Anti-beam-falling damper and combined damping support

Abstract

The application discloses a kind of anti-beam damper and combined damping support, including upper support steel plate (1) and lower support steel plate (2), it is characterized by: steel wire rope net damper is arranged between the upper support steel plate (1) and lower support steel plate (2) and located the periphery of support body (3), steel wire rope net damper includes steel wire rope net (4), anchorage node (5) and intermediate node (6), anchorage node (5) is located the uppermost end and the lowermost end of steel wire rope net (4), the upper end of steel wire rope net (4) is fixed on the upper support steel plate (1) by anchorage node (5), the lower end of steel wire rope net (4) is fixed on the lower support steel plate (2) by anchorage node (5), the adjacent two rows of steel wire ropes of remaining intersection part are connected together by intermediate node (6), the application has compact structure, small space occupation, with anti-beam function and with greater damping, can be applicable to 9 degrees and below various different intensity of earthquake environment.

Description

Technical Field

[0001] This invention relates to a damper and a combined damping bearing, and more particularly to a beam-prevention damper and a combined damping bearing, belonging to the field of bridge seismic isolation and damping technology. Background Technology

[0002] Earthquakes are one of the most frequent natural disasters, and for a long time, humanity has been "powerless" in the face of this natural calamity. The direct cause of loss of life and property in earthquakes is the violent shaking, damage, and collapse of buildings. Since the 20th century, humankind has continuously explored structural control technologies for earthquake resistance, energy dissipation, and vibration reduction in buildings, and has successively invented and created corresponding products and technologies. The circumferential wire rope series of combined damping supports is one of the best examples.

[0003] While circumferential wire rope series combined damping supports can play the roles of "circumferential seismic resistance" and "prevention of beam collapse," with significant energy dissipation and vibration reduction effects, existing circumferential wire rope dampers are relatively large in size and require a large space for installation, thus limiting the use of circumferential wire rope dampers and combined damping supports.

[0004] Furthermore, other existing damping and isolation bearings, such as damped rubber bearings, metal yield damping bearings, and friction pendulum bearings, all have certain technical drawbacks and limitations in application. They either have poor damping and vibration reduction effects, poor fatigue resistance, and lack the "anti-beam-falling" function. This invention overcomes the shortcomings of the aforementioned damping bearings, representing a certain degree of technological progress. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing circumferential wire rope dampers, which are bulky, require a large space for installation, and necessitate "beam-supporting" operations during installation and replacement, resulting in high construction difficulty and limited application. This invention provides an anti-falling beam damper and a combined damping support. This support effectively solves the deficiencies of existing bridge supports, featuring a compact structure, small space occupation, no "beam-supporting" operations required for installation and replacement, significantly enhanced damping effect, and an anti-falling beam function, enabling it to adapt to earthquakes of various intensities.

[0006] To achieve the above-mentioned objectives, the technical solution of this invention is: a beam-falling damper and a combined damping support, comprising an upper support steel plate and a lower support steel plate, with a support body disposed between the upper and lower support steel plates. A wire rope mesh damper is disposed between the upper and lower support steel plates and on the periphery of the support body. The wire rope mesh damper includes a wire rope mesh, anchoring nodes, and intermediate nodes. The wire rope mesh is a mesh structure formed by one or more interwoven wire ropes. The wire rope mesh is arranged in a ring around the periphery of the support body. The upper end of the wire rope mesh is fixed to the upper support steel plate through anchoring nodes, and the lower end of the wire rope mesh is fixed to the lower support steel plate through anchoring nodes. The adjacent rows of wire ropes at the remaining intersections are connected together through intermediate nodes.

[0007] Furthermore, the wire rope mesh damper is composed of multiple layers of wire rope mesh in a ring structure, with adjacent layers of wire rope mesh connected by anchoring nodes and intermediate nodes. The upper end of each layer of wire rope mesh is fixed to the upper support steel plate by anchoring nodes, and the lower end of each layer of wire rope mesh is fixed to the lower support steel plate by anchoring nodes.

[0008] Furthermore, the wire rope net is formed by one or more wire ropes interlacing and connecting at anchoring nodes and intermediate nodes. The anchoring nodes are located at the top and bottom of the wire rope net, and the remaining interlacing and connecting parts of the wire ropes are provided with intermediate nodes connecting two adjacent rows of wire ropes.

