Shock absorption and isolation device and shock absorption and isolation bridge
By designing a vibration damping and isolation device that includes limiting energy dissipation components, rubber pad mounting blocks, and flexible rubber pads, the maintenance difficulties caused by the independent arrangement of devices in existing bridge structures have been solved, achieving a vibration damping effect with flexible connection and convenient maintenance.
Patent Information
- Application Number
- CN202423186733.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The existing bridge structure has separate and independent vibration damping devices, seismic isolation devices, and anti-falling beam devices, which makes maintenance difficult. In addition, the vibration damping and isolation devices will also work to dissipate energy and reduce vibration when the box girder has small deformation, which makes them less adaptable.
Design a vibration damping and isolation device, including a limiting energy dissipation component, a rubber pad mounting block, and a flexible rubber pad. The flexible connection of the rubber pad avoids rigid impact on the limiting energy dissipation component during small deformations, and transmits the force to dissipate energy and reduce vibrations during large deformations. The rubber pad is detachable and easy to replace.
It achieves flexible connection of the bridge under small deformation to avoid rigid impact, and effectively dissipates energy and reduces vibration under large deformation. In addition, the rubber pads are detachable for easy maintenance, which improves the adaptability and maintenance convenience of the device.
Smart Images
Figure CN223646923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge seismic equipment technology, specifically to a seismic isolation device and a seismic isolation bridge. Background Technology
[0002] As a critical component of transportation infrastructure, the seismic performance of bridges directly impacts traffic safety. Under strong earthquakes, bridges may suffer severe damage such as beam collapse or other serious injuries, leading to structural failure and significant losses.
[0003] Currently, the seismic resistance of bridge structures mainly relies on the installation of seismic isolation devices between box girders and piers to dissipate energy. In existing technologies, box girders and piers are rigidly connected by seismic isolation devices. Due to the complex stress on box girders, seismic isolation devices will also work to dissipate energy and reduce vibration when the box girders undergo small deformations. This results in poor adaptability to different usage scenarios and makes the seismic isolation devices difficult to maintain.
[0004] Given the limitations of existing technologies, it is necessary to propose an integrated device and corresponding bridge structure that organically combines anti-fall beam and seismic isolation functions to solve or at least alleviate the above-mentioned defects. Utility Model Content
[0005] The main purpose of this utility model is to provide a vibration damping and isolation device, which aims to solve the technical problem that the vibration damping device, vibration isolation device and anti-falling beam device of the existing bridge structure are arranged independently and are difficult to maintain.
[0006] To achieve the above objectives, this utility model provides a vibration damping and isolation device, including a limiting energy dissipation component, a rubber pad mounting block, and a flexible rubber pad. The rubber pad mounting block is detachably disposed on the side wall of the limiting energy dissipation component, and the flexible rubber pad is detachably disposed on the rubber pad mounting block. The limiting energy dissipation component includes a rigid limiting box and a honeycomb energy dissipation mechanism. The honeycomb energy dissipation mechanism is housed in the rigid limiting box and includes interconnected multi-circle composite energy dissipation units and foam filling units that fill the multi-circle composite energy dissipation units.
[0007] Furthermore, the rigid limiting box is a rectangular box, which includes a bottom plate, four side plates, a top plate, and stiffening ribs. The bottom of the four side plates is fixedly connected to the bottom plate through the stiffening ribs, and the top plate is arranged on the top of the four side plates. The honeycomb energy dissipation mechanism is housed in the space enclosed by the bottom plate, the four side plates, and the top plate.
[0008] Furthermore, bolt connection holes are provided on the four side plates, and countersunk holes are arranged on the rubber pad mounting block. The fastening bolts pass through the countersunk holes and engage with the bolt connection holes to assemble the rubber pad mounting block onto the four side plates.
[0009] Furthermore, the surface of the rubber pad mounting block is provided with dovetail grooves arranged along the height direction, and the side wall of the rubber flexible pad is provided with dovetail slide rails. The rubber pad mounting block can be detachably mounted on the side wall of the four-sided side plate by the cooperation of the dovetail slide rails and the dovetail grooves. The bottom of the dovetail grooves is provided with limiting steps, and the dovetail slide rails abut against the limiting steps along the height direction to achieve vertical positioning.
[0010] Furthermore, multiple dovetail grooves are spaced apart on the surface of the rubber pad mounting block, and multiple dovetail slide rails are spaced apart on the surface of the rubber flexible pad.
[0011] Furthermore, the flexible rubber pad and the rubber pad mounting block are arranged flush along the height direction.
[0012] Furthermore, multiple rubber pad mounting blocks are arranged on the long side wall of the rigid limiting box, and one rubber pad mounting block is arranged on the short side wall of the rigid limiting box.
