Height adjustable seismic and tensile isolation device
By introducing an adjustment plate and height adjustment components into the seismic isolation and tensile device, the problems of mismatched device height and increased friction were solved, thereby improving the applicability and seismic performance of the device.
Patent Information
- Application Number
- CN202521875436.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-01
AI Technical Summary
The existing seismic isolation tensile device has a fixed height, which is prone to misfit due to construction errors. Furthermore, the friction increases with the load, which may lead to sliding failure and affect the reliability of the seismic isolation system.
A device comprising an adjusting plate, a lower slide rail plate, an upper slide rail plate, and a height adjusting assembly was designed. The height of the lower slide rail plate is adjusted by adjusting bolts, ensuring that the device can adapt to construction errors and reduce friction, thus ensuring normal sliding.
This technology enables adjustable device height, accommodates construction errors, reduces friction, and improves seismic performance and the reliability of the isolation system.
Smart Images
Figure CN224678923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seismic resistance technology of building structures, specifically to a height-adjustable seismic isolation and tensile device. Background Technology
[0002] Tensile devices are widely used in seismic reinforcement projects for buildings and bridges. Their function is to constrain the isolation layer vertically during an earthquake, preventing vertical tension and protecting the isolation bearings from damage. This ensures the structure does not experience tensile stress, overturning, or collapse during an earthquake. Tensile devices are typically installed between upper and lower concrete piers at a fixed height. In high-intensity seismic isolation designs, isolation bearings are usually used in conjunction with tensile devices. While the height of the tensile device is fixed, construction errors are inevitable. To avoid mismatches between the tensile device height and the isolation layer height...
[0003] However, existing seismic isolation tensile devices still have some technical problems. First, most existing seismic isolation tensile devices have a fixed height. When errors occur during concrete construction, the height of the device can easily become mismatched with the height of the isolation layer, affecting the normal installation and use of the device. Second, as the construction of the superstructure progresses, the load on the upper part of the isolation layer gradually increases, causing the tensile device to be gradually compressed, resulting in increased friction. This may prevent the tensile device from sliding normally during an earthquake, leading to the failure of the seismic isolation system.
[0004] Therefore, there is an urgent need for a seismic isolation and tensile device with a simple structure, adjustable height, and effective guarantee of sliding performance, in order to solve the problems existing in the current technology and improve the reliability and applicability of the seismic isolation system. Utility Model Content
[0005] The technical problem this utility model aims to solve is to address the shortcomings of existing seismic isolation tensile devices by providing a height-adjustable seismic isolation tensile device. This addresses the issue that existing seismic isolation tensile devices have a fixed height, which can easily lead to mismatches between the device height and the seismic isolation layer height when errors occur during concrete construction; and that as the superstructure construction progresses, the load on the upper part of the seismic isolation layer gradually increases, causing the tensile device to be gradually compressed, resulting in increased friction. This could prevent the tensile device from sliding normally during an earthquake, leading to the failure of the seismic isolation system.
[0006] This utility model is achieved through the following technical solution:
[0007] A height-adjustable seismic isolation and tensile device, comprising:
[0008] Adjustment plate;
[0009] The lower slide rail plate is located above the adjustment plate and has a certain gap with the adjustment plate;
[0010] The upper slide rail plate is located above the lower slide rail plate and is arranged perpendicular to the lower slide rail plate.
[0011] The height adjustment component is located between the adjustment plate and the lower slide rail plate, and is used to adjust the height of the lower slide rail plate to ensure the normal sliding of the device.
[0012] As one of the preferred technical solutions, the height adjustment assembly includes an adjustment bolt rotatably mounted on the adjustment plate, and the adjustment bolt is threadedly connected to the lower plate of the slide rail.
[0013] As one of the preferred technical solutions, a knob is provided at one end of the adjusting bolt.
[0014] As one of the preferred technical solutions, multiple adjusting bolts are provided, and the multiple adjusting bolts are respectively distributed at the four corners of the adjusting plate.
[0015] As one of the preferred technical solutions, the upper slide rail is provided with a first slide rail along the length direction, the lower slide rail is provided with a second slide rail along the length direction, and a sliding module is installed between the upper slide rail and the lower slide rail, the sliding module being slidably connected to both the first and second slide rails.
[0016] As one of the preferred technical solutions, the sliding module has T-shaped grooves at both the top and bottom, and the two T-shaped grooves are respectively connected to the first slide rail and the second slide rail.
[0017] As one of the preferred technical solutions, a sleeve is installed between the lower anchor bar and the adjusting plate.
[0018] As one of the preferred technical solutions, the bottom of the adjusting plate is provided with a lower anchor bar, and the top of the upper plate of the slide rail is provided with an upper anchor bar.
[0019] As one of the preferred technical solutions, four upper anchor bars and four lower anchor bars are provided. The four upper anchor bars are distributed at the four corners of the upper plate of the slide rail, and the four lower anchor bars are distributed at the four corners of the adjusting plate.
