Damping support for bridge design

Abstract

The utility model relates to the field of bridge engineering equipment, and discloses a damping support for bridge design, which comprises an upper seat plate and a lower seat plate which are oppositely arranged at an interval, the first friction plate, the second friction plate and the friction energy consumption part are located between the upper seat plate and the lower seat plate, the first friction plate and the second friction plate are fixedly connected with the upper seat plate and the lower seat plate respectively, the first friction plate is in friction connection with the friction energy consumption part in the front-back direction, and the second friction plate is in friction connection with the friction energy consumption part in the left-right direction. When the damping support is used, the front-back direction of the damping support is arranged to be parallel to the length direction of a bridge, and the left-right direction of the damping support is arranged to be parallel to the width direction of the bridge. Friction energy dissipation can be achieved between the second friction plate and the friction energy dissipation piece, relative displacement is generated to cope with earthquake impact, and the purpose of shock absorption is achieved.

Description

Technical Field

[0001] The utility model relates to the field of bridge engineering equipment, in particular to a shock-absorbing support for bridge design. Background Art

[0002] As a vital component of transportation infrastructure, the safety and stability of bridges are of paramount importance. Natural disasters such as earthquakes place higher demands on the safety performance of bridge structures. Traditional bridge bearings often suffer damage during strong earthquakes due to a lack of effective shock absorption mechanisms, leading to structural damage and functional disruption.

[0003] The patent with announcement number CN220977685U discloses a shock-absorbing bearing for bridge design. In this patent, the shock-absorbing main core is located in the center between the upper connecting steel plate and the lower connecting steel plate of the bearing body, and plays the main load-bearing and shock-absorbing role. When the bridge vibrates, the shock-absorbing main core can absorb and disperse the vibration energy through the action of the rubber layer and the lead core, reduce the impact of the vibration on the bridge, improve the shock-absorbing effect of the bridge and the durability of the structure. The sealing design can also ensure the stability and safety of the shock-absorbing main core.

[0004] However, since the shock-absorbing main core is connected to the upper connecting steel plate and the lower connecting steel plate, when natural disasters such as earthquakes cause the support to move in the front-to-back direction and the width direction, the upper connecting steel plate and the lower connecting steel plate cannot achieve horizontal displacement, which will cause damage to the shock-absorbing support. In such situations, the shock-absorbing effect cannot be achieved. Utility Model Content

[0005] The utility model aims to provide a shock-absorbing support for bridge design to overcome the shortcomings of the above situation.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is:

[0007] A shock-absorbing bearing for bridge design, comprising:

[0008] Upper and lower seat plates disposed opposite and spaced apart; and

[0009] A first friction plate, a second friction plate and a friction energy absorbing member are located between the upper seat plate and the lower seat plate. The first friction plate and the second friction plate are fixedly connected to the upper seat plate and the lower seat plate respectively. The first friction plate is frictionally connected to the friction energy absorbing member along the front-to-back direction, and the second friction plate is frictionally connected to the friction energy absorbing member along the left-to-right direction.

[0010] Furthermore, the friction energy absorbing member is provided with a first through hole along the front-to-back direction, and the first friction plate is frictionally connected to the first through hole.

[0011] Furthermore, the first friction plate is provided with a plurality of first strip-shaped through holes, which extend in the front-rear direction. The friction energy absorbing part is penetrated by a first fastener in the vertical direction, which passes through the first strip-shaped through holes.

[0012] Furthermore, the friction energy absorbing member is provided with a second through hole along the left-right direction, and the second friction plate is frictionally connected to the second through hole.

[0013] Furthermore, the second friction plate is provided with a plurality of second strip-shaped through holes, the second strip-shaped through holes extend in the left-right direction, and the first fastener is provided through the second strip-shaped through holes.

[0014] Furthermore, a friction material layer is fixedly connected to the relative contact surface between the first friction plate and the first through hole, and the relative contact surface between the second friction plate and the second through hole. The friction material layer is made of polytetrafluoroethylene, brass plate or polymer composite material.

[0015] Furthermore, both ends of the first friction plate in the front-to-rear direction are fixedly connected to a first connecting seat, a first rubber plate is provided between the first connecting seat and the upper seat plate, and the first connecting seat, the first rubber plate and the upper seat plate are connected by a second fastener.

[0016] Furthermore, both ends of the first friction plate in the left and right directions are fixedly connected to second connecting seats, a second rubber plate is provided between the second connecting seat and the lower seat plate, and the second connecting seat, the second rubber plate and the lower seat plate are connected by a third fastener.

[0017] Furthermore, the upper seat plate and the lower seat plate are rectangular plates, and four groups of damping rod assemblies are arranged between the upper seat plate and the lower seat plate. The four groups of damping rod assemblies are distributed in a circular array along the vertical center of the friction energy absorbing part, and the four groups of damping rod assemblies are respectively located at the four corners of the upper seat plate.

