VIADUCT STRUCTURE

Abstract

Provided is a viaduct structure. The viaduct structure consists of steel bridge columns, steel plate girders, a bridge deck bottom steel plate, bridge deck side steel plates and cement-gravel concrete, where the steel bridge columns, the steel plate girders and the bridge deck bottom steel plate are welded to one another to form the ceiling type steel architecture, the bridge deck side steel plates are welded to the bridge deck bottom steel plate, and the cement-gravel concrete is poured in a groove-like structure formed by the bridge deck side steel plates and the bridge deck bottom steel plate. The viaduct structure has the advantages of a firm structure, a thin bridge deck, the thin steel plate girders, a low height of the bridge deck, no plywoods required for pouring, convenient construction, low waste, a low material consumption, a low construction cost, a short construction period, etc.

Claims

1. A viaduct structure, consisting of steel bridge columns (1), steel plate girders (2), a bridge deck bottom steel plate (3), bridge deck side steel plates (4) and cement-gravel concrete (5), wherein the steel bridge columns (1), the steel plate girders (2), the bridge deck bottom steel plate (3) and the bridge deck side steel plates (4) are made of steel, the steel bridge columns (1) are lower portions of a viaduct, the steel bridge columns (1) support the steel plate girders and a bridge deck, the steel plate girders (2) are welded to upper portions of the steel bridge columns (1), a plurality of steel bridge columns (1) can be welded to a lower portion of one long steel plate girder (2), the steel plate girders (2) are long, the steel plate girders (2) have a length the same as that of the viaduct, the steel plate girders (2) support the bridge deck above, upper portions of the steel plate girders (2) are welded to the bridge deck bottom steel plate (3), two steel plate girders (2) are located on a left side and a right side of the viaduct, the two steel plate girders (2) are welded at bottoms of a left side and a right side of the bridge deck bottom steel plate (3) respectively, a width of the bridge deck bottom steel plate (3) is that of the bridge deck, a length of the bridge deck bottom steel plate (3) is that of the viaduct, the bridge deck bottom steel plate (3) is sealed under the bridge deck, and can prevent cement slurry from flowing down when the cement-gravel concrete (5) above the bridge deck bottom steel plate (3) is poured, the bridge deck bottom steel plate (3) is welded to the steel plate girders (2) and the steel bridge columns (1), to form a ceiling type steel architecture that is firm and can bear the pressure from the bridge deck and numerous vehicles above, the bridge deck side steel plates (4) are welded to upper portions of two sides of the bridge deck bottom steel plate (3), the bridge deck side steel plates (4) have a length the same as that of the viaduct, a groove-like structure is formed by the bridge deck side steel plates (4) on a left side and a right side and the bridge deck bottom steel plate (3), the cement-gravel concrete (5) is arranged in the groove-like structure above the bridge deck bottom steel plate (3), the bridge deck side steel plates (4) can prevent cement slurry from flowing out when the cement-gravel concrete (5) is poured, and the cement-gravel concrete (5), the bridge deck side steel plates (4) and the bridge deck bottom steel plate (3) are coagulated together and bonded firmly.

2. The viaduct structure of claim 1, wherein a layer of asphalt concrete is laid on the cement-gravel concrete (5).

3. The viaduct structure of claim 2, wherein the cement-gravel concrete (5) can be replaced with cement-lava concrete.

4. The viaduct structure of claim 3, wherein a layer of cement-lava concrete is laid under the cement-gravel concrete while the layer of asphalt concrete is laid on the cement-gravel concrete (5).

5. The viaduct structure of claim 1, wherein the bridge deck sinks, and the bridge deck is flush with a ground, such that an underground passage becomes a tunnel, and a view of the ground is not affected.

6. The viaduct structure of claim 1, wherein the steel bridge columns (1) are replaced with bridge column steel plates, the steel plates are long, and thus also can support the steel plate girders (2) and the bridge deck, and moreover, a room structure can be formed by the steel plates under a bridge, and a space under the bridge can be used for many purposes.

