Over-rotation-prevention rotating and swinging separation double-curved-surface support
By designing a hyperbolic support for anti-overturning and swinging separation in the bridge support, the coordination between the limit part and the rotating body is used to limit the rotation and movement range of the rotating body, the falling caused by excessive displacement of the bridge support during earthquakes is solved. The beam problem has achieved safe operation of the bridge.
Patent Information
- Application Number
- CN202421243834.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Due to the difference between theoretically calculated displacement and actual displacement in earthquakes, the relative displacement between the bridge piers and the beam body is too large, which is prone to falling beams, affecting the operational safety of the bridge.
A hyperbolic support is designed to prevent overturning and swinging separation. By setting the first limiting part and the second limiting part to rotate and cooperate with the rotating body, the rotation range of the rotating body is limited in the radial direction of the hyperbolic support. , avoid collisions and falling beams caused by excessive rotation angle of the rotating body.
It effectively limits the rotation and movement range of the rotating body, prevents falling beams, ensures the operation safety of the bridge, and achieves the dual stop effect through the installation of stops.
Smart Images
Figure CN222477209U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge bearings, and in particular relates to an over-rotation and swing-separation hyperbolic bearing. Background Art
[0002] Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. They can reliably transfer the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge, and are important force transmission devices of the bridge.
[0003] In the actual operation of bridges, since the theoretical calculated displacement of bridges is often different from the actual displacement value, especially for bearings with seismic isolation functions, the uncertainty brought by earthquakes is destined to make the bearings unable to rely entirely on theoretical calculations, resulting in excessive relative displacement between the piers and the beams due to earthquakes during the service of the bearings, and the beams slide out of the displacement range set by the bearings, causing beams to fall, affecting the operational safety of the bridge. Utility Model Content
[0004] The purpose of the present application is to provide an anti-over-rotation and swing-separation hyperboloid support to solve the above-mentioned technical problems existing in the prior art.
[0005] This application is implemented as follows:
[0006] The present application provides an anti-over-rotation and swing separation hyperbolic support, comprising a first support, a rotating body and a second support which are arranged in sequence and overlap each other; the first support has a first limiting portion, the second support has a second limiting portion, and the first limiting portion and the second limiting portion are both extended along the circumference of the rotating body; the first side of the rotating body is rotatably arranged in an enclosed space of the first limiting portion, and the second side of the rotating body is rotatably arranged in an enclosed space of the second limiting portion, the first limiting portion and the second limiting portion can cooperate with the rotating body in a radial direction of the hyperbolic support, and the radial size of the enclosed space of the first limiting portion is greater than the radial size of the enclosed space of the second limiting portion; at least one of the first support and the second support is fixed with a stopper, and the first support and the second support are stopped and limited in the radial direction of the hyperbolic support by the stopper.
[0007] The technical solution adopted in this application can achieve the following beneficial effects:
[0008] In the utility model, by setting the first limiting part and the second limiting part to cooperate with the rotating body, the rotation range of the rotating body is limited in the radial direction of the hyperboloid support, so as to avoid the situation that the first support and the second support touch each other due to the rotating body's excessive rotation angle; at the same time, the first limiting part and the second limiting part can also limit the moving range of the rotating body, preventing the rotating body from passing the first limiting part or the second limiting part, and preventing the beam from falling. At the same time, the radial size of the enclosed space of the first limiting part is greater than the radial size of the enclosed space of the second limiting part, so that the first limiting part and the second limiting part are at least partially misaligned, which is convenient for installing the stopper, so that the stopper cooperates with the limiting part to achieve a double stopping effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0010] Figure 1 It is a schematic diagram of the use of bridge bearings in the related art;
[0011] Figure 2 is a partial cross-sectional view of a support provided by some embodiments of the utility model;
[0012] Figure 3 yes Figure 2 Detailed view of point A in the figure;
[0013] Figure 4 It is a schematic diagram of the disassembly of the support provided in some embodiments of the utility model;
[0014] Figure 5 It is a schematic diagram of the anti-seismic process of the support provided by some embodiments of the utility model;
[0015] Figure 6 It is a schematic diagram of a bidirectional support structure provided by some embodiments of the utility model;
[0016] Figure 7 It is a schematic diagram of a fixed support structure provided by some embodiments of the utility model;
[0017] Figure 8 It is a schematic diagram of a one-way support structure provided by some embodiments of the utility model.
