An assembled metal damper with tensile resistance

Abstract

The assembled metal damper with anti-tensile function in the utility model belongs to the technical field of dampers. The assembled metal damper with anti-tensile function is composed of an upper plate assembly, a sliding assembly, a ball head, a bottom plate assembly and a column. On the one hand, the lower end of the column and the bottom plate assembly cooperate with each other through an inverted T-shaped structural end and an inverted T-shaped step hole to realize that the bottom plate assembly and the column are fixed as one, which can avoid structural deformation and welding stress concentration caused by welding, reduce the production and manufacturing costs such as shape correction and stress relief annealing, and ensure the stress of the damper structure. On the other hand, the upper end of the column is connected to the ball head in the sliding assembly, and the lower end of the column is connected to the bottom plate assembly, which can meet the horizontal and vertical free sliding requirements of the bridge under normal circumstances and the vertical tensile function, and when the vertical displacement of the bridge exceeds the gap between the ball head and the top wall of the rectangular sliding cavity under earthquake conditions, the seismic energy can be dissipated through the bending deformation of the column.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to an assembled metal damper with a tensile resistance function. Background Art

[0002] In bridge projects, metal dampers are widely used as energy-absorbing components in various bridge projects. Existing metal dampers are mainly mortise-shaped, E-shaped steel, C-shaped steel, and triangular-shaped. Among them, the mortise-shaped metal damper has the same shock-absorbing performance in all directions, so it can meet the shock-absorbing needs of all directions in the horizontal direction of the bridge.

[0003] The existing tenon-type metal damper is generally connected to the fixed end by welding. When multiple tenon-type metal dampers are used in combination, the welding causes deformation, which affects the assembly performance of the product, and the welding causes stress concentration, which affects the durability of the product.

[0004] On the other hand, since the bridge has vertical displacement in an earthquake, conventional metal dampers do not have vertical tensile resistance and there is a certain risk of bridge beam falling. Utility Model Content

[0005] The utility model aims to provide an assembled metal damper with anti-tensile function. On the one hand, the lower end of the column and the base plate assembly cooperate with each other through the inverted T-shaped structural end and the inverted T-shaped step hole, so that the base plate assembly and the column are fixed as one, which can avoid structural deformation and welding stress concentration caused by welding, reduce the production and manufacturing costs such as shape correction and stress relief annealing, and ensure the damper structure is stressed. On the other hand, the upper end of the column is connected to the ball head in the sliding assembly, and the lower end of the column is connected to the base plate assembly, which can meet the horizontal and vertical free sliding requirements of the bridge under normal circumstances and the vertical tensile function, and when the vertical displacement of the bridge exceeds the gap between the ball head and the top wall of the rectangular sliding cavity under earthquake conditions, the seismic energy can be dissipated through the bending deformation of the column.

[0006] The technical solution adopted by the utility model is:

[0007] An assembled metal damper with anti-tensile function, comprising:

[0008] An upper plate assembly, wherein the upper plate assembly has a rectangular sliding cavity therein; a notch is provided in the middle of the bottom surface of the rectangular sliding cavity along its own length direction;

[0009] A rectangular sliding component is arranged in the rectangular sliding cavity, can slide along the length direction of the rectangular sliding cavity, and cannot escape from the notch; the sliding component is provided with a cylindrical hole along its height direction; the aperture of the lower end portion of the cylindrical hole gradually shrinks to form a shrinkage;

[0010] A ball head, the diameter of which is consistent with the inner diameter of the cylindrical hole; the ball head is located in the cylindrical hole and cannot escape from the shrinkage;

[0011] A bottom plate assembly, the bottom plate assembly is located below the upper plate assembly and has an inverted T-shaped step hole; the number of the inverted T-shaped step holes is consistent with the number of the cylindrical holes, and the positions of the inverted T-shaped step holes correspond to the rectangular sliding cavity;

[0012] A column, wherein the lower end of the column is an inverted T-shaped structural end that matches the inverted T-shaped step hole; the column is vertically arranged between the rectangular sliding cavity and the corresponding inverted T-shaped step hole; the inverted T-shaped structural end is located in the inverted T-shaped step hole; the upper end of the column passes through the notch and the constriction, and is detachably connected to the ball head;

[0013] Wherein, under normal circumstances, after the ball head is connected to the column, there are gaps between the lower and upper parts thereof and the top wall of the rectangular sliding cavity and the necking, respectively.

