Bridge shock-resistant tough elastic cable shock-absorbing device

Abstract

The utility model discloses an anti-seismic tough elastic cable damping device for a bridge, which belongs to the technical field of elastic cable damping devices for bridges, and comprises a bridge body, damping mechanisms are arranged on both sides of the bridge body, and limiting mechanisms are in threaded connection with both sides of the bridge body; the damping mechanism comprises an elastic cable body, a damper, two sets of mounting frames, two sets of fixing frames, a mounting plate, a sliding groove, a sliding rod, a connecting rod and a memory alloy plate, the two sets of mounting frames are fixedly connected to the front side and the rear side of the bridge body correspondingly, and the damping mechanism can conduct damping on the bridge body with various vibration stages; the bridge main body can be subjected to hierarchical damping in multiple modes, the damping effect of the bridge main body can be improved, the limiting mechanism can be installed at different positions of the bridge main body according to the use condition of the bridge main body, after installation is completed, the bridge main body can be limited in two modes, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge elastic cable damping device technical field, especially in bridge anti shock toughness elastic cable damping device. BACKGROUND

[0002] A kind of bridge anti shock toughness elastic cable damping device is a device for enhancing bridge seismic capacity, improve bridge structure toughness, when earthquake occurs, bridge will produce vibration and displacement, elastic cable damping device in elastic cable can occur elastic deformation under the action of earthquake force, by stretching and retracting to absorb and dissipate seismic energy, reduce the vibration amplitude of bridge structure, to reduce the damage effect of earthquake on bridge, in earthquake-prone areas, bridge faces higher seismic risk, using this elastic cable damping device can enhance the seismic capacity of bridge, guarantee the safety of bridge in earthquake, reduce the cost of post-earthquake repair and reconstruction.

[0003] Railway bridge structure is relatively large in rigidity, and the bridge structure in high-intensity seismic area faces very severe situation in seismic resistance. Simply supported beam bridge is a conventional structure widely used in railway bridges, and often accounts for the majority of bridge structures in a railway line. How to ensure and improve the structural safety of railway simply supported beam bridges, especially to ensure and improve the safety of simply supported beam bridges in high-intensity seismic areas or even under near-fault geological conditions, has become a hot issue of concern for bridge designers.

[0004] The existing patent (publication number: CN215104616U) outer cylinder, lower pressing rod, bottom rod and damping structure, the middle part of the lower pressing rod penetrates the outer cylinder, the lower pressing rod and the bottom rod are fixed through the flange structure, the bottom end of the bottom rod is movably fixed in the damping structure, and the lower pressing rod is driven to rotate when the lower pressing rod is pressed down. Because the anti-slip wear-resistant material is arranged between the side column and the inner groove, the first buffering is performed, and then the second buffering is performed through the upper flange and the lower flange to the damping structure at the bottom end, so that the use effect and the buffering capacity of the top end bridge are improved. When the top end bridge drives the lower pressing rod to move downward, the bottom rod rotates on the top plate and moves downward, presses the top plate to move downward, the positioning columns at both ends of the top plate move downward in the side plate, and the positioning and limiting effects are achieved. The adjusting bolt at the bottom end of the top plate presses the pressing plate downward, the pressing plate compresses a plurality of springs, and the load at the top end is buffered for the second time, so that the use effect is further improved.

[0005] In view of the above problems, the existing patent provides a solution, but the existing bridge anti shock toughness elastic cable damping is all using spring to dampen the bridge. Although this method can dampen the bridge, the damping effect of the spring has limitations, the damping effect is limited, and the spring cannot be quickly assembled according to the actual use condition, so the practicability is insufficient.

[0006] Therefore, a bridge anti shock toughness elastic cable damping device is provided. Practical new content

[0007] The utility model discloses a bridge anti-seismic toughness elastic cable damping device can solve the current bridge anti-seismic toughness elastic cable damping is all using spring etc. to bridge damping, this mode can though the bridge damping, but the damping effect of spring has the limitation, the effect of damping is limited, and cannot according to actual use condition quick assembly, the practicality is insufficient problem.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a bridge anti-seismic toughness elastic cable damping device, including bridge body: the both sides of bridge body are provided with damping mechanism, the both sides of bridge body are all screw -threaded connection and are limited position mechanism,

[0009] The damping mechanism includes elastic cable main part, damper, two groups of mounting bracket, two groups of fixed frame, mounting plate, sliding slot, sliding rod, connecting rod, memory alloy plate, two groups of mounting bracket are fixedly connected at the front side and the back side of bridge body respectively, two groups of fixed frame are fixedly connected on the inner wall of two groups of mounting bracket, the mounting plate is slidably connected on the inner wall of fixed frame, the damper is penetrated in the inner wall of mounting plate, the bottom of elastic cable main part is fixedly connected on the top of damper, the memory alloy plate is fixedly connected on the bottom of damper, the sliding slot is set up on the inner wall of fixed frame, the sliding rod is fixedly connected on the inner wall of sliding slot, the mounting plate is slid on the surface of sliding rod, and the connecting rod is rotated between memory alloy plate and fixed frame.

