Anti-falling beam transformation device

Abstract

The utility model discloses an anti-falling beam transformation device which comprises an upper connecting steel plate, a lower connecting steel plate, a beam bottom embedded steel plate, a support and an anti-falling beam device, the beam bottom embedded steel plate is transversely embedded in the middle of the beam bottom, the upper connecting steel plate is an L-shaped plate, and the upper connecting steel plate is symmetrically arranged at the edge position of the beam bottom in the transverse bridge direction. The vertical surfaces of the upper connecting steel plates are arranged on the outer sides of the web plates, the transverse surfaces of the upper connecting steel plates are arranged on the lower surface of the bottom plate, the two upper connecting steel plate inner side lines are arranged on the lower surface of the beam bottom embedded steel plate, the lower connecting steel plates are arranged on the top face of the pier, and the symmetric line between the two upper connecting steel plates and the symmetric line of the lower connecting steel plates in the bridge direction are located in the same vertical plane. The supports are evenly arranged between the upper connecting steel plate and the lower connecting steel plate in the transverse bridge direction, and the beam falling prevention device is arranged between the upper connecting steel plate and the lower connecting steel plate. The device is more convenient to install and maintain and wider in applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge field, in particular to a kind of anti-falling beam reconstruction device. BACKGROUND

[0002] In recent years, with the development of speed-up of existing railway line and heavy load of freight transport, the average running speed, transport capacity and traffic volume of railway are greatly improved. At the same time, the reinforced concrete beam on the railway operation line bears greater dynamic load, and the diseases cannot be ignored. The diseases such as anchor bolt shearing disease on support, excessive longitudinal displacement of support, surface dirt and the like are particularly prominent, which affect the service performance of bridge structure and are not conducive to the normal stress of structure. In severe cases, it may lead to the separation of upper and lower structures of bridge, and the falling beam phenomenon occurs, which endangers the operation safety of bridge structure. In view of the diseases found in the operation of the above bridge, the line support with diseases needs to be overhauled and comprehensively treated. At this time, the support main body needs to be replaced, and the same support as the original support form is usually used for replacement. However, under the same conditions, the same support is used, and the same problem is expected to occur. Moreover, the original anchoring member may not be repaired and reused, and the replacement method has a great influence on the safety of bridge structure during the replacement process.

[0003] When the line support is overhauled and comprehensively treated, in order to further improve the safety performance of bridge, the anti-falling beam product is considered to be added, and through the holding of anti-falling beam measures, the falling beam problem under special conditions such as earthquake can be effectively improved. At present, the structure of domestic anti-falling beam device is mainly block type and cable type. Whether it is block type or cable type anti-falling beam structure, the concept of strength design, i.e. "hard collision" is used to solve the problem of anti-falling beam. This type of anti-falling beam has the characteristics of large impact force, large structure weight, large occupied space and high cost, and has the problems of high installation and cost when applied to existing line simple-supported T-beam. SUMMARY

[0004] The utility model discloses in order to solve the problem that the block type and cable type anti-falling beam structure in the prior art are all used to solve the problem of anti-falling beam by the concept of strength design, i.e. "hard collision", and have the problems of large impact force, large structure weight, large occupied space and high cost, provides an anti-falling beam reconstruction device, and solves the above problems.

[0005] The utility model provides a kind of anti-falling beam reconstruction device, including a pair of upper connecting steel plate, lower connecting steel plate, beam bottom embedded steel plate, several supports and a pair of anti-falling beam device, beam bottom embedded steel plate is embedded in the middle part of beam bottom transversely, beam bottom embedded steel plate is provided with the vertical positioning mechanism in the plane position of two web vertical surface inboard, positioning mechanism is at least two direction vertical plate combination, upper connecting steel plate is L type plate, two upper connecting steel plates are symmetrically set in horizontal bridge bottom edge position, upper connecting steel plate vertical surface is set in web outside, upper connecting steel plate horizontal surface is set in bottom plate lower surface, two upper connecting steel plate inner edge line is set in beam bottom embedded steel plate lower surface, lower connecting steel plate is set in bridge pier top surface, the symmetry line between two upper connecting steel plates and the symmetry line of lower connecting steel plate along bridge is located in the same vertical plane, support is evenly arranged between upper connecting steel plate and lower connecting steel plate along horizontal bridge, anti-falling beam device is set between upper connecting steel plate and lower connecting steel plate, two anti-falling beam devices are set in upper connecting plate inner edge line position, upper connecting steel plate vertical projection is set in lower connecting steel plate vertical projection range, and support and anti-falling beam device connected with same lower connecting steel plate are symmetrical along same horizontal bridge surface.

[0006] The anti-falling beam reconstruction device has an integrated structure of the lower connecting steel plate.

[0007] The anti-falling beam reconstruction device has a split structure of the lower connecting steel plate.

[0008] The anti-falling beam reconstruction device has an inner surface of the upper connecting steel plate coated with steel adhesive, a vertical surface of the upper connecting steel plate connected to a side end of a beam by using a chemical anchor bolt, and a horizontal surface of the upper connecting steel plate connected by a pre-embedded sleeve bolt passing through the beam bottom embedded steel plate.

[0009] The anti-falling beam reconstruction device has a U-shaped steel anti-falling beam device.

[0010] The anti-falling beam reconstruction device has the following beneficial effects:

[0011] (1) The device has stable performance, high durability, and convenient maintenance and replacement of supports to meet the overall needs of new bridges and the increasing reinforcement and maintenance needs of old bridges, thereby ensuring the safety of bridge structures.

[0012] (2) The device is provided with upper and lower connecting steel plates, and does not need to consider avoiding original supports and lower anchoring elements, so that the design and replacement of the supports are more convenient.

