Sawtooth-shaped water stop steel plate

Abstract

The utility model provides a zigzag water stop steel plate, and belongs to the technical field of water stop steel plates. The problem that an existing water stop steel plate is poor in waterproof effect is solved. The sawtooth-shaped water stop steel plate comprises a sawtooth-shaped main body, wing parts arranged in the horizontal direction are arranged on the two sides of the main body, the wing parts are in a flat plate shape, and the main body and the two wing parts are formed by bending a steel plate. The zigzag water stop steel plate has the advantage of being good in waterproof effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-stop steel plates and relates to a zigzag water-stop steel plate. Background Art

[0002] When pouring concrete slabs in large-scale construction projects, post-cast joints are often required to prevent harmful cracks in cast-in-place reinforced concrete structures due to uneven shrinkage or settlement. However, pouring post-cast joints after the concrete has initially set can result in loose joints and cold joints.

[0003] In order to prevent water from seeping into the cold joint, it is often necessary to horizontally set a waterstop steel plate at the cold joint of the post-cast strip during construction. The existing waterstop steel plate, for example, Chinese patent literature discloses a waterstop steel plate assembly [patent number: 202320495382.4; application publication number: CN219240636U], which includes a first waterstop steel plate, a second waterstop steel plate and a weld. The first waterstop steel plate and the second waterstop steel plate are both composed of a main body and a wing plate. The wing plates are distributed on both sides of the main body and form a certain angle with the main body. One end of the first waterstop steel plate is welded to one end of the second waterstop steel plate and a weld is formed at the connection position between the two. The waterstop steel plate assembly also includes an auxiliary welding block. The auxiliary welding block is tightly buckled directly above the weld. The auxiliary welding block is adapted to the contact surface of the first waterstop steel plate and the second waterstop steel plate. A closed annular weld is formed between the edge of the auxiliary welding block and the contact surface of the first waterstop steel plate and the second waterstop steel plate at the bottom, and the annular weld is a full weld.

[0004] The first waterstop steel plate and the second waterstop steel plate of this structure are both composed of a main body and wing plates. The wing plates are distributed on both sides of the main body and form a certain angle with the main body, while the main body is a flat plate. This makes the bonding strength between the first waterstop steel plate and the second waterstop steel plate and the poured concrete poor, and there may be gaps, which reduces the waterproof effect. Summary of the Invention

[0005] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to propose a zigzag waterstop steel plate, the technical problem to be solved is how to improve the waterproof effect of the waterstop steel plate.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a serrated waterstop steel plate, characterized in that it includes a serrated main body, both sides of the main body have wings arranged in a horizontal direction, the wings are flat, and the main body and the two wings are formed by bending a steel plate.

[0007] The main body of this waterstop steel plate is zigzag-shaped, so that part of the concrete can be embedded in the interior of the main body, so that the waterstop steel plate can better adapt to the contraction and expansion of the concrete, and the bonding effect between the waterstop steel plate and the concrete is better, thereby improving the waterproof effect of the waterstop steel plate. At the same time, the main body is zigzag-shaped, forming multiple waterstop surfaces arranged continuously up and down, further improving the waterproof effect. The wings are arranged in the horizontal direction, which is conducive to the leveling of the waterstop steel plate during installation and makes it easy to take and put the waterstop steel plate. The main body and the two wings are formed by bending a steel plate, which makes the waterstop steel plate easy to process and form.

[0008] In the aforementioned serrated waterstop steel plate, the wing portion has a horizontal width of 0.5-1 sawtooth. This small wing portion occupies a small portion of the waterstop steel plate, leaving the main body with a larger portion. This improves the waterstop steel plate's waterproofing effectiveness while ensuring the wing portion's leveling and ease of access. The width of one sawtooth is the distance between the two ends of the V-shaped opening.

[0009] In the above-mentioned zigzag-shaped water-stopping steel plate, the thickness of the main body and the wing portion is between 2 and 4 mm. This structure provides the water-stopping steel plate with sufficient strength.

