Floating slab ballast bed energy consumption and vibration isolation system with high bearing capacity
By combining steel spring vibration isolation supports and double-layer steel wire rope devices, the problem of simultaneously achieving high load-bearing capacity and excellent vibration isolation in floating slab track isolation technology is solved. This achieves multi-directional load-bearing capacity, vibration isolation, and energy dissipation effects, and is suitable for vibration isolation projects of subway floating slab track.
Patent Information
- Application Number
- CN202520544355.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing floating slab track isolation technology cannot simultaneously achieve high load-bearing capacity and excellent vibration isolation and energy dissipation effects, which limits its application in traffic engineering.
The system employs steel spring vibration isolation supports and a double-layer steel wire rope device. The outer and inner steel wire rope devices are fixedly connected by bolts, which together provide load-bearing capacity and vibration isolation capability. The shaft in the steel spring vibration isolation support provides limit. The double-layer steel wire rope device works synergistically under loads in different directions to achieve multi-directional load-bearing, vibration isolation and energy dissipation.
It achieves high load-bearing capacity, effective vibration isolation and energy dissipation in three directions for the floating slab track bed, reduces the transmission of subway vibration to the superstructure, and reduces the damage of vibration to the building structure and equipment.
Smart Images
Figure CN223921898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering vibration isolation technology, specifically to a high-load-bearing floating slab track bed energy dissipation and vibration isolation system. Background Technology
[0002] With the continuous development of urbanization, transportation engineering fields such as automobiles and subway trains have also experienced rapid growth. However, as the coverage area of subway train construction gradually expands, the vibrations generated by these trains have had a significant negative impact on human production and daily life, becoming an unavoidable problem in this industry. This development trend inevitably leads to an increasing demand for vibration isolation in these projects, and the requirements for vibration isolation are becoming increasingly stringent. In the application of vibration isolation technology in these industries, the following two methods are generally adopted:
[0003] (1) Vibration isolation using steel spring floating slab track bed: Although this technology has a certain effect on reducing subway vibration, its vibration isolation effect and energy dissipation capacity are greatly limited due to the characteristics of the steel spring itself and the height limitation.
[0004] (2) Wire rope vibration damper: The inherent triaxial strong nonlinearity of this technology causes it to quickly enter a nonlinear state when subjected to load, which leads to insufficient load-bearing capacity of the wire rope vibration damper and consequently insufficient stability.
[0005] In summary, existing floating slab track isolation technologies cannot simultaneously achieve high load-bearing capacity and excellent vibration isolation and energy dissipation effects, which to some extent restricts the development of industries such as transportation engineering and the application of vibration isolation technology in such projects. Therefore, there is an urgent need to develop new floating slab track isolation technologies with high load-bearing capacity and effective vibration isolation and energy dissipation effects. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a high load-bearing capacity floating slab track bed energy dissipation and vibration isolation system, so as to solve the defect that the existing technology cannot simultaneously possess high load-bearing capacity, effective vibration isolation and energy dissipation characteristics.
[0007] The objective of this utility model is achieved through the following technical solution:
[0008] A high-load-bearing floating slab track energy dissipation and vibration isolation system includes a floating slab track with a track installed on it. The system is characterized by further including steel spring vibration isolation supports and a double-layer steel wire rope device. The floating slab track is supported on the steel spring vibration isolation supports. The steel spring vibration isolation supports and the double-layer steel wire rope device are used to buffer the floating slab track. The double-layer steel wire rope device includes an outer steel wire rope device and an inner steel wire rope device, which are fixedly connected.
[0009] Furthermore, the outer wire rope assembly includes an outer clamping plate and an outer wire rope, with the outer wire rope connected to the outer clamping plate; the inner wire rope assembly includes an inner clamping plate and an inner wire rope, with the inner wire rope connected to the inner clamping plate.
[0010] Furthermore, the outer clamping plate includes a top clamping plate and a bottom clamping plate, and the two ends of the outer wire rope are fixedly connected to the top clamping plate and the bottom clamping plate respectively. The inner clamping plate includes an upper connecting clamping plate and a lower connecting clamping plate, and the two ends of the inner wire rope are fixedly connected to the upper connecting clamping plate and the lower connecting clamping plate respectively.
[0011] Furthermore, the top clamping plate and the upper connecting clamping plate, as well as the bottom clamping plate and the lower connecting clamping plate, are all fixedly connected by bolts.
