CN116005814A - Combined limiting device for rubber vibration isolation support - Google Patents
Combined limiting device for rubber vibration isolation support Download PDFInfo
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- CN116005814A CN116005814A CN202310023252.5A CN202310023252A CN116005814A CN 116005814 A CN116005814 A CN 116005814A CN 202310023252 A CN202310023252 A CN 202310023252A CN 116005814 A CN116005814 A CN 116005814A
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Abstract
The invention provides a combined limiting device for a rubber vibration isolation support, and belongs to the technical field of limiting devices. It comprises the following steps: the steel frames are respectively positioned at two sides of the rubber vibration isolation support and are arranged on the lower structure of the rubber vibration isolation support; the rubber cushion block is arranged on the upper surface of the inner part of the steel frame; the L-shaped steel frames are respectively positioned at two sides of the rubber vibration isolation support, one end of each L-shaped steel frame is fixedly connected with the upper sealing plate of the rubber vibration isolation support, and the other end of each L-shaped steel frame extends into the steel frame; the opposite one side of steel frame and L shaped steel frame is sealed, and the displacement space is reserved with the steel frame to the other end of L shaped steel frame, and the other end of L shaped steel frame and rubber cushion contact and can follow the horizontal direction and remove. According to the invention, the vertical displacement of the rubber shock insulation support is limited by utilizing the compression resistance of the rubber cushion block, so that the tensile stress of the rubber shock insulation support is reduced, and meanwhile, the horizontal shearing deformation of the rubber shock insulation support is limited by the high-strength steel frame and the steel frame, so that the damage and the damage caused by the shearing deformation overrun of the rubber shock insulation support are prevented.
Description
Technical Field
The invention relates to the technical field of limiting devices, in particular to a combined limiting device for a rubber vibration isolation support.
Background
The rubber bearing vibration isolation technology is characterized in that a flexible layer is arranged between structural foundations or layers, good Z bearing loading force and X, Y shaft horizontal deformation capacity are provided, and the self shear deformation is used for reducing and isolating the transmission of seismic energy to an upper structure, so that the self vibration period of the structure is prolonged, and the seismic damage of structural and non-structural members is reduced. The support has simple structure, obvious effect and stable performance, and is one of the most widely used building seismic reduction and isolation technologies at present.
For the shock insulation building with larger height and width, the shock insulation building is easy to generate the overturning effect, so that the support is in a tension state, and because the tensile property of the support is poor, the tensile rigidity of the support is rapidly reduced when the tensile stress exceeds a standard design value, the rubber support is damaged, and the safety of the upper structure is endangered. In addition, under the rare earthquake action, the support is easy to have the problems of shearing deformation overrun and the like.
In order to solve the above problems, the invention patent with publication number CN105178439a in the prior art discloses a locking type tensile limiting shock insulation support, and the support is symmetrically provided with a tensile limiting mechanism to limit Z-axis tensile deformation and X, Y-axis horizontal shear deformation of the support (see the description of the invention patent publication and the description thereof, and the accompanying drawings), which has the following defects:
defect one: because this stop gear's hook-shaped locked groove welds with the steel sheet on the support, when hook-shaped locked groove atress too big deformation yield, its problem that has to dismantle the change is unfavorable for later maintenance.
Defect two: the limiting device is a lock catch type, can only limit the vertical displacement of the Z axis of the support and the horizontal unidirectional displacement of the X, Y axis, and if the horizontal displacement in the other direction is limited, the symmetrical limiting device is required to be arranged in the other direction, so that the installation procedures are more, and the construction period is longer.
Defect three: when the rubber support produces horizontal shear deformation, the pull rod and the sleeve slide relatively, and as the pull rod protrudes out of the whole plane of the support, the hidden danger of collision to other structures is easily produced on one hand, and the space of the shock insulation layer is occupied and the appearance is influenced on the other hand.
