Railway bridge assembly type bridge floor connecting device
By introducing steel plate cross frame and docking slot structure into the bridge deck connection device, combined with locking screw connection, the problem of insufficient bridge deck connection strength is solved, and higher connection stability and shear deformation resistance are achieved.
Patent Information
- Application Number
- CN202422425008.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The connection strength of existing railway bridge deck connection devices is relatively weak, especially when the bridge deck is telescopic and displaced.
The bridge deck main body, rubber filling pad main body and embedded steel frame structure are adopted. By setting a steel plate cross frame and docking slot in the rubber filling pad, bolt connections are used to improve the connection strength, and a steel plate slider and locking screw are arranged between the rubber filling pads to enhance stability.
It improves the connection strength and stability of the bridge deck connection device, reduces the risk of collapse, and enhances the shear deformation resistance of the bridge deck during telescopic displacement.
Smart Images
Figure CN223176574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge deck connection devices, in particular to a prefabricated bridge deck connection device for railway bridges. Background Art
[0002] A railway bridge is a structure built for a railway to cross a river, lake, strait, valley or other obstacles, and to achieve a grade separation between railway lines or between a railway line and a road.
[0003] For the joints of the railway bridge deck, a plate-type rubber connection device can be used to cover the joints. The shear deformation of the rubber is used to adapt to the telescopic displacement of the bridge deck. Generally, the production of the bridge deck plate-type rubber connection device has a fixed length. In order to fill the joints, multiple groups are filled in the joints. There is no strong connection structure between multiple groups of plate-type rubber connection devices, resulting in a weak connection strength at the joint. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a prefabricated bridge deck connection device for railway bridges, which solves the problems mentioned in the above background.
[0005] The utility model provides the following technical solutions:
[0006] Including: a bridge deck main body, a rubber filling pad main body attached to the top of the bridge deck main body, and a steel frame main frame filled in the rubber filling pad main body;
[0007] Also including:
[0008] A rubber inner slot is opened inside the rubber filling pad main body, and the steel frame main frame is inserted into the slot of the rubber inner slot;
[0009] An extension steel plate is fixed at one end of the steel frame main frame. A steel plate cross frame is inserted into the middle part of the rubber inner slot, and the top of the extension steel plate intersects with the steel plate cross frame;
[0010] Docking slots are opened at the centers of the front and rear ends of the steel plate cross frame. Docking blocks are inserted into the slots of the docking slots. Corresponding screw holes are opened at both ends of the docking blocks and the bottom of the slots of the docking slots. An opening adapted to the depth of the docking slots is opened at the upper part of the rubber filling pad main body.
[0011] Furthermore, a filling pad slot is opened at the top of the bridge deck main body, the rubber filling pad main body is filled in the slot of the filling pad slot, and a filling rubber strip is connected between two groups of rubber filling pad main bodies distributed oppositely.
[0012] Furthermore, a drainage slot is opened at the upper part of the rubber filling pad main body.
[0013] Further, the cross-sectional shape of the main steel frame is U-shaped, and locking screw hole parts are arranged at intervals on the surface of the main steel frame.
[0014] Further, an opening communicating with the rubber embedded groove and corresponding to the locking screw hole part is arranged at the upper part of the rubber filling pad body, and a locking screw is inserted through the locking screw hole part and the opening.
[0015] Further, a plurality of groups of limiting sliding grooves are arranged at the bottom of the steel plate cross frame.
[0016] Further, the top of the extending steel plate is attached to the bottom of the steel plate cross frame, and a steel plate slider capable of sliding horizontally along the inside of the limiting sliding groove is fixedly arranged at the top of the limiting sliding groove.
[0017] Further, an assembly groove is arranged at the top of the docking plug, and the length of the docking plug is adapted to the groove depth of the two groups of docking slots.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] In the present application, a steel plate cross frame with a larger cross-section is arranged in each rubber filling pad body. At the same time, a recessed docking slot is arranged in the center of the steel plate cross frame. After the side parts of the adjacent two groups of rubber filling pad bodies are attached, by longitudinally inserting the two ends of the docking plug into the docking slot, the screw holes at the two ends of the docking plug and the bottom of the docking slot are aligned, and then the connection part can be strengthened by bolts, which can reduce the collapse caused by insufficient strength at the connection part during subsequent use and improve the connection strength of the interface of the whole plate rubber connection device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic structural diagram of the utility model;
[0021] Figure 2 is a bottom view of the utility model;
[0022] Figure 3 is a schematic structural diagram of the docking plug part of the utility model;
[0023] Figure 4 is an enlarged view of the locking screw hole part of the utility model.
