Buffering and energy-absorbing three-way damping mechanism

Abstract

According to the buffering and energy-absorbing three-way damping mechanism, when an earthquake occurs, an upper structure is limited through a rotary connecting device, so that the upper structure only rotates around a rigid body of the rotary connecting device, and then the upper structure integrally swings within the range allowed by the design; then energy is absorbed and dispersed through the deformation and energy dissipation effects of the vertical connecting devices, the influence of an earthquake on the upper structure is reduced, the purposes of seismic resistance and shock absorption are achieved through the combination of the devices, and damage to the upper structure under the strong earthquake effect is effectively relieved; meanwhile, due to the fact that the connecting structure has high self-resetting capacity, residual displacement of the structure after an earthquake can be effectively controlled, further damage to the upper structure is avoided, and structure repairing is facilitated; after the anti-seismic capacity of the upper structure is enhanced through the connecting structure, the requirement can be lowered when the anti-seismic performance of the upper structure is designed, and therefore higher economic value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shockproofing and damping, in particular to a three-way shock-absorbing mechanism for buffering and absorbing energy. Background Art

[0002] In order to improve the safety and functionality of building structures under earthquakes and reduce losses caused by earthquake disasters, design methods such as seismic resilience design, performance-based seismic design, isolation and energy dissipation shock absorption technology, seismic design of non-structural components, and structural optimization design are often used in building structure design. As a relatively advanced seismic and shock-absorbing structure at this stage, the recoverable function seismic structural system can enable buildings to maintain an acceptable level of functionality during an earthquake. After an earthquake, the building structure does not require complex repairs or only requires minor repairs to restore its function. This can effectively improve the seismic resilience of urban buildings and infrastructure, and reduce the economic losses and social impacts caused by earthquake disasters.

[0003] As a type of structural form of a restorable earthquake-resistant structure, a self-resetting rocking structure, such as the one disclosed in CN118774261A, can effectively control residual displacement after an earthquake, ensuring the functionality and safety of the structure. Furthermore, since the building's displacement during an earthquake is small, subsequent repair of the structure is less difficult and repair construction is more rapid. Similarly, the shock-absorbing effect of the rocking action reduces the ductility design requirements of the structure itself, saving structural costs. The self-resetting rocking structure can be applied to various structural systems, such as rocking bridge piers, reinforced concrete frames, steel frames, and shear walls. Given its structural characteristics, its application has significant economic significance and social value. While the self-resetting rocking structure offers significant advantages in seismic performance and rapid post-earthquake recovery, it also faces challenges and problems in practical application. The design of the self-resetting rocking structure requires consideration of multiple factors, including structural stability, strength, and behavior under different earthquake intensities, which increases the design complexity. Furthermore, to ensure the structure can self-reset after rocking, special materials and techniques, such as post-tensioned prestressed tendons, are often required, which can increase construction difficulty and cost. The utility model provides a three-way shock-absorbing mechanism for buffering and absorbing energy to solve the above problems. Utility Model Content

[0004] The utility model provides a three-way shock-absorbing mechanism for buffering and absorbing energy, which reduces damage to the structure under strong earthquakes through a swing mechanism, and has small residual deformation of the structure after the earthquake, which is conducive to quickly restoring the use function of the structure.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A three-way shock-absorbing mechanism for buffering and absorbing energy, comprising an upper structure, a connecting layer, and a lower foundation, wherein the connecting layer is located between the upper structure and the lower foundation, the connecting structure is located in the connecting layer, and the connecting structure comprises a rotating connecting device and a vertical connecting device, wherein the rotating connecting device is located at the center of the upper structure, the top of the rotating connecting device is connected to the upper structure, and the bottom of the rotating connecting device is disposed on the lower foundation, and the vertical connecting device is located at the periphery of the rotating connecting device, and the upper and lower portions thereof are connected to the upper structure and the lower foundation, respectively;

[0007] The upper structure is a cylindrical structure, including a cylinder wall and a cylinder bottom; the lower foundation includes a pedestal and supporting piles, and the pedestal is set on the ground through the supporting piles.

