Steel bridge deck pavement layer and steel plate shear stress adaptive structure

Abstract

The utility model relates to bridge deck steel plate technical field, the application discloses steel bridge deck pavement layer and steel plate shearing stress adaptation structure, the utility model discloses a first fixed steel plate and second fixed steel plate are set up on the top surface of steel bridge deck pavement layer, and first fixed steel plate and second fixed steel plate are fixed on steel bridge deck pavement layer through first bolt, steel plate main part is covered on first fixed steel plate and second fixed steel plate again, and fixed side plate is fixed on first fixed steel plate and second fixed steel plate through second screw hole, and the bottom end of fixed side plate is welded with first fixed steel plate and second fixed steel plate again, the fixed strength between steel plate main part and first fixed steel plate, second fixed steel plate is promoted, the shearing stress concentration problem of bridge deck steel plate in long -term use is easy to appear due to vehicle load, environmental factor etc.

Description

Technical Field

[0001] This utility model application relates to the field of bridge deck steel plate technology, specifically to a structure that adapts the steel bridge deck pavement layer to the shear stress resistance of the steel plate. Background Technology

[0002] The pavement of steel bridges typically bears traffic loads, temperature changes, and other external factors. To enhance the connection strength and shear resistance between the bridge deck and the steel plates, reinforcing structures (such as strengthening the connection layer, increasing the thickness of the steel plates, and optimizing the reinforcement) can effectively improve the shear stress distribution, reduce stress concentration in the pavement, and extend the service life of the bridge.

[0003] During long-term use, the shear stress adaptation structure between the steel bridge deck pavement and the steel plate is affected by environmental factors such as vehicle loads, temperature changes, and humidity, leading to localized shear stress concentration. This can cause problems such as cracking, deformation, or failure of the steel plate. Existing reinforcement methods mostly involve increasing the thickness of the steel plate or welding reinforcing ribs. Although these methods can improve the shear resistance of the bridge deck steel plate to some extent, increasing the thickness of the steel plate or welding reinforcing ribs requires high technical requirements. The construction process requires precise measurement and design of the original bridge structure, and may also require large-scale processing and adjustments on the bridge deck. This increases the complexity and time of construction. To ensure the stability of the original structure and prevent uneven stress during construction from affecting the overall safety of the bridge, steel bridges are reinforced by increasing the thickness of steel plates or welding reinforcing ribs. This usually requires modifications to the original bridge structure, such as welding, drilling, or cutting. These operations may damage the original structure of the steel bridge, change its original stress state, and may even lead to stress concentration or local deformation. Although thickening the steel plates or adding reinforcing ribs can improve local shear resistance to some extent, these methods may cause changes in the overall structural stress state of the bridge. This is especially true for some bridges that were originally designed with more detailed considerations, as changes to their structure may affect the overall stability or load-bearing capacity of the bridge. Summary of the Invention

[0004] To address the problem that steel bridge decks are prone to shear stress concentration due to vehicle loads and environmental factors during long-term use, leading to cracking, deformation, or even failure, this invention provides a shear stress-adaptive structure for the steel bridge deck pavement layer and the steel plate to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel bridge deck pavement layer and steel plate shear stress adaptation structure includes a steel bridge deck pavement layer. A first fixed steel plate and a second fixed steel plate are provided on the top surface of the steel bridge deck pavement layer. First bolts are provided inside both the first and second fixed steel plates and the steel bridge deck pavement layer. The first and second fixed steel plates are threadedly connected to the first bolts through first screw holes and are fixed to the top surface of the steel bridge deck pavement layer. A steel plate body is provided on the top surface of the first and second fixed steel plates. Two fixed side plates are symmetrically fixed at the bottom end of the steel plate body. Several second screw holes are provided on the side of the fixed side plates and inside both the first and second fixed steel plates. The fixed side plates are threadedly connected to the first and second fixed steel plates through second bolts and are fixed to the inside of the first and second fixed steel plates.

[0007] Furthermore, a number of limiting slot blocks are fixed on the top surface of the steel bridge deck pavement layer, and a limiting strip block that cooperates with the limiting slot blocks is fixed at the bottom end of the steel plate body. The limiting slot blocks and the limiting strip blocks are fixedly connected by a third bolt.

[0008] Furthermore, the limiting slot block has an adjustment screw hole inside, and the limiting strip block has a third screw hole inside.

