CN205775821U - A kind of limit-type rubber earthquake isolation support - Google Patents
A kind of limit-type rubber earthquake isolation support Download PDFInfo
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Abstract
本实用新型公开了一种限位式橡胶隔震支座。包括上连接板、下连接板以及位于上连接板和下连接板之间的叠层橡胶构件，所述叠层橡胶构件分别与上连接板、下连接板固定连接；所述上连接板和下连接板之间位于叠层橡胶构件中心处设有用于减小所述叠层橡胶构件变形的限位装置。本实用新型限位式橡胶隔震支座能够当地震发生时，实现较好的水平限位能力和耗能能力，同时又具备一定的抗拉能力。
The utility model discloses a position-limiting rubber shock-isolation bearing. It includes an upper connecting plate, a lower connecting plate, and a laminated rubber member between the upper connecting plate and the lower connecting plate, and the laminated rubber member is fixedly connected with the upper connecting plate and the lower connecting plate respectively; the upper connecting plate and the lower connecting plate A limiting device for reducing deformation of the laminated rubber member is provided between the connecting plates at the center of the laminated rubber member. The position-limiting rubber shock-isolation bearing of the utility model can realize better horizontal position-limiting capacity and energy dissipation capacity when an earthquake occurs, and meanwhile has a certain tensile capacity.
Description
技术领域technical field
本实用新型涉及土木工程、桥梁工程技术领域，具体涉及一种用于土木工程结构、桥梁结构的限位式橡胶隔震支座。The utility model relates to the technical fields of civil engineering and bridge engineering, in particular to a space-limiting rubber shock-isolation bearing for civil engineering structures and bridge structures.
背景技术Background technique
在建筑结构设计中，在基础及上部结构之间设置隔震、减震支座能有效减轻地震灾害。叠层橡胶支座是目前应用最为广泛的一种隔震支座，它由天然橡胶薄层与薄钢板交替叠合，模压硫化而成，具有较高的竖向承载能力和较小的水平刚度，地震作用下能够产生足够的水平位移，延长结构自振周期，隔震效果明显，同时具有一定的自复位能力。研究发现：当地震作用较大，隔震层出现较大水平位移时，叠层橡胶支座容易出现极限剪切破坏，影响建筑物的安全，应对支座进行水平位移的限制；此外，普通叠层橡胶支座耗能性能、竖向抗拉性能不足，限制了适用范围。In the design of building structures, setting up isolation and shock-absorbing bearings between the foundation and the superstructure can effectively reduce earthquake disasters. The laminated rubber bearing is the most widely used seismic isolation bearing at present. It is made of natural rubber thin layers and thin steel plates alternately laminated, molded and vulcanized, and has high vertical bearing capacity and low horizontal stiffness. , under the action of an earthquake, it can produce sufficient horizontal displacement, prolong the natural vibration period of the structure, have obvious seismic isolation effect, and have a certain self-resetting ability at the same time. The study found that: when the earthquake is strong and the isolation layer has a large horizontal displacement, the laminated rubber bearing is prone to ultimate shear failure, which affects the safety of the building, and the horizontal displacement of the bearing should be limited; in addition, the ordinary laminated rubber bearing The energy dissipation performance and vertical tensile performance of the rubber bearing are insufficient, which limits the scope of application.
综上所述，开发一种能够隔离水平地震作用、允许较大位移，具有较好限位能力和耗能能力的橡胶隔震支座，具有重要的理论意义和实际应用价值。To sum up, it is of great theoretical significance and practical application value to develop a rubber isolation bearing that can isolate horizontal earthquake action, allow large displacement, and have better limit capacity and energy dissipation capacity.
实用新型内容Utility model content
本实用新型的目的是在现有叠层橡胶支座的基础上，对其进行改进，提供一种能够实现较好的水平限位能力和耗能能力，同时又具备一定的抗拉能力的限位式橡胶隔震支座。The purpose of this utility model is to improve it on the basis of the existing laminated rubber bearing, and to provide a limiter that can realize better horizontal limit capacity and energy consumption capacity, and has a certain tensile capacity at the same time. Bit type rubber shock-isolating bearing.
