Parameter-adjustable damping steel support

Abstract

The utility model relates to a damping steel support with adjustable parameters, and belongs to the technical field of bridge supports. Comprising an upper support plate, a middle steel lining plate, a spherical crown lining plate, an upper guide rail assembly, a lower guide rail assembly, a lower lining plate assembly plate, a lower support plate assembly and parameter-adjustable elastic damping elements, the bottom of the middle steel lining plate and the bottom of the spherical crown lining plate are embedded into the lower lining plate assembly plate at the same time, and the lower lining plate assembly plate is arranged on the lower guide rail assembly; the lower guide rail assembly is arranged on the lower support plate assembly; the left side and the right side of the lower lining plate assembly plate are connected with parameter-adjustable elastic damping elements in the transverse bridge direction, and the lower lining plate assembly plate and the lower guide rail assembly can slide in a relative friction mode. Grooves are formed in the middle of the upper support plate and the middle of the middle steel lining plate, upper guide rail assemblies are arranged in the grooves and arranged in the longitudinal bridge direction, and the upper support plate and the middle steel lining plate can slide in a relative friction mode. The anti-seismic requirement of the bridge can be met, good economical efficiency is achieved, and the manufacturing cost of the bridge is reduced.

Description

Technical Field

[0001] The utility model relates to a parameter-adjustable damping steel support, belonging to the technical field of bridge supports. Background Art

[0002] With the development of my country's transportation infrastructure industry, the variety of railway and highway bridges has increased, and the requirements for the safety, reliability, and functional practicality of bridge systems have become increasingly stringent. In recent years, earthquakes have occurred frequently in many parts of my country. When seismic forces occur, bridges will experience large horizontal displacements, which places higher demands on bridge bearings and the seismic resistance of bridges.

[0003] In summary, how to design a bearing that can meet all the functions of ordinary bridge bearings and meet the needs of bridge seismic reduction and isolation is a technical problem that needs to be solved urgently in the field of bridge bearings. Utility Model Content

[0004] In response to the above-mentioned defects of the above-mentioned existing technologies, the utility model proposes a parameter-adjustable damping steel support, which can not only work normally under the action of conventional temperature-changing displacement, but also set different damping parameters according to the earthquake zone and sudden changes such as earthquakes, and the basic dimensions of the support do not change significantly, thereby achieving protection for the bridge system without increasing too much cost, solving the protection and cost problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A parameter-adjustable damping steel bearing comprises an upper bearing plate, an intermediate steel lining plate, a spherical cap lining plate, an upper guide rail assembly, a lower guide rail assembly, a lower lining plate assembly, a lower bearing plate assembly, and a parameter-adjustable elastic damping element, wherein the upper bearing plate, the intermediate steel lining plate, and the spherical cap lining plate are arranged in sequence from top to bottom;

[0007] The bottom of the middle steel lining plate and the bottom of the spherical crown lining plate are simultaneously embedded in the lower lining plate assembly plate, and the lower lining plate assembly plate is arranged on the lower guide rail assembly, and the lower guide rail assembly is arranged on the lower support plate assembly; the left and right sides of the lower lining plate assembly plate are connected in the transverse bridge direction to set one end of the parameter-adjustable elastic damping element, and the other end of the parameter-adjustable elastic damping element is fixedly set on the lower support plate assembly, and the lower lining plate assembly plate and the lower guide rail assembly can slide relative to each other by friction; the middle part of the upper support plate and the middle steel lining plate is provided with a groove, and the upper guide rail assembly is provided in the groove, and the upper guide rail assembly is arranged along the longitudinal bridge direction, and the upper support plate and the middle steel lining plate can slide relative to each other by friction.

[0008] Furthermore, the bottom arc surface of the middle steel liner and the top surface of the spherical cap liner are bonded together.

[0009] Furthermore, the planar slide plate is provided between the upper support plate and the middle steel lining plate, and the spherical slide plate is provided between the middle steel lining plate and the spherical crown lining plate.

[0010] Furthermore, the cross section of the middle steel liner is T-shaped, and the lower liner assembly plate is concave.

[0011] Furthermore, an outer edge protrusion is provided at the bottom of the middle steel liner, and the outer edge protrusion is clamped on the inner wall of the lower liner assembly plate.

[0012] Furthermore, the upper support plate and the lower support plate assembly are cross-arranged, the upper guide rail assembly and the lower guide rail assembly are cross-arranged, and the lower guide rail assembly is arranged in the bottom groove of the lower lining plate assembly.

