CN218622733U - Parallel three-dimensional friction pendulum shock insulation support - Google Patents

Abstract

The utility model discloses a three-dimensional friction pendulum isolation bearing of parallelly connected type, including last bedplate, the spherical crown body and lower bedplate, spherical crown body slidable mounting is between last bedplate and lower bedplate, and the spherical crown body and last bedplate, all fix on the glide plane of spherical crown body and lower bedplate contact and be provided with the polytetrafluoroethylene board, the spherical crown body is including the last picture peg and the lower picture peg of slip lock, go up picture peg and lower picture peg slip lock and merge in the two inside bradyseism chamber that forms, bradyseism intracavity top-down has set gradually a plurality of combination dish springs to folding together, combination dish spring and bradyseism intracavity wall sliding fit, be provided with columnar structure's power consumption damping material in the centre bore of combination dish spring, and power consumption damping material top bottom both ends are supported respectively and are leaned on last picture peg and lower picture peg. The utility model discloses simple structure through the optimal design to the spherical crown body, makes it have three-dimensional shock insulation effect, and the support size is littleer simultaneously, changes in engineering application, to the less vibration of a little width of cloth of vertical deformation, and its power consumption effect is better.

Description

Parallel three-dimensional friction pendulum vibration isolation support

Technical Field

The utility model relates to a building isolation bearing technical field, concretely relates to three-dimensional friction pendulum isolation bearing of parallelly connected type.

Background

The traditional friction pendulum vibration isolation support is mainly used for horizontal vibration isolation, has higher rigidity in a vertical direction than a horizontal direction, and cannot isolate vertical vibration/vibration. The influence of vertical earthquake on the structure is considered for buildings and large-span space structures (the vertical response of the structure is obvious) in a near fault area (the vertical earthquake motion is obvious); for the building structures near the subway upper cover and the subway, the vibration problem generated to the building in the operation process of the subway seriously influences the living comfort of people, so that the research of a three-dimensional shock insulation support is necessary to be further developed, and the vertical shock/vibration of the structure can be reduced while the horizontal shock insulation effect is ensured. At present, the existing three-dimensional shock isolation device realizes three-dimensional shock isolation through series connection of a vertical spring shock isolation system and a horizontal rubber shock isolation support or a friction pendulum shock isolation system, so that the size of the support is relatively large, and the use of the support in engineering is limited. Meanwhile, in the conventional compact three-dimensional shock isolation support, a plurality of disc spring groups or spiral spring groups are arranged in the friction pendulum support, vertical energy consumption is carried out through the vertically arranged friction type dampers, the energy consumption effect depends on the vertical deformation of the support, the vertical deformation of the support is generally relatively small (within 5 mm) for the vertical shock/vibration problem caused by vertical seismic oscillation or subway operation, and the energy consumption capacity of the friction type dampers to the vertical shock/vibration with small deformation is relatively limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a three-dimensional friction pendulum isolation bearing of parallelly connected type to solve in the background art technical problem.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a three-dimensional friction pendulum isolation bearing of parallelly connected type, includes the bedplate, the spherical crown body and lower bedplate, spherical crown body slidable mounting is between last bedplate and lower bedplate, and all fixes being provided with the polytetrafluoroethylene board on the sliding surface that the spherical crown body contacted with last bedplate, the spherical crown body and lower bedplate, and the spherical crown body is including the last picture peg and the lower picture peg of slip lock, go up picture peg and lower picture peg slip lock and in the inside bradyseism chamber that forms of the two, top-down has set gradually a plurality of pairs of combination dish springs together of folding in the bradyseism intracavity, combination dish spring and bradyseism intracavity wall sliding fit are provided with columnar structure's power consumption damping material in the centre bore of combination dish spring, and power consumption damping material top bottom both ends are supported respectively and are leaned on last picture peg and lower picture peg.

Preferably, in order to improve the stability of the arrangement position of the energy dissipation damping material, an embedding groove is formed in the abutting position of the upper inserting plate and the energy dissipation damping material, and the top of the energy dissipation damping material is embedded in the embedding groove.

Preferably, the length of the overlapped part of the upper inserting plate and the lower inserting plate is not less than the maximum vertical stroke of the upper inserting plate, so that the upper inserting plate is prevented from slipping off the lower inserting plate.

