Tension-resistant device for an isolation layer

Abstract

The present disclosure relates to the technical field of building isolation, and provides a tensile-resistant device for an isolation layer, which comprises a first chain formed by sequentially connecting at least two first chain links, and has a crossing space between the two interconnected first chain links, and an elastic member is arranged in the crossing space, and the elastic member is used to provide elastic resistance for the two interconnected first chain links moving away from each other. Through the above technical scheme, the technical problems of complex structure, rigid connection of the existing connection mode, limited horizontal displacement, unstable connection and high manufacturing cost in the prior art are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of building seismic isolation technology, and more specifically, to a tensile device for a seismic isolation layer. Background Technology

[0002] The main function of the seismic isolation layer tensile device is to prevent buildings from overturning or excessively stretching under earthquakes or strong winds. Specifically, the seismic isolation layer tensile device, through its internal isolation materials and tensile components, disperses and buffers the horizontal and vertical forces generated by an earthquake, thereby reducing the impact of vibrations on the building. Existing tensile devices are generally of two types: guide rail type and tie rod type.

[0003] The Chinese utility model patent with authorization announcement number "CN220504206U" entitled "A Novel Guide Rail Type Tensile Device" includes an upper guide rail and a lower guide rail arranged in a cross shape, which are respectively installed in the upper and lower parts of an intermediate connecting member. The upper guide rail slides in cooperation with an upper roller above it, and the upper roller is located in the upper part of the intermediate connecting member. The lower guide rail slides in cooperation with a lower roller below it, and the lower roller is located in the lower part of the intermediate connecting member. The upper guide rail has upper connecting members vertically upward at both ends, and the lower guide rail has lower connecting members vertically downward at both ends.

[0004] The Chinese utility model patent with authorization announcement number "CN206143944U" entitled "A Universal Rotation Type Seismic Isolation Layer Tensile and Horizontal Limiting Device" includes a spherical universal hinge, a vertical limiting plate, a steel rod, and high-strength bolts. The spherical universal hinge is installed at both ends of the steel rod, and the spherical universal hinge is installed in the groove of the vertical limiting plate. The vertical limiting plate is installed on the upper and lower concrete supports by high-strength bolts.

[0005] While the aforementioned tensile devices each have their advantages, their disadvantages are equally obvious: the guide rail type tensile device only has sliding in two directions (cross and intersection), which cannot meet the displacement requirements in other directions during an earthquake, and is prone to jamming and failure; although the tie rod type tensile device can meet the displacement requirements in all directions, the force capacity of the rods is intersecting, and the ball joint movement is also somewhat unreliable. In addition, both of the above-mentioned products are rigid connection structures without energy-dissipating buffer devices, which can easily cause stress damage to the connection parts of the building. Furthermore, the product structure is relatively complex, the manufacturing cost is high, and the connection is unstable. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a tensile device for a seismic isolation layer, which solves the technical problems of complex structure, rigid connection, limited horizontal displacement, unstable connection and high manufacturing cost in the prior art.

[0007] According to one aspect, at least one embodiment of this disclosure provides a tensile device for a seismic isolation layer, comprising: a first chain formed by sequentially connecting at least two first links, with a cross space between the two interconnected first links, and an elastic element disposed within the cross space, the elastic element being configured to generate elastic resistance opposite to the direction of relative movement of the two interconnected first links when the first chain is pulled and the two interconnected first links move relative to each other, so as to resist further movement of the two interconnected first links.

[0008] For example, in a tensile device for a seismic isolation layer provided in at least one embodiment of this disclosure, the elastic element is provided in the cross space and on the periphery of the first chain, such that the elastic element covers the first chain.

[0009] For example, in a tensile device for a vibration isolation layer provided in at least one embodiment of this disclosure, the length of the elastic element is less than the length of the first chain, so that the first chain links located at both ends of the first chain are exposed.

[0010] For example, in a tensile device for a seismic isolation layer provided in at least one embodiment of this disclosure, the elastic element is a rubber element.

[0011] For example, in at least one embodiment of the present disclosure, a tensile device for a seismic isolation layer is provided, which further includes a base having a connecting portion and is used to fix it to a building beam.

[0012] For example, in at least one embodiment of this disclosure, a tensile device for a seismic isolation layer further includes: a first connector, one end of which is movably connected to a first chain link located at one end of the first chain.

