A new type of steel structure bridge dragging rail seat device

Abstract

The utility model discloses a novel steel structure bridge drag rail seat, rail seat device, including rail plate (including guide wheel, slider fixed device ring, lug plate, slider fixed device ring etc. assembly), body plate, base three major components. When dragging construction, adopt pre -buried bolt and fix base on bridge pier, and base is connected with body plate through pin bolt, and body plate is connected with rail plate through pin bolt again and forms rail seat whole, and rail plate horizontal bridge side surface welding fixed device ring for fixing slider, and guide wheel is linked on the top plate of rail plate through bolt and is welded lug plate in the bridge direction inside, and lug plate is equipped with connecting hole, and adopts connecting rod and is connected with the rail seat on the same bridge pier horizontally and forms whole, and installation is very convenient. Finally, lubricant is daubed on the rail seat top slide plate and the steel beam bottom that need to push, and the drag construction of light -duty steel beam can be realized, and there is no need to lay slide. The practicability can be used as prefabricated component turnover, reduces waste, and the rail seat has the function of slope adjustment, does not need to set up the shim / cushion beam, and also does not need to lay the slide, and is simple and easy to operate and saves material.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a novel steel structure bridge drag rail base device. Background Technology

[0002] Towing construction is a method for constructing multi-span continuous steel beams, offering advantages such as saving construction land area and increasing construction speed. Towing construction involves assembling the steel beams on the bridge abutment or temporary false piers, installing an "upper sliding track" on the beams, and placing a "lower sliding track" on the top surface of the roadbed, false piers, or piers. The steel beams are then towed to the designated location and installed. The entire process requires no large construction machinery, offering advantages such as simple construction, high safety, and minimal impact on existing traffic, making it widely used in bridge construction.

[0003] However, the installation of false supports and temporary suspension tracks on the piers is time-consuming and wasteful of materials. Furthermore, most false supports are fabricated on-site by the construction team, posing safety hazards. Once the steel beams are in place, the temporary suspension tracks and false supports need to be dismantled. Due to the welded connections and large dimensions of the components in the temporary suspension tracks and false supports, dismantling is quite troublesome. Additionally, when the bridge has a certain longitudinal slope, additional pads or support beams are required, which is not only troublesome to adjust but also results in wasteful on-site steel cutting.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model proposes a novel steel structure bridge drag rail seat device, which can solve the problems in the background technology.

[0006] To achieve the above technical objectives, the technical solution of this utility model is as follows: A novel steel structure bridge towing rail seat device includes a base, which is installed on a temporary concrete pad on the pier by pre-embedded bolts. The vertical plate of the base is provided with pin holes, and is hinged to the rail seat body plate by pins. An angle adjustment device and a limiting keyway device are provided at the hinge, and an anti-slip rubber pad is provided at the joint.

[0007] Furthermore, the rail seat body consists of two plates, upper and lower, with four elastic support blocks symmetrically arranged between them. These elastic support blocks are firmly bonded to the upper and lower plates, forming an elastic support system. This elastic support system can reduce the impact of impact forces during construction on the rail seat and improve its stress distribution.

[0008] Furthermore, the rail seat body plate is hinged to the rail plate by pins. The hinge is equipped with an angle adjustment device and a limiting keyway device, and the joint is equipped with an anti-slip rubber pad to prevent rotation and slippage during construction. The pin insertion end is equipped with a bolt for fastening, and the other end is a large-head limiting device.

[0009] Furthermore, two semi-circular rings are welded and fixed to the top plate of the rail base, and the tetrachloroethylene slider is fixed inside the rings to prevent the sliding plate from moving forward with the steel beam when the steel beam is dragged.

[0010] Furthermore, guide wheels are installed along the outer edge of the rail plate on the side of the bridge, and the guide wheels are connected to the rail plate by bolts. A distance of not less than 30mm is maintained between the guide wheels and the towed steel beam to avoid frictional resistance between the steel beam and the guide wheels during the towing process.

[0011] Furthermore, the rail base and the pier are fixed with bolts, which makes installation and dismantling convenient. The rail base can also be mass-produced and reused.

[0012] Furthermore, the pin-connected hinge on the rail seat allows for adjustment of the longitudinal slope of the rail seat top surface.

[0013] Furthermore, the ear plate is provided with connecting holes, which can be used to connect the rail seats on the same bridge pier laterally with connecting rods, thereby increasing stability.

[0014] The beneficial effects of this utility model are as follows: During the construction of steel beam dragging, only rail seats need to be installed on the pier, and lubricant can be applied to the bottom of the beam and the contact surface of the rail seats for dragging. There is no need to set up a slide, which saves the process of setting up temporary supports and slides. The rail seats themselves have the function of adjusting the longitudinal slope of the top, so there is no need to lay slope adjustment steel pads, which can simplify the process and save materials. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall assembly of a novel steel structure bridge drag rail seat device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the track plate according to an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the body structure according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the base according to an embodiment of the present utility model.

