Reprogrammable damper

Abstract

The invention discloses a reprogrammable damper which is composed of a limiting frame, a base and a core energy consumption component. The limiting frame is connected with the base through a buckle; the core energy consumption component is installed in an inserting groove formed by the limiting frame and the base and connected with the base. The core energy dissipation component is composed of a plurality of arch units which are connected in series and in parallel. The energy dissipation and shock absorption level of the core energy dissipation component can be adjusted and controlled by moving the positions of the limiting frames on the two sides. And the core energy consumption component has a self-resetting function through regulation and control, and can recover to an original state after unloading. The arch unit performs full-elastic energy consumption through a nonlinear buckling path of the structure in the loading and unloading process; the arch feet of the arch units are directly designed to be sliding grooves, and the arch feet are allowed to move relatively. The device has the characteristics of flexible regulation and control, low damage, self-resetting and high assembly, and is particularly suitable for buildings and bridge structures subjected to complex vibration loads.

Description

Technical Field

[0001] The invention relates to a reprogrammable damper and belongs to the technical field of structural engineering. Technical Background

[0002] With the continuous advancement of urbanization, the scale of high-rise buildings, bridges and other large structures has gradually increased, and the seismic resistance and shock absorption performance of structures have become particularly important in modern building design. Especially in areas where earthquakes occur frequently and areas affected by strong wind loads, how to improve the seismic resistance and earthquake resistance of structures has become a key issue in engineering design. Therefore, how to effectively reduce the impact of these external excitations on the structure, prevent damage caused by excessive vibration, and ensure the safety and comfort of the structure has always been one of the core challenges in the field of structural engineering.

[0003] In the existing structural seismic design, energy dissipation dampers (such as viscous dampers, friction dampers, damping rubber bearings, etc.) are widely used. These energy dissipation devices absorb and transform the energy generated by structural vibration, reduce the vibration response of the structure, and effectively improve its seismic resistance. Traditional energy dissipation dampers can reduce the vibration response of the structure caused by earthquakes or other external forces to a certain extent, delay structural damage, and improve the comfort of the building. However, these traditional energy dissipation devices still have some limitations and cannot provide optimal performance in all cases.

[0004] First, traditional energy dissipation dampers usually face limitations in their energy dissipation capacity. Under complex earthquakes or wind loads, many energy dissipators fail to adjust their energy dissipation characteristics according to the intensity and frequency of external excitation. This makes it possible that the performance of traditional devices may not be fully adapted to different engineering needs when facing different earthquake magnitudes or load conditions. Secondly, traditional energy dissipation dampers often suffer damage during long-term use, which will cause the performance of the dampers to deteriorate, and regular replacement and maintenance are necessary. Especially under the action of multiple strong earthquakes, many dampers cannot restore their elasticity, resulting in permanent deformation or functional failure, which increases the cost of post-earthquake repair and affects the long-term stability and reliability of the structure.

[0005] In view of the above problems, it is necessary to design an adjustable, low-damage, reprogrammable damper that can not only meet the seismic performance requirements but also improve the structural durability and long-term stability. Summary of the invention

[0006] The present invention relates to a reprogrammable damper, which has the advantages of being adjustable and low in damage. The reprogrammable damper utilizes the nonlinear buckling path of the arch unit during loading and unloading to achieve energy dissipation and avoid plastic damage to the structure. The reprogrammable damper can adjust its seismic energy dissipation level by applying prestress to the arch foot.

[0007] The reprogrammable damper comprises a limit frame, a base and a core energy-consuming component.

[0008] A reprogrammable damper comprising:

[0009] A base arranged in a vertical direction;

[0010] Two limit frames are arranged on the base in the horizontal direction, and a slide groove is arranged in each of the two limit frames in the opposite direction;

[0011] And, a core energy-absorbing component arranged between the two limiting frames;

[0012] The core energy-consuming components include:

[0013] A row of bottom arch unit groups disposed on the base;

[0014] One or more columns of core arch unit groups are arranged on the bottom arch unit group;

[0015] A row of top arch unit groups is disposed on the core arch unit group.

