Steel box girder trestle crossing busy channel

Abstract

The utility model belongs to the technical field of trestles, and particularly relates to a steel box girder trestle crossing a busy channel. Comprising a steel pipe pile foundation, a supporting structure, a steel box girder and an anti-collision column. The steel box beam frame is arranged between the supporting structures at the top of the steel pipe pile foundation; the anti-collision columns are arranged around the steel pipe pile foundation, the supporting fence is connected between the anti-collision columns, the supporting fence surrounds the steel pipe pile foundation by a circle, and the supporting fence is located above the highest navigable water level. Steel box girders are lifted to the lower portion through the steel pipe pile foundations to allow ships to pass through, anti-collision columns and supporting fences are arranged on the peripheries of the steel pipe pile foundations to form a protection system, and the situation that ships collide with the steel pipe pile foundations to damage the steel box girder trestle is avoided; the steel box girder and the supporting structure are mechanically connected, the supporting structure and the steel pipe pile are mechanically connected, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of trestles, and particularly relates to a steel box girder trestle spanning a busy waterway. Background Technique

[0002] In the technical field of trestles, when it comes to the situation of spanning a waterway, it is usually disconnected at the waterway or a lifting trestle is adopted. When a ship passes through, the lifting trestle needs to be lifted, and the passage will be interrupted. The utility model adopts a steel box girder trestle to solve such problems. Content of the Utility Model

[0003] An object of the utility model is to solve at least the above problems and provide at least the advantages described later.

[0004] The utility model provides the following technical solution: a steel box girder trestle spanning a busy waterway, including steel pipe pile foundations, a supporting structure, a steel box girder and anti-collision columns; the steel box girder is erected between the supporting structures on the top of the steel pipe pile foundations; the anti-collision columns are arranged around the steel pipe pile foundations, and a supporting fence is connected between the anti-collision columns. The supporting fence surrounds the steel pipe pile foundation in a circle and is located above the highest navigable water level.

[0005] Further, the steel pipe pile foundation includes steel pipe piles arranged in a matrix, the steel pipe piles are filled with concrete, and the two-by-two steel pipe piles in the transverse and longitudinal bridge directions are connected by a truss connecting system.

[0006] Further, the anti-collision columns are arranged on both sides of the steel pipe pile foundation along the waterway passing direction, and the anti-collision columns on both sides of the steel pipe pile foundation are arranged at points where the middle is in the front and the two sides are gradually in the back.

[0007] Further, the supporting structure includes a reinforced concrete top cap, a bearing pad stone, a steel box girder bearing and an anti-falling beam stop block. The reinforced concrete top cap is arranged on the top of the steel pipe pile foundation, the steel box girder bearing and the anti-falling beam stop block are arranged on the top of the reinforced concrete top cap, the steel box girder bearing is arranged on the top of the bearing pad stone, and the steel box girder bearing and the bearing pad stone support the steel box girder at the bottom; the anti-falling beam stop blocks limit the offset of the steel box girder on both side faces of the steel box girder.

[0008] Further, a bottom steel plate is arranged on the bottom surface of the reinforced concrete top cap; a flange plate is arranged on the top of the steel pipe pile, and embedded bolts corresponding one by one to the through holes on the flange plate are pre-embedded at the bottom of the reinforced concrete top cap. The embedded bolts pass through the through holes on the flange plate and are bolted to the flange plate.

[0009] Furthermore, the support fence includes a short-side support fence and a long-side support fence. The short-side support fence includes a first cross brace and a first diagonal brace. Both ends of the first cross brace are connected to the anti-collision columns, and the first diagonal brace is connected between the connection nodes of the first cross brace and the anti-collision columns. The long-side support fence includes a second cross brace, a second diagonal brace, and a vertical brace. Both ends of the second cross brace are connected to the anti-collision columns, the vertical brace is connected between two upper and lower second cross braces, and the second diagonal brace is connected between the connection nodes of the second cross brace and the anti-collision columns or the vertical brace.

