Buffering structure for multi-stage earthquake fortification

Abstract

The utility model belongs to the technical field of bridge earthquake resistance, and particularly relates to a buffer structure for multistage earthquake fortification, which comprises a pier column, two symmetrically arranged bearing parts are fixedly connected to the upper surface of the pier column, and a buffer mechanism is arranged between the two bearing parts and a bridge; the multi-level anti-seismic elements such as the first bridge support, the damping rods, the supporting columns and the second bridge support are combined, multi-level anti-seismic protection is provided for a bridge, energy generated by natural disasters such as earthquakes and strong wind can be more effectively absorbed and dispersed, the response amplitude of the bridge structure is remarkably reduced, and the service life of the bridge is prolonged. The arrangement of the positioning piece provides an additional physical blocking effect, so that the bridge is effectively prevented from inclining or deviating under the action of strong wind, earthquakes and the like, and the overall rigidity and stability of the bridge are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of bridge seismic resistance technology, and in particular to a multi-level seismic fortification buffer structure. Background Technology

[0002] In recent years, earthquakes have occurred frequently, and the direct losses caused by bridge collapses and the indirect losses caused by the resulting traffic paralysis are very large. Among various seismic design methods for railway bridges, seismic isolation and reduction design has been proven by engineering practice to be the most economical and effective method.

[0003] Currently, most existing technologies involve installing shock-absorbing bearings between the upper and lower structures to purposefully guide the damage patterns of the structure and improve the overall seismic performance. However, in practical use, a single bridge bearing is insufficient to provide better protection for the bridge, reduce the response amplitude of the bridge structure, achieve multi-layered seismic protection, and improve the overall rigidity and stability of the bridge.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-level seismic fortification buffer structure. By setting up a buffer mechanism, it provides multi-level seismic protection for bridges, reduces the response amplitude of the bridge structure, and provides additional physical blocking effect, effectively preventing the bridge from tilting or shifting under the action of strong winds, earthquakes, etc., and enhancing the overall rigidity and stability of the bridge, thereby solving the problems raised in the background art.

[0006] The purpose of this utility model can be achieved through the following technical solution: a multi-level seismic fortification buffer structure, including a pier column, wherein two symmetrically arranged bearing parts are fixedly connected to the upper surface of the pier column, and a buffer mechanism is provided between the two bearing parts and the bridge.

[0007] The buffer mechanism includes a bridge bearing 1 located on the upper surface of the bearing part and abutting against the bridge. Damping rods are provided on both sides of the pier along the bridge laying direction. Connecting plate 1 and connecting plate 2 are vertically and movably connected to both ends of the damping rods. An installation groove is opened in the center of the pier. A base is installed in the installation groove of the pier. A support column is fixedly installed on the upper surface of the base. A bridge bearing 2 is provided on the support column. A prefabricated component is fixedly connected to the top of the bridge bearing 2. Positioning components connected to the bridge are provided on the opposite sides of the two bearing parts.

[0008] Preferably, both ends of the damping rod are provided with movable connectors, and the first connecting piece and the second connecting piece are movably connected to the damping rod in the vertical direction by a pin.

[0009] Preferably, one surface of the connecting piece is welded with a connecting piece one, and the upper surface of the connecting piece two is detachably connected with a connecting piece two, the connecting piece two is fixedly connected with the lower surface of the bridge, and the surfaces of the connecting piece one and the connecting piece two are provided with reinforcing ribs.

[0010] Preferably, the positioning piece is provided in an L shape, one end of the positioning piece close to the bearing part is fixedly connected with a connecting seat one, and the other end of the positioning piece away from the bearing part is fixedly connected with a connecting seat two.

[0011] Preferably, the outer wall of the bearing part is sleeved with a connecting frame, the connecting seat one is fixedly connected with the outer wall connecting frame of the bearing part, and the connecting seat two is fixedly connected with the embedded part of the lower surface of the bridge.

[0012] Preferably, the outer wall of the supporting column is fixedly connected with four connecting pieces three in an annular array, the connecting pieces three are vertically movably connected with a connecting strip through a pin shaft, the connecting strip is in a T shape, the top end of the connecting strip is fixedly connected with the lower surface of the bridge, and the lower surface of the bridge is embedded with a connecting block fixedly connected with the top end of the connecting strip.

[0013] The utility model discloses the beneficial effect:

[0014] (1) the utility model discloses a combination bridge bearing one, damping rod, supporting column and bridge bearing two etc. Multistage anti-seismic element provides multilevel anti-seismic protection for bridge, can more effectively absorb and disperse the energy produced by earthquake, strong wind and other natural disasters, significantly reduces the response amplitude of bridge structure, and the setting of positioning piece provides additional physical blocking effect, effectively prevents bridge from inclining or deviating under the action of strong wind, earthquake and the like, and enhances the overall rigidity and stability of bridge.