[0018] In the figure: 10-upper support, 20-middle plate, 30-lower support, 100-first support, 110-first limiting portion, 200-rotating body, 210-first side, 211-first groove, 212-first wear-resistant layer, 220-second side, 221-second groove, 222-second wear-resistant layer, 300-second support, 310-second limiting portion, 400-stopper, 500-fastener, 510-pin, 520-bolt, 600-first sliding layer, 710-first anchoring sleeve, 720-second anchoring sleeve. DETAILED DESCRIPTION
[0019] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.
[0020] In the related technology, combined Figure 1 As shown, the upper support 10, the middle plate 20 and the lower support 30 are stacked in sequence. When an earthquake occurs, the middle plate 20 rotates and moves back and forth between the upper support 10 and the lower support 30, consuming energy through friction and cooperating to resist earthquakes. However, in the actual operation of the bridge, it is easy for the middle plate 20 to rotate too much, resulting in a collision between the upper support 10 and the lower support 30. After the upper support 10 and the lower support 30 collide with each other, the structure of the support will be damaged, affecting the normal use of the support. In addition, the middle plate 20 is also prone to excessive displacement, causing the upper support 10 to slide a large distance relative to the lower support 30, the center of gravity of the upper support 10 to shift, and the upper support 10 to fall, seriously affecting the safe operation of the bridge.
[0021] In this regard, some embodiments of the present application provide an anti-over-rotation swing separation hyperboloid support, combined with Figures 2 to 8 As shown, the hyperbolic support provided by the present application can prevent the two supports of the hyperbolic support from rotating too much, colliding or falling while resisting earthquakes.
[0022] Combination Figure 2As shown, the hyperbolic support provided in some embodiments of the present application includes a first support 100, a rotating body 200 and a second support 300 which are arranged in sequence and overlapped, and the rotating body 200 rotates and moves between the first support 100 and the second support 300, and the first support 100 and the second support 300 are used to connect between the upper structure and the lower structure of the beam body. The first support 100 has a first limiter 110, and the first limiter 110 is extended along the circumference of the rotating body 200. The second support 300 has a second limiter 310, and the second limiter 310 is extended along the circumference of the rotating body 200. The side of the rotating body 200 close to the first support 100 is the first side 210, and the side close to the second support 300 is the second side 220. The first side 210 of the rotating body 200 is rotatably arranged in the enclosed space formed by the first limiter 110. The second side 220 of the rotating body 200 is rotatably arranged in the enclosed space formed by the second limiter 310. Furthermore, the first limiting portion 110 and the second limiting portion 310 can both be limitedly matched with the rotating body 200 in the radial direction of the hyperbolic support. When the rotating body 200 rotates, the first limiting portion 110 and the second limiting portion 310 will limit the rotation range and movement range of the rotating body 200.
[0023] In some optional embodiments, the first support 100 is connected to the upper structure of the beam body, the second support 300 is connected to the lower structure of the beam body, and the rotating body 200 is rotatably arranged between the first support 100 and the second support 300. When the rotating body 200 rotates, it will drive the first support 100 to rotate together. The first limiting portion 110 and the second limiting portion 310 are used in conjunction with the rotating body 200 to limit the rotating body 200 to rotate in a relatively central area between the first support 100 and the second support 300, and limit the rotation angle of the rotating body 200 to a smaller range, so as to prevent the rotating body 200 from rotating to a position at the edge of the support. If the rotating body 200 rotates to a position at the edge of the second support 300, the rotation angle of the rotating body 200 is relatively large at this time, and the side of the second support 300 away from the rotating body 200 has no rotating body 200 to support the first support 100, so the first support 100 and the second support 300 may collide with each other, resulting in structural damage to the support, affecting the normal function of the hyperbolic support.