为了实现上述目的，本实用新型采用如下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种限位式橡胶隔震支座，包括上连接板、下连接板以及位于上连接板和下连接板之间的叠层橡胶构件，所述叠层橡胶构件分别与上连接板、下连接板固定连接；A position-limiting rubber shock-isolation bearing, comprising an upper connecting plate, a lower connecting plate, and a laminated rubber member located between the upper connecting plate and the lower connecting plate, and the laminated rubber member is respectively connected to the upper connecting plate and the lower connecting plate plate fixed connection;
所述上连接板和下连接板之间还设有用于减小所述叠层橡胶构件变形的限位装置。A limiting device for reducing deformation of the laminated rubber member is also provided between the upper connecting plate and the lower connecting plate.
所述限位装置包括筒形导向件、导杆、环形挡板、圆形挡板、第一球形装置、第二球形装置以及环形弹簧，其中，筒形导向件具有一个封闭端和一个开口端，其封闭端与第一球形装置固定连接；The limiting device includes a cylindrical guide, a guide rod, an annular baffle, a circular baffle, a first spherical device, a second spherical device and an annular spring, wherein the cylindrical guide has a closed end and an open end , the closed end of which is fixedly connected with the first spherical device;
筒形导向件内滑动连接所述导杆，导杆伸进筒形导向件内的一端固定连接所述圆形挡板，导杆另一端与第二球形装置固定连接；筒形导向件的开口端处固定连接环形挡板；所述环形弹簧套设在导杆外侧位于圆形挡板与环形挡板之间；The guide rod is slidably connected in the cylindrical guide, one end of the guide rod extending into the cylindrical guide is fixedly connected to the circular baffle, and the other end of the guide rod is fixedly connected with the second spherical device; the opening of the cylindrical guide The end is fixedly connected to the annular baffle; the annular spring is sleeved on the outside of the guide rod and located between the circular baffle and the annular baffle;
所述第一球形装置与上连接板之间、第二球形装置与下连接板之间分别可转动的嵌合连接。The first spherical device and the upper connecting plate, and the second spherical device and the lower connecting plate are respectively rotatably fitted and connected.
进一步的，圆形挡板与筒形导向件的接触面、导杆与筒形导向件的接触面均涂覆有低摩擦材料，如聚四氟乙烯等。Further, the contact surfaces of the circular baffle and the cylindrical guide, and the contact surfaces of the guide rod and the cylindrical guide are all coated with low-friction materials, such as polytetrafluoroethylene.
进一步的，所述上连接板和下连接板的内侧壁上设有球形凹槽，所述第一球形装置、第二球形装置分别嵌设在所述球形凹槽内，镶嵌的接触面涂有低摩擦材料，如聚四氟乙烯等。Further, the inner side walls of the upper connecting plate and the lower connecting plate are provided with spherical grooves, the first spherical device and the second spherical device are respectively embedded in the spherical grooves, and the inlaid contact surfaces are coated with Low-friction materials, such as polytetrafluoroethylene, etc.
进一步的，所述叠层橡胶构件包括通过模压硫化交替叠置在一起的若干层橡胶薄层和钢板薄层，以及设上封刚性板和下封刚性板，其中，顶层橡胶薄层与上封刚性板固定连接，底层橡胶薄层与下封刚性板固定连接；叠层橡胶构件在硫化过程中，橡胶薄层与钢板薄层的外侧面自然形成橡胶保护层。Further, the laminated rubber member includes several layers of rubber thin layers and steel plate thin layers alternately stacked together by molding vulcanization, and an upper sealing rigid plate and a lower sealing rigid plate, wherein the top layer of rubber thin layer and the upper sealing The rigid plate is fixedly connected, and the bottom rubber thin layer is fixedly connected with the lower sealing rigid plate; during the vulcanization process of the laminated rubber member, the rubber thin layer and the outer surface of the steel plate thin layer naturally form a rubber protective layer.
