Sandwich rubber shock insulation support

Abstract

The utility model provides a sandwich rubber shock insulation support. The sandwich rubber shock insulation support comprises a cover plate, a flexible steel sheet, an engineering plastic plate and a rubber filler, the two layers of cover plates are arranged in parallel; the multiple layers of flexible steel sheets are arranged between the two cover plates in parallel; the flexible steel sheet is arranged in a wavy up-and-down bending manner in the length direction; an engineering plastic plate is arranged between every two adjacent layers of flexible steel sheets; and a rubber filler is filled in a bent gap of the flexible steel sheet. In the utility model, the wavy flexible steel sheet is compressed after bearing horizontal force, the rubber filler and the flexible steel sheet are jointly stressed to generate compression, and the flexible steel sheet is connected with the upper and lower layers of engineering plastic plates after being vulcanized, so that the vertical rigidity is increased while horizontal deformation is ensured, and the problems that the natural rubber shock insulation support adopts steel plate connection, the steel consumption of the natural rubber shock insulation support is large, and the service life of the natural rubber shock insulation support is long are solved. In order to solve the problem of low vertical bearing capacity due to the fact that an engineering plastic plate is adopted to replace a steel plate for connection, the shock insulation support can save steel, reduce the mass of the steel plate layer, reduce manufacturing cost and reduce the mass of the support.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic isolation, in particular to a sandwich rubber seismic isolation bearing. Background Art

[0002] The laminated rubber seismic isolation bearing is made of a layer of steel plate and a layer of rubber stacked and vulcanized. The upper and lower cover plates are cast into one with the structure with bolts and steel bars left on the cover plates as the connection components between the bearing and the structure. The steel plate provides vertical stiffness to withstand vertical pressure, and the rubber undergoes shear deformation during an earthquake to absorb the seismic effect.

[0003] However, the high density of steel plates and rubber makes the laminated rubber seismic isolation bearing heavy and inconvenient to construct. The steel plate layer is thick and used in large quantities, which leads to high cost of the seismic isolation bearing and high requirements on construction technology.

[0004] At present, some scholars have proposed to use engineering plastic plates instead of steel plates. This approach can reduce the mass of seismic isolation pads and facilitate construction. However, due to the insufficient strength of engineering plastic plates, the problem of insufficient vertical bearing capacity of the supports is prominent. Utility Model Content

[0005] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is that the existing laminated rubber seismic isolation bearing has a high cost due to the thick steel plate and large amount of steel plate used.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solution: a sandwich rubber seismic isolation bearing, comprising:

[0007] Cover plates, wherein two layers of the cover plates are arranged parallel to each other;

[0008] Flexible steel sheets, wherein multiple layers of the flexible steel sheets are arranged parallel to each other between the two cover plates; and the flexible steel sheets are bent up and down in a wave shape in the length direction;

[0009] An engineering plastic plate is provided between two adjacent layers of the flexible steel sheets; and

[0010] Rubber filler: the gap between the bent flexible steel sheets is filled with rubber filler.

[0011] In the utility model, the wavy flexible steel sheet is compressed after being subjected to horizontal force, the rubber filler and the flexible steel sheet are compressed together, and the flexible steel sheet is connected to the upper and lower engineering plastic plates after vulcanization, thereby ensuring horizontal deformation while increasing vertical stiffness, solving the problems of using steel plates for connection in natural rubber bearings, large amount of steel used in natural rubber seismic isolation bearings, and low vertical bearing capacity when using engineering plastic plates instead of steel plates for connection. The seismic isolation bearing can save steel, reduce the mass of the steel plate layer, reduce the cost, and lighten the mass of the bearing.

[0012] Preferably, the flexible steel sheet is bent left and right in a wave shape in the width direction, so as to further ensure horizontal deformation while increasing vertical rigidity.

[0013] Preferably, it also includes a rubber sleeve, which is arranged on the outside of the flexible steel sheet, the engineering plastic sheet and the rubber filler between the two cover plates. The flexible steel sheet, the engineering plastic sheet and the rubber filler are protected by the rubber sleeve.

[0014] Preferably, the two opposite ends of the rubber sleeve are respectively provided with mounting parts folded outwards, and the mounting parts are fixedly mounted on the adjacent cover plates by bolts. The rubber sleeve is installed and fixed by the mounting parts.

[0015] Preferably, it also includes a flame retardant layer, which is sleeved on the outside of the flexible steel sheet, the engineering plastic plate and the rubber filler between the two cover plates. The flame retardant layer protects the rubber sleeve and the internal engineering plastic plate and rubber filler.

[0016] Preferably, flame retardant layers are installed on both inner and outer sides of the rubber sleeve.

[0017] Compared with the prior art, the utility model has at least the following advantages:

[0018] 1. In the utility model, the wavy flexible steel sheet is compressed after being subjected to horizontal force, the rubber filler and the flexible steel sheet are compressed together, and the flexible steel sheet is connected to the upper and lower engineering plastic plates after vulcanization, thereby ensuring horizontal deformation while increasing vertical stiffness. This solves the problems of using steel plates for connection in natural rubber bearings, large amount of steel used in natural rubber seismic isolation bearings, and low vertical bearing capacity when using engineering plastic plates instead of steel plates for connection. The seismic isolation bearing can save steel, reduce the mass of the steel plate layer, reduce the cost, and lighten the mass of the bearing.