[0012] Furthermore, the bottom clamping plate is provided with a connecting plate, the connecting plate is provided with a bending part, and the bottom clamping plate is fixed on the bending part.
[0013] Furthermore, the lower connecting clamp is provided with a second connecting plate, and the second connecting plate is provided with a second bending part, and the lower connecting clamp is fixed on the second bending part.
[0014] Furthermore, the top and bottom clamping plates are provided with fixing holes, and the double-layer steel wire rope device is fixedly connected to the floating slab track bed through the fixing holes.
[0015] Furthermore, the steel spring vibration isolation support includes multiple steel spring elements, each of which is equipped with a shaft, which is used to limit the steel spring vibration isolation support.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This utility model provides load-bearing capacity for the floating slab track bed through the joint use of steel spring vibration isolation bearings and double-layer steel wire rope devices. When bearing the vertical vibration load of train travel, the steel spring vibration isolation bearings provide a certain vibration isolation capacity, while the outer and inner layers of the double-layer steel wire rope devices have strong nonlinear capabilities, providing good vibration isolation and energy dissipation capabilities. When the subway train travels forward, the double-layer steel wire rope devices can provide load-bearing capacity, vibration isolation capacity, and energy dissipation capacity in the direction of train travel, while the axles in the steel spring vibration isolation bearings can also provide a certain load-bearing capacity. When the subway train travels through curves, the double-layer steel wire rope devices can provide horizontal load-bearing capacity, vibration isolation capacity, and energy dissipation capacity, while the axles in the steel spring vibration isolation bearings can also provide a certain load-bearing capacity, increasing the load-bearing capacity of the floating slab track bed.
[0018] 2. This utility model enables floating slab track beds to achieve high load-bearing capacity, effective vibration isolation, and energy dissipation in three directions simultaneously. Under loads in different directions, the steel spring vibration isolation supports, the double-layer steel wire rope device, and the outer and inner layers of the double-layer steel wire rope device can work together to exert load-bearing, vibration isolation, and energy dissipation capabilities. Therefore, it can reduce the transmission of subway vibrations to the upper structure, effectively reduce the damage caused by vibrations to building structures, equipment, and life and property, and can be widely applied in vibration isolation projects for subway floating slab track beds. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] Figure 1 This is a cross-sectional schematic diagram of a high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to the present invention;
[0021] Figure 2 This is a schematic diagram of the double-layer steel wire rope device in Embodiment 1 of this utility model;
[0022] Figure 3 This is a side view of the double-layer steel wire rope device in Embodiment 1 of this utility model;
[0023] Figure 4 This is a schematic diagram of the bottom clamping plate and the lower connecting clamping plate in Embodiment 1 of this utility model;
[0024] Figure 5 This is a schematic diagram of the top clamping plate and the upper connecting clamping plate in Embodiment 1 of this utility model;
[0025] Figure 6 This is a schematic diagram of the overall operation of this utility model when it is subjected to vertical loads;
[0026] Figure 7 This is a schematic diagram of the operation of the double-layer steel wire rope device under vertical load according to this utility model;
[0027] Figure 8 This is a schematic diagram of the double-layer steel wire rope device in this utility model when the train moves forward;
[0028] Figure 9 This is a schematic diagram of the double-layer steel wire rope device for train turning in this utility model;
[0029] Figure 10 This is a schematic diagram of the double-layer steel wire rope device in Embodiment 2 of this utility model;
[0030] Figure 11 This is a schematic diagram of the double-layer steel wire rope device in Embodiment 3 of this utility model.
[0031] In the diagram: 1-Floating slab track bed; 2-Track; 3-Tunnel; 4-Double-layer wire rope device; 41-Top clamping plate; 42-Bottom clamping plate; 421-Connecting plate one; 422-Bending section one; 43-Outer wire rope; 44-Upper connecting clamping plate; 45-Lower connecting clamping plate; 451-Connecting plate two; 452-Bending section two; 46-Inner wire rope; 47-Bolt; 5-Foundation; 6-Steel spring vibration isolation support. Detailed Implementation
[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0033] Example 1:
[0034] like Figures 1 to 9 As shown, the vibration isolation system is installed inside tunnel 3, and a foundation 5 is laid inside tunnel 3.