进一步的，所述叠层橡胶构件中设置有用于放置所述限位装置的预留孔道。Further, the laminated rubber member is provided with a reserved hole for placing the limiting device.
本实用新型的有益效果是：The beneficial effects of the utility model are:
所述支座通过叠层橡胶构件提供竖向承载能力，在支座承受较大竖向压力或竖向地震作用下，环形弹簧受拉变形，提供一定的反向作用力以减小叠层橡胶构件的竖向变形；在支座承受竖向拉力时，环形弹簧受压变形，提供一定的抗拉能力；支座通过限位装置提供水平限位能力，在水平地震作用下，叠层橡胶构件具有较柔的水平刚度，保证支座产生任意方向的水平位移；环形弹簧在拉伸、压缩过程中以弹性势能的形式存储部分地震能量，导杆及球形装置利用接触面产生的摩擦力亦能够消耗部分地震能量；在地震过后，支座在叠层橡胶构件及环形弹簧共同作用下，能够实现自动复位。The support provides vertical bearing capacity through the laminated rubber member. When the support bears a large vertical pressure or a vertical earthquake, the ring spring deforms under tension and provides a certain reverse force to reduce the load of the laminated rubber. Vertical deformation of the component; when the support bears vertical tension, the annular spring is compressed and deformed to provide a certain tensile capacity; the support provides horizontal limit capacity through the limit device. Under the action of a horizontal earthquake, the laminated rubber component It has a relatively soft horizontal stiffness to ensure the horizontal displacement of the support in any direction; the ring spring stores part of the seismic energy in the form of elastic potential energy during the stretching and compression process, and the friction generated by the guide rod and the spherical device can also be used by the contact surface. Consume part of the earthquake energy; after the earthquake, the bearing can realize automatic reset under the joint action of the laminated rubber member and the ring spring.
附图说明Description of drawings
图1为本实用限位式橡胶隔震支座的结构示意图；Fig. 1 is the structural schematic diagram of the practical position-limiting rubber shock-isolation bearing;
图2为本实用限位式橡胶隔震支座的限位装置结构示意图；Fig. 2 is a structural schematic diagram of the limit device of the practical limit type rubber shock-isolation bearing;
1 为橡胶薄层；2为钢板薄层；3为橡胶保护层；4为上封刚性板；5为下封刚性板；6为预留孔道；7为筒形导向件；8为导杆；9为环形挡板；10为圆形挡板；11为第二球形装置；12为环形弹簧；13为低摩擦材料；14为球形凹槽；15为上连接板；16为下连接板；17为第一球形装置。1 is a thin layer of rubber; 2 is a thin layer of steel plate; 3 is a protective rubber layer; 4 is an upper sealing rigid plate; 5 is a lower sealing rigid plate; 6 is a reserved hole; 7 is a cylindrical guide; 8 is a guide rod; 9 is an annular baffle; 10 is a circular baffle; 11 is a second spherical device; 12 is an annular spring; 13 is a low-friction material; 14 is a spherical groove; 15 is an upper connecting plate; 16 is a lower connecting plate; 17 is the first spherical device.
具体实施方式detailed description
下面结合附图和具体实施方式对本实用新型作进一步详细说明。The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
如图1、2所示一种限位式橡胶隔震支座，包括叠层橡胶构件、限位装置、上连接板15和下连接板16，所述叠层橡胶构件与上连接板15、下连接板16分别通过螺栓固定连接，限位装置设置在叠层橡胶构件中心预留的通孔内，并与上连接板15、下连接板16通过球形凹槽14镶嵌连接。上连接板15通过螺栓与上部建筑物固定连接，下连接板16通过螺栓与下部建筑物固定连接。As shown in Figures 1 and 2, a position-limited rubber shock-isolation bearing includes a laminated rubber member, a limit device, an upper connecting plate 15 and a lower connecting plate 16, and the laminated rubber member is connected to the upper connecting plate 15, The lower connecting plates 16 are respectively fixedly connected by bolts, and the limit device is arranged in the through hole reserved in the center of the laminated rubber member, and is inlaid connected with the upper connecting plate 15 and the lower connecting plate 16 through the spherical groove 14 . The upper connecting plate 15 is fixedly connected with the upper building by bolts, and the lower connecting plate 16 is fixedly connected with the lower building by bolts.