Preferably, the energy-consuming damping material is a polyurethane material or a high-damping rubber material.

Preferably, in order to prevent the energy-consuming damping material and the combined disc spring from interfering with each other, the energy-consuming damping material and the combined disc spring are in clearance fit.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, through the optimal design to traditional friction pendulum isolation bearing spherical crown body, with overall structure's spherical crown body split for sliding fit's upper and lower two parts and at the two inside combination dish spring and energy dissipation damping material of having set up, make it have three-dimensional shock insulation effect, and simultaneously, compared with the prior art, its support size is littleer, change in engineering application, and, parallelly connected combination dish spring and the energy dissipation damping material that sets up can lead to the friction between the dish reed and the friction between the internal part molecule of energy dissipation damping material respectively dissipates input energy, to the less micro-amplitude vibration of vertical deformation, its energy dissipation effect is better.

Drawings

The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:

fig. 1 is a schematic view of the cross-sectional structure of the present invention along the vertical direction;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention along the horizontal direction;

fig. 3 is a schematic view of a vertical cross-sectional structure of the spherical cap body of the present invention;

fig. 4 is a schematic cross-sectional structure view of the upper plug board of the present invention along the vertical direction;

fig. 5 is a schematic view of a cross-sectional structure of the lower insert plate along the vertical direction according to the present invention.

Reference numerals: 1-upper seat plate, 2-polytetrafluoroethylene plate, 3-spherical crown body, 31-upper insertion plate, 32-lower insertion plate, 33-shock absorption cavity, 34-combined disc spring, 35-embedded groove, 36-energy dissipation damping material, 4-lower seat plate and 5-ear plate.

Detailed Description

Hereinafter, embodiments of a parallel type three-dimensional friction pendulum seismic isolation bearing according to the present invention will be described with reference to the accompanying drawings. The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus should not be construed as limiting the present invention.

The drawings attached to the present specification are schematic views for assisting the explanation of the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It is noted that the drawings are not necessarily to the same scale, emphasis instead being placed upon clearly illustrating the structure of various elements of embodiments of the present invention. Like reference numerals are used to denote like parts.

The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention. The preferred embodiments of the present invention will be described in further detail below with reference to fig. 1-5:

as shown in figures 1-2, the preferred parallel three-dimensional friction pendulum vibration isolation bearing of the present invention, based on the design of the traditional friction pendulum vibration isolation bearing, comprises an upper seat plate 1, a spherical crown body 3 and a lower seat plate 4, wherein the upper seat plate 1 and the lower seat plate 4 are both made of cast iron material, and a layer of stainless steel plate with thickness of 2mm is disposed on the sliding surface of one side of the upper seat plate 1 and the lower seat plate 4, the spherical crown body 3 is slidably mounted between the upper seat plate 1 and the lower seat plate 4, and a polytetrafluoroethylene plate 2 is fixedly disposed on the sliding surface of the spherical crown body 3 contacting with the upper seat plate 1 and the spherical crown body 3 contacting with the lower seat plate 4, as shown in figures 3-5, the spherical crown body 3 comprises an upper insert plate 31 and a lower insert plate 32 which are slidably fastened, the upper insert plate 31 and the lower insert plate 32 are slidably fastened and form a vibration damping cavity 33 inside the two, and the length of the superposition position of the upper inserting plate 31 and the lower inserting plate 32 is not less than the maximum vertical stroke of the upper inserting plate 31 (preferably 2 times of the maximum stroke in actual setting), a plurality of pairs of combined disc springs 34 which are superposed together are sequentially arranged in the cushioning cavity 33 from top to bottom, the combined disc springs 34 and the inner wall of the cushioning cavity 33 are in sliding fit, energy dissipation damping materials 36 of a columnar structure are arranged in the central hole of the combined disc springs 34, the energy dissipation damping materials 36 and the combined disc springs 34 are in clearance fit, the energy dissipation damping materials 36 are made of polyurethane materials or high-damping rubber materials, the two ends of the top and the bottom of the combined disc springs are respectively abutted against the upper inserting plate 31 and the lower inserting plate 32, in order to prevent the position of the energy dissipation damping materials 36 from being dislocated, the abutting positions of the upper inserting plate 31 and the energy dissipation damping materials 36 are provided with the fixing grooves 35, and the tops of the energy dissipation damping materials 36 are fixedly embedded in the fixing grooves 35.

