Bridge damping device

Abstract

The utility model provides a bridge damping shock absorption device which comprises a first connecting piece, a second connecting piece and a plurality of first dampers, the first connecting piece is connected with a bridge tower platform of a bridge, the second connecting piece is connected with a main beam of the bridge, and the first dampers are connected with the first connecting piece. The multiple first dampers are arranged between the first connecting piece and the second connecting piece in parallel. The utility model has the advantages of low cost, convenient installation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge energy dissipation damping field especially relates to a bridge damper damping device. BACKGROUND

[0002] Under the action of wind load, earthquake load, vehicle load, brake load, temperature change etc., the main girder will produce displacement or vibration, and the damper is usually used as the energy dissipation damping device of the bridge main girder. Among them, the viscous fluid damper is most widely used, but it inevitably has the problems of wear, leakage and failure. And the eddy current damper has been widely used in the field of structure damping such as building and bridge in recent years due to its advantages of no fluid, high reliability and good durability.

[0003] The eddy current damper usually uses ball screw as a motion conversion component and tower beam connecting rod, and its production cost increases exponentially with the increase of damping force tonnage. For example, some large span bridges require high maximum damping force for a single damper (even up to 200 tons or more). If the eddy current damper is applied to such bridge damping, the performance requirement of ball screw is very high, resulting in very high production cost.

[0004] At the same time, the damper is usually installed between the main girder and the bridge tower platform. In order to solve the problem that the damper resistance cannot meet the requirements of large span bridge, a certain number of dampers are arranged in each direction. At this time, corresponding embedded parts and connecting parts need to be arranged for each damper between the main girder and the bridge tower platform. The arrangement of multiple embedded parts and connecting parts leads to low installation efficiency and high production cost of the damper. SUMMARY

[0005] The utility model wants to overcome the prior art's insufficient, provide a kind of bridge damper damping device with low cost, easy to install.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0007] A kind of bridge damper damping device, including first connecting piece, second connecting piece and multiple first dampers, wherein the first connecting piece is connected with the bridge tower platform of bridge, the second connecting piece is connected with the main girder of bridge, multiple first dampers are installed in parallel between the first connecting piece and the second connecting piece.

[0008] As a further improvement of the above technical scheme:

[0009] The bridge damping and shock absorbing device further comprises a third connecting member connected with the main beam or the bridge tower platform; when the third connecting member is connected with the main beam, a second damper is arranged between the third connecting member and the first connecting member, and the arrangement direction of the second damper is different from that of the first damper; when the third connecting member is connected with the bridge tower platform, a second damper is arranged between the third connecting member and the second connecting member, and the arrangement direction of the second damper is different from that of the first damper.

[0010] A plurality of second dampers are arranged in parallel between the third connecting member and the second connecting member or between the third connecting member and the first connecting member.

[0011] The bridge damping and shock absorbing device further comprises a fourth connecting member connected with the main beam; a third damper is arranged between the fourth connecting member and the first connecting member or between the fourth connecting member and the second connecting member, and the arrangement direction of the third damper is different from that of the first damper; when the second damper is arranged, the arrangement directions of the third damper, the first damper and the second damper are different.

[0012] A plurality of third dampers are arranged in parallel between the fourth connecting member and the first connecting member or between the fourth connecting member and the second connecting member.

[0013] The bridge tower platform is provided with a first embedded member, the first connecting member is installed on the first embedded member, the main beam is provided with a second embedded member, and the second connecting member is installed on the second embedded member.

[0014] The third connecting member is installed on the first embedded member or the second embedded member; when the third connecting member is installed on the first embedded member, a second damper is arranged between the third connecting member and the second connecting member, and the arrangement direction of the second damper is different from that of the first damper; when the third connecting member is installed on the second embedded member, a second damper is arranged between the third connecting member and the first connecting member, and the arrangement direction of the second damper is different from that of the first damper.

