Novel self-balancing two-way energy dissipation anti-beam-falling device with replaceable energy dissipation assembly

Abstract

The utility model relates to a novel self-balancing two-way energy dissipation anti-beam-falling device with a replaceable energy dissipation assembly. Specifically, the device is composed of a pier top force transmission assembly, a beam bottom force transmission assembly, a rotatable balance assembly with a protruding block on the lower portion, a steel supporting pad, a cylindrical soft base body mixed cellular material energy dissipation block, a high-strength bolt, a rotating clamping ring, a stiffening rib steel plate and a center rotating shaft. When an earthquake occurs, the beam bottom force transmission assembly makes contact with the bottom of the rotatable balance assembly with the protruding block on the lower portion, so that the cylindrical soft base body mixed cellular material energy dissipation block is compressed to dissipate energy; the rotatable balance assembly with a protruding block on the lower portion rotates around the center rotating shaft, and the top and the bottom jointly make contact with the beam bottom force transmission assembly to limit displacement of the beam body. The device is connected through high-strength bolts, machining and mounting are easy and convenient, the bidirectional energy dissipation effect is achieved, and good application prospects are achieved in the bridge anti-seismic field.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel self-balancing bidirectional energy dissipation anti-falling beam device with replaceable energy dissipation components, and particularly relates to a self-balancing bidirectional energy dissipation anti-falling beam device with a lower part rotatable balance component with a protruding block and a cylindrical soft base mixed cell hole material energy dissipation block arranged in a pier top force transmission component and a beam bottom force transmission component. The pier top force transmission component of the self-balancing bidirectional energy dissipation anti-falling beam device is connected with the pier top by high-strength bolts, the beam bottom force transmission component is connected with the beam bottom plate by high-strength bolts, and the lower part rotatable balance component with a protruding block is arranged on the pier top force transmission component, and a steel support pad and a cylindrical soft base mixed cell hole material energy dissipation block are arranged on the lower inner side of the pier top force transmission component. Under the action of an earthquake, when the beam bottom force transmission component contacts the lower part rotatable balance component with a protruding block, the cylindrical soft base mixed cell hole material energy dissipation block is compressed, and at the same time, the lower part rotatable balance component with a protruding block rotates around the central rotating shaft to dissipate seismic energy. The size of the lower part rotatable balance component with a protruding block and the mechanical parameters of the cylindrical soft base mixed cell hole material energy dissipation block can be flexibly adjusted according to design requirements, and the utility model has the advantages of simple installation process, easy replacement after an earthquake, and wide application prospects in the field of bridge seismic resistance. BACKGROUND

[0002] With the development of high-speed railways in China, the proportion of bridges in the high-speed railway network is increasing year by year. However, once a bridge project is damaged in an earthquake, not only will the traffic network be interrupted, but also huge economic losses will be caused. Steel block is mainly used in railway bridges to limit the displacement of the bridge and prevent the falling beam from causing damage. However, the steel block does not have energy dissipation capacity, and is mainly sheared in an earthquake, and the anti-falling beam capacity is limited as can be seen from the earthquake damage. Therefore, it is necessary to develop a novel self-balancing bidirectional energy dissipation anti-falling beam device with replaceable energy dissipation components.

[0003] The soft base mixed cell hole material used in the self-balancing bidirectional energy dissipation anti-falling beam device has excellent energy absorption performance and good recoverability, and has stable multiple impact resistance. SUMMARY

[0004] The utility model relates to a novel self -balancing bidirectional energy dissipation anti -falling beam device with replaceable energy dissipation component mainly by pier top force transmission component, beam bottom force transmission component, lower part rotatable balance component with protruding block and cylindrical soft matrix mixed cell hole material energy dissipation block etc.

[0005] a. according to bridge design demand, determine the size of pier top force transmission component, beam bottom force transmission component, lower part rotatable balance component with protruding block, cylindrical soft matrix mixed cell hole material energy dissipation block, steel support pad, rotating snap ring and high -strength bolt etc.

[0006] b. the steel support pad is placed in the lower part inner side of pier top force transmission component, and the cylindrical soft matrix mixed cell hole material energy dissipation block is placed on the steel support pad;

[0007] c. then respectively in the recess inner side rotating snap ring of the four around vertical steel plate top middle position of pier top force transmission component arrangement one lower part rotatable balance component with protruding block, and make lower part rotatable balance component with protruding block bottom and cylindrical soft matrix mixed cell hole material energy dissipation block keep contact;

[0008] d. when installing, beam bottom force transmission component is inlaid in pier top force transmission component, and with lower part rotatable balance component with protruding block reserved gap, for the normal displacement of beam body uses.

[0009] The utility model has the advantages of the following technical schemes.

[0010] 1、 the utility model discloses pier top force transmission component, beam bottom force transmission component, lower part rotatable balance component with protruding block and cylindrical soft matrix mixed cell hole material energy dissipation block mutually cooperate, easy to combine, convenient to replace, be suitable for bridge seismic field use.

[0011] 2、 the utility model lower part rotatable balance component with protruding block and the size of the gap of beam bottom force transmission component are flexibly adjusted according to the displacement demand of beam body.

[0012] 3. The utility model discloses a rotatable balance assembly with protruding blocks at the lower part, which has the function of bidirectional energy dissipation and does not affect the normal use of the bridge. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of a self-balancing bidirectional energy dissipation anti-beam-falling device.

[0014] Figure 2 is a side view of a self-balancing bidirectional energy dissipation anti-beam-falling device.

