Novel three-dimensional shock insulation support structure

Abstract

The utility model belongs to the technical field of rail transit structure engineering, and particularly relates to a novel three-dimensional shock insulation support structure. Through reasonable arrangement of the upper thick-layer rubber layer, the lower thin-layer rubber layer, the upper sealing plate, the lower sealing plate, the connecting plate, the anti-sidesway baffle and the tensile baffle, the vibration isolation device is compact in structure, convenient to arrange and install and capable of effectively isolating vibration caused by subway operation and earthquakes. When the bearing structure is subjected to a vertical compression load, the thick rubber layer and the thin rubber layer are subjected to compression deformation at the same time, so that the vertical compression rigidity is reduced, and the inherent frequency of the bearing structure can be effectively reduced; when the support bears a transverse shear load, horizontal shear deformation of the upper thick rubber layer is limited through the anti-sidesway baffle, and the whole support can be effectively prevented from being overturned and damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation structure engineering, and specifically relates to a novel three-dimensional seismic isolation support structure. Background Art

[0002] The environmental vibrations caused by subway operation have a significant impact on the normal lives and work of residents along the subway lines. Existing research shows that building vibrations caused by train operation can easily cause discomfort or even panic among residents, and the secondary noise generated by this vibration poses a serious health hazard to residents. Furthermore, earthquakes are sudden natural disasters that endanger people's lives and property. Earthquakes and the secondary disasters they trigger cause massive collapse and damage to buildings and structures, including their internal facilities, resulting in significant loss of life and property. Therefore, the development of a new three-dimensional vibration isolation bearing that can effectively isolate both subway-induced vibrations and earthquakes is of great significance.

[0003] The existing rail transit seismic isolation bearing structure essentially treats the structure itself and its main load-bearing components as "energy-absorbing" components, allowing the structure itself and its components to suffer varying degrees of damage during an earthquake. However, since it relies on the plastic deformation of its own structural components to absorb seismic energy, under the action of a strong earthquake, the structure will undergo significant deformation, and may even lose its function. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel three-dimensional seismic isolation support structure which has a compact structure, is easy to arrange and install, and can effectively isolate vibrations caused by subway operation and earthquakes.

[0005] The technical solutions adopted by the present invention to solve the above technical problems are:

[0006] A novel three-dimensional seismic isolation bearing structure includes an upper connecting plate 1, an upper sealing plate 2, an upper rubber layer 3, a middle sealing plate 1 8, a middle connecting plate 4, a middle sealing plate 2 9, a lower rubber layer 5, a lower sealing plate 6, and a lower connecting plate 7, which are connected in sequence from top to bottom. The top of the upper connecting plate 1 is fixedly connected to the supported structure above the bearing, and the bottom of the lower connecting plate 7 is fixedly connected to the support base.

[0007] The outer rings of the upper connecting plate 1, the upper sealing plate 2, the upper rubber layer 3 and the middle sealing plate 8 are covered with an anti-lateral displacement baffle 14, and the top of the anti-lateral displacement baffle 14 is higher than the upper connecting plate 1 and is bent toward the center of the upper connecting plate 1 to form a tensile baffle 10.

[0008] Furthermore, a sliding groove 13 adapted to the upper connecting plate 1 and the upper sealing plate 2 is vertically opened on the inner wall of the anti-lateral displacement baffle 14. When the upper rubber layer 3 is subjected to a vertical load, it drives the upper connecting plate 1 and the upper sealing plate 2 to move up and down along the sliding groove 13.

[0009] Furthermore, a lubricating material 11 is filled between the outer rings of the upper connecting plate 1 and the upper sealing plate 2 and the sliding groove 13 .

[0010] Furthermore, the thickness of each rubber layer in the upper rubber layer 3 is greater than the thickness of each rubber layer in the lower rubber layer 5 .

[0011] Furthermore, an interlayer steel plate 12 is provided between each layer of rubber in the upper rubber layer 3 .

