Shock-proof and shock-absorption device for bridge
By combining the main and secondary buffer components, the problems of buffering lag and low energy dissipation efficiency of bridge vibration damping devices in response to multidimensional vibrations are solved, achieving omnidirectional dissipation and uniform load distribution, thereby improving the seismic performance and system stability of the bridge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 刘明
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-10
AI Technical Summary
Existing bridge vibration reduction devices have a delayed buffering response to multidimensional vibrations, limited energy dissipation efficiency, and lack a multi-level coordinated vibration reduction mechanism, making it difficult to cope with dynamic loads under complex working conditions.
The system employs a combination design of main and secondary buffer components, including friction dampers, viscous dampers, springs, and support rods. The coupling effect of the friction dampers and springs generates dual energy dissipation, and the linkage between the sliding rods and sliding sleeves achieves bidirectional buffering, forming a couple effect and improving system stability.
It effectively reduces peak acceleration, achieves omnidirectional dissipation, eliminates stress concentration, improves the seismic performance of bridges, ensures uniform load distribution, and enhances system stability and vibration reduction effect.
Smart Images
Figure CN224106276U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bridge damping technical field, especially be related to a shockproof damping device for bridge. BACKGROUND
[0002] Bridge shockproof damping technology is one of the core research directions in civil engineering field to deal with earthquake disasters. With the development of modern transportation network, bridge as a key node engineering, its seismic performance is directly related to the reliability of regional traffic lifeline and post-earthquake emergency rescue efficiency.
[0003] Traditional bridge damping device depends on single damping structure (such as metal damper or single viscous damper), and its defects are as follows: the buffer response of multi-dimensional vibration (such as horizontal-vertical coupled vibration) is lagging behind; the energy dissipation efficiency is limited by the elastic limit of material, and fatigue failure is easy to occur in long-term use; there is lack of multi-stage coordinated damping mechanism, and it is difficult to cope with dynamic load under complex working conditions.
[0004] Therefore, we provide a shockproof damping device for bridge to solve the above problems. INVENTION CONTENTS
[0005] The utility model discloses a shockproof damping device for bridge, through the cooperation of main buffer assembly and auxiliary buffer assembly, solve the shockproof damping device for bridge in prior art, the problem that energy dissipation mechanism is single and damping structure is independent and cannot be mutually matched.
[0006] To solve the above technical problems, the utility model is realized through the following technical schemes.
[0007] The utility model discloses a shockproof damping device for bridge, including mounting panel, the mounting panel quantity is two, and two The mounting panel is fixedly connected with mounting seat between, the inboard of mounting seat is rotatably connected with viscous damper through the pivot, the one side of mounting panel is fixedly connected with damping support; The one side of mounting panel is provided with main buffer assembly, and main buffer assembly includes the support ring of fixed connection one side of damping support, the friction damper of one side swing joint with support ring, the fender ring of fixed connection with the surface and telescopic end of friction damper, the first spring of cover set in the surface of friction damper;The surface of viscous damper is provided with auxiliary buffer assembly, and auxiliary buffer assembly includes the slide rod of fixed connection telescopic end surface of viscous damper, the slip sleeve of surface sliding connection with slide rod, the support rod of swing joint with the surface of slip sleeve, the second spring of cover set in the surface of slide rod.
[0008] The utility model further sets up, two ends of first spring are fixedly connected with the baffle ring of friction damper surface and the baffle ring of friction damper telescopic end respectively, can be damped to the upper end face of damping support through the setting friction damper, reduces its swing amplitude, through the cooperation of first spring and baffle, energy loss is produced in the compression process of first spring, further improves the buffering effect of the upper end face of damping support.
[0009] The utility model further sets up, the number of friction damper is eight, and it is equal angle circumferential array arrangement, one end of friction damper is movably connected with the damping support surface, can buffer the whole plane swing through the setting eight friction dampers, and the buffering range is wide.
[0010] The utility model further sets up, the damping support one side is provided with mounting hole, and mounting bolt is arranged in the mounting hole cavity.
[0011] The utility model further sets up, one end of slide rod is fixedly connected with limiting block, one end of second spring is fixedly connected with one side of limiting block, the other end of second spring is fixedly connected with one side of sliding sleeve, through the cooperation of slide rod and sliding sleeve, the up and down vibration on the bridge deck or the horizontal vibration of bridge pier is all buffered through viscous damper, when viscous damper compression or rebound, will drive sliding sleeve to slide on slide rod through support rod, then drive another side viscous damper through another support rod, make its both sides compression or rebound simultaneously, and the compression rebound distance is same, realize bidirectional buffering function, ensure that the damper of both sides generates viscous resistance synchronously, realize load even distribution.
