Sluice service bridge steel formwork

Abstract

The utility model provides a sluice service bridge steel formwork which comprises two formwork shells and pull buckles installed on the formwork shells and used for exerting downward pulling force, the two formwork shells are arranged, the two sides of the two formwork shells are connected in a fastened mode through fasteners, and a pouring cavity is formed between the two formwork shells. The number of the pull buckles is at least three, the three pull buckles are distributed at the top of the mold shell at intervals, and the included angle between every two adjacent pull buckles is smaller than 180 degrees. Through the arrangement of the pull buckles, pulling force is applied to the pull buckles during construction, the three pull buckles provide pulling force in three directions, component force of the three pulling force in the horizontal direction counteracts one another, the horizontal component force is beneficial for preventing the formwork from toppling over, and the component force in the vertical downward direction is applied to the formwork; the formwork is prevented from vertically moving upwards in the pouring process, and leakage of concrete at the bottom of the formwork is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of sluice gate column and beam construction technology, specifically to a steel formwork for a sluice gate working bridge. Background Technology

[0002] In the construction of existing sluice gate working bridges, the foundation is usually constructed on the ground, and then the formwork is erected on the foundation.

[0003] Taking circular formwork as an example, during the formwork erection process, the formwork is often placed over the outer surface of the reinforcing cage, typically using two semi-circular formworks joined together before pouring. Research has revealed that existing formwork systems experience significant pressure at the bottom during concrete pouring, especially when a vibratory pump is inserted into the formwork. This increased concrete fluidity leads to greater pressure on the bottom of the formwork, causing it to shift vertically upwards. This creates gaps at the bottom, resulting in concrete leakage. In severe cases, concrete flows directly out from the bottom, making pouring impossible and causing significant material waste. Therefore, the current main solution is to erect scaffolding, using pressure bars on the scaffolding to apply pressure to the circular formwork and prevent it from shifting upwards during pouring.

[0004] In summary, there is an urgent need for a steel formwork for a sluice gate working bridge to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a steel formwork for a sluice gate working bridge, aiming to solve the problem that existing steel formwork for sluice gate working bridges easily shifts upwards during use. The specific technical solution is as follows:

[0006] A steel formwork for a sluice gate working bridge includes a mold shell and tie rods installed on the mold shell for applying downward tension. Two mold shells are arranged, and the two sides of the two mold shells are fastened together by fasteners, forming a casting cavity between the two mold shells. At least three tie rods are included, and the three tie rods are distributed at intervals on the top of the mold shell, with the included angle between two adjacent tie rods being less than 180 degrees.

[0007] Furthermore, the pull buckle includes a pull ring and a fixing nut. The pull ring is provided with a screw, and the top of the mold shell is provided with a through hole. The screw of the pull ring passes through the through hole, and the fixing nut is threadedly connected to the screw to fasten the pull ring to the top of the mold shell.

[0008] Furthermore, the mold shell includes a base plate, connecting end plates, and connecting side plates. Two connecting end plates are arranged, one at each end of the base plate, and through holes are arranged on the connecting end plates. Two connecting side plates are arranged, one on each side of the base plate.

[0009] Furthermore, the mold shell also includes vertical reinforcing ribs, which are distributed along the length of the substrate. Multiple vertical reinforcing ribs are arranged, and the multiple vertical reinforcing ribs are arranged at intervals along the outer periphery of the substrate.

[0010] Furthermore, the formwork also includes stirrups, with the first end of the stirrups fixedly connected to the connecting side plate, and the second end of the stirrups sequentially passing around multiple vertical reinforcing ribs before being fixedly connected to another connecting side plate.

[0011] Furthermore, both ends of the stirrups are bent towards the base plate.

[0012] Furthermore, the mold shell is semi-circular or right-angled.

[0013] Furthermore, the mold shell also includes side reinforcing ribs, with the first end of the side reinforcing ribs fixedly connected to the connecting side plate, the second end of the side reinforcing ribs fixedly connected to the vertical reinforcing ribs, and the side of the side reinforcing ribs fixedly connected to the substrate.

[0014] Furthermore, the mold shell also includes two lateral seepage-proof pads, which are respectively fixedly connected to two connecting side plates.

[0015] Furthermore, the mold shell also includes end waterproofing pads, two of which are arranged and fixedly connected to two connecting end plates respectively.