[0015] Figure 3 is a front view of a self-balancing bidirectional energy dissipation anti-beam-falling device.

[0016] Figure 4 is a sectional view of a self-balancing bidirectional energy dissipation anti-beam-falling device.

[0017] Figure 5 is a schematic diagram of a self-balancing bidirectional energy dissipation anti-beam-falling device with replaceable energy dissipation components.

[0018] Figure 6 is a sectional schematic diagram of a self-balancing bidirectional energy dissipation anti-beam-falling device in an initial state.

[0019] Figure 7 is a sectional schematic diagram of a self-balancing bidirectional energy dissipation anti-beam-falling device, in which the bottom of the rotatable balance assembly with protruding blocks at the lower part is in contact with the beam bottom force transmission assembly.

[0020] Figure 8 is a sectional schematic diagram of a self-balancing bidirectional energy dissipation anti-beam-falling device, in which the top and bottom of the rotatable balance assembly with protruding blocks at the lower part are both in contact with the beam bottom force transmission assembly for limiting.

[0021] REFERENCE NUMERALS

[0022] (1) Pier top force transmission assembly, (2) beam bottom force transmission assembly, (3) rotatable balance assembly with protruding blocks at the lower part, (4) steel support pad, (5) cylindrical soft matrix mixed cellular material energy dissipation block, (6) high-strength bolt, (7) rotating snap ring, (8) stiffened rib steel plate, (9) central rotating shaft, (10) pier top, (11) beam bottom plate. DETAILED DESCRIPTION

[0023] The utility model will be further described below in conjunction with the drawings, and the examples are shown in the drawings and the following description.

[0024] As Figure 1As shown in the utility model mainly by pier top force component (1), beam bottom force component (2), lower part take convex block's rotatable balance component (3) and cylindrical soft matrix mixed cell hole material energy dissipation block (5) etc. component composition. In the four around vertical steel sheet top middle position of pier top force component (1) reserve a recess, recess sets up rotating snap ring (7), steel support pad (4) is placed in the lower part inner side of pier top force component (1), cylindrical soft matrix mixed cell hole material energy dissipation block (5) is placed on steel support pad (4), the center rotating shaft (9) on lower part take convex block's rotatable balance component (3) is placed in the clamping groove of rotating snap ring (7), ensure that the bottom of lower part take convex block's rotatable balance component (3) can contact with cylindrical soft matrix mixed cell hole material energy dissipation block (5), beam bottom force component (2) is embedded in pier top force component (1), and with lower part take convex block's rotatable balance component (3) reserved gap. Finally, respectively using high-strength bolt (6) pier top force component (1) is connected in pier top (10), beam bottom force component (2) is connected in beam bottom plate (11), make it become force whole, such as Figure 5 .

[0025] As Figure 7 、 8 shown, under the action of earthquake, when the bottom of beam bottom force component (2) and the bottom of lower part take convex block's rotatable balance component (3) contact, cylindrical soft matrix mixed cell hole material energy dissipation block (5) generates compression, dissipates seismic energy, in addition, lower part take convex block's rotatable balance component (3) rotates around center rotating shaft (9), so that the top of lower part take convex block's rotatable balance component (3) and the bottom contact beam bottom force component (2), limit the displacement of beam body, thereby protecting the overall structure of bridge.

[0026] The utility model connection mode all adopts high-strength bolt (6) connection, and processing installation is simple, and has bidirectional energy dissipation effect, and has good application prospect in the field of bridge seismic resistance.

Claims

1. A new type of self-balancing bidirectional energy dissipation anti-falling beam device with replaceable energy dissipation components, which is composed of a pier top force transmission component (1), a beam bottom force transmission component (2), a lower rotatable balance component (3) with protruding blocks, and a cylindrical soft matrix hybrid cellular material energy dissipation block (5), characterized in that The middle position of the vertical steel plate around the top of the force assembly (1) is reserved with a groove, the both sides of the groove are provided with a rotating snap ring (7), the steel supporting pad (4) is placed in the lower inner side of the top of the force assembly (1), the cylindrical soft base mixed cell material energy dissipation block (5) is placed on the steel supporting pad (4), the center rotating shaft (9) on the lower part of the rotating balance assembly (3) with a protruding block is placed in the clamping groove of the rotating snap ring (7), which ensures that the bottom of the lower part of the rotating balance assembly (3) with a protruding block can contact with the cylindrical soft base mixed cell material energy dissipation block (5), forming a new type of self-balancing bidirectional energy dissipation anti-falling beam device with replaceable energy dissipation assembly.

2. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The lower part of the rotating balance assembly (3) with a protruding block is arranged on the rotating snap ring in the groove of the vertical steel plate around the top of the force assembly (1), and the rotating balance assembly (3) with a protruding block rotates around the center rotating shaft (9).

3. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The rotating balance assembly (3) with a protruding block in the lower part has a gap with the beam bottom force assembly (2).

4. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The force assembly (1) at the top of the pier is locally reinforced by a stiffened rib steel plate (8).

5. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The force assembly (1) at the top of the pier is connected with the top of the pier (10) through high-strength bolts (6), and the force assembly (2) at the bottom of the beam is connected with the bottom plate (11) of the beam through high-strength bolts (6).

6. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The cylindrical soft base mixed cell material energy dissipation block (5) is placed on the steel supporting pad (4).

7. The self-balancing bidirectional energy dissipation anti-collapse beam device with replaceable energy dissipation component of claim 1, characterized in that The force assembly (2) at the bottom of the beam is embedded in the force assembly (1) at the top of the pier.

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