[0013] (3) The device not only replaces the supports, but also adds an anti-falling beam function based on the original support function to avoid excessive structural displacement and falling beam danger.

[0014] (4) The U-shaped steel anti-fall beam device adopts the design concept of "using softness to overcome hardness". It has generated a damping effect before entering the falling beam state, which can greatly reduce the impact and make the anti-fall beam function safer and more reliable.

[0015] (5) This device is easier to install and maintain, and has a wider range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment 1 of a beam-prevention modification device;

[0017] Figure 2 This is a schematic diagram of an embodiment 2 of a beam-prevention modification device.

[0018] Figure label:

[0019] 1. Upper connecting steel plate; 2. Lower connecting steel plate; 3. Steel plate embedded in the bottom of the beam; 4. Support; 5. Anti-falling beam device. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0021] like Figure 1 As shown, an anti-falling beam modification device includes a pair of upper connecting steel plates 1, a lower connecting steel plate 2, a beam bottom embedded steel plate 3, several supports 4, and a pair of anti-falling beam devices 5. The beam bottom embedded steel plate 3 is horizontally embedded in the middle of the beam bottom. The beam bottom embedded steel plate 3 has a vertical positioning mechanism set at the plane where the inner side of the vertical plane of the two web plates is located. The positioning mechanism is a combination of at least two vertical plates. The upper connecting steel plate 1 is an L-shaped plate. The two upper connecting steel plates 1 are symmetrically arranged at the edge of the beam bottom in the transverse direction. The vertical surface of the upper connecting steel plate 1 is located on the outer side of the web plate, and the transverse surface of the upper connecting steel plate 1 is located on the lower surface of the bottom plate. The edge line is set on the lower surface of the pre-embedded steel plate 3 at the bottom of the beam, and the lower connecting steel plate 2 is set on the top surface of the pier. The symmetry line between the two upper connecting steel plates 1 and the symmetry line of the lower connecting steel plate 2 along the bridge direction are located in the same vertical plane. Supports 4 are evenly arranged in the transverse direction between the upper connecting steel plate 1 and the lower connecting steel plate 2. The anti-falling beam device 5 is set between the upper connecting steel plate 1 and the lower connecting steel plate 2. Both anti-falling beam devices 5 are set at the inner edge line position of the upper connecting plate. The vertical projection of the upper connecting steel plate 1 is set within the vertical projection range of the lower connecting steel plate 2. The support 4 and the anti-falling beam device 5 connected by the same lower connecting steel plate 2 are symmetrical along the same transverse direction.

[0022] The lower connecting steel plate 2 is an integral structure.

[0023] The inner surface of the upper connecting steel plate 1 is coated with steel bonding glue, the vertical surface of the upper connecting steel plate 1 is connected with the side end of the beam by using chemical anchor bolts, and the horizontal surface of the upper connecting steel plate 1 is connected by the pre-buried sleeve bolt passing through the pre-buried steel plate 3 at the bottom of the beam.

[0024] The anti-falling beam device 5 is a U-shaped steel anti-falling beam device. Example 2

[0025] As shown in Figure 2 In this embodiment, the lower connecting steel plate 2 is of a split structure.

[0026] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A fall prevention retrofit device, characterized by: The application relates to a pair of upper connecting steel plates (1), a lower connecting steel plate (2), a beam bottom embedded steel plate (3), a plurality of supports (4) and a pair of anti-falling beam devices (5), wherein the beam bottom embedded steel plate (3) is horizontally embedded in the middle of the beam bottom, the beam bottom embedded steel plate (3) is provided with vertical positioning mechanisms at the positions of the vertical plane of the inner side of the two web vertical surfaces, the positioning mechanisms are at least two vertical plate combinations, the upper connecting steel plate (1) is an L-shaped plate, the two upper connecting steel plates (1) are symmetrically arranged at the horizontal bridge bottom edge positions, the vertical surface of the upper connecting steel plate (1) is arranged at the outer side of the web, the horizontal surface of the upper connecting steel plate (1) is arranged at the lower surface of the bottom plate, the inner edge line of the two upper connecting steel plates (1) is arranged at the lower surface of the beam bottom embedded steel plate (3), the lower connecting steel plate (2) is arranged at the top surface of the bridge pier, the symmetric line between the two upper connecting steel plates (1) and the symmetric line of the lower connecting steel plate (2) along the bridge are located in the same vertical plane, the supports (4) are uniformly arranged between the upper connecting steel plate (1) and the lower connecting steel plate (2) along the horizontal bridge, the anti-falling beam devices (5) are arranged between the upper connecting steel plate (1) and the lower connecting steel plate (2), the two anti-falling beam devices (5) are arranged at the inner edge line positions of the upper connecting steel plates, the vertical projection of the upper connecting steel plate (1) is arranged in the vertical projection range of the lower connecting steel plate (2), and the supports (4) and the anti-falling beam devices (5) connected with the same lower connecting steel plate (2) are symmetrical along the same horizontal bridge surface.

2. A fall prevention retrofit device according to claim 1, characterised in that: The lower connecting steel plate (2) is an integral structure.

3. The fall prevention retrofit device of claim 1, wherein: The lower connecting steel plate (2) is a split structure.

4. The fall prevention retrofit device of claim 1, wherein: The inner surface of the upper connecting steel plate (1) is coated with steel adhesive, the vertical surface of the upper connecting steel plate (1) is connected with the side end of the beam through chemical anchor bolts, and the horizontal surface of the upper connecting steel plate (1) is connected through embedded sleeve bolts penetrating through the beam bottom embedded steel plate (3).

5. The fall prevention retrofit device of claim 1, wherein: The anti-falling beam device (5) is a U-shaped steel anti-falling beam device.

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