[0009] Furthermore, the anchoring node is an anchor, one end of which is a cavity structure for clamping and fixing the wire rope, and the other end of which is a connecting plate. The connecting plate has an installation hole, and a bolt for connecting to the upper support steel plate or the lower support steel plate is installed in the installation hole.

[0010] Furthermore, the anchoring nodes and intermediate nodes are arranged in a quincunx pattern.

[0011] Furthermore, the position of the intermediate node can move relative to the displacement of the wire rope net, while the position of the anchoring node is relatively fixed and can only move as a whole with the movement of the support steel plate.

[0012] Furthermore, the intermediate node adopts a double sleeve structure or other fixing fasteners. The double sleeve structure is two sleeve structures fixed together or an integrated double sleeve structure.

[0013] Furthermore, the bearing body can be a rubber bearing, a spherical steel bearing, a pot bearing, a friction pendulum bearing, or other types of bridge bearings.

[0014] The beneficial effects of this invention are:

[0015] 1. The present invention installs a wire rope mesh damper on the basis of ordinary bridge bearings, which can provide strong damping force for bridge bearings at any angle, achieving a very good damping and shock reduction effect.

[0016] 2. This invention employs anchoring nodes and intermediate nodes. The anchoring nodes serve to fix the wire rope net, while the intermediate nodes serve to constrain the adjacent rows of wire ropes. By adjusting the density of the anchoring nodes and intermediate nodes, the stiffness and damping of the wire rope net damper can be adjusted.

[0017] 3. The present invention has a compact structure, occupies little space, and has strong applicability. It can be applied not only to newly built bridges, but also to the reinforcement and renovation of existing bridges. It is convenient to construct and maintain, and also has the function of "preventing beam falling". It can be applied to various seismic environments of different intensities of 9 degrees and below. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the wire rope mesh damper of the present invention.

[0020] Figure 3 This is a schematic diagram of the steel wire rope net structure of the present invention.

[0021] Figure 4 This is a diagram showing the state of the steel wire rope net of the present invention under stress.

[0022] Figure 5 This is a structural schematic diagram of the first embodiment of the wire rope net of the present invention.

[0023] Figure 6 This is a structural schematic diagram of the second embodiment of the steel wire rope net of the present invention.

[0024] In the diagram: 1. Upper support steel plate, 2. Lower support steel plate, 3. Support body, 4. Wire rope net, 5. Anchoring node, 6. Intermediate node, 7. Bolt. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] See Figures 1 to 6The present invention discloses a beam-falling damper and a combined damping support, comprising an upper support steel plate 1 and a lower support steel plate 2, wherein a support body 3 is provided between the upper support steel plate 1 and the lower support steel plate 2. The present invention is characterized in that a wire rope mesh damper is provided between the upper support steel plate 1 and the lower support steel plate 2 and located on the periphery of the support body 3. The wire rope mesh damper includes a wire rope mesh 4, anchoring nodes 5, and intermediate nodes 6. The wire rope mesh 4 is a mesh structure formed by one or more interwoven wire ropes. The wire rope mesh 4 is arranged in a ring around the periphery of the support body 3. The upper end of the wire rope mesh 4 is fixed to the upper support steel plate 1 through the anchoring nodes 5, and the lower end of the wire rope mesh 4 is fixed to the lower support steel plate 2 through the anchoring nodes 5. Adjacent rows of wire ropes at the intersection are connected together through the intermediate nodes 6.

[0027] The wire rope mesh damper is composed of multiple layers of wire rope mesh 4 stacked in a ring structure. Adjacent layers of wire rope mesh 4 are connected by anchoring nodes 5 and intermediate nodes 6. The upper end of each layer of wire rope mesh 4 is fixed to the upper support steel plate 1 by anchoring nodes 5, and the lower end of each layer of wire rope mesh 4 is fixed to the lower support steel plate 2 by anchoring nodes 5.

[0028] The wire rope net 4 is formed by one or more wire ropes interlacing and connecting at anchoring nodes 5 and intermediate nodes 6. Anchoring nodes 5 are located at the top and bottom of the wire rope net 4, and intermediate nodes 6 are provided at the remaining interlacing and connecting parts of the wire ropes to connect adjacent rows of wire ropes.

[0029] The anchoring node 5 is an anchor, one end of which is a cavity structure for clamping and fixing the wire rope, and the other end of which is a connecting plate. The connecting plate has an installation hole, and a bolt 7 is installed in the installation hole to connect with the upper support steel plate 1 or the lower support steel plate 2.

