Waterstop structure and construction method when construction joint waterstop plate is discontinuous

Abstract

The present invention provides a water-stopping structure and a construction method thereof in the case where the water-stop plate of a construction joint is discontinuous, in order to solve the problem of poor waterproofing effect of the construction joint in the case where the water-stop plate of the construction joint is discontinuous, and relates to the technical field of water-stopping of construction joints. The water-stopping structure in the case where the water-stop plate of a construction joint is discontinuous, the water-stopping structure comprises a water-stopping plate and a U-shaped water-swelling water-stopping strip; the water-stopping plate is transversely arranged in the waterproof section of the water-stopping plate, the U-shaped water-swelling water-stopping strip is arranged in the waterproof section of the non-water-stopping plate, and the opening is oriented toward the length direction of the waterproof section of the non-water-stopping plate, the outer side of the bottom plate of the U-shaped water-swelling water-stopping strip is connected to one end of the water-stopping plate, and the inner cavity of the U-shaped water-swelling water-stopping strip is filled with waterproof material. The present invention solves the problem of poor waterproofing effect of the construction joint in the case where the water-stop plate of the construction joint is discontinuous, and facilitates the grouting construction of the waterproof section of the non-water-stopping plate.

Description

Technical Field

[0001] The invention relates to the technical field of construction joint waterstopping, and in particular to a waterstop structure and a construction method thereof when a construction joint waterstop plate is discontinuous. Background Art

[0002] A construction joint is a joint formed between the concrete poured earlier and later during the concrete pouring process of a building due to the design requirements that the concrete needs to be poured in sections. For occasions where waterproofing is required, a waterproof structure needs to be set up at the construction joint. Traditional construction joint waterstopping generally uses waterstop steel plates or rubber waterstop plates for waterstopping, but for some special occasions, such as: construction joints cast with the top plate inverted, there are cases where the waterstop plates cannot be set continuously. That is, the waterstop steel plates or rubber waterstop plates can only be set up in one section of the seam waterstop. In this case, the waterproofing of the other section of the construction joint is mainly achieved by setting an expansion waterstop strip. This method has poor waterproofing effect and it is difficult to ensure the waterproofing effect of the waterstop joint. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water-stop structure and a construction method thereof when the construction joint water-stop plate is discontinuous, so as to solve the problem of poor waterproof effect of the construction joint when the construction joint water-stop plate is discontinuous.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a water-stop structure in the case where the construction joint waterstop plate is discontinuous, the construction joint includes a waterstop plate waterproof section where the waterstop plate can be set and a non-waterstop plate waterproof section where the waterstop plate cannot be set, the water-stop structure includes a waterstop plate and a U-shaped water-swelling waterstop strip; the waterstop plate is horizontally arranged in the waterstop plate waterproof section, the U-shaped water-swelling waterstop strip is arranged in the non-waterstop plate waterproof section, and the opening is facing the length direction of the non-waterstop plate waterproof section, the outer side of the bottom plate of the U-shaped water-swelling waterstop strip is connected to one end of the waterstop plate, and the inner cavity of the U-shaped water-swelling waterstop strip is filled with waterproof material.

[0005] Furthermore, water-swelling waterstop strips are provided on both sides of the joint between the waterstop plate and the U-shaped water-swelling waterstop strip. The water-swelling waterstop strip is fitted with the waterstop plate, and one end is in contact with the outer side of the bottom plate of the U-shaped water-swelling waterstop strip.

[0006] Furthermore, the water stop plate is a steel plate or a rubber plate.

[0007] Furthermore, the waterproof material is ultrafine cement, epoxy resin, acrylic acid or foamed polyurethane.