[0015] The first connecting member comprises a plurality of first ear plates, the second connecting member comprises a plurality of second ear plates, the number of the first ear plates is the same as that of the second ear plates, each first damper is arranged between the corresponding first ear plate and second ear plate, and the two ends of the first damper are respectively hinged to the first ear plate and the second ear plate.

[0016] When the third connecting member is arranged, the third connecting member comprises a third ear plate, one end of the second damper is hinged to the first ear plate or the second ear plate, and the other end of the second damper is hinged to the third ear plate.

[0017] The fourth connecting piece comprises a fourth ear plate, and one end of the third damper is hinged to the first ear plate or the second ear plate and the other end is hinged to the fourth ear plate.

[0018] Compared with the prior art, the bridge damping and shock-absorbing device has the advantages that:

[0019] 1、The bridge damping and shock-absorbing device, each first damper is installed between the first connecting piece and the second connecting piece in parallel, so that in the process of bridge vibration, multiple dampers work together, the maximum damping force generated by the dampers is the sum of the maximum damping force provided by each damper, when the damper is an eddy current damper, under the premise of requiring to provide a large tonnage damping force, multiple dampers with relatively small damping force tonnage can be connected in parallel to meet the performance requirements of the ball screw, without designing an eddy current damper with a large tonnage damping force to cause the ball screw to meet extremely high performance requirements, thereby greatly reducing the production cost of the ball screw and also enhancing the safety and reliability of the damper, in addition, multiple dampers share two connecting pieces, unlike the prior art in which each damper needs to be arranged with a connecting piece, the cost of the connecting piece is greatly reduced.

[0020] 2、The bridge damping and shock-absorbing device also comprises third and fourth connecting pieces, which realize the installation of dampers in two directions or three directions, thereby realizing the parallel installation of dampers with different damping force directions, meeting the damping force demand of the bridge in multiple directions, and also reducing the cost of the connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be described in more detail below based on the embodiments and with reference to the drawings. Among them:

[0022] Figure 1 is a structure schematic view of the bridge damping and shock-absorbing device of the utility model embodiment 1.

[0023] Figure 2 is Figure 1 the bottom view of

[0024] Figure 3 is Figure 1 the left view of

[0025] Figure 4 is a structure schematic view of the bridge damping and shock-absorbing device of the utility model embodiment 2.

[0026] Figure 5 is a structure schematic view of the bridge damping and shock-absorbing device of the utility model embodiment 3.

[0027] Figure 6It is the structural schematic view of the bridge damping shock absorber device of the embodiment 4 of the utility model.

[0028] Figure 7 It is Figure 6 The left view.

[0029] Figure 8 It is the left view of the bridge damping shock absorber device of the embodiment 5 of the utility model.

[0030] Figure 9 It is the structural schematic view of the bridge damping shock absorber device of the embodiment 6 of the utility model.

[0031] Figure 10 It is the structural schematic view of the bridge damping shock absorber device of the embodiment 7 of the utility model.

[0032] The various reference numerals in the drawing represent:

[0033] 1, first embedded part;2, second embedded part;3, first connecting piece;31, first ear plate;4, second connecting piece;41, second ear plate;51, first damper;52, second damper;53, third damper;6, bridge tower platform;7, main beam;8, reinforcing rib plate;9, third connecting piece;91, third ear plate;10, fourth connecting piece;101, fourth ear plate;11, pin shaft. DETAILED DESCRIPTION

[0034] The utility model will be made further detailed explanation in the following with the drawing of specification and specific embodiment, but not therefore limit the protection scope of the utility model. Embodiment 1