Disclosure of Invention
In view of the above, in order to realize the purpose of limiting the Z-axis displacement of the rubber shock-insulation support, the tensile stress and the compressive stress generated in the use process are reduced, meanwhile, the horizontal shear deformation of the rubber shock-insulation support is limited not to exceed a design value under the condition that the normal X, Y-axis horizontal shear deformation is not influenced, and the normal use of the rubber shock-insulation support is ensured so as to achieve the purpose of protecting the safety of an upper structure.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a modular spacing device for use on a rubber shock isolation mount, comprising:
the steel frames are respectively positioned at two sides of the rubber shock insulation support and are arranged on the lower structure of the rubber shock insulation support;
the rubber cushion block is arranged on the upper surface of the inner part of the steel frame;
the L-shaped steel frames are respectively positioned at two sides of the rubber vibration isolation support, one end of each L-shaped steel frame is fixedly connected with the upper sealing plate of the rubber vibration isolation support, and the other end of each L-shaped steel frame extends into the steel frame;
the steel frame is closed with one side opposite to the L-shaped steel frame, the other end of the L-shaped steel frame is in reserved displacement space with the steel frame, and the other end of the L-shaped steel frame is in contact with the rubber cushion block and can move along the horizontal direction.
Preferably, the front, rear, upper and opposite sides of the steel frame are closed.
Preferably, one end of the L-shaped steel frame is welded with the first connecting plate to form a whole, and the L-shaped steel frame is fixed on the upper sealing plate of the rubber shock insulation support through a first bolt.
Preferably, the steel frame is welded with the second connecting plate as a whole and is fixed to the lower structure by a second bolt.
Preferably, the rubber cushion block is bonded to the upper surface of the steel frame interior.
Compared with the prior art, the invention has the following beneficial effects:
according to the combined limiting device for the rubber shock insulation support, the vertical displacement of the rubber shock insulation support is limited by utilizing the good compression resistance of the rubber cushion block, so that the effect of reducing the Z-axis tensile stress of the rubber shock insulation support is achieved, meanwhile, the horizontal shearing deformation of the X, Y axis of the rubber shock insulation support is limited by the high-strength steel frame and the steel frame, and damage and destruction caused by the shearing deformation overrun of the support are prevented.
The combined limiting device for the rubber vibration isolation support is simple in structure, and can achieve three-way limiting only by means of unidirectional symmetrical arrangement, and the combined limiting device is composed of a steel frame, a steel frame and a rubber cushion block; the invention is convenient to install and replace, can be additionally installed on the existing shock insulation support, is convenient to detach and replace, and is convenient to maintain; the invention does not affect other structures and occupy excessive space of the vibration isolation layer, and does not restrict the X, Y axis horizontal shearing deformation of the rubber vibration isolation support when the rubber vibration isolation support normally works while restricting the Z axis tensile stress and the compressive stress of the rubber vibration isolation support, and only prevents the horizontal shearing deformation from exceeding the design deformation range.
Drawings
FIG. 1 is an installation elevation view of the present invention;
FIG. 2 is a top plan view of the installation of the present invention;
FIG. 3 is a schematic illustration of the application of Z-axis compressive stress deformation; (corresponding example 1)
FIG. 4 is a schematic illustration of the application of Z-axis tensile stress deformation; (corresponding example 1)
FIGS. 5 to 6 are schematic views showing the application of X-axis horizontal unidirectional shear deformation; (corresponding example 2)
FIGS. 7 to 8 are schematic views showing the application of Y-axis horizontal unidirectional shear deformation; (corresponding example 2)
FIG. 9 is a schematic illustration of an application of XY-axis horizontal bi-directional shear deformation; (corresponding example 3)
FIG. 10 is an assembled perspective view of the present invention;
FIG. 11 is a view showing the installation effect of the present invention;
FIG. 12 is a front view of the installation of the present invention;
FIG. 13 is a side view of the installation of the present invention;
in the figure, the upper structure is 1, the upper sealing plate is 2, the 3L-shaped steel frame is 4, the first bolt is 5, the first connecting plate is 6, the lower sealing plate is 7, the lower structure is 8, the steel frame is 9, the second bolt is 10, the second connecting plate is 11, the rubber cushion block is 12, the support upper connecting plate is 13, the support lower connecting plate is 14, and the rubber shock insulation support is provided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. Based on the embodiments herein, all other embodiments that a person of ordinary skill in the art would obtain without undue effort; all falling within the scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements 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. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 13, the present invention provides a combined limiting device for a rubber shock insulation support, comprising:
a rubber pad 11 provided on an upper surface of an inside of the steel frame 8;
the L-shaped steel frames 3 are respectively positioned at two sides of the rubber shock insulation support 14, one end of each L-shaped steel frame is fixedly connected with the upper sealing plate 2 of the rubber shock insulation support 14, and the other end of each L-shaped steel frame extends into the steel frame 8;
the steel frame 2 with the opposite one side of L shaped steel frame 3 is sealed, the other end of L shaped steel frame 3 with the displacement space is reserved to steel frame 8, the other end of L shaped steel frame 3 with rubber cushion 11 contact and can follow the horizontal direction and remove.