[0020] As one of the preferred technical solutions, a steel shim is detachably provided at the gap between the adjusting plate and the lower slide rail plate.
[0021] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0022] 1. By adding an adjustment plate to the lower plate of the slide rail and connecting the lower plate of the slide rail and the adjustment plate through a height adjustment component, the height of the device is adjustable, effectively solving the problem of mismatch between the height of the device and the height of the seismic isolation layer; the height of the device can be precisely adjusted through the height adjustment component to adapt to errors that occur during construction.
[0023] 2. The reserved gap between the adjusting plate and the lower plate of the slide rail can reduce the pressure of the upper load on the device, avoid the increase of friction that would prevent the device from sliding normally, and improve the seismic performance of the building structure. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] The attached diagram shows the markings and corresponding component names:
[0027] 1-Upper anchor bar, 2-Upper slide rail plate, 3-Sliding module, 4-Second slide rail, 5-Lower slide rail plate, 6-Adjusting plate, 7-Adjusting bolt, 8-Sleeve, 9-Lower anchor bar, 10-First slide rail. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0029] This embodiment provides a height-adjustable seismic isolation and tensile strength device, such as... Figure 1 As shown, the device includes an adjusting plate 6, a sliding upper plate, a sliding lower plate, and a height adjustment assembly. The adjusting plate 6 is located at the bottom of the entire device, serving as a supporting base. The lower slide plate 5 is located above the adjusting plate 6, maintaining a certain gap between them. This gap allows the height of the lower slide plate 5 to be adjusted.
[0030] Specifically, in this embodiment, a steel shim is detachably installed at the gap between the adjusting plate 6 and the lower slide rail 5. The steel shim can be installed as needed. The steel shim fills the gap through its thickness and rigidity. In addition, the steel shim is removed after the overall casting of the vibration isolation layer is completed. That is, the steel shim ensures a certain gap between the adjusting plate 6 and the lower slide rail, while ensuring the normal operation of the adjusting bolt 7, adapting to different installation environments and usage requirements.
[0031] The upper slide rail plate 2 is positioned above the lower slide rail plate 5, and the lower slide rail plate 5 is arranged to slide vertically. It can be seen that both the upper slide rail plate 2 and the lower slide rail plate 5 can slide. In this example, the upper slide rail plate 2 slides laterally, and the lower slide rail plate 5 slides longitudinally. The upper slide rail plate 2 and the lower slide rail plate 5 slide in different directions to ensure the vibration isolation function of the tensile device.
[0032] A height adjustment assembly is positioned between the adjustment plate 6 and the lower slide rail plate 5 to adjust the height of the lower slide rail plate 5, ensuring the normal sliding of the device. Specifically, the height adjustment assembly includes adjustment bolts 7. The adjustment bolts 7 are rotatably mounted on the adjustment plate 6 and threadedly connected to the lower slide rail plate 5 via screw holes. By rotating the adjustment bolts 7, the lower slide rail plate 5 moves, thus controlling its height. In this embodiment, four adjustment bolts 7 are provided, distributed at the four corners of the adjustment plate 6. It should be noted that because the lower slide rail plate 5 needs to bear heavy loads, adjusting each corner adjustment bolt 7 individually ensures the load-bearing capacity of the lower slide rail plate 5, thereby ensuring its slow downward movement.
[0033] The bottom of the adjusting plate 6 is provided with lower anchor bars 9, and the top of the upper slide rail plate 2 is provided with upper anchor bars 1. There are four upper anchor bars 1 and four lower anchor bars 9. The four upper anchor bars 1 are distributed at the four corners of the upper slide rail plate 2, and the four lower anchor bars 9 are distributed at the four corners of the adjusting plate 6. It should be noted that the number of lower anchor bars 9 in this embodiment includes, but is not limited to, four. These anchor bars are used to firmly connect the device to the building structure, ensuring that the device can effectively transmit and disperse seismic forces. They are also used to connect seismic-resistant components (such as dampers and supports), reducing structural vibration through energy dissipation mechanisms and improving overall seismic performance.
[0034] Meanwhile, a sleeve 8 is installed between the lower anchor bar 9 and the adjusting plate 6. On the one hand, the sleeve 8 serves as a temporary support for the anchor bar, ensuring it maintains its correct position during concrete pouring or component installation, preventing displacement or tilting. On the other hand, the sleeve 8 increases the contact area between the anchor bar and the substrate, resulting in a more uniform stress distribution and reducing damage caused by localized stress concentration. The sleeve 8 provides additional connection strength and stability, while also facilitating installation and disassembly.
[0035] Furthermore, a knob is provided at one end of the adjusting bolt 7, allowing the operator to manually rotate the knob to adjust the height of the lower slide rail plate 5. The adjusting bolt 7 is located on one side of the adjusting plate 6, ensuring that the lower slide rail plate 5 remains stable during adjustment and preventing tilting or instability caused by single-point force.