[0014] Furthermore, the upper plate assembly comprises:

[0015] The upper plate body has a rectangular through slot;

[0016] End stop plates, which are located at both ends of the rectangular through slot in the length direction and are detachably connected to the upper plate body;

[0017] A pressing plate, which is arranged on both sides of the rectangular through slot along the length direction of the rectangular through slot, covers the edge area of ​​the slot, and is detachably connected to the upper plate body;

[0018] Among them, the enclosed area between the upper plate body, the end stop plate and the pressure plate constitutes the rectangular sliding cavity; the gap between the pressure plates on both sides of the rectangular through groove constitutes the notch.

[0019] Furthermore, a buffer pad is provided on one side of the end stop plate facing the rectangular through slot.

[0020] Furthermore, the sliding assembly comprises:

[0021] A rectangular sliding block;

[0022] A rectangular plate-shaped tensile block, the tensile block is located on the bottom surface of the sliding block and is detachably connected to the sliding block;

[0023] Wherein, the cylindrical hole is opened on the combined structure of the sliding block and the tensile block, and the necking is located on the tensile block.

[0024] Furthermore, the base plate assembly comprises:

[0025] A bottom plate body, wherein the bottom plate body is provided with the inverted T-shaped step hole;

[0026] A clamping plate is located on the lower surface of the base plate body, closes all of the inverted T-shaped step holes, and is detachably connected to the base plate body.

[0027] Furthermore, the upper end of the column is a cylindrical portion; the cylindrical portion is threadedly connected to a threaded hole radially opened in the ball head.

[0028] Furthermore, the middle main body portion of the column is conical.

[0029] The beneficial effects of the utility model are:

[0030] The assembled metal damper with anti-tensile function in the utility model is composed of an upper plate assembly, a sliding assembly, a ball head, a bottom plate assembly and a column. On the one hand, the lower end of the column and the bottom plate assembly cooperate with each other through an inverted T-shaped structural end and an inverted T-shaped step hole, so that the bottom plate assembly and the column are fixed as one, which can avoid structural deformation and welding stress concentration caused by welding, reduce the production and manufacturing costs such as shape correction and stress relief annealing, and ensure the stress of the damper structure. On the other hand, the upper end of the column is connected to the ball head in the sliding assembly, and the lower end of the column is connected to the bottom plate assembly, which can meet the horizontal and vertical free sliding requirements of the bridge under normal circumstances and the vertical tensile function, and when the vertical displacement of the bridge exceeds the gap between the ball head and the top wall of the rectangular sliding cavity under earthquake conditions, the seismic energy can be dissipated through the bending deformation of the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a cross-sectional view of the assembled metal damper with anti-tensile function in the moving direction of the bridge in this embodiment.

[0033] Figure 2 A cross-sectional view of an assembled metal damper with tensile resistance in the limiting direction.

[0034] Figure 3 It is a top view of the base plate body in this embodiment.

[0035] Figure 4 It is a front view of the column in this embodiment.

[0036] Figure 5 2 is a top view of the column in this embodiment.

[0037] The accompanying drawings are marked as follows:

[0038] 100-upper plate assembly, 200-sliding assembly, 300-ball head, 400-bottom plate assembly, 500-column, 600-anchor assembly;

[0039] 110-rectangular sliding cavity, 120-notch, 130-upper plate body, 131-rectangular through slot, 140-end stop plate, 141-buffer pad, 150-pressing plate;

[0040] 210-cylindrical hole, 211-shrinkage, 220-tensile block, 230-sliding block;

[0041] 410-inverted T-shaped step hole, 420-bottom plate body, 430-pressing plate;

[0042] 510 - cylindrical part, 520 - middle main body part, 530 - inverted T-shaped structure end part. DETAILED DESCRIPTION