[0008] Furthermore, the vertical connection device includes a vertical tensile and compressive elastic support and a pier. When the vertical tensile and compressive elastic support is arranged at the upper part of the connection layer, the top of the vertical connection device is directly connected to the upper structure, and the bottom thereof is connected to the lower foundation through the pier; when the vertical tensile and compressive elastic support is arranged at the middle part of the connection layer, the top of the vertical connection device is connected to the upper structure through the pier, and the bottom thereof is connected to the lower foundation through the pier; when the vertical tensile and compressive elastic support is arranged at the lower part of the connection layer, the top of the vertical connection device is connected to the upper structure through the pier, and the bottom thereof is directly connected to the lower foundation.

[0009] Furthermore, the rotating connection device includes a rotating box and a rotating seat, the rotating box is arranged on the lower foundation, the rotating seat is arranged at the center of the bottom surface of the upper structure and is located in the rotating box, and the rotating seat rotates around the center of the ball in the rotating box.

[0010] Furthermore, the vertical connection devices are evenly spaced within the connection layer and arranged in a circular shape, and the rotating connection device is located at the center of the circle; the vertical connection devices are arranged in a centrally symmetrical manner.

[0011] Furthermore, a limiting device is provided on the vertical tension and compression elastic support.

[0012] Furthermore, it also includes an energy dissipation and shock absorption device, which is located in the connecting layer. The energy dissipation and shock absorption device is arranged at intervals on the lower foundation and is connected to the upper structure.

[0013] Preferably, the vertical tension-compression elastic support is a spiral tension-compression support, a disc spring support, a thick rubber support and / or an air spring support.

[0014] Preferably, the energy dissipation and vibration reduction device includes a viscous damper and a viscoelastic damper.

[0015] The beneficial effects of the utility model are as follows:

[0016] When an earthquake occurs, the upper structure is restricted by the rotating connection device so that it only rotates as a rigid body around the rotating connection device, thereby causing the upper structure to swing as a whole within the range allowed by the design. Then, the deformation and energy dissipation of the vertical connection device are used to absorb and disperse energy, thereby reducing the impact of the earthquake on the upper structure. The combination of the above devices achieves the purpose of earthquake resistance and shock absorption, and effectively reduces the damage and destruction to the upper structure under the action of strong earthquakes. At the same time, since the connection structure has a strong self-resetting ability, it can effectively control the residual displacement of the structure itself after the earthquake, avoid further damage to the upper structure, and is also conducive to the repair of the structure. After the seismic capacity of the upper structure is strengthened by the connection structure, the requirements can also be lowered when designing the seismic performance of the upper structure, thereby having higher economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the self-resetting state of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall application structure of the utility model;

[0019] Figure 3 This is a top view schematic diagram of the connection structure of the utility model in the connection state;

[0020] Figure 4 This is a schematic diagram of the connection state of the vertical connection device of the present utility model.

[0021] Figure numerals: 1. upper structure; 2. connecting structure; 21. rotating connecting device; 211. rotating box; 212. rotating seat; 22. vertical connecting device; 221. vertical tension and compression elastic support; 222. pier; 3. lower foundation; 31. pedestal; 32. supporting pile. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figure 1 、 2 As shown in Figure 3, a specific embodiment of the present invention is applied to a cylindrical structure of a steel frame structure, a three-way shock-absorbing mechanism for buffering and absorbing energy, including an upper structure 1, a connecting layer and a lower foundation 3. The upper structure 1 is specifically a large cylindrical storage facility such as a silo, a liquefied natural gas storage tank, an oil storage tank or a granary. The lower foundation 3 is a pile foundation, which serves as the installation foundation for the upper structure 1 and the connecting layer; the connecting layer is located between the upper structure 1 and the lower foundation 3, and the connecting structure 2 is located in the connecting layer. The connecting structure 2 includes a rotating connecting device 21 and a vertical connecting device 22. The rotating connecting device 21 is located at the center of the upper structure 1. The top of the rotating connecting device 21 is connected to the upper structure 1, and its bottom is set on the lower foundation 3. The vertical connecting device 22 is located on the periphery of the rotating connecting device 21, and its upper and lower parts are connected to the upper structure 1 and the lower foundation 3 respectively.