[0013] Furthermore, connection holes are arranged around the bottom plate of the box.
[0014] Furthermore, the multi-circle composite energy-consuming unit includes an outer ring of circular tubes arranged in a hexagonal shape, with adjacent outer ring of circular tubes fixedly connected by a first connecting plate, and also includes a central circular tube located on the center line of the hexagon, with the central circular tube and the corresponding outer ring of circular tubes fixedly connected by a second connecting plate.
[0015] This utility model also provides a seismic isolation bridge, including piers, bearings, box girder bodies and the aforementioned seismic isolation devices. The box girder body is supported on the piers by the bearings, and the seismic isolation devices are located between the piers and the box girder body. The seismic isolation devices are arranged one-to-one with the box girder bodies and are located at the ends of the box girder bodies.
[0016] Compared with the prior art, the vibration damping and isolation device provided by this utility model has the following beneficial effects:
[0017] The vibration damping and isolation device provided by this utility model includes a limiting energy dissipation component, a rubber pad mounting block, and a flexible rubber pad. The rubber pad mounting block is detachably mounted on the side wall of the limiting energy dissipation component, and the flexible rubber pad is detachably mounted on the rubber pad mounting block. The limiting energy dissipation component includes a rigid limiting box and a honeycomb energy dissipation mechanism. The honeycomb energy dissipation mechanism is housed within the rigid limiting box and includes interconnected multi-circle composite energy dissipation units and foam filler units filling the multi-circle composite energy dissipation units. The rubber pad mounting block is detachably mounted on the side wall of the rigid limiting box. The flexible rubber pad allows for a flexible connection between the box girder and the limiting energy dissipation component. When the deformation range of the flexible rubber pad is within the range, the limiting energy dissipation component will not be subjected to rigid impact, and the limiting energy dissipation component will not dissipate energy. When the deformation range of the flexible rubber pad is outside the range, the force is transmitted to the limiting energy dissipation component, and the limiting energy dissipation component will work to dissipate energy and reduce vibration. Furthermore, because the flexible rubber pad is detachably mounted on the rubber pad mounting block, it can be replaced separately when damaged, facilitating inspection and maintenance. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of a vibration damping and isolation device in one embodiment of the present utility model;
[0020] Figure 2 for Figure 1 Front view of a seismic isolation device;
[0021] Figure 3 for Figure 2 Sectional view at point AA;
[0022] Figure 4 This is an exploded schematic diagram of a vibration damping and isolation device according to another embodiment of the present invention;
[0023] Figure 5 for Figure 4 Enlarged view of point B in the middle;
[0024] Figure 6 for Figure 4 A three-dimensional structural diagram of the multi-circle composite energy-consuming unit.
[0025] Legend:
[0026] 100. Vibration damping and isolation device; 10. Limiting and energy dissipation component; 11. Rigid limiting box; 111. Box bottom plate; 112. Four-sided side plates; 113. Box top plate; 114. Box stiffening rib; 12. Honeycomb energy dissipation mechanism; 121. Multi-circle composite energy dissipation unit; 122. Foam filling unit; 20. Rubber pad mounting block; 21. Dovetail slide; 30. Rubber flexible pad; 31. Dovetail slide rail.
[0027] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0032] Please refer to the appendix. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6The vibration damping and isolation device 100 provided by this utility model includes a limiting energy dissipation component 10, a rubber pad mounting block 20, and a rubber flexible pad 30. The rubber pad mounting block 20 is detachably disposed on the side wall of the limiting energy dissipation component 10, and the rubber flexible pad 30 is detachably disposed on the rubber pad mounting block 20. The limiting energy dissipation component 10 includes a rigid limiting box 11 and a honeycomb energy dissipation mechanism 12. The honeycomb energy dissipation mechanism 12 is housed in the rigid limiting box 11. The honeycomb energy dissipation mechanism 12 includes interconnected multi-circle composite energy dissipation units 121 and foam filling units 122 that fill the multi-circle composite energy dissipation units 121.
[0033] The vibration damping and isolation device 100 provided by this utility model includes a limiting energy dissipation component 10, a rubber pad mounting block 20, and a flexible rubber pad 30. The rubber pad mounting block 20 is detachably disposed on the side wall of the limiting energy dissipation component 10, and the flexible rubber pad 30 is detachably disposed on the rubber pad mounting block 20. The limiting energy dissipation component 10 includes a rigid limiting box 11 and a honeycomb energy dissipation mechanism 12. The honeycomb energy dissipation mechanism 12 is housed within the rigid limiting box 11 and includes interconnected multi-circle composite energy dissipation units 121 and foam filling units 122 filling the multi-circle composite energy dissipation units 121. The rubber pad... The mounting block 20 is detachably mounted on the side wall of the rigid limiting box 11. By setting the rubber flexible pad 30, the box beam can be flexibly connected to the limiting energy dissipation component 10. When within the deformation range of the rubber flexible pad 30, the limiting energy dissipation component 10 will not be subjected to rigid impact, and the limiting energy dissipation component 10 will not dissipate energy. When outside the deformation range of the rubber flexible pad 30, the force will be transferred to the limiting energy dissipation component 10, and the limiting energy dissipation component 10 will work to dissipate energy and reduce vibration. Furthermore, since the rubber flexible pad 30 is detachably mounted on the rubber pad mounting block 20, it can be replaced separately when damaged, which is convenient for inspection and maintenance.
