Vertical bearing-shock / vibration reducing support

Abstract

The invention discloses a vertical bearing-shock / vibration absorbing support, which relates to the technical field of civil engineering structures, and comprises a lower cylinder body, an upper sliding cylinder body and a composite combined disc spring, and a disc spring mandrel is fixed at the center of the inner bottom surface of the lower cylinder body; the lower portion of the upper sliding cylinder is arranged in the lower cylinder, a high-damping viscoelastic material layer is arranged between the outer wall of the upper sliding cylinder and the inner wall of the lower cylinder and provides bearing force for vertical deformation of the support, and the bottom face of the upper sliding cylinder is provided with a through hole for a disc spring mandrel to penetrate through. The composite combined disc spring is arranged on the outer side of the disc spring mandrel in a sleeving mode and abuts against the portion between the inner bottom wall of the lower barrel and the outer bottom wall of the upper sliding barrel. Through the synergistic effect of the high-damping viscoelastic material layer and the composite combined disc springs, the vertical bearing capacity is enhanced, and the requirements of projects such as high-rise buildings and large-span bridges can be met. Meanwhile, the material layer and the disc spring can effectively dissipate energy during an earthquake, the shock absorption / vibration reduction performance is improved, and structural safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering structures, and more specifically, to a vertical load-bearing - shock / vibration reduction bearing. Background Art

[0002] With the accelerating advancement of China's urbanization process, a large number of super high-rise buildings, long-span bridges, and complex spatial structures have emerged continuously. During the design and construction processes of these building structures, extremely stringent challenges have been posed to engineering seismic design. In order to effectively improve the safety performance of buildings and ensure the safety of people's lives and property, the design concept of energy dissipation and shock / vibration reduction has gradually received extensive attention and has been widely applied to actual projects.

[0003] Traditional shock / vibration reduction bearings, as key components in seismic design, have long played an important role in various building and bridge projects. These bearings mainly dissipate seismic energy through their own deformation, thereby reducing the seismic forces suffered by the structure. However, common traditional shock / vibration reduction bearings have gradually exposed some problems and limitations in practical applications:

[0004] Insufficient load-bearing stiffness: When traditional bearings cope with vertical ground motions, they often struggle to provide sufficient load-bearing stiffness, resulting in large deformations and displacements of the structure under vertical seismic actions, which affects the stability and safety of the structure.

[0005] Low energy dissipation efficiency: In the case of multi-directional coupled vibrations, the energy dissipation effect of traditional shock / vibration reduction bearings is not ideal. Due to their relatively single energy dissipation mechanism, they cannot efficiently dissipate seismic energy, making the structure still likely to suffer significant impacts and damages during earthquakes.

[0006] Limited durability: Especially when encountering rare earthquakes, isolation bearings made of a single material are prone to being affected by external high-frequency vibrations and generating fatigue damage. This fatigue damage will gradually accumulate and may ultimately lead to the failure of the bearing, rendering it unable to work properly and seriously affecting the safe service life of the building.

[0007] In view of the above-mentioned various defects of traditional shock / vibration reduction bearings, the market urgently needs a new type of bearing that can balance vertical load-bearing and shock / vibration reduction performance. This new type of bearing should have high load-bearing capacity to meet the requirements of engineering scenarios with extremely high safety requirements such as super high-rise buildings, long-span bridges, and nuclear power plants; at the same time, it should also have excellent energy dissipation capacity and good durability, be able to stably play a shock / vibration reduction role for a long time in a complex seismic environment, effectively protect the structure from earthquake damage, reduce the risk of earthquake disasters, and ensure the safety of people's lives and property. Therefore, the research and development of a vertical load-bearing - shock / vibration reduction bearing has extremely important practical significance and broad application prospects. Summary of the Invention

[0008] In view of this, the present invention provides a vertical load-bearing and shock / vibration isolation bearing, which can effectively resist lateral shear and longitudinal dynamic loads under earthquake action, can also remain stable under extreme conditions, has good seismic performance, and is simple to manufacture and install.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A vertical load-bearing and shock / vibration isolation bearing, comprising:

[0011] A lower cylinder, the top of the lower cylinder is open, and a disc spring core shaft is fixed at the center of the inner bottom surface of the lower cylinder;

[0012] An upper sliding cylinder, the lower part of the upper sliding cylinder is arranged inside the lower cylinder, and a high-damping viscoelastic material layer is arranged between the outer wall of the upper sliding cylinder and the inner wall of the lower cylinder to provide bearing capacity for the vertical deformation of the bearing. A through hole for the disc spring core shaft to pass through is provided on the bottom surface of the upper sliding cylinder;

[0013] A composite combined disc spring, the composite combined disc spring is sleeved outside the disc spring core shaft and is pressed between the inner bottom wall of the lower cylinder and the outer bottom wall of the upper sliding cylinder.