In the present invention, the front, rear, upper surface of the steel frame 8 and the surface facing the L-shaped steel frame 3 are closed, and the surface facing the L-shaped steel frame 3 means: for example, the left side of the steel frame 8 on the left side of the rubber shock insulation support 14 is closed, and the right side of the steel frame 8 on the right side of the rubber shock insulation support 14 is closed.
In the invention, one end of the L-shaped steel frame 3 is welded with the first connecting plate 5 into a whole, and is fixed on the upper sealing plate 2 of the rubber shock insulation support 14 through the first bolt 4.
In the present invention, the steel frame 8 is welded to the second connection plate 10 as a whole and is fixed to the lower structure 7 by the second bolts 9.
In the present invention, the rubber pad 11 is bonded to the upper surface of the inside of the steel frame 8.
In the invention, an L-shaped steel frame 3 is formed by welding an L-shaped steel frame and a connecting plate, and is fixed on an upper sealing plate 2 of a rubber shock insulation support 14 by using a first bolt 4 (high-strength bolt) for transmitting the displacement of the support 14 in the vertical and horizontal directions; the steel frame 8 is formed by welding a four-side closed steel frame and a second connecting plate 10, is fixed at the lower sealing plate 6 of the rubber shock insulation support 14 by using a second bolt 9 (high-strength bolt), and is horizontally and bidirectionally provided with a displacement space when the rubber shock insulation support 14 is in normal shearing deformation with the L-shaped steel 3 frame, so as to limit the vertical and horizontal displacement of the L-shaped steel frame 3, thereby preventing the rubber shock insulation support 14 from generating excessive tensile stress and horizontal shearing deformation exceeding a design value; the upper surface of the rubber cushion block 11 is bonded and connected with the upper surface of the inner part of the steel frame, the lower surface of the rubber cushion block 11 is only in contact with but not connected with the L-shaped steel frame 3, the rubber cushion block 11 is made of natural rubber through high-temperature vulcanization, has the same good compression resistance as the inner rubber layer of the rubber shock insulation support 14, and is used for resisting vertical displacement generated by tensile stress of the rubber shock insulation support 14. The whole combined limiting device is symmetrically arranged at two ends of the rubber shock insulation support 14.
Example 1 (as shown in FIG. 3 (Z-axis compressive stress deformation) and FIG. 4 (Z-axis tensile stress deformation)
When Z-axis tensile stress is transmitted from the upper structure 1, the rubber layer in the rubber shock insulation support 14 generates vertical deformation under the action of the tensile stress, the upper sealing plate 2 of the rubber shock insulation support 14 and the L-shaped steel frame 3 connected with the upper sealing plate are driven to generate vertical displacement relative to the lower structure 7, the rubber cushion block 11 bonded on the steel frame 8 is contacted with the L-shaped steel frame 3 and extruded, and the rubber cushion block 11 has good compression resistance to help the support resist the vertical displacement generated by the tensile stress, so that the support tensile stress is limited to exceed a design value. When additional vertical pressure is transmitted from the upper structure 1 (namely, additional pressure generated due to other factors such as earthquake under the condition of the dead weight of the original structure, the normal compression state is shown in fig. 2, the L-shaped steel frame is in contact with rubber but does not generate force), the rubber layer in the rubber shock insulation support 14 generates compression deformation, the upper sealing plate 2 of the rubber shock insulation support 14 and the L-shaped steel frame 3 connected with the upper sealing plate drive the upper sealing plate 2 to generate downward vertical displacement, and the rubber cushion block 11 bonded on the steel frame 8 is separated from the L-shaped steel frame 3.
