Anti-beam-falling stop block with reciprocating damping performance

Abstract

The utility model discloses an anti-falling beam stopper with reciprocating damping performance, which relates to the technical field of bridge engineering and comprises a lower plate, an upper plate, damping steel plates and side plates, the tops of the damping steel plates are fixedly connected to the bottom of the upper plate, and the bottoms of the damping steel plates are slidably connected to the top of the lower plate. One side of the upper plate is slidably connected to one side of the side plate; according to the utility model, the side plates are fixed on the bridge body of the bridge through the bridge body side anchor bolts, the lower plate is fixed on the bridge pier through the pier top anchor bolts, after the upper plate and the side plates are connected together, the bridge pier and the bridge body are integrated, and when the bridge vibrates back and forth in the horizontal direction during an earthquake and the generated displacement exceeds a design value, the damping steel plate generates elasticoplastic deformation, so that the bridge body is protected. Meanwhile, energy generated by earthquakes is consumed, the bridge swing amplitude is reduced, the bridge anti-seismic grade is improved, and the bridge falling risk is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a beam-falling prevention block with reciprocating damping performance. Background Art

[0002] Earthquakes are natural disasters that can cause significant damage to bridges. The most serious type of bridge damage is beam collapse, a common occurrence caused by excessive displacement of the bridge superstructure. Therefore, it is necessary to improve the seismic safety of bridge structures in extreme earthquakes.

[0003] In the prior art, a steel stranded cable-type limiter consisting of a cable, support plate, anchor sleeve, and fastening nut is generally used to prevent beams from falling. However, this device has poor buffering and energy absorption effects and cannot effectively reduce shaking during earthquakes, resulting in poor beam-fall prevention under the impact of earthquakes. To address this issue, the present utility model provides a beam-fall prevention block with reciprocating damping performance. Utility Model Content

[0004] The technical problem solved by the present invention is that the existing anti-falling beam device has poor buffering and energy absorption effects and cannot effectively reduce the shaking during an earthquake, resulting in a poor anti-falling beam effect under the impact of an earthquake.

[0005] The utility model can be implemented through the following technical solutions: a beam-falling prevention block with reciprocating damping performance, comprising a lower plate, an upper plate, a damping steel plate and a side plate, the tops of multiple damping steel plates being fixedly connected to the bottom of the upper plate, the bottoms of multiple damping steel plates being slidably connected to the top of the lower plate, and one side of the upper plate being slidably connected to one side of the side plate.

[0006] A further technical improvement of the present invention is that a sliding groove is provided on one side of the side plate, a sliding block is fixedly connected to one side of the upper plate, and the sliding block is slidably connected in the sliding groove.

[0007] A further technical improvement of the present invention is that: the side plate is symmetrically fixed with two tensile plates on one side where the sliding groove is provided, and one side of the upper plate is slidably provided in the gap between the two tensile plates.

[0008] A further technical improvement of the present invention is that a stainless steel dust cover is fixedly connected to the surface of the damping steel plate and the upper plate, and the stainless steel dust cover moves together with the upper plate.

[0009] A further technical improvement of the present invention is that the inner wall of the chute is fixedly connected to mirror-finished stainless steel.

[0010] A further technical improvement of the present invention is that a wear-reducing layer is provided on the surface of the slider.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, the side plates are fixed to the beam body of the bridge by anchor bolts on the side of the beam body, and the lower plates are fixed to the piers by anchor bolts on the top of the piers. When the upper plate and the side plates are connected together, the piers and the beam body are integrated. When the bridge vibrates back and forth in the horizontal direction during an earthquake and the displacement generated exceeds the design value, the damping steel plate undergoes elastic-plastic deformation, while consuming the energy generated by the earthquake, reducing the swing amplitude of the bridge, improving the seismic resistance of the bridge, and avoiding the risk of the bridge beam falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 This is a structural schematic diagram of the utility model after being installed on a bridge.

[0018] In the figure: 1. Side plate; 2. Upper plate; 3. Damping steel plate; 4. Lower plate; 5. Tensile plate; 6. Tensile bolts; 7. Anchor rod; 8. Beam side anchor bolt; 9. Slider; 10. Pier top anchor bolt; 11. Stainless steel dust cover. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] See also Figures 1-4As shown, a beam-falling prevention block with reciprocating damping performance comprises a lower plate 4, an upper plate 2, a damping steel plate 3 and a side plate 1, the tops of multiple damping steel plates 3 are fixed to the bottom of the upper plate 2, the damping steel plates 3 are fixed to the bottom of the upper plate 2 by anchor rods 7, the bottoms of multiple damping steel plates 3 are slidably connected to the top of the lower plate 4, and one side of the upper plate 2 is slidably connected to one side of the side plate 1; the side plate 1 is fixed to the beam body of the bridge by beam side anchor bolts 8, and the lower plate 4 is fixed to the pier by pier top anchor bolts 10. When the upper plate 2 is connected to the side plate 1, the pier and the beam body are integrated. When the bridge vibrates back and forth in the horizontal direction during an earthquake and the resulting displacement exceeds the design value, the damping steel plate 3 undergoes elastic-plastic deformation, while consuming the energy generated by the earthquake, reducing the swing amplitude of the bridge, improving the seismic resistance of the bridge, and avoiding the risk of beam falling from the bridge.