[0008] The present invention also provides a construction method for a waterstop structure in the case where the construction joint waterstop plate is discontinuous, comprising:

[0009] tying the steel bars on both sides of the construction joint;

[0010] The waterstop plate is provided at the waterproof section of the waterstop plate, and the U-shaped water-expandable waterstop strip is provided at the waterproof section other than the waterstop plate;

[0011] pouring concrete on both sides of the construction joint;

[0012] The waterproof material is filled into the inner cavity of the U-shaped water-swellable waterstop strip until the waterproof material fills the inner cavity gap of the U-shaped water-swellable waterstop strip.

[0013] Furthermore, filling the inner cavity of the U-shaped water-swelling waterstop with waterproof material is completed by a full-section grouting pipe arranged in the inner cavity of the U-shaped water-swelling waterstop and a grouting conduit arranged on one side of the U-shaped water-swelling waterstop and connected to the full-section grouting pipe at one end, wherein the full-section grouting pipe is arranged along the length direction of the non-waterstop plate waterproof section.

[0014] The beneficial effects of the present invention are as follows: the water-stop structure and construction method thereof for a construction joint water-stop plate discontinuous in the present invention adopts a method in which a U-shaped water-swelling water-stop strip with an opening facing the extension direction of the non-water-stop plate waterproof section is provided in the non-water-stop plate waterproof section of the construction joint, and the inner cavity of the U-shaped water-swelling water-stop strip is filled with waterproof material. The U-shaped water-swelling water-stop strip can be used to restrict the flow of waterproof material, facilitate the filling of waterproof material in the non-water-stop plate waterproof section, and make the waterproof material filling more dense. The U-shaped water-swelling water-stop strip and the waterproof material form a multi-layer waterproof structure, which can prevent water from passing through the non-water-stop plate waterproof section. At the transition between the water-stop plate waterproof section and the non-water-stop plate waterproof section, the outer side of the bottom plate of the U-shaped water-swelling water-stop strip 3 is connected to one end of the water-stop plate, and the waterproof material is filled inside. In the length direction of the construction joint, the U-shaped water-swelling water-stop strip can only expand in the direction close to the water-stop plate, thereby making it difficult for water to pass through the U-shaped water-swelling water-stop strip and the water-stop plate. The waterstop plate waterproof section is provided with a waterstop plate, so water is difficult to pass through the waterstop plate waterproof section. Therefore, the above structure solves the problem of poor construction joint waterproofing effect when the construction joint waterstop plate is discontinuous, and facilitates grouting construction in the non-waterstop plate waterproof section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the water-stop structure of the present invention;

[0016] Figure 2 yes Figure 1 Cross-sectional view along AA;

[0017] Figure 3 yes Figure 1 Cross-sectional view along BB;

[0018] As shown in the figure: construction joint 1, waterstop plate 2, U-shaped water-swelling waterstop strip 3, waterstop plate waterproof section 11, non-waterstop plate waterproof section 12, waterproof material 4, water-swelling waterstop strip 5, full-section grouting pipe 6, and grouting conduit 7. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] like Figures 1 to 3 As shown, the water-stop structure of the construction joint of the present invention is in the case where the waterstop plate is discontinuous. The construction joint 1 includes a waterstop plate waterproof section 11 where a waterstop plate can be set and a non-waterstop plate waterproof section 12 where a waterstop plate cannot be set. The water-stop structure includes a waterstop plate 2 and a U-shaped water-swelling waterstop strip 3 with a U-shaped structure. The waterstop plate 2 is transversely arranged in the waterstop plate waterproof section 11 to waterproof the waterstop plate waterproof section 11. The U-shaped water-swelling waterstop strip 3 is embedded in the non-waterstop plate waterproof section 12, and the opening is facing the length direction of the non-waterstop plate waterproof section 12. The outer side of the bottom plate of the U-shaped water-swelling waterstop strip 3 is in contact with one end of the waterstop plate 2, and the inner cavity of the U-shaped water-swelling waterstop strip 3 (inside the construction joint included in the U-shaped water-swelling waterstop strip 3) is filled with a waterproof material 4.

