Bridge deck

Abstract

The utility model provides a bridge deck slab. The bridge deck slab comprises a top plate, U-shaped ribs and inverted-T-shaped rib plates. The U-shaped ribs are arranged at the bottom of the top plate in the length direction of the top plate. The U-shaped rib comprises a bottom wall and side walls connected to the two sides of the bottom wall respectively. And a plurality of mounting holes are formed in the bottom wall along the length direction of the U-shaped rib. The inverted-T-shaped rib plate comprises a bottom plate and a web vertically arranged at the top of the bottom plate. A plurality of open seams perpendicular to the bottom plate are formed in the top of the web plate, so that mounting teeth used for being correspondingly inserted into the mounting holes are formed between every two corresponding adjacent open seams. In the length direction of the U-shaped ribs, the length of the mounting holes is larger than the thickness of the mounting teeth, the side edges and the bottom edges of the mounting teeth are fixedly welded to the corresponding portions of the U-shaped ribs respectively, and the top edges of the mounting teeth are fixedly welded to the bottom of the top plate. Compared with the prior art, the bridge deck provided by the utility model is relatively high in bearing capacity and relatively good in anti-fatigue performance, so that the service life of the whole bridge deck can be prolonged.

Description

Technical Field

[0001] This application relates to the technical field of bridge structures, and particularly to a bridge deck slab. Background Art

[0002] The bridge deck slab, also known as the carriageway slab, is a load-bearing structure that directly bears the wheel pressure of vehicles. The bridge deck slab usually includes a top plate, U-shaped ribs, and inverted T-shaped rib plates arranged in sequence from top to bottom. During assembly, the U-shaped ribs are first connected to the top plate, and then the inverted T-shaped rib plates are welded to the U-shaped ribs. To facilitate the welding of the inverted T-shaped rib plates to the U-shaped ribs, a U-shaped opening is usually provided on the inverted T-shaped rib plate, and the U-shaped rib is inserted into the U-shaped opening, and then the inverted T-shaped rib plate and the U-shaped rib can be connected by welding.

[0003] However, during the process of implementing the technical solutions in the embodiments of this application, the inventors of this application found that the above technologies have at least the following technical problems: on the one hand, since a U-shaped opening is provided on the inverted T-shaped rib plate, the integrity of the inverted T-shaped rib plate is damaged, the strength of the inverted T-shaped rib plate is reduced, and the bearing capacity of the inverted T-shaped rib plate is greatly weakened; on the other hand, with this connection method, welding with the inverted T-shaped rib plate can only be achieved on the outside of the U-shaped rib, that is, only one-sided welding, resulting in a relatively weak welding strength at the welding joint and being prone to fatigue cracks.

[0004] Therefore, due to the current bridge deck slab having defects such as low bearing capacity and poor anti-fatigue performance, the service life of the entire bridge deck slab is affected; thus, there is an urgent need for a bridge deck slab with strong bearing capacity and good anti-fatigue performance to solve the above problems.

[0005] The information disclosed in this background art section is only used to deepen the understanding of the background art of this disclosure, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0006] In view of the above problems, a bridge deck slab is provided that overcomes the above problems or at least partially solves the above problems. This bridge deck slab not only has a relatively strong bearing capacity but also has good anti-fatigue performance, so the service life of the entire bridge deck slab can be extended.

[0007] Specifically, the present application provides a bridge deck, which includes a top plate, U-shaped ribs and inverted T-shaped rib plates; the U-shaped ribs are arranged at the bottom of the top plate along the length direction of the top plate; the U-shaped ribs include a bottom wall and side walls respectively connected to both sides of the bottom wall; a plurality of mounting holes are arranged on the bottom wall along the length direction of the U-shaped ribs; the inverted T-shaped rib plates include a bottom plate and a web vertically arranged on the top of the bottom plate; a plurality of opening slits perpendicular to the bottom plate are formed at the top of the web, so as to form mounting teeth for correspondingly inserting into the mounting holes between two adjacent corresponding opening slits; along the length direction of the U-shaped ribs, the length of the mounting holes is greater than the thickness of the mounting teeth, the side and bottom edges of the mounting teeth are respectively welded and fixed to the corresponding parts of the U-shaped ribs, and the top edge of the mounting teeth is welded and fixed to the bottom of the top plate.

[0008] Optionally, the depth of the opening slit is not less than the height of the side wall.

[0009] Optionally, the opening slit has a gradually widening arc-shaped opening with the opening facing upwards.

[0010] Optionally, a process hole is communicated with the lower end of the opening slit.

[0011] Optionally, both the top plate and the U-shaped ribs are made of steel; the two side walls of the U-shaped ribs are connected to the bottom of the top plate by welding.

[0012] Optionally, at least three U-shaped ribs are connected to the bottom of each top plate, and the U-shaped ribs are arranged along the width direction of the top plate; and at least four inverted T-shaped rib plates are welded to the bottom of the U-shaped ribs.

[0013] Optionally, the U-shaped ribs are arranged parallel to each other; the inverted T-shaped rib plates are arranged parallel to each other.

