Support structure for bridge form installation

Abstract

The utility model relates to the technical field of building engineering construction, especially a kind of support structure for bridge formwork installation, including I-beam, two pieces of wing plate between the I-beam are fixed with mounting plate, the center of mounting plate is provided with through-hole, through-hole is fixed with the nut coaxial with it, the nut is threadedly connected with screw rod, the screw rod is set along I-beam height direction, and its length is greater than the distance from mounting plate to the bottom surface of I-beam;Advantages lie in: by setting adjustable screw rod device on I-beam, the flexible adjustment of support height and the effective promotion of structural stability are realized, this scheme not only adapts to the construction demand of different height bridge, but also installation and disassembly are convenient, bearing capacity is strong, applicable to a variety of bridge formwork support scene.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a support structure for bridge formwork installation. Background Technology

[0002] During beam and slab construction, column-shaped supports are needed for reinforcement when installing the bottom formwork to ensure it can bear the weight of the reinforced concrete. In bridge construction, I-beams are generally used as vertical support structures, such as... Figure 1 As shown, after the bridge pier construction is completed, formwork is erected between two adjacent bridge piers, and I-beams are erected below the bottom formwork as supports.

[0003] However, this approach has limitations in practical application: the height of the bridge varies from project to project, while the length of the supporting I-beams is fixed. A height suitable for one construction site may not be suitable for another. Typically, the height of the I-beams used is lower than that of most bridges. When using them for support, the I-beams are lifted manually or with machinery until the top of the I-beam contacts the bottom formwork. Wedges are then inserted underneath the I-beam to fill the gap between it and the ground, thus completing the erection. While lifting the I-beams with machinery saves effort, the machinery sometimes has difficulty accessing the specific work point. Manual lifting, due to the thinness of the I-beam, has limited space for applying force, making it difficult to coordinate multiple workers. Additionally, space must be left for installing the wedges, making the operation quite inconvenient.

[0004] Therefore, this case is brought. Utility Model Content

[0005] The purpose of this invention is to provide a support structure for bridge formwork installation to solve the above-mentioned defects.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A support structure for bridge formwork installation includes an I-beam. An mounting plate is fixed between two flanges of the I-beam. The mounting plate is located on one or both sides of the web. A through hole is opened in the center of the mounting plate. A nut coaxial with the through hole is fixed at the through hole. A screw is threaded onto the nut. The screw is set along the height direction of the I-beam and its length is greater than the distance from the mounting plate to the bottom surface of the I-beam.

[0008] Furthermore, the top end of the screw is provided with a shank for easy screwing.

[0009] Furthermore, a flat plate is fixed to the bottom of the screw. By screwing the screw, the flat plate can rise into the space between the two flanges of the I-beam. The area of ​​the flat plate is larger than the cross-sectional area of ​​the screw.

[0010] Furthermore, a triangular stiffening plate is provided between the mounting plate and the I-beam flange and / or the I-beam web.

[0011] Furthermore, it includes a pad and a wedge. When the flat plate is supported on the ground, the pad can enter the space between the two flat plates and be placed on the ground, and the wedge is set between the pad and the bottom surface of the I-beam.

[0012] Furthermore, protrusions are provided on both sides of the pad, and screw holes are provided on the protrusions. Tightening bolts for tightening the wedges are threaded into the screw holes.

[0013] By tightening the top bolt, the top bolt can be screwed toward the I-beam side, and the wedge placed on the pad can be pushed to slide toward the center of the I-beam.

[0014] Furthermore, the upper part of the I-beam is fixed with a diagonal brace, and the top of the diagonal brace is fixed with a top plate for fixing the bottom surface of the template.

[0015] The advantages of this utility model are as follows: By setting an adjustable screw device on the I-beam, the support height can be flexibly adjusted and the structural stability can be effectively improved. This solution not only adapts to the construction needs of bridges of different heights, but also is convenient to install and disassemble and has a strong load-bearing capacity. With the limiting design of the tightening bolt and wedge, on the one hand, it is convenient for the wedge to be inserted into the bottom of the I-beam and tightened by the tightening bolt, so that the I-beam can push the bottom formwork upward. On the other hand, due to the presence of the tightening bolt, the wedge will not slide outward under the pressure of the I-beam, ensuring the safety and reliability of the support system. It has the advantages of reasonable structure, simple operation, high reusability, and high construction efficiency, and is suitable for various bridge formwork support scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an I-beam support formwork in the background art;

[0017] Figure 2 This is a schematic diagram of the support structure used for bridge formwork installation in the embodiment;

[0018] Figure 3 This is a schematic diagram of the support structure supporting the template in the embodiment;

[0019] Figure 4 This is a schematic diagram showing the state of the wedge being tightened by the screw on the pad in the embodiment.