[0014] Through the above technical solutions, the present invention realizes the enhancement of the vertical load-bearing capacity through the synergistic effect of the high-damping viscoelastic material layer and the composite combined disc spring, and can meet the requirements of projects such as high-rise buildings and long-span bridges. At the same time, the material layer and the disc spring can effectively dissipate energy during an earthquake, improve the shock / vibration isolation performance, and ensure the structural safety. The bearing is simple to install and maintain, has high connection strength, and can play a role stably for a long time.

[0015] Preferably, in the above vertical load-bearing and shock / vibration isolation bearing, a lower anchor rod is fixed on the outer bottom surface of the lower cylinder, an upper connecting plate is fixed on the top of the upper sliding cylinder, and an upper anchor rod is fixed on the top surface of the upper connecting plate.

[0016] Preferably, in the above vertical load-bearing and shock / vibration isolation bearing, both the upper anchor rod and the lower anchor rod are connected by welding or by nut fasteners to ensure the connection strength.

[0017] Preferably, in the above vertical load-bearing and shock / vibration isolation bearing, a stiffening rib is provided at the connection of the upper anchor rod and the lower anchor rod to ensure the connection strength.

[0018] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the lower part of the upper sliding cylinder extends into the interior of the lower cylinder, and there is a gap between it and the bottom surface of the lower cylinder. The upper part of the upper sliding cylinder is exposed outside the lower cylinder, providing shear strength for the overall bearing. There is a vertical limit distance between the top edge of the lower cylinder and the upper connecting plate, which determines the maximum compressive deformation of the bearing.

[0019] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, both the interior of the upper sliding cylinder and the outer bottom wall of the lower cylinder are provided with vertical stiffening rib plates to prevent excessive deformation.

[0020] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the vertical stiffening rib plates on the outer bottom wall of the lower cylinder are arranged horizontally and vertically in a crisscross pattern to prevent excessive deformation at the bottom of the lower cylinder when an external load acts.

[0021] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the diameter of the through hole on the bottom surface of the upper sliding cylinder is larger than the diameter of the disc spring mandrel.

[0022] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the diameter of the disc spring mandrel is smaller than the aperture of the composite combined disc spring.

[0023] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the high-damping viscoelastic material layer is natural rubber, nitrile rubber, chloroprene rubber, polyurethane, polyester, or a combination of rubber and plastic, or a combination of rubber and metal materials.

[0024] Preferably, in the above-mentioned vertical load-bearing and shock / vibration damping bearing, the high-damping viscoelastic material layer is simultaneously adhered to the outer wall of the upper sliding cylinder and the inner wall of the lower cylinder without leaving any gaps.

[0025] Through the above technical solutions, compared with the prior art, the present invention discloses a vertical load-bearing and shock / vibration damping bearing, which has the following beneficial effects:

[0026] 1. In terms of structural performance: The high-damping viscoelastic material layer and the composite combined disc spring work together to significantly improve the vertical bearing capacity of the bearing, meeting the requirements of complex projects such as super high-rise buildings and long-span bridges. The high-damping viscoelastic material layer and the composite combined disc spring can efficiently dissipate energy during an earthquake, effectively reducing the damage to the structure caused by the earthquake and ensuring the structural safety.

[0027] 2. In terms of durability: High-damping viscoelastic materials and composite combined disc springs with strong weather resistance are selected, combined with design optimizations such as vertical stiffening rib plates, to ensure the long-term stable operation of the bearing and extend its service life.

[0028] 3. In terms of construction and maintenance: The upper anchor bolt and the lower anchor bolt are connected by welding or nut fasteners, and the installation process is simple and fast. The reasonable design and the selection of high-performance materials enable the bearing to maintain good performance during long-term use, reducing the maintenance workload.