The utility model discloses a concrete construction process as follows:

firstly, clamping energy-consuming damping materials 36 in the embedding grooves 35 of the upper insertion plate 31, and placing a proper number of combined disc springs 34 (the specific number is determined according to design calculation) in the cavities of the upper insertion plate 31 at the periphery of the energy-consuming damping materials 36;

step two, inserting the upper inserting plate 31 of the spherical crown body 3 on the lower inserting plate 32, and mutually meshing the upper inserting plate and the lower inserting plate;

placing the combined spherical crown body 3 between the upper seat plate 1 and the lower seat plate 4, and fixing the upper seat plate 1 and the lower seat plate 4 through a temporary connecting piece;

fourthly, connecting the lug plates 5 on the upper seat plate 1 and the lower seat plate 4 with corresponding embedded parts through bolts to complete the installation of the three-dimensional friction pendulum vibration isolation support;

and fifthly, removing the temporary connecting piece after the main body structure is installed.

The utility model discloses a theory of operation is: under the normal use state, the combined disc spring 34 is vertically deformed, the high-damping rubber or polyurethane material is in a vertical compression state, when vertical vibration (vibration) input is arranged at the bottom of the support, the combined disc spring 34 slightly vibrates up and down at a balance position, the high-damping rubber or polyurethane material dissipates energy through intermolecular friction, namely, kinetic energy of the vertical vibration (vibration) is converted into heat energy and dissipated into the air, and the energy input into an upper structure can be effectively reduced. Under the horizontal earthquake effect, the mutual interlock of picture peg 31 and lower picture peg 32 on the spherical crown body 3 provides great horizontal rigidity for spherical crown body 3, ensures that the horizontal deformation of support mainly concentrates on the relative slip deformation of the polytetrafluoroethylene board 2 of upper and lower sliding surface and corrosion resistant plate, and combination dish spring 34 mainly used vertically bears, and power consumption damping material 36 mainly used support vertical shake/vibration power consumption, promptly the utility model discloses realized the shock insulation effect to vertical shake (vibration) when having kept traditional horizontal friction pendulum isolation bearing's shock insulation function, especially to the less slight vibration of vertical deformation, its power consumption effect is better.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. The utility model provides a three-dimensional friction pendulum isolation bearing of parallelly connected type which characterized in that: including last bedplate (1), the spherical crown body (3) and bedplate (4) down, spherical crown body (3) slidable mounting is all fixed on the glide plane that last bedplate (1) and bedplate (4) down contacted at last bedplate (3), the spherical crown body (3) and last bedplate (1), the spherical crown body (3) and bedplate (4) down are provided with polytetrafluoroethylene board (2), and the spherical crown body (3) is including last picture peg (31) and lower picture peg (32) of slip lock, go up picture peg (31) and picture peg (32) slip lock merge in the two inside bradyseism chamber (33) that forms, top-down has set gradually a plurality of pairs of combination dish spring (34) that are in the same place in bradyseism chamber (33), combination dish spring (34) and bradyseism chamber (33) inner wall sliding fit are provided with columnar structure's power consumption damping material (36) in the centre bore of combination dish spring (34), and power consumption damping material (36) top bottom both ends support respectively and lean on last picture peg (31) and lower picture peg (32).

2. The parallel three-dimensional friction pendulum seismic isolation bearing according to claim 1, characterized in that: an embedding groove (35) is formed in the abutting position of the upper inserting plate (31) and the energy dissipation damping material (36), and the top of the energy dissipation damping material (36) is embedded in the embedding groove (35).

3. The parallel three-dimensional friction pendulum seismic isolation bearing according to claim 1, wherein: the length of the overlapped part of the upper inserting plate (31) and the lower inserting plate (32) is not less than the maximum vertical stroke of the upper inserting plate (31).

4. The parallel three-dimensional friction pendulum seismic isolation bearing according to claim 1, wherein: the energy dissipation damping material (36) is a polyurethane material or a high damping rubber material.

5. The parallel three-dimensional friction pendulum seismic isolation bearing according to claim 1, wherein: the energy dissipation damping material (36) is in clearance fit with the combined disc spring (34).

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