Friction pendulum shock insulation support with laminated rubber sliding block sealing cavity

Abstract

The utility model discloses a friction pendulum shock insulation support with a laminated rubber sliding block sealing cavity, which comprises a support plate, a concave sliding wall is arranged in the support plate, and a sliding chute is arranged at an opening of the concave sliding wall; the double-face sliding plate is arranged in the concave sliding wall, and the two ends of the double-face sliding plate are each provided with a fixed twisting turned edge; the sliding surface steel strand is fixedly mounted in the fixed twisting turned edge; the laminated rubber sliding block is arranged between the upper double-face sliding plate and the lower double-face sliding plate, arc-shaped sliding plates are arranged at the upper end and the lower end of the laminated rubber sliding block, and waist grooves are formed in the middle of the laminated rubber sliding block in a vertically symmetrical mode; and the lead core is embedded in the center of the laminated rubber sliding block. Effective displacement and deformation are realized; by means of the structure, interaction of the assemblies is flexible, the inertia effect transmitted to a building structure can be weakened, the support has the vertical tensile capacity, the air pressure difference exists inside and outside the support, certain stability can be provided for the support, vertical seismic oscillation can be isolated, and wide application of the support is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building structure vibration reduction and isolation, in particular to a laminated rubber slider sealing cavity friction pendulum vibration isolation support. Background Art

[0002] In recent years, the demand for building seismic performance targets has been increasing, and seismic reduction and isolation technologies will be more widely used in buildings. The friction pendulum isolation bearing is used in building structure seismic isolation, which can effectively extend the structure's self-seismic period and reduce the seismic effect of the building structure. In addition, the friction pendulum isolation bearing has low sensitivity to the seismic excitation frequency range, high stability, and strong reset ability.

[0003] When a building encounters a frequent earthquake, the safety of the structure can be effectively guaranteed by adopting effective structural seismic measures and seismic construction measures. Therefore, seismic isolation technology is mainly used in buildings that encounter rare earthquakes to prevent the building from being damaged and the building functions and equipment functions in the building from being interrupted. However, the intensity of rare earthquakes is difficult to predict, and the existing friction pendulum is more concerned with its seismic isolation performance. If the building or bridge slips out of the support, it will cause more serious damage. Therefore, the friction pendulum seismic isolation support should have effective displacement and deformation.

[0004] Secondly, most existing sliding components are rigid. When components collide with each other, they will transmit a large inertial effect to the building structure. At the same time, the components may also be damaged by the impact. The traditional friction pendulum bearing achieves the seismic isolation function through friction energy consumption. And because the traditional friction pendulum bearing is composed of a concave disk and an intermediate bearing stacked together, it cannot provide vertical tension and its mechanical properties are unstable. When horizontal displacement occurs, it is easy to overturn, causing the friction pendulum bearing to fail and fail to achieve the seismic isolation effect, which can easily cause huge losses to the bearing and the seismic isolation structure. At the same time, the traditional friction pendulum bearing cannot isolate vertical seismic motion, which limits the widespread application of friction pendulum bearings. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a laminated rubber slider sealed friction pendulum seismic isolation bearing with effective displacement and deformation, so that the interaction between the components is flexible, which can weaken the inertial effect transmitted to the building structure and make the bearing have vertical tensile resistance. There is an air pressure difference inside and outside the bearing, which can provide a certain stability to the bearing, can isolate vertical seismic motion, and is conducive to the wide application of the bearing.

[0006] According to the technical solution provided by the embodiment of the utility model, a laminated rubber slider sealed cavity friction pendulum seismic isolation bearing includes a bearing plate, a concave sliding wall is opened inside the bearing plate, and a sliding groove is provided at the opening of the concave sliding wall; the bearing plate is a cubic structure, and the upper and lower bearing plates are parallel to each other, a double-sided slide plate, and the double-sided slide plate is arranged inside the concave sliding wall, and both ends of the double-sided slide plate are provided with a solid twisted edge; the double-sided slide plate fits the concave sliding wall, and the solid twisted edge and the double-sided slide plate are an integrally formed structure, a sliding surface steel strand, and the sliding surface steel strand is fixedly installed inside the solid twisted edge; the sliding surface steel strand passes through the solid twisted edge, a laminated rubber slider, and the laminated rubber slider is arranged Between the upper and lower double-sided slides, arc-shaped slides are provided at the upper and lower ends of the laminated rubber slide, and waist grooves are symmetrically provided in the middle of the laminated rubber slide; the surface of the concave sliding wall, the surface of the sliding groove, the surface of the double-sided slide and the surface of the arc-shaped slide are all coated with polytetrafluoroethylene coating, and the sliding surface steel strand is embedded in the waist groove, the arc-shaped slide is in contact with the double-sided slide, and the arc-shaped slide and the laminated rubber slide are an integrally formed structure, a lead core, and the lead core is embedded in the center of the laminated rubber slide; a laminated cavity wall, the laminated cavity wall is adhered between the upper and lower support plates, the laminated cavity wall and the upper and lower support plates form a support inner cavity, and an air hole is opened in the middle of the laminated cavity wall.