[0029] 4. In terms of comprehensive benefits: While meeting high performance, it ensures cost-effectiveness, simplifies the construction process, reduces maintenance costs, and has strong market competitiveness. It is applicable to a variety of complex engineering scenarios, such as super high-rise buildings, long-span bridges, nuclear power plants, etc., and is especially suitable for scenarios that need to balance vertical stability and shock / vibration reduction performance. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0031] Figure 1 The drawings are the main cross-sectional views of the vertical load-bearing - shock / vibration reduction bearing provided by the present invention;

[0032] Figure 2 The drawings are the main views of the vertical load-bearing - shock / vibration reduction bearing provided by the present invention;

[0033] Figure 3 The drawings are the top cross-sectional views of the vertical load-bearing - shock / vibration reduction bearing provided by the present invention.

[0034] Among them:

[0035] 1. Upper anchor bolt, 2. Upper connecting plate, 3. Upper sliding cylinder, 4. High-damping viscoelastic material layer, 5. Lower cylinder, 6. Composite combined disc spring, 7. Vertical stiffening rib plate, 8. Lower anchor bolt, 9. Disc spring core shaft. Detailed Embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Refer to Att Figure 1 to Att Figure 3 , the embodiments of the present invention disclose a vertical load-bearing - shock / vibration reduction bearing, including:

[0038] Lower cylinder body 5, with an opening at the top of the lower cylinder body 5, and a disc spring core shaft 9 is fixed at the center of the inner bottom surface of the lower cylinder body 5;

[0039] Upper sliding cylinder body 3, the lower part of the upper sliding cylinder body 3 is arranged inside the lower cylinder body 5, and a high-damping viscoelastic material layer 4 is provided between the outer wall of the upper sliding cylinder body 3 and the inner wall of the lower cylinder body 5. The bottom surface of the upper sliding cylinder body 3 has a through hole for the disc spring core shaft 9 to pass through;

[0040] Composite combined disc spring 6, the composite combined disc spring 6 is sleeved outside the disc spring core shaft 9 and is pressed tightly between the inner bottom wall of the lower cylinder body 5 and the outer bottom wall of the upper sliding cylinder body 3.

[0041] To further optimize the above technical solution, a lower anchor rod 8 is fixed on the outer bottom surface of the lower cylinder body 5, an upper connecting plate 2 is fixed on the top of the upper sliding cylinder body 3, and an upper anchor rod 1 is fixed on the top surface of the upper connecting plate 2.

[0042] To further optimize the above technical solution, both the upper anchor rod 1 and the lower anchor rod 8 are connected by welding or by nut fasteners.

[0043] To further optimize the above technical solution, a stiffening rib is provided at the connection between the upper anchor rod 1 and the lower anchor rod 8.

[0044] To further optimize the above technical solution, the lower part of the upper sliding cylinder body 3 extends into the interior of the lower cylinder body 5 and has a gap with the bottom surface of the lower cylinder body 5. The upper part of the upper sliding cylinder body 3 is exposed outside the lower cylinder body 5, and there is a vertical limiting distance between the top edge of the lower cylinder body 5 and the upper connecting plate 2.

[0045] To further optimize the above technical solution, both the interior of the upper sliding cylinder body 3 and the outer bottom wall of the lower cylinder body 5 are provided with vertical stiffening rib plates 7.

[0046] To further optimize the above technical solution, the vertical stiffening rib plates 7 on the outer bottom wall of the lower cylinder body 5 are arranged horizontally and vertically in a criss-cross manner.

[0047] To further optimize the above technical solution, the diameter of the through hole on the bottom surface of the upper sliding cylinder body 3 is larger than the diameter of the disc spring core shaft 9.

[0048] To further optimize the above technical solution, the diameter of the disc spring core shaft 9 is smaller than the hole diameter of the composite combined disc spring 6.

[0049] To further optimize the above technical solution, the high-damping viscoelastic material layer 4 is natural rubber, nitrile rubber, chloroprene rubber, polyurethane, polyester, or a combination of rubber and plastic, or a combination of rubber and metal material.

[0050] In this embodiment, the upper anchor rod 1 and the lower anchor rod 8 can be respectively buried into the upper structure and the lower foundation, so as to fix the entire bearing.

[0051] In this embodiment, the vertical deformation bearing capacity of the vertical load-bearing and shock / vibration damping bearing is mainly provided by components such as the composite combined disc spring 6 and the high-damping viscoelastic material layer 4, and the bearing only produces large displacements vertically. The horizontal shear bearing capacity is mainly provided by the upper sliding cylinder 3, the disc spring mandrel 9, and the lower cylinder 5.