[0013] For example, in a tensile device for a seismic isolation layer provided in at least one embodiment of this disclosure, the other end of the first connector is movably sleeved with the connecting portion.

[0014] For example, in at least one embodiment of the present disclosure, a tensile device for a seismic isolation layer further includes: a second connector, one end of which is movably sleeved with one end of the first connector, and the other end of which is movably sleeved with the connecting portion.

[0015] For example, in a tensile device for a seismic isolation layer provided in at least one embodiment of this disclosure, the first connector is a D-type shackle.

[0016] For example, in a tensile device for a seismic isolation layer provided in at least one embodiment of this disclosure, the second connecting member is a chain.

[0017] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the chain link structure and the cooperation of the elastic element, compared with the poor force-bearing capacity of the rod in the tie rod type tensile device, can more effectively disperse and bear external forces. The elastic resistance provided by the elastic element also helps to control the deformation of the chain, improve the mechanical performance and reliability of the entire tensile device, and avoid the problem of unreliable ball joint movement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a structural schematic diagram of a tensile device for a seismic isolation layer disclosed herein; Figure 2 This is a partial structural diagram of the first chain in this disclosure.

[0020] In the diagram: 1. First chain; 101. Cross space; 2. First connector; 3. Seat; 301. Connecting part; 4. Second connector; 5. Elastic element; 6. Building beam; 7. First chain link. Detailed Implementation

[0021] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0024] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-2 As shown, this invention discloses a tensile device for a seismic isolation layer. In some examples, the first chain 1 is formed by sequentially connecting at least two first links 7, possessing a certain degree of flexibility and deformability. A cross space 101 exists between the two interconnected first links 7, and an elastic element 5 is disposed within this cross space 101. When the building displaces under the influence of an earthquake or strong wind, the chain deforms accordingly, causing relative movement between the interconnected first links 7. At this time, the elastic element 5 is subjected to tension or compression, generating elastic resistance opposite to the direction of relative movement of the links, thus resisting further movement of the links. Through the deformation of the elastic element 5 and the generated elastic resistance, the external forces acting on the building are buffered and absorbed, reducing the vibration energy transmitted to the main structure of the building. The elastic element 5 can be made of rubber, spring steel, polyurethane elastomer, etc.

[0028] Compared with existing guide rail and tie rod type tensile devices, this solution can absorb and dissipate energy through the deformation of elastic element 5 during earthquakes or strong winds, playing a buffering role, effectively reducing the stress on the building connection 301, reducing damage caused by stress concentration, and avoiding the problem that existing rigid connection structures without energy-dissipating buffer devices are prone to stress damage to the building connection 301.

[0029] The chain structure has a certain degree of flexibility, and can deform and displace in multiple directions. It can better adapt to the displacement requirements of buildings in different directions during earthquakes, and is less prone to jamming and failure, thus making up for the shortcomings of guide rail-type tensile devices in terms of directional adaptability.

[0030] Compared to the two existing tensile testing devices, this solution has a relatively simple structure, eliminating complex components such as guide rails, rollers, and spherical universal joints. This reduces the number of parts and manufacturing complexity, thus lowering manufacturing costs. Simultaneously, the simple structure also improves connection stability to some extent, reducing connection instability issues caused by structural complexity.

[0031] The combination of the chain link structure and the elastic element 5, compared to the poor force-bearing capacity of the rod in the tie rod type tensile device, can more effectively disperse and bear external forces. The elastic resistance provided by the elastic element 5 also helps to control the degree of chain deformation, improve the mechanical performance and reliability of the entire tensile device, and avoid the problem of unreliable ball joint movement.

[0032] In some examples, elastic elements 5 are arranged around the periphery of the first chain 1, covering it. When the chain as a whole is subjected to external forces such as tension or compression, the elastic elements 5 will come into contact with the external environment and deform. These elastic elements 5 adapt to the direction and magnitude of the external force on the chain through their own deformation, distributing the external force across the entire covered area of ​​the elastic elements 5, further buffering and absorbing energy. Moreover, the presence of the peripheral elastic elements 5 can limit the deformation of the chain within a certain range, preventing excessive deformation of the chain from causing failure.