[0035] As Figures 1 to 3 Indicated, the bridge damping shock absorber device of the embodiment, including first embedded part 1, second embedded part 2, first connecting piece 3, second connecting piece 4 and first damper 51. First embedded part 1 is connected with the bridge tower platform 6 of bridge, specifically, first embedded part 1 is embedded when the construction of bridge tower platform 6, and the stable fixed connection is formed;Similarly, second embedded part 2 is connected with the main beam 7 of bridge, specifically, second embedded part 2 is embedded when the construction of main beam 7, first connecting piece 3 is installed on first embedded part 1, second connecting piece 4 is installed on second embedded part 2, and the stable fixed connection is formed. First damper 51 is set to multiple, and the embodiment is two first dampers 51, and two first dampers 51 are connected in parallel between first connecting piece 3 and second connecting piece 4, and the two ends of single first damper 51 are connected with first connecting piece 3 and second connecting piece 4 respectively. In other embodiments, the setting number of first damper 51 can be adjusted according to actual conditions, such as first damper 51 can also be connected in parallel to three, four, etc.

[0036] Each first damper 51 is installed between the first connecting piece 3 and the second connecting piece 4 in parallel, the installation direction of each first damper 51 is same, and the plurality of first dampers 51 only need to be provided with one first connecting piece 3 and one second connecting piece 4. In this way, in the process of bridge vibration, the plurality of first dampers 51 work together, and the maximum damping force generated by the plurality of first dampers 51 is the sum of the maximum damping force provided by each first damper 51. When the first damper 51 is an eddy current damper, under the premise of requiring to provide a large tonnage damping force, a plurality of dampers with relatively small damping force tonnage are connected in parallel to achieve the performance requirements of the ball screw, without the need to design a large tonnage eddy current damper to cause the ball screw to achieve extremely high performance requirements, thereby greatly reducing the production cost of the ball screw, and also enhancing the safety and reliability of the damper. In addition, the plurality of dampers only share two embedded pieces and two connecting pieces, unlike the prior art in which each damper needs to be arranged with a connecting piece and an embedded piece, thereby greatly reducing the cost of the embedded pieces and the connecting pieces.

[0037] In the embodiment, the first connecting piece 3 includes two first ear plates 31, the second connecting piece 4 includes two second ear plates 41, one end of each first damper 51 corresponds to one first ear plate 31, and the other end of each first damper 51 corresponds to one second ear plate 41. One end of each of the two first dampers 51 is hingedly connected to one of the two first ear plates 31, and the other end of each of the two first dampers 51 is hingedly connected to one of the two second ear plates 41. Preferably, a pin shaft 11 is used for hingedly connecting each end.

[0038] As shown in Figure 3 In the embodiment, in order to improve the connection strength of the first ear plate 31 and the second ear plate 41, a reinforcing rib plate 8 is arranged between the first ear plate 31 and the first embedded piece 1, and a reinforcing rib plate 8 is arranged between the second ear plate 41 and the second embedded piece 2. Embodiment 2

[0039] Figure 4 Another embodiment of the bridge damping and shock absorbing device of the utility model is shown, which is basically the same as the previous embodiment, and the difference lies in that the bridge damping and shock absorbing device of the embodiment further includes a third connecting piece 9, the third connecting piece 9 is installed on the second embedded piece 2, the third connecting piece 9 and the second connecting piece 4 are in different directions, and the third connecting piece 9 and the first connecting piece 3 are provided with a second damper 52. Figure 4 In the embodiment, the third connecting piece 9 is on the left side of the second embedded piece 2, and the second connecting piece 4 is on the bottom side of the second embedded piece 2.

[0040] The dampers are divided into two groups, one group (the first dampers 51) is arranged horizontally, and the other group (the second dampers 52) is arranged obliquely, the arrangement directions of the first dampers 51 and the second dampers 52 are different, so that the dampers can be installed in different directions according to requirements, the multiple-direction damping force requirements of the bridge are met, multiple-direction damping forces are provided, and the cost of the embedded parts and the connecting parts is reduced.

[0041] In the embodiment, the third connecting part 9 comprises a third lug plate 91, the second dampers 52 corresponding to the third connecting part 9 are hinged with the third lug plate 91, and the hinging is specifically achieved through the pin shaft 11.