[0010] Compared with the prior art, the advantages of the present utility model are as follows:

[0011] A steel box girder trestle for crossing a busy waterway provided by the present utility model raises the steel box girder above the water surface by means of a steel pipe pile foundation to allow ships to pass beneath. Anti-collision columns and support fences are arranged around the steel pipe pile foundation to form a protection system, preventing ships from hitting the steel pipe pile foundation and causing damage to the steel box girder trestle. Both the connection between the steel box girder and the support structure and the connection between the support structure and the steel pipe piles are mechanical connections, facilitating installation and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front view schematic diagram of the steel box girder trestle for crossing a busy waterway;

[0013] Figure 2 is a top view schematic diagram of the steel box girder trestle for crossing a busy waterway;

[0014] Figure 3 is a schematic diagram of the support structure;

[0015] Figure 4 is a schematic diagram of the short-side support fence;

[0016] Figure 5 is a schematic diagram of the long-side support fence;

[0017] Figure 6 is a top view of the support fence.

[0018] In the figures: 1 - steel box girder; 2 - support structure; 2.1 - reinforced concrete top cap; 2.2 - bearing padstone; 2.3 - steel box girder bearing; 2.4 - anti-falling beam stop block; 2.5 - bottom steel plate; 2.6 - embedded bolt; 2.7 - shear stud; 3 - steel pipe pile; 3.1 - flange plate; 4 - truss connection system; 5 - anti-collision column; 6 - first cross brace; 7 - first diagonal brace; 8 - second cross brace; 9 - second diagonal brace; 10 - vertical brace; X - highest navigable water level. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] As Figure 1 , Figure 2 shown: A steel box girder trestle spanning a busy waterway includes steel pipe pile foundations, a support structure 2, a steel box girder 1, and anti-collision columns 5; the steel box girder 1 is erected between the support structures 2 at the top of the steel pipe pile foundations; the anti-collision columns 5 are arranged around the steel pipe pile foundations, and a support fence is connected between the anti-collision columns 5. The support fence surrounds the steel pipe pile foundations in a circle and is located above the highest navigable water level.

[0021] The steel pipe pile foundation includes steel pipe piles 3 arranged in a matrix. The steel pipe piles 3 are constructed by the vibration sinking method. The steel pipe piles 3 are filled with concrete. The steel pipe piles 3 in the transverse and longitudinal directions are connected by a truss connection system 4. The steel pipe piles 3 support each other through the truss connection system 4 to improve the overall strength. The truss connection system 4 is composed of several steel pipes.

[0022] This bridge is a temporary structure, and an anti-collision system is set according to the impact force of 500t passing ships in the current situation. The anti-collision columns 5 are arranged on both sides of the steel pipe pile foundation along the waterway passing direction. The anti-collision columns 5 on both sides of the steel pipe pile foundation are arranged at points where the middle is in the front and the two sides gradually move backward.

[0023] As Figure 4 , Figure 5 , Figure 6 shown: The support fence includes a short-side support fence and a long-side support fence. The short-side support fence includes a first cross brace 6 and a first diagonal brace 7. Both ends of the first cross brace 6 are connected to the anti-collision column 5. The first diagonal brace 7 is connected between the connection nodes of the first cross brace 6 and the anti-collision column 5. The long-side support fence includes a second cross brace 8, a second diagonal brace 9, and a vertical brace 10. Both ends of the second cross brace 8 are connected to the anti-collision column 5. The vertical brace 10 is connected between the two upper and lower second cross braces 8. The second diagonal brace 9 is connected between the connection nodes of the second cross brace 9 and the anti-collision column 5 or the vertical brace 10. The first cross brace 6, the first diagonal brace 7, the second cross brace 8, the second diagonal brace 9, and the vertical brace 10 are all steel pipe members.

[0024] As Figure 3As shown in the figure: The support structure 2 includes a reinforced concrete top cap 2.1, a bearing padstone 2.2, a steel box girder support 2.3, and a beam fall prevention block 2.4. The reinforced concrete top cap 2.1 is arranged on the top of the steel pipe pile foundation. The steel box girder support 2.2 and the beam fall prevention block 2.4 are arranged on the top of the reinforced concrete top cap 2.1. The steel box girder support 2.3 is arranged on the top of the bearing padstone 2.2. The steel box girder support 2.2 and the bearing padstone 2.1 support the steel box girder 1 at the bottom. The beam fall prevention block 2.4 limits the offset of the steel box girder 1 on both side surfaces of the steel box girder 1. The steel box girder 1 in the transverse bridge direction is limited by the beam fall prevention blocks 2.4 on both sides, and the steel box girder 1 is limited to each other before and after in the longitudinal bridge direction.

