Splicing structure of steel cofferdam

Abstract

The utility model discloses a kind of splicing structure of steel cofferdam, it is related to building construction technology field, comprising: mutually parallel outer plate body and inner plate body, several outer plate bodies are spliced into large rectangular structure at head and tail, several inner plate bodies are spliced into small rectangular structure at head and tail, and large rectangular structure encloses small rectangular structure inside;Several bridging plates, several bridging plates are connected between outer plate body and inner plate body in parallel;Several reinforcing bars, reinforcing bar connects several bridging plates together;Several first cross beams and several second cross beams, first cross beam and second cross beam are oppositely inclined and set between outer plate body and inner plate body, and bridging plate is located between corresponding first cross beam and second cross beam.The utility model can improve the firmness and security of whole.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a splicing structure for steel cofferdams. Background Technology

[0002] Steel cofferdams are temporary protective structures used in building construction, playing a crucial role in preventing soil and water from entering the cofferdam and in excavating foundation pits. Traditional steel cofferdam structures rely on simple connections between the inner and outer walls, making them prone to deformation and instability under the lateral pressure of poured concrete. Furthermore, the inner walls lack effective reinforcement, thus posing significant safety hazards in deep-water foundation construction. Utility Model Content

[0003] In view of this, the present invention provides a splicing structure for steel cofferdams to solve the technical problems of traditional steel cofferdam structures, which rely solely on simple connections between inner and outer wall panels, making them prone to deformation and instability under the lateral pressure of concrete pouring, and the lack of effective reinforcement of the inner wall, resulting in significant safety hazards in deep water foundation construction.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A splicing structure for a steel cofferdam, comprising:

[0006] Parallel outer and inner panels, several outer panels are spliced ​​together end to end to form a large rectangular structure, several inner panels are spliced ​​together end to end to form a small rectangular structure, and the large rectangular structure surrounds the small rectangular structure.

[0007] A plurality of bridging plates are connected in parallel between the outer plate and the inner plate;

[0008] A plurality of reinforcing ribs, wherein the reinforcing ribs connect the plurality of bridge plates together;

[0009] A plurality of first crossbeams and a plurality of second crossbeams are provided, the first crossbeams and the second crossbeams being arranged at an angle relative to each other between the outer plate and the inner plate, and the bridging plate being located between the corresponding first crossbeams and second crossbeams.

[0010] Furthermore, it also includes a first reinforcing rib provided between the first crossbeam and the second crossbeam.

[0011] Furthermore, a first reinforcing rib and a second reinforcing rib are provided between the first crossbeam and the second crossbeam.

[0012] Furthermore, the second reinforcing rib is longer than the first reinforcing rib.

[0013] Furthermore, it also includes a surrounding panel, which is disposed on the inner side of the inner panel, and several surrounding panels are joined end to end to form a rectangular structure.

[0014] Furthermore, both sides of the enclosure are provided with recesses for connecting the inner panel.

[0015] Furthermore, a steel plate is provided inside the recess.

[0016] Furthermore, several first crossbeams are distributed in parallel, and several second crossbeams are distributed in parallel.

[0017] Furthermore, a cutting edge plate is inclinedly provided at the bottom of the inner plate, and a sealing plate is provided at the bottom of the cutting edge plate, the sealing plate being connected to the outer plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Triangular stability system: The inclined first and second crossbeams form triangular supports with the bridging plate and the outer / inner plate respectively, which greatly improves the lateral stiffness and deformation resistance.

[0020] 2. Double reinforcement with reinforcing ribs: An isosceles trapezoidal first reinforcing rib and a second reinforcing rib are added between the first and second crossbeams, with the latter being longer, to specifically enhance the load-bearing capacity of the far ends (connecting weak areas) of the first and second crossbeams.

[0021] 3. Reliable bottom sealing and efficient pouring: The cutting foot plate is inclined and welded to the bottom of the inner plate, working together with the sealing plate to lock the bottom of the pouring space, completely eliminating concrete leakage and simplifying the construction process.

