Bridge box girder forming outer mold supporting and reinforcing device

Abstract

The utility model provides a bridge box girder forming outer mold supporting and reinforcing device which comprises a foundation base, a lateral supporting frame and a top cover plate, a forming mold is arranged in the outer mold supporting and reinforcing device, and the forming mold corresponds to the appearance of a box girder. The box girder is integrally formed in the inner side space of the forming die in a pouring mode, lateral supporting frames are arranged on the two sides of the forming die respectively, the lateral supporting frames are arranged close to the outer shape of the forming die and form a lateral supporting structure, the lateral supporting frames and the forming die are stably fixed to a foundation base, and the foundation base is horizontally arranged in a work site. A top cover plate is arranged on the upper portion of the lateral supporting frame and closes the upper open face of the forming die. The outer mold is an area used for providing space for forming of the box girder, a formed steel reinforcement framework and a partition plate for limiting the shape of the box girder can be built in the space, and the whole outer mold supporting and reinforcing structure can be implemented in a foundation pit in a site.

Description

Technical Field

[0001] This utility model relates to a production device for bridge components, specifically a support and reinforcement device for the outer mold of a bridge box girder. Background Technology

[0002] The box girder is a major structure in the middle section of a bridge. Its internal space provides the bridge deck foundation on the upper part and connects to the piers on the lower part. Box girders are mainly divided into cast-in-place box girders and precast box girders. Precast box girders can shorten the construction period. They are generally cast in a special site and then installed in the bridge structure. Casting box girders requires a mold structure. The mold needs to have a strong pressure holding capacity when accommodating the box girder to avoid deformation and other problems. Therefore, a support and reinforcement structure that can strengthen the outer mold is needed to improve the production quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a support and reinforcement device for the outer mold of bridge box girder forming.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: the external mold support and reinforcement device includes a base, a side support frame and a top cover plate. The external mold support and reinforcement device is provided with a forming mold inside. The forming mold is formed according to the shape of the box girder. The box girder is cast and formed in the inner space of the forming mold. Side support frames are respectively provided on both sides of the forming mold. The side support frames are set close to the outer shape of the forming mold and form a side support structure. The side support frames and the forming mold are both stably fixed on the base. The base is set horizontally in the working area. A top cover plate is provided on the upper part of the side support frame. The top cover plate closes the upper open surface of the forming mold. The outer formwork is the area that provides space for the forming of the box girder. Within this space, the steel reinforcement skeleton and the partitions that restrict the shape of the box girder can be constructed. After the skeleton and partitions are completed, concrete is poured to form the required box girder structure. The overall outer formwork support and reinforcement structure can be implemented in the foundation pit on site. The two ends of the outer formwork are surrounded by the foundation facade of the foundation pit to form an enclosure structure. Since the box girder has a large overhang, lateral support frames are set for fixation. The foundation base is used to strengthen the bottom structure and avoid settlement problems due to the self-weight of the box girder. The top cover plate can cover the top surface when there are surface requirements to reduce the impact of the external environment.

[0005] Furthermore, the lateral support frame includes a contoured body, an outer support body, and a structural frame. The contoured body is contoured to the outer surface of the forming mold. An outer support body is located on the side opposite the contoured body. The outer support body is an outward-sloping support structure. The outer support body and the contoured body are fixedly connected by the structural frame. The structural frame has multiple layers of transverse support structures, with diagonal support members connecting the transverse support structures. The contoured body is a contoured support structure based on the side shape of the box girder. The outer support body is opposite to the contoured body, forming an outward-sloping support structure with a large support area. Connected by the structural frame, the overall structural support has high strength, is not prone to slippage, and provides good lifting effect.

[0006] Furthermore, both the contoured body and the outer support body of the lateral support frame are formed by splicing and welding plate materials. The transverse support structure and the diagonal support members are straight steel structures and are fixedly connected by welding. The entire lateral support frame is constructed of steel, which facilitates construction and provides good structural strength.

[0007] Furthermore, the top cover plate includes a flat plate and a top cover plate. The flat plate and the top cover plate are fixedly connected in plane. The lower surface of the flat plate is a flat, processed surface. The top cover plate has outwardly extending, laterally formed lifting sides on both sides. A lifting positioning body is provided at the bottom of the lifting side. The top of the lateral support frame is provided with a positioning square hole. The top of the top cover plate is provided with a corresponding positioning block. The positioning block and the positioning square hole are aligned to form a flat, closed positioning structure. The flat plate can help the upper surface of the box girder to form a flat surface. The top cover plate can be set as a multi-piece assembly structure. It can achieve the covering setting of the cover plate by lifting and laterally moving. The positioning square hole is used for positioning the cover plate.

[0008] Furthermore, the interior of the forming mold is designed with a smooth processing surface, and the surface of the forming mold is covered with a separating material. The separating material separates and separates the processing surface of the forming mold from the finished surface of the box girder. The forming mold can be made of cement-reinforced steel structure to form the required working surface, and the separating material can be a high-polymer film material, which has a good release effect and is easy to flatten and spread, thus improving production quality.

[0009] Compared with the prior art, this utility model has the following advantages and effects: This design is an improvement on the forming device of a box girder structure for bridges. It can effectively form a stable space for forming a box girder, avoid the problem of deformation of the box girder during the forming process, and has high construction efficiency and stable and reliable structure. It can quickly improve the construction efficiency of bridges and improve product quality. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the support and reinforcement device.