[0013] Furthermore, the parameter-adjustable elastic damping element is composed of an elastic element and a damping element, and the elastic element and the damping element are connected in series or in parallel.

[0014] Furthermore, the elastic element is a cylindrical spring or disc spring of different grades; and the damping element is a polymer material.

[0015] Furthermore, the damping element is rubber.

[0016] Furthermore, the parameter-adjustable elastic damping elements are symmetrically arranged in multiple groups.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model can meet all the functions of ordinary bridge supports and the needs of bridge seismic reduction and isolation through the combination of damping elements and supports. In addition, there will not be much adjustment to the support body under different earthquake mutation forces and different seismic resistance requirements. By adjusting the damping elements, different damping characteristics can be achieved to meet the seismic resistance requirements of the bridge. It has good economy and can reduce the cost of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the transverse cross section of the utility model;

[0020] Figure 2 This utility model Figure 1 In the corresponding top view, the up-down direction on the paper is the longitudinal direction of the bridge. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-2 The present invention will be further described in detail with reference to the specific embodiments, so as to facilitate a clear understanding of the present invention, but they do not constitute a limitation to the present invention.

[0022] Example 1

[0023] As attached Figure 1-2 As shown, a parameter-adjustable damping steel bearing of this embodiment includes an upper bearing plate 1, an intermediate steel liner plate 3, a spherical cap liner plate 5, an upper guide rail assembly 6, a lower guide rail assembly 7-1, a lower liner plate assembly plate 7, a lower bearing plate assembly 8, and a parameter-adjustable elastic damping element 9. The upper bearing plate 1, the intermediate steel liner plate 3, and the spherical cap liner plate 5 are arranged in sequence from top to bottom, with the bottom curved surface of the intermediate steel liner plate 3 and the top surface of the spherical cap liner plate 5 bonded together. A flat slide plate 2 is disposed between the upper bearing plate 1 and the intermediate steel liner plate 3, and a spherical slide plate 4 is disposed between the intermediate steel liner plate 3 and the spherical cap liner plate 5.

[0024] In this embodiment, the bottoms of the intermediate steel liner 3 and the spherical cap liner 5 are simultaneously embedded within the lower liner assembly plate 7. The lower liner assembly plate 7 is mounted on the lower guide rail assembly 7-1, which in turn is mounted on the lower support plate assembly 8. Specifically, the intermediate steel liner 3 has a T-shaped cross-section, while the lower liner assembly plate 7 is concave. The bottom of the intermediate steel liner 3 is provided with an outer edge protrusion that engages with the inner wall of the lower liner assembly plate 7.

[0025] like Figure 1-2 As shown, in this embodiment, one end of a parameter-adjustable elastic damping element 9 is connected to the left and right sides of the lower liner assembly 7 in the transverse direction. The other end of the parameter-adjustable elastic damping element 9 is fixed to the lower support plate assembly 8. The lower liner assembly 7 and the lower guide rail assembly 7-1 can slide relative to each other by friction. The upper support plate 1 and the middle steel liner 3 are provided with a groove in the middle, and the upper guide rail assembly 6 is disposed in the groove. The upper guide rail assembly 6 is arranged along the longitudinal direction of the bridge, and the upper support plate 1 and the middle steel liner 3 can slide relative to each other by friction.

[0026] In this embodiment, the parameter-adjustable elastic damping element 9 is composed of an elastic element and a damping element. Figure 1-2 As shown, the elastic element and the damping element are connected in series. The elastic element is a cylindrical spring of different grades, and the damping element is rubber. The parameter-adjustable elastic damping elements 9 are symmetrically arranged in four groups.

[0027] In this embodiment, the upper bearing plate 1 and lower bearing plate assembly 8 are arranged in a cross-section, while the upper guide rail assembly 6 and lower guide rail assembly 7-1 are also arranged in a cross-section, with the lower guide rail assembly 7-1 positioned within a groove at the bottom of the lower liner plate assembly 7. Under normal circumstances, the upper bearing plate 1 accommodates longitudinal displacement of the bridge, while the lower bearing plate assembly 8 constrains transverse displacement. In the event of an earthquake, the elastic damping element 9, with adjustable parameters, can resist varying levels of seismic forces. When the damping force in the constraining direction exceeds the damping force, the element slips in the constraining direction with a certain degree of stiffness, achieving shock absorption and energy dissipation, thereby protecting the bearing and bridge.

