A new type of bridge transverse damper with hierarchical reset and multi-stage energy dissipation function

Abstract

The utility model relates to a kind of bridge new type transverse damper with hierarchical reset and multi-stage energy dissipation function, mainly by beam bottom connecting pin seat, beam bottom connecting bolt, beam bottom connecting bolt, steel pole one, end cap one, spring, beam bottom connecting side cylinder section, middle cylinder section, friction sleeve cover one, friction sleeve, support steel pole, steel pole two, friction sleeve cover two, X-shaped steel plate, SMA disc spring group, pier top connecting side cylinder section, end cap two, pier top connecting bolt, pier top connecting bolt, pier top connecting pin seat composition.Bridge new type transverse damper is compressed to be first stage energy dissipation state, friction sleeve friction energy dissipation, spring provides restoring force;Stretch and when displacement is small, second stage energy dissipation state, friction sleeve friction energy dissipation, SMA disc spring group between end cap two and adjacent X-shaped steel plate compresses deformation energy dissipation, and provides reset ability;Stretch and when displacement is large, third stage energy dissipation state, friction sleeve friction energy dissipation, SMA disc spring group is completely compressed, X-shaped steel plate deforms and dissipates seismic 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 novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions. Background Technology

[0002] Frequent earthquakes in my country have seriously threatened the safety of critical transportation infrastructure such as bridges. Therefore, energy dissipation and damping technologies have become an important means of dissipating seismic energy in modern bridge seismic design. In bridge seismic design, dampers can dissipate seismic energy through frictional slip or plastic deformation, and are widely used due to their simple structure and stable performance. However, traditional friction dampers suffer from a lack of self-resetting capability and a single energy dissipation mechanism, failing to meet the multi-stage seismic fortification requirements of bridges. Therefore, there is an urgent need to develop a new type of transverse damper for bridges with graded reset and multi-stage energy dissipation functions. Summary of the Invention

[0003] To address the aforementioned problems, this utility model relates to a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions. It mainly comprises a beam bottom connecting pin seat, beam bottom connecting bolt, beam bottom connecting pin, steel rod one, end cap one, spring, beam bottom connecting side tube section, middle tube section, friction sleeve cap one, friction sleeve, supporting steel rod, steel rod two, friction sleeve cap two, X-shaped steel plate, SMA disc spring group, pier top connecting side tube section, end cap two, pier top connecting pin, pier top connecting bolt, and pier top connecting pin seat. The beam bottom connecting pin seat is connected to steel rod one via the beam bottom connecting pin. One end face of end cap one is connected to steel rod one, and the other end face is connected to the spring. One end of the beam bottom connecting side tube section is connected to end cap one, and the spring is placed inside the beam bottom connecting side tube section. The other end of the beam bottom connecting side tube section is connected to one end of the middle tube section. Friction sleeve cap one is connected to one end of the friction sleeve. One end of the supporting steel rod is connected to steel rod two, and the other end is connected to the inner wall of the friction sleeve. Friction sleeve cover two passes through steel rod two and is connected to the other end of friction sleeve, which is placed inside the middle section. X-shaped steel plates are evenly distributed inside the pier top connecting side section and connected to the inner wall of the pier top connecting side section. An SMA disc spring group is arranged on the side of each X-shaped steel plate adjacent to friction sleeve cover two. One end of the pier top connecting side section is connected to end cover two. Steel rod two passes through all X-shaped steel plates, SMA disc spring groups, and end cover two within the pier top connecting side section. The other end of the pier top connecting side section is connected to the other end of the middle section. Pier top connecting pin seat is connected to steel rod two via pier top connecting pin. Beam bottom connecting pin seat is anchored to the bottom of the bridge beam via beam bottom connecting bolts, and pier top connecting pin seat is anchored to the top of the pier via pier top connecting bolts, forming a new type of transverse damper for bridges with graded reset and multi-stage energy dissipation functions.

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

[0005] Based on usage requirements, determine the dimensions of steel rod one, steel rod two, spring, support steel rod, friction sleeve, middle section, beam bottom connecting side section, pier top connecting side section, SMA disc spring group and X-shaped steel plate, as well as the combination method of SMA disc spring group. The inner wall of the middle section and the outer wall of the friction sleeve are both sandblasted.

[0006] One end of the steel rod has a round hole for connecting to the bottom of the beam. The connecting pin for connecting to the bottom of the beam passes through the round hole and connects the connecting pin seat to the steel rod.