[0012] The utility model further sets up, the number of slide rod is four, and the other end of support rod is movably connected with the surface of viscous damper.
[0013] The utility model has the advantages of the following.
[0014] 1. The utility model discloses a main buffering subassembly and first spring coupling effect, in initial vibration stage, produces double energy dissipation of coulomb friction and elastic deformation, effectively reduces peak acceleration, eight equal angle distribution friction dampers constitute annular buffer array, realize omnidirectional dissipation of arbitrary direction horizontal vibration, cooperate with the three -dimensional support structure of damping support, eliminate the stress concentration phenomenon of traditional unidirectional damper.
[0015] 2. The utility model discloses that the axial movement of viscous damper is converted into the linkage of symmetrical support rod through slide rod and sliding sleeve mechanism in vice buffering subassembly, makes both sides damper compression or stretch synchronously, forms couple effect, eliminates the device deflection caused by one -sided impact, improves system stability, and the main buffering subassembly and vice buffering subassembly form orthogonal arrangement, can independently respond to horizontal shear and vertical compression deformation.
[0016] Of course, implementing any product of the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced.
[0018] Figure 1 It is a perspective view of a shock-absorbing and damping device for a bridge.
[0019] Figure 2 It is a left view of a shock-absorbing and damping device for a bridge.
[0020] Figure 3 It is a perspective view of a viscous damper in a shock-absorbing and damping device for a bridge.
[0021] Figure 4 It is a perspective view of a friction damper in a shock-absorbing and damping device for a bridge.
[0022] Figure 5 It is a matching view of a support ring and a friction damper in a shock-absorbing and damping device for a bridge.
[0023] In the drawings: 1, mounting plate; 2, mounting seat; 3, viscous damper; 4, shock-absorbing support; 5, support ring; 6, friction damper; 7, stop ring; 8, first spring; 9, sliding rod; 10, sliding sleeve; 11, support rod; 12, second spring; 13, mounting hole; 14, mounting bolt; 15, limiting block. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, not all the embodiments.
[0025] Embodiment 1
[0026] Please refer to Figures 1-5The utility model relates to a shockproof and shock attenuation device for bridge, including mounting plate 1, the quantity of mounting plate 1 is two, and two mounting plate 1 are fixedly connected with mounting seat 2 between, the inboard of mounting seat 2 is swingedly connected with viscous damper 3 through the pivot, and the one side of mounting plate 1 is fixedly connected with shock absorption support 4, the one side of mounting plate 1 is provided with main buffer assembly, and main buffer assembly includes the support ring 5 of fixed connection in the one side of shock absorption support 4, and the friction damper 6 of swing connection with the one side of support ring 5, and the blocking ring 7 of fixed connection with the surface and telescopic end of friction damper 6, the first spring 8 of setting in the surface of friction damper 6, the surface of viscous damper 3 is provided with auxiliary buffer assembly, and auxiliary buffer assembly includes the slide bar 9 of fixed connection in the surface of telescopic end of viscous damper 3, and the sliding sleeve 10 of sliding connection with the surface of slide bar 9, and the support rod 11 of swing connection with the surface of sliding sleeve 10, and the second spring 12 of setting in the surface of slide bar 9.
[0027] Further supplement: mounting plate 1 and support ring 5 are integrally formed, ensure the structural strength of support ring 5, shock absorption support 4 is fixedly connected with mounting plate 1 through mounting bolt 14, the quantity of shock absorption support 4 is two, one shock absorption support 4 is fixedly connected with the bottom of bridge deck through mounting bolt 14, and the other shock absorption support 4 is fixedly connected with the surface of pier through mounting bolt 14, make bridge deck, pier and the device form a triangular support structure, reinforce bridge deck, and the shock absorption support 4 fixedly connected with bridge deck is buffered to bridge deck transverse vibration, and the shock absorption support 4 fixedly connected with the surface of pier is buffered to pier vertical vibration.
[0028] Example 2
[0029] Please refer to Figures 1-5 On the basis of example 1, the first spring 8 both ends are fixedly connected with the blocking ring 7 of the surface of friction damper 6, the blocking ring 7 of telescopic end of friction damper 6, the quantity of friction damper 6 is eight, and presents equiangular angle circumferential array arrangement, and one end of friction damper 6 is swingedly connected with the surface of shock absorption support 4, and the one side of shock absorption support 4 is provided with mounting hole 13, and mounting hole 13 inner chamber is provided with mounting bolt 14, and one end of slide bar 9 is fixedly connected with limit block 15, and one end of second spring 12 is fixedly connected with the one side of limit block 15, and the other end of second spring 12 is fixedly connected with the one side of sliding sleeve 10, and the quantity of slide bar 9 is four, and the other end of support rod 11 is swingedly connected with the surface of viscous damper 3.