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0045] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0046] Figure 1 This is a cross-sectional view of the assembled metal damper with anti-tensile function in the moving direction of the bridge in this embodiment. Figure 2The figure is a cross-sectional view of an assembled metal damper with a tensile function in the limiting direction. The assembled metal damper with a tensile function includes an upper plate assembly 100. The upper plate assembly 100 is connected to the corresponding beam body by welding or bolting. The upper plate assembly 100 has at least one rectangular sliding cavity 110. A notch 120 is provided in the middle of the bottom surface of the rectangular sliding cavity 110 along its length direction. After the damper is installed in place, the length direction of the rectangular sliding cavity 110 and the length direction of the notch 120 are the movement direction of the bridge. As shown in the attached figure Figure 2 As shown in the figure, there are three rectangular sliding cavities 110 in the upper plate assembly 100. A rectangular sliding assembly 200 is provided in the rectangular sliding cavity 110. The length and height of the sliding assembly 200 are smaller than the length and height of the rectangular sliding cavity 110; the width of the sliding assembly 200 is the same as or slightly smaller than the width of the rectangular sliding cavity 110, and the width of the sliding assembly 200 is larger than the wide end of the notch 120. Therefore, the gap between the sliding assembly 200 and the rectangular sliding cavity 110 in the length direction is the horizontal sliding interval of the bridge; the two side walls in the width direction of the rectangular sliding cavity 110 restrict the movement of the sliding assembly 200; the notch 120 restricts the sliding assembly 200 from escaping from the rectangular sliding cavity 110. At least one cylindrical hole 210 is provided on the sliding assembly 200 along its own height direction, and the aperture of the lower end portion of the cylindrical hole 210 gradually shrinks to form a shrinkage 211. The cylindrical hole 210 has a ball head 300 therein, and the diameter of the ball head 300 is substantially consistent with the inner diameter of the cylindrical hole 210. Thus, the ball head 300 is in line contact with the inner wall of the cylindrical hole 210, and the ball head 300 cannot escape from the constriction 211.

[0047] In this embodiment, the assembled metal damper with tensile function also includes a base plate assembly 400 and a column 500. Figure 1 and attached Figure 2 As shown in . The bottom plate assembly 400 is located below the upper plate assembly 100 and is connected to the corresponding pier as a whole through the anchor assembly 600. An inverted T-shaped step hole 410 is provided on the bottom plate assembly 400. The number of the inverted T-shaped step holes 410 is consistent with the number of the cylindrical holes 210, and their positions correspond to the rectangular sliding cavity 110. The number of the columns 500 is consistent with the number of the ball heads 300. The columns 500 are arranged roughly vertically between the rectangular sliding cavity 110 and the corresponding inverted T-shaped step holes 410; the upper end of the column 500 is detachably connected to the ball head 300 through the constriction 211 by means of threaded connection or the like; the lower end of the column 500 is an inverted T-shaped structural end 530 that cooperates with the inverted T-shaped step hole 410 and is arranged in the inverted T-shaped step hole 410. The column 500 and the bottom plate assembly 400 bear horizontal force through the orifice, which improves the stress condition of the damper structure.

[0048] Under normal circumstances, after the ball head 300 is connected to the column 500, there are gaps between its upper and lower parts and the top wall of the rectangular sliding cavity 110 and the constriction 211 respectively. The gap between the upper part of the ball head 300 and the top wall of the rectangular sliding cavity 110 serves as the vertical displacement interval of the bridge, and at this time the column 500 is not subjected to force, which can prevent the column 500 from reducing its service life due to frequent deformation. The gap between the lower part of the ball head 300 and the constriction 211 can meet the vertical height reduction caused by the bending deformation of the column 500. At the same time, since the ball head 300 is a spherical structure, it forms a line contact with the cylindrical hole 210, which can meet the rotation requirements of the bridge.