[0028] In this embodiment, the stiffness and damping parameters of the spring and rubber of the parameter-adjustable elastic damping element 9 are adjustable, and different stiffness and damping can be preset. After yielding, the seismic force can be resisted by consuming energy through sliding friction with large displacement, thereby reducing seismic energy, providing sliding isolation, and providing displacement protection.

[0029] Example 2

[0030] In this embodiment, the elastic element and the damping element are connected in parallel. The elastic element is a disc spring of different grades, and the damping element is a viscous damper. Other aspects are the same as those in Embodiment 1 and will not be described in detail here.

[0031] The above is only a preferred embodiment of the present invention and does not constitute any formal limitation on the structure of the present invention. The layout and number of uses of the present invention are not limited to this example and can be optimized according to the actual project. Any modification, equivalent change and decoration of the above embodiment based on the technical principle of the present invention without departing from the content of the technical solution of the present invention shall still be within the scope of the technical solution of the present invention.

Claims

1. A parameter-adjustable damping steel bearing, comprising an upper bearing plate (1), an intermediate steel lining plate (3), a spherical cap lining plate (5), an upper guide rail assembly (6), a lower guide rail assembly (7-1), a lower lining plate assembly plate (7), a lower bearing plate assembly (8) and a parameter-adjustable elastic damping element (9), wherein the upper bearing plate (1), the intermediate steel lining plate (3) and the spherical cap lining plate (5) are arranged in sequence from top to bottom, and characterized in that: The bottom of the middle steel lining plate (3) and the bottom of the spherical crown lining plate (5) are embedded in the lower lining plate assembly plate (7) at the same time. The lower lining plate assembly plate (7) is arranged on the lower guide rail assembly (7-1), and the lower guide rail assembly (7-1) is arranged on the lower support plate assembly (8); one end of the parameter-adjustable elastic damping element (9) is connected to the left and right sides of the lower lining plate assembly plate (7) in a transverse bridge direction, and the other end of the parameter-adjustable elastic damping element (9) is fixedly arranged on the lower support plate assembly (8), and the lower lining plate assembly plate (7) and the lower guide rail assembly (7-1) can slide relative to each other by friction; a groove is arranged in the middle of the upper support plate (1) and the middle steel lining plate (3), and an upper guide rail assembly (6) is arranged in the groove. The upper guide rail assembly (6) is arranged along the longitudinal bridge direction, and the upper support plate (1) and the middle steel lining plate (3) can slide relative to each other by friction.

2. The parameter adjustable damping steel support according to claim 1, characterized in that: The bottom arc surface of the middle steel liner (3) and the top surface of the spherical cap liner (5) are bonded together.

3. The parameter adjustable damping steel support according to claim 1, characterized in that: A flat slide plate (2) is arranged between the upper support plate (1) and the middle steel lining plate (3), and a spherical slide plate (4) is arranged between the middle steel lining plate (3) and the spherical crown lining plate (5).

4. The parameter adjustable damping steel support according to claim 1, characterized in that: The cross section of the middle steel liner (3) is T-shaped, and the lower liner assembly plate (7) is concave-shaped.

5. The parameter-adjustable damping steel support according to claim 4, characterized in that: The bottom of the middle steel liner (3) is provided with an outer edge protrusion, and the outer edge protrusion is clamped on the inner wall of the lower liner assembly plate (7).

6. The parameter adjustable damping steel support according to claim 1, characterized in that: The upper support plate (1) and the lower support plate assembly (8) are arranged in a cross pattern, the upper guide rail assembly (6) and the lower guide rail assembly (7-1) are arranged in a cross pattern, and the lower guide rail assembly (7-1) is arranged in a bottom groove of the lower lining plate assembly plate (7).

7. The parameter adjustable damping steel support according to claim 1, characterized in that: The parameter-adjustable elastic damping element (9) is composed of an elastic element and a damping element, and the elastic element and the damping element are connected in series or in parallel.

8. The parameter adjustable damping steel support according to claim 7, characterized in that: The elastic element is a cylindrical spring or a disc spring of different grades; the damping element is a polymer material.

9. The parameter-adjustable damping steel support according to claim 8, characterized in that: The damping element is rubber.

10. The parameter adjustable damping steel support according to claim 1, characterized in that: The parameter-adjustable elastic damping elements (9) are multiple groups arranged symmetrically.

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