[0022] 4. Internal anti-collapse reinforcement: A closed-end enclosure is added to the inner side of the inner slab to form a secondary support structure, which effectively resists the inward tilting force when the concrete solidifies and prevents the structure from collapsing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 for Figure 1 Side view.

[0025] Figure 3 This is a structural schematic diagram of the first and second crossbeams of this application.

[0026] Figure 4 This is another structural schematic diagram of the first and second crossbeams of this application.

[0027] Figure 5 This is a schematic diagram of the structure of the second embodiment of this application.

[0028] Figure 6 for Figure 5 A schematic diagram of the structure of the enclosure.

[0029] Figure 7 This is another structural schematic diagram of the enclosure panel of this application.

[0030] Figure 8 for Figure 7 Side view.

[0031] Explanation of reference numerals in the attached drawings: 1-Outer plate; 2-Inner plate; 3-Reinforcing rib; 4-Bridging plate; 5-First crossbeam; 6-Second crossbeam; 8-Cutting edge plate; 9-Sealing plate; 11-First reinforcing rib; 12-Second reinforcing rib; 13-Walling; 1301-Notch; 14-Steel plate. Detailed Implementation

[0032] 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.

[0033] refer to Figures 1 to 8 ,like Figure 1 and Figure 2 As shown, this embodiment provides a splicing structure for a steel cofferdam, mainly composed of several outer plates 1, several inner plates 2, several bridging plates 4, several reinforcing ribs 3, several first crossbeams 5, and several second crossbeams 6. The outer plates 1 are spliced ​​end to end to form a large rectangular structure, and the inner plates 2 are spliced ​​end to end to form a small rectangular structure. The large rectangular structure surrounds the small rectangular structure, and the outer plates 1 and inner plates 2 on the same side are parallel to each other and spaced apart, so that there is a pouring space between the outer plates 1 and inner plates 2 for pouring concrete. Several bridging plates 4 are connected parallel to each other in the horizontal and vertical directions between the outer plates 1 and inner plates 2. Through the connection of the bridging plates 4, the outer plates 1 and inner plates 2 can be connected, thereby improving the rigidity in both the inner and outer directions and improving the overall strength. To prevent the bridging plate 4 from tilting, a first crossbeam 5 and a second crossbeam 6 are installed between three adjacent bridging plates 4. Both the first crossbeam 5 and the second crossbeam 6 are tilted, with several first crossbeams 5 and several second crossbeams 6 distributed in parallel. The outer ends of the first crossbeams 5 and the second crossbeams 6 are simultaneously anchored to the outer end of the bridging plate 4 and the outer plate 1, while the inner ends of the first crossbeams 5 and the second crossbeams 6 are simultaneously connected to the inner end of the adjacent bridging plate 4 and the inner plate 2. This creates a stable triangular structure between the first crossbeams 5, the bridging plate 4, and the outer plate 1 / inner plate 2, as well as between the second crossbeams 6, the outer plate 1 / inner plate 2, and the bridging plate 4, significantly improving lateral stiffness and resistance to deformation.

[0034] A cutting edge plate 8 is welded obliquely to the bottom of the inner plate 2, and a sealing plate 9 is welded to the bottom of the cutting edge plate 8. The sealing plate 9 is tightly connected to the outer plate 1. By setting the cutting edge plate 8 and the sealing plate 9, the bottom of the pouring space enclosed by the outer plate 1 and the inner plate 2 can be sealed, ensuring the airtightness of the pouring cavity and simplifying the construction process, thus making the concrete pouring operation simpler and more convenient.

[0035] like Figure 3 As shown, in order to further enhance the reliability of the connection, a first reinforcing rib 11 is provided between the first crossbeam 5 and the second crossbeam 6. The plane of the first reinforcing rib 11 is an isosceles trapezoidal structure.

[0036] Preferably, such as Figure 4 As shown, a first reinforcing rib 11 and a second reinforcing rib 12 are provided between the first crossbeam 5 and the second crossbeam 6. The planes of the first reinforcing rib 11 and the second reinforcing rib 12 are both isosceles trapezoidal structures, and the length of the second reinforcing rib 12 is greater than the length of the first reinforcing rib 11. The first reinforcing rib 11 and the second reinforcing rib 12 are distributed in parallel, which can increase the load-bearing capacity of the ends of the first crossbeam 5 and the second crossbeam 6 that are far apart from each other (i.e., the weak area is connected), thereby improving the rigidity of the outer plate 1 and the inner plate 2.