7. The viaduct structure of claim 6, wherein the bridge column steel plates are of a hollow bore structure.

8. A viaduct structure of claim 1, wherein the steel bridge columns (1), the steel plate girders (2), the bridge deck bottom steel plate (3) and the bridge deck side steel plates (4) are of hollow bore structures.

9. A viaduct structure, consisting of steel bridge columns (1) and a bridge deck bottom steel plate (3), wherein the steel bridge columns (1) and the bridge deck bottom steel plate (3) are made of steel, the steel bridge columns (1) are lower portions of a viaduct, the steel bridge columns (1) support the bridge deck bottom steel plate (3), a width of the bridge deck bottom steel plate (3) is that of a bridge deck, a length of the bridge deck bottom steel plate (3) is that of the viaduct, and the bridge deck bottom steel plate (3) is welded to the steel bridge columns (1), to form a ceiling type steel architecture that is firm and can bear the pressure from the bridge deck and numerous vehicles above.

10. The viaduct structure of claim 9, further comprising bridge deck side steel plates (4), wherein the bridge deck side steel plates (4) are made of steel, the bridge deck side steel plates (4) are welded to upper portions of two sides of the bridge deck bottom steel plate (3), the bridge deck side steel plates (4) have a length the same as that of the viaduct, and a groove-like structure is formed by the bridge deck side steel plates (4) on a left side and a right side and the bridge deck bottom steel plate (3).

11. The viaduct structure of claim 10, further comprising cement-gravel concrete (5), wherein the cement-gravel concrete (5) is poured in the groove-like structure formed by the bridge deck side steel plates (4) and the bridge deck bottom steel plate (3), and the bridge deck side steel plates (4) can prevent cement slurry from flowing out when the cement-gravel concrete (5) is poured, and the cement-gravel concrete (5), the bridge deck side steel plates (4) and the bridge deck bottom steel plate (3) are coagulated together and bonded firmly.

12. The viaduct structure of claim 11, wherein a layer of asphalt concrete is laid on the cement-gravel concrete (5).

13. The viaduct structure of claim 12, wherein the cement-gravel concrete (5) can be replaced with cement-lava concrete.

14. The viaduct structure of claim 12, wherein a layer of cement-lava concrete is laid under the cement-gravel concrete while the layer of asphalt concrete is laid on the cement-gravel concrete (5).

15. The viaduct structure of claim 9, wherein the bridge deck sinks, and the bridge deck is flush with a ground, such that an underground passage becomes a tunnel, and a view of the ground is not affected.

16. The viaduct structure of claim 9, wherein the steel bridge columns (1) are replaced with bridge column steel plates, the steel plates are long, and thus also can support the bridge deck, and moreover, a room structure can be formed by the steel plates under a bridge, and a space under the bridge can be used for many purposes.

17. The viaduct structure of claim 16, wherein the bridge column steel plates are of a hollow bore structure.

18. The viaduct structure of claim 9, wherein the steel bridge columns (1) and the bridge deck bottom steel plate (3) are of hollow bore structures.

19. The viaduct structure of claim 10, wherein the bridge deck side steel plates (4) are of a hollow bore structure.

20. The viaduct structure of claim 18, wherein the steel bridge columns (1) are of a honeycomb hollow structure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a longitudinal structural diagram (Example 1) of a viaduct.

[0021] FIG. 2 is a transverse structural diagram (Example 1) of the viaduct.

[0022] FIG. 3 is a transverse structural diagram (Example 2) of the viaduct.

[0023] FIG. 4 is a transverse structural diagram (Example 3) of the viaduct.

[0024] FIG. 5 is a transverse structural diagram (Example 4) of the viaduct.