[0021] The waterstop structure of the present invention addresses the special situation where the waterstop plate 2 can only be set in one section of the construction joint. A U-shaped water-swelling waterstop strip 3 with an opening facing the extension direction of the non-waterstop plate waterproof section 12 is set in the other section of the construction joint (the non-waterstop plate waterproof section), and the inner cavity of the U-shaped water-swelling waterstop strip 3 is filled with waterproof material 4. In this way, the U-shaped water-swelling waterstop strip 3 can be used to limit the flow of waterproof material 4, facilitate the filling of waterproof material 4 in the non-waterstop plate waterproof section 12, and make the waterproof material 4 fill more densely. The U-shaped water-swelling waterstop strip 3 and the waterproof material 4 form a multi-layer waterproof structure, which can prevent water from passing through the non-waterstop plate waterproof section. At the transition between the waterstop plate waterproof section 11 and the non-waterstop plate waterproof section 12, a method is adopted in which the outer side of the bottom plate of the U-shaped water-swelling waterstop strip 3 is connected to one end of the waterstop plate 2, and the waterproof material 4 is filled on the inside. This allows the U-shaped water-swelling waterstop strip 3 to expand only toward the waterstop plate 2 in the length direction of the construction joint, thereby ensuring the tight contact between the U-shaped water-swelling waterstop strip 3 and the waterstop plate 2, and making it difficult for water to pass through the U-shaped water-swelling waterstop strip 3 and the waterstop plate 2. Since the waterstop plate waterproof section 11 is provided with the waterstop plate 2, it is also difficult for water to pass through the waterstop plate waterproof section 11. Therefore, the above structure solves the problem of poor waterproofing effect of the construction joint when the construction joint waterstop plate is discontinuous, and facilitates the grouting construction of the non-waterstop plate waterproof section 12.

[0022] In order to further ensure the waterproofness of the junction between the U-shaped water-swelling waterstop strip 3 and the waterstop plate 2, Figure 2As shown, water-swelling waterstop strips 5 are provided on both sides of the junction between the waterstop plate 2 and the U-shaped water-swelling waterstop strip 3. The water-swelling waterstop strip 5 is fitted to the waterstop plate 2, with one end abutting the outer side of the bottom plate of the U-shaped water-swelling waterstop strip 3. This creates a multi-layer waterproof structure at the junction of the U-shaped water-swelling waterstop strip 3 and the waterstop plate 2, making it more difficult for water to pass through the junction between the U-shaped water-swelling waterstop strip 3 and the waterstop plate 2, thereby improving the waterproofing effect of the construction joint.

[0023] In order to facilitate the filling of the waterproof material 4 , a full-section grouting pipe 6 for filling the waterproof material 4 is provided in the inner cavity of the U-shaped water-swellable waterstop strip 3 .

[0024] The water stop plate 2 of the present invention can be made of steel plate or rubber plate, and the specific construction method of the water stop plate 2 is the same as that of the existing water stop plate. The waterproof material 4 can be made of various existing waterproof grouting materials, such as ultra-fine cement, epoxy resin, acrylic acid, foamed polyurethane, etc.

[0025] The specific construction method of the water-stop structure in the case of discontinuous water-stop plates in the above-mentioned construction joints is as follows:

[0026] Step 1: tying the steel bars on both sides of the construction joint 1;

[0027] Step 2: Install the waterstop plate 2 at the waterstop plate waterproof section 11, and install the U-shaped water-expandable waterstop strip 3 at the non-waterstop plate waterproof section 12;

[0028] Step 3: pouring concrete on both sides of the construction joint 1;

[0029] Step 4: After the concrete blocks on both sides of the construction joint 1 reach the strength requirements, fill the inner cavity of the U-shaped water-swellable waterstop strip 3 with waterproof material 4 until the inner cavity of the U-shaped water-swellable waterstop strip 3 is completely filled with waterproof material 4.

[0030] The above construction method facilitates the construction of the above water-stop structure.