[0016] The application of the technical solution of this utility model has the following beneficial effects:

[0017] During construction, two formwork shells are first arranged around the outside of the steel cage to be poured. The two formwork shells are then locked together with fasteners to form a pouring cavity between them. Tie buckles are installed on the top of the formwork shells and connected to them with steel wire ropes or iron wires. The end of the steel wire rope or iron wire away from the tie buckle is fixed to the ground or to other fixed structures to create a downward pulling force. The three tie buckles provide pulling forces in three directions. The horizontal components of the three pulling forces cancel each other out, and the horizontal component helps to prevent the formwork shell from tipping over. The vertical downward component is applied to the formwork shell to prevent it from moving vertically upward during the pouring process, effectively preventing concrete leakage at the bottom of the formwork shell.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. These will be described below with reference to... Figures 1-4 The present invention will be described in further detail below. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is an exploded view of a steel formwork for a sluice gate working bridge according to this utility model;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 yes Figure 2 Enlarged view at point B;

[0023] Figure 4 This is a schematic diagram of the overall structure of a steel formwork for a sluice gate working bridge according to this utility model.

[0024] Among them, 1. Mold shell; 11. Base plate; 12. Connecting end plate; 121. Through hole; 122. Lifting hole; 13. Connecting side plate; 14. Vertical reinforcing rib; 15. Hoop; 16. Side reinforcing rib; 17. Side seepage barrier plate; 18. End seepage barrier plate; 2. Buckle; 21. Pull ring; 22. Fixing nut; 3. Fastener; 4. Casting cavity. Detailed Implementation

[0025] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] Example:

[0028] See Figures 1-4This embodiment provides a steel formwork for a sluice gate working bridge, including a mold shell 1 and tie rods 2 installed on the mold shell 1 for applying downward tension. Two mold shells 1 are arranged, and their two sides are fastened together by fasteners 3, forming a casting cavity 4 between the two mold shells 1. At least three tie rods 2 are provided, spaced apart on the top of the mold shell 1, with an angle of less than 180 degrees between adjacent tie rods 2. This embodiment uses four tie rods 2 as an example, with the four tie rods 2 evenly distributed at the upper ends of the two mold shells 1, and adjacent tie rods 2 arranged at a 90-degree angle. It should be noted that this angle refers to the angle formed between the line connecting one tie rod 2 to the center of the casting cavity 4 and the line connecting the adjacent tie rod 2 to the center of the casting cavity 4.

[0029] It is understood that during construction, two formwork shells 1 are first arranged around the outside of the reinforcing cage to be poured. The two formwork shells 1 are then locked together using fasteners 3, forming a pouring cavity 4 between them. Pull buckles 2 are installed on the top of the formwork shells 1, connected to them using steel wire ropes or iron wires. The end of the steel wire rope or iron wire away from the pull buckles 2 is fixed to the ground or to another fixed structure to create a downward pulling force. The four pull buckles 2 provide pulling forces in four directions. The horizontal components of the four pulling forces cancel each other out, and the horizontal component helps prevent the formwork shells 1 from tipping over. The vertically downward component is applied to the formwork shells 1 to prevent them from moving vertically upwards during pouring, effectively preventing concrete leakage at the bottom of the formwork shells 1. It is important to note that the steel wire ropes or iron wires must be arranged at an angle downwards when connecting them.

[0030] It should be noted that in this embodiment, the fastener 3 is a bolt, which is used to fasten the two mold shells 1 together by bolt locking. In some other embodiments of this application, the fastener 3 can also be a screw or a buckle, or other structure or component that can achieve fastening connection.

[0031] In another preferred embodiment, the pull buckle 2 includes a pull ring 21 and a fixing nut 22. A screw is provided on the pull ring 21, and a through hole 121 is provided on the top of the mold shell 1. The screw of the pull ring 21 passes through the through hole 121, and the fixing nut 22 is threadedly connected to the screw to fasten the pull ring 21 to the top of the mold shell 1.

[0032] It is known that during installation, the screw on the pull ring 21 passes through the through hole 121 at the top of the mold shell 1, and the nut is screwed onto the screw. Tightening the nut will securely connect the pull ring 21 to the top of the mold shell 1. This arrangement makes it easy to install and remove the pull buckle 2.

[0033] In another preferred embodiment, the mold shell 1 includes a base plate 11, a connecting end plate 12 and a connecting side plate 13. Two connecting end plates 12 are arranged, and the two connecting end plates 12 are respectively arranged at both ends of the base plate 11. Through holes 121 are arranged on the connecting end plates 12. Two connecting side plates 13 are arranged, and the two connecting side plates 13 are respectively arranged on both sides of the base plate 11.

