Horizontal displacement detection structure for shock insulation support

By designing a combination structure of an indicator ruler and a comparison ruler on the seismic isolation bearing, the problem of horizontal displacement monitoring during construction was solved, accurate displacement measurement was achieved, and the seismic isolation effect and structural safety of the seismic isolation bearing were improved.

CN224151599UActive Publication Date: 2026-04-21NO 3 ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing seismic isolation bearings cannot monitor horizontal displacement in real time during construction, resulting in irreversible plastic deformation, which affects the seismic isolation effect and the overall integrity and safety of the structure.

Method used

Design a horizontal displacement detection structure for seismic isolation bearings, including an indicator ruler and a comparison ruler, which are installed on the upper and lower supports respectively. The horizontal displacement is accurately measured through the indicator mark and scale. The installation is aided by a leveling rod to ensure accuracy. The position of the indicator mark is adjusted by a guide rod and an adjusting screw to reduce reading errors.

Benefits of technology

It enables precise measurement of the horizontal displacement of the upper and lower supports, ensuring accurate readings, reducing structural damage caused by displacement during construction, and improving the seismic isolation effect and the overall structural safety.

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Abstract

The utility model relates to the technical field of displacement detection of building construction, and particularly discloses a horizontal displacement detection structure of a shock insulation support, which comprises an indicating ruler and a comparison ruler, the indicating ruler comprises a mounting base body and an indicator, the indicator is arranged on the mounting base body and points to a lower buttress, and the mounting base body is fixed at the lower part of the outer side of an upper buttress; the comparison ruler is fixed to the upper portion of the outer side of the lower buttress, and scales corresponding to the indicators are arranged on the comparison ruler. The beneficial effects of the technical scheme are that the indicating ruler and the comparison ruler are respectively installed on the upper buttress and the lower buttress, when displacement occurs between the upper buttress and the lower buttress, the indicating ruler can move relative to the comparison ruler, and then the displacement amount of the lower buttress and the displacement amount of the lower buttress can be accurately obtained. The indicating rulers and the comparison rulers can be installed in the X direction and the Y direction of the upper buttress and the lower buttress in pairs, then displacement in the two directions is obtained, and the displacement can assist technicians in judging the horizontal displacement condition of the shock insulation support.
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Description

Technical Field

[0001] This utility model relates to the field of displacement detection technology, specifically to a horizontal displacement detection structure for seismic isolation bearings. Background Technology

[0002] In addition to withstanding horizontal displacement changes during earthquakes, seismic isolation bearings must also withstand vertical pressure from the superstructure and horizontal displacements caused by uneven construction loads (such as staged concrete pouring). The high-damping rubber seismic isolation bearings such as LNR and LRB used in this project have limited horizontal deformation; exceeding a certain limit results in plastic deformation, making it impossible to restore the original vertical stress condition, thus affecting the seismic isolation effect and the overall integrity of surrounding seismic isolation bearings. Furthermore, seismic isolation bearings with excessive horizontal displacement will have a reduced height, leading to a drop in the elevation of local upper piers and frame columns, causing concrete cracks, and affecting the integrity and safety of the superstructure.

[0003] Due to the enormous superstructure load and the uncontrollable impact of earthquakes, superstructure loads, and uneven construction loads on the seismic isolation bearings (the first two have relatively minor or low probability of occurrence, so the construction impact is the primary consideration), real-time monitoring of the horizontal displacement of the seismic isolation bearings is necessary during construction. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a horizontal displacement detection structure for seismic isolation bearings, which can accurately measure the horizontal displacement between upper and lower supports.

[0005] The present invention provides a technical solution: a horizontal displacement detection structure for seismic isolation bearings, comprising:

[0006] The indicator ruler includes a mounting base and an indicator mark. The indicator mark is arranged at the lower part of the mounting base and points to the lower support. The mounting base is fixed to the lower part of the outer side of the upper support.

[0007] The comparison ruler is fixed to the upper part of the outer side of the lower support pier, and the comparison ruler is set with scales corresponding to the indicator marks.

[0008] The beneficial effects of the above technical solution are as follows: the indicator ruler and the comparison ruler are installed on the upper and lower supports respectively. When displacement occurs between the upper and lower supports, the indicator ruler can move relative to the comparison ruler, thereby accurately obtaining the displacement of the lower supports. The indicator ruler and the comparison ruler can also be installed in pairs on the upper and lower supports in the X and Y directions to obtain the displacement in both directions.