[0012] Furthermore, an interlayer steel plate 15 is provided between each layer of rubber in the lower rubber layer 5 .

[0013] Furthermore, the bottom of the anti-lateral displacement baffle 14 is connected to the upper end surface of the middle connecting plate 4, and the top portion of the anti-lateral displacement baffle 14 which is higher than the upper connecting plate 1 is bent toward the center direction of the upper connecting plate 1 to form a tensile baffle 10, and a gap is reserved between the tensile baffle 10 and the upper end surface of the upper connecting plate 1.

[0014] Furthermore, the anti-lateral shift baffle 14 is specifically made of steel.

[0015] Compared with the prior art, the present invention has the following main advantages:

[0016] 1. The utility model provides a new three-dimensional seismic isolation bearing structure. Through the reasonable arrangement of the upper thick rubber layer, the lower thin rubber layer, the upper and lower sealing plates, the connecting plates, and the anti-lateral displacement baffles and the anti-tension baffles, the structure is compact and easy to arrange and install, and can effectively isolate the vibration caused by subway operation and earthquakes.

[0017] 2. When subjected to vertical compressive loads, the thick rubber layer and the thin rubber layer are simultaneously compressed and deformed to reduce the vertical compression stiffness, which can effectively reduce the natural frequency of the support structure; when subjected to lateral shear loads, the anti-lateral displacement baffle limits the horizontal shear deformation of the upper thick rubber layer, which can effectively prevent the entire support from overturning and damage.

[0018] 3. Under the excitation of vertical vibration loads caused by train operation, the present invention dissipates vibration energy through the reciprocating compression deformation of the rubber layer, thereby reducing the transmission of the train vibration load to the upper structure. Under the action of lateral loads caused by earthquakes, the upper thick rubber layer is limited by the displacement of the anti-lateral displacement baffle and will not shear deform. Only the reciprocating shear deformation of the lower thin rubber layer will dissipate energy, thereby reducing the seismic response of the upper structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the novel three-dimensional seismic isolation support structure in the embodiment of the present utility model.

[0020] In the figure: 1. Upper connecting plate; 2. Upper sealing plate; 3. Upper rubber layer; 4. Middle connecting plate; 5. Lower rubber layer; 6. Lower sealing plate; 7. Lower connecting plate; 8. Middle sealing plate 1; 9. Middle sealing plate 2; 10. Tensile baffle; 11. Sliding material; 12. Interlayer steel plate 1; 13. Slide; 14. Anti-lateral displacement baffle; 15. Interlayer steel plate 2. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application 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. Therefore, they should not be understood as a limitation on this application.

[0025] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0026] Example 1: This example provides a novel three-dimensional seismic isolation support structure. Figure 1 As shown, it mainly includes: an upper connecting plate 1, an upper sealing plate 2, an upper rubber layer 3, a middle sealing plate 1 8, a middle connecting plate 4, a middle sealing plate 2 9, a lower rubber layer 5, a lower sealing plate 6 and a lower connecting plate 7, which are connected in sequence from top to bottom. The top of the upper connecting plate 1 is fixedly connected to the supported structure above the support, and the bottom of the lower connecting plate 7 is fixedly connected to the support base.

[0027] The outer rings of the upper connecting plate 1, the upper sealing plate 2, the upper rubber layer 3 and the middle sealing plate 8 are covered with an anti-lateral displacement baffle 14, and the top of the anti-lateral displacement baffle 14 is higher than the upper connecting plate 1 and is bent toward the center of the upper connecting plate 1 to form a tensile baffle 10.

[0028] Furthermore, a sliding groove 13 adapted to the upper connecting plate 1 and the upper sealing plate 2 is vertically opened on the inner wall of the anti-lateral displacement baffle 14. When the upper rubber layer 3 is subjected to a vertical load, it drives the upper connecting plate 1 and the upper sealing plate 2 to move up and down along the sliding groove 13.