[0007] One end face of end cap one is connected to steel rod one, and the other end face is connected to spring. One end of the bottom connecting side tube section of the beam is connected to end cap one. Spring is placed inside the bottom connecting side tube section of the beam. The other end of the bottom connecting side tube section of the beam is connected to one end of the middle tube section.

[0008] One end of the friction sleeve cover is connected to one end of the friction sleeve, one end of the support steel rod is connected to the second steel rod, and the other end is connected to the inner wall of the friction sleeve.

[0009] The friction sleeve cover has a circular hole in the center, the diameter of which is equal to the diameter of the steel rod. The friction sleeve cover passes through the steel rod and is connected to the other end of the friction sleeve. The friction sleeve is placed inside the middle section of the cylinder.

[0010] The connecting side tube section at the top of the pier has X-shaped steel plates that are evenly distributed and connected to the inner wall of the connecting side tube section at the top of the pier. Each X-shaped steel plate has an SMA disc spring group arranged on one side adjacent to the friction sleeve cover two. One end of the connecting side tube section at the top of the pier is connected to the end cover two.

[0011] Steel rod two penetrates through the top of the pier and connects to all the X-shaped steel plates, SMA disc spring group and end cap two inside the side tube section. The other end of the side tube section connected to the top of the pier is connected to the other end of the middle tube section. The X-shaped steel plate has a circular hole in the center, the diameter of which is equal to the diameter of steel rod two. The inner diameter of the SMA disc spring group is equal to the diameter of steel rod two. End cap two has a circular hole in the center, the diameter of which is equal to the diameter of steel rod two.

[0012] One end of the steel rod has a connecting hole at the top of the pier. The connecting pin at the top of the pier passes through the connecting hole to connect the connecting pin seat at the top of the pier to the steel rod.

[0013] The bottom connecting pin seat is anchored to the bottom of the bridge beam by the bottom connecting bolt, and the top connecting pin seat is anchored to the top of the pier by the top connecting bolt.

[0014] The main advantages of this utility model are:

[0015] This invention is a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions, suitable for use in bridge engineering for vibration reduction and energy dissipation.

[0016] The disc spring assembly, X-shaped steel plate, central cylindrical section, and friction sleeve dimensions in this utility model can be flexibly adjusted according to the site conditions to flexibly meet various needs.

[0017] In this invention, the disc spring and spring provide the system with graded reset capability, the friction between the friction sleeve and the middle cylinder section and the X-shaped steel plate provide multi-stage energy dissipation capability, the force is clear and the reliability is high.

[0018] The connection method of this utility model adopts welding or bolt connection in all aspects, and it is a replaceable damper. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation position of a new type of transverse damper for bridges with graded reset and multi-stage energy dissipation functions.

[0020] Figure 2 This is a schematic diagram of a novel transverse damper device for bridges with graded reset and multi-stage energy dissipation functions.

[0021] Figure 3 This is a schematic diagram of the assembly of a new type of transverse damper device for bridges with graded reset and multi-stage energy dissipation functions.

[0022] Figure 4 This is a schematic diagram of the initial state of a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions.

[0023] Figure 5 This is a schematic diagram of the first-stage energy dissipation state of a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions.

[0024] Figure 6 This is a schematic diagram of the second-stage energy dissipation state of a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions.

[0025] Figure 7 This is a schematic diagram of the third-stage energy dissipation state of a novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions. Figure Labels

[0026] Beam bottom connecting pin seat (1); Beam bottom connecting bolt (2); Beam bottom connecting pin (3); Beam bottom connecting round hole (4); Steel rod one (5); End cap one (6); Spring (7); Beam bottom connecting side tube section (8); Middle tube section (9); Friction sleeve cap one (10); Friction sleeve (11); Support steel rod (12); Steel rod two (13); Pier top connecting round hole (14); Friction sleeve cap two (15); Sleeve cap round hole (16); Steel plate round hole (17); X-shaped steel plate (18); SMA disc spring group (19); Pier top connecting side tube section (20); End cap two (21); End cap two round hole (22); Pier top connecting pin (23); Pier top connecting bolt (24); Pier top connecting pin seat (25); Bridge beam (26); Pier (27); New type of transverse damper for bridge (28); Bridge bearing (29). Detailed Implementation

[0027] 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.

[0028] like Figure 1 As shown, the new type of transverse damper (28) is installed between the bottom of the bridge beam (26) and the top of the pier (27), inside the bridge bearing (29), and mainly plays an energy dissipation role in the transverse direction of the bridge structure.

