Damping and buffering anti-falling beam device
By using the combination of shock absorbing components and iron chains in the anti-fall beam device, the problem of insufficient seismic performance of the existing anti-fall beam device in earthquakes is solved, effective transmission and buffering of seismic forces is achieved, and the seismic performance and structural stability of the bridge structure are improved.
Patent Information
- Application Number
- CN202421691506.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing anti-fall beam device has problems with bridge falling beams, poor shock absorption performance, and reliability of connecting parts in earthquakes, resulting in insufficient seismic resistance.
By combining the bridge structure characteristics and the stress load characteristics, the combination of shock absorbing components and iron chains is used to achieve effective transmission and buffering of seismic forces. The elastic properties of the shock absorbing components absorb and consume energy, reducing the impact on the bridge structure; the iron chain is connected to the connecting seat through an annular mating surface, allowing large angle rotation to adapt to displacement changes.
The seismic resistance of the bridge structure is improved, the impact of seismic forces on the bridge is reduced, the maintenance cost is reduced, and the structure is maintained.
Smart Images
Figure CN222893483U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge equipment, and more specifically relates to a shock-absorbing and buffering beam-falling prevention device. Background Art
[0002] The treatment method to prevent beam drop usually involves a variety of structural design and engineering measures, aiming to improve the stability and safety of bridges under extreme conditions such as earthquakes.
[0003] In the prior art, the anti-falling beam device still has the following defects or shortcomings: (1) Bridge beam falling phenomenon: During earthquakes, bridge beam falling is a common and serious problem. When the earthquake force exceeds the bearing capacity of the bridge structure, it may cause the beam to fall off the support, causing traffic interruption and huge economic losses. The background technology may have the fragility of bridge connection components under extreme loads, as well as the lack of effective energy dissipation and buffering mechanisms. (2) Poor shock absorption performance: Although some shock absorption devices have been applied to bridge structures, there are still some limitations, such as weak shock absorption effect, high installation and maintenance costs, and poor durability. In addition, some shock absorption devices may also consume energy under normal use conditions, affecting the normal performance of the bridge. (3) Reliability issues of connection components: The connection components of the bridge may become weak links under the action of earthquake forces. Traditional connection methods are difficult to adapt to large displacements and large angle changes, resulting in connection failure or structural damage.
[0004] Based on the above defects and shortcomings, this field urgently needs to make further improvements to the existing anti-falling beam device and construct a falling beam device that can realize the transmission of seismic force and buffer energy consumption, so as to improve the seismic performance of the bridge structure. Utility Model Content
[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a shock-absorbing and buffering anti-falling beam device, which combines the structural characteristics of the bridge itself and its load characteristics, and realizes effective transmission and buffering of seismic force through the combination of shock-absorbing components and iron chains. The elastic characteristics of the shock-absorbing components can absorb and consume energy when an earthquake occurs, reduce the impact on the bridge structure, and improve the seismic resistance of the bridge structure; in addition, the anti-falling components of the utility model are connected by annular mating surfaces, allowing free rotation within a large angle range, which enables the entire device to adapt to corresponding displacement changes under the effects of daily temperature changes, vehicle loads, etc. The iron chain is always in a relaxed state and is not subjected to stress, so as not to affect the normal stress mode of the bridge, and maintain the stability and flexibility of the structure. Furthermore, the shock-absorbing component greatly reduces the seismic force transmitted to the iron chain, which not only reduces the wear on the iron chain and the connecting base, but also reduces the potential damage caused by the earthquake, thereby reducing the maintenance cost.