[0015] (2) the utility model discloses still through setting up the four connecting pieces three of the annular array of the outer wall of the supporting column and the movable connection of them and the connecting strip, allow bridge to deform and move within a certain range, can absorb and disperse the energy produced when earthquake, thereby alleviating the impact on the main structure of bridge, and enhancing the anti-seismic capacity. ACCURACY OF DRAWINGS

[0016] The utility model makes further explanation in combination with the drawings.

[0017] Figure 1 It is the overall structure perspective drawing of the utility model.

[0018] Figure 2 It is the side view structure schematic diagram of the utility model.

[0019] Figure 3 It is the buffer mechanism structure schematic diagram of the utility model.

[0020] Figure 4 It is the positioning piece structure schematic diagram of the utility model.

[0021] Figure 5 Figure is a support column structure schematic diagram of the utility model.

[0022] Legend: 1, pier column; 2, bearing part; 3, bridge bearing one; 4, damping rod; 5, connecting piece one; 6, support column; 7, positioning piece; 8, connecting piece one; 9, connecting seat one; 10, connecting piece two; 11, connecting piece two; 12, base; 13, connecting piece three; 14, connecting strip; 15, prefabricated part; 16, connecting seat two. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment one: the embodiment is used to solve the problem that single bridge bearing is difficult to better protect the bridge, difficult to reduce the response amplitude of bridge structure, difficult to realize multilevel seismic protection of the bridge, improve the overall rigidity and stability of the bridge.

[0025] Please refer to Figures 1-5 The embodiment is a multistage anti-seismic buffering structure, which comprises a pier column 1, two symmetrical bearing parts 2 are fixedly connected to the upper surface of the pier column 1, and a buffering mechanism is arranged between the two bearing parts 2 and a bridge;

[0026] The buffering mechanism comprises a bridge bearing one 3 located on the upper surface of the bearing part 2 and abutting against the bridge, the bridge bearing one 3 is a pot-type rubber bearing, which is composed of upper and lower connecting plates and a rubber layer in the middle, has great horizontal displacement capacity and rotation capacity, damping rods 4 are arranged on both sides of the pier column 1 along the laying direction of the bridge, and connecting piece one 8 and connecting piece two 10 are vertically movably connected to both ends of the damping rod 4, when natural disasters such as earthquakes and strong winds occur, the damping rod 4 can absorb part of the energy, reduce the response amplitude of the bridge structure, so as to protect the main structure of the bridge from being damaged or reduce the damage degree, and prolong the service life of the bridge;

[0027] The mounting groove is arranged in the center of the pier column 1, the base 12 is mounted in the mounting groove of the pier column 1, the support column 6 is fixedly mounted on the upper surface of the base 12, the bridge support two is arranged on the support column 6, the bridge support two further guarantees the safety and stability of the bridge, the prefabricated part 15 is fixedly connected to the top end of the bridge support two, the positioning part 7 connected with the bridge is arranged on the opposite side of each bearing part 2, the physical blocking effect is achieved through the positioning part 7, the bridge can be effectively prevented from tilting or deviating under the action of strong wind, earthquake and the like, the application of the damping rod 4 in the bridge structure provides multi-stage protection for the bridge, and the stability and safety of the bridge are enhanced, the stress distribution and structure protection are optimized, and the adaptability and flexibility are improved.

[0028] The movable connecting head is arranged at each end of the damping rod 4, the connecting piece one 8 and the connecting piece two 10 are movably connected with the damping rod 4 in the vertical direction through the pin shaft, and the pin shaft connection mode is adopted, so that the damping rod 4 and the connecting piece one 8 and the connecting piece two 10 are conveniently installed.

[0029] The connecting part one 5 is welded to the surface of the connecting piece one 8, and the connecting part two 11 is detachably connected to the upper surface of the connecting piece two 10, the connecting part two 11 is fixedly connected with the lower surface of the bridge, and the surfaces of the connecting part one 5 and the connecting piece two 10 are provided with the reinforcing ribs, so that the strength and rigidity of the connecting part are effectively improved, the connecting part one 5 is provided, and the two ends of the damping rod 4 are conveniently connected with the bridge and the pier column 1.

[0030] The positioning part 7 is arranged in an L shape, the L shape can provide support in two directions, so that the positioning part 7 can be more stable when subjected to external force and is not easy to deform or damage, the connecting seat one 9 is fixedly connected to one end of the positioning part 7 close to the bearing part 2, and the connecting seat two 16 is fixedly connected to one end of the positioning part 7 away from the bearing part 2, under the action of the positioning part 7, the bridge can be effectively prevented from tilting or deviating under the action of strong wind, earthquake and the like, and the bridge is better protected.

[0031] The connecting frame is sleeved on the outer wall of the bearing part 2, the connecting seat one 9 is fixedly connected with the outer wall connecting frame of the bearing part 2, and the connecting seat two 16 is fixedly connected with the embedded part of the lower surface of the bridge, the connecting frame is arranged, the stable contact between the bearing part 2 and the positioning part 7 is guaranteed, the bearing part 2 is protected, and the overall stability and safety of the bridge are ensured.