[0018] Furthermore, the damping rod assembly includes:

[0019] a third connecting seat fixedly connected to the upper seat plate;

[0020] a damping rod with one end hinged to the third connecting seat, the damping rod being arranged at an angle;

[0021] a fourth connecting seat fixedly connected to the lower seat plate; and

[0022] A damping tube is hinged to the fourth connecting seat at one end, and the other end of the damping rod is inserted into the other end of the damping tube, and the two are frictionally connected. An SMA spring is provided in the damping tube, and the two ends of the SMA spring are respectively fixedly connected to the end wall of the damping tube and the other end of the damping rod.

[0023] Compared with the prior art, the present invention has at least the following advantages:

[0024] When in use, the front and rear directions of the shock-absorbing support are set to be parallel to the length direction of the bridge, and the left and right directions of the shock-absorbing support are set to be parallel to the width direction of the bridge. When a disaster such as an earthquake occurs and horizontal displacement occurs between the upper seat plate and the lower seat plate, friction energy consumption can be achieved between the first friction plate and the friction energy absorbing part, and between the second friction plate and the friction energy absorbing part, and relative displacement can be generated to cope with the impact of the earthquake and achieve the purpose of shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the shock-absorbing bearing used in the bridge design of the utility model;

[0027] Figure 2 A cross-sectional view of a shock-absorbing bearing designed for a bridge according to the present invention;

[0028] Figure 3 A cross-sectional view of the shock-absorbing bearing for bridge design according to the utility model from another perspective;

[0029] Figure 4 It is a cross-sectional view of the damping rod assembly of the utility model;

[0030] Figure 5 This is an exploded view of the shock-absorbing bearing used in the bridge design of this utility model.

[0031] Figure numerals: 1, upper seat plate; 2, lower seat plate; 3, first friction plate; 4, second friction plate; 5, friction energy-absorbing part; 6, first through hole; 7, first strip through hole; 8, first fastener; 9, second through hole; 10, second strip through hole; 11, friction material layer; 12, first connecting seat; 13, first rubber plate; 14, second fastener; 15, second connecting seat; 16, second rubber plate; 17, third fastener; 18, third connecting seat; 19, damping rod; 20, SMA spring; 21, damping tube; 22, fourth connecting seat. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The present invention provides a shock-absorbing bearing for bridge design, comprising an upper seat plate 1 and a lower seat plate 2 disposed opposite and spaced apart from each other, and a first friction plate 3, a second friction plate 4, and a friction energy dissipation member 5 disposed between the upper and lower seat plates 1 and 2. The first friction plate 3 is fixedly connected to the upper seat plate 1, while the second friction plate 4 is fixedly connected to the lower seat plate 2. The first friction plate 3 and the friction energy dissipation member 5 are frictionally connected in the front-to-back direction, while the second friction plate 4 and the friction energy dissipation member 5 are frictionally connected in the left-to-right direction.

[0035] When in use, the front-to-back direction of the shock-absorbing support is set to be parallel to the length direction of the bridge, and the left-to-right direction of the shock-absorbing support is set to be parallel to the width direction of the bridge. When a disaster such as an earthquake occurs and horizontal displacement occurs between the upper seat plate 1 and the lower seat plate 2, friction energy consumption can be achieved between the first friction plate 3 and the friction energy absorbing part 5, and between the second friction plate 4 and the friction energy absorbing part 5, and relative displacement can be generated to cope with the impact of the earthquake and achieve the purpose of shock absorption.

[0036] To enhance shock absorption, the friction dissipation member 5 is provided with first through-holes 6 extending in the front-to-back direction, enabling frictional engagement between the first friction plate 3 and the friction plate 3. Furthermore, the first friction plate 3 is provided with a plurality of first strip-shaped through-holes 7 extending in the front-to-back direction. A first fastener 8 is vertically inserted through the friction dissipation member 5, extending through the first strip-shaped through-holes 7 and further enhancing the stability of the connection.

[0037] Similarly, the friction dissipation member 5 is provided with second through-holes 9 extending in the left-right direction, enabling frictional engagement between the second friction plate 4 and the friction dissipation member 5. The second friction plate 4 is also provided with a plurality of second strip-shaped through-holes 10 extending in the left-right direction. First fasteners 8 are provided through the second strip-shaped through-holes 10, ensuring a tight connection between the second friction plate 4 and the friction dissipation member 5.

[0038] To improve friction, friction material layers 11 are fixedly attached to the contact surfaces of the first friction plate 3 and the first through hole 6, and to the contact surfaces of the second friction plate 4 and the second through hole 9. These friction material layers 11 are made of polytetrafluoroethylene, brass plates, or polymer composite materials, all of which have excellent wear resistance and stability.

[0039] To enhance the stability of the support, first friction plate 3 is fixedly connected to first connecting bases 12 at both ends in the front-to-back direction. A first rubber plate 13 is interposed between first connecting base 12 and upper seat plate 1. These components are connected via second fasteners 14. Similarly, second connecting bases 15 are fixedly connected to first friction plate 3 at both ends in the left-to-right direction. A second rubber plate 16 is interposed between second connecting base 15 and lower seat plate 2. These components are connected via third fasteners 17.

[0040] The first rubber plate 13 and the second rubber plate 16 can resist the vibration of the bridge in the vertical direction, thereby achieving a shock-absorbing effect in the vertical direction.