[0007] In summary, the beneficial effects of the utility model are:

[0008] 1. Install this product in the seismic isolation layer of the building structure. When an earthquake occurs, the laminated rubber slider and the upper and lower double-sided slide plates are in a static vertical relationship and will deform. The laminated rubber slider acts on the upper and lower double-sided slide plates and the sliding steel strands respectively. The upper and lower double-sided slide plates are not deformed in a coordinated manner and thus restrict each other. They slide in the concave sliding walls of the upper and lower bearing plates respectively, with effective displacement and deformation. When horizontal displacement occurs, it is not easy to overturn, which can achieve seismic isolation effect and will not cause huge losses to the bearings and seismic isolation layers.

[0009] 2. Since the laminated rubber slider, sliding steel strand and laminated cavity wall are all flexible components, the components interact with each other flexibly, which can absorb and consume energy during the interaction process, and can weaken the inertia effect transmitted to the building structure. At the same time, the components are not easily damaged by impact;

[0010] 3. The upper and lower support plates are bonded together by vulcanization of the laminated cavity wall to form a closed support cavity. Inlet and outlet air holes are reserved in the middle of the laminated cavity wall. During the deformation process of the support, the inner cavity of the support is deformed, and the volume of the inner cavity changes, which requires air to be inhaled and exhausted, and energy consumption occurs in the process. The upper and lower support plates are bonded together by vulcanization of the laminated cavity wall, so that the support has vertical tensile resistance. During the deformation process of the support plate, the volume of the inner cavity of the support changes, and air cannot enter the inner cavity of the support in time, thereby forming an air pressure difference inside and outside the support, which can provide a certain stability to the support, can isolate vertical ground vibrations, and is conducive to the wide application of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0013] Figure 2 For the utility model Figure 1 Schematic diagram of the cross-sectional structure in direction A;

[0014] Figure 3 It is a schematic diagram of the external structure of the utility model;

[0015] Figure 4 This is a schematic cross-sectional structure diagram of Example 2 of the present utility model.

[0016] Numbers in the figure: 1, support plate; 2, double-sided slide plate; 3, laminated rubber slide block; 4, laminated cavity wall; 5, support cavity; 1-1, concave sliding wall; 1-2, sliding groove; 2-1, solid stranded edge; 2-2, sliding surface steel strand; 3-1, waist groove; 3-2, lead core; 3-3, arc-shaped slide plate; 4-1, air hole. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Example 1, please refer to Figure 1 , Figure 2 and Figure 3A laminated rubber slider sealed cavity friction pendulum seismic isolation bearing, comprising a bearing plate 1, wherein the bearing plate 1 is provided with a concave sliding wall 1-1, and a sliding groove 1-2 is provided at the opening of the concave sliding wall 1-1; a double-sided sliding plate 2, wherein the double-sided sliding plate 2 is arranged inside the concave sliding wall 1-1, and both ends of the double-sided sliding plate 2 are provided with a solid twisted edge 2-1; a sliding surface steel strand 2-2, wherein the sliding surface steel strand 2-2 is fixedly installed inside the solid twisted edge 2-1; a laminated rubber slider 3, wherein the laminated rubber slider 3 is arranged between the upper and lower double-sided sliding plates 2, and the upper and lower ends of the laminated rubber slider 3 are provided with an arc sliding plate 3 -3, a waist groove 3-1 is symmetrically arranged in the middle of the laminated rubber slider 3; a lead core 3-2, the lead core 3-2 is embedded in the center of the laminated rubber slider 3, the lead core 3-2 is an elastic-plastic material, has obvious bilinearity, and has a strong yield energy dissipation capacity; a laminated cavity wall 4, the laminated cavity wall 4 is adhered between the upper and lower support plates 1, and the above-mentioned adhesion method is through vulcanization adhesion, which can make the laminated cavity wall 4 and the surface of the support plate 1 form a close connection, thereby achieving an excellent adhesion effect, the laminated cavity wall 4 and the upper and lower support plates 1 form a support inner cavity 5, and the middle of the laminated cavity wall 4 is provided with an air hole 4-1.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the support plate 1 is a cubic structure, and the upper and lower support plates 1 are parallel to each other. The surface of the concave sliding wall 1-1, the surface of the sliding groove 1-2, the surface of the double-sided sliding plate 2 and the surface of the curved sliding plate 3-3 are all coated with polytetrafluoroethylene coating, which is a high molecular polymer obtained by polymerization of tetrafluoroethylene as a monomer, which can reduce friction and wear.