[0034] It should be noted that the through hole 121 is arranged in an elongated shape. In this embodiment, the through hole 121 is a dual-purpose hole, that is, the through hole 121 can be used to install the pull ring 21, and the through hole 121 can also be used to connect two adjacent mold shells 1 by bolts, so that the two mold shells 1 can be spliced ​​in the height direction, thereby enabling the mold shell 1 to adapt to taller casting columns. In addition, the purpose of arranging the through hole 121 in an elongated shape is that during installation, there may be installation errors between the upper and lower mold shells 1. By arranging the through hole in an elongated shape, the bolts used for fixing can easily pass through the elongated holes on the two mold shells 1, thereby facilitating installation.

[0035] The connecting end plate 12 is provided with two lifting holes 122. The perpendicular line of the center of gravity of the mold shell 1 passes through the midpoint of the line connecting the two lifting holes 122. During lifting, two ends of a steel wire rope are passed through the two lifting holes 122 and connected to the mold shell 1. During lifting, the hook is hooked on the middle of the steel wire rope. Because the perpendicular line of the center of gravity of the mold shell 1 passes through the midpoint of the line connecting the two lifting holes 122, and the hook is hooked on the middle of the steel wire rope, the hook is located on the perpendicular line of the center of the mold shell 1. This means the lifting force provided by the hook and the weight of the mold shell 1 are on the same straight line. Therefore, the mold shell 1 will not deflect during lifting, facilitating its movement and installation. This improves construction efficiency.

[0036] In another preferred embodiment, the mold shell 1 further includes vertical reinforcing ribs 14, which are distributed along the length of the substrate 11. Multiple vertical reinforcing ribs 14 are arranged, and the multiple vertical reinforcing ribs 14 are arranged at intervals along the outer periphery of the substrate 11.

[0037] It can be seen that by setting the vertical reinforcing ribs 14, the vertical rigidity of the mold shell 1 is improved, and the vertical resistance to deformation of the mold shell 1 is enhanced.

[0038] In another preferred embodiment, the mold shell 1 further includes stirrups 15. The first end of the stirrup 15 is fixedly connected to the connecting side plate 13, and the second end of the stirrup 15 passes through a plurality of vertical reinforcing ribs 14 in sequence and is then fixedly connected to another connecting side plate 13. Specifically, the side of the stirrup 15 closest to the base plate 11 is sequentially welded and fixedly connected to the outer surface of a plurality of vertical reinforcing ribs 14. A plurality of stirrups 15 are arranged, and the plurality of stirrups 15 are distributed at equal intervals along the height direction of the base plate 11.

[0039] It can be seen that by setting the stirrups 15, the rigidity of the mold shell 1 is enhanced, and the lateral deformation resistance of the mold shell 1 is improved.

[0040] In another preferred embodiment, both ends of the stirrup 15 are bent toward the direction close to the base plate 11.

[0041] It is known that if the stirrups 15 are arranged directly in a semi-circular shape, the two ends of the stirrups 15 are respectively connected to the outer edge of the connecting side plate 13. However, the outer edge of the connecting side plate has a small area and low connection strength, which is not conducive to the stability of the overall structure. However, if the two ends of the stirrups 15 are bent towards the direction close to the base plate 11 and the two ends of the stirrups 15 are respectively fixedly connected to the front of the connecting side plate 13, the connection area is large and the connection strength is high, which is conducive to improving the overall stability and extending the service life of the mold shell 1.

[0042] In another preferred embodiment, the mold shell 1 is semi-circular. Specifically, when the two mold shells 1 are joined together, a cylindrical casting cavity 4 is formed between the two mold shells 1. A cylindrical load-bearing column can be formed by placing a reinforcing cage in the casting cavity 4 and pouring concrete.

[0043] In some other embodiments of this application, the mold shell 1 can also be right-angled. When the mold shell 1 is right-angled, the casting cavity 4 enclosed by the two mold shells 1 is a square column, so that a square column can be cast.

[0044] In another preferred embodiment, the mold shell 1 further includes side reinforcing ribs 16. The first end of each side reinforcing rib 16 is fixedly connected to the connecting side plate 13, and the second end is fixedly connected to the vertical reinforcing rib 14. The side portion of each side reinforcing rib 16 is fixedly connected to the base plate 11. Specifically, multiple side reinforcing ribs 16 are arranged at equal intervals along the height direction of the base plate 11, and all side reinforcing ribs 16 are arranged on the side away from the casting cavity 4.

[0045] It is known that the arrangement of the side reinforcing ribs 16 strengthens the connection structure, improves the connection strength of the mold shell 1, and prevents damage caused by large deformation on both sides of the mold shell 1 during use.