[0006] To achieve the above purpose, the utility model proposes a shock-absorbing and buffering anti-drop beam device, comprising a first anti-drop beam module, a second anti-drop beam module and an iron chain connecting the first anti-drop beam module and the second anti-drop beam assembly, wherein:
[0007] The first anti-drop beam module is fixedly connected to the beam body, and the first anti-drop beam module includes a first anti-drop connection base, a first fixed connection plate and a shock absorbing component fixedly arranged on the first anti-drop connection base, the first fixed connection plate is vertically connected to the first anti-drop connection base, the shock absorbing component is arranged on the first fixed connection plate through a pin shaft, and the center lines of the shock absorbing component and the pin shaft are parallel to the cross section of the shock absorbing connection base, and a first iron chain connection seat is arranged on the shock absorbing component, and the first iron chain connection seat is connected to the iron chain through an annular mating surface;
[0008] The second anti-fall beam module is fixedly connected to the beam body or the bridge pier.
[0009] As a further preferred embodiment, the shock absorbing assembly comprises a small steel ring, a rubber ring and a large steel ring arranged in sequence from the inside to the outside, and the rubber ring, the small steel ring and the large steel ring are formed into a whole by rubber vulcanization;
[0010] The small steel ring is provided with a through hole for accommodating the pin shaft to pass through.
[0011] As a further preference, the first anti-fall connection base is also provided with a first anchoring assembly fixedly connected to the beam body.
[0012] As a further preferred embodiment, if the second anti-falling beam module is fixedly connected to the beam body, the second anti-falling beam module includes:
[0013] A second anti-fall connection base, which is fixedly connected to the beam body through a second anchoring assembly, and the second anti-fall connection base is parallel to the cross section of the first anti-fall connection base;
[0014] The second iron chain connecting seat is vertically connected to the second anti-fall connecting base, and the second iron chain connecting seat is connected to the iron chain through an annular matching surface.
[0015] As a further preferred embodiment, the second anti-fall beam module also includes fixed toggle plates which are arranged on both sides of the second iron chain connecting seat and are fixedly connected to the second iron chain connecting seat and the second anti-fall connecting base.
[0016] As a further preferred embodiment, if the second anti-falling beam module is fixedly connected to the beam body, the second anti-falling beam module has the same structure as the first anti-falling beam module.
[0017] As a further preferred embodiment, if the second anti-falling beam module is fixedly connected to the bridge pier, the second anti-falling beam module includes:
[0018] The second anti-falling connection base is fixedly connected to the bridge pier through a second anchoring component, and the cross-section of the second anti-falling connection base is perpendicular to that of the first anti-falling connection base;
[0019] The second iron chain connection seat is vertically connected to the second anti-falling connection base, and the second iron chain connection seat is connected to the iron chain through an annular mating surface.
[0020] As a further preference, the second anti-falling beam module further includes fixing gussets provided on both sides of the second iron chain connection seat and fixedly connected to the second iron chain connection seat and the second anti-falling connection base.
[0021] As a further preference, if the second anti-falling beam module is fixedly connected to the bridge pier, the second anti-falling beam module has the same structure as the first anti-falling beam module.
[0022] Generally speaking, compared with the prior art, the above technical solutions conceived by the present utility model mainly have the following technical advantages:
[0023] For the first and second iron chain connection seats and the shock absorption components of the present utility model, the shock absorption components and the iron chains are all connected through annular mating surfaces, and can rotate freely within a large angular range, avoiding the phenomenon of local jamming and premature failure under the action of seismic forces. Under the action of daily temperature, vehicle load, etc., the corresponding displacement is adapted through the deformation of the iron chain, and the iron chain is always in a relaxed state, not stressed, and does not affect the stress mode of the bridge. Under the action of an earthquake, the seismic force is transmitted from the pier beam to the connection base and then to the pin shaft, and then transmitted to the small steel ring. The rubber ring between the large and small steel rings buffers the seismic action, and then transmits the seismic force to the iron chain through the connection holes on the outer side of the large steel ring. Finally, the iron chain bears the seismic force and plays the function of preventing the beam from falling. The present utility model realizes the transmission and buffering energy dissipation of seismic forces well through the setting of shock absorption components, greatly reducing the seismic force finally transmitted to the iron chain, with low cost, high efficiency and good safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the single-sided installation of shock absorption components and the beam-beam connection method of the shock-absorbing and anti-falling beam device described in the embodiment of the present utility model.
