A viscous damping wall device for bridges

Abstract

The utility model discloses a kind of viscous damping wall devices for bridge, belong to damping equipment technical field, comprising: movable member is movably inserted in damping wall, damping cavity is provided in the damping wall, damping liquid is provided in the damping cavity, the movable member sliding connection with damping cavity can be with damping liquid and shear motion occurs, the movable member includes the fixed connection of fixed part with bridge superstructure, the fixed part bottom end sliding connection has the plugboard connecting piece that can be along bridge transverse sliding, plugboard connecting piece is fixedly connected with plugboard, the plugboard sliding connection is in damping cavity.The utility model is converted into heat energy dissipation by the internal friction effect between fluid molecules, and the mechanical vibration energy of structure is continuously converted into heat energy dissipation, to effectively reduce the dynamic response of structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of damping equipment, specifically relating to a viscous damping wall device for bridges. Background Technology

[0002] With the rapid development of my country's economy in recent years, various types of large-span and large-volume bridges have been built to meet the demand. During normal traffic, the bridge structure is subjected to the effects of multiple loads, and dampers need to be installed between the abutment and the structure above it to dissipate energy.

[0003] Traditional cylindrical dampers can only cope with vibrations in one direction; however, bridges are subjected to multi-directional and complex vibrations when faced with swaying from passing vehicles, wind, or earthquakes.

[0004] Therefore, it is necessary to propose a viscous damping wall device for bridges to solve the above problems. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a viscous damping wall device for bridges, which solves the problem of difficulty in dealing with multi-directional vibration in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a viscous damping wall device for bridges, comprising: a movable component movably inserted into a damping wall; a damping cavity is provided within the damping wall; a damping fluid is provided within the damping cavity; the movable component is slidably connected to the damping cavity and is capable of shearing motion with the damping fluid; the movable component includes a fixing member fixedly connected to the superstructure of the bridge; a sliding plate connector is slidably connected to the bottom end of the fixing member and is capable of sliding laterally along the bridge; a sliding plate is fixedly connected to the sliding plate connector and is slidably connected within the damping cavity.

[0008] Furthermore, the insert plate connector is provided with a first sliding groove and a second sliding groove on the side near the fixing member and the side of the fixing member near the insert plate connector, respectively. The first sliding groove and the second sliding groove are closed to form a limiting sliding groove, and a slider is inserted into the limiting sliding groove.

[0009] Furthermore, the insert plate connector is provided with a groove to make the insert plate connector concave. Three insert plates are fixedly connected to the insert plate connector. Two of the three insert plates are fixedly connected to the opposite side walls of the insert plate connector, and the other insert plate is inserted and fixed in the groove.

[0010] Furthermore, the insert plate connector has multiple through holes arranged side by side, and the insert plate has connection holes that correspond one-to-one with the through holes. The insert plate is fixed to the insert plate connector by means of a shaft pin passing through the connection holes and the through holes.

[0011] Furthermore, the through hole is configured as a threaded hole, the shaft pin is threadedly connected to the through hole, and nuts are threadedly connected to both ends of the shaft pin extending out of the through hole so that the two insert plates located on opposite sides of the insert plate connector are clamped to the insert plate connector.

[0012] Furthermore, the first and second slides are symmetrically arranged, the first slide is trapezoidal, and the short diameter end of the trapezoid is set as the opening of the first slide.

[0013] Furthermore, the through hole is provided through the groove.

[0014] The beneficial effects of this invention are as follows: through the internal friction between fluid molecules, the mechanical vibration energy of the structure is continuously converted into heat energy for dissipation, thereby effectively reducing the dynamic response of the structure. The unique advantage of the viscous damping wall lies in its pure damping characteristics, meaning it provides almost no additional stiffness during energy dissipation, allowing the structure to naturally recover after vibration and avoiding residual deformation. Simultaneously, this device has broadband energy dissipation characteristics, adapting to vibration excitations of different frequencies and exhibiting stable damping performance under both earthquake and wind-induced vibrations. This energy dissipation mechanism not only significantly reduces the displacement and acceleration response of the structure but also avoids the abrupt stiffness changes that may occur with traditional reinforcement methods, providing an efficient and reliable vibration control solution for engineering structures.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the interaction between the movable component and the damping wall in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the movable component in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the insert connector according to an embodiment of the present utility model.

[0020] The following components are marked in the attached diagram: movable component 1, fixing component 101, insert plate connector 102, insert plate 103, limiting slide groove 104, slider 105, groove 106, through hole 107, shaft pin 108, damping wall 2, damping cavity 201. Detailed Implementation

[0021] like Figures 1-3 As shown, this utility model provides a viscous damping wall device for bridges, comprising: a movable component 1, which is movably inserted into a damping wall 2, wherein a damping cavity 201 is provided in the damping wall 2, and a damping fluid is provided in the damping cavity 201; the movable component 1 is slidably connected in the damping cavity 201 and undergoes shearing motion with the damping fluid; the movable component 1 includes a fixing member 101 fixedly connected to the superstructure of the bridge; a sliding plate connector 102 capable of sliding laterally along the bridge is slidably connected to the bottom end of the fixing member 101; a sliding plate 103 is fixedly connected to the sliding plate connector 102; and the sliding plate 103 is slidably connected in the damping cavity 201.

