Viscous damper for energy dissipation and shock absorption of shock insulation layer

Abstract

The utility model relates to the technical field of dampers, and discloses a viscous damper for energy dissipation and shock absorption of a shock insulation layer, which comprises a viscous damper main body, the top of the viscous damper main body is movably connected with a mounting seat I, and the end part of a piston rod of the viscous damper main body is movably connected with a mounting seat II. A heightening connecting piece is fixedly mounted on the mounting seat II through a bolt; the heightening connecting piece comprises a lower connecting plate and an upper mounting plate, the lower mounting plate is connected with the second mounting base, a lower groove-shaped frame is welded to the lower mounting plate, an upper groove-shaped frame is welded to the upper mounting plate, four adjusting long bolts are connected between the lower groove-shaped frame and the upper groove-shaped frame through nuts, and the adjusting long bolts are connected with the lower connecting plate through nuts. And two opposite reinforcing plates are welded between the lower groove-shaped frame and the upper groove-shaped frame. The height difference between the main body and different bridge bodies can be adapted through the adjustable heightening connecting piece, and the universal adaptability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of dampers, in particular to a viscous damper used for energy dissipation and vibration reduction of a seismic isolation layer. Background Art

[0002] With the continuous improvement of my country's infrastructure, the amount of engineering projects is also getting larger and larger, especially in bridge projects. In order to ensure the quality of use and service life, in order to avoid the impact of earthquakes on bridges, the seismic performance of bridge engineering structures is generally improved, and viscous dampers are used for seismic buffering. Therefore, the installation of viscous dampers is also a top priority.

[0003] As disclosed in announcement No. CN114875773B, a fixed installation structure for a viscous damper for bridge seismic resistance is mainly characterized by comprising a column, the top surface of the column is fixedly connected to a bridge frame, the column and the side wall of the bridge frame are both pre-embedded with embedded connecting parts, the side walls of the embedded connecting parts are both fixedly connected with a plurality of reinforcing ribs, the side walls of the reinforcing ribs are fixedly connected with anti-falling barbs, the inner parts of the side walls of the reinforcing ribs are each provided with a circular groove, the circular groove passes through the embedded connecting part, the side walls of the circular groove are fixedly connected with a partition, one side of the partition is a filling cavity, one side of the partition is provided with an extrusion assembly, the other side of the partition is a reinforcement cavity, the other side of the partition is provided with a reinforcement assembly, a damper body is provided on the lower side of the bridge frame, and connecting plates are movably connected to both ends of the damper body, the connecting plate on the left side is fixedly connected to the embedded connecting part on the column, and the top surface of the connecting plate on the right side is fixedly connected with an increased connecting block, and the increased connecting block is fixedly connected to the embedded connecting part on the bridge frame.

[0004] The viscous damper structure in the aforementioned application compensates for the height difference between the connecting plate and the bridge body by raising the connecting block, thereby connecting the viscous damper's piston rod to the bridge body. The raised connecting block in the aforementioned application is a monolithic structure, customized according to the actual height difference and unable to adapt to different height differences. The universal adaptability of the raised components is poor, and the long lead time for customizing the raised components may affect construction and installation. To address the aforementioned issues, a viscous damper for energy dissipation and vibration reduction in a seismic isolation layer is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a viscous damper for energy dissipation and vibration reduction of a seismic isolation layer in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: a viscous damper for energy dissipation and vibration reduction in a seismic isolation layer, comprising a viscous damper body, the top of the viscous damper body being movably connected to a first mounting seat, the end of a piston rod of the viscous damper body being movably connected to a second mounting seat, and a height-increasing connector being fixedly mounted on the second mounting seat by bolts;

[0007] The height-increasing connecting member includes a lower connecting plate and an upper mounting plate, the lower mounting plate is connected to the second mounting seat, a lower trough frame is welded on the lower mounting plate, an upper trough frame is welded on the upper mounting plate, four adjusting long bolts are connected between the lower trough frame and the upper trough frame through nuts, and two opposite reinforcing plates are welded between the lower trough frame and the upper trough frame.

[0008] In a preferred embodiment, the mounting seat 1 includes a connecting plate 1 and two supporting plates 1, the two supporting plates 1 are welded to the connecting plate 1, and the viscous damper body is movably connected to the supporting plate 1 via a pin.

[0009] In a preferred embodiment, the mounting seat 2 includes a connecting plate 2 and two support plates 2, the two support plates 1 are welded to the connecting plate 2, and the piston rod of the viscous damper body is movably connected to the paper board 1 through a pin.