[0035] This utility model discloses a high-load-bearing floating slab track energy dissipation and vibration isolation system, comprising a floating slab track 1, steel spring vibration isolation supports 6, and a double-layer steel wire rope device 4. A track 2 is installed on the floating slab track 1, which is installed inside a tunnel 3. The floating slab track 1 is supported on the steel spring vibration isolation supports 6, with the other end of the supports 6 mounted on a foundation 5. The double-layer steel wire rope device 4 is fixed to the side of the floating slab track 1, and its other end is fixed to the inner wall of the tunnel 3. The double-layer steel wire rope device 4 includes an outer layer and an inner layer, which are fixedly connected. The floating slab track 1 is buffered by the steel spring vibration isolation supports 6 and the double-layer steel wire rope device 4.
[0036] The outer wire rope assembly includes an outer clamping plate and an outer wire rope 43. The outer wire rope 43 is connected to the outer clamping plate. The outer clamping plate includes a top clamping plate 41 and a bottom clamping plate 42. The two ends of the outer wire rope 43 are fixedly connected to the top clamping plate 41 and the bottom clamping plate 42, respectively.
[0037] In this embodiment, considering that the application is a vibration isolation project for a subway floating slab track bed, in order to improve the static load stiffness of the outer wire rope device and increase stability, the bottom clamping plate 42 is provided with a connecting plate 421, the connecting plate 421 is provided with a bending part 422, and the bottom clamping plate 42 is fixed on the bending part 422.
[0038] Fixing holes (not shown in the figure) are provided on the top clamping plate 41 and the bottom clamping plate 42. The double-layer steel wire rope device 4 is fixedly connected to the floating slab track bed 1 and the inner wall of the tunnel 3 through the fixing holes, which facilitates the fixing of the double-layer steel wire rope.
[0039] The inner wire rope device includes an inner clamping plate and an inner wire rope 46. The inner wire rope 46 is connected to the inner clamping plate. The inner clamping plate includes an upper connecting clamping plate 44 and a lower connecting clamping plate 45. The two ends of the inner wire rope 46 are fixedly connected to the upper connecting clamping plate 44 and the lower connecting clamping plate 45, respectively.
[0040] The outer wire rope device and the inner wire rope device are fixedly connected by bolts 47. Specifically, the top clamping plate 41 of the outer wire rope device and the upper connecting clamping plate 44 of the inner wire rope device are fixedly connected by bolts 47, and the bottom clamping plate 42 of the outer wire rope device and the lower connecting clamping plate 45 of the inner wire rope device are fixedly connected by bolts 47.
[0041] In this embodiment, the steel spring vibration isolation support 6 also includes multiple steel spring elements, each of which is equipped with a shaft (not shown in the figure). The shaft limits the steel spring vibration isolation support 6 to prevent it from moving horizontally.
[0042] like Figures 6 to 7 As shown, when the floating slab track bed 1 bears the vertical load of the subway train, the steel spring vibration isolation support 6 provides a certain vertical bearing capacity and a certain vertical vibration isolation effect. The double-layer steel wire rope device 4 bears both pressure and shear force. The top clamping plate 41 and the upper connecting clamping plate 44 move downward perpendicular to the contact surface and horizontally tangential to the contact surface, thereby causing the outer steel wire rope 43 and the inner steel wire rope 46 to undergo compression and shear deformation, so that both provide bearing capacity, shear resistance and nonlinear energy dissipation capacity at the same time, thereby achieving good bearing capacity, shear resistance and energy dissipation vibration reduction effect. Furthermore, due to the strong nonlinearity of both, a good vibration isolation effect can be achieved.
[0043] like Figure 8 As shown, when the subway train moves forward, the axle in the steel spring vibration isolation support 6 can provide a certain load-bearing capacity in the direction of train travel. The double-layer steel wire rope device 4 bears the shear force in the direction of train travel. The top clamping plate 41 and the upper connecting clamping plate 44 move tangentially to the contact surface in the direction of train travel, thereby causing the outer layer steel wire rope 43 and the inner layer steel wire rope 46 to undergo shear deformation, so that both provide load-bearing capacity, shear resistance and nonlinear energy dissipation capacity at the same time, thereby achieving good load-bearing capacity, shear resistance and energy dissipation vibration reduction effect. Moreover, due to the strong nonlinearity of both, a good vibration isolation effect can be achieved.
