Bridge transverse damper with resetting and graded energy consumption functions

Abstract

The utility model relates to a bridge transverse damper with resetting and grading energy consumption functions, which particularly comprises a beam bottom connecting plate, a limiting baffle, a beam bottom connecting plate bolt, a pier top connecting plate bolt, a steel rod right end nut, a steel rod left end nut, a steel rod, an SMA disc spring group, a triangular steel plate and a pier top connecting plate. The triangular steel plate is connected with the pier top connecting plate, a round hole is formed in the upper portion of the triangular steel plate, the limiting baffles are connected with the beam bottom connecting plate, the limiting baffles are provided with horizontal guide grooves, the SMA disc spring groups are arranged between the adjacent limiting baffles and the triangular steel plate, and the steel rod sequentially penetrates through the guide grooves of the limiting baffles, the SMA disc spring groups and the round hole in the upper portion of the triangular steel plate. And the steel rod right-end nut and the steel rod left-end nut are screwed at the thread tooth opening at the end part of the steel rod, so that the bridge transverse damper with resetting and graded energy consumption functions is formed. Under frequent earthquakes, the SMA disc spring group is used for providing energy dissipation and reset capacity, and under rare earthquakes, the triangular steel plates generate plastic deformation to dissipate earthquake energy.

Description

Technical Field

[0001] This utility model relates to the field of energy dissipation and vibration reduction technology for bridge structures, specifically to a bridge lateral damper with reset and graded energy dissipation functions. Background Technology

[0002] Dampers dissipate seismic energy, thereby reducing the seismic response of a structure and protecting its main components from damage. Currently, viscous dampers and metallic dampers are widely used in structures and can dissipate energy, but they still have many shortcomings. For example, while viscous dampers have good energy dissipation capabilities, they are prone to oil leakage, affecting their service life; metallic dampers are susceptible to fatigue failure, deformation is difficult to recover, and they lack a reset function. Therefore, it is essential to develop a bridge transverse damper with reset and graded energy dissipation functions. Summary of the Invention

[0003] To address the aforementioned problems, this utility model relates to a bridge lateral damper with reset and graded energy dissipation functions. It mainly comprises a beam bottom connecting plate, limiting baffles, beam bottom connecting plate bolts, pier top connecting plate bolts, a right-end nut on the steel rod, a left-end nut on the steel rod, a steel rod, an SMA disc spring group, a triangular steel plate, and a pier top connecting plate. The limiting baffles are arranged at equal intervals and connected to the beam bottom connecting plate. The triangular steel plates are arranged at equal intervals and connected to the pier top connecting plate. The SMA disc spring group is arranged between adjacent limiting baffles and triangular steel plates. The steel rod sequentially passes through the horizontal guide grooves of all limiting baffles, the SMA disc spring group, and the circular holes at the top of the triangular steel plates. The right-end and left-end nuts on the steel rod are tightened at the threaded ends of the steel rod, forming a bridge lateral damper with reset and graded energy dissipation functions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] a. Determine the combination method of the SMA disc spring group, and the dimensions of the bottom beam connecting plate, limit baffle, steel rod, triangular steel plate and pier top connecting plate.

[0006] b. The limiting baffle is provided with a horizontal guide groove, the height of which is greater than the diameter of the steel rod.

[0007] c. Limiting baffles are arranged at equal intervals and connected to the bottom connecting plate of the beam.

[0008] d. A circular hole is provided at the upper end of the triangular steel plate, the diameter of which is larger than the diameter of the steel rod, and the triangular steel plate is connected to the connecting plate at the top of the pier.

[0009] e. Arrange the SMA disc spring group between adjacent triangular steel plates and limit baffles.

[0010] f. The steel rod passes sequentially through the horizontal guide grooves of all the limiting baffles, the SMA disc spring group, and the circular hole at the top of the triangular steel plate. The nuts at the right and left ends of the steel rod are tightened at the threaded joints at the ends of the steel rod, forming a bridge transverse damper with reset and graded energy dissipation functions.