[0029] Furthermore, a lubricating material 11 is filled between the outer rings of the upper connecting plate 1 and the upper sealing plate 2 and the sliding groove 13 .

[0030] Furthermore, the thickness of each rubber layer in the upper rubber layer 3 is greater than the thickness of each rubber layer in the lower rubber layer 5 .

[0031] Furthermore, an interlayer steel plate 12 is provided between each layer of rubber in the upper rubber layer 3 .

[0032] Furthermore, an interlayer steel plate 15 is provided between each layer of rubber in the lower rubber layer 5 .

[0033] Furthermore, the bottom of the anti-lateral displacement baffle 14 is connected to the upper end surface of the middle connecting plate 4, and the top portion of the anti-lateral displacement baffle 14 which is higher than the upper connecting plate 1 is bent toward the center direction of the upper connecting plate 1 to form a tensile baffle 10, and a gap is reserved between the tensile baffle 10 and the upper end surface of the upper connecting plate 1.

[0034] Furthermore, the anti-lateral shift baffle 14 is specifically made of steel.

[0035] Example 2: This example provides a novel three-dimensional seismic isolation bearing structure, which can be regarded as consisting of a thick rubber layer and a thin rubber layer stacked in series, wherein an ordinary laminated rubber bearing is provided between the lower connecting plate and the middle connecting plate, and a thick rubber layer is provided between the middle connecting plate and the upper connecting plate.

[0036] In order to reduce the horizontal shear deformation of vibration isolation and prevent the support from overturning and damage, a steel anti-lateral displacement baffle is used to wrap the thick rubber layer, and the upper connecting plate and the upper sealing plate are restricted in the slide groove so that the thick rubber layer can only undergo compression deformation but not shear deformation. A tensile baffle is provided on the top of the slide groove to prevent the upper connecting plate from detaching from the slide groove when the support is under tension, and a certain gap is left between the thick rubber layer and the anti-lateral displacement baffle, providing deformation space for the thick rubber layer.

[0037] Furthermore, the thick rubber layer and the thin rubber layer are both made of high-damping rubber materials, and the upper and lower connecting plates of the support are connected to the external structure by anchor bolts.

[0038] Specific working principle:

[0039] When the upper connecting plate of the support bears the pressure transmitted from the upper structure, the upper connecting plate and the upper sealing plate slide vertically in the slide groove, and the upper connecting plate and the upper sealing plate come into contact with the anti-lateral displacement baffle, which can transmit horizontal force. When subjected to vertical compression load, the thick rubber layer and the thin rubber layer undergo compression deformation at the same time, so their vertical compression stiffness is relatively small, which can effectively reduce the natural frequency of the structure. When subjected to shear load, because the steel anti-lateral displacement baffle limits the horizontal shear deformation of the upper thick rubber layer, only the bottom thin rubber layer undergoes horizontal shear deformation. Therefore, its horizontal shear stiffness is equivalent to that of the thin rubber layer, and excessive shear deformation and overturning damage will not occur.

[0040] Under the excitation of the vertical vibration load caused by the train operation, the new vibration isolation support undergoes a slight reciprocating compression deformation to consume the vibration energy, thereby reducing the transmission of the train vibration load to the upper structure.

[0041] Under the action of seismic load, the upper thick rubber layer is restricted by the displacement of the anti-lateral displacement baffle and does not undergo shear deformation, while the bottom thin rubber layer undergoes reciprocating shear deformation and dissipates energy, thereby reducing the seismic response of the upper structure.

[0042] Furthermore, all parts of this application that are not described in detail are the same as the existing technology or are implemented using the existing technology.

[0043] In summary:

[0044] 1. The utility model provides a new three-dimensional seismic isolation bearing structure. Through the reasonable arrangement of the upper thick rubber layer, the lower thin rubber layer, the upper and lower sealing plates, the connecting plates, and the anti-lateral displacement baffles and the anti-tension baffles, the structure is compact and easy to arrange and install, and can effectively isolate the vibration caused by subway operation and earthquakes.