[0010] In a preferred embodiment, the lower trough frame has four through holes one, and the adjusting long bolt passes through the through hole one.

[0011] In a preferred embodiment, the four through holes 2 of the upper channel frame are each penetrated by the adjusting long bolt.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] 1. In the present invention, by adjusting the position of the long bolt on the lower trough frame, the height of the entire height-increasing connector is adjusted to adapt to the installation height difference between the bridge body and the mounting base. Then, the personnel cut the reinforcement plate of appropriate size on site and weld it to the lower trough frame and the upper trough frame, thereby improving the shear resistance of the height-increasing connector. The height-increasing connector with adjustable structure avoids the need for personnel to customize the height-increasing connector of a specific height, improves the adaptability and versatility of the height-increasing connector, and avoids the customization cycle affecting the installation of the viscous damper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper trough frame and the lower trough frame in the utility model.

[0017] Markings in the figure: 1-viscous damper body, 2-mounting seat 1, 3-mounting seat 2, 4-heightening connector, 5-lower mounting plate, 6-upper mounting plate, 7-lower trough frame, 8-upper trough frame, 9-adjusting long bolt, 10-reinforcement plate, 11-connecting plate 1, 12-support plate 1, 13-connecting plate 2, 14-support plate 2, 15-through hole 1, 16-through hole 2. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] The following will be combined Figure 1-Figure 3 A viscous damper for energy dissipation and vibration reduction in a seismic isolation layer according to an embodiment of the utility model is described in detail.

[0020] Example:

[0021] The present invention provides a viscous damper for energy dissipation and vibration reduction of a seismic isolation layer, with reference to Figure 1 and Figure 2 As shown, it includes a viscous damper body 1, the top of the viscous damper body 1 is movably connected to a mounting seat 2, the piston rod end of the viscous damper body 1 is movably connected to a mounting seat 2 3, and an increasing connection piece 4 is fixedly installed on the mounting seat 2 3 by bolts. In this structure, the mounting seat 1 2 is connected to the embedded screw of the pier, and the increasing connection piece 4 is connected to the embedded screw of the bridge body. The increasing connection piece 4 is used to make up for the installation height difference between the mounting seat 2 3 and the bridge body, and then the mounting seat 2 3 is connected to the increasing connection piece 4, so that the viscous damper body 1 is horizontally fixed between the pier and the bridge body. In this way, when an earthquake occurs, the viscous damper body 1 can absorb and consume seismic energy, thereby improving the seismic resistance of the bridge.

[0022] It should be noted that the viscous damper is a prior art technology, and its principle is publicly known. It is based on the energy dissipation properties of viscous materials. Viscous materials are typically polymers with viscous damping properties. Under normal circumstances, viscous materials exhibit low stiffness and low damping effect. However, when subjected to external forces, they deform and generate internal friction, thereby absorbing and dissipating energy.

[0023] refer to Figure 1 and Figure 3As shown, the heightening connector 4 includes a lower mounting plate 5 and an upper mounting plate 6, the lower mounting plate 5 is connected to the mounting seat 2 3, a lower trough frame 7 is welded on the lower mounting plate 5, an upper trough frame 8 is welded on the upper mounting plate 6, four adjusting long bolts 9 are connected between the lower trough frame 7 and the upper trough frame 8 through nuts, and two opposite reinforcing plates 10 are welded between the lower trough frame 7 and the upper trough frame 8. This structure, the lower mounting plate 5, the upper mounting plate 6, the adjusting long bolts 9 and the reinforcing plate 10 constitute a heightening connector 4 that can be freely adjusted in height according to the height difference on site, and the upper mounting plate 6 is connected to the embedded screw of the bridge body;

[0024] During the actual adjustment and installation, the personnel adjust the position of the long bolt 9 on the lower trough frame 7 to adjust the height of the entire height-increasing connector 4 to adapt to the installation height difference between the bridge body and the mounting seat 2 3. Then the personnel cut the reinforcement plate 10 of appropriate size on site and weld it to the lower trough frame 7 and the upper trough frame 8, thereby improving the shear resistance of the height-increasing connector 4.

[0025] refer to Figure 1 As shown, the mounting base 2 includes a connecting plate 11 and two support plates 12. The two support plates 12 are welded to the connecting plate 11. The viscous damper body 1 is movably connected to the support plates 12 via a pin. In this structure, the viscous damper body 1 is connected to the connecting plate 11 via the support plates 12. The connecting plate 11 is connected to the embedded screws of the pier, thereby connecting the bottom of the viscous damper body 1 to the pier.