[0034] Furthermore, the rigid limiting box 11 is a rectangular box, comprising a bottom plate 111, four side plates 112, a top plate 113, and stiffening ribs 114. The bottom of the four side plates 112 is fixedly connected to the bottom plate 111 via the stiffening ribs, and the top plate 113 is arranged on the top of the four side plates 112. The honeycomb energy dissipation mechanism 12 is housed within the space formed by the bottom plate 111, the four side plates 112, and the top plate 113. In this invention, the rigid limiting box 11 is designed as a rectangular box, which not only facilitates the installation of the rubber pad mounting block 20 but also maintains structural stability when bearing and dissipating longitudinal and lateral forces.
[0035] Furthermore, bolt connection holes are provided on the four-sided side plate 112, and countersunk holes are arranged on the rubber pad mounting block 20. The fastening bolts pass through the countersunk holes and engage with the bolt connection holes to assemble the rubber pad mounting block 20 onto the four-sided side plate 112. It can be understood that the four-sided side plate 112 is formed by connecting the long side plate and the short side plate together.
[0036] Furthermore, the surface of the rubber pad mounting block 20 is provided with a dovetail groove 21 arranged along the height direction, and the side wall of the rubber flexible pad 30 is provided with a dovetail slide rail 31. The dovetail slide rail 31 cooperates with the dovetail groove 21 to allow the rubber pad mounting block 20 to be detachably mounted on the side wall of the four-sided side plate 112. A limiting step is arranged at the bottom of the dovetail groove 21, and the dovetail slide rail 31 abuts against the limiting step along the height direction to achieve vertical positioning. In this utility model, the dovetail slide rail 31 and the dovetail groove 21 cooperate to allow the rubber pad mounting block 20 to be detachably mounted on the side wall of the four-sided side plate 112. The installation and removal of the rubber flexible pad 30 can be achieved simply by operating along the height direction. Specifically, the dovetail groove 21 is a blind groove with an opening at the top and a partition at the bottom, achieving vertical positioning of the rubber flexible pad 30 without the need for an additional positioning mechanism.
[0037] Furthermore, in order to ensure that the rubber flexible pad 30 is installed stably, multiple dovetail grooves 21 are spaced apart on the surface of the rubber pad mounting block 20, and multiple dovetail slide rails 31 are spaced apart on the surface of the rubber flexible pad 30.
[0038] Furthermore, in order to reduce interference, the rubber flexible pad 30 and the rubber pad mounting block 20 are arranged flush along the height direction.
[0039] Furthermore, multiple rubber pad mounting blocks 20 are arranged on the long side wall of the rigid limiting box 11, and one rubber pad mounting block 20 is arranged on the short side wall of the rigid limiting box 11. Understandably, by arranging multiple rubber pad mounting blocks 20 on the long side wall, the uniformity of force distribution is improved, and the local pressure on the limiting energy dissipation component 10 is reduced.
[0040] Furthermore, the bottom plate 111 is provided with connecting holes around its perimeter. In this utility model, the connecting holes facilitate the installation of the bottom plate 111 onto the pre-embedded parts embedded in the top of the bridge pier.
[0041] Furthermore, the multi-circle composite energy-consuming unit 121 includes an outer ring of circular tubes arranged in a hexagonal shape, with adjacent outer ring of circular tubes fixedly connected by a first connecting plate, and also includes a central circular tube located on the center line of the hexagon, with the central circular tube and the corresponding outer ring of circular tubes fixedly connected by a second connecting plate.
[0042] In this embodiment, multiple multi-circle composite energy dissipation units 121 are interconnected and combined to form an internal core energy dissipation component under the synergistic effect of foam filling unit 122. In specific implementation, the longitudinal and transverse stiffness of the internal core energy dissipation component can be flexibly adjusted by adjusting the longitudinal and transverse arrangement of the multi-circle composite energy dissipation units 121 to meet different seismic resistance requirements.