[0030] The anchoring nodes 5 and intermediate nodes 6 are arranged in a quincunx pattern.

[0031] The position of the intermediate node 6 can move relative to the displacement of the wire rope net 4, while the position of the anchor node 5 is relatively fixed and can only move as a whole with the movement of the support steel plate.

[0032] The intermediate node 6 adopts a double sleeve structure or other fixing fasteners. The double sleeve structure is two sleeve structures fixed together or an integrated double sleeve structure.

[0033] The bearing body 3 is a rubber bearing, a spherical steel bearing, a pot bearing, a friction pendulum bearing, or other types of bridge bearings.

[0034] As attached Figure 1 , Figure 2As shown, the upper support steel plate 1, lower support steel plate 2, and support body 3 used in this invention have the same structure as those in the prior art. The difference is that this invention installs a wire rope mesh damper on the basis of the existing bridge support. The structure and principle of the wire rope mesh damper are different from those of the circumferential wire rope damper in the prior art. The wire rope mesh damper of this application generates physical deformations such as torsion, elongation, and shearing of the wire ropes in the mesh after being subjected to force, thereby causing dry friction between the intertwined wires to dissipate energy and achieve the technical effect of energy dissipation and vibration reduction.

[0035] The wire rope mesh damper is positioned between the upper support steel plate 1 and the lower support steel plate 2, and is arranged in a ring around the periphery of the support body 3. The wire rope mesh damper is not fixed to the outer circumferential surface of the support body 3. The wire rope mesh damper mainly includes a wire rope mesh 4, anchoring nodes 5, and intermediate nodes 6. The wire rope mesh 4 is a mesh structure formed by one or more interwoven wire ropes. Spatially, the wire rope mesh 4 is a cylindrical mesh structure with open ends.

[0036] The upper end of the wire rope mesh 4 is fixed to the upper support steel plate 1 via anchoring nodes 5, and the lower end of the wire rope mesh 4 is fixed to the lower support steel plate 2 via anchoring nodes 5. Anchoring nodes 5 are anchors; one end of the anchor is a cavity structure for clamping and fixing the wire rope, and the other end is a connecting plate with mounting holes. Bolts 7, which connect to the upper support steel plate 1 or the lower support steel plate 2, are installed in the mounting holes for easy installation and disassembly.

[0037] In addition to the anchoring nodes 5, adjacent rows of steel wire ropes intersecting on the wire rope net 4 are connected by intermediate nodes 6. The position of the intermediate nodes 6 moves relative to the deformation of the wire rope net. The intermediate nodes 6 adopt a double sleeve structure or other fixing fasteners. The double sleeve structure consists of two sleeve structures fixed together or an integrated double sleeve structure.

[0038] Furthermore, the present invention can be made not only with a single layer of ring-shaped steel wire rope mesh 4, but also with multiple layers of ring-shaped steel wire rope mesh 4 stacked together. Adjacent layers of steel wire rope mesh 4 are connected by anchoring nodes 5 and intermediate nodes 6. The upper end of each layer of steel wire rope mesh 4 is fixed to the upper support steel plate 1 by anchoring nodes 5, and the lower end of each layer of steel wire rope mesh 4 is fixed to the lower support steel plate 2 by anchoring nodes 5. The use of a multi-layer steel wire rope mesh 4 structure can significantly enhance the stiffness and damping of the steel wire rope mesh damper and achieve very good technical results.

[0039] There are various structural forms for steel wire rope mesh 4, the main ones being as follows:

[0040] The wire rope net 4 is composed of a single wire rope arranged in a spiral and connected by anchoring nodes 5 and intermediate nodes 6. The anchoring nodes 5 and intermediate nodes 6 are arranged in a quincunx pattern. The anchoring nodes 5 are located at the top or bottom of the wire rope net 4. The anchoring nodes 5 are used to connect and fix the wire rope net 4 to the upper support plate 1 or the lower support plate 2. The intermediate nodes 6 connect other intersecting adjacent rows of wire ropes.

[0041] In the above embodiments and other embodiments, the wire rope mesh 4 needs to be connected and fixed to the upper support steel plate 1 and the lower support steel plate 2. The upper end of the wire rope mesh 4 is connected and fixed to the upper support steel plate 1 through anchoring nodes 5, and the lower end of the wire rope mesh 4 is connected and fixed to the lower support steel plate 2 through anchoring nodes 5. The position of the intermediate node 6 can move relatively, while the position of the anchoring node 5 is relatively fixed. The anchoring node 5 can only move as a whole with the movement of the support steel plate.