[0025] Figure 2 It is a schematic structural diagram of the first anti-falling connection base involved in the embodiment of the present utility model;
[0026] Figure 3 It is a schematic structural diagram of the second anti-falling connection base involved in the embodiment of the present utility model;
[0027] Figure 4It is a structural schematic diagram of a shock absorbing assembly involved in an embodiment of the utility model;
[0028] Figure 5 It is a schematic diagram of the installation of the damping components and the beam connection method on both sides of the shock-absorbing and anti-falling beam device described in the embodiment of the utility model;
[0029] Figure 6 It is a schematic diagram of the single-side installation of the shock-absorbing and anti-falling beam device and the pier-beam connection method described in the embodiment of the utility model;
[0030] Figure 7 It is a schematic diagram of the installation of shock absorbing components and the pier-beam connection method on both sides of the shock absorbing and anti-falling beam device described in the embodiment of the utility model.
[0031] In all the drawings, the same figure marks represent the same technical features, specifically: 1-first anti-fall connecting base, 2-first anchoring assembly, 3-first fixed connecting plate, 4-pin shaft, 5-shock absorbing assembly, 501-large steel ring, 502-rubber ring, 503-small steel ring, 6-iron chain, 7-first iron chain connecting seat, 8-second anti-fall connecting base, 9-second anchoring assembly, 10-second iron chain connecting seat, 11-fixed elbow plate. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0033] Example 1
[0034] like Figures 1 to 4As shown, a shock-absorbing and buffering anti-drop beam device provided in this embodiment is used to connect adjacent beam bodies, including a first anti-drop beam module, a second anti-drop beam module, and an iron chain 6 connecting the first anti-drop beam module and the second anti-drop beam assembly, wherein the first anti-drop beam module is fixedly connected to the beam body, the first anti-drop beam module includes a first anti-drop connection base 1, a first fixed connection plate 3 and a shock-absorbing assembly 5 fixedly arranged on the first anti-drop connection base 1, the first fixed connection plate 3 is vertically connected to the first anti-drop connection base 1, the shock-absorbing assembly 5 is arranged on the first fixed connection plate 3 through a pin 4, and the center lines of the shock-absorbing assembly 5 and the pin 4 are parallel to the cross section of the shock-absorbing connection base 1, and the shock-absorbing assembly 5 is provided with a first iron chain connection seat 7, and the first iron chain connection seat 7 is connected to the iron chain 6 through an annular mating surface. Specifically, a through hole connected to the iron chain 6 is opened on the first iron chain connection seat 7. The first anti-drop connection base 1 is also provided with a first anchor assembly 2 fixedly connected to the beam body.
[0035] The shock absorbing assembly 5 includes a small steel ring 503, a rubber ring 502 and a large steel ring 501 arranged in sequence from the inside to the outside. The rubber ring 502, the small steel ring 503 and the large steel ring 501 are formed into a whole through rubber vulcanization; the small steel ring 503 is provided with a through hole for accommodating the pin shaft 4 to pass through.
[0036] The second anti-fall beam module is fixedly connected to the beam body, and includes: a second anti-fall connection base 8, which is fixedly connected to the beam body through a second anchor assembly, and the second anti-fall connection base 8 is parallel to the cross section of the first anti-fall connection base 1; a second iron chain connection seat 10, which is vertically connected to the second anti-fall connection base 8, and the second iron chain connection seat 10 is connected to the iron chain 6 through an annular mating surface. The second anti-fall beam module also includes fixed toggle plates 11 arranged on both sides of the second iron chain connection seat 10 and fixedly connected to the second iron chain connection seat 10 and the second anti-fall connection base 8.