[0031] In step 2, the water stop plate 2 can be fixed to the concrete block reinforcement cage on both sides of the construction joint 1 by bundling or welding.

[0032] In order to facilitate the filling of the waterproof material 4 and ensure the filling effect, specifically, Figure 3As shown, filling the inner cavity of the U-shaped water-swellable waterstop strip 3 with the waterproof material 4 is accomplished by a full-section grouting pipe 6 provided in the inner cavity of the U-shaped water-swellable waterstop strip 3 and a grouting conduit 7 provided on one side of the U-shaped water-swellable waterstop strip 3 and connected to the full-section grouting pipe 6 at one end. The full-section grouting pipe 6 is provided along the length direction of the non-waterstop plate waterproof section 12. It is understandable that the grouting conduit 7 should not contact the U-shaped water-swellable waterstop strip 3 when it is provided. The full-section grouting pipe 6 and the grouting conduit 7 can be provided in a preset manner.

Claims

1. A waterstop structure in a construction joint where the waterstop plate is discontinuous, wherein the construction joint (1) comprises a waterstop plate waterproof section (11) where the waterstop plate can be provided and a non-waterstop plate waterproof section (12) where the waterstop plate cannot be provided, characterized in that: The water-stop structure comprises a water-stop plate (2) and a U-shaped water-swelling water-stop strip (3); the water-stop plate (2) is transversely arranged in the water-stop plate waterproof section (11); the U-shaped water-swelling water-stop strip (3) is arranged in the non-water-stop plate waterproof section (12), and the opening faces the length direction of the non-water-stop plate waterproof section (12); the outer side of the bottom plate of the U-shaped water-swelling water-stop strip (3) is connected to one end of the water-stop plate (2); and the inner cavity of the U-shaped water-swelling water-stop strip (3) is filled with a waterproof material (4).

2. The water-stop structure in the case where the construction joint water-stop plate is discontinuous as claimed in claim 1, characterized in that: Water-expandable waterstop strips (5) are provided on both sides of the abutment between the waterstop plate (2) and the U-shaped water-expandable waterstop strip (3). The water-expandable waterstop strip (5) is fitted with the waterstop plate (2), and one end of the waterstop strip is in abutment with the outer side of the bottom plate of the U-shaped water-expandable waterstop strip (3).

3. The water-stop structure in the case where the construction joint water-stop plate is discontinuous as claimed in claim 1, characterized in that: The water stop plate (2) is a steel plate or a rubber plate.

4. The water-stop structure in the case where the construction joint water-stop plate is discontinuous as claimed in claim 1, characterized in that: The waterproof material (4) is ultra-fine cement, epoxy resin, acrylic acid or foamed polyurethane.

5. The construction method of the water-stop structure in the case where the construction joint water-stop plate is discontinuous according to any one of claims 1 to 4, characterized in that: include: tying the steel bars on both sides of the construction joint (1); The water stop plate (2) is provided at the water stop plate waterproof section (11), and the U-shaped water-expandable water stop strip (3) is provided at the non-water stop plate waterproof section (12); pouring concrete on both sides of the construction joint (1); The waterproof material (4) is filled into the inner cavity of the U-shaped water-swelling waterstop strip (3) until the waterproof material (4) completely fills the inner cavity gap of the U-shaped water-swelling waterstop strip (3).

6. The construction method of the water-stop structure under the discontinuous condition of the construction joint water-stop plate as claimed in claim 5, characterized in that, Filling the inner cavity of the U-shaped water-swelling waterstop strip (3) with the waterproof material (4) is accomplished by a full-section grouting pipe (6) disposed in the inner cavity of the U-shaped water-swelling waterstop strip (3) and a grouting conduit (7) disposed on one side of the U-shaped water-swelling waterstop strip (3) and connected to the full-section grouting pipe (6) at one end, wherein the full-section grouting pipe (6) is disposed along the length direction of the non-waterstop plate waterproof section (12).

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