[0009] Furthermore, the radius of the third screw hole matches the radius of the third bolt, the height of the adjusting screw hole is greater than the height of the third screw hole, and the width of the adjusting screw hole is the same as the width of the third screw hole.

[0010] Furthermore, the ends of the first fixing steel plate and the second fixing steel plate that are close to each other are in a matching "Z" shape, the first screw hole passes through the end where the first fixing steel plate and the second fixing steel plate are connected, and a rubber pad is provided at the connection between the first fixing steel plate and the second fixing steel plate.

[0011] Furthermore, the top surface of the first screw hole is provided with an embedded groove, and the first bolt is an embedded bolt.

[0012] Furthermore, a connecting plate is fixed to one end of the fixed side plate near the third screw hole, and the bottom end of the connecting plate is flush with the bottom end of the limiting strip block. The height of the limiting strip block is less than the height of the limiting groove block.

[0013] Furthermore, one end of the fixed side plate near the first fixed steel plate and the second fixed steel plate is attached to the first fixed steel plate and the second fixed steel plate, and the bottom end of the fixed side plate is welded to the first fixed steel plate and the second fixed steel plate.

[0014] Furthermore, a fixing sleeve is fixed to the top surface of the steel bridge deck pavement layer, and a fixing nut is rotatably provided on the top surface of the fixing sleeve. A fixing threaded rod is fixed to the bottom end of the steel plate body, and the fixing threaded rod is threadedly connected to the fixing nut.

[0015] Furthermore, a bearing is provided on the top surface of the fixing sleeve, and the fixing nut is rotatably connected to the fixing sleeve through the bearing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, by setting a first fixed steel plate and a second fixed steel plate on the top surface of the steel bridge deck pavement, and fixing the first fixed steel plate and the second fixed steel plate to the steel bridge deck pavement with a first bolt, and then covering the steel plate body with the first fixed steel plate and the second fixed steel plate, and fixing the fixed side plate to the first fixed steel plate and the second fixed steel plate with a second screw hole, and then welding the bottom end of the fixed side plate to the first fixed steel plate and the second fixed steel plate, the fixing strength between the steel plate body and the first fixed steel plate and the second fixed steel plate is improved. This solves the problem that the steel plate of the bridge deck is prone to shear stress concentration due to vehicle load, environmental factors and other factors during long-term use, which leads to cracking, deformation or even failure of the steel plate.

[0018] 2. In this utility model, limiting slot blocks are respectively set on both sides of the top surface of the steel bridge deck pavement layer, and the limiting strip block at the bottom of the steel plate body is engaged and inserted into the limiting slot block. At the same time, it is fixed by the third bolt, so that the steel bridge deck pavement layer and the steel plate body are fixed by the limiting strip block and the limiting slot block, which improves the fixing strength of the steel plate body on the top surface of the first fixed steel plate and the second fixed steel plate, and also further improves the shear stress resistance of the steel plate body. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top-view perspective structural diagram according to an embodiment of this application;

[0021] Figure 2 yes Figure 1 The diagram shown is a three-dimensional representation of the structure after opening in the embodiment shown.

[0022] Figure 3 yes Figure 1 The above-view three-dimensional structural diagram is shown in the embodiment.

[0023] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixed structure in the embodiment shown;

[0024] Figure 5 yes Figure 1 A top-view cross-sectional view of a partial structure in the illustrated embodiment.

[0025] The meanings of the reference numerals in the attached diagram are as follows: 1. Steel bridge deck pavement layer; 2. First fixed steel plate; 3. Second fixed steel plate; 4. Steel plate body; 5. First screw hole; 6. First bolt; 7. Fixed side plate; 8. Second screw hole; 9. Second bolt; 10. Limiting slot block; 11. Limiting strip block; 12. Adjusting screw hole; 13. Third screw hole; 14. Fixed sleeve rod; 15. Fixed nut; 16. Fixed screw rod. Detailed Implementation