[0016] In the present invention, the limit frame is connected to the base through a snap, and its installation position can be adjusted in the horizontal direction; the core energy-absorbing component is installed in the slot formed by the limit frame and the base, and is connected to the base; the core energy-absorbing component is composed of a plurality of arch units connected in series and parallel; the energy dissipation and shock absorption level of the core energy-absorbing component can be adjusted by moving the positions of the left and right limit frames; the core energy-absorbing component has a self-reset function through adjustment, and can be restored to its original state after unloading. The arch unit dissipates energy in full elasticity through the nonlinear buckling path of the structure during loading and unloading; the arch foot of the arch unit is directly designed as a slide groove, allowing the arch foot to undergo relative displacement. The reprogrammable damper proposed in the present invention has an energy dissipation and shock absorption level that can be adjusted after processing is completed, and has the characteristics of flexible adjustment, low damage, self-reset, and high assembly, and is particularly suitable for buildings and bridge structures subject to complex vibration loads.

[0017] The limiting frame is an edge component with a slide groove, and the limiting frame can be used to install the core energy-absorbing component and restrict the in-plane and out-of-plane deformation of the core energy-absorbing component during loading and unloading.

[0018] Furthermore, the limiting frame can be installed and fixed at different positions of the base by buckles, thereby applying a pre-compression displacement to the core energy-consuming component.

[0019] Furthermore, the core energy-absorbing component is composed of a bottom edge arch unit, a bottom middle arch unit, a core arch unit, a top arch unit and an arch unit connecting piece.

[0020] Furthermore, the bottom edge arch unit, the bottom middle arch unit, the core arch unit and the top arch unit are connected in the same column by supporting with a common arch foot on one side.

[0021] Furthermore, the bottom edge arch unit, the bottom middle arch unit, the core arch unit and the top arch unit are connected in the same row through arch unit connectors.

[0022] Furthermore, the components of the bottom edge arch unit, the bottom middle arch unit, the core arch unit and the top arch unit all include an arch, an arch foot support, an open slide groove, a slider and a limiting cylinder.

[0023] Furthermore, the open slide groove and the sliding block are respectively located at the supporting ends of the arch feet on both sides, allowing the arch feet to slide relatively during the regulation process and apply prestress to the arch.

[0024] Furthermore, the limiting cylinders are located on both sides of the slider and installed in the open slide groove, ensuring that the slide groove and the slider maintain parallel sliding during the regulation process.

[0025] Furthermore, the bottom middle arch unit has base mounting plates on both sides of the open slide slot, which are used to fix the core energy-absorbing component on the base.

[0026] Furthermore, the core arch unit is composed of two interlocking arches.

[0027] Furthermore, the core arch unit is supported by two pairs of arch feet.

[0028] Furthermore, the side of the open slide groove of the top arch unit away from the base has a top mounting plate with bolt holes for mounting the product.

[0029] Furthermore, a row of bottom arch unit groups includes:

[0030] two bottom edge arch units located at the ends of the base;

[0031] A bottom middle arch unit is arranged between two bottom edge arch units.

[0032] The bottom edge arch unit comprises:

[0033] arch;

[0034] an open chute disposed at one end of the arch;

[0035] A sliding block is arranged at the other end of the arch, and the sliding block is provided with a limiting cylinder matched with the open sliding groove.

[0036] The bottom middle arch unit comprises:

[0037] arch;

[0038] an open chute disposed at one end of the arch;

[0039] A slider disposed at the other end of the arch, wherein the slider is provided with a limiting cylinder that cooperates with the open slide groove;

[0040] A base mounting plate connected to the open slide groove, wherein the base mounting plate is fixed to the base.

[0041] The base mounting plate is fixed to the base via bolts.