所述叠层橡胶构件包括若干橡胶薄层1和钢板薄层2、上封刚性板4和下封刚性板5，其中，若干橡胶薄层1与若干钢板薄层2通过模压硫化交替叠置，顶层橡胶薄层与上封刚性板4硫化固定连接，底层橡胶薄层与下封刚性板5硫化固定连接；叠层橡胶构件在硫化过程中，橡胶薄层1与钢板薄层2的外侧面自然形成橡胶保护层3。The laminated rubber member includes several rubber thin layers 1 and steel plate thin layers 2, upper sealing rigid plates 4 and lower sealing rigid plates 5, wherein several rubber thin layers 1 and several steel plate thin layers 2 are stacked alternately by molding vulcanization, The top rubber thin layer is vulcanized and fixedly connected to the upper sealing rigid plate 4, and the bottom rubber thin layer is vulcanized and fixedly connected to the lower sealing rigid plate 5; during the vulcanization process of the laminated rubber member, the outer surface of the rubber thin layer 1 and the steel plate thin layer 2 naturally A rubber protective layer 3 is formed.
此外，叠层橡胶构件中心设置直径d、高度h的预留孔道6。In addition, a reserved hole 6 with diameter d and height h is set in the center of the laminated rubber member.
上述限位装置包括长度为l的筒形导向件7和导杆8、环形挡板9、圆形挡板10、球形装置11、环形弹簧12，其中，筒形导向件7上部与球形装置11通过螺栓固定连接，下部与环形挡板9固定连接，筒形导向件7内部设置导杆8和环形弹簧12；导杆8上部与圆形挡板10固定连接，下部穿过环形挡板9与球形装置11通过螺栓固定连接，圆形挡板10内侧面及导杆侧面涂低摩擦材料13，如聚四氟乙烯等，使导杆8能够在筒形导向件7内自由滑动。Above-mentioned position-limiting device comprises the cylindrical guide member 7 that length is 1 and guide rod 8, annular baffle plate 9, circular baffle plate 10, spherical device 11, annular spring 12, wherein, cylindrical guide member 7 tops and spherical device 11 Fixedly connected by bolts, the lower part is fixedly connected with the annular baffle 9, and a guide rod 8 and an annular spring 12 are arranged inside the cylindrical guide 7; the upper part of the guide rod 8 is fixedly connected with the circular baffle 10, and the lower part passes through the annular baffle 9 and The spherical device 11 is fixedly connected by bolts, and the inner surface of the circular baffle 10 and the side of the guide rod are coated with low-friction material 13, such as polytetrafluoroethylene, etc., so that the guide rod 8 can slide freely in the cylindrical guide 7.
环形弹簧12套在导杆8外侧，上部与圆形挡板10相连，下部与环形挡板9连接。The annular spring 12 is sleeved on the outside of the guide rod 8 , the upper part is connected with the circular baffle 10 , and the lower part is connected with the annular baffle 9 .
第一球形装置镶嵌于上连接板15中心设置的球形凹槽内，第二球形装置镶嵌于下连接板16中心设置的球形凹槽内，镶嵌的接触面涂有低摩擦材料13，如聚四氟乙烯等，使第一球形装置和第二球形装置能够实现任意方向的自由旋转。The first spherical device is embedded in the spherical groove provided at the center of the upper connecting plate 15, the second spherical device is embedded in the spherical groove provided at the center of the lower connecting plate 16, and the inlaid contact surface is coated with a low-friction material 13, such as polystyrene Vinyl fluoride, etc., enable the first spherical device and the second spherical device to realize free rotation in any direction.