[0030] Further supplement: by setting the friction damper 6, the upper end surface of the shock support 4 can be damped, and the swing amplitude is reduced. Through the cooperation of the first spring 8 and the baffle, energy loss is generated during the compression of the first spring 8, and the buffering effect of the upper end surface of the shock support 4 is further improved. By setting eight friction dampers 6, the entire plane can be buffered, and the buffering range is wide. Through the cooperation of the slide rod 9 and the slide sleeve 10, the up-down vibration of the bridge deck or the horizontal vibration of the pier is buffered by the viscous damper 3. When the viscous damper 3 is compressed or rebounded, the slide sleeve 10 is driven to slide on the slide rod 9 through the support rod 11. Then, the other side of the viscous damper 3 is driven by another support rod 11, so that the two sides are compressed or rebounded at the same time, and the compression and rebound distances are the same. The bidirectional buffering function is realized, the viscous dampers on both sides are synchronized to generate viscous resistance, and the load is evenly distributed.
[0031] The working principle of the utility model is as follows: one shock support 4 is fixedly connected with the bottom of the bridge deck through the mounting bolt 14, and the other shock support 4 is fixedly connected with the surface of the pier through the mounting bolt 14, so that the bridge deck, the pier and the device form a triangular support structure, the bridge deck is reinforced, the shock support 4 fixedly connected with the bridge deck buffers the transverse vibration of the bridge deck, the shock support 4 fixedly connected with the surface of the pier buffers the vertical vibration of the pier, and the friction damper 6 can damp the upper end surface of the shock support 4, and the swing amplitude is reduced. Through the cooperation of the first spring 8 and the baffle, energy loss is generated during the compression of the first spring 8, and the buffering effect of the upper end surface of the shock support 4 is further improved.
[0032] The up-down vibration of the bridge deck or the horizontal vibration of the pier is buffered by the viscous damper 3. When the viscous damper 3 is compressed or rebounded, the slide sleeve 10 is driven to slide on the slide rod 9 through the support rod 11. Then, the other side of the viscous damper 3 is driven by another support rod 11, so that the two sides are compressed or rebounded at the same time, and the compression and rebound distances are the same. The bidirectional buffering function is realized, the viscous dampers on both sides are synchronized to generate viscous resistance, and the load is evenly distributed.
[0033] The above only describes certain exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.
Claims
1. An anti-vibration and shock absorbing device for bridges, comprising a mounting plate (1), characterized in that: The mounting plate (1) is two, and two mounting plates (1) are fixedly connected with mounting seat (2), the inner side of mounting seat (2) is movably connected with viscous damper (3) through rotating shaft, one side of mounting plate (1) is fixedly connected with shock absorbing support (4); The mounting plate (1) is provided with a main buffer assembly on one side, the main buffer assembly comprises a support ring (5) fixedly connected on one side of the shock absorbing support (4), a friction damper (6) movably connected on one side of the support ring (5), a stop ring (7) fixedly connected with the surface and the telescopic end of the friction damper (6), a first spring (8) sleeved on the surface of the friction damper (6); The surface of the viscous damper (3) is provided with a secondary buffer assembly, the secondary buffer assembly comprises a slide rod (9) fixedly connected on the surface of the telescopic end of the viscous damper (3), a slide sleeve (10) slidably connected with the surface of the slide rod (9), a support rod (11) movably connected with the surface of the slide sleeve (10), and a second spring (12) sleeved on the surface of the slide rod (9).
2. A shock and vibration absorbing device for bridges according to claim 1, characterized in that: The first spring (8) is fixedly connected with the stop ring (7) on the surface of the friction damper (6) and the stop ring (7) on the telescopic end of the friction damper (6) respectively.
3. A shock and vibration absorbing device for bridges according to claim 1, characterized in that: The number of friction dampers (6) is eight, and they are arranged in an equiangular circumferential array, one end of the friction damper (6) is movably connected with the surface of the shock absorbing support (4).
4. The shock and vibration absorbing device for bridges according to claim 1, characterized in that: The shock absorbing support (4) is provided with a mounting hole (13) on one side, and the mounting hole (13) is provided with a mounting bolt (14) in the inner cavity.
5. The shock and vibration absorbing device for bridges according to claim 1, characterized in that: One end of the slide rod (9) is fixedly connected with a limiting block (15), one end of the second spring (12) is fixedly connected with one side of the limiting block (15), and the other end of the second spring (12) is fixedly connected with one side of the slide sleeve (10).
6. A shock and vibration absorbing device for bridges according to claim 1, characterized in that: The number of slide rods (9) is four, and the other end of the support rod (11) is movably connected with the surface of the viscous damper (3).