[0010] Preferably, the limiting mechanism includes a threaded rod, a limiting ring, a nut, and a threaded hole. The threaded hole is provided in the inner wall of the fixed frame and the mounting bracket. The threaded rod is threadedly connected to the inner wall of the threaded hole. The limiting ring is sleeved on the surface of the damper. The nut is threadedly connected to the surface of the threaded rod.

[0011] Preferably, the top of the bridge body is fixedly connected with a bridge main body. The top of the elastic cable main body is fixedly connected to the surface of the bridge main body.

[0012] Preferably, the mounting bracket has a slot formed in the interior thereof. The size of the slot is adapted to the size of the fixed frame.

[0013] Preferably, the fixed frame and the memory alloy plate are both provided with mounting slots on the two sides thereof. The two mounting slots are both fixedly connected with hinged supports.

[0014] Preferably, the two ends of the connecting rod are sleeved on the surfaces of the two hinged supports respectively. The bottom of the memory alloy plate is arc-shaped.

[0015] Preferably, the mounting plate is provided with a mounting hole in the inner wall thereof. The damper is movably arranged in the inner wall of the mounting hole.

[0016] Preferably, the memory alloy plate is movably connected to the bottom of the mounting plate, and the size of the memory alloy plate is matched with the size of the inner wall of the fixed frame.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The shock absorption mechanism can absorb the vibration of the bridge body, and compared with the spring, the shock absorption mechanism can absorb the vibration of the bridge body in multiple ways, thereby improving the shock absorption effect of the bridge body.

[0019] 2、The limiting mechanism can be installed at different positions of the bridge body according to the use of the bridge body, and after installation, the limiting mechanism can limit the bridge body in two ways, thereby improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a whole structure diagram of the bridge body elastic cable body shock absorption of the utility model;

[0021] Figure 2 is a partial structure diagram of the bottom of the bridge body of the utility model;

[0022] Figure 3 is a whole structure diagram of the utility model Figure 2 is an enlarged structure diagram of position A in the utility model;

[0023] Figure 4 is a partial structure diagram of the bottom of the fixed frame of the utility model;

[0024] Figure 5 is a whole structure diagram of the limiting mechanism of the utility model.

[0025] In the drawings, 1 is a shock absorption mechanism; 11 is an elastic cable body; 12 is a damper; 13 is a mounting frame; 14 is a fixed frame; 15 is a mounting plate; 16 is a sliding groove; 17 is a sliding rod; 18 is a connecting rod; 19 is a memory alloy plate; 2 is a bridge body; 3 is a bridge body; 4 is a limiting mechanism; 41 is a threaded rod; 42 is a limiting ring; 43 is a nut; 44 is a threaded hole; 45 is a slot; 5 is a mounting groove; 6 is a hinged support. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer toFigures 1-5 The utility model provides technical schemes:

[0028] A bridge anti-seismic ductility elastic cable damping device, including bridge body 2: bridge body 2 both sides are provided with damping mechanism 1, and the both sides of bridge body 2 are all threadedly connected with limiting mechanism 4;

[0029] Damping mechanism 1 includes elastic cable main body 11, damper 12, two groups of mounting bracket 13, two groups of fixed frame 14, mounting plate 15, sliding slot 16, sliding rod 17, connecting rod 18, memory alloy plate 19, two groups of mounting bracket 13 are fixedly connected at the front side and the back side of bridge body 2 respectively, two groups of fixed frame 14 are fixedly connected at the inner wall of two groups of mounting bracket 13 respectively, mounting plate 15 is slidably connected at the inner wall of fixed frame 14, damper 12 is penetrated in the inner wall of mounting plate 15, the bottom of elastic cable main body 11 is fixedly connected at the top of damper 12, memory alloy plate 19 is fixedly connected at the bottom of damper 12, sliding slot 16 is set up in the inner wall of fixed frame 14, sliding rod 17 is fixedly connected at the inner wall of sliding slot 16, and mounting plate 15 slides on the surface of sliding rod 17, and connecting rod 18 rotates between memory alloy plate 19 and fixed frame 14.