[0024] Furthermore, the first limiter 110 and the second limiter 310 can also cooperate with the rotating body 200 to avoid the situation of falling beams. Specifically, when an earthquake occurs, the rotating body 200 rotates on the second support 300, and the first support 100 rotates on the rotating body 200. The second limiter 310 limits the movement range of the rotating body 200 to prevent the rotating body 200 from separating from the second support 300. The first limiter 110 cooperates with the rotating body 200 to limit the movement range of the first support 100 to prevent the first support 100 from separating from the rotating body 200 and causing the situation of falling beams.
[0025] In some other optional embodiments, the first support 100 may be connected to the lower structure of the beam body, and the second support 300 may be connected to the upper structure of the beam body.
[0026] The radial dimensions of the space enclosed by the first limiting portion 110 and the second limiting portion 310 are different. In some embodiments, the radial dimension of the enclosed space of the first limiting portion 110 is greater than the radial dimension of the enclosed space of the second limiting portion 310, and at least one of the first support 100 and the second support 300 is fixed with a stopper 400, and the first support 100 and the second support 300 are stopped and limited in the radial direction of the hyperbolic support by the stopper 400. The first limiting portion 110 and the second limiting portion 310 are at least partially staggered so that there is extra space between the first support 100 and the second support 300 to install the stopper 400, and the stopper 400 can be installed in addition to the second support 300 when the stopper 400 is installed, and when the stopper 400 is cut off, the stopper 400 can fall off smoothly. The stopper 400 cooperates with the limiting portion, and the stopper 400 realizes the preliminary stopping effect, and the limiting portion realizes the subsequent stopping effect, and the two together realize double stopping of the rotating body 200.
[0027] According to the different installation positions of the stopper 400 on the first support 100 or the second support 300, the hyperboloid support is divided into several types. Figure 6 As shown, the first support 100 is not equipped with a stopper 400, and the first support 100 can move in the x-axis direction and the y-axis direction shown in the figure. The hyperboloid support is a bidirectional support. In the event of an earthquake, the rotating body 200, the first support 100 and the second support 300 rely on rolling friction energy dissipation to cooperate in earthquake resistance.
[0028] Reference Figure 7 As shown, the first support 100 is provided with a stopper 400 on its circumference. The first support 100 is immovable in both the x-axis direction and the y-axis direction. The hyperboloid support is a fixed support. When an earthquake occurs, the stopper 400 is sheared off first, which consumes part of the earthquake force, avoids the earthquake response excellence period, and reduces the earthquake force response of the upper structure, thereby achieving the purpose of shock absorption. Figure 5 As shown, after the lateral stopper 400 is sheared off, the shock-absorbing displacement is released. At this time, the fixed hyperbolic bearings become bidirectional bearings with limited displacement and cooperate in earthquake resistance because the stopper 400 in the constraint direction is sheared off.
[0029] Reference Figure 8As shown, a stopper 400 is provided in the x-axis direction of the first support 100 to limit the movement of the first support 100 in the x-axis direction, but the first support 100 can still move in the y-axis direction. The hyperboloid support is a one-way support. In the event of an earthquake, the stopper 400 will be sheared off only when the first support 100 moves in the x-axis direction. When the first support 100 moves in the y-axis direction, the stopper 400 will not block the movement of the first support 100.