[0014] For the bridge deck of the present application, the mounting holes on the U-shaped ribs cooperate with the mounting teeth on the inverted T-shaped rib plates, and then are connected by welding. Compared with the prior art, since the structure of the inverted T-shaped rib plate is relatively complete, the integrity of the inverted T-shaped rib plate is better, the strength is higher, and thus the bearing capacity is stronger. Moreover, not only can the welding with the inverted T-shaped rib plate be realized on the outside of the U-shaped ribs, but also the welding between the inside of the U-shaped ribs and the inverted T-shaped rib plate can be realized through the mounting holes on the U-shaped ribs, that is, double-sided welding can be realized, so that the welding strength at the welding position is higher and fatigue cracks are avoided. Therefore, due to the strong bearing capacity and good anti-fatigue performance of the bridge deck in this application, the service life of the entire bridge deck can be extended.

[0015] Those skilled in the art will understand the above and other objects, advantages and features of the present application more clearly according to the following detailed description of specific embodiments of the present application in conjunction with the accompanying drawings. Brief Description of the Drawings

[0016] Figure 1 This is a schematic structural diagram of the bridge deck in the embodiment of the present application.

[0017] Figure 2 This is a schematic exploded view of the bridge deck in the embodiment of the present application.

[0018] Figure 3 This is a schematic structural diagram of the U-shaped rib of the bridge deck in the embodiment of the present application.

[0019] Figure 4 This is a schematic structural diagram of the inverted T-shaped rib plate of the bridge deck in the embodiment of the present application.

[0020] In the above figures, 100 is the bridge deck, 110 is the top plate, 120 is the U-shaped rib, 121 is the bottom wall, 122 is the side wall, 123 is the mounting hole, 130 is the inverted T-shaped rib plate, 131 is the bottom plate, 132 is the web, 133 is the opening seam, 134 is the mounting tooth, 135 is the gradually widening arc-shaped opening, and 136 is the process hole. Detailed Description of the Embodiment

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. And the "connection" and "coupling" involved in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0022] Figure 1 This is a schematic structural diagram of the bridge deck in the embodiment of the present application, as Figure 1 shown, and referring to Figures 2 to 4, an embodiment of the present application provides a bridge deck 100, including a top plate 110, U-shaped ribs 120 and inverted T-shaped rib plates 130. The top plate 110 is horizontally arranged. The U-shaped ribs 120 are arranged at the bottom of the top plate 110 along the length direction of the top plate 110. The U-shaped ribs 120 include a bottom wall 121 and side walls 122 respectively connected to both sides of the bottom wall 121. A plurality of mounting holes 123 are arranged on the bottom wall 121 along the length direction of the U-shaped ribs 120. The inverted T-shaped rib plate 130 includes a bottom plate 131 and a web 132 vertically arranged on the top of the bottom plate 131. A plurality of opening slits 133 perpendicular to the bottom plate 131 are formed at the top of the web 132 to form mounting teeth 134 for corresponding insertion into the mounting holes 123 between two adjacent corresponding opening slits 133. Along the length direction of the U-shaped ribs 120, the length of the mounting holes 123 is greater than the thickness of the mounting teeth 134. The side and bottom edges of the mounting teeth 134 are respectively welded and fixed to the corresponding parts of the U-shaped ribs 120, and the top edge of the mounting teeth 134 is welded and fixed to the bottom of the top plate 110.

[0023] In the bridge deck 100 of the embodiment of the present application, the assembly process of the bridge deck 100 is as follows: First, connect the U-shaped ribs 120 to the bottom of the top plate 110, then insert the mounting teeth 134 of the inverted T-shaped rib plate 130 into the corresponding mounting holes 123. At this time, the two side walls 122 at the mounting holes 123 are also inserted into the corresponding two opening slits 133. Then, weld and fix the bottom edge of the mounting teeth 134 to the corresponding part of the outer side surface of the U-shaped ribs 120. Through the mounting holes 123, the side edges of the mounting teeth 134 can be welded and fixed to the corresponding parts of the inner side surface of the U-shaped ribs 120. Finally, weld and fix the top edge of the mounting teeth 134 to the bottom of the top plate 110.

[0024] For the bridge deck 100 of this embodiment, the mounting holes 123 on the U-shaped ribs 120 cooperate with the mounting teeth 134 on the inverted T-shaped rib plate 130, and then are connected by welding. Compared with the prior art, since no opening holes are provided on the inverted T-shaped rib plate 130, the structure of the inverted T-shaped rib plate 130 is relatively complete, making the integrity of the inverted T-shaped rib plate 130 better, the strength higher, and thus the bearing capacity stronger. Moreover, not only can the welding between the U-shaped ribs 120 and the inverted T-shaped rib plate 130 be realized on the outer side of the U-shaped ribs 120, but also the welding between the inner side of the U-shaped ribs 120 and the inverted T-shaped rib plate 130 can be realized through the mounting holes 123 on the U-shaped ribs 120, that is, double-sided welding can be realized, making the welding strength at the welding position higher and avoiding the generation of fatigue cracks. Therefore, due to the strong bearing capacity and good anti-fatigue performance of the bridge deck 100 in this embodiment, the service life of the entire bridge deck 100 can be extended.