上述支座通过叠层橡胶构件提供竖向承载能力，叠层橡胶构件在承受正常竖向荷载时会发生微小的竖向压缩变形，因此，限位装置中的环形弹簧12仅发生微小的拉伸形变，可忽略不计。在支座承受较大竖向压力或竖向地震作用下，环形弹簧12根据支座的拉压变形情况，产生相反的变形，提供一定的反向作用力以减小叠层橡胶构件的竖向变形，其中，叠层橡胶构件预留孔道6高度应大于筒形导向件7和导杆8的长度l，即h – l ≥δ v （支座竖向压缩量）。在支座承受竖向拉力时，环形弹簧12受压变形，提供一定的抗拉能力。The above-mentioned support provides vertical bearing capacity through laminated rubber components, and the laminated rubber components will undergo slight vertical compression deformation when subjected to normal vertical loads. Therefore, the ring spring 12 in the limit device will only slightly stretch Deformation is negligible. When the support bears a large vertical pressure or vertical earthquake, the ring spring 12 produces opposite deformation according to the tension and compression deformation of the support, and provides a certain reverse force to reduce the vertical force of the laminated rubber member. Deformation, wherein the height of the reserved hole 6 of the laminated rubber member should be greater than the length l of the cylindrical guide 7 and the guide rod 8, that is, h – l ≥ δ v (vertical compression of the support). When the support bears the vertical tension, the annular spring 12 is compressed and deformed to provide a certain tensile capacity.
上述支座通过限位装置提供水平限位能力。在水平地震作用下，叠层橡胶构件具有较柔的水平刚度，保证支座产生任意方向的水平位移，限位装置内的导杆8在筒形导向件7内滑动，带动环形弹簧12产生较大压缩变形；当导杆8上部的圆形挡板10接近筒形导向件7下部的环形挡板9时，环形弹簧12达到最大压缩变形，支座达到最大水平位移量，即 δ h （支座水平位移量）；环形弹簧12在拉伸、压缩过程中以弹性势能的形式存储部分地震能量，导杆8及第一球形装置、第二球形装置利用接触面产生的摩擦力亦能够消耗部分地震能量。在地震过后，支座在叠层橡胶构件及环形弹簧12共同作用下，能够实现自动复位。The above-mentioned support provides a horizontal limit capability through a limit device. Under the action of a horizontal earthquake, the laminated rubber member has relatively soft horizontal stiffness, which ensures the horizontal displacement of the support in any direction. The guide rod 8 in the limit device slides in the cylindrical guide 7, driving the ring spring 12 to produce large compression deformation; when the circular baffle 10 on the upper part of the guide rod 8 is close to the annular baffle 9 on the lower part of the cylindrical guide 7, the annular spring 12 reaches the maximum compression deformation, and the support reaches the maximum horizontal displacement, namely δ h (horizontal displacement of the support); the ring spring 12 stores part of the seismic energy in the form of elastic potential energy during stretching and compression, and the guide rod 8, the first spherical device, and the second spherical device utilize the friction generated by the contact surface It can also consume part of the seismic energy. After the earthquake, under the joint action of the laminated rubber member and the ring spring 12, the bearing can realize automatic reset.
上述支座的叠层橡胶构件与限位装置可根据实际工程需要以及当地抗震设防要求选择合适的尺寸及应用数量；支座水平向限位性能取决于限位装置所选材料的强度、刚度；支座的各部分构件之间，与上、下部建筑物的连接方式不限于螺栓固定的连接方式，本领域内的技术人员可以变换其他的连接方式，如采用焊接、铰接等方式连接。The laminated rubber components and limit devices of the above-mentioned supports can be selected according to the actual engineering needs and the local seismic fortification requirements to select the appropriate size and application quantity; the horizontal limit performance of the support depends on the strength and stiffness of the materials selected for the limit devices; The connection between the various parts of the support and the upper and lower buildings is not limited to the bolted connection. Those skilled in the art can change other connection methods, such as welding and hinged connections.