[0025] In the figures: 1. steel bridge column; 2. steel plate girder; 3. bridge deck bottom steel plate; 4. bridge deck side steel plate; and 5. cement-gravel concrete.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Example 1: a viaduct structure consists of steel bridge columns 1, steel plate girders 2, a bridge deck bottom steel plate 3, bridge deck side steel plates 4 and cement-gravel concrete 5, where the steel bridge columns 1, the steel plate girders 2, the bridge deck bottom steel plate 3 and the bridge deck side steel plates 4 are made of steel, the steel bridge columns 1 are lower portions of a viaduct, the steel bridge columns 1 support the steel plate girders and a bridge deck, the steel plate girders 2 are welded to upper portions of the steel bridge columns 1, a plurality of steel bridge columns 1 may be welded to a lower portion of one long steel plate girder 2, the steel plate girders 2 are thin and long, the steel plate girders 2 have a length the same as that of the viaduct, the steel plate girders 2 support the bridge deck above, upper portions of the steel plate girders 2 are welded to the bridge deck bottom steel plate 3, two steel plate girders 2 are located on a left side and a right side of the viaduct, the two steel plate girders 2 are welded at bottoms of a left side and a right side of the bridge deck bottom steel plate 3 respectively, a width of the bridge deck bottom steel plate 3 is that of the bridge deck, a length of the bridge deck bottom steel plate 3 is that of the viaduct, the bridge deck bottom steel plate 3 is sealed under the bridge deck, and may prevent cement slurry from flowing down when the cement-gravel concrete 5 above the bridge deck bottom steel plate 3 is poured, the bridge deck bottom steel plate 3 is welded to the steel plate girders 2 and the steel bridge columns 1, to form a ceiling type steel architecture that is firm and may bear the pressure from the bridge deck and numerous vehicles above, the bridge deck side steel plates 4 are welded to upper portions of two sides of the bridge deck bottom steel plate 3, the bridge deck side steel plates 4 have a length the same as that of the viaduct, a groove-like structure is formed by the bridge deck side steel plates 4 on a left side and a right side and the bridge deck bottom steel plate 3, the cement-gravel concrete 5 is arranged in the groove-like structure above the bridge deck bottom steel plate 3, the bridge deck side steel plates 4 may prevent cement slurry from flowing out when the cement-gravel concrete 5 is poured, and the cement-gravel concrete 5, the bridge deck side steel plates 4 and the bridge deck bottom steel plate 3 are coagulated together and bonded firmly.

[0027] Example 2: a viaduct structure consists of steel bridge columns 1 and a bridge deck bottom steel plate 3, where the steel bridge columns 1 and the bridge deck bottom steel plate 3 are made of steel, the steel bridge columns 1 are lower portions of a viaduct, the steel bridge columns 1 support the bridge deck bottom steel plate 3, a width of the bridge deck bottom steel plate 3 is that of a bridge deck, a length of the bridge deck bottom steel plate 3 is that of the viaduct, and the bridge deck bottom steel plate 3 is welded to the steel bridge columns 1, to form a ceiling type steel architecture that is firm and may bear the pressure from the bridge deck and numerous vehicles above.

[0028] Example 3: a viaduct structure consists of steel bridge columns 1, a bridge deck bottom steel plate 3 and bridge deck side steel plates 4, where the steel bridge columns 1, the bridge deck bottom steel plate 3 and the bridge deck side steel plates 4 are made of steel, the steel bridge columns 1 are lower portions of a viaduct, the steel bridge columns 1 support a bridge deck, upper portions of the steel bridge columns 1 are welded to the bridge deck bottom steel plate 3, a width of the bridge deck bottom steel plate 3 is that of the bridge deck, a length of the bridge deck bottom steel plate 3 is that of the viaduct, the bridge deck bottom steel plate 3 is welded to the steel bridge columns 1 to form a ceiling type steel architecture that is strong and may bear the pressure from the bridge deck and numerous vehicles above, the bridge deck side steel plates 4 are welded to upper portions of two sides of the bridge deck bottom steel plate 3, and the bridge deck side steel plates 4 have the length the same as that of the viaduct, and a groove-like structure is formed by the bridge deck side steel plates 4 on the left side and the right side and the bridge deck bottom steel plate 3.