[0025] The reinforced concrete top cap 2.1 adopts a precast structure. A bottom steel plate 2.5 is arranged on the bottom surface of the reinforced concrete top cap 2.1. The bottom steel plate 2.5 is welded and connected with shear studs 2.7 embedded in the reinforced concrete top cap 2.1. Before pouring the reinforced concrete top cap 2.1, the shear studs 2.7 are first welded on the bottom steel plate 2.5, and the bottom steel plate 2.5 welded with the shear studs 2.7 is used as the bottom formwork of the reinforced concrete top cap 2.1.

[0026] A flange plate 3.1 is arranged on the top of the steel pipe pile 3. Embedded bolts 2.6 corresponding to the through holes on the flange plate 3.1 one by one are embedded at the bottom of the reinforced concrete top cap 2.1. The embedded bolts 2.6 pass through the through holes on the flange plate 3.1 and are bolted to the flange plate 5. The reinforced concrete top cap 2.1 and the steel pipe pile 3 are connected by bolts, which is convenient for disassembly and assembly.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel box girder trestle spanning a busy waterway, characterized in that: It includes a steel pipe pile foundation, a support structure (2), a steel box girder (1), and anti-collision columns (5); the steel box girder (1) is erected between the support structures (2) on the top of the steel pipe pile foundation; the anti-collision columns (5) are arranged around the steel pipe pile foundation, and a support fence is connected between the anti-collision columns (5). The support fence surrounds the steel pipe pile foundation in a circle and is located above the highest navigable water level.

2. The steel box girder trestle spanning a busy waterway according to claim 1, wherein: The steel pipe pile foundation described above includes steel pipe piles (3) arranged in a matrix, and the steel pipe piles (3) are filled with concrete. The two-by-two steel pipe piles (3) in the transverse and longitudinal directions of the bridge are connected by a truss connection system (4).

3. The steel box girder trestle spanning a busy waterway according to claim 2, characterized in that: The anti-collision columns (5) are arranged on both sides of the steel pipe pile foundation along the direction of waterway passage, and the anti-collision columns (5) on both sides of the steel pipe pile foundation are arranged at points where the middle is in the front and the two sides gradually move backward.

4. A steel box girder trestle spanning a busy waterway according to claim 2 or 3, characterized in that: The support structure (2) described above includes a reinforced concrete top cap (2.1), a bearing pad stone (2.2), a steel box girder bearing (2.3), and an anti-falling beam stop block (2.4). The reinforced concrete top cap (2.1) is set on the top of the steel pipe pile foundation, and the steel box girder bearing (2.3) and the anti-falling beam stop block (2.4) are set on the top of the reinforced concrete top cap (2.1). The steel box girder bearing (2.3) is set on the top of the bearing pad stone (2.2), and the steel box girder bearing (2.3) and the bearing pad stone (2.2) support the steel box girder (1) at the bottom; the anti-falling beam stop block (2.4) restricts the offset of the steel box girder (1) on both sides of the steel box girder (1).

5. A steel box girder trestle spanning a busy waterway according to claim 4, characterized in that: A bottom steel plate (2.5) is provided on the bottom surface of the reinforced concrete top cap (2.1); a flange plate (3.1) is provided on the top of the steel pipe pile (3), and embedded bolts (2.6) corresponding one-to-one to the through holes on the flange plate (3.1) are pre-embedded at the bottom of the reinforced concrete top cap (2.1). The embedded bolts (2.6) pass through the through holes on the flange plate (3.1) and are bolted to the flange plate (3.1).

6. A steel box girder trestle spanning a busy waterway according to claim 3, characterized in that: The support fence described above includes a short-side support fence and a long-side support fence. The short-side support fence includes a first cross brace (6) and a first diagonal brace (7). The two ends of the first cross brace (6) are connected to the anti-collision columns (5), and the first diagonal brace (7) is connected between the connection nodes of the first cross brace (6) and the anti-collision columns (5); the long-side support fence includes a second cross brace (8), a second diagonal brace (9), and a vertical brace (10). The two ends of the second cross brace (8) are connected to the anti-collision columns (5), the vertical brace (10) is connected between the two upper and lower second cross braces (8), and the second diagonal brace (9) is connected between the connection nodes of the second cross brace (8) and the anti-collision columns (5) or the vertical brace (10).

Images