[0042] One or more columns of core arch unit groups: multiple core arch units, multiple core arch units form one or more columns.

[0043] The core arch unit comprises:

[0044] Two parallel arch foot supports;

[0045] Two arches connected to the ends of the two parallel arch foot supports, the two arches bulging outwards;

[0046] An open slideway and a slide block are respectively installed in the middle of the two arch foot supports;

[0047] A limiting cylinder is arranged on the sliding block and slidably cooperates with the open sliding groove.

[0048] Two adjacent core arch units are connected via an arch unit connector.

[0049] The length of the arch unit connecting piece is greater than twice the height of the arch in the core arch unit.

[0050] A row of top arch unit groups includes: a plurality of top arch units, wherein the top arch units include:

[0051] arch;

[0052] an open chute disposed at one end of the arch;

[0053] A slider disposed at the other end of the arch, wherein the slider is provided with a limiting cylinder that cooperates with the open slide groove;

[0054] A top mounting plate is disposed on the open slideway.

[0055] Furthermore, the core energy-consuming component can be integrally formed by wire cutting technology or integrally formed by 3D printing technology.

[0056] Furthermore, the bottom edge arch unit, the bottom middle arch unit, the core arch unit and the top arch unit are controlled by parameters, and different equilibrium paths are used during the loading and unloading process of the nonlinear structure to perform full elastic energy dissipation to avoid plastic damage to the components.

[0057] Furthermore, the material of the core energy-absorbing component can be selected from spring steel, carbon fiber reinforced composite materials or other materials with excellent mechanical properties according to actual needs to ensure the stability and reliability of the structure during long-term use.

[0058] Furthermore, the multi-stage fully elastic energy dissipation damper is particularly suitable for buildings and bridge structures subjected to complex vibration loads.

[0059] The multi-stage fully elastic energy dissipation damper proposed by the present invention has the following advantages:

[0060] (1) Adjustability. By adjusting the installation position of the limit frame, the prestress of the arch unit can be adjusted, and the seismic energy dissipation effect of the damper can be flexibly adjusted to meet the seismic energy dissipation requirements under different load conditions.

[0061] (2) Low damage. Due to the use of nonlinear structural loading and unloading paths, the energy dissipation process avoids plastic deformation and reduces the long-term performance degradation caused by plastic damage.

[0062] (3) Self-resetting energy dissipation. The core energy dissipation component has a self-resetting function and can automatically return to its original state after unloading, ensuring reliability and durability during multiple uses.

[0063] (4) High degree of assembly. The damper has a high degree of assembly, and each component is processed in the factory. The processing process is standardized and streamlined. The components can be directly assembled at the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is an overall schematic diagram of the present invention;

[0065] Figure 2 This is a schematic diagram of the core energy consumption structure of the present invention;

[0066] Figure 3 It is a structural schematic diagram of the limiting frame of the present invention;

[0067] Figure 4 It is a schematic structural diagram of a bottom edge arch unit, a bottom middle arch unit, a core arch unit and a top arch unit of the present invention;

[0068] Figure 5 This is a schematic diagram of the regulation of the prestressed energy consumption mechanism of the present invention.

[0069] 1-core energy-absorbing component, 2-limiting frame, 3-base, 4-buckle, 5-bottom middle arch unit, 5-1-arch, 5-2-arch foot support, 5-3-opening slide, 5-4 slider, 5-5 limiting cylinder, 5-6-base mounting plate, 6-bottom edge arch unit, 6-1-arch, 6-2-arch foot support, 6-3-opening slide, 6-4 slider, 6-5 limiting cylinder, 7-core arch unit, 7-1-arch, 7-2-arch foot support, 7-3-opening slide, 7-4 slider, 7-5 limiting cylinder, 8-top arch unit, 8-1-arch, 8-2-arch foot support, 8-3-opening slide, 8-4 slider, 8-5 limiting cylinder, 8-6 top mounting plate, 9-arch unit connector. DETAILED DESCRIPTION

[0070] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The following are only preferred embodiments of the present invention and are not intended to limit the present invention.