[0033] Compared to setting elastic elements 5 only in the intersection space 101, setting elastic elements 5 around the chain and covering the chain greatly increases the number and effective area of ​​elastic elements 5. More elastic elements 5 can absorb and dissipate more energy, more effectively buffer external forces generated by earthquakes or strong winds, better protect the building connection 301, further reduce the risk of stress failure, and improve the overall energy dissipation and buffering performance of the tensile device.

[0034] The elastic element 5 encases the chain, providing protection and constraint. It prevents direct rigid collisions or friction between the chain and other components during movement, reducing the likelihood of chain damage. Simultaneously, the peripheral elastic element 5 restricts chain deformation, ensuring the chain maintains a relatively stable working state under various operating conditions, preventing failure due to excessive chain deformation, and improving the stability and reliability of the tensile device.

[0035] Because the elastic element 5 covers the chain, regardless of the direction from which external force acts on the chain, the corresponding elastic element 5 can cope with and buffer it. This allows the tensile device to better adapt to complex and changing external force environments, effectively resisting and buffering displacements and forces that may occur in various directions during earthquakes and other events, overcoming the limitations of some existing tensile devices in terms of directional adaptability.

[0036] This design achieves better protection and improved performance of the chain by incorporating elastic elements 5 around the chain and covering it, without adding too many complex structures and components. The overall structure is relatively compact, without overly complicated design, which helps reduce manufacturing costs and installation difficulty while ensuring functionality, and also facilitates later maintenance and inspection.

[0037] In some examples, the length of the elastic element 5 is less than the length of the first chain 1, thus exposing the first links 7 at both ends of the first chain 1. These exposed links 7 can be directly connected to other components (such as the building's connecting structure). At the connection point 301, the exposed links can more directly transmit tension and displacement, and the fact that the elastic element 5 does not cover this part makes the connection operation more convenient. Under the influence of external forces such as earthquakes or strong winds, the chain reduces the impact force transmitted to the connection point 301 through the buffering effect of the elastic element 5, while the exposed links ensure that the tension is effectively transmitted to the building structure, achieving the function of tensile resistance.

[0038] In some examples, the elastic element 5 is preferably a high-strength rubber element. High-strength rubber itself has excellent elasticity, which can effectively absorb and buffer the impact force generated by earthquakes or strong winds, reducing the damage of external forces to the building structure. After forming an integral structure with the chain links through hot vulcanization, the rubber element can better exert its elastic properties, provide a stable buffering effect for the chain, and improve the seismic isolation effect of the tensile device of the seismic isolation layer.

[0039] Specifically, high-strength rubber is hot-vulcanized with the first link 7 (metal). During the hot vulcanization process, the high temperature causes the rubber material to reach a certain plastic state, allowing it to tightly fill the surface of the first link 7 and the intersecting spaces 101 between the links. Simultaneously, the two connected links move closer together, increasing the intersecting spaces 101. After vulcanization, the first link 7 has a certain amount of room to move within the rubber, allowing the chain to deform freely under stress, better adapting to the displacement requirements of the building in different directions and to varying degrees. Compared to rigid connection structures, this design can more flexibly cope with complex external force environments, reducing the risk of structural damage due to displacement restrictions. Furthermore, the vulcanized rubber forms an integral covering structure around the links. Under this structure, when the chain deforms under stress, the rubber components and links do not easily slip relative to each other, allowing for coordinated deformation, thus effectively transferring external forces to the rubber components for buffering and energy dissipation.

[0040] In some examples, one end of the first connector 2 is movably engaged with a first link 7 located at one end of the first chain 1. The first connector 2 can be a shackle, U-ring, or lifting ring, etc. The engagement allows the first connector 2 to rotate or swing around the first link 7 within a certain range. When a building displaces under the influence of an earthquake or strong wind, the first chain 1 will undergo stretching, compression, or deformation. At this time, because the first connector 2 is movably engaged with the first link 7, it can adjust its position and angle accordingly to follow the movement of the chain and adapt to the deformation of the chain.

[0041] In some examples, one end of the second connector 4 is movably sleeved with one end of the first connector 2, and the other end is movably sleeved with the connecting part 301 of the base 3. This connection method allows all three components (second connector 4, first connector 2, and connecting part 301) to have relative degrees of freedom of movement. When the building is displaced due to external forces such as earthquakes or strong winds, the first chain 1 drives the first connector 2 to move. Since the second connector 4 is movably sleeved with the first connector 2, the movement of the first connector 2 can cause the second connector 4 to rotate or swing within a certain range. At the same time, the other end of the second connector 4 is movably sleeved with the connecting part 301, so that the connecting part 301 can also adjust its position and angle accordingly with the movement of the second connector 4. In this way, the entire connection structure can adapt to the deformation of the first chain 1 and the displacement of the building, and disperse and buffer external forces through the coordinated movement of multiple movable connection points.

