Bridge cover beam formwork device

Abstract

The utility model relates to a kind of road bridge bent cap formwork device, it includes: steel pipe stand, transverse connection truss, longitudinal connection truss, it is connected together with the steel pipe stand arranged longitudinally, located in the left and right sides of pier;Unloading block, it is installed on steel pipe stand;Distribution beam, it is installed on unloading block;Bailey truss platform, it is installed on distribution beam;Support frame, it is installed on bailey truss platform, its overall is back-shaped layout, and it is double-layer ladder type, its first ladder is set up bent cap below construction platform, its second ladder is set up bent cap above construction platform;Bent cap below construction platform and bent cap above construction platform are installed positioning reinforcement on inner edge portion, positioning reinforcement is arranged around counterweight, the counterweight is accumulated in the area defined by positioning reinforcement;Bent cap formwork, it is fixedly installed in the inside of back-shaped support frame, and splice into whole.The utility model is favorable to adjust platform barycenter.

Description

Technical Field

[0001] This utility model relates to the field of bridge cap beam construction, and in particular to a formwork support device for road and bridge cap beams. Background Technology

[0002] For example, Chinese Utility Model Patent Publication No. CN209907225U discloses a formwork support frame for cast-in-place construction of a long cantilever cap beam, including a concrete foundation. Several evenly distributed steel pipe support columns are installed at the top of the concrete foundation. The steel pipe support columns are connected to the concrete foundation through a first installation mechanism. A channel steel connecting assembly connects adjacent steel pipe support columns. An I-shaped truss beam is connected to the top of the steel pipe support columns through a second installation mechanism. A cap beam-shaped combined steel formwork is installed at the top of the I-shaped truss beam. While this design uses a Bailey bridge platform to erect a safe construction platform to ensure the safety of construction personnel in the air, it does not provide counterweights at the inner edge of the platform to adjust the center of gravity, thus avoiding the problem of the platform easily tipping over due to the outward shift of the center of gravity at the outer edge of the platform caused by frequent movement of personnel and equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a road and bridge cap beam formwork support device, which is conducive to building a double-layer construction platform around the construction template of the cap beam, and installing counterweights on the inner edge of the construction platform to adjust the overall center of gravity of the construction platform, so as to prevent the center of gravity from shifting outward and the platform from easily overturning when personnel and machinery move frequently on the outer edge of the construction platform.

[0004] To solve the above problems, a formwork support device for road and bridge cap beams was adopted, which includes: Steel pipe columns are installed at intervals on the foundation, located on the front and rear sides of the pier; The transverse connecting truss connects the transversely arranged steel pipe columns together. The longitudinal connecting truss connects the longitudinally arranged steel pipe columns located on the left and right sides of the pier. The unloading block is installed on the steel pipe column; Distribution beams are mounted on the unloading blocks; A Bailey bridge platform, which is installed on the distribution beam; The support frame is installed on the Bailey bridge platform. It is arranged in a U-shape and is a double-layered stepped structure. The first step is used to build the construction platform below the cap beam, and the second step is used to build the construction platform above the cap beam. Positioning steel bars are installed on the inner edges of the construction platforms below and above the cap beam. The positioning steel bars are arranged around the counterweight, which is piled up in the area defined by the positioning steel bars. The formwork for the cap beam is fixedly installed on the inside of the U-shaped support frame and spliced ​​into a whole.

[0005] With this structure, the construction platform below the cap beam facilitates the construction workers to set up the bottom formwork of the cap beam; the construction platform above the cap beam facilitates the construction workers to pour the cap beam; after the counterweight is placed on the inner edge, when the construction workers and equipment move on the outer edge of the construction platform, it is not easy to cause the overall center of gravity to shift outward, which helps to prevent the platform from overturning. As a further improvement of this utility model, the support frame adopts a disc-lock type support frame.

[0006] This structure makes the disc-lock support frame easy to assemble and helps improve construction efficiency.

[0007] As a further improvement of this utility model, the construction platform below the cap beam and the construction platform above the cap beam are in a U-shape.

[0008] This structure, with its U-shaped construction platform, facilitates the movement of workers around the cap beam formwork.

[0009] As a further improvement of this utility model, a protective fence is provided around the construction platform below the cap beam and the construction platform above the cap beam.

[0010] With this structure, the protective fence can ensure air defense.

[0011] As a further improvement of this utility model, a gap is reserved when the counterweight is stacked.

[0012] This structure allows for the provision of passageways for construction workers to operate construction equipment.

[0013] As a further improvement of this utility model, a toe plate is installed between the counterweight and the positioning steel bar near the edge.

[0014] With this structure, the toe guard helps improve edge protection.

[0015] As a further improvement of this utility model, the counterweight is a sandbag.

[0016] With this structure, the sandbags can be directly made from the sandbags left after the steel pipe columns and support frames have been pre-compressed, without the need to purchase them separately.

[0017] This utility model facilitates the construction of a double-layer construction platform around the construction template of the cap beam, and the installation of counterweights on the inner edge of the construction platform adjusts the overall center of gravity of the construction platform, preventing the center of gravity from shifting outward and the platform from easily tipping over when personnel and machinery move frequently on the outer edge of the construction platform. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0019] Figure 2This is a structural schematic diagram from another angle of the embodiment.