[0024] In the figure: 1, main body of bridge deck; 2, filling pad groove; 3, rubber filling pad body; 4, drainage groove; 5, rubber embedded groove; 6, filling rubber strip; 7, steel plate cross frame; 8, main steel frame; 9, extending steel plate; 10, limiting sliding groove; 11, steel plate slider; 12, locking screw hole part; 13, docking slot; 14, docking plug; 15, assembly groove; 16, locking screw. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] Please refer to Figures 1-4 , including: the main body 1 of the bridge deck, the rubber filling pad main body 3 attached to the top of the main body 1 of the bridge deck, and the steel frame main frame 8 filled in the rubber filling pad main body 3; a filling pad groove 2 is opened at the top of the main body 1 of the bridge deck, so that the rubber filling pad main body 3 can be embedded into the groove of the filling pad groove 2. At the same time, in the gap between the two groups of main bodies 1 of the bridge deck, a deformable filling rubber strip 6 is filled, and both ends of the filling rubber strip 6 are respectively connected to the lower ends of the two groups of rubber filling pad main bodies 3. A concave long strip-shaped drainage groove 4 is opened at the top of the entire rubber filling pad main body 3, and rainwater can move to one side along the groove of the drainage groove 4, reducing water accumulation. A rubber embedded groove 5 is opened in the rubber filling pad main body 3. The rubber embedded groove 5 is divided into two sections. One section is a U shape near the two sides of the rubber filling pad main body 3, and the other section is a straight shape near the center of the rubber filling pad main body 3. A steel frame main frame 8 and a steel plate cross frame 7 are respectively combined in the two sections of the rubber embedded groove 5. The steel plate cross frame 7 is inserted at the middle position of the rubber embedded groove 5, and one end of the steel frame main frame 8 close to the steel plate cross frame 7 extends and is connected to an extended steel plate 9. The extended steel plate 9 is parallel to the steel plate cross frame 7, and the top of the extended steel plate 9 is attached to the bottom of the steel plate cross frame 7, so that the steel frame main frame 8 and the steel plate cross frame 7 can play a supporting role at the same time. During the use of the entire rubber filling pad main body 3, in order to enable the plate rubber connection device to have the ability to resist shear deformation to adapt to the telescopic displacement of the bridge deck, the top of the extended steel plate 9 and the lower end of the steel plate cross frame 7 are not fixed. A plurality of limit sliding grooves 10 are opened at the bottom of the steel plate cross frame 7. At the same time, a plurality of steel plate sliders 11 are fixedly arranged on the top of the extended steel plate 9, and each group of steel plate sliders 11 can slide in the corresponding limit sliding groove 10. Therefore, the extended steel plate 9 and the steel plate cross frame 7 adopt a sliding connection method, which can not only support the steel plate cross frame 7 through the steel frame main frame 8 and the extended steel plate 9, but also the steel plate cross frame 7 and the extended steel plate 9 can displace relative to each other, and the structural design is more reasonable, and the filling connection of the bridge deck seal is more stable.
[0027] A locking screw hole part 12 is provided inside the main steel frame 8. An opening communicating with the rubber embedded groove 5 and corresponding to the locking screw hole part 12 is opened in the upper part of the rubber filling pad body 3. A locking screw 16 is inserted through the locking screw hole part 12 and the opening. An opening corresponding to the locking screw hole part 12 is pre-opened in the main body 1 of the bridge deck. After the rubber filling pad body 3 is assembled into the filling pad groove 2, the opening at the locking screw hole part 12, the opening at the main body 1 of the bridge deck, and the opening at the rubber filling pad body 3 are aligned. Then, the locking screw 16 is screwed in, and the rubber filling pad body 3 and the main steel frame 8 can be locked onto the main body 1 of the bridge deck, making the rubber filling pad body 3 more stable. Moreover, the locking screw 16 is completely embedded in the locking screw hole part 12 without protruding. Therefore, it will not affect the smoothness of the movement of the entire rubber filling pad body 3. And the main steel frame 8 has strong rigidity, providing sufficient rigid support. The rubber filling pad body 3 has a certain deformation ability and shear deformation resistance ability.