[0009] Furthermore, a leveling gauge is also installed on the mounting base.

[0010] Furthermore, the indicator can be vertically moved and connected to the mounting base.

[0011] Furthermore, two spaced guide rods are provided between the indicator and the mounting base. The guide rods are vertically connected to the mounting base, and the indicator moves relative to the mounting base through the guide rods.

[0012] Furthermore, it also includes an adjusting screw, the first end of which is rotatably connected to the mounting base without disengaging, and the second end which is protruded by an indicator and has a handle, the indicator being screwed to the adjusting screw.

[0013] Furthermore, the indicator is positioned between the two guide rods. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is an installation diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a top view of the indicator ruler in an embodiment of this utility model;

[0017] Figure 3 This is a front view of the indicator ruler in an embodiment of this utility model.

[0018] Reference numerals: lower support 10, upper support 20, comparison ruler 100, scale 110, mounting base 200, leveling rod 210, indicator 220, guide rod 221, adjusting screw 222, handle 223. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] like Figure 1-3As shown, this embodiment provides a horizontal displacement detection structure for a seismic isolation bearing, including an indicator ruler and a comparison ruler 100. The indicator ruler includes a mounting base 200 and an indicator mark 220. The indicator mark 220 is arranged at the lower part of the mounting base 200 and points towards the lower support 10. The mounting base 200 is fixed to the lower part of the outer side of the upper support 20. The comparison ruler 100 is fixed to the upper part of the outer side of the lower support 10, and the comparison ruler 100 is provided with a scale 110 corresponding to the indicator mark 220. To facilitate the installation of the indicator ruler and the comparison ruler 100 on the upper and lower supports 10, two fixing holes are provided on both the indicator ruler and the comparison ruler 100. The indicator ruler is fixed to the surface of the upper support 20 and the comparison ruler 100 is fixed to the surface of the lower support 10 by bolts. During installation, the indicator ruler and the comparison ruler 100 need to be aligned vertically. The middle of the scale 110 of the comparison ruler 100 is the zero scale 110, and the values ​​increase symmetrically to both sides. The aligned indicator 220 is aligned with the zero mark 110 of the comparator 100 on the lower support 10. When displacement occurs, the movement of the indicator 220 from the zero mark to the left or right of the mark 110 can be accurately read. The scale is in millimeters, meaning the displacement reading is accurate to the millimeter level.

[0022] The indicator ruler and the comparison ruler 100 are respectively installed on the upper support 20 and the lower support 10. When displacement occurs between the upper support 20 and the lower support 10, the indicator ruler can move relative to the comparison ruler 100, thereby accurately obtaining the displacement of the lower support 10. The indicator ruler and the comparison ruler 100 can also be installed in pairs in the X and Y directions of the upper and lower support 10 to obtain the displacement in both directions. The planes on which the two comparison rulers 100 installed in the X and Y directions are located are perpendicular to each other. The comparison ruler 100 and the displacement ruler installed in the X direction can measure the displacement of the upper and lower support 10 in the X direction, and the comparison ruler 100 and the displacement ruler installed in the Y direction can measure the displacement of the upper and lower support 10 in the X direction. Specifically, when both the upper support 20 and the lower support 10 have rectangular cross sections, the comparison rulers 100 and the displacement rulers in both directions can be installed on two adjacent sides of the upper and lower support 10. Correspondingly, the mounting base 200 and the comparison ruler 100 can be flat. When the upper support 20 and the lower support 10 have circular cross-sections, the comparison ruler 100 and displacement ruler in both directions need to be installed at a 90-degree central angle. Correspondingly, the mounting base 200 and the comparison ruler 100 can also be arc-shaped plates to fit the circular cross-section of the upper and lower supports.

[0023] In some embodiments, a leveling rod 210, which is a bubble level, is also provided on the mounting base 200. The leveling rod 210 assists in the installation of the mounting base 200, enabling the mounting base 200 to remain level, thereby ensuring the accuracy of the readings of the indicator 220 on the comparison rod 100.