[0019] In the diagram: 1. Rail plate; 2. Body plate; 3. Base; 4. Bolt; 5. Guide wheel; 6. Slider; 7. Fixing device ring; 8. Ear plate; 9. Pin A; 10. Pin B; 11. Elastic support block. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, a novel steel structure bridge towing rail seat device according to an embodiment of the present utility model includes a base 3. The rail seat base 3 is fixed to the bridge pier by pre-embedded bolts. The base 3 is hinged to the body plate 2 by pins. The body plate 2 is then hinged to the rail plate 1 to form an integral rail seat.

[0022] In one specific embodiment of this utility model, pins A and B are provided with angle adjustment devices and limiting keyway devices, and the joint is provided with anti-slip pads to facilitate adjustment of the longitudinal slope of the top surface of the rail seat and locking of the joint surface. Anti-slip pads are provided at pins A and B, the pin insertion end is provided with a bolt fastening device, and the other end is a large-end limiting device. In one specific embodiment of this utility model, the body plate 2 is composed of two plates, upper and lower, with four elastic support blocks 11 symmetrically arranged between the upper and lower plates. The elastic support blocks 11 connect the body plate 2 into an integral support to alleviate the impact force generated during dragging.

[0023] In one specific embodiment of this utility model, a fixing device ring 7 is welded to the side of the rail plate 1 on the transverse bridge to fix the slider 6 and prevent the slider 6 from moving longitudinally with the steel beam.

[0024] In one specific embodiment of this utility model, the top plate of the rail seat 1 is welded with ear plates 8 along the bridge direction to the inside, for lateral connection between rail seats on the same pier.

[0025] In one specific embodiment of this utility model, the rail plate 1 of the rail base is provided with a guide wheel 5 along the outer side of the bridge. The guide wheel 5 is connected to the rail plate 1 by bolts. The guide wheel 5 and the dragging steel beam maintain a lateral distance of not less than 30mm to prevent the steel beam from contacting the guide wheel and generating frictional resistance.

[0026] The guide wheel 5 is connected to the top surface of the outer side of the rail seat by bolts 4. When pushing, it maintains a 30mm gap with the truss beam to avoid increasing frictional resistance.

[0027] In one specific embodiment of this utility model, the ear plate 8 is provided with a connecting hole, which can be used to connect the rail seats on the same bridge pier laterally, thereby increasing stability.

[0028] In summary, with the help of the above-mentioned technical solution of this utility model, during the steel beam dragging construction process, only rail seats need to be installed on the pier, without the need to set up slides, thus eliminating the need for temporary support and slide erection procedures. The rail seats themselves have the function of adjusting the longitudinal slope of the top, eliminating the need to lay slope-adjusting steel pads, which can achieve the effect of simplifying procedures and saving materials.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel steel structure bridge track support device, characterized in that, Includes a base (3), which is connected to the body plate (2) by a pin A. The body plate (2) is then connected to the rail plate (1) by a pin B to form a rail seat. The rail plate (1) has a fixing device ring (7) welded to the side of the transverse bridge to fix the slider (6). The top plate of the rail plate (1) has an ear plate (8) welded to the inside of the transverse bridge. The guide wheel (5) is connected to the rail plate (1) by bolts (4).

2. The novel steel structure bridge drag rail support device according to claim 1, characterized in that, The body plate (2) is composed of two plates, upper and lower, with four elastic support blocks (11) symmetrically arranged between the upper and lower plates. The elastic support blocks (11) connect the body plate (2) into a whole.

3. The novel steel structure bridge drag rail support device according to claim 1, characterized in that, The bolt joint between pins A and B is equipped with an angle adjustment device and a limiting keyway device, which can adjust the longitudinal slope of the top surface of the rail seat.

4. The novel steel structure bridge drag rail support device according to claim 1, characterized in that, Anti-slip pads are installed at pin A and pin B, and a bolt fastening device is provided at the insertion end of the pin, while the other end is a large-head limit device.

5. A novel steel structure bridge drag rail support device according to claim 1, characterized in that, The ear plate (8) is provided with a connecting hole, which can be used to connect the rail seats on the same bridge pier laterally with a connecting rod, thereby increasing stability.

6. A novel steel structure bridge towing rail support device according to claim 1, characterized in that, The guide wheel (5) is connected to the top surface of the outer side of the rail seat by bolts (4). When pushing, it maintains a 30mm gap with the truss beam to avoid increasing frictional resistance.

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