[0044] like Figure 9As shown, when the subway train turns, the axle in the steel spring vibration isolation support 6 can provide a certain horizontal load-bearing capacity. The double-layer steel wire rope device 4 simultaneously bears pressure and shear force. The top clamping plate 41 and the upper connecting clamping plate 44 simultaneously move downward perpendicular to the contact surface and horizontally tangential to the contact surface, thereby causing the outer steel wire rope 43 and the inner steel wire rope 46 to undergo compression and shear deformation, so that both provide load-bearing capacity, shear resistance and nonlinear energy dissipation capacity at the same time, thus achieving good load-bearing capacity, shear resistance and energy dissipation vibration reduction effect. Moreover, due to the strong nonlinearity of both, a good vibration isolation effect can be achieved.
[0045] Through the above-mentioned structural design, this utility model enables the floating slab track bed 1 to simultaneously achieve high load-bearing capacity, effective vibration isolation, and energy dissipation in three directions. Under loads in different directions, the steel spring vibration isolation support 6, the double-layer steel wire rope device 4, and the outer and inner steel wire rope devices in the double-layer steel wire rope device 4 can work together to exert load-bearing, vibration isolation, and energy dissipation capabilities. Therefore, it can reduce the transmission of subway vibration to the upper structure, effectively reduce the damage caused by vibration to building structures, equipment, and life and property, and can be widely applied in vibration isolation projects of subway floating slab track bed 1.
[0046] Example 2:
[0047] like Figure 10 As shown, based on the structure of Embodiment 1, Embodiment 2 makes another design to the lower connecting clamp 45. In order to improve the static load stiffness of the inner wire rope device and increase stability, the lower connecting clamp 45 is provided with a second connecting plate 451, and the second connecting plate 451 is provided with a second bending part 452. The lower connecting clamp 45 is fixed on the second bending part 452.
[0048] Example 3:
[0049] like Figure 11 As shown, depending on the actual situation, in order to control costs or improve space utilization, both the outer and inner wire rope devices use outer and inner clamping plates that occupy little space.
[0050] The embodiments of this utility model are not limited thereto. Based on the above embodiments of this utility model, using conventional technical knowledge and common methods in the field, without departing from the basic technical idea of this utility model and without conflict, the above preferred embodiments can be modified, replaced or combined in various other forms. All other embodiments obtained fall within the scope of protection of this utility model.
Claims
1. A high-load-bearing floating slab track bed energy dissipation and vibration isolation system, comprising a floating slab track bed, wherein a track is installed on the floating slab track bed, characterized in that: It also includes steel spring vibration isolation supports and a double-layer steel wire rope device. The floating slab track bed is supported on the steel spring vibration isolation supports. The steel spring vibration isolation supports and the double-layer steel wire rope device are used to buffer the floating slab track bed. The double-layer steel wire rope device includes an outer steel wire rope device and an inner steel wire rope device, which are fixedly connected.
2. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 1, characterized in that: The outer wire rope device includes an outer clamping plate and an outer wire rope, the outer wire rope being connected to the outer clamping plate. The inner wire rope device includes an inner clamping plate and an inner wire rope, the inner wire rope being connected to the inner clamping plate.
3. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 2, characterized in that: The outer clamping plate includes a top clamping plate and a bottom clamping plate. The two ends of the outer wire rope are fixedly connected to the top clamping plate and the bottom clamping plate, respectively. The inner clamping plate includes an upper connecting clamping plate and a lower connecting clamping plate. The two ends of the inner wire rope are fixedly connected to the upper connecting clamping plate and the lower connecting clamping plate, respectively.
4. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 3, characterized in that: The top clamping plate and the upper connecting clamping plate, as well as the bottom clamping plate and the lower connecting clamping plate, are all fixedly connected by bolts.
5. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 3, characterized in that: The bottom clamping plate is provided with a connecting plate, the connecting plate is provided with a bending part, and the bottom clamping plate is fixed on the bending part.
6. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 3, characterized in that: The lower connecting clamp is provided with a second connecting plate, the second connecting plate is provided with a second bending part, and the lower connecting clamp is fixed on the second bending part.
7. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 3, characterized in that: The top clamping plate and the bottom clamping plate are provided with fixing holes, and the double-layer steel wire rope device is fixedly connected to the floating slab track bed through the fixing holes.
8. The high-load-bearing floating slab track bed energy dissipation and vibration isolation system according to claim 1, characterized in that: The steel spring vibration isolation support includes multiple steel spring elements, and each steel spring element is equipped with a shaft, which is used to limit the steel spring vibration isolation support.