[0036] The upper slide rail 2 is provided with a first slide rail 10 along its length, and the lower slide rail 5 is provided with a second slide rail 4 along its length. A sliding module 3 is installed between the upper slide rail 2 and the lower slide rail 5, and the sliding module 3 is slidably connected to both the first slide rail 10 and the second slide rail 4. On the one hand, this design allows both the upper slide rail 2 and the lower slide rail 5 to slide relative to the sliding module 3, realizing the lateral and longitudinal sliding of the tensile device, thereby enhancing the seismic isolation function. On the other hand, T-shaped grooves are provided at the top and bottom of the sliding module 3, and the two T-shaped grooves are respectively connected to the first slide rail 10 and the second slide rail 4. The design of the T-shaped grooves increases the stability and load-bearing capacity of the sliding connection, ensuring that the sliding part will not detach from the track under the action of earthquakes or other external forces.
[0037] The height-adjustable seismic isolation and tensile device in this embodiment allows for gradual adjustment of the height of the lower slide rail plate 5 using various adjusting bolts 7, ensuring the normal operation of the slide rail system. The sliding module 3 between the upper slide rail plate 2 and the lower slide rail plate 5, through the cooperation of the T-slot with the slide rail, achieves stable lateral and longitudinal sliding functions, effectively absorbing and dispersing seismic energy. The upper and lower anchor bars 9 ensure a secure connection of the device to the building structure, forming a complete seismic isolation system. The entire device is compact, easy to adjust, and simple to install, effectively improving the seismic performance of buildings.
[0038] The specific working process of this utility model:
[0039] During the fabrication of the reinforcement in the lower slab of the seismic isolation layer, the adjusting plate 6, sleeve 8, and lower anchor bar 9 are installed. Then, the lower concrete of the seismic isolation layer is poured. After the concrete pouring is complete, the lower slide rail plate 5, sliding module 3, upper slide rail plate 2, and upper anchor bar 1 are installed. During installation, a gap is left between the adjusting plate 6 and the lower slide rail plate 5, which can be supported by temporary steel shims. After the entire device is installed, the upper concrete of the seismic isolation layer is poured. After the entire seismic isolation layer is poured, the temporary steel shims between the adjusting plate 6 and the lower slide rail plate 5 are removed. At this point, the tensile device installation is complete.
[0040] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A height-adjustable seismic isolation and tensile strength device, characterized in that, include: Adjustment plate; The lower slide rail plate is located above the adjustment plate and has a certain gap with the adjustment plate; The upper slide rail plate is positioned above the lower slide rail plate and perpendicular to it, and is slidably arranged. The height adjustment component is located between the adjustment plate and the lower slide rail plate, and is used to adjust the height of the lower slide rail plate to ensure the normal sliding of the device.
2. The height-adjustable seismic isolation and tensile device according to claim 1, characterized in that, The height adjustment assembly includes an adjustment bolt rotatably mounted on an adjustment plate, the adjustment bolt being threadedly connected to the lower plate of the slide rail.
3. The height-adjustable seismic isolation and tensile device according to claim 2, characterized in that, A knob is provided at one end of the adjusting bolt.
4. The height-adjustable seismic isolation and tensile device according to claim 2, characterized in that, The adjustment bolts are provided in multiple locations, and the multiple adjustment bolts are respectively distributed at the four corners of the adjustment plate.
5. The height-adjustable seismic isolation and tensile device according to claim 1, characterized in that, The upper slide rail is provided with a first slide rail along its length, and the lower slide rail is provided with a second slide rail along its length. A sliding module is installed between the upper slide rail and the lower slide rail, and the sliding module is slidably connected to both the first and second slide rails.
6. The height-adjustable seismic isolation and tensile device according to claim 5, characterized in that, The sliding module has T-shaped grooves at the top and bottom, and the two T-shaped grooves are respectively connected to the first slide rail and the second slide rail.
7. The height-adjustable seismic isolation and tensile device according to claim 1, characterized in that, A sleeve is installed between the lower anchor bar and the adjusting plate.
8. The height-adjustable seismic isolation and tensile device according to claim 1, characterized in that, The bottom of the adjusting plate is provided with a lower anchor bar, and the top of the upper plate of the slide rail is provided with an upper anchor bar.
9. The height-adjustable seismic isolation and tensile device according to claim 8, characterized in that, There are four upper anchor bars and four lower anchor bars. The four upper anchor bars are distributed at the four corners of the upper plate of the slide rail, and the four lower anchor bars are distributed at the four corners of the adjusting plate.
10. The height-adjustable seismic isolation and tensile device according to claim 1, characterized in that, A steel shim is detachably installed at the gap between the adjusting plate and the lower slide rail plate.