[0021] In the above, the connection structure between the side panel 1 and the upper panel 2 is as follows: a slide groove is provided on one side of the side panel 1, and a slider 9 is fixedly connected to one side of the upper panel 2, and the slider 9 is slidably connected in the slide groove; at the same time, in order to facilitate the sliding of the slider 9 in the slide groove, the inner wall of the slide groove is fixedly connected to mirror stainless steel, and the surface of the slider 9 is provided with a wear-reducing layer, which is made of SF-1 skateboard material; the mirror stainless steel and the wear-reducing layer constitute a sliding pair, which can ensure that the block as a whole can adapt to the displacement of the bridge in the longitudinal direction of the bridge.

[0022] In addition, the connection between the upper plate 2 and the side plate 1 can also be in the form of a pin or a ball joint to meet the requirements of the freedom of the bridge in all directions.

[0023] Furthermore, in order to increase the strength of the connection between the side panel 1 and the upper panel 2, two tensile plates 5 are symmetrically fixed to the side of the side panel 1 where the slide groove is provided. The tensile plates 5 are fixed to the surface of the side panel 1 by tensile bolts 6, and one side of the upper panel 2 is slidably set in the gap between the two tensile plates 5.

[0024] In this application, a stainless steel dust cover 11 is fixed to the surface of the damping steel plate 3 and the upper plate 2, and the stainless steel dust cover 11 moves with the upper plate 2 to protect the damping steel plate 3 and the upper plate 2 and reduce the corrosion of the damping steel plate 3 and the upper plate 2.

[0025] The block of the present application can generate a limiting force when the bridge moves back and forth, and can be respectively set at both ends of the bridge and used in combination.

[0026] When the present invention is in use, the side plate 1 is fixed to the beam body of the bridge through the beam side anchor bolts 8, and the lower plate 4 is fixed to the pier through the pier top anchor bolts 10. When the upper plate 2 is connected to the side plate 1, the pier and the beam body are integrated. When the bridge vibrates back and forth horizontally during an earthquake and the resulting displacement exceeds the design value, the damping steel plate 3 undergoes elastic-plastic deformation, while consuming the energy generated by the earthquake, reducing the swing amplitude of the bridge, improving the seismic resistance of the bridge, and avoiding the risk of the bridge beam falling.

[0027] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, as well as a specific direction structure and operation. Therefore, it cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A beam-falling prevention block with reciprocating damping performance, characterized in that: The invention comprises a lower plate (4), an upper plate (2), a damping steel plate (3) and a side plate (1), wherein the tops of the plurality of damping steel plates (3) are fixedly connected to the bottom of the upper plate (2), the bottoms of the plurality of damping steel plates (3) are slidably connected to the top of the lower plate (4), and one side of the upper plate (2) is slidably connected to one side of the side plate (1).

2. The anti-falling beam stopper with reciprocating damping performance according to claim 1, characterized in that: A sliding groove is provided on one side of the side plate (1), and a sliding block (9) is fixedly connected to one side of the upper plate (2), and the sliding block (9) is slidably connected in the sliding groove.

3. The anti-falling beam stopper with reciprocating damping performance according to claim 2, characterized in that: The side plate (1) is symmetrically fixed with two tensile plates (5) on one side provided with a sliding groove, and one side of the upper plate (2) is slidably arranged in the gap between the two tensile plates (5).

4. The anti-falling beam stopper with reciprocating damping performance according to claim 1, characterized in that: A stainless steel dust cover (11) is fixedly connected to the surface of the damping steel plate (3) and the upper plate (2), and the stainless steel dust cover (11) moves together with the upper plate (2).

5. The anti-falling beam stopper with reciprocating damping performance according to claim 2, characterized in that: The inner wall of the chute is fixedly connected with mirror-finished stainless steel.

6. The anti-falling beam stopper with reciprocating damping performance according to claim 2, characterized in that: The surface of the slider (9) is provided with a friction-reducing layer.

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