[0042] In some examples, the first connector 2 is a D-type shackle, which is typically made of high-strength steel and has high tensile strength and load-bearing capacity. Using a D-type shackle as the first connector 2 in the seismic isolation layer tensile device can reliably withstand the large tensile force transmitted from the first chain 1, and is less prone to breakage or damage, ensuring the safety and reliability of the entire device during operation. Even under extreme conditions such as strong earthquakes or strong winds, the D-type shackle can effectively transmit tensile force and maintain the normal operation of the device. Alternatively, the first connector 2 can also be a node plate, connected to the base 3 via a pin.

[0043] In some examples, the second connector 4 can be a chain, with one end movably connected to one end of the first connector 2 and the other end movably connected to the connecting part 301 of the base 3. The chain is composed of multiple links connected sequentially, giving it a certain degree of flexibility and deformability. During connection, the links of the chain can be easily connected to the first connector 2 (such as a D-type shackle) and the connecting part 301 by means of a sleeve. When the building displaces due to external forces such as earthquakes or strong winds, the first chain 1 drives the first connector 2 to move. Since the second chain is movably connected to the first connector 2, the movement of the first connector 2 can cause the second chain to undergo corresponding stretching, bending, or torsional deformations. At the same time, the other end of the second chain is movably connected to the connecting part 301, allowing the connecting part 301 to adjust its position and angle according to the deformation of the second chain, thereby adapting to the displacement of the building and realizing force transmission and buffering.

[0044] In summary, this solution offers advantages such as energy buffering, unrestricted horizontal displacement, stable connection, easy replacement, and low cost. High-strength chain links enable free horizontal displacement in all directions while ensuring vertical tensile strength. The combination of chain links and high-strength rubber, with pre-reserved displacement within the rubber, provides both energy buffering performance and limits excessive vertical displacement.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A tensile device for a seismic isolation layer, characterized in that, include: The first chain (1) is formed by connecting at least two first links (7) in sequence. There is a cross space (101) between the two interconnected first links (7). An elastic element (5) is provided in the cross space (101). The elastic element (5) is used to generate an elastic resistance opposite to the relative movement direction of the two interconnected first links (7) when the first chain (1) is pulled and the two interconnected first links (7) move relative to each other, so as to resist further movement of the two interconnected first links (7).

2. The tensile device for a seismic isolation layer according to claim 1, characterized in that, The elastic element (5) is provided in the cross space (101) and on the periphery of the first chain (1), so that the elastic element (5) covers the first chain (1).

3. The tensile device for a seismic isolation layer according to claim 2, characterized in that, The length of the elastic element (5) is less than the length of the first chain (1), so that the first chain links (7) located at both ends of the first chain (1) are exposed.

4. The tensile device for a seismic isolation layer according to claim 1, characterized in that, The elastic element (5) is a rubber element.

5. A tensile device for a seismic isolation layer according to claim 1, characterized in that, Also includes: The first connector (2) is movably connected at one end to one end of the first chain (1).

6. A tensile device for a seismic isolation layer according to claim 5, characterized in that, Also includes: The seat (3) has a connecting part (301) and is used to fix it to the building beam (6). The other end of the first connector (2) is directly or indirectly connected to the connecting part (301).

7. A tensile device for a seismic isolation layer according to claim 6, characterized in that, The other end of the first connector (2) is directly and movably connected to the connecting part (301).

8. A tensile device for a seismic isolation layer according to claim 6, characterized in that, The other end of the first connector (2) is indirectly connected to the connecting part (301), and the tensile device for the seismic isolation layer further includes: The second connector (4) has one end movably connected to one end of the first connector (2), and the other end of the second connector (4) is movably connected to the connecting part (301).

9. A tensile device for a seismic isolation layer according to claim 6, characterized in that, The first connector (2) is a D-type shackle.

10. A tensile device for a seismic isolation layer according to claim 8, characterized in that, The second connector (4) is a chain.

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