[0011] g. Install the bridge lateral damper between the bottom of the bridge beam and the top of the pier.

[0012] The main advantages of this utility model are:

[0013] 1. This utility model has the characteristics of requiring less material, being easy to assemble, having readily available materials, and having reliable connections.

[0014] 2. The combination method of the SMA disc spring group in this utility model allows for flexible adjustment of the dimensions of the beam bottom connecting plate, limiting baffle, steel rod, triangular steel plate and pier top connecting plate according to the site conditions, in order to meet various needs.

[0015] 3. In this utility model, the SMA disc spring group provides the system with reset capability, the triangular steel plate provides energy dissipation capability, and the bridge transverse damper has a graded energy dissipation function.

[0016] 4. The connection method of this utility model adopts welding and bolt connection, which does not require large construction equipment. It can be prefabricated or made on site, and maintenance is simple. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation location of a bridge transverse damper with reset and graded energy dissipation functions.

[0018] Figure 2 This is a schematic diagram of a bridge transverse damper device with reset and graded energy dissipation functions.

[0019] Figure 3 This is a schematic diagram of the assembly of a bridge transverse damper device with reset and graded energy dissipation functions.

[0020] Figure 4 This is a schematic diagram of the initial state of a bridge transverse damper with reset and graded energy dissipation functions.

[0021] Figure 5 This is a schematic diagram of the first-stage energy dissipation state of a bridge transverse damper with reset and graded energy dissipation functions.

[0022] Figure 6 This is a schematic diagram of the second-stage energy dissipation state of a bridge transverse damper with reset and graded energy dissipation functions.

[0023] Figure Labels

[0024] Bridge beam (1); pier (2); bridge transverse damper (3); bridge bearing (4); bottom connecting plate bolt (5); bottom connecting plate (6); steel rod (7); left end nut of steel rod (8); SMA disc spring group (9); right end nut of steel rod (10); limit baffle (11); triangular steel plate (12); top connecting plate bolt (13); top connecting plate (14); horizontal guide groove (15); round hole (16); threaded groove (17). Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings, examples of which are shown in the drawings and the following description.

[0026] like Figure 1 As shown, the bridge transverse damper (3) with reset and graded energy dissipation functions is installed between the bottom of the bridge beam (1) and the top of the pier (2), inside the bridge bearing (4), to play a transverse energy dissipation role.

[0027] like Figure 2 and Figure 3 As shown, the bridge transverse damper with reset and graded energy dissipation functions is mainly composed of a beam bottom connecting plate (6), a limiting baffle (11), a beam bottom connecting plate bolt (5), a pier top connecting plate bolt (13), a steel rod (7), an SMA disc spring group (9), a triangular steel plate (12), and a pier top connecting plate (14).

[0028] Based on the usage requirements, determine the dimensions of components such as SMA disc spring group (9), limit baffle (11), triangular steel plate (12), and steel rod (7), as well as the combination method of SMA disc spring group (9). The inner diameter of SMA disc spring group (9) must be greater than the diameter of steel rod (7).

[0029] The steel rod (7) has threaded teeth (17) at both ends, and a round hole (16) is provided on the upper part of the triangular steel plate (12). The diameter of the round hole (16) is equal to the inner diameter of the SMA disc spring group (9). A horizontal guide groove (15) is provided on the limiting baffle (11). The height of the horizontal guide groove (15) is greater than the diameter of the steel rod (7).

[0030] The limiting baffles (11) are arranged at equal intervals and connected to the bottom connecting plate (6) of the beam.

[0031] The triangular steel plates (12) are arranged at equal intervals and connected to the connecting plate (14) on the top of the pier.