[0049] The assembled metal damper with tensile resistance in this embodiment is composed of an upper plate assembly 100, a sliding assembly 200, a ball head 300, a bottom plate assembly 400 and a column 500. On the one hand, the lower end of the column 500 cooperates with the bottom plate assembly 400 through an inverted T-shaped structural end 530 and an inverted T-shaped step hole 410, so that the bottom plate assembly 400 and the column 500 are fixed as one, which can avoid structural deformation and welding stress concentration caused by welding, reduce the production and manufacturing costs such as shape correction and stress relief annealing, and ensure the stress of the damper structure. On the other hand, the upper end of the column 500 is connected to the ball head 300 in the sliding assembly 200, and the lower end of the column 500 is connected to the bottom plate assembly 400, which meets the horizontal and vertical free sliding requirements of the bridge under normal circumstances and the vertical tensile resistance function, and when the vertical displacement of the bridge exceeds the gap between the ball head 300 and the top wall of the rectangular sliding cavity 110 under earthquake conditions, the earthquake energy can be dissipated through the bending deformation of the column.

[0050] In this embodiment, the upper plate assembly 100 includes an upper plate body 130. The upper plate body 130 has at least one rectangular through slot 131. The rectangular through slot 131 has end limit plates 140 at both ends in the slot length direction. The end limit plates 140 are connected to the upper plate body 130 by bolts to block the rectangular through slot 131 to prevent the sliding assembly 200 from falling out. There are pressure plates 150 on both sides of the rectangular through slot 131 along the slot length direction. The pressure plate 150 is connected to the upper plate body 130 by bolts, and the pressure plate 150 covers part of the edge area of ​​the rectangular through slot 131. Therefore, the enclosed area of ​​the upper plate body 130, the two end limit plates 140 and the two pressure plates 150 constitutes a rectangular sliding cavity 110; the gap between the two pressure plates 150 constitutes a notch 120. As shown in the attached Figure 2 As shown in , the upper plate body 130 has three rectangular through slots 131. Two adjacent rectangular through slots 131 share a pressing plate 150. In this embodiment, the upper plate assembly 100 adopts an assembled assembly structure with high assembly precision, which is convenient for the installation, maintenance and replacement of the sliding assembly 200, the ball head 300 and the column 500, and can avoid structural deformation and welding stress concentration caused by welding, thereby reducing the production and manufacturing costs such as shape correction and stress relief annealing.

[0051] In this embodiment, buffer pads 141 are provided on the two side walls of the rectangular sliding cavity 110 in the length direction, that is, on the side of the end stopper plate 140 facing the rectangular through slot 131. The buffer pads 141 in this embodiment can buffer the earthquake impact force and provide a certain protection for the bridge structure.

[0052] In this embodiment, the sliding assembly 200 includes a sliding block 230 and a tensile block 220. The sliding block 230 is roughly in the shape of a rectangular parallelepiped; the tensile block 220 is roughly in the shape of a rectangular plate, and its length and width dimensions are consistent with the length and width dimensions of the sliding block 230. The tensile block 220 is installed on the bottom surface of the sliding block 230 by countersunk bolts. The cylindrical hole 210 is opened along the height direction of the combined structure of the sliding block 230 and the tensile block 220, and the constriction 211 is located on the tensile block 220. In this embodiment, the sliding assembly 200 also adopts an assembled assembly structure with high assembly accuracy, which reduces the production and manufacturing costs and processing difficulty such as shape correction and stress relief annealing.

[0053] In this embodiment, the base plate assembly 400 includes a base plate body 420 and a pressing plate 430 . Figure 3 The bottom plate body 420 is provided with an inverted T-shaped step hole 410, the edge area of ​​which is connected to the corresponding pier through an anchor assembly 600. Figure 3 As shown in , nine inverted T-shaped step holes 410 are provided in a rectangular array on the base plate body 420, which can be used to fix nine columns 500; three columns 500 in the same row or column form a group, and the three groups of columns 500 correspond to three rectangular sliding cavities 110 respectively; the upper ends of the three columns 500 in the same group are respectively connected to the ball heads 300 in the three cylindrical holes 210 in the corresponding sliding assembly 200. The clamping plate 430 is located on the lower surface of the base plate body 420 (i.e., the side facing the pier), and is connected to the base plate body 420 as a whole through countersunk bolts. In this embodiment, the clamping plate 430 can simultaneously seal the lower ends of all the columns 500 in the inverted T-shaped step holes 410, and can withstand the local pressure caused by the horizontal force at the bottom of the column 500, thereby preventing the local pressure from directly acting on the pier concrete and causing concrete damage.

