Bridge deck structure of tunnel inverted arch trestle

Abstract

The utility model discloses a bridge deck structure of a tunnel inverted arch trestle. The bridge deck structure comprises a top plate, a plurality of U-shaped rib plates are arranged at the bottom of the top plate; the plurality of U-shaped rib plates are arranged in parallel; a plurality of trapezoidal rib plates are uniformly distributed between the adjacent U-shaped rib plates; a fixed rib plate is arranged at the bottom of the trapezoidal rib plate; and a first mounting hole is formed in the fixed rib plate. The bridge deck slab structure has high bearing capacity, the weight of the bridge deck slab can be effectively reduced on the premise that structural safety is guaranteed, meanwhile, the U-shaped rib plates have high stability, deformation and damage caused by external loads can be effectively resisted, the use requirements of various complex working conditions and severe environments in a tunnel are met, and the service life of the bridge deck slab structure is prolonged. And the structure is simple, mass processing and manufacturing are easy, and the production cost can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction technical field more specifically, it is bridge deck structure of tunnel inverted arch trestle. BACKGROUND

[0002] The bridge deck structure of the existing tunnel inverted arch trestle has the following shortcomings: the bridge deck structure of the existing tunnel trestle is mainly H-shaped steel (I-shaped steel) structure, in order to facilitate the passage engineering vehicle, welding threaded steel is laid on it.The overall structure of the bridge deck is complex, the weight is relatively large, the sinking deflection is relatively large when passing, the stability is poor, and it is easy to deform. INVENTION CONTENTS

[0003] Therefore, the utility model provides a bridge deck structure of tunnel inverted arch trestle, which aims to solve the problems in the prior art.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme:

[0005] A bridge deck structure of tunnel inverted arch trestle, comprising: a top plate; the bottom of the top plate is provided with a plurality of U-shaped rib plates; a plurality of the U-shaped rib plates are arranged in parallel; a plurality of trapezoidal rib plates are uniformly distributed between adjacent U-shaped rib plates; the bottom of the trapezoidal rib plate is provided with a fixed rib plate; a first mounting hole is formed in the fixed rib plate.

[0006] Preferably, the U-shaped rib plate is fixedly connected to the bottom of the top plate in a welding manner.

[0007] Preferably, the trapezoidal rib plate and the fixed rib plate are an integral structure.

[0008] Preferably, the top of the trapezoidal rib plate is welded to the bottom of the top plate; the two sides of the trapezoidal rib plate are welded to the outer side surfaces of the corresponding U-shaped rib plates; and the two sides of the fixed rib plate are welded to the outer side surfaces of the corresponding U-shaped rib plates.

[0009] Preferably, a second mounting hole is formed in the trapezoidal rib plate.

[0010] Preferably, the thickness of the top plate is 5 mm.

[0011] Preferably, the thickness of the U-shaped rib plate is 5 mm.

[0012] Preferably, the thicknesses of the trapezoidal rib plate and the fixed rib plate are both 5 mm.

[0013] The utility model has the following technical effects compared with the prior art:

[0014] 1) The bridge deck structure of the utility model has high bearing capacity, which can effectively reduce the weight of the bridge deck under the premise of ensuring the safety of the structure.

[0015] 2) The cross-sectional shape of the U-shaped rib plate in the utility model has high stability, can effectively resist deformation and damage caused by external load, and meets the use requirements under various complex working conditions and severe environments in the tunnel.

[0016] 3) The cross-sectional shape of the U-shaped rib plate in the utility model is simple, easy to mass process and manufacture, and can greatly reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is an axonometric view of the bridge deck plate structure of the tunnel inverted arch trestle of the utility model;

[0018] Figure 2 is a bottom view of the bridge deck plate structure of the tunnel inverted arch trestle of the utility model;

[0019] Figure 3 is a schematic view of the U-shaped rib plate;

[0020] Figure 4 is a front view of the trapezoidal rib plate and the fixed rib plate;

[0021] Figure 5 is a side view of the trapezoidal rib plate and the fixed rib plate;

[0022] Figure 6 is a bottom view of the trapezoidal rib plate and the fixed rib plate;

[0023] In the drawing: 1, top plate; 2, U-shaped rib plate; 3, trapezoidal rib plate; 4, fixed rib plate; 5, first mounting hole; 6, second mounting hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] EMBODIMENT