[0029] Example 4: a viaduct structure consists of steel bridge columns 1, a bridge deck bottom steel plate 3, bridge deck side steel plates 4 and cement-gravel concrete 5, where the steel bridge columns 1, the bridge deck bottom steel plate 3 and the bridge deck side steel plates 4 are made of steel, the steel bridge columns 1 are lower portions of a viaduct, the steel bridge columns 1 support a bridge deck above, and are welded to the bridge deck bottom steel plate 3, a width of the bridge deck bottom steel plate 3 is that of the bridge deck, a length of the bridge deck bottom steel plate 3 is that of the viaduct, the bridge deck bottom steel plate 3 is sealed under the bridge deck, and may prevent cement slurry from flowing down when the cement-gravel concrete 5 above the bridge deck bottom steel plate 3 is poured, the bridge deck bottom steel plate 3 is welded to the steel bridge columns 1, to form a ceiling type steel architecture that is firm and may bear the pressure from the bridge deck and numerous vehicles above, the bridge deck side steel plates 4 are welded to upper portions of two sides of the bridge deck bottom steel plate 3, the bridge deck side steel plates 4 have a length the same as that of the viaduct, a groove-like structure is formed by the bridge deck side steel plates 4 on a left side and a right side and the bridge deck bottom steel plate 3, the cement-gravel concrete 5 is arranged in the groove-like structure above the bridge deck bottom steel plate 3, the bridge deck side steel plates 4 may prevent cement slurry from flowing out when the cement-gravel concrete 5 is poured, and the cement-gravel concrete 5, the bridge deck side steel plates 4 and the bridge deck bottom steel plate 3 are coagulated together and bonded firmly.

[0030] According to the several above examples:

[0031] Furthermore, textured steel plates are used as the bridge deck bottom steel plate 3 and the bridge deck side steel plates 4, and textures protrude into the cement-gravel concrete 5. Thus, the cement-gravel concrete 5 and the textured steel plates are coagulated together, and are firm.

[0032] Furthermore, reinforcing steel bars are welded on the bridge deck bottom steel plate 3, and the reinforcing steel bars protrude into the cement-gravel concrete 5. Thus, the cement-gravel concrete 5 and the bridge deck bottom steel plate 3 and the bridge deck side steel plates 4 are coagulated together, and are firm.

[0033] Furthermore, a layer of asphalt concrete is laid on the cement-gravel concrete 5. Thus, the cement-gravel concrete 5 on the bridge deck is not prone to crack. In order to reduce weight, the cement-gravel concrete may be replaced with cement-lava concrete; and a layer of cement-lava concrete may also be laid under the cement-gravel concrete.

[0034] Furthermore, guard rails are welded on the bridge deck bottom steel plate 3. Thus, the guard rails are firm.

[0035] Furthermore, guard rails are welded on the bridge deck side steel plates 4. Thus, the guard rails are firm.

[0036] Furthermore, the bridge deck sinks, and the bridge deck is flush with a ground, such that an underground passage becomes a tunnel, and a view of the ground is not affected.

[0037] Furthermore, the steel bridge columns 1 are replaced with bridge column steel plates, the steel plates are long, and thus also may support the steel plate girders 2 and the bridge deck, and moreover, a room structure may be formed by the steel plates under a bridge, and a space under the bridge may be used for many purposes.

[0038] Furthermore, after the steel bridge columns are replaced with the bridge column steel plates, ground steel plates are laid under the bridge column steel plates, and the ground steel plates are welded to the bridge column steel plates to improve firmness of the bridge column steel plates.

[0039] Furthermore, piles are arranged at bottoms of the ground steel plates below the bridge column steel plates, and the piles may prevent the ground steel plates from sinking.

[0040] Furthermore, the steel bridge columns 1, the steel plate girders 2, the bridge deck bottom steel plate 3, the bridge deck side steel plates 4 and the bridge column steel plates are of hollow bore structures.

[0041] Furthermore, the steel bridge columns 1 are of a honeycomb hollow bore structure.