[0025] like Figure 1 、 2 As shown in Figure 3, the vertical connection device 22 is arranged in a circle, and the rotating connection device 21 is located at the center of the circle. When an earthquake occurs, the vertical connection device 22 does not constrain the horizontal lateral displacement of the upper structure, and only provides vertical tensile and compressive bearing capacity, and does not bear any shear bearing capacity in the horizontal direction. The rotating connection device 21 restricts the upper structure and only allows it to produce a rotation position, while limiting the linear displacement of the upper structure in the horizontal direction, so that the upper structure produces a rigid body rotation around the rotating connection device 21 under the action of the earthquake force, causing the upper structure to sway under the action of a strong earthquake. Through the joint action of the rotating connection device 21 and the vertical connection device 22, when an earthquake occurs, the upper structure 1 produces a rigid body rotation around the rotating connection device 21, and the upper structure 1 is allowed to swing as a whole within the design allowable range. The deformation of the vertical connection device 22 and the energy dissipation device absorb and disperse energy, thereby reducing earthquake damage and destruction to the upper structure 1 when an earthquake occurs. In addition, the upper structure 1 can stably reset itself after swinging, effectively controlling the residual displacement of the structure after the earthquake, avoiding further expansion of the structural displacement, and reducing the cost of post-earthquake repair.

[0026] This connection structure is suitable for structures with greater rigidity. Structures with greater rigidity can adapt to deformation requirements under extreme loads, and can achieve seismic and shock-absorbing effects under the joint action of the rotating connection device 21 and the vertical connection device 22. Moreover, structures with greater rigidity can reduce dependence on structural ductility design.

[0027] Furthermore, within the constraints of the rotational connection device 21 and the vertical connection device 22, during an earthquake, the horizontal lateral displacement of the upper structure 1 caused by the rigid body rotation displacement under the action of the earthquake is no less than 30% of the overall horizontal lateral displacement of the upper structure 1. This ensures that the upper structure 1 can achieve a self-resetting rocking motion during an earthquake without causing structural collapse due to excessive displacement. During the specific configuration, the ratio is controlled between 30% and 80% by selecting the rotational connection device 21 and the vertical connection device 22, taking into account both earthquake resistance and structural stability.

[0028] like Figure 2 、 3 4, further, the vertical connection device 22 includes a vertical tension and compression elastic support 221 and a pier 222, and different structures are adopted according to the different setting positions of the vertical tension and compression elastic support 221; when the vertical tension and compression elastic support 221 is arranged at the upper part of the connection layer, the top of the vertical connection device 22 is directly connected to the upper structure 1, and the bottom thereof is connected to the lower foundation 3 through the pier 222; when the vertical tension and compression elastic support 221 is arranged at the middle part of the connection layer, the top of the vertical connection device 22 is connected to the upper structure 1 through the pier 222, and the bottom thereof is connected to the lower foundation 3 through the pier 222; when the vertical tension and compression elastic support 221 is arranged at the lower part of the connection layer, the top of the vertical connection device 22 is connected to the upper structure 1 through the pier 222, and the bottom thereof is directly connected to the lower foundation 3, and the vertical connection device 22 and the rotation connection device 21 are located at the same height.

[0029] like Figure 2 、 3 As shown, further, the rotating connection device 21 includes a rotating box 211 and a rotating seat 212, the rotating box 211 is arranged on the lower foundation 3, and the rotating seat 212 is arranged at the center of the bottom surface of the upper structure 1 and is located in the rotating box 211. When an earthquake occurs, the upper structure 1 drives the rotating seat 212 to rotate around the axis of the rotating box 211, and restricts the upper structure 1 to cause it to rotate as a rigid body around the axis.

[0030] Furthermore, the vertical connection devices 22 are evenly spaced within the connection layer and arranged in a circular shape, and the rotating connection device 21 is located at the center of the circle.

[0031] Furthermore, the vertical connection device 22 is arranged in a centrally symmetrical manner, ensuring that the support effect provided by the vertical connection device 22 is uniform and stable.

[0032] Furthermore, the upper structure 1 is a cylindrical structure, including a cylinder wall and a cylinder bottom, and the tops of the rotating connection device 21 and the vertical connection device 22 are connected to the cylinder bottom.

[0033] Furthermore, the upper structure 1 is a cylindrical steel frame structure or a cylindrical concrete structure, and the rigidity of the cylindrical upper structure is improved by setting supports and increasing the cross-sectional size; when the upper structure 1 is a cylindrical steel frame structure, its own rigidity is relatively large; when the upper structure 1 is a cylindrical concrete structure, the side wall is improved by adopting steel or fiber-reinforced concrete materials, or applying prestress along the height direction in the side wall, applying prestress in the circumferential direction, etc.