[0030] In the embodiment: bridge main body 3 can be connected with damper 12 by setting elastic cable main body 11, bridge main body 3 can be damped by setting damper 12, fixed frame 14 can be installed by setting mounting bracket 13, mounting plate 15 can be installed by setting fixed frame 14, damper 12 can be installed by setting mounting plate 15, sliding rod 17 can be installed by setting sliding slot 16, mounting plate 15 can be moved up and down by setting sliding rod 17, the position of memory alloy plate 19 can be limited by setting connecting rod 18, bridge main body 3 can be damped by setting memory alloy plate 19, and when the vibration is larger, damper 12 drives memory alloy plate 19 to move upwards, when moving to mounting plate 15, then mounting plate 15 can be abutted, by continuing to abut, when mounting plate 15 slides to the highest point on the surface of sliding rod 17, at this moment, the arc shape at the bottom of memory alloy plate 19 can be driven upwards by damper 12, when driving, the arc shape at the bottom of memory alloy plate 19 can be deformed upwards, so that the arc surface is in the reverse state, and bridge main body 3 can be further damped.

[0031] Specifically, as shown in Figure 5 Limiting mechanism 4 includes threaded rod 41, limiting ring 42, nut 43 and threaded hole 44, threaded hole 44 is set up in the inner wall of fixed frame 14 and mounting bracket 13, threaded rod 41 is threadedly connected in the inner wall of threaded hole 44, limiting ring 42 is sleeved on the surface of damper 12, and nut 43 is threadedly connected on the surface of threaded rod 41.

[0032] Specifically, as shown in Figure 2 The top of the bridge 2 is fixedly connected with the bridge main body 3, and the top of the elastic cable main body 11 is fixedly connected to the surface of the bridge main body 3.

[0033] Specifically, as shown in Figure 5 The inside of the mounting frame 13 is provided with a slot 45, and the size of the slot 45 is matched with the size of the fixed frame 14.

[0034] In this embodiment: by setting the threaded rod 41, the fixed frame 14 and the mounting frame 13 can be connected, by setting the limiting ring 42, the position of the damper 12 can be limited, by setting the threaded hole 44, the threaded rod 41 can be installed, by setting the nut 43, the tightness of the threaded rod 41 can be controlled, and by setting the slot 45, the position of the fixed frame 14 can be limited.

[0035] Specifically, as shown in Figure 4 The two sides of the fixed frame 14 and the two sides of the memory alloy plate 19 are provided with mounting grooves 5, and the inside of the two groups of mounting grooves 5 is fixedly connected with the hinged support 6.

[0036] Specifically, as shown in Figure 4 The two ends of the connecting rod 18 are respectively sleeved on the surfaces of the two groups of hinged supports 6, and the bottom of the memory alloy plate 19 is arc-shaped.

[0037] In this embodiment: by setting the mounting groove 5, the hinged support 6 can be installed, by setting the hinged support 6, the connecting rod 18 can be installed, and by setting the bottom of the memory alloy plate 19 as arc-shaped, the memory alloy plate 19 can be deformed according to the specific use.

[0038] Specifically, as shown in Figure 2 , Figure 4 The inner wall of the mounting plate 15 is provided with a mounting hole, and the damper 12 is movably arranged in the inner wall of the mounting hole.

[0039] Specifically, as shown in Figure 2 , Figure 4 The memory alloy plate 19 is movably connected to the bottom of the mounting plate 15, and the size of the memory alloy plate 19 is matched with the size of the inner wall of the fixed frame 14.

[0040] In this embodiment: by setting the mounting hole, the damper 12 can be installed, and by matching the size of the memory alloy plate 19 with the size of the inner wall of the fixed frame 14, the memory alloy plate 19 can move in the fixed frame 14.