[0019] 2. In the utility model, the rubber sleeve and the flame retardant layer are sleeved on the outside of the flexible steel sheet, the engineering plastic plate and the rubber filler, so that the flexible steel sheet, the engineering plastic plate and the rubber filler can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 The present invention is a schematic structural diagram of a sandwich rubber seismic isolation bearing provided in an embodiment of the present invention.

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3This is a schematic diagram of the structure of the flexible steel sheet provided in the embodiment of the utility model.

[0024] Figure numerals: 1-cover plate, 2-flexible steel sheet, 3-engineering plastic plate, 4-rubber filler, 5-rubber sleeve, 6-installation part, 7-flame retardant layer. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] In the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-Figure 3 The utility model provides an embodiment: a sandwich rubber seismic isolation bearing, characterized in that it includes: a cover plate 1, a flexible steel sheet 2, an engineering plastic plate 3 and a rubber filler 4; two layers of cover plates 1 are arranged parallel to each other; multiple layers of flexible steel sheets 2 are arranged parallel to each other between the two cover plates 1; and the flexible steel sheet 2 is arranged to bend up and down in a wave shape in the length direction; further, the flexible steel sheet 2 is arranged to bend left and right in a wave shape in the width direction. Thereby, the horizontal deformation can be further ensured while the vertical stiffness is increased; an engineering plastic plate 3 is arranged between two adjacent layers of flexible steel sheets 2; and the gap between the bent flexible steel sheets 2 is filled with a rubber filler 4.

[0029] During the specific implementation, the flexible steel sheet 2 is a thin steel sheet, which makes the flexible steel sheet 2 flexible and easy to deform; the wavy flexible steel sheet 2 is compressed after being subjected to horizontal force, and the rubber filler 4 and the flexible steel sheet 2 are compressed together. The flexible steel sheet 2 is connected with the upper and lower engineering plastic plates 3 after vulcanization, which ensures horizontal deformation while increasing vertical stiffness, solving the problems of using steel plates to connect natural rubber bearings, large amount of steel used in natural rubber seismic isolation bearings, and low vertical bearing capacity when using engineering plastic plates instead of steel plates. The seismic isolation bearing can save steel, reduce the mass of steel plate layers, reduce construction costs, and lighten the mass of the bearing.

[0030] See also Figure 1-Figure 3 In other embodiments, a rubber sleeve 5 is further included, and the rubber sleeve 5 is sleeved on the outside of the flexible steel sheet 2, the engineering plastic plate 3 and the rubber filler 4 between the two cover plates 1. The flexible steel sheet 2, the engineering plastic plate 3 and the rubber filler 4 are protected by the rubber sleeve 5. Furthermore, the opposite ends of the rubber sleeve 5 are respectively provided with outwardly folded mounting portions 6, and the mounting portions 6 are fixedly mounted on the adjacent cover plates 1 by bolts. The rubber sleeve 5 is installed and fixed by the mounting portions 6.

[0031] See also Figure 1-Figure 3 In another embodiment, a flame retardant layer 7 is further included, and the flame retardant layer 7 is sleeved on the outside of the flexible steel sheet 2, the engineering plastic plate 3 and the rubber filler 4 between the two cover plates 1. The rubber sleeve 5 and the internal engineering plastic plate 3 and rubber filler 4 are protected by the flame retardant layer 7. Furthermore, the flame retardant layer 7 is installed on both the inner and outer sides of the rubber sleeve 5.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A sandwich rubber seismic isolation bearing, characterized in that: include: Cover plates, wherein two layers of the cover plates are arranged parallel to each other; Flexible steel sheets, wherein multiple layers of the flexible steel sheets are arranged parallel to each other between the two cover plates; and the flexible steel sheets are bent up and down in a wave shape in the length direction; An engineering plastic plate is provided between two adjacent layers of the flexible steel sheets; and Rubber filler: the gap between the bent flexible steel sheets is filled with rubber filler.

2. The sandwich rubber seismic isolation bearing according to claim 1, characterized in that: The flexible steel sheet is bent left and right in a wave shape in the width direction.

3. The sandwich rubber seismic isolation bearing according to claim 1, characterized in that: It also includes a rubber sleeve, which is arranged on the outer sides of the flexible steel sheet, the engineering plastic plate and the rubber filler between the two cover plates.

4. The sandwich rubber seismic isolation bearing according to claim 3, characterized in that: The two opposite ends of the rubber sleeve are respectively provided with mounting parts folded outwards, and the mounting parts are fixedly mounted on adjacent cover plates by means of bolts.

5. The sandwich rubber seismic isolation bearing according to claim 3, characterized in that: It also comprises a flame retardant layer, which is sleeved on the outer sides of the flexible steel sheet, the engineering plastic plate and the rubber filler between the two cover plates.

6. The sandwich rubber seismic isolation bearing according to claim 5, characterized in that: Flame retardant layers are installed on both the inner and outer sides of the rubber sleeve.

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