[0026] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The steel bridge deck pavement layer and steel plate shear stress adaptation structure includes a steel bridge deck pavement layer 1. A first fixed steel plate 2 and a second fixed steel plate 3 are provided on the top surface of the steel bridge deck pavement layer 1. The first fixed steel plate 2 and the second fixed steel plate 3 are both provided with first bolts 6 inside the steel bridge deck pavement layer 1. The first fixed steel plate 2 and the second fixed steel plate 3 are threadedly connected to the first bolts 6 through first screw holes 5 and fixed to the top surface of the steel bridge deck pavement layer 1. A steel plate body 4 is provided on the top surface of the first fixed steel plate 2 and the second fixed steel plate 3. Two fixed side plates 7 are symmetrically fixed at the bottom end of the steel plate body 4. The side of the fixed side plates 7 and the inside of the first fixed steel plate 2 and the second fixed steel plate 3 are both provided with several second screw holes 8. The fixed side plates 7 are threadedly connected to the first fixed steel plate 2 and the second fixed steel plate 3 through second bolts 9 and the second screw holes 8, so that the steel plate body 4 is fixedly connected to the steel bridge deck pavement layer 1 through the first fixed steel plate 2 and the second fixed steel plate 3.

[0028] Specifically, a connecting plate is fixed to one end of the fixed side plate 7 near the third screw hole 13, and the bottom end of the connecting plate is flush with the bottom end of the limiting clip block 11. The height of the limiting clip block 11 is less than the height of the limiting slot block 10. A fixing sleeve rod 14 is fixed to the top surface of the steel bridge deck pavement layer 1. A fixing nut 15 is rotatably set on the top surface of the fixing sleeve rod 14. A fixing screw rod 16 is fixed to the bottom end of the steel plate body 4. The fixing screw rod 16 and the fixing nut 15 are threadedly connected. A bearing is provided on the top surface of the fixing sleeve rod 14. The fixing nut 15 and the fixing sleeve rod 14 are rotatably connected through the bearing. At the connection between the first fixed steel plate 2 and the second fixed steel plate 3, the fixing screw rod 16 and the fixing nut 15 strengthen the fixed connection between the steel plate body 4 and the steel bridge deck pavement layer 1.

[0029] As an optimization solution, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, several limiting slot blocks 10 are fixed on the top surface of the steel bridge deck pavement layer 1, and limiting strip blocks 11 that cooperate with the limiting slot blocks 10 are fixed at the bottom of the steel plate body 4. The limiting slot blocks 10 and the limiting strip blocks 11 are fixedly connected by a third bolt. The limiting slot blocks 10 have an adjusting screw hole 12 inside, and the limiting strip blocks 11 have a third screw hole 13 inside. The radius of the third screw hole 13 is matched with the radius of the third bolt. The height of the adjusting screw hole 12 is greater than the height of the third screw hole 13, and the width of the adjusting screw hole 12 is the same as the width of the third screw hole 13. The cooperation of the limiting slot blocks 10 and the limiting strip blocks 11 further enhances the shear stress resistance of the steel plate body 4.

[0030] Specifically, a connecting plate is fixed to one end of the fixed side plate 7 near the third screw hole 13, and the bottom end of the connecting plate is flush with the bottom end of the limiting clip block 11. The height of the limiting clip block 11 is less than the height of the limiting clip slot block 10. The end of the fixed side plate 7 near the first fixed steel plate 2 and the second fixed steel plate 3 is in contact with the first fixed steel plate 2 and the second fixed steel plate 3. The bottom end of the fixed side plate 7 is welded to the first fixed steel plate 2 and the second fixed steel plate 3. The welding improves the fixing strength between the steel plate body 4 and the first fixed steel plate 2 and the second fixed steel plate 3.

[0031] Working principle: Workers lay the first fixing steel plate 2 and the second fixing steel plate 3 on the top surface of the steel bridge deck pavement layer 1. They then align the first screw holes 5 with the first bolts 6 on the steel bridge deck pavement layer 1, the first fixing steel plate 2, and the second fixing steel plate 3, thus fixing the first fixing steel plate 2 and the second fixing steel plate 3 to the top surface of the steel bridge deck pavement layer 1. Next, the steel plate body 4 is placed on top of the first fixing steel plate 2 and the second fixing steel plate 3. Simultaneously, the limiting clip 11 at the bottom of the steel plate body 4 is aligned with the limiting clip groove 10 on the top surface of the steel bridge deck pavement layer 1 and inserted. At the same time, the fixing screw 16 at the bottom of the fixing sleeve 14 is aligned with the fixing nut 15. By rotating the fixing nut 15, the fixing nut 15 moves the fixing screw 16, causing the fixing screw 16 to move inwards into the fixing sleeve 14. The movement causes the fixing nut 15 to fix the steel plate body 4 through the fixing screw 16. At the same time, the second bolt 9 aligns the fixing side plate 7 with the first fixing steel plate 2 and the second fixing steel plate 3, which have a second screw hole 8 inside. The second bolt 9 fixes the fixing side plate 7 with the first fixing steel plate 2 and the second fixing steel plate 3, thus fixing the steel plate body 4 with the first fixing steel plate 2 and the second fixing steel plate 3 through the second bolt 9. At this time, the workers weld the bottom end of the fixing side plate 7 to the connection between the first fixing steel plate 2 and the second fixing steel plate 3 to improve the fixing effect between the steel plate body 4 and the first fixing steel plate 2 and the second fixing steel plate 3. At the same time, the third bolt passes through the adjusting screw hole 12 and the third screw hole 13 for fixing, further improving the shear stress resistance of the steel plate body 4 during use.