[0010] In the above-mentioned zigzag waterstop steel plate, the main body and the wing parts are both made of low-carbon steel, so that the waterstop steel plate has good corrosion resistance and strength.

[0011] In the aforementioned zigzag-shaped waterstop steel plate, the concrete structure includes a post-cast strip and pre-cast concrete located on either side of the post-cast strip. The centerline of the main body is arranged along the dividing line between the post-cast strip and the pre-cast concrete. The waterstop steel plate is located in the middle of the post-cast strip along the vertical direction, with half of the main body located in the post-cast strip and the other half located in the pre-cast concrete. This structure rationally arranges the position of the waterstop steel plate, allowing it to better connect the post-cast strip and the pre-cast concrete, improving the strength of the concrete structure while ensuring the same waterproofing effect on both sides, thereby improving the waterproofing effect of the waterstop steel plate.

[0012] In the aforementioned zigzag-shaped waterstop steel plate, the pre-cast concrete includes a downwardly projecting waterproof portion, partially located directly below the post-cast strip. A waterstop caulking joint is located between the two waterproof portions, and the caulking joint is filled with caulking paste. This structure is equivalent to adding an additional waterproof structure below the waterstop steel plate, providing an initial waterproofing layer through the caulking joint and caulking paste, thereby improving the waterproofing effect.

[0013] In the aforementioned zigzag-shaped waterstop steel plate, the width of the waterstop caulking joint is much smaller than the width of the post-cast strip, and the waterstop caulking joint is located directly below the center of the post-cast strip. This structure is rationally designed and improves waterproofing effectiveness. For example, if the post-cast strip is one meter wide, the width of the waterstop caulking joint can be three centimeters.

[0014] In the aforementioned zigzag waterstop steel plate, a baseplate cushion is provided directly below the concrete structure, and a waterproof layer is provided between the baseplate cushion and the concrete structure. The waterproof layer includes a waterstop strip, which is located directly below the waterstop caulking and is much wider than the width of the waterstop caulking. In this structure, the waterproof layer and the waterstop strip both provide a waterproof effect, preventing water from entering the waterstop caulking, further enhancing the waterproof effect. For example, the width of the waterstop caulking is three centimeters, and the width of the waterstop strip is fifty centimeters.

[0015] Compared with the prior art, the serrated waterstop steel plate provided by the present invention has the following advantages:

[0016] 1. The main body of the waterstop steel plate is serrated, and the main body occupies a large proportion, so that the waterstop steel plate can better adapt to the contraction and expansion of concrete, and the bonding effect between the waterstop steel plate and concrete is better, thereby improving the waterproof effect of the waterstop steel plate.

[0017] 2. The main body of the water-stop steel plate is zigzag-shaped, forming multiple water-stop surfaces arranged continuously up and down to improve the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the waterstop steel plate.

[0019] Figure 2 This is the main view of the overall structure of the waterstop steel plate.

[0020] Figure 3 This is a status diagram of the waterstop steel plate when used in a construction environment.

[0021] In the figure, 1. Main body; 2. Wing; 3. Post-pouring strip; 4. Pre-poured concrete; 41. Waterproof part; 5. Waterstop caulking; 6. Grease caulking; 7. Bottom plate cushion; 8. Waterproof layer; 9. Waterstop. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1 、 Figure 2 As shown, the serrated water-stop steel plate includes a main body 1 and two wings 2 .

[0024] The main body 1 is serrated and located in the middle, the wing 2 is flat and arranged in the horizontal direction, and the two wings 2 are respectively located on both sides of the main body 1. The main body 1 and the two wings 2 are formed by bending a steel plate. The main body 1 and the wings 2 are both made of low-carbon steel.

[0025] In this embodiment, the horizontal width of the wing 2 is 0.75 sawtooth widths. In actual production, the width of the wing 2 can be 0.5 or 1 sawtooth widths. In this embodiment, the thickness of the main body 1 and the wing 2 is 3 mm. In actual production, the thickness of the main body 1 and the wing 2 can be 2 mm or 4 mm.