[0028] Due to the strong joints on the bridge deck, in actual use, multiple groups of rubber filling pad bodies 3 need to be combined in the filling pad groove 2. The sides of adjacent two groups of rubber filling pad bodies 3 need to be fitted together to improve the integrity of the surface of the entire rubber filling pad body 3. An inward recess is provided at the top of the center part of the rubber filling pad body 3. The inward recess structure will expose a part of the steel plate cross-frame 7 in the rubber embedded groove 5. A docking slot 13 is opened on the surface of the rubber filling pad body 3. At this time, the docking slot 13 is the exposed part. A docking block 14 can be longitudinally inserted into the docking slot 13. Corresponding screw holes are opened at both ends of the docking block 14 and at the bottom of the docking slot 13. An opening adapted to the depth of the docking slot 13 is opened in the upper part of the rubber filling pad body 3. That is, after the docking block 14 is inserted into the docking slot 13, a screw can be screwed in to reinforce the docking block 14 and the docking slot 13. An assembly groove 15 is opened at the top of the docking block 14. After a screw is screwed into the assembly groove 15, the top of the screw does not protrude. And the length of the docking block 14 is adapted to the depth of the two docking slots 13. Therefore, the two steel plate cross-frames 7 and the side walls of the rubber filling pad body 3 can be completely fitted together, so as to use the docking block 14 to support and reinforce the gap and improve the stability.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Prefabricated deck connection device for railway bridges, comprising: The main body of the bridge deck (1), the rubber filling pad main body (3) attached to the top of the main body of the bridge deck (1), and the steel frame main frame (8) filled inside the rubber filling pad main body (3); It is characterized in that it further includes: A rubber embedded groove (5) is opened inside the rubber filling pad main body (3), and the steel frame main frame (8) is inserted into the groove of the rubber embedded groove (5); An extension steel plate (9) is fixed at one end of the steel frame main frame (8), a steel plate cross frame (7) is inserted into the middle part of the rubber embedded groove (5), and the top of the extension steel plate (9) intersects with the steel plate cross frame (7); Docking slots (13) are opened at the central parts of the front and rear ends of the steel plate cross frame (7), docking plugs (14) are inserted into the slots of the docking slots (13), corresponding screw holes are opened at both ends of the docking plugs (14) and the bottom of the slots of the docking slots (13), and an opening adapted to the slot depth of the docking slots (13) is opened at the upper part of the rubber filling pad main body (3).
2. The prefabricated deck connection device for railway bridges according to claim 1, wherein A filling pad groove (2) is opened at the top of the main body of the bridge deck (1), the rubber filling pad main body (3) is filled in the groove of the filling pad groove (2), and a filling rubber strip (6) is connected between two groups of rubber filling pad main bodies (3) distributed oppositely.
3. The prefabricated deck connection device for railway bridges according to claim 1, characterized in that A drain groove (4) is opened at the upper part of the rubber filling pad main body (3).
4. The prefabricated bridge deck connection device for railway bridges according to claim 1, characterized in that, The cross-sectional shape of the steel frame main frame (8) is U-shaped, and locking screw hole parts (12) arranged at intervals are opened on the surface of the steel frame main frame (8).
5. The prefabricated bridge deck connection device for railway bridges according to claim 1, characterized in that, An opening communicating with the rubber embedded groove (5) and corresponding to the locking screw hole part (12) is opened at the upper part of the rubber filling pad main body (3), and a locking screw (16) is passed through the locking screw hole part (12) and the opening.
6. The prefabricated deck connection device for railway bridges according to claim 1, characterized in that, Multiple groups of limit sliding grooves (10) are opened at the bottom of the steel plate cross frame (7).
7. The prefabricated deck connection device for railway bridges according to claim 1, wherein, The top of the extension steel plate (9) is attached to the bottom of the steel plate cross frame (7), and a steel plate slider (11) that can slide horizontally along the groove of the limit sliding groove (10) is fixed at the top of the limit sliding groove (10).
8. The prefabricated deck connection device for railway bridges according to claim 1, characterized in that, An assembly groove (15) is opened at the top of the docking plug (14), and the length of the docking plug (14) is adapted to the slot depth of the two groups of docking slots (13).