[0030] At least one of the stopper 400 and its corresponding support is provided with a first sliding layer 600 on its opposite surface. Figure 3 and Figure 8 As shown, when the hyperboloid support is a one-way support, the stopper 400 is fixed on the first limiting portion 110, and the stopper 400 is fixed on the first support 100 along the Figure 8 When the first support 100 moves in the y-axis direction, friction occurs between the stopper 400 and the second support 300. Therefore, at least one of the surfaces opposite to the stopper 400 and the support corresponding to the stopper, that is, the surfaces corresponding to the stopper 400 and the second support 300, is provided with a first sliding layer 600 to reduce the friction between the stopper 400 and the second support 300, so as to ensure that the first support 100 can smoothly move along the y-axis direction. In specific implementation, the first sliding layer 600 can be provided on the surfaces corresponding to the stopper 400 and the second support 300. A stainless steel slide plate is provided on the stopper 400 to form the first sliding layer 600, and a copper-based slide bar is provided on the second support 300 to form the first sliding layer 600.
[0031] In some optional embodiments, the stopper 400 is fixed to the first limiting portion 110 of the first support 100, and the side wall of the stopper 400 close to the rotating body 200 and the side wall of the first limiting portion 110 close to the rotating body 200 are in the same plane. Figure 8 As shown, when the first support 100 moves along the illustrated y-axis direction, there is friction between the stop block 400 and the second support 300. If the stop block 400 is arranged to protrude toward the rotating body 200 in the radial direction of the hyperbolic support relative to the first limiting portion 110, the force arm of the stop block 400 increases. When the stop block 400 is subjected to equal friction force, the connection position between the stop block 400 and the first support 100 will be subject to greater resistance, affecting the connection stability between the stop block 400 and the first support 100.
[0032] When the stopper 400 is connected to the first support 100 or the second support 300, it is connected by a fastener 500. In some optional embodiments, the fastener 500 includes a pin 510 and a bolt 520. Figure 3As shown, the pin 510 is located on the side of the bolt 520 away from the rotating body 200. There is no assembly gap between the pin 510 and the stopper 400 and the support, so the stopper 400 can be positioned in the radial direction, thereby improving the installation accuracy of the stopper 400.
[0033] In some optional embodiments, the width of the first limiting portion 110 is greater than the width of the second limiting portion 310 , thereby improving the structural strength of the first limiting portion 110 .
[0034] In some embodiments of the present application, the first support 100 is fixedly connected to the upper structure of the beam body through the first anchor sleeve 710, and the first support 100 drives the upper structure of the beam body to move together when moving; the second support 300 is fixedly connected to the lower structure of the beam body through the second anchor sleeve 720. In the hyperbolic support, only the positions of the rotating body 200 and the first support 100 will change, and the position of the second support 300 remains unchanged.
[0035] The first limiting portion 110 is an annular structure or a plurality of first limiting blocks arranged along the circumference of the rotating body 200 ; similarly, the second limiting portion 310 is an annular structure or a plurality of second limiting blocks arranged along the circumference of the rotating body 200 .
[0036] In some optional embodiments, the first side 210 of the rotating body 200 is provided with a first wear-resistant layer 212, and the first wear-resistant layer 212 is rotatably matched with the first support 100; and / or, the second side 220 of the rotating body 200 is provided with a second wear-resistant layer 222, and the second wear-resistant layer 222 is rotatably matched with the second support 300. The first wear-resistant layer 212 and the second wear-resistant layer 222 are used to improve the wear resistance of the rotating body 200, and silicone grease is applied between the second wear-resistant layer and the second support 300 to form a sliding surface, thereby reducing friction resistance and avoiding friction damage to the surfaces of the rotating body 200 and the second support 300 that are in contact with each other. In specific implementation, combined with Figure 4 As shown, the first side 210 of the rotating body 200 is provided with a first groove 211 in which a first wear-resistant layer 212 is installed, and the second side 220 of the rotating body 200 is provided with a second groove 221 in which a second wear-resistant layer 222 is installed.