[0021] like Figure 1 and Figure 2 As shown, the arc-shaped slide plate 3-3 contacts the double-sided slide plate 2, and the arc-shaped slide plate 3-3 and the laminated rubber slide plate 3 are an integrally formed structure. The double-sided slide plate 2 fits with the concave sliding wall 1-1, and the twisted edge 2-1 and the double-sided slide plate 2 are an integrally formed structure.

[0022] like Figure 1 and Figure 2 As shown, the sliding surface steel strand 2-2 passes through the fixed stranded edge 2-1, and the sliding surface steel strand 2-2 is embedded in the waist groove 3-1. During the deformation process, the laminated rubber slider 3 can slide along the sliding surface steel strand 2-2 in the double-sided skateboard 2, and at the same time, the laminated rubber slider 3 respectively acts on the double-sided skateboard 2 to slide in the concave sliding wall 1-1 of the upper and lower support plates 1.

[0023] When in use: the laminated rubber slider 3 is an elastic slider, which can reduce the impact of the slider and other components. When the deformation value occurs, the laminated rubber slider 3 interacts with the sliding surface steel strands 2-2 of the upper and lower double-sided sliders 2, and the upper and lower double-sided sliders 2 are deformed uncoordinatedly and thus constrained from each other, and slide in the concave sliding walls 1-1 of the upper and lower support plates 1 respectively; the lead core 3-2 embedded in the center of the laminated rubber slider 3 can be replaced by other materials such as tin; during the deformation process of the support plate 1, the support cavity 5 is deformed, and the change in the volume of the cavity requires air to be sucked in and exhausted through the pores 4-1, thereby consuming energy in the process; the laminated cavity wall 4 is adhered between the upper and lower support plates 1, which can provide effective vertical pressure for the support plate 1; and during the deformation process of the support plate 1, the volume of the support cavity 5 changes, and the air cannot enter the cavity in time, thereby forming an air pressure difference between the inside and outside of the support plate 1, which can provide the support plate 1 with a certain stability.

[0024] Example 2, please refer to Figure 1 , Figure 3 and Figure 4 A laminated rubber slider sealed cavity friction pendulum seismic isolation bearing, comprising a bearing plate 1, wherein the bearing plate 1 is provided with a concave sliding wall 1-1, and a sliding groove 1-2 is provided at the opening of the concave sliding wall 1-1; a double-sided sliding plate 2, wherein the double-sided sliding plate 2 is arranged inside the concave sliding wall 1-1, and both ends of the double-sided sliding plate 2 are provided with a solid twisted edge 2-1; a sliding surface steel strand 2-2, wherein the sliding surface steel strand 2-2 is fixedly installed inside the solid twisted edge 2-1; a laminated rubber slider 3, wherein the laminated rubber slider 3 is arranged at the upper and lower Between the double-sided skateboards 2, the upper and lower ends of the laminated rubber slider 3 are both provided with arc-shaped skateboards 3-3, and the middle part of the laminated rubber slider 3 is symmetrically provided with waist grooves 3-1; a laminated cavity wall 4, the laminated cavity wall 4 is adhered between the upper and lower support plates 1, and the above-mentioned adhesion method is through vulcanization adhesion, which can make the laminated cavity wall 4 and the surface of the support plate 1 form a close connection, thereby achieving an excellent adhesion effect, the laminated cavity wall 4 and the upper and lower support plates 1 form a support inner cavity 5, and the middle part of the laminated cavity wall 4 is provided with an air hole 4-1.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, the support plate 1 is a cubic structure, and the upper and lower support plates 1 are parallel to each other. The surface of the concave sliding wall 1-1, the surface of the sliding groove 1-2, the surface of the double-sided sliding plate 2 and the surface of the curved sliding plate 3-3 are all coated with polytetrafluoroethylene coating, which is a high molecular polymer obtained by polymerization of tetrafluoroethylene as a monomer, which can reduce friction and wear.

[0026] like Figure 1 and Figure 4As shown, the arc-shaped slide plate 3-3 contacts the double-sided slide plate 2, and the arc-shaped slide plate 3-3 and the laminated rubber slide plate 3 are an integrally formed structure. The double-sided slide plate 2 fits with the concave sliding wall 1-1, and the twisted edge 2-1 and the double-sided slide plate 2 are an integrally formed structure.