[0029] like Figure 2 , Figure 3 As shown, the new type of transverse damper for bridge (28) is mainly composed of beam bottom connecting pin seat (1), beam bottom connecting bolt (2), beam bottom connecting pin (3), steel rod one (5), end cap one (6), spring (7), beam bottom connecting side tube section (8), middle tube section (9), friction sleeve cap one (10), friction sleeve (11), support steel rod (12), steel rod two (13), friction sleeve cap two (15), X-shaped steel plate (18), SMA disc spring group (19), pier top connecting side tube section (20), end cap two (21), pier top connecting pin (23), pier top connecting bolt (24), and pier top connecting pin seat (25).

[0030] Based on the usage requirements, the dimensions of steel rod 1 (5), steel rod 2 (13), spring (7), support steel rod (12), friction sleeve (11), middle section (9), beam bottom connecting side section (8), pier top connecting side section (20), SMA disc spring group (19) and X-shaped steel plate (18) and the combination method of SMA disc spring group (19) are determined. The inner wall of the middle section (9) and the outer wall of the friction sleeve (11) are both sandblasted.

[0031] One end of the steel rod (5) has a beam bottom connection hole (4). The beam bottom connection pin (3) passes through the beam bottom connection hole (4) to connect the beam bottom connection pin seat (1) to the steel rod (5). One side of the end cap (6) is connected to the steel rod (5), and the other side is connected to the spring (7). One end of the beam bottom connection side tube section (8) is connected to the end cap (6). The spring (7) is placed inside the beam bottom connection side tube section (8). The other end of the beam bottom connection side tube section (8) is connected to one end of the middle tube section (9).

[0032] Friction sleeve cover one (10) is connected to one end of friction sleeve (11), and one end of support steel rod (12) is connected to steel rod two (13), and the other end is connected to the inner wall of friction sleeve (11). Friction sleeve cover two (15) has a sleeve cover round hole (16) in the center, the diameter of sleeve cover round hole (16) is equal to the diameter of steel rod two (13), friction sleeve cover two (15) passes through steel rod two (13) and is connected to the other end of friction sleeve (11), and friction sleeve (11) is placed in the middle section (9).

[0033] The X-shaped steel plates (18) inside the connecting side tube section (20) of the pier top are evenly distributed and connected to the inner wall of the connecting side tube section (20). Each X-shaped steel plate (18) is arranged with an SMA disc spring group (19) on one side adjacent to the friction sleeve cover (15). One end of the connecting side tube section (20) of the pier top is connected to the end cover (21). Steel rod two (13) penetrates all X-shaped steel plates (18), SMA disc spring group (19) and end cap two (21) in the pier top connecting side tube section (20). The other end of the pier top connecting side tube section (20) is connected to the other end of the middle tube section (9). The X-shaped steel plate (18) has a steel plate round hole (17) in the center. The diameter of the steel plate round hole (17) is equal to the diameter of steel rod two (13). The inner diameter of the SMA disc spring group (19) is equal to the diameter of steel rod two (13). The end cap two (21) has an end cap two round hole (22) in the center. The diameter of the end cap two round hole (22) is equal to the diameter of steel rod two (13).

[0034] One end of the steel rod (13) has a pier top connecting round hole (14). The pier top connecting pin (23) passes through the pier top connecting round hole (14) to connect the pier top connecting pin seat (25) to the steel rod (13).

[0035] The bottom connecting pin seat (1) is anchored to the bottom of the bridge beam (26) by the bottom connecting bolt (2), and the top connecting pin seat (25) is anchored to the top of the pier (27) by the top connecting bolt (24), forming a new type of transverse damper (28) for bridges with graded reset and multi-level energy dissipation functions.

[0036] like Figure 4The image shows the initial state of the new transverse damper (28) for the bridge. At this time, the friction sleeve (11) is in the initial position, and the spring (7), SMA disc spring group (19) and X-shaped steel plate (18) are in the initial state without deformation.

[0037] like Figure 5 As shown, when the new transverse damper (28) of the bridge is compressed, it enters the first stage of energy dissipation state. The friction sleeve (11) compresses the spring (7), the spring (7) provides elastic restoring force, and the friction sleeve (11) dissipates energy through friction.

[0038] like Figure 6 As shown, when the new transverse damper (28) of the bridge is stretched and the displacement is small, it enters the second energy consumption state. The friction sleeve (11) consumes energy through friction, and the SMA disc spring group (19) between the end cap (21) and the adjacent X-shaped steel plate (18) consumes energy through compression deformation and provides reset capability. The X-shaped steel plate (18) is in the elastic stage and no obvious deformation occurs.