[0046] In another preferred embodiment, the mold shell 1 further includes two lateral seepage-proof pads 17, which are respectively fixedly connected to two connecting side plates 13. The mold shell 1 also includes two end seepage-proof pads 18, which are respectively fixedly connected to two connecting end plates 12.

[0047] Specifically, the lateral seepage barrier 17 is fixedly connected to the connecting side plate 13 by adhesive bonding, and the end seepage barrier 18 is also fixedly connected to the connecting end plate 12 by adhesive bonding. It should be noted that both the lateral seepage barrier 17 and the end seepage barrier 18 are made of flexible materials, such as silicone, rubber, polyurethane, felt, etc., which are soft and capable of elastic deformation. With the lateral seepage barrier 17 in place, when the two mold shells 1 are connected, the lateral seepage barrier 17 on the two mold shells 1 come into contact. Under the tightening action of the fasteners 3, the two lateral seepage barrier 17 are compressed, preventing gaps from forming between them, thereby preventing concrete leakage from the gaps between the two side plates. Similarly, the end seepage barrier 18 has the same function and working principle as the lateral seepage barrier 17, and will not be described further here.

[0048] It is worth noting that the end waterproofing pad 18 is provided with through holes 121 and lifting holes 122 on the corresponding connecting end plate 12, and the lateral waterproofing pad 17 is also provided with through holes 121 on the corresponding connecting side plate 13.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel formwork for a sluice gate working bridge, characterized in that: The system includes a mold shell (1) and pull buckles (2) mounted on the mold shell (1) for applying downward pulling force. Two mold shells (1) are arranged, and the two sides of the two mold shells (1) are fastened together by fasteners (3). A casting cavity (4) is formed between the two mold shells (1). At least three pull buckles (2) are arranged at intervals on the top of the mold shell (1), and the included angle between two adjacent pull buckles (2) is less than 180 degrees. The pull buckle (2) includes a pull ring (21) and a fixing nut (22). A screw is provided on the pull ring (21). A through hole (121) is provided on the top of the mold shell (1). The screw of the pull ring (21) passes through the through hole (121). The fixing nut (22) is threadedly connected to the screw to fasten the pull ring (21) to the top of the mold shell (1).

2. The steel formwork for a sluice gate working bridge according to claim 1, characterized in that: The mold shell (1) includes a base plate (11), a connecting end plate (12) and a connecting side plate (13). Two connecting end plates (12) are arranged, and the two connecting end plates (12) are respectively arranged at both ends of the base plate (11). The through hole (121) is arranged on the connecting end plate (12). Two connecting side plates (13) are arranged, and the two connecting side plates (13) are respectively arranged on both sides of the base plate (11).

3. The steel formwork for a sluice gate working bridge according to claim 2, characterized in that: The mold shell (1) further includes vertical reinforcing ribs (14), which are distributed along the length of the substrate (11). Multiple vertical reinforcing ribs (14) are arranged, and the multiple vertical reinforcing ribs (14) are arranged at intervals along the outer periphery of the substrate (11).

4. The steel formwork for a sluice gate working bridge according to claim 3, characterized in that: The mold shell (1) also includes a stirrup (15), the first end of which is fixedly connected to the connecting side plate (13), and the second end of which passes through a plurality of vertical reinforcing ribs (14) in sequence and is fixedly connected to another connecting side plate (13).

5. The steel formwork for a sluice gate working bridge according to claim 4, characterized in that: Both ends of the stirrup (15) are bent toward the base plate (11).

6. The steel formwork for a sluice gate working bridge according to claim 5, characterized in that: The mold shell (1) is semi-circular or right-angled.

7. A steel formwork for a sluice gate working bridge according to any one of claims 3-6, characterized in that: The mold shell (1) also includes a side reinforcing rib (16), the first end of which is fixedly connected to the connecting side plate (13), the second end of which is fixedly connected to the vertical reinforcing rib (14), and the side of which is fixedly connected to the base plate (11).

8. A steel formwork for a sluice gate working bridge according to any one of claims 2-6, characterized in that: The mold shell (1) also includes two lateral seepage-proof pads (17), and the two lateral seepage-proof pads (17) are respectively fixedly connected to the two connecting side plates (13).

9. A steel formwork for a sluice gate working bridge according to any one of claims 2-6, characterized in that: The mold shell (1) also includes end anti-seepage pads (18), two end anti-seepage pads (18) are arranged, and the two end anti-seepage pads (18) are respectively fixedly connected to the two connecting end plates (12).

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