[0027] like Figure 1 and Figure 4 As shown, the sliding surface steel strand 2-2 passes through the fixed stranded edge 2-1, and the sliding surface steel strand 2-2 is embedded in the waist groove 3-1. During the deformation process, the laminated rubber slider 3 can slide along the sliding surface steel strand 2-2 in the double-sided skateboard 2, and at the same time, the laminated rubber slider 3 respectively acts on the double-sided skateboard 2 to slide in the concave sliding wall 1-1 of the upper and lower support plates 1.

[0028] When in use: the laminated rubber slider 3 is an elastic slider, which can reduce the impact of the slider and other components. When the deformation value occurs, the laminated rubber slider 3 interacts with the sliding surface steel strands 2-2 of the upper and lower double-sided sliders 2, and the upper and lower double-sided sliders 2 are deformed uncoordinatedly and thus constrained from each other, and slide in the concave sliding walls 1-1 of the upper and lower support plates 1 respectively; there is no lead core 3-2 embedded in the center of the laminated rubber slider 3, which is a pure laminated rubber slider 3; during the deformation of the support plate 1, the support cavity 5 is deformed, and the change in the volume of the cavity requires air to be sucked in and exhausted through the pores 4-1, thereby consuming energy in the process; the laminated cavity wall 4 is adhered between the upper and lower support plates 1, which can provide effective vertical pressure for the support plate 1; and during the deformation of the support plate 1, the volume of the support cavity 5 changes, and the air cannot enter the cavity in time, thereby forming an air pressure difference between the inside and outside of the support plate 1, which can provide the support plate 1 with a certain stability.

[0029] The above description is only an explanation of the preferred embodiments of the utility model and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the utility model is not limited to the technical scheme formed by the specific combination of the above technical features, but also should cover other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the utility model (but not limited to) to form a technical scheme.

Claims

1. A laminated rubber slider sealed cavity friction pendulum seismic isolation support, characterized by: It comprises a support plate (1), wherein a concave sliding wall (1-1) is provided inside the support plate (1), and a sliding groove (1-2) is provided at the opening of the concave sliding wall (1-1); A double-sided slide plate (2), the double-sided slide plate (2) being arranged inside the concave slide wall (1-1), and both ends of the double-sided slide plate (2) being provided with twisted curling edges (2-1); A slippery surface steel strand (2-2), wherein the slippery surface steel strand (2-2) is fixedly installed inside the fixed strand curling edge (2-1); A laminated rubber slider (3), the laminated rubber slider (3) being arranged between the upper and lower double-sided sliders (2), the upper and lower ends of the laminated rubber slider (3) being provided with arc-shaped sliders (3-3), and the middle part of the laminated rubber slider (3) being symmetrically provided with waist grooves (3-1); A lead core (3-2), wherein the lead core (3-2) is embedded in the center of the laminated rubber slider (3); A laminated cavity wall (4) is adhered between the upper and lower support plates (1), the laminated cavity wall (4) and the upper and lower support plates (1) form a support inner cavity (5), and an air hole (4-1) is opened in the middle of the laminated cavity wall (4).

2. The laminated rubber slider sealed cavity friction pendulum seismic isolation support according to claim 1 is characterized by: The support plate (1) is a cubic structure, and the upper and lower support plates (1) are parallel to each other.

3. The laminated rubber slider sealed cavity friction pendulum seismic isolation support according to claim 1 is characterized by: The surface of the concave sliding wall (1-1), the surface of the sliding groove (1-2), the surface of the double-sided sliding plate (2) and the surface of the arc-shaped sliding plate (3-3) are all coated with a polytetrafluoroethylene coating.

4. The laminated rubber slider sealed cavity friction pendulum seismic isolation support according to claim 1 is characterized by: The arc-shaped slide plate (3-3) is in contact with the double-sided slide plate (2), and the arc-shaped slide plate (3-3) and the laminated rubber slide block (3) are an integrally formed structure.

5. The laminated rubber slider sealed cavity friction pendulum seismic isolation support according to claim 1 is characterized by: The double-sided slide plate (2) is matched with the concave slide wall (1-1), and the twisted curling edge (2-1) and the double-sided slide plate (2) are an integrally formed structure.

6. The laminated rubber slider sealed cavity friction pendulum seismic isolation support according to claim 1 is characterized by: The slip surface steel strand (2-2) passes through the fixed strand curling edge (2-1), and the slip surface steel strand (2-2) is embedded in the waist groove (3-1).

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