[0024] In some embodiments, the indicator 220 is vertically movable and connected to the mounting base 200. When relative displacement occurs between the upper and lower supports 10, it is often a combined movement in both the X and Y directions. When the upper and lower supports 10 shift in the X direction, it causes the indicator ruler and the comparison ruler 100 in the Y direction to shift in the X direction, potentially causing them to move away from each other. Consequently, the indicator 220 and the comparison ruler 100 also move away from each other. This distancing of the indicator 220 and the comparison ruler 100 increases reading error. To avoid reading errors, the indicator 220 and the mounting base 200 are configured with an adjustable spacing. When the indicator 220 and the comparison ruler 100 move away from each other, the indicator 220 can be moved vertically to the mounting base 200, bringing it closer to the comparison ruler 100 for accurate readings, without altering the reading. Similarly, when the upper and lower supports 10 are misaligned in the Y direction, the indicator ruler and comparison ruler 100 in the X direction will be displaced in the Y direction. Adjusting the position of the indicator 220 can still compensate for the impact of this displacement.

[0025] In some embodiments, two spaced-apart guide rods 221 are provided between the indicator 220 and the mounting base 200. The guide rods 221 are perpendicularly connected to the mounting base 200, and the indicator 220 can move relative to the mounting base 200 via the guide rods 221. The guide rods 221 can be fixed to the mounting base 200. The indicator 220 is provided with a sliding hole that slides with the guide rod 221, allowing the indicator 220 to slide along the guide rod 221 to adjust the distance between it and the mounting base 200. A stop is also provided at the top of the guide rod 221 to prevent the indicator 220 from detaching from the guide rod 221. To ensure that the indicator 220 and the guide rod 221 are perpendicular, a sleeve can be provided on the side of the indicator 220 facing away from the mounting base 200 corresponding to the sliding hole. The sleeve increases the engagement length between the indicator 220 and the guide rod 221, ensuring that the indicator 220 and the guide rod 221 do not deflect.

[0026] In some embodiments, an adjusting screw 222 is further included. The first end of the adjusting screw 222 is rotatably connected to the mounting base 200 without disengaging, and the second end extends through an indicator 220 and is provided with a handle 223. The indicator 220 is screwed onto the adjusting screw 222. Specifically, a threaded hole matching the adjusting screw 222 is provided in the middle of the indicator 220. A threaded sleeve flush with the sleeve is also provided at the position corresponding to the threaded hole on the indicator 220. The threaded sleeve increases the screwing distance between the adjusting screw 222 and the indicator 220, thereby increasing the friction between the adjusting screw 222 and the indicator 220. The adjusting screw 222 can drive the indicator 220 to move along the guide rod 221. After moving into position, the screwed adjusting screw 222 and the indicator 220 have a large frictional locking force, allowing the indicator 220 to remain in its current position.

[0027] In some embodiments, the indicator 220 is disposed between two guide rods 221. Disposing it between the two guide rods 221 makes the movement of the indicator 220 smoother and the force more even.

[0028] In the description of this application, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A structure for detecting the horizontal displacement of a seismic isolation bearing, characterized in that, include: The indicator ruler includes a mounting base (200) and an indicator (220), the indicator (220) being arranged at the lower part of the mounting base (200) and pointing towards the lower support (10), the mounting base (200) being fixed to the lower part of the outer side of the upper support (20); A comparison ruler (100) is fixed to the upper part of the outer side of the lower support (10), and the comparison ruler (100) is provided with a scale (110) corresponding to the indicator (220).

2. The horizontal displacement detection structure of the seismic isolation support according to claim 1, wherein A leveling rod (210) is also provided on the mounting base (200).

3. The horizontal displacement detection structure of the seismic isolation bearing according to claim 1, wherein The indicator (220) is vertically movable and connected to the mounting base (200).

4. The horizontal displacement detection structure of claim 3, wherein Two spaced guide rods (221) are provided between the indicator (220) and the mounting base (200). The guide rods (221) are perpendicularly connected to the mounting base (200), and the indicator (220) moves relative to the mounting base (200) through the guide rods (221).

5. The horizontal displacement detection structure of claim 4, wherein It also includes an adjusting screw (222), the first end of which is rotatably connected to the mounting base (200) without disengaging, and the second end is protruding from the indicator (220) and provided with a handle (223), the indicator (220) being screwed to the adjusting screw (222).

6. The horizontal displacement detection structure of claim 5, wherein The indicator (220) is positioned between the two guide rods (221).