[0039] like Figure 7 As shown, when the new transverse damper (28) of the bridge is stretched and has a large displacement, it enters the third energy dissipation state. The friction sleeve (11) dissipates energy through friction, the SMA disc spring group (19) is completely compressed, and the X-shaped steel plate (18) undergoes plastic deformation, dissipating seismic energy.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be within the protection scope of this patent.

Claims

1. A novel transverse damper for bridges with graded reset and multi-stage energy dissipation functions (28) is mainly composed of a beam bottom connecting pin seat (1), a beam bottom connecting bolt (2), a beam bottom connecting pin (3), a steel rod one (5), an end cap one (6), a spring (7), a beam bottom connecting side tube section (8), a middle tube section (9), a friction sleeve cap one (10), a friction sleeve (11), a supporting steel rod (12), a steel rod two (13), a friction sleeve cap two (15), an X-shaped steel plate (18), an SMA disc spring group (19), a pier top connecting side tube section (20), an end cap two (21), a pier top connecting pin (23), a pier top connecting bolt (24), and a pier top connecting pin seat (25). Its characteristic is that... One end of the steel rod (5) has a beam bottom connection hole (4). The beam bottom connection pin (3) passes through the beam bottom connection hole (4) to connect the beam bottom connection pin seat (1) to the steel rod (5). One end face of the end cap (6) is connected to the steel rod (5), and the other end face is connected to the spring (7). One end of the beam bottom connection side tube section (8) is connected to the end cap (6). The spring (7) is placed inside the beam bottom connection side tube section (8). The other end of the beam bottom connection side tube section (8) is connected to one end of the middle tube section (9). Friction sleeve cover one (10) is connected to one end of friction sleeve (11), one end of support steel rod (12) is connected to steel rod two (13), and the other end is connected to the inner wall of friction sleeve (11). Friction sleeve cover two (15) has a sleeve cover round hole (16) in the center. Friction sleeve cover two (15) passes through steel rod two (13) and is connected to the other end of friction sleeve (11). Friction sleeve (11) is placed in the middle section (9). The pier top connecting side section (20) has an X-shaped steel plate (18) inside. The X-shaped steel plate (18) is distributed and connected to the inner wall of the side cylinder section (20) connecting to the pier top. Each X-shaped steel plate (18) is arranged with an SMA disc spring group (19) on one side adjacent to the friction sleeve cover two (15). One end of the side cylinder section (20) connecting to the pier top is connected to the end cover two (21). The steel rod two (13) passes through all the X-shaped steel plates (18), SMA disc spring groups (19) and end cover two (21) in the side cylinder section (20) connecting to the pier top. The other end of the side cylinder section (20) connecting to the pier top is connected to the other end of the middle cylinder section (9). One end of rod 2 (13) has a pier top connecting round hole (14). The pier top connecting pin (23) passes through the pier top connecting round hole (14) to connect the pier top connecting pin seat (25) to the steel rod 2 (13). The beam bottom connecting pin seat (1) is anchored to the bottom of the bridge beam (26) through the beam bottom connecting bolt (2). The pier top connecting pin seat (25) is anchored to the top of the pier (27) through the pier top connecting bolt (24), forming a new type of bridge transverse damper (28) with graded reset and multi-level energy dissipation functions.

2. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function for bridges according to claim 1, characterized in that The inner wall of the middle section (9) and the outer wall of the friction sleeve (11) are both sandblasted.

3. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function of a bridge according to claim 1, characterized in that The spring (7) is placed inside the bottom connecting side tube section (8) of the beam, and the length of the spring (7) is equal to that of the bottom connecting side tube section (8).

4. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function of a bridge according to claim 1, characterized in that The diameter of the round hole (16) of the sleeve cap is equal to the diameter of the steel rod (13).

5. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function of a bridge according to claim 1, characterized in that The X-shaped steel plate (18) has a circular hole (17) in the center, and the diameter of the circular hole (17) is equal to the diameter of the steel rod (13).

6. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function of a bridge according to claim 1, characterized in that The inner diameter of the SMA disc spring group (19) is equal to the diameter of the steel rod two (13).

7. The new type of transverse damper with hierarchical reset and multi-stage energy dissipation function of a bridge according to claim 1, characterized in that The end cap 2 (21) has a round hole (22) in the center, and the diameter of the round hole (22) is equal to the diameter of the steel rod 2 (13).

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