[0037] As a preferred embodiment, such as Figure 5 , Figure 6 , and 7 and Figure 8 As shown, the splicing structure of the steel cofferdam also includes several surrounding plates 13 that are joined end to end to form a rectangular structure on the inner side of the inner plate 2. The surrounding plates 13 can reinforce the inner side of the inner plate 2, forming a secondary support structure to prevent tilting or collapse from the inside after the concrete is poured.

[0038] Preferably, both sides of the enclosure 13 are provided with recesses 1301, and the recesses 1301 are adjacent to the inner plate 2 through I-beams.

[0039] Even better, a steel plate 14 is provided in the notch 1301. The steel plate 14 is easy to weld with the I-beam, which reduces the processing difficulty and thus speeds up the construction.

[0040] In summary, this utility model, through the structure of reinforcing ribs 3, bridging plates 4, first crossbeams 5, second crossbeams 6, cutting edge plates 8, sealing plates 9, first reinforcing ribs 11, second reinforcing ribs 12, surrounding plates 13, notches 1301, and steel plates 14, with the bridging plates 4 arranged in layers, the first and second crossbeams 5 and 6 providing oblique support, the first and second reinforcing ribs 11 and 12 supplementing the connection strength, and the surrounding plates 13 preventing inward tilting, constructs a three-dimensional load distribution system. This can greatly improve the connection strength and compressive strength of the steel cofferdam, making the steel cofferdam more robust and safe after concrete pouring, providing a highly reliable support and protection foundation for deep-water foundation engineering.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A splicing structure for a steel cofferdam, characterized in that, include: Parallel outer plates (1) and inner plates (2), several outer plates (1) are spliced ​​together end to end to form a large rectangular structure, several inner plates (2) are spliced ​​together end to end to form a small rectangular structure, and the large rectangular structure surrounds the small rectangular structure. A plurality of bridging plates (4) are connected in parallel between the outer plate (1) and the inner plate (2); A plurality of reinforcing ribs (3) connect a plurality of bridging plates (4) together; A plurality of first crossbeams (5) and a plurality of second crossbeams (6) are arranged at an angle relative to each other between the outer plate (1) and the inner plate (2), and the bridging plate (4) is located between the corresponding first crossbeams (5) and second crossbeams (6).

2. The splicing structure of the steel cofferdam according to claim 1, characterized in that, It also includes a first reinforcing rib (11) provided between the first crossbeam (5) and the second crossbeam (6).

3. The splicing structure of the steel cofferdam according to claim 1, characterized in that, A first reinforcing rib (11) and a second reinforcing rib (12) are provided between the first crossbeam (5) and the second crossbeam (6).

4. The splicing structure of the steel cofferdam according to claim 3, characterized in that, The length of the second reinforcing rib (12) is greater than that of the first reinforcing rib (11).

5. The splicing structure of the steel cofferdam according to claim 1, characterized in that, It also includes a surrounding panel (13), which is disposed on the inner side of the inner panel (2), and several surrounding panels (13) are connected end to end to form a rectangular structure.

6. The splicing structure of the steel cofferdam according to claim 5, characterized in that, The enclosure (13) has recesses (1301) on both sides, which are used to connect the inner panel (2).

7. The splicing structure of the steel cofferdam according to claim 6, characterized in that, A steel plate (14) is provided inside the notch (1301).

8. The splicing structure of the steel cofferdam according to claim 1, characterized in that, Several first crossbeams (5) are distributed in parallel, and several second crossbeams (6) are distributed in parallel.

9. The splicing structure of the steel cofferdam according to claim 1, characterized in that, The bottom of the inner plate (2) is provided with a cutting foot plate (8) at an incline, and the bottom of the cutting foot plate (8) is provided with a sealing plate (9), which is connected to the outer plate (1).

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