[0020] Attached reference numerals: 1. Steel pipe column; 2. Foundation; 3. Pier; 4. Transverse connecting truss; 5. Longitudinal connecting truss; 6. Unloading block; 7. Distribution beam; 8. Bailey bridge platform; 9. Support frame; 10. Cap beam formwork; 11. Construction platform below the cap beam; 12. Construction platform above the cap beam; 13. Protective enclosure; 14. Positioning reinforcement; 15. Counterweight; 16. Toe board; 17. Spacing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1 like Figures 1-2 As shown, a formwork support device for road and bridge cap beams includes: Steel pipe columns 1 are installed at intervals on foundation 2, located on the front and rear sides of pier 3; The transverse connecting truss 4 connects the transversely arranged steel pipe columns 1 together; The longitudinal connecting truss 5 connects the longitudinally arranged steel pipe columns 1 located on the left and right sides of the pier 3. Unloading block 6 is installed on steel pipe column 1; The distribution beam 7 is installed on the unloading block 6; The Bailey frame platform 8 is installed on the distribution beam 7; The support frame 9 is installed on the Bailey frame platform 8, is arranged in a square-loop shape as a whole, and is of a double-layer stepped structure. A construction platform 11 below the cap beam is erected on a first step of the support frame 9, and a construction platform 12 above the cap beam is erected on a second step of the support frame 9; positioning steel bars 14 are installed on inner edge portions of the construction platform 11 below the cap beam and the construction platform 12 above the cap beam, the positioning steel bars 14 are arranged around a counterweight 15, and the counterweight 15 is stacked in an area defined by the positioning steel bars 14; The cap beam formwork 10 is fixedly installed on an inner side of the square-loop shaped support frame 9 and spliced into a whole.

[0024] With such a structure, the construction platform 11 below the cap beam facilitates construction personnel to set up a bottom mold of the cap beam; the construction platform 12 above the cap beam facilitates construction personnel to pour the cap beam. After the counterweight 15 is arranged at the inner edge portion, when constructors and machines move on the outer edge of the construction platform, the overall center of gravity is not easy to shift outward, which is beneficial to preventing the platform from overturning; In this embodiment, the support frame 9 is a disk-lock type support frame.

[0025] With such a structure, the disk-lock type support frame is convenient to erect, which is beneficial to improving construction efficiency.

[0026] In this embodiment, the construction platform 11 below the cap beam and the construction platform 12 above the cap beam are in a square-loop shape as a whole.

[0027] With such a structure, the square-loop shaped construction platform facilitates surrounding the cap beam formwork, which is beneficial to expanding the activity range of construction personnel.

[0028] In this embodiment, a circle of protective fence 13 is arranged around the construction platform 11 below the cap beam and the construction platform 12 above the cap beam.

[0029] With such a structure, the protective fence 13 can ensure overhead protection.

[0030] In this embodiment, an interval 17 is reserved when the counterweight 15 is stacked.

[0031] With such a structure, the interval 17 facilitates reserving a passage for construction personnel to operate construction machines and tools.

[0032] In this embodiment, a toe board 16 is installed between the counterweight and the positioning steel bars 14 close to the edge.

[0033] With such a structure, the toe board 16 is beneficial to improving edge protection.

[0034] In this embodiment, the counterweight 15 is a sand bag.

[0035] With this structure, the sandbags can be directly made from the sandbags left after the steel pipe columns and support frames have been pre-compressed, without the need to purchase them separately.

[0036] This utility model facilitates the construction of a double-layer construction platform around the construction template of the cap beam, and the installation of counterweights on the inner edge of the construction platform adjusts the overall center of gravity of the construction platform, preventing the center of gravity from shifting outward and the platform from easily tipping over when personnel and machinery move frequently on the outer edge of the construction platform.

[0037] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A formwork support device for road and bridge cap beams, characterized in that... Comprising: steel pipe uprights (1), which are installed at intervals on a foundation (2) and located on the front and rear sides of a pier (3); a transverse connecting truss (4), which connects the transversely arranged steel pipe uprights (1) together; a longitudinal connecting truss (5), which connects the longitudinally arranged steel pipe uprights (1) located on the left and right sides of the pier (3) together; unloading blocks (6), which are installed on the steel pipe uprights (1); distribution girders (7), which are installed on the unloading blocks (6); a Bailey truss platform (8), which is installed on the distribution girders (7); a support frame (9), which is installed on the Bailey truss platform (8), is arranged in a hollow square shape as a whole, and is of a double-layer stepped type. A construction platform below the capping beam (11) is erected on its first step, and a construction platform above the capping beam (12) is erected on its second step; positioning steel bars (14) are installed on the inner edge portions of the construction platform below the capping beam (11) and the construction platform above the capping beam (12), the positioning steel bars (14) are arranged around a counterweight (15), and the counterweight (15) is stacked in an area defined by the positioning steel bars (14); a capping beam formwork (10), which is fixedly installed on the inner side of the hollow square-shaped support frame (9) and spliced into a whole.

2. The formwork support device for road and bridge cap beams according to claim 1, characterized in that... The support frame (9) adopts a disc-type buckle support frame.

3. The formwork support device for road and bridge cap beams according to claim 1, characterized in that... The construction platform below the capping beam (11) and the construction platform above the capping beam (12) are hollow square-shaped as a whole.

4. The formwork support device for road and bridge cap beams according to claim 3, characterized in that... A circle of protective enclosures (13) is arranged around the construction platform below the capping beam (11) and the construction platform above the capping beam (12).

5. The formwork support device for road and bridge cap beams according to claim 3, characterized in that... Spaces (17) are reserved when the counterweight (15) is stacked.

6. The formwork support device for road and bridge cap beams according to claim 5, characterized in that... Toe boards (16) are installed between the counterweight and the positioning steel bars (14) close to the edge.

7. The formwork support device for road and bridge cap beams according to claim 5, characterized in that... The counterweight (15) is a sand bag.

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