[0042] It should be noted that in actual work, multiple second dampers 52 can be arranged in parallel between the third connecting part 9 and the first connecting part 3. Embodiment 3

[0043] Figure 5 An embodiment of another bridge damping and shock-absorbing device of the utility model is shown, the embodiment is basically the same as the embodiment 2, the difference lies in that the bridge damping and shock-absorbing device of the embodiment further comprises a fourth connecting part 10, the fourth connecting part 10 is connected with the main beam 7, and a third damper 53 is arranged between the fourth connecting part 10 and the first connecting part 3, the direction of the third damper 53 is a vertical direction, which is different from the arrangement direction of the second damper 52 and also different from the direction of the first damper 51, that is, the dampers are divided into three groups, and the directions of the dampers of the three groups are different.

[0044] In the embodiment, the fourth connecting part 10 comprises a fourth lug plate 101, and the dampers 5 corresponding to the fourth connecting part 10 are hinged with the fourth lug plate 101 through the pin shaft 11.

[0045] It should be noted that in actual work, multiple third dampers 53 can be arranged in parallel between the fourth connecting part 10 and the first connecting part 3. Embodiment 4

[0046] Figure 6 And Figure 7The embodiment of the utility model discloses another bridge damping shock absorber, and the bridge damping shock absorber of this embodiment is basically same with embodiment 1, and the difference lies in: the bridge damping shock absorber of this embodiment includes fourth connecting piece 10, and the first connecting piece 3 and second connecting piece 4 are equipped with two first damper 52. Fourth connecting piece 10 is connected with main beam 7, and one third damper 53 is arranged between fourth connecting piece 10 and first connecting piece 3, and the third damper 53 is vertically arranged, and the first damper 51 between first connecting piece 3 and second connecting piece 4 is horizontally arranged, when the bridge has the damping force demand of multiple directions, the damping shock absorber of this embodiment is used, and the damper of different damping force direction can greatly reduce the cost of embedded part and connecting piece. Embodiment 5

[0047] Figure 8 The embodiment of the utility model discloses another bridge damping shock absorber, and the bridge damping shock absorber of this embodiment is basically same with embodiment 4, and the difference lies in: two third dampers 53 are arranged in parallel between fourth connecting piece 10 and first connecting piece 3 in the bridge damping shock absorber of this embodiment. In this embodiment, only one first connecting piece 3, one second connecting piece 4 and one fourth connecting piece 10 need to be arranged, multiple dampers in vertical direction and horizontal direction are realized in parallel, the damping force demand of multiple directions of the bridge is met, and the number of embedded parts and connecting pieces is reduced. Embodiment 6

[0048] Figure 9 The embodiment of the utility model discloses another bridge damping shock absorber, and the bridge damping shock absorber of this embodiment is basically same with embodiment 1, and the difference lies in:

[0049] The bridge damping shock absorber of this embodiment does not need to be equipped with first embedded part 1 and second embedded part 2. The first connecting piece 3 is directly connected with bridge tower platform 6, and the second connecting piece 4 is directly connected with main beam 7. The embedded part is saved, and the performance requirement of large tonnage damping force is also met, and the cost of connecting piece is reduced. Embodiment 7

[0050] Figure 10 The embodiment of the utility model discloses another bridge damping shock absorber, and the bridge damping shock absorber of this embodiment is basically same with embodiment 4, and the difference lies in:

[0051] The bridge damping shock absorber of this embodiment does not need to be equipped with first embedded part 1 and second embedded part 2. The first connecting piece 3 is directly connected with bridge tower platform 6, and the second connecting piece 4, third connecting piece 9 and fourth connecting piece 10 are directly connected with main beam 7. Similarly, the embedded part is saved, and the performance requirement of large tonnage damping force is also met, and the cost of connecting piece is reduced.