[0037] Example 2
[0038] like Figure 5 As shown, in this embodiment, the second anti-drop beam module is fixedly connected to the beam body, and the second anti-drop beam module has the same structure as the first anti-drop beam module, and the specific structures of the first anti-drop beam module and the second anti-drop beam module are as described in the above embodiment 1. And in this embodiment, the first anti-drop beam module and the second anti-drop beam module are symmetrically arranged, in this way, the iron chain and the two first iron chain connecting seats 7 are connected through the annular mating surface, and no structural interference occurs.
[0039] Example 3
[0040] like Figure 6As shown, the present embodiment provides a shock-absorbing and buffering anti-drop beam device, and its first anti-drop beam module has the same structure as that of the embodiment 1. The second anti-drop beam module is fixedly connected to the bridge pier, and includes: a second anti-drop connection base 8, which is fixedly connected to the bridge pier through a second anchor assembly, and the second anti-drop connection base 8 is perpendicular to the cross section of the first anti-drop connection base 1; a second iron chain connection seat 10, which is vertically connected to the second anti-drop connection base 8, and the second iron chain connection seat 10 is connected to the iron chain 6 through an annular mating surface. The second anti-drop beam module also includes fixed toggle plates 11 arranged on both sides of the second iron chain connection seat 10 and fixedly connected to the second iron chain connection seat 10 and the second anti-drop connection base 8.
[0041] Example 4
[0042] like Figure 7 As shown, in this embodiment, the second anti-drop beam module is fixedly connected to the bridge pier, and the second anti-drop beam module has the same structure as the first anti-drop beam module. The specific structures of the first anti-drop beam module and the second anti-drop beam module are as described in the above embodiment 1. In this embodiment, the first anti-drop beam module and the second anti-drop beam module are symmetrically arranged, so that the iron chain and the two first iron chain connecting seats 7 are connected through the annular mating surface, and no structural interference occurs.
[0043] Example 5
[0044] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the shock absorbing and buffering anti-falling beam device further includes an intelligent monitoring module, and the intelligent monitoring module includes:
[0045] The sensor integrated component includes: a strain sensor, which is installed around the large steel ring, small steel ring and connecting holes of the shock-absorbing component to monitor stress and strain; a displacement sensor, which is installed on the connecting base and the iron chain to monitor displacement changes; a temperature sensor, which is installed on the shock-absorbing component and the iron chain to monitor temperature changes because temperature can affect material properties; an accelerometer, which is installed on the connecting base to monitor acceleration changes caused by earthquakes or other vibrations.
[0046] A data acquisition unit, used to collect data from each sensor, i.e., a sensor integrated component;
[0047] The controller is in communication with the data acquisition unit and is used to receive, store and analyze data from various monitoring points.
[0048] Based on any of the above embodiments or a combination of multiple embodiments, the first and second iron chain connecting seats and the shock absorbing group, the shock absorbing assembly and the iron chain are connected through an annular mating surface, and can rotate freely within a large angle range, avoiding the phenomenon of local stagnation and first destruction under the action of earthquake force. Under the action of daily temperature, vehicle load, etc., the corresponding displacement is adapted through the deformation of the iron chain, and the iron chain is always in a relaxed state, not subjected to force, and does not affect the force mode of the bridge. Under the action of an earthquake, the seismic force is transmitted to the connecting base through the pier beam and then to the pin shaft, and then to the small steel ring. The rubber ring between the large and small steel rings buffers the earthquake action, and then transmits the seismic force to the iron chain through the outer connecting hole of the large steel ring. Finally, the iron chain bears the seismic force and plays the function of preventing the beam from falling. The utility model realizes the transmission of seismic force and the buffering energy consumption by setting the shock absorbing assembly, so that the seismic force finally transmitted to the iron chain is greatly reduced, with low cost, high efficiency and good safety.