[0025] In some embodiments of the present application, the depth of the opening slit 133 is not less than the height of the side wall 122. Such a setting enables the side wall 122 to be completely inserted into the opening slit 133, thereby enabling deeper insertion, firmer connection, and enabling the installation teeth 134 to abut against and rest on the bottom of the top plate 110, thereby realizing the welding fixation of the installation teeth 134 and the top plate 110.

[0026] In some embodiments of the present application, as Figure 4 shown, the opening slit 133 has a gradually widening arc-shaped opening 135 with the opening facing upward. In this embodiment, when the two side walls 122 at the installation hole 123 are inserted into the corresponding two opening slits 133, the gradually widening arc-shaped opening 135 facilitates the insertion of the two side walls 122, thereby facilitating the assembly of the U-shaped rib 120 and the inverted T-shaped rib plate 130. Of course, the gradually widening arc-shaped opening 135 can also be an inverted triangular opening, as long as the opening is gradually widening, the requirements can be met.

[0027] In some embodiments of the present application, as Figure 4 shown, a process hole 136 is communicated with the lower end of the opening slit 133. In this embodiment, due to the provision of the process hole 136, on the one hand, it can avoid the phenomenon of stress concentration at the lower end position of the opening slit 133 on the web 132, causing the local stress to exceed the allowable stress value of the material, resulting in the unstable propagation of cracks and the occurrence of fracture. On the other hand, the process hole 136 also facilitates installation and positioning.

[0028] In some embodiments of the present application, both the top plate 110 and the U-shaped rib 120 are made of steel. The two side walls 122 of the U-shaped rib 120 are connected to the bottom of the top plate 110 by welding. In this embodiment, the connection by welding makes the connection strength between the U-shaped rib 120 and the top plate 110 relatively high and the connection relatively stable.

[0029] In some embodiments of the present application, as Figure 1 and Figure 2 shown, at least three U-shaped ribs 120 are connected to the bottom of each top plate 110, and the U-shaped ribs 120 are arranged along the width direction of the top plate 110. And at least four inverted T-shaped rib plates 130 are welded to the bottom of the U-shaped rib 120. In this embodiment, by providing at least three U-shaped ribs 120 and at least four inverted T-shaped rib plates 130 at the bottom of one top plate 110, the connection of the bridge deck 100 is relatively firm, and thus the quality of the bridge deck 100 is relatively good. Of course, according to needs, other appropriate numbers of U-shaped ribs 120 and inverted T-shaped rib plates 130 can be provided at the bottom of each top plate 110.

[0030] In some embodiments of the present application, as Figure 1 and Figure 2As shown, the U-shaped ribs 120 are arranged parallel to each other. The inverted T-shaped rib plates 130 are arranged parallel to each other. In this embodiment, the U-shaped ribs 120 and the inverted T-shaped rib plates 130 are all arranged parallel to each other, making the force on the bridge deck more uniform and facilitating installation.

[0031] Although some preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of its inventive concept. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A bridge deck, characterized in that: include: roof; A U-shaped rib is arranged at the bottom of the top plate along the length direction of the top plate; the U-shaped rib comprises a bottom wall and side walls respectively connected to both sides of the bottom wall; a plurality of mounting holes are arranged on the bottom wall along the length direction of the U-shaped rib; An inverted T-shaped rib plate, comprising a bottom plate and a web plate vertically arranged on the top of the bottom plate; a plurality of opening slots vertical to the bottom plate are formed on the top of the web plate, so that mounting teeth for corresponding insertion into the mounting holes are formed between two corresponding adjacent opening slots; Along the length direction of the U-shaped rib, the length of the mounting hole is greater than the thickness of the mounting tooth, the side and bottom edges of the mounting tooth are respectively welded and fixed to the corresponding parts of the U-shaped rib, and the top edge of the mounting tooth is welded and fixed to the bottom of the top plate.

2. The bridge deck according to claim 1, characterized in that: The depth of the opening slit is not less than the height of the side wall.

3. The bridge deck according to claim 1, characterized in that: The opening slit has an arc-shaped opening that gradually widens and opens upward.

4. The bridge deck according to claim 1, characterized in that: The lower end of the opening slit is connected with a process hole.

5. The bridge deck according to claim 1, characterized in that: The top plate and the U-shaped ribs are both made of steel; the two side walls of the U-shaped ribs are connected to the bottom of the top plate by welding.

6. The bridge deck according to claim 1, characterized in that: At least three U-shaped ribs are connected to the bottom of each top plate, and each U-shaped rib is arranged along the width direction of the top plate; and at least four inverted T-shaped ribs are welded to the bottom of the U-shaped ribs.

7. The bridge deck according to claim 6, characterized in that: The U-shaped ribs are arranged parallel to each other; and the inverted T-shaped ribs are arranged parallel to each other.

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