[0037] The surface of the first support 100 that contacts the first wear-resistant layer 212 is provided with a second sliding layer; the surface of the second support 300 that contacts the second wear-resistant layer 222 is provided with a third sliding layer. The second sliding layer and the third sliding layer are chrome-plated layers or nickel-phosphorus alloy layers. The structural strength of the surface of the first support 100 and the surface of the second support 300 is improved, and the friction coefficient is reduced.
[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-over-rotation and swing-separation hyperboloid support, characterized in that: It comprises a first support (100), a rotating body (200) and a second support (300) which are arranged in sequence and overlapped; The first support (100) has a first limiting portion (110), and the second support (300) has a second limiting portion (310), and the first limiting portion (110) and the second limiting portion (310) are both extended along the circumference of the rotating body (200); The first side (210) of the rotating body (200) is rotatably disposed in the enclosed space of the first limiting portion (110), and the second side (220) of the rotating body (200) is rotatably disposed in the enclosed space of the second limiting portion (310). The first limiting portion (110) and the second limiting portion (310) can be limitedly matched with the rotating body (200) in the radial direction of the hyperbolic support, and the radial dimension of the enclosed space of the first limiting portion (110) is greater than the radial dimension of the enclosed space of the second limiting portion (310). At least one of the first support (100) and the second support (300) is fixed with a stopper (400), and the first support (100) and the second support (300) are stopped and limited in the radial direction of the hyperbolic support by the stopper (400).
2. The anti-over-rotation and swing-separation hyperboloid support according to claim 1, characterized in that: At least one of the stopper (400) and the corresponding support against which it abuts is provided with a first sliding layer (600) on its opposite surface.
3. The anti-over-rotation and swing-separation hyperboloid support according to claim 1, characterized in that: The stopper (400) is fixed to the first limiting portion (110) of the first support (100), and the side wall of the stopper (400) close to the rotating body (200) and the side wall of the first limiting portion (110) close to the rotating body (200) are in the same plane.
4. The anti-over-rotation and swing-separation hyperboloid support according to any one of claims 1 to 3, characterized in that: At least one of the first support (100) and the second support (300) is fixedly connected to the stopper (400) via a fastener (500); The fastener (500) includes a pin (510) and a bolt (520), wherein the pin (510) is located on a side of the bolt (520) away from the rotating body (200).
5. The anti-over-rotation and swing-separation hyperboloid support according to any one of claims 1 to 3, characterized in that: The width of the first limiting portion (110) is greater than the width of the second limiting portion (310).
6. The anti-over-rotation and swing-separation hyperboloid support according to any one of claims 1 to 3, characterized in that: The first support (100) is fixedly connected to the upper structure of the beam body via a first anchoring sleeve (710); The second support (300) is fixedly connected to the lower structure of the beam body via a second anchoring sleeve (720).
7. The anti-over-rotation and swing-separation hyperboloid support according to any one of claims 1 to 3, characterized in that: The first limiting portion (110) is an annular structure or a plurality of first limiting blocks arranged along the circumference of the rotating body (200); And / or, the second limiting portion (310) is an annular structure or a plurality of second limiting blocks arranged along the circumference of the rotating body (200).
8. The anti-over-rotation and swing-separation hyperboloid support according to any one of claims 1 to 3, characterized in that: A first wear-resistant layer (212) is provided on the first side (210) of the rotating body (200), and the first wear-resistant layer (212) is rotatably matched with the first support (100); And / or, the second side (220) of the rotating body (200) is provided with a second wear-resistant layer (222), and the second wear-resistant layer (222) is rotationally matched with the second support (300).
9. The anti-over-rotation and swing-separation hyperboloid support according to claim 8, characterized in that: The surface of the first support (100) in contact with the first wear-resistant layer (212) is provided with a second sliding layer; And / or, the surface of the second support (300) in contact with the second wear-resistant layer (222) is provided with a third sliding layer.
10. The anti-over-rotation and swing-separation hyperboloid support according to claim 9, characterized in that: The second sliding layer and the third sliding layer are chrome-plated layers or nickel-phosphorus alloy layers.