通过上述实施例中对所述的限位式橡胶隔震支座的结构布置方式的描述及竖向承载性能、水平限位能力的分析，可以看出本实用新型所公开的限位式橡胶隔震支座在现有叠层橡胶支座的基础上，通过改进能够实现较好的水平限位能力和耗能能力，同时又具备一定的抗拉能力。所述限位式橡胶隔震支座具有占据空间小的优点，能应用在建筑、桥梁等工程领域，具有广泛的适用性。Through the description of the structural arrangement of the space-limiting rubber shock-isolating bearing in the above-mentioned embodiments and the analysis of the vertical load-bearing performance and the horizontal space-limiting capacity, it can be seen that the space-limiting rubber isolation bearing disclosed in the utility model On the basis of the existing laminated rubber bearing, the seismic bearing can achieve better horizontal limit capacity and energy dissipation capacity through improvement, and at the same time have a certain tensile capacity. The position-limiting rubber shock-isolation bearing has the advantage of occupying a small space, can be applied in engineering fields such as buildings and bridges, and has wide applicability.
以上实施例仅为本实用新型的示例性实施例，不用于限制本实用新型，本实用新型的保护范围由附加的权利要求书限定。本领域技术人员可以在本实用新型的实质和保护范围内，对本实用新型做出各种修改或等同替换，这种修改或等同替换也应视为落在本实用新型的保护范围内。The above embodiments are only exemplary embodiments of the utility model, and are not intended to limit the utility model, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the spirit and protection scope of the utility model, and such modifications or equivalent replacements should also be deemed to fall within the protection scope of the utility model.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108166707A (en) * | 2018-02-11 | 2018-06-15 | 四川中塑高分子材料有限公司 | It is a kind of to flexibly support foot and its ground cushion with support feet |
| CN110259238A (en) * | 2019-06-14 | 2019-09-20 | 太原理工大学 | Streaming variant compound support damper in the cylinder of the outer lead-sheathing body of rigid sleeve slide bar |
| CN110965463A (en) * | 2019-12-19 | 2020-04-07 | 安徽微威减震降噪技术研究院 | Rubber shock insulation support |
| CN111254989A (en) * | 2020-03-18 | 2020-06-09 | 南京工业大学 | Spring core high damping rubber shock insulation support |
| CN112431316A (en) * | 2020-11-19 | 2021-03-02 | 东莞理工学院 | Universal anti-pulling laminated rubber support |
| CN114718364A (en) * | 2022-05-19 | 2022-07-08 | 东南大学 | A kind of multi-dimensional vibration isolation/vibration sliding plate bearing |
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2016
- 2016-06-29 CN CN201620662264.8U patent/CN205775821U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108166707A (en) * | 2018-02-11 | 2018-06-15 | 四川中塑高分子材料有限公司 | It is a kind of to flexibly support foot and its ground cushion with support feet |
| CN108166707B (en) * | 2018-02-11 | 2024-08-30 | 四川中塑高分子材料有限公司 | Elastic supporting leg and floor mat with same |
| CN110259238A (en) * | 2019-06-14 | 2019-09-20 | 太原理工大学 | Streaming variant compound support damper in the cylinder of the outer lead-sheathing body of rigid sleeve slide bar |
| CN110259238B (en) * | 2019-06-14 | 2020-12-04 | 太原理工大学 | In-cylinder rheological composite bearing damper with rigid sleeve sliding rod covered with lead body |
| CN110965463A (en) * | 2019-12-19 | 2020-04-07 | 安徽微威减震降噪技术研究院 | Rubber shock insulation support |
| CN111254989A (en) * | 2020-03-18 | 2020-06-09 | 南京工业大学 | Spring core high damping rubber shock insulation support |
| CN112431316A (en) * | 2020-11-19 | 2021-03-02 | 东莞理工学院 | Universal anti-pulling laminated rubber support |
| CN112431316B (en) * | 2020-11-19 | 2022-03-22 | 东莞理工学院 | Universal anti-pulling laminated rubber support |
| CN114718364A (en) * | 2022-05-19 | 2022-07-08 | 东南大学 | A kind of multi-dimensional vibration isolation/vibration sliding plate bearing |
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