Subway-crossing double-layer steel box girder multi-layer supporting device

Abstract

A multi-layer supporting device of a subway-crossing double-layer steel box girder is characterized by comprising a cushion layer, a first supporting pipe arranged at the top of the cushion layer, a first distribution beam arranged at the top of the first supporting pipe, a bailey truss arranged at the top of the first distribution beam, a second distribution beam arranged at the top of the bailey truss, and a lower-layer steel box girder arranged at the top of the second distribution beam. Second supporting pipes are arranged at the tops of the lower-layer steel box girders, third distribution girders are arranged at the tops of the second supporting pipes, and upper-layer steel box girders are arranged at the tops of the third distribution girders. The problems that in the prior art, stability is poor, and moving and dismounting are not easy are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting devices, in particular to a multi-layer supporting device for a double-layer steel box girder across a subway. Background Art

[0002] The existing steel box girder installation construction support system generally adopts a steel pipe column lattice support, with a steel section set on the top of the column, and an adjustment pipe placed on the steel section to adjust the steel box girder elevation, and the bottom of the column is connected to the embedded parts on the top of the concrete cushion. This type of lattice support cannot be suspended in the air and needs a support point, and is generally used in combination with a concrete cushion. Therefore, it has the disadvantages of poor stability, difficulty in moving, difficulty in disassembly, and time-consuming and labor-intensive. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a multi-layer support device for a double-layer steel box girder across a subway to overcome the problems of poor stability, difficulty in movement and difficulty in disassembly existing in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multi-layer support device for a double-layer steel box girder across a subway, characterized in that it includes a cushion layer, a first support tube is arranged on the top of the cushion layer, a first distribution beam is arranged on the top of the first support tube, a Bailey frame is arranged on the top of the first distribution beam, a second distribution beam is arranged on the top of the Bailey frame, a lower-layer steel box girder is arranged on the top of the second distribution beam, a second support tube is arranged on the top of the lower-layer steel box girder, a third distribution beam is arranged on the top of the second support tube, and an upper-layer steel box girder is arranged on the top of the third distribution beam.

[0006] The first supporting tube and the second supporting tube are also connected to the connecting system.

[0007] The connection lines between the first support tube and the second support tube and the adjacent support tubes are arranged in a zigzag pattern.

[0008] The distances between the first supporting tubes and the second supporting tubes are equal.

[0009] Adjustment pipes are arranged between the lower steel box beam and the second distribution beam, and between the upper steel box beam and the third distribution beam.

[0010] The connection system is one of welding connection, bolt connection and high-strength bolt connection.

[0011] The cushion layer is connected with the embedded parts of the bearing platforms on both sides of the subway along the length of the bridge.

[0012] The first distribution beam, the second distribution beam and the third distribution beam are all made of I-beams or channel steels.

[0013] The lower steel box girder and the upper steel box girder are both composed of a plurality of box bodies, and adjusting pipes are arranged at the bottom of both sides of the connection of each box body.

[0014] The lower steel box girder and the upper steel box girder are both sleeved on two bridge piers.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] A multi-layer support device for a double-layer steel box girder across a subway includes a cushion layer, which is used to disperse and reduce the pressure and vibration on the bottom of the structure, ensure the stability of the support pipe and reduce damage to the ground; a first support pipe is arranged on the top of the cushion layer, and the support pipe is a main component for supporting a distribution beam. The position and number of the support pipes are determined according to the size and weight of the box beam and the geological conditions; a first distribution beam is arranged on the top of the support pipe, and the distribution beam is an important component for evenly transferring the weight from the upper structure to the support pipe; a Bailey frame is arranged on the first distribution beam, and the Bailey frame is used to support and fix the box beam, and is composed of a plurality of prefabricated Bailey units, and can be quickly erected and disassembled; a second distribution beam is arranged on the top of the Bailey frame, and the Bailey frame is used here to support the second distribution beam , and provide additional stability and rigidity. A lower steel box girder is arranged on the top of the second distribution beam, which is the lower structure in the double-layer steel box girder and is used to support subway tracks or other transportation facilities. The design of the lower steel box girder needs to take into account the load, deformation requirements and interaction with other structural components it bears. The second distribution beam distribution beam is an important component for evenly transferring the weight from the upper structure to the support tube. A second support tube is arranged on the top of the lower steel box girder, and a third distribution beam is arranged on the top of the second support tube. An upper steel box girder is arranged on the top of the third distribution beam, which is the upper structure in the double-layer steel box girder and may be used to support other transportation facilities. The design of the upper steel box girder also needs to take into account the load, deformation requirements and interaction with the lower steel box girder and the supporting structure. This multi-layer support device for the double-layer steel box girder across the subway ensures the stability and safety of the double-layer steel box girder above the subway through reasonable structural design.