[0071] The present invention provides a reprogrammable damper, such as Figure 1 As shown, both ends of the damper can be connected to the building structure. The damper is mainly composed of a core energy-absorbing component 1, a limit frame 2, and a base 3.

[0072] like Figure 1 As shown, a reprogrammable damper comprises: a base 3 arranged in the vertical direction; two limit frames 2 arranged on the base 3 in the horizontal direction, and a slide groove is arranged in the opposite direction of the two limit frames 2; and a core energy-absorbing component 1 arranged between the two limit frames. The core energy-absorbing component 1 is placed in the space formed by the limit frame 2 and the base (3), and the bottom is fixed to the base 3 by bolts; the limit frame 2 is connected to the base 3 by a buckle 4.

[0073] like Figure 2 As shown, the core energy absorbing component 1 comprises: a row of bottom arch unit groups arranged on a base 3; one or more rows of core arch unit groups arranged on the bottom arch unit groups; and a row of top arch unit groups arranged on the core arch unit groups. The core energy absorbing component 1 is composed of a plurality of bottom intermediate arch units 5, bottom edge arch units 6, core arch units 7, top arch units 8, and arch unit connectors 9 connected in series and in parallel.

[0074] like Figure 2 As shown, a row of bottom arch unit groups includes: two bottom edge arch units 6 located at the ends of the base 3; and a bottom middle arch unit 5 arranged between the two bottom edge arch units 6. The bottom edge arch unit 6 and the bottom middle arch unit 7 are located at one end of the core energy absorbing component 1 near the base 3, the top arch unit 8 is located at the other end, and the core arch unit 7 is located between the two ends.

[0075] like Figure 2As shown, the bottom edge arch units 6 are located on both sides of the bottom middle arch unit 5, and are connected to each other in the form of a shared side arch foot support 5-2 and an arch foot support 6-2.

[0076] like Figure 2 As shown, the bottom middle arch units 5 in the same row are connected by using a shared arch foot support 5-2 on one side.

[0077] like Figure 2 As shown, the bottom edge arch unit 6 is connected to the core arch unit 7 of the same line via an arch unit connector 9 .

[0078] like Figure 2 As shown, the bottom middle arch unit 5 is connected to the core arch unit 7 of the same line via an arch unit connector 9 .

[0079] like Figure 2 As shown, the core arch units 7 in the same row are connected by using a common arch foot support 7 - 2 on one side, and the arch unit connectors 9 are used to connect the core arch units in the same row.

[0080] like Figure 2 As shown, the top arch units 8 in the same row are connected in the form of a shared arch foot support 8 - 2 , and are connected to the core arch units 7 in the same row through arch unit connectors 9 .

[0081] like Figure 2 As shown, the two ends of the arch unit connector 9 are respectively connected to the tops of the arches on both sides.

[0082] like Figure 3 As shown, the limit frame 2 is an edge component with a guide rail, which can slide along the base 3 in the vertical structural force direction and be locked by the buckle 4; the inner wall of the limit frame 2 is provided with a guide flange, which can effectively restrain the in-plane and out-of-plane deformation of the core energy-absorbing component 1, ensuring that its main force mode is vertical tension and compression, thereby optimizing the energy absorption performance.

[0083] like Figure 4 As shown, the bottom middle arch unit 5 is composed of an arch 5-1, an arch foot support 5-2, an open slide groove 5-3, a slider 5-4, a limiting cylinder 5-5 and a base mounting plate 5-6.

[0084] like Figure 4 As shown, the arch foot supports 5-2 of the bottom middle arch unit 5 are located on both sides of the foot of the arch 5-1.

[0085] like Figure 4 As shown, the open slide groove 5-3 and the slider 5-4 of the bottom middle arch unit 5 are respectively located at the ends of the arch foot supports 5-2 on both sides.