[0049] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A shock-absorbing and anti-falling beam device, characterized in that: It comprises a first anti-falling beam module, a second anti-falling beam module and an iron chain (6) connecting the first anti-falling beam module and the second anti-falling beam module, wherein: The first anti-fall beam module is fixedly connected to the beam body, and comprises a first anti-fall connection base (1), a first fixed connection plate (3) fixedly arranged on the first anti-fall connection base (1), and a shock absorbing assembly (5), wherein the first fixed connection plate (3) is vertically connected to the first anti-fall connection base (1), the shock absorbing assembly (5) is arranged on the first fixed connection plate (3) via a pin shaft (4), and the center lines of the shock absorbing assembly (5) and the pin shaft (4) are parallel to the cross section of the shock absorbing connection base (1), and a first iron chain connection seat (7) is arranged on the shock absorbing assembly (5), and the first iron chain connection seat (7) is connected to the iron chain (6) via an annular mating surface; The second anti-fall beam module is fixedly connected to the beam body or the bridge pier.
2. A shock-absorbing and anti-falling beam device according to claim 1, characterized in that: The shock absorbing assembly (5) comprises a small steel ring (503), a rubber ring (502) and a large steel ring (501) which are arranged in sequence from the inside to the outside, and the rubber ring (502) forms a whole with the small steel ring (503) and the large steel ring (501) through rubber vulcanization; The small steel ring (503) is provided with a through hole for accommodating the pin shaft (4) to pass through.
3. The shock absorbing and buffering anti-falling beam device according to claim 1, characterized in that: The first anti-fall connection base (1) is also provided with a first anchoring assembly (2) fixedly connected to the beam body.
4. A shock absorbing and anti-falling beam device according to any one of claims 1 to 3, characterized in that: If the second anti-falling beam module is fixedly connected to the beam body, the second anti-falling beam module includes: A second anti-fall connection base (8), the second anti-fall connection base (8) being fixedly connected to the beam body via a second anchoring assembly, and the second anti-fall connection base (8) is parallel to the cross section of the first anti-fall connection base (1); A second iron chain connecting seat (10), the second iron chain connecting seat (10) is vertically connected to the second anti-fall connecting base (8), and the second iron chain connecting seat (10) is connected to the iron chain (6) via an annular matching surface.
5. A shock absorbing and buffering beam-falling prevention device according to claim 4, characterized in that: The second anti-fall beam module also includes fixed toggle plates (11) arranged on both sides of the second iron chain connecting seat (10) and fixedly connected to the second iron chain connecting seat (10) and the second anti-fall connecting base (8).
6. A shock absorbing and buffering beam-falling prevention device according to any one of claims 1 to 3, characterized in that: If the second anti-falling beam module is fixedly connected to the beam body, the second anti-falling beam module has the same structure as the first anti-falling beam module.
7. A shock absorbing and buffering beam-falling prevention device according to any one of claims 1 to 3, characterized in that: If the second anti-falling beam module is fixedly connected to the bridge pier, the second anti-falling beam module includes: A second anti-fall connection base (8), the second anti-fall connection base (8) being fixedly connected to the bridge pier via a second anchoring assembly, and the second anti-fall connection base (8) is perpendicular to the cross section of the first anti-fall connection base (1); A second iron chain connecting seat (10), the second iron chain connecting seat (10) is vertically connected to the second anti-fall connecting base (8), and the second iron chain connecting seat (10) is connected to the iron chain (6) via an annular matching surface.
8. The shock absorbing and buffering beam-falling prevention device according to claim 7, characterized in that: The second anti-fall beam module also includes fixed toggle plates (11) arranged on both sides of the second iron chain connecting seat (10) and fixedly connected to the second iron chain connecting seat (10) and the second anti-fall connecting base (8).
9. A shock absorbing and buffering beam-falling prevention device according to any one of claims 1 to 3, characterized in that: If the second anti-falling beam module is fixedly connected to the bridge pier, the second anti-falling beam module has the same structure as the first anti-falling beam module.