[0032] Embodiment two: the embodiment is used to solve the problem of how to further enhance the overall rigidity and stability of the bridge.

[0033] Please refer to Figures 1-5The buffer structure for multistage anti-seismic fortification of the embodiment is shown, four connecting pieces three 13 are fixedly connected in annular array on the outer wall of the support column 6, the connecting pieces three 13 are vertically movably connected with connecting strips 14 through pin shafts, deformation and movement of the bridge within a certain range are allowed by setting the movable connection, energy generated during the earthquake can be absorbed and dispersed, so as to reduce the impact on the main structure of the bridge and enhance the anti-seismic capacity, the connecting strips 14 are T-shaped, the top end of the connecting strips 14 is fixedly connected with the lower surface of the bridge, and the lower surface of the bridge is embedded with a connecting block fixedly connected with the top end of the connecting strips 14.

[0034] It can be known from the combination of embodiment one and embodiment two that the multistage anti-seismic elements such as the bridge support one 3, the damping rod 4, the support column 6 and the bridge support two are set through the buffer mechanism, multilevel anti-seismic protection is provided for the bridge, energy generated by natural disasters such as earthquakes and strong winds can be more effectively absorbed and dispersed, the response amplitude of the bridge structure is significantly reduced, the setting of the positioning piece 7 provides an additional physical blocking effect, effectively prevents the bridge from tilting or deviating under the action of strong wind, earthquake and the like, enhances the overall rigidity and stability of the bridge, the four connecting pieces three 13 in annular array on the outer wall of the support column 6 and the movable connection thereof with the connecting strips 14 allow the bridge to deform and move within a certain range, can absorb and disperse the energy generated during the earthquake, so as to reduce the impact on the main structure of the bridge and enhance the anti-seismic capacity.

[0035] The above content is only an example and description of the structure of the present application, and those skilled in the art can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as they do not deviate from the structure of the invention or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to provide the best illustration of the application and its practical application to those skilled in the art and to enable those skilled in the art to utilize the application in its best mode. The application is only limited by the claims and their full scope and equivalents.

Claims

1. A multi-stage shockproof buffering structure for a pier column (1), characterized in that, Two symmetrical bearing parts (2) are fixedly connected to the upper surface of the pier column (1), and a buffer mechanism is arranged between the two bearing parts (2) and the bridge; The buffer mechanism comprises a bridge support (3) arranged on the upper surface of the bearing part (2) and abutting against the bridge, and a damping rod (4) is arranged on the two sides of the pier column (1) along the laying direction of the bridge, and the two ends of the damping rod (4) are vertically movably connected with a connecting plate (8) and a connecting plate (10); A mounting groove is formed in the center of the pier column (1), a base (12) is mounted in the mounting groove of the pier column (1), a support column (6) is fixedly mounted on the upper surface of the base (12), the support column (6) is provided with a bridge support (2), and a prefabricated part (15) is fixedly connected to the top end of the bridge support (2), and a positioning part (7) connected with the bridge is arranged on the opposite side of each bearing part (2).

2. The multi-stage shock resistance buffering structure according to claim 1, wherein The two ends of the damping rod (4) are provided with movable connecting heads, and the connecting plate (8) and the connecting plate (10) are movably connected with the damping rod (4) in the vertical direction through a pin shaft.

3. The multi-stage shock resistance buffering structure according to claim 1, wherein The connecting plate (8) is welded with a connecting piece (5), the connecting plate (10) is detachably connected with a connecting piece (11) on the upper surface, the connecting piece (11) is fixedly connected with the lower surface of the bridge, and the surfaces of the connecting piece (5) and the connecting plate (10) are provided with reinforcing ribs.

4. The multi-stage shock resistance buffering structure according to claim 1, wherein The positioning part (7) is arranged in an L shape, one end of the positioning part (7) close to the bearing part (2) is fixedly connected with a connecting seat (9), and the other end of the positioning part (7) away from the bearing part (2) is fixedly connected with a connecting seat (16).

5. The multi-stage shock resistance buffering structure according to claim 4, wherein The outer wall of the bearing part (2) is sleeved with a connecting frame, the connecting seat (9) and the outer wall connecting frame of the bearing part (2) are fixedly connected, and the connecting seat (16) and the embedded part on the lower surface of the bridge are fixedly connected.

6. The multi-stage shock resistance buffering structure according to claim 1, wherein The outer wall of the support column (6) is annularly fixedly connected with four connecting plates (13), the connecting plates (13) are movably connected with a connecting strip (14) through a pin shaft, the connecting strip (14) is in a T shape, the top end of the connecting strip (14) is fixedly connected with the lower surface of the bridge, and the lower surface of the bridge is embedded with a connecting block fixedly connected with the top end of the connecting strip (14).

Images