[0086] like Figure 4As shown, the limiting cylinders 5-5 of the bottom middle arch unit 5 are located on both sides of the slider 5-4 and installed in the open slide groove 5-3, ensuring that the slider 5-4 and the open slide groove 5-3 can achieve horizontal movement during regulation.

[0087] like Figure 4 As shown, the base mounting plates 5-6 of the bottom middle arch unit 5 are located on both sides of the open slide groove 5-3 and are connected to the base 3 through bolt holes.

[0088] like Figure 4 As shown, the bottom edge arch unit 6 is composed of an arch 6-1, an arch foot support 6-2, an open slide groove 6-3, a slider 6-4 and a limiting cylinder 6-5.

[0089] like Figure 4 As shown, the arch foot supports 6-2 of the bottom edge arch unit 6 are located on both sides of the foot of the arch 6-1.

[0090] like Figure 4 As shown, the open slide groove 6-3 and the slider 6-4 of the bottom edge arch unit 6 are respectively located at the ends of the arch foot supports 6-2 on both sides.

[0091] like Figure 4 As shown, the limiting cylinders 6-5 of the bottom edge arch unit 6 are located on both sides of the slider 6-4 and installed in the open slide groove 6-3, ensuring that the slider 6-4 and the open slide groove 6-3 can achieve horizontal movement during regulation.

[0092] like Figure 4 As shown, the core arch unit 7 is composed of an arch 7-1, an arch foot support 7-2, an open slide groove 7-3, a slider 7-4 and a limiting cylinder 7-5.

[0093] like Figure 4 As shown, the core arch unit 7 is composed of two interlocking arches 7-1 along the force direction of the component.

[0094] like Figure 4 As shown, the arch foot supports 7-2 of the core arch unit 7 are located on both sides of the arch feet of the two interlocking arches 7-1.

[0095] like Figure 4 As shown, the open slide groove 7-3 and the slider 7-4 of the core arch unit 7 are respectively located in the middle of the arch foot supports 7-2 on both sides.

[0096] like Figure 4 As shown, the limiting cylinders 7-5 of the core arch unit 7 are located on both sides of the slider 7-4 and installed in the open slide groove 7-3, ensuring that the slider 7-4 and the open slide groove 7-3 can achieve horizontal movement during regulation.

[0097] like Figure 4As shown, the top arch unit 8 is composed of an arch 8-1, an arch foot support 8-2, an open slide groove 8-3, a slider 8-4, a limiting cylinder 8-5 and a top mounting plate 8-6.

[0098] like Figure 4 As shown, the arch foot supports 8-2 of the top arch unit 8 are located on both sides of the foot of the arch 8-1.

[0099] like Figure 4 As shown, the open slide groove 8-3 and the slider 8-4 of the top arch unit 8 are respectively located at the ends of the arch foot supports 8-2 on both sides.

[0100] like Figure 4 As shown, the limiting cylinders 8-5 of the top arch unit 8 are located on both sides of the slider 8-4 and installed in the open slide groove 8-3, ensuring that the slider 8-4 and the open slide groove 8-3 can achieve horizontal movement during regulation.

[0101] like Figure 4 As shown, the top mounting plate 8-6 of the top arch unit 8 is located on the side of the open slide groove 8-3 away from the base 3, and is used for end mounting of the product.

[0102] The limit frame 2 reprograms the energy dissipation and shock absorption capacity by applying a squeezing force to the core energy-absorbing component 1. The typical load-displacement curve after regulation is as follows: Figure 5 When the structure is subjected to external variable loads, the limit frame 2 can be moved according to the actual situation to achieve the regulation of the energy dissipation and shock absorption effect of the damper.

[0103] like Figure 5 As shown, the load-displacement curve of the reprogrammable damper presents multiple peaks, each peak represents the nonlinear buckling of a row of arch units, and energy dissipation is achieved through different nonlinear buckling paths of the core energy dissipation component 1 during loading and unloading.