[0043] Specifically, the core skeleton of the multi-circle composite energy dissipation unit 121 is formed by welding together a central circular tube, an outer ring of circular tubes arranged in regular hexagons, and a first connecting plate. The enclosed space is filled with foam filler to form a foam filler unit 122, so that the limiting energy dissipation component 10 is a skeleton-foam filler dense structure, which together bears the seismic load transmitted by the superstructure of the bridge.
[0044] More preferably, the stiffness of the multi-circle composite energy dissipation unit 121 can also be designed and adjusted. By adjusting the diameter of the circular steel pipe, the wall thickness of the circular steel pipe, the length of the connecting plate, the thickness of the connecting plate, and the overall height of the multi-circle composite energy dissipation unit 121, the seismic resistance requirements of different seismic intensity zones and different types of bridge structures can be met.
[0045] Understandably, based on the integrated arrangement of the rubber flexible pad 30 and the limiting energy dissipation component 10, it can adapt to small deformations to achieve vibration reduction of the limiting energy dissipation component 10, and when the vibration causes large deformation, it can transmit the force to the limiting energy dissipation component 10 for energy dissipation and vibration reduction.
[0046] This utility model also provides a seismic isolation bridge, including piers, supports, box girder bodies and the aforementioned seismic isolation device 100. The box girder body is supported on the piers by supports, and the seismic isolation device 100 is disposed between the piers and the box girder body. The seismic isolation device 100 is arranged in a one-to-one correspondence with the box girder body and is located at the end of the box girder body.
[0047] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A vibration damping and isolation device, characterized in that, The device includes a limiting energy-dissipating component, a rubber pad mounting block, and a flexible rubber pad. The rubber pad mounting block is detachably mounted on the side wall of the limiting energy-dissipating component, and the flexible rubber pad is detachably mounted on the rubber pad mounting block. The limiting energy dissipation component includes a rigid limiting box and a honeycomb energy dissipation mechanism. The honeycomb energy dissipation mechanism is housed in the rigid limiting box. The honeycomb energy dissipation mechanism includes interconnected multi-circle composite energy dissipation units and foam filling units that fill the multi-circle composite energy dissipation units. The rubber pad mounting block is detachably disposed on the side wall of the rigid limiting box.
2. The vibration damping and isolation device according to claim 1, characterized in that, The rigid limiting box is a rectangular box, which includes a bottom plate, four side plates, a top plate, and stiffening ribs. The bottom of the four side plates is fixedly connected to the bottom plate through the stiffening ribs, and the top plate is arranged on the top of the four side plates. The cellular energy dissipation mechanism is housed in the space formed by the bottom plate, the four side plates, and the top plate.
3. The vibration damping and isolation device according to claim 2, characterized in that, The four side plates are provided with bolt connection holes, and the rubber pad mounting block is provided with countersunk holes. The fastening bolts pass through the countersunk holes and engage with the bolt connection holes to assemble the rubber pad mounting block onto the four side plates.
4. The vibration damping and isolation device according to claim 2, characterized in that, The surface of the rubber pad mounting block is provided with dovetail grooves arranged along the height direction, and the side wall of the rubber flexible pad is provided with dovetail slide rails. The dovetail slide rails and dovetail grooves cooperate to allow the rubber pad mounting block to be detachably mounted on the side wall of the four side plates. The bottom of the dovetail slide is provided with a limiting step, and the dovetail slide rail abuts against the limiting step along the height direction to achieve vertical positioning.
5. The vibration damping and isolation device according to claim 4, characterized in that, Multiple dovetail grooves are spaced apart on the surface of the rubber pad mounting block, and multiple dovetail slide rails are spaced apart on the surface of the rubber flexible pad.
6. The vibration damping and isolation device according to claim 4, characterized in that, The flexible rubber pad and the rubber pad mounting block are arranged flush along the height direction.
7. The vibration damping and isolation device according to claim 4, characterized in that, Multiple rubber pad mounting blocks are arranged on the long side wall of the rigid limiting box. A rubber pad mounting block is arranged on the short side wall of the rigid limiting box.
8. The vibration damping and isolation device according to claim 2, characterized in that, The bottom plate of the box is provided with connection holes around its perimeter.
9. The vibration damping and isolation device according to claim 2, characterized in that, The multi-circle composite energy-consuming unit includes an outer ring of circular tubes arranged in a hexagonal shape, with adjacent outer rings of circular tubes fixedly connected by a first connecting plate. It also includes a central circular tube located on the center line of the hexagon, and the central circular tube is fixedly connected to the corresponding outer circular tube by a second connecting plate.
10. A seismic isolation bridge, characterized in that, It includes piers, supports, box girders, and seismic isolation devices as described in any one of claims 1 to 9. The box girders are supported on the piers by supports, and the seismic isolation devices are located between the piers and the box girders. The seismic isolation devices are arranged one-to-one with the box girders and are located at the ends of the box girders.