[0052] In this embodiment, the initial compression deformation of the composite combined disc spring 6 under the action of gravity load is always greater than the tensile deformation of the bearing under rare or extremely rare earthquakes, that is, the whole bearing is always in a compressed state.

[0053] The vertical load-bearing and shock / vibration damping bearing provided by the present invention combines disc springs and high-damping viscoelastic damping materials to increase the "support-energy dissipation" advantage of the bearing, and can effectively cope with the lateral shear caused by the external environment. It has the advantages of high bearing capacity, strong durability and economy, and is especially suitable for complex engineering scenarios that require both vertical stability and shock / vibration damping performance.

[0054] Compared with the existing shock damping components, the durability and safety of the structure under earthquakes are enhanced. The structure of the bearing can effectively reduce the lateral displacement under earthquake action, improve the overall vertical bearing capacity and shear resistance, and at the same time, the construction and assembly methods are relatively simple, with obvious advantages.

[0055] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical load-bearing and shock / vibration isolation support, characterized in that Comprising: A lower cylinder body (5), the top of the lower cylinder body (5) is open, and a disc spring core shaft (9) is fixed at the center of the inner bottom surface of the lower cylinder body (5); An upper sliding cylinder body (3), the lower part of the upper sliding cylinder body (3) is arranged inside the lower cylinder body (5), and a high-damping viscoelastic material layer (4) is arranged between the outer wall of the upper sliding cylinder body (3) and the inner wall of the lower cylinder body (5). The bottom surface of the upper sliding cylinder body (3) has a through hole for the disc spring core shaft (9) to pass through; A composite combined disc spring (6), the composite combined disc spring (6) is sleeved outside the disc spring core shaft (9) and is tightly pressed between the inner bottom wall of the lower cylinder body (5) and the outer bottom wall of the upper sliding cylinder body (3).

2. The vertical load-bearing and shock / vibration isolation support according to claim 1, wherein A lower anchor rod (8) is fixed on the outer bottom surface of the lower cylinder body (5), an upper connecting plate (2) is fixed on the top of the upper sliding cylinder body (3), and an upper anchor rod (1) is fixed on the top surface of the upper connecting plate (2).

3. The vertical load-bearing and shock / vibration isolation support according to claim 2, characterized in that, Both the upper anchor rod (1) and the lower anchor rod (8) are connected by welding or by nut fasteners.

4. The vertical load-bearing and shock / vibration isolation support according to claim 3, characterized in that, A stiffening rib is provided at the connection of the upper anchor rod (1) and the lower anchor rod (8).

5. The vertical load-bearing and shock / vibration isolation support according to claim 2, characterized in that, The lower part of the upper sliding cylinder body (3) extends into the inside of the lower cylinder body (5) and has a gap with the bottom surface of the lower cylinder body (5). The upper part of the upper sliding cylinder body (3) is exposed outside the lower cylinder body (5), and there is a vertical limiting distance between the top edge of the lower cylinder body (5) and the upper connecting plate (2).

6. The vertical load-bearing and shock / vibration isolation support according to claim 1, characterized in that Both the inside of the upper sliding cylinder body (3) and the outer bottom wall of the lower cylinder body (5) are provided with vertical stiffening rib plates (7).

7. The vertical load-bearing and shock / vibration isolation support according to claim 1, wherein The vertical stiffening rib plates (7) on the outer bottom wall of the lower cylinder body (5) are arranged horizontally and vertically in a criss-cross manner.

8. A vertical load-bearing - shock / vibration isolation support according to claim 1, characterized in that, The diameter of the through hole on the bottom surface of the upper sliding cylinder body (3) is larger than the diameter of the disc spring core shaft (9).

9. The vertical load-bearing and shock / vibration isolation bearing according to claim 1, wherein The diameter of the disc spring core shaft (9) is smaller than the aperture of the composite combined disc spring (6).

10. The vertical load-bearing and shock / vibration isolation bearing according to claim 1, characterized in that, The high-damping viscoelastic material layer (4) is natural rubber, nitrile rubber, neoprene, polyurethane, polyester, or a combination of rubber and plastic, or a combination of rubber and metal material.

Images