[0017] Furthermore, the first support tube and the second support tube are also connected to a connecting system, which is a key part to ensure the stability and integrity of the entire support device. The specific design and construction of the connecting system will vary according to actual engineering requirements. It is used to connect the vertical support tubes to each other. Such a connection method can enhance the overall stability between the support tubes and prevent twisting or deformation during the force application process.

[0018] Furthermore, the connection system between the first support tube and the adjacent support tubes of the second support tube is distributed in a zigzag pattern. The Z-shaped connection method can increase the overall stiffness and stability of the support structure. The Z-shaped connection system can effectively disperse and transfer the load from the upper structure and evenly distribute it to multiple support tubes. This distribution method can reduce the risk of structural deformation or damage caused by excessive force at a single point, and improve the bearing capacity of the entire support system.

[0019] Furthermore, the distance between each support tube is equal, which means that the support system has a uniform force distribution. Such a design can ensure the stability and balance of the structure in different directions. The equidistantly distributed support tubes can also simplify the construction and installation process and improve construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] In the attached drawings: 1 is a cushion layer, 2 is a first supporting tube, 3 is a connecting system, 4 is a first distribution beam, 5 is a Bailey frame, 6 is an adjusting tube, 7 is a lower steel box beam, 8 is an upper steel box beam, 9 is a second supporting tube, 10 is a second distribution beam, and 11 is a third distribution beam. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1 A multi-layer support device for a double-layer steel box girder across a subway comprises a cushion layer 1, which adopts three-piece HM588×300 steel as the cushion layer 1, a first support tube 2 is arranged on the top of the cushion layer 1, a φ800×16 steel tube is adopted as the first support tube 2, a first distribution beam 4 is arranged on the top of the first support tube 2, a double-piece I-56b steel is adopted as the first distribution beam 4, a Bailey frame 5 is arranged on the top of the first distribution beam 4, a second distribution beam 10 is arranged on the top of the Bailey frame 5, HM440×300 steel is adopted as the distribution beam, a lower steel box girder 7 is arranged on the top of the second distribution beam 10, a second support tube 9 is arranged on the top of the lower steel box girder 7, a third distribution beam 11 is arranged on the top of the second support tube 9, and an upper steel box girder 8 is arranged on the top of the third distribution beam 11; the Bailey frame is a light and detachable steel structure frame, which is often used in bridges, temporary facilities and other projects. The Bailey frame is connected up and down by clamps. A group of Bailey frames has 39 pieces in total, with a total weight of about 12t.

[0029] The first support tube 2 and the second support tube 9 are also connected to a connection system (3), which uses I14 steel as the connection system.

[0030] The connection system 3 between the first support tube 2 and the adjacent support tubes of the second support tube 9 is distributed in a Z shape. The Z-shaped connection method can increase the overall stiffness and stability of the support structure. The Z-shaped connection system can effectively disperse and transfer the load from the upper structure and evenly distribute it to multiple support tubes. This distribution method can reduce the risk of structural deformation or damage caused by excessive force at a single point, and improve the bearing capacity of the entire support system.