[0042] In addition, the present invention can also adjust the stiffness and damping of the wire rope mesh damper by increasing or decreasing the number of anchor nodes 5 and / or intermediate nodes 6 and adjusting the density of anchor nodes 5 and intermediate nodes 6.

[0043] The working principle and process of this invention are as follows: Under the action of external forces such as earthquakes, the bridge bearings undergo shear deformation, and the upper bearing steel plate 1 and the lower bearing steel plate 2 are displaced relative to each other. At this time, the wire rope net 4 will be stretched, and the wire rope segments between the anchor node 5 and the intermediate node 6, as well as between two adjacent intermediate nodes 6, will undergo torsion, elongation and shear deformation. Dry friction will be generated between the intertwined wires, and the seismic energy will be dissipated through friction, thereby achieving the damping and shock reduction effect.

[0044] The following chart compares the mechanical properties of supports without wire rope mesh dampers and supports with wire rope mesh dampers:

[0045] High-damping rubber bearing Ordinary spherical bearing This invention is a steel wire rope net. Bearing capacity (kN) 10000 10000 10000 Planar dimensions (mm × mm) 1050×1050 870×870 950×950 Shear equivalent stiffness (kN / m) 3600 0 4900 Damping 0.15 0 0.2

[0046] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple substitutions, improvements, and variations can be made to the present invention without departing from its conceptual framework. All such simple substitutions, improvements, and variations should be considered within the scope of protection of the present invention.

Claims

1. A combined damping support for preventing beam fall, comprising an upper support steel plate (1) and a lower support steel plate (2), wherein a support body (3) is disposed between the upper support steel plate (1) and the lower support steel plate (2), characterized in that: A wire rope mesh damper is provided between the upper support steel plate (1) and the lower support steel plate (2) and on the periphery of the support body (3). The wire rope mesh damper includes a wire rope mesh (4), an anchoring node (5), and an intermediate node (6). The wire rope mesh (4) is a mesh structure formed by one or more wire ropes interwoven together. One or more wire ropes of the wire rope mesh (4) are interwoven at the anchoring node (5) and the intermediate node (6). The wire rope mesh (4) is arranged in a ring on the support body (3). The upper end of the wire rope net (4) is fixed to the upper support steel plate (1) through the anchoring node (5), and the lower end of the wire rope net (4) is fixed to the lower support steel plate (2) through the anchoring node (5). The two adjacent rows of wire ropes that intersect are connected together through the intermediate node (6). The position of the intermediate node (6) can move relative to the displacement of the wire rope net (4). The position of the anchoring node (5) is relatively fixed. The anchoring node (5) can only move as a whole with the movement of the support steel plate.

2. The anti-fall beam combined damping support according to claim 1, characterized in that: The wire rope mesh damper is composed of multiple layers of wire rope mesh (4) in a ring structure. The adjacent two layers of wire rope mesh (4) are connected by anchoring nodes (5) and intermediate nodes (6). The upper end of each layer of wire rope mesh (4) is fixed to the upper support steel plate (1) by anchoring nodes (5), and the lower end of each layer of wire rope mesh (4) is fixed to the lower support steel plate (2) by anchoring nodes (5).

3. The anti-fall beam combined damping support according to claim 1, characterized in that: The anchoring nodes (5) are located at the top and bottom of the wire rope net (4), and the remaining wire rope interlacing connection parts are provided with intermediate nodes (6).

4. The anti-fall beam combined damping support according to claim 1, characterized in that: The anchoring node (5) is an anchor. One end of the anchor is a cavity structure for clamping and fixing the wire rope, and the other end of the anchor is a connecting plate. The connecting plate has an installation hole, and a bolt (7) is installed in the installation hole to connect with the upper support steel plate (1) or the lower support steel plate (2).

5. A combined damping support for preventing beam fall according to claim 1 or 3, characterized in that: The intermediate node (6) adopts a double sleeve structure or other fixing fasteners. The double sleeve structure is two sleeve structures fixed together or an integrated double sleeve structure.

6. The anti-fall beam combined damping support according to claim 1, characterized in that: The bearing body (3) is a rubber bearing, a spherical steel bearing, a pot bearing, a friction pendulum bearing, or other types of bridge bearings.

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