[0022] In this scheme, when the structure is subjected to dynamic loads such as earthquakes or wind vibrations, the two ends of the damping wall 2 connected to the structure generate relative displacement, driving the movable component 1 inside the damping wall 2 to move in the damping fluid. During this process, the relative motion between the movable component 1 and the fluid generates viscous resistance, which has a nonlinear relationship with the motion velocity. Through the internal friction between fluid molecules, the mechanical vibration energy of the structure is continuously converted into heat energy for dissipation, thereby effectively reducing the dynamic response of the structure. Moreover, the insert plate connector 102 can slide laterally along the bridge, and when the lateral displacement of the bridge is released, it will not cause the insert plate 103 to move, which can adapt to vibration excitation of different frequencies and exhibit stable damping performance under earthquakes and wind vibrations. This energy dissipation mechanism not only significantly reduces the displacement and acceleration response of the structure, but also avoids the stiffness abruptness problem that may be caused by traditional reinforcement methods, providing an efficient and reliable vibration control solution for engineering structures. The unique advantage of the viscous damping wall lies in its pure damping characteristics, that is, it provides almost no additional stiffness during the energy dissipation process, which allows the structure to naturally recover after vibration and avoid residual deformation.

[0023] In one embodiment of the present invention, the insert plate connector 102 near the fixing member 101 and the fixing member 101 near the insert plate connector 102 are respectively provided with a first sliding groove and a second sliding groove. The first sliding groove and the second sliding groove are closed to form a limiting sliding groove 104, and a slider 105 is inserted into the limiting sliding groove 104.

[0024] In this scheme, the limiting groove 104 and the slider 105 work together to release the lateral displacement of the bridge without causing the insert plate 103 to move. When the bridge undergoes longitudinal displacement, the groove 104 and the slider 105 fit together to transfer the load.

[0025] In one embodiment of the present invention, the insert connector 102 is provided with a groove 106 to make the insert connector 102 concave. Three insert plates 103 are fixedly connected to the insert connector 102. Two of the three insert plates 103 are respectively fixedly connected to the opposite side walls of the insert connector 102, and the other insert plate 103 is inserted and fixed in the groove 106.

[0026] In this design, the three insert plates 103 are fixed to the insert plate connector 102, which improves the viscous resistance between the insert plates 103 and the damping fluid and ensures the sliding stability of the moving component 1.

[0027] In one embodiment of the present invention, the insert plate connector 102 is provided with a plurality of transverse through holes 107 arranged side by side, and the insert plate 103 is provided with connecting holes corresponding to the through holes 107. The insert plate 103 is fixed to the insert plate connector 102 by means of a shaft pin 108 passing through the connecting holes and the through holes 107.

[0028] In this design, the insert plate 103 and the insert plate connector 102 are fixed by the pivot pin 108, which facilitates the installation and disassembly of the movable component 1.

[0029] In one embodiment of this utility model, the through hole 107 is configured as a threaded hole, and the shaft pin 108 is threadedly connected to the through hole 107. Nuts are threadedly connected to both ends of the shaft pin 108 extending out of the through hole 107 so that two of the three insert plates 103 located on opposite sides of the insert plate connector 102 are clamped to the insert plate connector 102. This improves the stability of the fixing of the insert plates 103 and the insert plate connector 102.

[0030] In one embodiment of the present invention, the first slide groove and the second slide groove are symmetrically arranged, the first slide groove is trapezoidal, and the short diameter end of the trapezoid is set as the opening of the first slide groove.

[0031] In this scheme, the first and second slides are set as symmetrical trapezoids, so that the slider 105 is inserted into the limiting slide 104, which ensures that the insert plate 103 will not move when the bridge is laterally displaced, and the slide 104 and the slider 105 can be matched with each other to transfer the load when the bridge is longitudinally displaced.

[0032] In one embodiment of this utility model, the through hole 107 is provided through the groove 106 to ensure the stability of the insert plate 103 inserted into the groove 106 among the three insert plates 103.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A viscous damping wall device for bridges, comprising: A movable component that is movably inserted into a damping wall is characterized in that a damping cavity is provided within the damping wall, and a damping fluid is provided within the damping cavity. The movable component is slidably connected to the damping cavity and is capable of shearing motion with the damping fluid. The movable component includes a fixing member that is fixedly connected to the superstructure of the bridge. A sliding plate connector that can slide laterally along the bridge is slidably connected to the bottom end of the fixing member. A sliding plate is fixedly connected to the sliding plate connector and is slidably connected within the damping cavity. A first sliding groove and a second sliding groove are respectively provided on the side of the sliding plate connector near the fixing member and on the side of the fixing member near the sliding plate connector. The first and second sliding grooves are correspondingly closed to form a limiting groove, and a slider is inserted into the limiting groove. A groove is provided on the sliding plate connector to make the sliding plate connector concave. Three sliding plates are fixedly connected to the sliding plate connector. Two of the three sliding plates are fixedly connected to opposite side walls of the sliding plate connector, and the third sliding plate is inserted and fixed within the groove.

2. The bridge viscous damping wall device according to claim 1, characterized in that: The insert plate connector has multiple through holes arranged side by side, and the insert plate has connection holes that correspond one-to-one with the through holes. The insert plate is fixed to the insert plate connector by means of a shaft pin passing through the connection holes and the through holes.

3. The bridge viscous damping wall device according to claim 2, characterized in that: The through hole is configured as a threaded hole, and the shaft pin is threadedly connected to the through hole. Nuts are threadedly connected to both ends of the shaft pin extending out of the through hole so that the two insert plates located on opposite sides of the insert plate connector are clamped to the insert plate connector.

4. The bridge viscous damping wall device according to claim 3, characterized in that: The first and second slides are symmetrically arranged. The first slide is trapezoidal, and the short diameter end of the trapezoid is the opening of the first slide.

5. The bridge viscous damping wall device according to claim 4, characterized in that: The through hole is provided through the groove.

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