[0031] The distance between each support tube in the first support tube 2 and the second support tube 9 is equal, which means that the support system has a uniform force distribution. Such a design can ensure the stability and balance of the structure in different directions. The equidistantly distributed support tubes can also simplify the construction and installation process and improve construction efficiency and quality.

[0032] Adjustment pipes 6 are provided between the lower steel box girder 7 and the second distribution beam 10 and between the upper steel box girder 8 and the third distribution beam 11 to fine-tune the elevation of the steel box girder.

[0033] The connection system 3 is welding, and the welding foot size is not less than 8mm.

[0034] The cushion layer 1 is welded to the embedded parts of the bearing platforms on both sides of the subway along the length of the bridge. The embedded parts are of a size of 16×500×1000mm and are equipped with 4 M20×160 expansion bolts.

[0035] The first distribution beam 4 , the second distribution beam 10 and the third distribution beam 11 are all made of I-beams or channel steels.

[0036] The lower steel box girder 7 and the upper steel box girder 8 are both composed of a plurality of boxes, and an adjusting pipe 6 is provided at the bottom of both sides of the connection of each box.

[0037] The lower steel box girder 7 and the upper steel box girder 8 are both mounted on two bridge piers, which can further improve the stability and bearing capacity of the bridge structure and ensure the safety and reliability of the bridge during use.

[0038] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A multi-layer support device for double-layer steel box beams across a subway, characterized in that: The invention comprises a cushion layer (1), a first support tube (2) is arranged on the top of the cushion layer (1), a first distribution beam (4) is arranged on the top of the first support tube (2), a Bailey frame (5) is arranged on the top of the first distribution beam (4), a second distribution beam (10) is arranged on the top of the Bailey frame (5), a lower steel box beam (7) is arranged on the top of the second distribution beam (10), a second support tube (9) is arranged on the top of the lower steel box beam (7), a third distribution beam (11) is arranged on the top of the second support tube (9), and an upper steel box beam (8) is arranged on the top of the third distribution beam (11).

2. The multi-layer support device for double-layer steel box girders across subways according to claim 1 is characterized in that: The first support tube (2) and the second support tube (9) are also connected to the connection system (3).

3. The multi-layer support device for double-layer steel box beams across subways according to claim 1 is characterized in that: The connection system (3) between the first support tube (2) and the second support tube (9) adjacent to each other is arranged in a zigzag pattern.

4. The multi-layer support device for double-layer steel box girders across subways according to claim 3 is characterized in that: The distance between each support tube in the first support tube (2) and the second support tube (9) is equal.

5. The multi-layer support device for double-layer steel box girders across subways according to claim 1 is characterized in that: Adjustment pipes (6) are provided between the lower steel box beam (7) and the second distribution beam (10), and between the upper steel box beam (8) and the third distribution beam (11).

6. The multi-layer support device for double-layer steel box girders across subways according to claim 2 or 3, characterized in that: The connection system (3) is one of a welding connection, a bolt connection and a high-strength bolt connection.

7. The multi-layer support device for double-layer steel box girders across subways according to claim 1 is characterized in that: The cushion layer (1) is connected to the embedded parts of the bearing platforms on both sides of the subway along the length of the bridge.

8. The multi-layer support device for double-layer steel box girders across subways according to claim 1 is characterized in that: The first distribution beam (4), the second distribution beam (10) and the third distribution beam (11) are all made of I-beams or channel steels.

9. The multi-layer support device for double-layer steel box girders across subways according to claim 1, characterized in that: The lower steel box girder (7) and the upper steel box girder (8) are both composed of a plurality of box bodies, and an adjusting pipe (6) is provided at the bottom of both sides of the connection of each box body.

10. The multi-layer support device for double-layer steel box girders across subways according to claim 1, characterized in that: The lower steel box girder (7) and the upper steel box girder (8) are both mounted on two bridge piers.

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