Example 2 (X-axis horizontal unidirectional shear deformation) and 7-8 (Y-axis horizontal unidirectional shear deformation)
When the rubber vibration isolation support 14 generates unidirectional horizontal shear deformation in the horizontal direction, the upper sealing plate 2 of the rubber vibration isolation support 14 and the L-shaped steel frame 3 thereof are driven to generate horizontal unidirectional displacement, the upper connecting plate 12 and the lower connecting plate 13 of the rubber vibration isolation support 14 generate horizontal unidirectional relative displacement, when the displacement approaches the design horizontal shear deformation of the rubber vibration isolation support 14, the single side surface of the L-shaped steel frame 3 is contacted with the steel frame 8, the strength of the L-shaped steel frame 3 and the steel frame 8 is utilized to limit the further increase of the support horizontal shear deformation, and therefore the purpose of preventing the horizontal shear deformation of the rubber vibration isolation support 14 from exceeding a design value is achieved.
Example 3 (as shown in FIG. 9 (XY axis horizontal bidirectional shear deformation)
When the rubber vibration isolation support 14 generates bidirectional deformation on the X axis and the Y axis of the plane, the upper sealing plate 2 of the rubber vibration isolation support 14 and the L-shaped steel frame 3 thereof are driven to generate horizontal bidirectional displacement, the connecting plate 12 on the rubber vibration isolation support 14 and the lower connecting plate 13 generate horizontal bidirectional relative displacement, when the displacement approaches the design horizontal shearing deformation of the rubber vibration isolation support 14, the two sides of the L-shaped steel frame 3 are contacted with the steel frame 8, the strength of the L-shaped steel frame 3 and the steel frame 8 is utilized to limit the further increase of the horizontal shearing deformation of the support, and therefore the purpose of preventing the horizontal shearing deformation of the support from exceeding a design value is achieved.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes according to the technical scheme of the present invention and the improved conception thereof within the technical scope of the present disclosure; are intended to be encompassed within the scope of the present invention.
Claims (5)
1. A combination formula stop device for on rubber shock insulation support, its characterized in that includes:
the steel frames are respectively positioned at two sides of the rubber shock insulation support and are arranged on the lower structure of the rubber shock insulation support;
the rubber cushion block is arranged on the upper surface of the inner part of the steel frame;
the L-shaped steel frames are respectively positioned at two sides of the rubber vibration isolation support, one end of each L-shaped steel frame is fixedly connected with the upper sealing plate of the rubber vibration isolation support, and the other end of each L-shaped steel frame extends into the steel frame;
the steel frame is closed with one side opposite to the L-shaped steel frame, the other end of the L-shaped steel frame is in reserved displacement space with the steel frame, and the other end of the L-shaped steel frame is in contact with the rubber cushion block and can move along the horizontal direction.
2. A modular spacing device for use in a rubber vibration isolation mount according to claim 1, wherein the front, rear, upper and opposite sides of the steel frame are closed.
3. The combined limiting device for the rubber vibration isolation support according to claim 1, wherein one end of the L-shaped steel frame is welded with the first connecting plate to form a whole and is fixed on an upper sealing plate of the rubber vibration isolation support through a first bolt.
4. The modular spacing device for use in a rubber vibration isolation mount of claim 1 wherein said steel frame is welded to the second web as a unit and secured to said substructure by a second bolt.