[0034] Furthermore, the superstructure 1 may also be a traditional building structure comprising components such as columns, beams, and walls, or a specific structure composed of vertical compression-bending components, such as a water tower, a signal tower, a power line tower, and industrial and military buildings.

[0035] Furthermore, the lower foundation 3 includes a foundation 31 and support piles 32 , and the foundation 31 is set on the ground through the support piles 32 .

[0036] Furthermore, a limiting device is provided on the vertical tensile and compressive elastic support 221. By setting the limiting device, when the tensile deformation or compressive deformation of the vertical tensile and compressive elastic support 221 reaches the design limit, the tensile stiffness or compressive stiffness of the vertical tensile and compressive elastic support 221 will be significantly increased, thereby reducing the tensile and compressive deformation of the support.

[0037] Furthermore, it also includes an energy dissipation and shock absorption device 4, which is located in the connection layer, is spaced apart on the lower foundation 3, and is connected to the upper structure 1. The vertical tensile and compressive deformation of the energy dissipation and shock absorption device 4 achieves buffering and energy dissipation.

[0038] Preferably, the energy dissipation and vibration reduction device 4 includes a viscous damper and a viscoelastic damper.

[0039] Preferably, the vertical tension and compression elastic support 221 is a spiral tension and compression support, a disc spring support, a thick rubber support and / or an air spring support. During actual construction, multiple similar or different supports are selected for combined application according to the on-site working conditions.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

Claims

1. A three-way shock absorption mechanism for buffering and absorbing energy, characterized by: The invention comprises an upper structure (1), a connection layer and a lower foundation (3), wherein the connection layer is located between the upper structure (1) and the lower foundation (3), the connection structure (2) is located in the connection layer, the connection structure (2) comprises a rotation connection device (21) and a vertical connection device (22), the rotation connection device (21) is located at the center of the upper structure (1), the top of the rotation connection device (21) is connected to the upper structure (1), and the bottom of the rotation connection device (21) is arranged on the lower foundation (3), and the vertical connection device (22) is located on the periphery of the rotation connection device (21), and the upper and lower parts thereof are connected to the upper structure (1) and the lower foundation (3) respectively; The upper structure (1) is a cylindrical structure, comprising a cylindrical wall and a cylindrical bottom; the lower foundation (3) comprises a bearing platform (31) and support piles (32), and the bearing platform (31) is arranged on the ground through the support piles (32).

2. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 1, characterized in that: The vertical connection device (22) comprises a vertical tension-compression elastic support (221) and a pier (222). When the vertical tension-compression elastic support (221) is arranged at the upper part of the connection layer, the top of the vertical connection device (22) is directly connected to the upper structure (1), and the bottom thereof is connected to the lower foundation (3) through the pier (222); when the vertical tension-compression elastic support (221) is arranged at the middle part of the connection layer, the top of the vertical connection device (22) is connected to the upper structure (1) through the pier (222), and the bottom thereof is connected to the lower foundation (3) through the pier (222); when the vertical tension-compression elastic support (221) is arranged at the lower part of the connection layer, the top of the vertical connection device (22) is connected to the upper structure (1) through the pier (222), and the bottom thereof is directly connected to the lower foundation (3).

3. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 1, characterized in that: The rotating connection device (21) comprises a rotating box (211) and a rotating seat (212), wherein the rotating box (211) is arranged on the lower foundation (3), and the rotating seat (212) is arranged at the center of the bottom surface of the upper structure (1) and is located in the rotating box (211), and the rotating seat (212) rotates around the center of the ball in the rotating box (211).

4. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 1, characterized in that: The vertical connection devices (22) are evenly spaced and arranged in a circular shape within the connection layer, and the rotating connection device (21) is located at the center of the circle; the vertical connection devices (22) are arranged in a centrally symmetrical manner.

5. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 2, characterized in that: A limiting device is provided on the vertical tension-compression elastic support (221).

6. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 1, characterized in that: It also includes an energy dissipation and shock absorption device (4), which is located in the connection layer. The energy dissipation and shock absorption device (4) is arranged at intervals on the lower foundation (3) and is connected to the upper structure (1).

7. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 2, characterized in that: The vertical tension-compression elastic support (221) is a spiral tension-compression support, a disc spring support, a thick rubber support and / or an air spring support.

8. The three-way shock absorbing mechanism for buffering and absorbing energy according to claim 6, characterized in that: The energy dissipation and vibration reduction device (4) comprises a viscous damper and a viscoelastic damper.

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