[0032] The SMA disc spring group (9) is arranged between the adjacent triangular steel plate (12) and the limiting baffle (11). The steel rod (7) passes through the horizontal guide groove (15) of all the limiting baffles (11), the SMA disc spring group (9) and the round hole (16) of the triangular steel plate (12) in sequence. The right end nut (10) and the left end nut (8) of the steel rod are tightened at the threaded teeth (17) at the end of the steel rod (7) to form a bridge transverse damper with reset and graded energy dissipation functions.

[0033] The bottom connecting plate (6) is installed at the bottom of the bridge beam (1) by means of the bottom connecting plate bolt (5), and the top connecting plate (14) is installed at the top of the pier (2) by means of the top connecting plate bolt (13).

[0034] Figure 4 This is the initial state of the bridge transverse damper (3) with reset and graded energy dissipation functions. At this time, the SMA disc spring group (9) and the triangular steel plate (12) are in the initial position and have not been deformed. The horizontal guide groove (15) is set to meet the longitudinal elongation and shortening caused by the temperature change of the beam.

[0035] like Figure 5 As shown, under frequent earthquakes, when a small relative displacement occurs between the bridge beam (1) and the top of the pier (2), the bridge transverse damper (3) is in the first stage of energy dissipation. The SMA disc spring group (9) compresses and deforms to dissipate energy and provides the system with the ability to reset. The triangular steel plate (12) is still in the elastic stage and has not undergone significant deformation.

[0036] like Figure 6 As shown, under a rare earthquake, when a large relative displacement occurs between the bridge beam (1) and the top of the pier (2), the bridge transverse damper (3) is in the second energy dissipation state, the SMA disc spring group (9) is completely compressed, and the triangular steel plate (12) undergoes plastic deformation, dissipating earthquake energy.

[0037] The above description is only a preferred embodiment of this patent, but the scope of protection of this patent is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art within the scope of the technology disclosed in this patent, based on the technical solution and patent concept of this patent, should be within the scope of protection of this patent.

Claims

1. A bridge transverse damper with reset and graded energy dissipation functions, mainly composed of a beam bottom connecting plate (6), a limiting baffle (11), beam bottom connecting plate bolts (5), pier top connecting plate bolts (13), a right end nut (10) of a steel rod, a left end nut (8) of a steel rod, a steel rod (7), an SMA disc spring group (9), a triangular steel plate (12), and a pier top connecting plate (14), characterized in that... The steel rod (7) has threaded teeth (17) at both ends, the limiting baffle (11) has a horizontal guide groove (15), the upper part of the triangular steel plate (12) has a round hole (16), the limiting baffle (11) is connected to the bottom beam connecting plate (6), the triangular steel plate (12) is connected to the top pier connecting plate (14), the SMA disc spring group (9) is arranged between the adjacent triangular steel plate (12) and the limiting baffle (11), the steel rod (7) passes through the horizontal guide groove (15) of all the limiting baffles (11), the SMA disc spring group (9) and the round hole (16) of the triangular steel plate (12) in sequence, the nut (10) at the right end of the steel rod and the nut (8) at the left end of the steel rod are tightened at the threaded teeth (17) at the end of the steel rod (7) to form a bridge transverse damper with reset and graded energy dissipation functions.

2. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that: The limiting baffle (11) is connected to the bottom connecting plate (6) of the beam.

3. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that... The triangular steel plate (12) is connected to the pier top connecting plate (14).

4. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that: The limiting baffle (11) is provided with a horizontal guide groove (15), the height of which is greater than the diameter of the steel rod (7).

5. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that: The upper part of the triangular steel plate (12) is provided with a circular hole (16), the diameter of which is equal to the inner diameter of the SMA disc spring group (9).

6. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that... Limiting baffles (11) are arranged at equal intervals.

7. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that... Triangular steel plates (12) are arranged at equal intervals.

8. A bridge lateral damper with reset and graded energy dissipation functions as described in claim 1, characterized in that... The SMA disc spring group (9) is arranged between the adjacent triangular steel plate (12) and the limiting baffle (11).

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