[0104] like Figure 5 As shown in the figure, by regulating the arch unit, the envelope area formed by the load-displacement curve of the reprogrammable damper is significantly improved, that is, the load-bearing and energy consumption levels of the damper are significantly enhanced.

[0105] In a preferred embodiment, the core energy dissipation component 1 is made of spring steel or carbon fiber reinforced composite material, which has high strength and excellent recovery ability. The core energy dissipation component 1 can be integrally formed by wire cutting or 3D printing technology to ensure the processing accuracy and overall performance of the structure.

[0106] Finally, it should be noted that the above is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Those skilled in the art can make changes or equivalent substitutions to the specific structural form or material selection without departing from the technical concept of the present invention, and these changes or substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A reprogrammable damper, characterized in that: include: A base (3) arranged in a vertical direction; Two limit frames (2) are arranged on the base (3) in a horizontal direction, and a slide groove is arranged in each of the two limit frames (2) in the opposite direction; And, a core energy-absorbing component (1) arranged between the two limiting frames; The core energy-consuming component (1) comprises: A row of bottom arch unit groups arranged on the base (3); One or more columns of core arch unit groups are arranged on the bottom arch unit group; A row of top arch unit groups is disposed on the core arch unit group.

2. The reprogrammable damper according to claim 1, characterized in that A row of bottom arch unit groups includes: Two bottom edge arch units (6) located at the ends of the base (3); A bottom middle arch unit (5) is arranged between two bottom edge arch units (6).

3. The reprogrammable damper according to claim 2, characterized in that The bottom edge arch unit (6) comprises: Arch (6-1); An open slide groove (6-3) arranged at one end of the arch (6-1); A sliding block (6-4) is arranged at the other end of the arch (6-1), and the sliding block (6-4) is provided with a limiting cylinder (6-5) that cooperates with the open sliding groove (6-3).

4. The reprogrammable damper according to claim 2, characterized in that The bottom middle arch unit (5) comprises: Arch (5-1); An open slide groove (5-3) arranged at one end of the arch (5-1); A sliding block (5-4) is arranged at the other end of the arch (5-1), wherein the sliding block (5-4) is provided with a limiting cylinder (5-5) that cooperates with the open sliding groove (5-3); A base mounting plate (5-6) connected to the open slide groove (5-3), wherein the base mounting plate (5-6) is fixed to the base (3).

5. The reprogrammable damper according to claim 4, characterized in that The base mounting plate (5-6) is fixed to the base (3) by means of bolts.

6. The reprogrammable damper according to claim 1, characterized in that One or more rows of core arch unit groups: a plurality of core arch units (7), wherein the plurality of core arch units (7) form one or more rows.

7. The reprogrammable damper according to claim 6, characterized in that The core arch unit (7) comprises: Two parallel arch foot supports (7-2); Two arches (7-1) connected to the ends of the two parallel arch foot supports (7-2), the two arches (7-1) bulging outwards; An open slide groove (7-3) and a slide block (7-4) are respectively installed in the middle of the two arch foot supports (7-2); A limiting cylinder (7-5) is arranged on the sliding block (7-4) and is slidably matched with the open sliding groove (7-3).

8. The reprogrammable damper according to claim 6, characterized in that Two adjacent core arch units (7) are connected via an arch unit connecting piece (9).

9. The reprogrammable damper according to claim 8, characterized in that The length of the arch unit connecting piece (9) is greater than twice the height of the arch (7-1) in the core arch unit (7).

10. The reprogrammable damper according to claim 1, characterized in that A row of top arch unit groups includes: a plurality of top arch units, wherein the top arch units include: Arch (8-1); An open slide groove (8-3) arranged at one end of the arch (8-1); A sliding block (8-4) is arranged at the other end of the arch (8-1), and the sliding block (8-4) is provided with a limiting cylinder (8-5) that cooperates with the open sliding groove (8-3); A top mounting plate (8-6) is arranged on the open slide groove (8-3).

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