[0011] Figure 2This is a structural schematic diagram along the cross-sectional direction.

[0012] Figure 3 This is a schematic diagram of the structure viewed from above.

[0013] In the diagram: 1. Base, 2. Side support frame, 3. Top cover plate, 4. Molding mold, 21. Shaped body, 22. Outer support body, 23. Structural frame, 31. Flat plate, 32. Top cover plate, 5. Positioning square hole. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0015] A bridge box girder forming external mold support and reinforcement device includes a base base 1, lateral support frames 2, and a top cover plate 3. The external mold support and reinforcement device has a forming mold 4 inside, which is formed to correspond to the shape of the box girder. The box girder is cast and formed in the inner space of the forming mold 4. Lateral support frames 2 are respectively set on both sides of the forming mold 4. The lateral support frames 2 are set close to the outer shape of the forming mold 4 to form a lateral support structure. The lateral support frames 2 and the forming mold 4 are both stably fixed on the base base 1. The base base 1 is set horizontally in the working site. The top cover plate 3 is set on the upper part of the lateral support frames 2, and the top cover plate 3 closes the upper open surface of the forming mold 4.

[0016] The lateral support frame 2 includes a contoured body 21, an outer support body 22, and a structural frame 23. The contoured body 21 is contoured to the outer surface of the molding mold 4. An outer support body 22 is provided on the side opposite to the contoured body 21. The outer support body 22 is an inclined support structure with the bottom sloping outward. The outer support body 22 and the contoured body 21 are fixedly connected by the structural frame 23. The structural frame 23 is provided with multiple layers of transverse support structure, and inclined support members are connected between the transverse support structures.

[0017] The lateral support frame 2's contoured body 21 and outer support body 22 are both formed by welding together sheet metal. The transverse support structure and the diagonal support are straight steel structures and are fixedly connected by welding.

[0018] The top cover plate 3 includes a flat plate 31 and a top cover plate 32. The flat plate 31 and the top cover plate 32 are fixedly connected in plane. The lower surface of the flat plate 31 is a flat process surface. The top cover plate 32 has outwardly extending and formed lifting sides on both sides. The bottom of the lifting side is provided with a lifting positioning body. The top of the lateral support frame 2 is provided with a positioning square hole 5. The top of the top cover plate 32 is provided with a corresponding positioning block. The positioning block and the positioning square hole 5 are matched to form a flat and closed positioning structure.

[0019] The interior of the forming mold 4 is set with a smooth processing surface, and the surface of the forming mold 4 is provided with an isolation material. The isolation material separates and separates the processing surface of the forming mold from the finished surface of the box girder.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary rather than restrictive in all respects. The scope of this invention is defined by the claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A support and reinforcement device for the outer mold of a bridge box girder, characterized in that: The external mold support and reinforcement device includes a base base (1), a side support frame (2), and a top cover plate (3). The external mold support and reinforcement device is equipped with a forming mold (4). The forming mold (4) is formed according to the shape of the box girder. The box girder is cast in the inner space of the forming mold (4). Side support frames (2) are set on both sides of the forming mold (4). The side support frames (2) are set close to the outer shape of the forming mold (4) and form a side support structure. The side support frames (2) and the forming mold (4) are both stably fixed on the base base (1). The base base (1) is set horizontally in the work area. A top cover plate (3) is set on the upper part of the side support frame (2). The top cover plate (3) closes the upper open surface of the forming mold (4).

2. The bridge box girder forming outer mold support and reinforcement device according to claim 1, characterized in that: The lateral support frame (2) includes a contour body (21), an outer support body (22), and a structural frame (23). The contour body (21) is contoured to the outer surface of the molding mold (4). An outer support body (22) is provided on the side opposite to the contour body (21). The outer support body (22) is an inclined support structure with the bottom inclined outward. The outer support body (22) and the contour body (21) are fixedly connected by the structural frame (23). The structural frame (23) is provided with multiple layers of transverse support structure, and inclined support members are connected between the transverse support structures.

3. The bridge box girder forming outer mold support and reinforcement device according to claim 2, characterized in that: The lateral support frame (2) is formed by welding together sheet metal for both the contour body (21) and the outer support body (22). The transverse support structure and the diagonal support are straight steel structures and are fixedly connected by welding.

4. The bridge box girder forming outer mold support and reinforcement device according to claim 1, characterized in that: The top cover plate (3) includes a flat plate (31) and a top cover plate (32). The flat plate (31) and the top cover plate (32) are fixedly connected in plane. The lower surface of the flat plate (31) is a flat process surface. The top cover plate (32) has outwardly extending and formed lifting sides on both sides. The bottom of the lifting sides is provided with a lifting positioning body. The top of the lateral support frame (2) is provided with a positioning square hole (5). The top of the top cover plate (32) is provided with a corresponding positioning block. The positioning block and the positioning square hole (5) are matched to form a flat and closed positioning structure.

5. The bridge box girder forming outer mold support and reinforcement device according to claim 1, characterized in that: The interior of the forming mold (4) is set as a smooth processing surface, and the surface of the forming mold (4) is provided with an isolation material. The isolation material isolates and separates the processing surface of the forming mold from the finished surface of the box girder.

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