5. A modular spacing device for use in a rubber vibration isolation mount according to any one of claims 1 to 4, wherein the rubber spacer is bonded to the upper surface of the steel frame interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023252.5A CN116005814A (en) | 2023-01-09 | 2023-01-09 | Combined limiting device for rubber vibration isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023252.5A CN116005814A (en) | 2023-01-09 | 2023-01-09 | Combined limiting device for rubber vibration isolation support |
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| Publication Number | Publication Date |
|---|---|
| CN116005814A true CN116005814A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310023252.5A Pending CN116005814A (en) | 2023-01-09 | 2023-01-09 | Combined limiting device for rubber vibration isolation support |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176851A (en) * | 2001-12-12 | 2003-06-27 | Kawaguchi Metal Industries Co Ltd | Laminated rubber support |
| CN101769015A (en) * | 2009-12-16 | 2010-07-07 | 湖南大学 | Tensile mechanism for stack rubber shock-insulating support seats |
| CN203129331U (en) * | 2013-03-19 | 2013-08-14 | 西安达盛隔震技术有限公司 | Pulling-resistant rubber isolation bearing |
| CN104674973A (en) * | 2015-02-11 | 2015-06-03 | 中国核电工程有限公司 | Shock isolation device with tensile property |
| CN204753824U (en) * | 2015-07-06 | 2015-11-11 | 陕西永安减震科技有限公司 | Three -dimensional resistance to plucking isolation bearing |
| CN105064528A (en) * | 2015-08-14 | 2015-11-18 | 中船第九设计研究院工程有限公司 | Slide bar type tensile limiting-displacement vibration isolation support |
| CN105178439A (en) * | 2015-08-14 | 2015-12-23 | 中船第九设计研究院工程有限公司 | Fastener type tensile limiting and damping bearing |
| CN205314138U (en) * | 2015-10-14 | 2016-06-15 | 西安达盛隔震技术有限公司 | Three -dimensional isolation bearing of resistance to plucking type |
| CN206599849U (en) * | 2017-03-27 | 2017-10-31 | 河海大学 | A kind of three-dimensional tension rubber earthquake isolation support |
| CN114961386A (en) * | 2022-05-20 | 2022-08-30 | 中铁第一勘察设计院集团有限公司 | Multidirectional spacing three-dimensional shock isolation device |
| CN217580661U (en) * | 2022-06-16 | 2022-10-14 | 四川大学 | Three-dimensional shock insulation support |
-
2023
- 2023-01-09 CN CN202310023252.5A patent/CN116005814A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176851A (en) * | 2001-12-12 | 2003-06-27 | Kawaguchi Metal Industries Co Ltd | Laminated rubber support |
| CN101769015A (en) * | 2009-12-16 | 2010-07-07 | 湖南大学 | Tensile mechanism for stack rubber shock-insulating support seats |
| CN203129331U (en) * | 2013-03-19 | 2013-08-14 | 西安达盛隔震技术有限公司 | Pulling-resistant rubber isolation bearing |
| CN104674973A (en) * | 2015-02-11 | 2015-06-03 | 中国核电工程有限公司 | Shock isolation device with tensile property |
| CN204753824U (en) * | 2015-07-06 | 2015-11-11 | 陕西永安减震科技有限公司 | Three -dimensional resistance to plucking isolation bearing |
| CN105064528A (en) * | 2015-08-14 | 2015-11-18 | 中船第九设计研究院工程有限公司 | Slide bar type tensile limiting-displacement vibration isolation support |
| CN105178439A (en) * | 2015-08-14 | 2015-12-23 | 中船第九设计研究院工程有限公司 | Fastener type tensile limiting and damping bearing |
| CN205314138U (en) * | 2015-10-14 | 2016-06-15 | 西安达盛隔震技术有限公司 | Three -dimensional isolation bearing of resistance to plucking type |
| CN206599849U (en) * | 2017-03-27 | 2017-10-31 | 河海大学 | A kind of three-dimensional tension rubber earthquake isolation support |
| CN114961386A (en) * | 2022-05-20 | 2022-08-30 | 中铁第一勘察设计院集团有限公司 | Multidirectional spacing three-dimensional shock isolation device |
| CN217580661U (en) * | 2022-06-16 | 2022-10-14 | 四川大学 | Three-dimensional shock insulation support |
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