[0026] like Figure 3 As shown, the concrete structure includes a post-cast strip 3 and pre-cast concrete 4 located on both sides of the post-cast strip 3. The center line of the main body 1 is set along the dividing line between the post-cast strip 3 and the pre-cast concrete 4. The waterstop steel plate is located in the middle of the post-cast strip 3 in the vertical direction. Half of the main body 1 is located in the post-cast strip 3, and the other half of the main body 1 is located in the pre-cast concrete 4.

[0027] The precast concrete 4 includes a downwardly projecting waterproof portion 41, which is partially located directly below the post-cast strip 3. A water-stop caulking joint 5 is formed between the two waterproof portions 41 and is filled with caulking paste 6. The width of the water-stop caulking joint 5 is much smaller than that of the post-cast strip 3 and is located directly below the center of the post-cast strip 3.

[0028] A base plate cushion layer 7 is provided directly below the concrete structure, and a waterproof layer 8 is provided between the base plate cushion layer 7 and the concrete structure. The waterproof layer 8 has a waterstop 9, which is located directly below the waterstop joint 5, and the width of the waterstop 9 is much larger than the width of the waterstop joint 5.

[0029] During construction, steel bars are laid in the first poured concrete 4 and the post-cast strip 3, and then the waterstop steel plate is fixed in the set position. After the first poured concrete 4 solidifies, the post-cast strip 3 is poured after a set time, so that the waterstop steel plate is embedded in the first poured concrete 4 and the post-cast strip 3.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0031] Although this document frequently uses terms such as main body 1, wing 2, post-cast strip 3, pre-cast concrete 4, waterproof portion 41, water-stop caulking 5, caulking paste 6, baseboard cushion 7, waterproof layer 8, and waterstop 9, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A serrated water-stop steel plate, characterized in that: It comprises a sawtooth-shaped main body (1), both sides of the main body (1) are provided with wings (2) arranged in the horizontal direction, the wings (2) are in the shape of a flat plate, and the main body (1) and the two wings (2) are formed by bending a steel plate.

2. The sawtooth waterstop steel plate according to claim 1, characterized in that: In the horizontal direction, the width of the wing portion (2) is 0.5-1 sawtooth width.

3. The sawtooth waterstop steel plate according to claim 1, characterized in that: The thickness of the main body (1) and the wing (2) is between 2 and 4 mm.

4. A serrated waterstop steel plate according to claim 1, 2 or 3, characterized in that: The main body (1) and the wing (2) are both made of low carbon steel.

5. A serrated waterstop steel plate according to claim 1, 2 or 3, characterized in that: The concrete structure comprises a post-cast strip (3) and pre-cast concrete (4) located on both sides of the post-cast strip (3); the center line of the main body (1) is arranged along the boundary line between the post-cast strip (3) and the pre-cast concrete (4); the water stop steel plate is located in the middle of the post-cast strip (3) in the vertical direction; half of the main body (1) is located in the post-cast strip (3) and the other half of the main body (1) is located in the pre-cast concrete (4).

6. The sawtooth waterstop steel plate according to claim 5, characterized in that: The first cast concrete (4) comprises a waterproof portion (41) protruding downward, wherein the waterproof portion (41) is partially located directly below the post-cast strip (3), and a water-stopping caulking joint (5) is provided between two of the waterproof portions (41), wherein the water-stopping caulking joint (5) is filled with caulking paste (6).

7. The sawtooth waterstop steel plate according to claim 6, characterized in that: The width of the water-stopping caulking joint (5) is much smaller than the width of the post-casting strip (3), and the water-stopping caulking joint (5) is located directly below the center of the post-casting strip (3).

8. The sawtooth waterstop steel plate according to claim 6, characterized in that: A base plate cushion layer (7) is provided directly below the concrete structure, a waterproof layer (8) is provided between the base plate cushion layer (7) and the concrete structure, a water stop strip (9) is provided in the waterproof layer (8), and the water stop strip (9) is located directly below the water stop caulking (5), and the width of the water stop strip (9) is much greater than the width of the water stop caulking (5).

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