[0052] It should be noted that the first damper 51, the second damper 52 and the third damper of the utility model can be the same or different in size and model, and in actual application, the same model of damper can be preferably used, and the number of dampers in each direction is not limited to one or two, and can be more than three. In addition, the damper of the utility model is not limited to an eddy current damper, and can be a magnetorheological damper or an oil damper or even a friction damper, and is particularly suitable for an eddy current damper, because the cost and precision of the ball screw are relatively high.

[0053] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it and parts thereof can be replaced with equivalents without departing from the scope of the utility model. In particular, each of the technical features mentioned in each of the embodiments can be combined in any manner as long as there is no structural conflict. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bridge damper shock absorbing device, characterized by, The first connecting piece, the second connecting piece and the plurality of first dampers, wherein the first connecting piece is connected with a tower platform of a bridge, the second connecting piece is connected with a main beam of the bridge, and the plurality of first dampers are installed in parallel between the first connecting piece and the second connecting piece; the first connecting piece comprises a plurality of first ear plates, the second connecting piece comprises a plurality of second ear plates, the number of the first ear plates is the same as that of the second ear plates, each first damper is arranged between the corresponding first ear plate and the second ear plate, and the two ends of the first damper are hinged with the first ear plate and the second ear plate respectively.

2. The bridge damper vibration reduction device of claim 1, wherein, The third connecting piece is further included, which is connected with the main beam or the tower platform; when the third connecting piece is connected with the main beam, a second damper is arranged between the third connecting piece and the first connecting piece, and the arrangement direction of the second damper is different from that of the first damper; when the third connecting piece is connected with the tower platform, a second damper is arranged between the third connecting piece and the second connecting piece, and the arrangement direction of the second damper is different from that of the first damper.

3. The bridge damper vibration reduction device of claim 2, wherein, A plurality of second dampers are arranged in parallel between the third connecting piece and the second connecting piece or between the third connecting piece and the first connecting piece.

4. Bridge damper device according to claim 2 or 3, characterized in that The fourth connecting piece is further included, which is connected with the main beam; a third damper is arranged between the fourth connecting piece and the first connecting piece or between the fourth connecting piece and the second connecting piece, and the arrangement direction of the third damper is different from that of the first damper; when the second damper is arranged, the arrangement directions of the third damper, the first damper and the second damper are different.

5. The bridge damper vibration reduction device of claim 4, wherein, A plurality of third dampers are arranged in parallel between the fourth connecting piece and the first connecting piece or between the fourth connecting piece and the second connecting piece.

6. The bridge damper vibration reduction device of any one of claims 1 to 3, wherein, The first pre-embedded part is arranged on the tower platform, the first connecting piece is installed on the first pre-embedded part, the second pre-embedded part is arranged on the main beam, and the second connecting piece is installed on the second pre-embedded part.

7. The bridge damper vibration reduction device of claim 6, wherein, The third connecting piece is further included, which is installed on the first pre-embedded part or the second pre-embedded part; when the third connecting piece is installed on the first pre-embedded part, a second damper is arranged between the third connecting piece and the second connecting piece, and the arrangement direction of the second damper is different from that of the first damper; when the third connecting piece is installed on the second pre-embedded part, a second damper is arranged between the third connecting piece and the first connecting piece, and the arrangement direction of the second damper is different from that of the first damper.

8. Bridge damper device according to claim 2 or 3, characterized in that When the third connecting piece is arranged, the third connecting piece comprises a third ear plate, one end of the second damper is hinged with the first ear plate or the second ear plate, and the other end of the second damper is hinged with the third ear plate.

9. The bridge damper vibration reduction device of any one of claims 1 to 3, wherein, The fourth connecting piece is further included, which is connected with the main beam, a third damper is arranged between the fourth connecting piece and the first connecting piece or between the fourth connecting piece and the second connecting piece, The fourth connecting piece comprises a fourth lug plate, one end of the third damper is hinged to the first lug plate or the second lug plate, and the other end is hinged to the fourth lug plate.

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