[0026] WITH REFERENCE TO Figures 1-6The utility model discloses a tunnel inverted arch trestle's bridge deck plate structure, include: roof 1, the roof 1 bottom is equipped with a plurality of parallelly arranged U type rib plate 2, through the shape characteristics of U type rib plate 2 itself, can reduce the deformation and vibration of bridge deck plate under the action of vehicle load or other load, increase structural strength and stability, the adjacent U type rib plate 2 between evenly has a plurality of trapezoidal rib plate 3, trapezoidal rib plate 3 bottom is equipped with fixed rib plate 4, is set up first mounting hole 5 on fixed rib plate 4, is used for with the crossbeam bolt connection of inverted arch trestle.

[0027] The bridge deck plate can be firmly connected with the trestle as a whole under various loads in the above technical scheme, the bridge deck plate structure is light in weight, low in processing difficulty and cost while meeting the structural requirements, and the balance between economic benefits and social benefits of tunnel construction is realized.

[0028] In the embodiment, the U-shaped rib plate 2 is fixedly connected to the bottom of the top plate 1 in a welding manner.

[0029] In the embodiment, the trapezoidal rib plate 3 and the fixed rib plate 4 are an integral structure.

[0030] In the embodiment, the trapezoidal rib plate 3 is welded to the bottom of the top plate 1, the two sides of the trapezoidal rib plate 3 are welded to the outer side surfaces of the corresponding U-shaped rib plates 2, and the two sides of the fixed rib plate 4 are welded to the outer side surfaces of the corresponding U-shaped rib plates 2.

[0031] In the embodiment, the second mounting hole 6 is formed in the trapezoidal rib plate 3 and is used for bolt connection with the trapezoidal rib plate 3 in the adjacent bridge deck plate structure.

[0032] In the embodiment, the thickness of the top plate 1 is 5 mm.

[0033] In the embodiment, the thickness of the U-shaped rib plate 2 is 5 mm.

[0034] In the embodiment, the U-shaped rib plate 2 is formed by one-time stamping of a Q355 steel plate.

[0035] In the embodiment, the thicknesses of the trapezoidal rib plate 3 and the fixed rib plate 4 are both 5 mm.

[0036] In use, the first mounting hole 5 in the fixed rib plate 4 is connected with the crossbeam between the trestle main beams, and the engineering vehicle can be kept firm and stable when passing through the tunnel inverted arch trestle.

[0037] The bridge deck slab structure has high bearing capacity, can effectively reduce the weight of the bridge deck slab under the premise of ensuring the safety of the structure, the cross-sectional shape of the U-shaped rib slab has high stability, can effectively resist deformation and damage caused by external load, meets the use requirements under various complex working conditions and severe environments in the tunnel, and the cross-sectional shape of the U-shaped rib slab is simple, easy to mass process and manufacture, and can greatly reduce the production cost.

[0038] The above is only the preferred embodiment of the present application, and does not limit the technical scope of the present application in any way, so any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.

Claims

1. A bridge deck structure for a tunnel invert viaduct, characterised in that, Include: The top plate (1); the bottom of the top plate (1) is provided with a plurality of U-shaped rib plates (2); a plurality of U-shaped rib plates (2) are arranged in parallel; a plurality of trapezoidal rib plates (3) are evenly distributed between adjacent U-shaped rib plates (2); the bottom of the trapezoidal rib plate (3) is provided with a fixed rib plate (4); the fixed rib plate (4) is provided with a first mounting hole (5); The top of the trapezoidal rib plate (3) is welded to the bottom of the top plate (1); the two sides of the trapezoidal rib plate (3) are welded to the outer side of the corresponding U-shaped rib plate (2); the two sides of the fixed rib plate (4) are welded to the outer side of the corresponding U-shaped rib plate (2).

2. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The U-shaped rib plate (2) is fixedly connected to the bottom of the top plate (1) by welding.

3. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The trapezoidal rib plate (3) and the fixed rib plate (4) are an integral structure.

4. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The trapezoidal rib plate (3) is provided with a second mounting hole (6).

5. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The thickness of the top plate (1) is 5mm.

6. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The thickness of the U-shaped rib plate (2) is 5mm.

7. A deck slab structure for a tunnel inverted arch viaduct according to claim 1, wherein The thickness of the trapezoidal rib plate (3) and the fixed rib plate (4) is 5mm.

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