[0054] Figure 4 It is a front view of the column in this embodiment. Figure 5 FIG. 2 is a top view of the column in this embodiment. Figure 4 and attached Figure 5As shown in the figure, the upper end of the column 500 is a cylindrical portion 510. The outer wall of the cylindrical portion 510 is provided with an external thread. A threaded hole is provided on the ball head 300 along its radial direction. The cylindrical portion 510 is fitted in the threaded hole so that the ball head 300 and the column 500 are connected as a whole. The middle body portion 520 of the column 500 is conical. Under normal circumstances, the outer wall of the middle body portion 520 does not contact the side wall of the notch 120. In this embodiment, the column 500 is more convenient to install, improves the tensile resistance, and is conducive to the bending and deformation of the column 500 during an earthquake to dissipate seismic energy.

Claims

1. An assembled metal damper with tensile resistance, characterized in that: include: An upper plate assembly, wherein the upper plate assembly has a rectangular sliding cavity therein; a notch is provided in the middle of the bottom surface of the rectangular sliding cavity along its own length direction; A rectangular sliding component is arranged in the rectangular sliding cavity, can slide along the length direction of the rectangular sliding cavity, and cannot escape from the notch; the sliding component is provided with a cylindrical hole along its height direction; the aperture of the lower end portion of the cylindrical hole gradually shrinks to form a shrinkage; A ball head, the diameter of which is consistent with the inner diameter of the cylindrical hole; the ball head is located in the cylindrical hole and cannot escape from the shrinkage; A bottom plate assembly, the bottom plate assembly is located below the upper plate assembly and has an inverted T-shaped step hole; The number of the inverted T-shaped step holes is consistent with the number of the cylindrical holes, and their positions correspond to the rectangular sliding cavity; A column, wherein the lower end of the column is an inverted T-shaped structural end that matches the inverted T-shaped step hole; the column is vertically arranged between the rectangular sliding cavity and the corresponding inverted T-shaped step hole; the inverted T-shaped structural end is located in the inverted T-shaped step hole; the upper end of the column passes through the notch and the constriction, and is detachably connected to the ball head; Wherein, under normal circumstances, after the ball head is connected to the column, there are gaps between the lower and upper parts thereof and the top wall of the rectangular sliding cavity and the necking, respectively.

2. The assembled metal damper with tensile resistance according to claim 1 is characterized in that: The upper plate assembly comprises: The upper plate body has a rectangular through slot; End stop plates, which are located at both ends of the rectangular through slot in the length direction and are detachably connected to the upper plate body; A pressing plate, which is arranged on both sides of the rectangular through slot along the length direction of the rectangular through slot, covers the edge area of ​​the slot, and is detachably connected to the upper plate body; Among them, the enclosed area between the upper plate body, the end stop plate and the pressure plate constitutes the rectangular sliding cavity; the gap between the pressure plates on both sides of the rectangular through groove constitutes the notch.

3. The assembled metal damper with anti-tensile function according to claim 2 is characterized in that: A buffer pad is arranged on one side of the end stop plate facing the rectangular through slot.

4. The assembled metal damper with tensile function according to any one of claims 1 to 3, characterized in that: The sliding assembly comprises: A rectangular sliding block; A rectangular plate-shaped tensile block, the tensile block is located on the bottom surface of the sliding block and is detachably connected to the sliding block; Wherein, the cylindrical hole is opened on the combined structure of the sliding block and the tensile block, and the necking is located on the tensile block.

5. The assembled metal damper with tensile function according to any one of claims 1 to 3, characterized in that: The base plate assembly comprises: A bottom plate body, wherein the bottom plate body is provided with the inverted T-shaped step hole; A clamping plate is located on the lower surface of the base plate body, closes all of the inverted T-shaped step holes, and is detachably connected to the base plate body.

6. The assembled metal damper with tensile resistance according to any one of claims 1 to 3, characterized in that: The upper end of the column is a cylindrical portion; the cylindrical portion is threadedly connected to a threaded hole radially opened on the ball head.

7. The assembled metal damper with tensile resistance according to claim 6, characterized in that: The middle main body of the column is conical.

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