[0032] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. Steel bridge deck pavement and steel plate shear stress matching structure, comprising a steel bridge deck pavement (1), characterized in that: The top surface of the steel bridge deck pavement layer (1) is provided with a first fixed steel plate (2) and a second fixed steel plate (3). The first fixed steel plate (2) and the second fixed steel plate (3) and the steel bridge deck pavement layer (1) are both provided with first bolts (6). The first fixed steel plate (2) and the second fixed steel plate (3) are threadedly connected to the first bolts (6) through first screw holes (5) and fixed to the top surface of the steel bridge deck pavement layer (1). The top surface of the first fixed steel plate (2) and the second fixed steel plate (3) is provided with a steel plate body (4). The bottom end of the steel plate body (4) is symmetrically fixed with two fixed side plates (7). The side of the fixed side plate (7) and the inside of the first fixed steel plate (2) and the second fixed steel plate (3) are both provided with several second screw holes (8). The fixed side plate (7) is threadedly connected to the second screw holes (8) through second bolts (9) and fixed to the inside of the first fixed steel plate (2) and the second fixed steel plate (3).

2. The steel bridge deck pavement and steel plate shear stress adaptation structure according to claim 1, characterized in that: The top surface of the steel bridge deck pavement layer (1) is fixed with several limiting slot blocks (10), and the bottom end of the steel plate body (4) is fixed with a limiting strip block (11) that cooperates with the limiting slot blocks (10). The limiting slot blocks (10) and the limiting strip blocks (11) are fixedly connected by a third bolt.

3. The steel bridge deck pavement and steel plate shear stress adaptation structure according to claim 2, characterized in that: The limiting slot block (10) has an adjustment screw hole (12) inside, and the limiting strip block (11) has a third screw hole (13) inside.

4. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 3, characterized in that: The radius of the third screw hole (13) matches the radius of the third bolt. The height of the adjusting screw hole (12) is greater than the height of the third screw hole (13). The width of the adjusting screw hole (12) is the same as the width of the third screw hole (13).

5. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 1, characterized in that: The first fixing steel plate (2) and the second fixing steel plate (3) are in a matching "Z" shape at the ends closest to each other. The first screw hole (5) passes through the end where the first fixing steel plate (2) and the second fixing steel plate (3) are connected. A rubber pad is provided at the connection between the first fixing steel plate (2) and the second fixing steel plate (3).

6. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 5, characterized in that: The first screw hole (5) has an embedded groove on its top surface, and the first bolt (6) is an embedded bolt.

7. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 1, characterized in that: The fixed side plate (7) is fixed with a connecting plate at one end near the third screw hole (13), and the bottom end of the connecting plate is flush with the bottom end of the limiting card block (11). The height of the limiting card block (11) is less than the height of the limiting card groove block (10).

8. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 7, characterized in that: The fixed side plate (7) is attached to the first fixed steel plate (2) and the second fixed steel plate (3) at one end, and the bottom end of the fixed side plate (7) is welded to the first fixed steel plate (2) and the second fixed steel plate (3).

9. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 1, characterized in that: The top surface of the steel bridge deck pavement layer (1) is fixed with a fixing sleeve (14), and a fixing nut (15) is rotatably provided on the top surface of the fixing sleeve (14). The bottom end of the steel plate body (4) is fixed with a fixing screw (16), and the fixing screw (16) is threadedly connected to the fixing nut (15).

10. The steel bridge deck pavement layer and steel plate shear stress adaptation structure according to claim 9, characterized in that: The top surface of the fixed sleeve (14) is provided with a bearing, and the fixed nut (15) is rotatably connected to the fixed sleeve (14) through the bearing.

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