[0041] Working principle: when the user needs to reduce the shock of the bridge body 3, first can be fixed in the fixed frame 14 in the inner wall of the mounting frame 13, then the damper 12 is installed to the inside of the mounting plate 15, after completion, the user can fix the top of the elastic cable body 11 to the surface of the bridge body 3, the bottom of the elastic cable body 11 is fixedly connected to the top of the damper 12, after completion, the memory alloy plate 19 is fixedly connected with the damper 12, then when the bridge body 3 vibrates, first, the elastic cable body 11 is in the elastic state, which can provide self-resetting ability for the bridge body 3, so that the bridge body 3 can recover to the initial position as far as possible, reduce the residual displacement of the structure after the earthquake, and reduce the difficulty of resetting the structure after the earthquake, then through the action of the damper 12, the vibration frequency of the bridge body 3 can be real-time activity, which can better reduce the shock, when the vibration is large, the damper 12 moves to the maximum value, the damper 12 can drive the memory alloy plate 19 to move upward, when moving, the bottom of the mounting plate 15 can be resisted, when the mounting plate 15 slides to the maximum value on the surface of the slide rod 17, the shape of the memory alloy plate 19 can be deformed, then when the above situation cannot solve the vibration, at this time, the damper 12 can pull the memory alloy plate 19 to continue moving upward, when moving, the connecting rod 18 can limit the memory alloy plate 19, when the limit reaches the maximum value, at this time, the damper 12 can pull the middle position of the memory alloy plate 19 to make the middle of the memory alloy plate 19 deform, the bottom arc of the memory alloy plate 19 is pulled into the top arc, so as to reduce the shock of the bridge body 3 in various vibration levels in various ways, then when the user needs to quickly install the device, the user can first insert the fixed frame 14 into the inside of the mounting frame 13, after completion, the user can fix the fixed frame 14 in the inside of the mounting frame 13 by using the threaded rod 41. The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bridge seismic resilience flexible cable damping device, comprising a bridge body (2), characterized in that: The bridge body (2) is provided with a damping mechanism (1) on both sides, and a limiting mechanism (4) is threadedly connected to both sides of the bridge body (2); The damping mechanism (1) comprises an elastic cable body (11), a damper (12), two groups of mounting racks (13), two groups of fixed frames (14), a mounting plate (15), a sliding groove (16), a sliding rod (17), a connecting rod (18) and a memory alloy plate (19), the two groups of mounting racks (13) are fixedly connected to the front side and the rear side of the bridge body (2) respectively, the two groups of fixed frames (14) are fixedly connected to the inner walls of the two groups of mounting racks (13) respectively, the mounting plate (15) is slidably connected to the inner wall of the fixed frame (14), the damper (12) penetrates the inner wall of the mounting plate (15), the bottom of the elastic cable body (11) is fixedly connected to the top of the damper (12), the memory alloy plate (19) is fixedly connected to the bottom of the damper (12), the sliding groove (16) is formed in the inner wall of the fixed frame (14), the sliding rod (17) is fixedly connected to the inner wall of the sliding groove (16), the mounting plate (15) slides on the surface of the sliding rod (17), and the connecting rod (18) rotates between the memory alloy plate (19) and the fixed frame (14).

2. A bridge seismic resilience and flexibility cable damping device according to claim 1, characterized in that: The limiting mechanism (4) comprises a threaded rod (41), a limiting ring (42), a nut (43) and a threaded hole (44), the threaded hole (44) is formed in the inner walls of the fixed frame (14) and the mounting rack (13), the threaded rod (41) is threadedly connected to the inner wall of the threaded hole (44), the limiting ring (42) is sleeved on the surface of the damper (12), and the nut (43) is threadedly connected to the surface of the threaded rod (41).

3. The bridge aseismic ductility cable damper of claim 1, wherein: The top of the bridge body (2) is fixedly connected with a bridge main body (3), and the top of the elastic cable body (11) is fixedly connected to the surface of the bridge main body (3).

4. The bridge aseismic ductility cable damper of claim 1, wherein: The inside of the mounting rack (13) is provided with a slot (45), and the size of the slot (45) is matched with the size of the fixed frame (14).

5. A bridge seismic resilience and flexibility cable damping device according to claim 1, characterized in that: The two sides of the fixed frame (14) and the two sides of the memory alloy plate (19) are provided with mounting grooves (5), and the two groups of mounting grooves (5) are fixedly connected with hinged supports (6) respectively.

6. A bridge seismic resilience and flexibility cable damping device according to claim 1, characterized in that: The two ends of the connecting rod (18) are sleeved on the surfaces of the two groups of hinged supports (6), and the bottom of the memory alloy plate (19) is arc-shaped.

7. A bridge seismic resilience and flexibility cable damping device according to claim 1, characterized in that: The inner wall of the mounting plate (15) is provided with a mounting hole, and the damper (12) is movably arranged in the inner wall of the mounting hole.

8. The bridge seismic resilience and flexibility cable damping device according to claim 1, characterized in that: The memory alloy plate (19) is movably connected to the bottom of the mounting plate (15), and the size of the memory alloy plate (19) is matched with the size of the inner wall of the fixed frame (14).

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