[0045] 2. When subjected to vertical compressive loads, the thick rubber layer and the thin rubber layer are simultaneously compressed and deformed to reduce the vertical compression stiffness, which can effectively reduce the natural frequency of the support structure; when subjected to lateral shear loads, the anti-lateral displacement baffle limits the horizontal shear deformation of the upper thick rubber layer, which can effectively prevent the entire support from overturning and damage.

[0046] 3. Under the excitation of vertical vibration loads caused by train operation, the present invention dissipates vibration energy through the reciprocating compression deformation of the rubber layer, thereby reducing the transmission of the train vibration load to the upper structure. Under the action of lateral loads caused by earthquakes, the upper thick rubber layer is limited by the displacement of the anti-lateral displacement baffle and will not shear deform. Only the reciprocating shear deformation of the lower thin rubber layer will dissipate energy, thereby reducing the seismic response of the upper structure.

[0047] The above embodiments are intended only to illustrate the design concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of protection of the present invention is not limited to the above embodiments. Therefore, any equivalent changes or modifications based on the principles and design concepts disclosed in the present invention are within the scope of protection of the present invention.

Claims

1. A new three-dimensional seismic isolation support structure, characterized by: The invention comprises an upper connecting plate (1), an upper sealing plate (2), an upper rubber layer (3), a middle sealing plate (8), a middle connecting plate (4), a middle sealing plate (9), a lower rubber layer (5), a lower sealing plate (6) and a lower connecting plate (7) which are sequentially connected from top to bottom. The top of the upper connecting plate (1) is fixedly connected to the supported structure above the support, and the bottom of the lower connecting plate (7) is fixedly connected to the support base. The outer rings of the upper connecting plate (1), the upper sealing plate (2), the upper rubber layer (3) and the middle sealing plate (8) are covered with an anti-lateral displacement baffle (14), and the portion of the top of the anti-lateral displacement baffle (14) that is higher than the upper connecting plate (1) is bent toward the center of the upper connecting plate (1) to form a tensile baffle (10).

2. The novel three-dimensional seismic isolation support structure according to claim 1 is characterized in that: A sliding groove (13) adapted to the upper connecting plate (1) and the upper sealing plate (2) is vertically provided on the inner wall of the anti-lateral displacement baffle (14); when the upper rubber layer (3) bears a vertical load, it drives the upper connecting plate (1) and the upper sealing plate (2) to move up and down along the sliding groove (13).

3. The novel three-dimensional seismic isolation support structure according to claim 2 is characterized in that: Slippery material (11) is filled between the outer rings of the upper connecting plate (1) and the upper sealing plate (2) and the sliding groove (13).

4. The novel three-dimensional seismic isolation support structure according to claim 1 is characterized in that: The thickness of each rubber layer in the upper rubber layer (3) is greater than the thickness of each rubber layer in the lower rubber layer (5).

5. The novel three-dimensional seismic isolation support structure according to claim 4 is characterized in that: An interlayer steel plate (12) is provided between each layer of rubber in the upper rubber layer (3).

6. The novel three-dimensional seismic isolation support structure according to claim 4 is characterized in that: Two interlayer steel plates (15) are provided between each layer of rubber in the lower rubber layer (5).

7. The novel three-dimensional seismic isolation support structure according to claim 1 is characterized in that: The bottom of the anti-lateral displacement baffle (14) is connected to the upper end surface of the middle connecting plate (4), and the portion of the top of the anti-lateral displacement baffle (14) that is higher than the upper connecting plate (1) is bent toward the center of the upper connecting plate (1) to form a tensile baffle (10), and a gap is reserved between the tensile baffle (10) and the upper end surface of the upper connecting plate (1).

8. The novel three-dimensional seismic isolation support structure according to claim 7 is characterized in that: The anti-lateral shift baffle (14) is specifically a steel anti-lateral shift baffle.

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