[0026] refer to Figure 1 As shown, the mounting seat 2 3 includes a connecting plate 2 13 and two support plates 2 14. The two support plates 1 12 are welded to the connecting plate 2 13. The piston rod of the viscous damper body 1 is movably connected to the support plate 2 14 through a pin. In this structure, the piston rod of the viscous damper body 1 is connected to the connecting plate 2 13 through the support plate 2 14, and the connecting plate 2 13 is connected to the bridge body through the heightening connector 4, thereby connecting the piston rod of the viscous damper body 1 to the bridge body.

[0027] refer to Figure 1 and Figure 3 As shown, the four through holes 15 of the lower trough frame 7 are passed through the long adjusting bolts 9 . This structure utilizes the through holes 15 to facilitate the connection between the long adjusting bolts 9 and the lower trough frame 7 .

[0028] refer to Figure 1 and Figure 3 As shown, the four through holes 16 of the upper trough frame 8 are passed through the two adjusting long bolts 9 . This structure utilizes the two through holes 16 to facilitate the connection between the adjusting long bolts 9 and the trough frame 8 .

[0029] The implementation principle of a viscous damper for energy dissipation and shock absorption of a seismic isolation layer in an embodiment of the present application is as follows: when installing the viscous damper main body 1, the personnel first connects the connecting plate 11 of the mounting seat 2 with the embedded bolts of the bridge pier, thereby connecting the bottom of the viscous damper main body 1 to the bridge pier, and then the personnel connects the upper mounting plate 6 of the heightened connecting member 4 with the embedded bolts of the bridge body, and then according to the height difference between the bridge body and the mounting seat 2 3, the personnel adjusts the position of the long bolt 9 by adjusting the lower slot frame 7, thereby adjusting the height of the entire heightened connecting member 4 to adapt to the installation height difference between the bridge body and the mounting seat 2 3. After the adjustment, the personnel connects the support plate 2 13 of the mounting seat 2 3 with the lower mounting plate 5, thereby horizontally connecting the viscous damper main body 1 to the bridge body, and then the personnel cuts a reinforcement plate 10 of appropriate size on site and welds it to the lower slot frame 7 and the upper slot frame 8, thereby improving the shear resistance of the heightened connecting member 4.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A viscous damper for energy dissipation and vibration reduction in a seismic isolation layer, comprising a viscous damper body (1), characterized in that: The top of the viscous damper body (1) is movably connected to a mounting seat 1 (2), the piston rod end of the viscous damper body (1) is movably connected to a mounting seat 2 (3), and a heightening connecting member (4) is fixedly mounted on the mounting seat 2 (3) by means of bolts; The height-increasing connecting member (4) comprises a lower mounting plate (5) and an upper mounting plate (6); the lower mounting plate (5) is connected to the second mounting seat (3); a lower trough frame (7) is welded to the lower mounting plate (5); an upper trough frame (8) is welded to the upper mounting plate (6); four adjusting long bolts (9) are connected between the lower trough frame (7) and the upper trough frame (8) via nuts; and two opposite reinforcing plates (10) are welded between the lower trough frame (7) and the upper trough frame (8).

2. The viscous damper for energy dissipation and vibration reduction of a seismic isolation layer according to claim 1, characterized in that: The mounting seat (2) comprises a connecting plate (11) and two supporting plates (12), the two supporting plates (12) are welded to the connecting plate (11), and the viscous damper body (1) is movably connected to the supporting plate (12) via a pin.

3. The viscous damper for energy dissipation and vibration reduction of a seismic isolation layer according to claim 2, characterized in that: The second mounting seat (3) includes a second connecting plate (13) and two second supporting plates (14), the two first supporting plates (12) are welded to the second connecting plate (13), and the piston rod of the viscous damper body (1) is movably connected to the second supporting plate (14) through a pin.

4. The viscous damper for energy dissipation and vibration reduction of a seismic isolation layer according to claim 1, characterized in that: The lower trough frame (7) has four through holes (15), and the adjusting long bolt (9) passes through the through hole (15).

5. The viscous damper for energy dissipation and vibration reduction of a seismic isolation layer according to claim 1, characterized in that: The upper slotted frame (8) has four through holes (16) therein, and the adjusting long bolt (9) passes through the through holes (16).

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