[0020] Label Explanation

[0021] 1. I-beam; 2. Pier; 3. Formwork; 4. Mounting plate; 5. Nut; 6. Screw; 7. Handle; 8. Flat plate; 9. Triangular stiffening plate; 10. Pad; 11. Wedge; 12. Protrusion; 13. Tightening bolt; 14. Diagonal brace. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0023] This embodiment proposes a support structure for bridge formwork installation, such as... Figure 2 As shown, the structure includes an I-beam 1, which consists of a web and flanges located on both sides of the web. A mounting plate 4 is fixed between the two flanges of the I-beam 1. In this embodiment, there are two mounting plates 4, each located on one side of the web. A through hole is formed in the center of the mounting plate 4, and a nut 5, coaxial with the nut 5, is welded and fixed to the through hole. A screw 6 is threaded onto the nut 5. The screw 6 is positioned along the height of the I-beam 1, and its length is greater than the distance from the mounting plate 4 to the bottom surface of the I-beam 1. Preferably, in this embodiment, a hexagonal shank 7 is welded to the top of the screw 6, and a flat plate 8 is welded to the bottom. By screwing the screw 6, the flat plate 8 can rise into the space between the two flanges of the I-beam 1. The area of ​​the flat plate 8 is larger than the cross-sectional area of ​​the screw 6, thereby increasing the support surface of the screw 6.

[0024] Meanwhile, the support structure of this application also includes a pad 10 and a wedge 11. When the flat plate 8 is supported on the ground, the pad 10 can enter the space between the two flat plates 8 and be placed on the ground. The wedge 11 is set between the pad 10 and the bottom surface of the I-beam 1. The pad 10 has protrusions 12 on both sides, and the protrusions 12 have screw holes. The screw holes are threaded with tightening bolts 13 for tightening the wedge 11. By screwing the tightening bolts 13, the tightening bolts 13 can be screwed into the side of the I-beam 1 and push the wedge 11 placed on the pad 10 to slide towards the center of the I-beam 1.

[0025] like Figure 3 and Figure 4As shown, during construction, the I-beam 1 is first placed at the point requiring support below the formwork 3, with a certain distance between the I-beam 1 and the bottom plate of the formwork 3. One or two workers hold the I-beam 1, while two other workers simultaneously tighten the bolt 6. Tightening the bolt 6 downwards lowers the end plate 8. When the plate 8 supports the ground, the bolt 6 is tightened further, causing the I-beam 1 to rise. When the I-beam 1 presses against the bottom of the formwork 3, a pad 10 is placed under the I-beam 1. Then, the two workers tightening the bolt 6 insert wedges 11 on both sides of the I-beam 1 and strike them to press against the bottom of the I-beam 1. The two workers simultaneously tighten the tightening bolt 13 until the tightening bolt 13 is so tight that the wedges 11 cannot be tightened further. At this point, the bottom of the I-beam 1 is supported by the plate 8, the wedges 11, and the pad 10, ensuring safety, reliability, and strong load-bearing capacity.

[0026] Preferably, in this embodiment, triangular stiffening plates 9 are provided between the mounting plate 4 and the flange and web of the I-beam 1 to improve the connection strength of the mounting plate 4. At the same time, a diagonal brace 14 is fixed to the upper part of the I-beam 1, and a top plate for fixing the bottom surface of the template 3 is fixed to the top of the diagonal brace 14 to improve the support stability of the support structure.

[0027] The components used in this solution are all made of materials commonly found on construction sites. They have the advantages of being easy to manufacture, convenient to install and disassemble, flexible in adjusting the support height, and high reusability. They are suitable for various bridge formwork support scenarios.

[0028] The above embodiments are only used to explain the concept of the present invention, and are not intended to limit the protection of the present invention. Any non-substantial modifications made to the present invention using this concept should fall within the protection scope of the present invention.

Claims

1. A support structure for bridge formwork installation, comprising I-beams, characterized in that, An mounting plate is fixed between the two flanges of the I-beam. The mounting plate is located on one or both sides of the web. A through hole is opened in the center of the mounting plate, and a nut coaxial with it is fixed at the through hole. A screw is threaded onto the nut. The screw is set along the height direction of the I-beam, and its length is greater than the distance from the mounting plate to the bottom surface of the I-beam.

2. The support structure for bridge formwork installation as described in claim 1, characterized in that, The top of the screw is provided with a handle for easy screwing.

3. The support structure for bridge formwork installation as described in claim 1, characterized in that, A flat plate is fixed to the bottom of the screw. By screwing the screw, the flat plate can rise into the space between the two flanges of the I-beam. The area of ​​the flat plate is larger than the cross-sectional area of ​​the screw.

4. A support structure for bridge formwork installation as described in claim 1, characterized in that, A triangular stiffening plate is provided between the mounting plate and the I-beam flange and / or the I-beam web.

5. A support structure for bridge formwork installation as described in claim 3, characterized in that, Includes a pad and a wedge. When the flat plate is supported on the ground, the pad can be inserted into the space between the two flat plates and placed on the ground, and the wedge is set between the pad and the bottom surface of the I-beam.

6. A support structure for bridge formwork installation as described in claim 5, characterized in that, The pad is provided with protrusions on both sides, and screw holes are provided on the protrusions. Tightening bolts for tightening the wedges are threaded into the screw holes. By tightening the top bolt, the top bolt can be screwed toward the I-beam side, and the wedge placed on the pad can be pushed to slide toward the center of the I-beam.

7. A support structure for bridge formwork installation as described in claim 1, characterized in that, The upper part of the I-beam is fixed with a diagonal brace, and the top of the diagonal brace is fixed with a top plate for fixing the bottom surface of the template.

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