[0041] The upper and lower seat plates 1 and 2 are typically rectangular plates, with four sets of damping rods 19 disposed between them. These damping rods 19 are arranged in a circular array along the vertical center of the friction dissipation element 5 and located at the four corners of the upper seat plate 1. This design effectively disperses vibration energy and improves shock absorption.

[0042] Reference Figure 4 Each damping rod 19 assembly includes a third connecting seat 18 fixedly connected to the upper seat plate 1, a damping rod 19 hinged at one end to the third connecting seat 18, a fourth connecting seat 22, which is tilted and fixedly connected to the lower seat plate 2, and a damping tube 21 hinged at one end to the fourth connecting seat 22. The other end of the damping rod 19 is inserted into the other end of the damping tube 21, and the two are frictionally connected. An SMA spring 20 is disposed within the damping tube 21, with its two ends fixedly connected to the end wall of the damping tube 21 and the other end of the damping rod 19, respectively. This structure can effectively absorb and dissipate vibration energy, thereby protecting the bridge structure from damage.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A shock-absorbing bearing for bridge design, characterized in that: include: An upper seat plate (1) and a lower seat plate (2) are arranged opposite to each other and spaced apart; as well as A first friction plate (3), a second friction plate (4) and a friction energy absorbing member (5) are located between the upper seat plate (1) and the lower seat plate (2); the first friction plate (3) and the second friction plate (4) are fixedly connected to the upper seat plate (1) and the lower seat plate (2), respectively; the first friction plate (3) and the friction energy absorbing member (5) are frictionally connected in the front-to-back direction; and the second friction plate (4) and the friction energy absorbing member (5) are frictionally connected in the left-to-right direction.

2. The shock-absorbing bearing for bridge design according to claim 1, characterized in that: The friction energy absorbing member (5) is provided with a first through hole (6) along the front-back direction, and the first friction plate (3) is frictionally connected to the first through hole (6).

3. The shock-absorbing bearing for bridge design according to claim 2, characterized in that: The first friction plate (3) is provided with a plurality of first strip-shaped through holes (7), the first strip-shaped through holes (7) extending in the front-rear direction, the friction energy absorbing part (5) is provided with a first fastener (8) penetrating in the vertical direction, the first fastener (8) penetrating the first strip-shaped through holes (7).

4. The shock-absorbing bearing for bridge design according to claim 3, characterized in that: The friction energy absorbing member (5) is provided with a second through hole (9) along the left-right direction, and the second friction plate (4) is frictionally connected to the second through hole (9).

5. The shock-absorbing bearing for bridge design according to claim 4, characterized in that: The second friction plate (4) is provided with a plurality of second strip-shaped through holes (10), the second strip-shaped through holes (10) extending in the left-right direction, and the first fastener (8) is arranged to pass through the second strip-shaped through holes (10).

6. The shock-absorbing bearing for bridge design according to claim 5, characterized in that: A friction material layer (11) is fixedly connected to the relative contact surface between the first friction plate (3) and the first through hole (6), and to the relative contact surface between the second friction plate (4) and the second through hole (9). The friction material layer (11) is made of polytetrafluoroethylene, brass plate or polymer composite material.

7. The shock-absorbing bearing for bridge design according to claim 6, characterized in that: Both ends of the first friction plate (3) in the front-to-back direction are fixedly connected to a first connecting seat (12); a first rubber plate (13) is provided between the first connecting seat (12) and the upper seat plate (1); the first connecting seat (12), the first rubber plate (13) and the upper seat plate (1) are connected via a second fastener (14).

8. The shock-absorbing bearing for bridge design according to claim 7, characterized in that: The first friction plate (3) is fixedly connected to a second connecting seat (15) at both ends in the left and right directions, a second rubber plate (16) is provided between the second connecting seat (15) and the lower seat plate (2), and the second connecting seat (15), the second rubber plate (16) and the lower seat plate (2) are connected by a third fastener (17).

9. The shock-absorbing bearing for bridge design according to any one of claims 1 to 8, characterized in that: The upper seat plate (1) and the lower seat plate (2) are rectangular plates. Four groups of damping rod (19) assemblies are arranged between the upper seat plate (1) and the lower seat plate (2). The four groups of damping rod (19) assemblies are distributed in a circular array along the vertical center of the friction energy absorbing part (5). The four groups of damping rod (19) assemblies are respectively located at the four corners of the upper seat plate (1).

10. The shock-absorbing bearing for bridge design according to claim 9, characterized in that: The damping rod (19) assembly comprises: a third connecting seat (18) fixedly connected to the upper seat plate (1); a damping rod (19) having one end hinged to the third connecting seat (18), wherein the damping rod (19) is tilted; a fourth connecting seat (22) fixedly connected to the lower seat plate (2); and A damping tube (21) is hingedly connected to the fourth connecting seat (22) at one end, and the other end of the damping rod (19) is inserted into the other end of the damping tube (21), and the two are frictionally connected. An SMA spring (20) is provided in the damping tube (21), and the two ends of the SMA spring (20) are fixedly connected to the end wall of the damping tube (21) and the other end of the damping rod (19), respectively.

Images