second connecting base 2. When the upper structure causes the column to twist, the main shaft 3, which is rigidly connected to the upper portion of the first connecting base 1, rotates accordingly, driving the gear 8 below. The gear 8 meshes with the toothed plate 6, which converts the torsional force into a horizontal force that is transmitted to the damper 7. The extended end of the damper 7 is fixedly connected to the toothed plate 6. When the torsional force is transmitted to the damper 7 through the toothed plate 6, the damping element 18 within the damper absorbs and dissipates the transmitted energy, effectively reducing the impact of the torsional force on the column. This synergistic effect allows the damper 7 to dissipate excess energy while ensuring smooth conversion of the torsional force during transmission, effectively protecting the structural safety of the column. The two toothed plates 6 generate forces in opposite directions, which neither causes the column to twist nor increases its stability.

[0032] like Figure 3 As shown, an elastic pad 13 is provided at the end of the telescopic rod 4 to further improve the buffering performance. The elastic pad 13 can be optionally a rubber pad. A slider 10 is provided at the end of the elastic pad 13 away from the telescopic rod 4.

[0033] The slider 10 is an annular slider, and an outer limiting groove 17, an inner limiting groove 15 and an upper limiting groove 16 are respectively provided on the outer side, inner side and upper side of the slider 10; the first elastic ring 9, the second elastic ring 14 and the damping ring 11 are respectively provided in the outer limiting groove 17, the inner limiting groove 15 and the upper limiting groove 16; the arrangement of the outer limiting groove 17, the inner limiting groove 15 and the upper limiting groove 16 avoids excessive deformation of the first elastic ring 9, the second elastic ring 14 and the damping ring 11 when subjected to friction.

[0034] The first elastic ring 9, the second elastic ring 14 and the damping ring 11 increase the friction between the slider 10 and the side plate 202 and the limit plate 12, as well as between the slider 10 and the first connecting seat 1. When the seismic isolation bearing undergoes three-dimensional displacement and torsional deformation caused by external force at the same time, the displacement and deformation mutations are avoided, and the damage to the connection and other weak parts in the bearing is avoided, thereby ensuring the service life of the seismic isolation bearing. For example, different limit grooves are provided on the slider 10, and the damping ring 11 is installed in the upper limit groove 16 as a connecting member between the slider 10 and the first connecting seat 1. On the one hand, the connection flexibility between the first connecting seat 1 and the slider 10 is increased, and on the other hand, the first connecting seat 1 can slide relative to the slider 10, which can effectively reduce the damage to the column caused by horizontal displacement under earthquake conditions.

[0035] The elastic member 5, the telescopic rod 4, the elastic pad 13, the slider 10, the first elastic ring 9, and the second elastic ring 14 collectively constitute the support's anti-vertical displacement unit. Vertical displacement under earthquake conditions is transmitted from the ground to the second connecting seat 2, and then to the column through the anti-vertical displacement unit. When the displacement is transmitted to the elastic member 5 and the telescopic rod 4, it is initially weakened by their structural characteristics. It is then further weakened by friction between the inner second elastic ring 14 and the limit plate 12, and by friction between the first elastic ring 9 and the side plate 202. This ensures that the vertical displacement ultimately transmitted to the column is within a safe and controllable range.

[0036] Optionally, the first elastic ring 9 and the second elastic ring 14 are both elastic rubber rings to ensure buffering performance.

[0037] Example 2: This embodiment provides a method for using a steel structure anti-torsion support based on three-dimensional seismic isolation, using the steel structure anti-torsion support based on three-dimensional seismic isolation as described in Example 1, including: achieving torsional buffering through the action of the damper 7 on the main shaft 3.

[0038] Example 3: This embodiment provides a steel structure that uses the steel structure anti-torsion support based on three-dimensional seismic isolation as described in Example 1. It can be understood that the first connecting seat 1 and the second connecting seat 2 are respectively used to connect two components of the steel structure to achieve three-dimensional seismic isolation of the steel structure.

[0039] The above description is merely a preferred embodiment of this embodiment and is not intended to limit this embodiment. Those skilled in the art will readily appreciate that this embodiment may be modified and varied in various ways. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this embodiment shall be within the scope of protection of this embodiment.

Claims

1. The steel structure anti-torsion support based on three-dimensional seismic isolation is characterized by: comprising a first connecting seat and a second connecting seat; The second connecting seat includes a bottom plate, and side plates and a limit plate vertically arranged on the bottom plate; a plurality of telescopic rods are provided on the bottom plate and located between the side plates and the limit plate, and elastic members are sleeved on the telescopic rods; sliders are provided at the ends of the plurality of telescopic rods, and the first connecting seat is connected to the sliders; a first elastic ring, a second elastic ring, and a damping ring are respectively provided between the slider and the side plates, and between the limit plate and the first connecting seat; A main shaft is provided on one side of the first connecting seat close to the second connecting seat, and a damper connected to the main shaft is provided on the bottom plate.

2. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 1, characterized in that: A gear is provided at the end of the main shaft, and the base plate is provided with two dampers, each damper is provided with a tooth plate; the two tooth plates are parallel to each other and mesh with both sides of the gear respectively.

3. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 2, characterized in that: A damping element is provided in the damper, and the damping element is connected to the tooth plate.

4. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 3, characterized in that: The damping element is a damping spring.

5. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 1, characterized in that: A plurality of telescopic rods and a plurality of elastic members are evenly distributed on the bottom plate along the axial direction.

6. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 1, characterized in that: An elastic pad is provided between the telescopic rod and the slider.

7. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 1, characterized in that: The slider is an annular slider, and an outer limiting groove, an inner limiting groove and an upper limiting groove are respectively provided on the outer side, inner side and upper side of the slider; the first elastic ring, the second elastic ring and the damping ring are respectively provided in the outer limiting groove, the inner limiting groove and the upper limiting groove.

8. The steel structure anti-torsion support based on three-dimensional seismic isolation according to claim 1, characterized in that: The first elastic ring and the second elastic ring are both elastic rubber rings.

9. The method for using a steel structure anti-torsion support based on three-dimensional seismic isolation is characterized in that: The steel structure anti-torsion support based on three-dimensional seismic isolation as described in any one of claims 1 to 8 is used, including: achieving torsional buffering through the action of the damper on the main shaft.

10. Steel structure, characterized in that, A steel structure anti-torsion support based on three-dimensional seismic isolation as described in any one of claims 1 to 8 is used.

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