Basement post-cast strip waterproof device

By using a waterproofing device consisting of grooves, support frames, support columns, and reinforcing bars in the post-cast strip of the basement, the structural damage and durability problems caused by concrete expansion and waterproofing were solved, achieving a more stable and safer waterproofing effect.

CN223853396UActive Publication Date: 2026-01-30中交投资南京有限公司
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Patent Information

Application Number
CN202520376222.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-30
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing waterproofing technologies use concrete that expands automatically for waterproofing, which leads to structural damage and safety hazards. Furthermore, these structures are prone to failure in harsh environments and have poor durability.

Method used

A waterproofing device for basement post-pouring strips, consisting of grooves, support frames, support columns, reinforcing ribs, and waterproof membranes, is used to enhance structural stability and waterproofing performance.

Benefits of technology

It improves the stability and crack resistance of the post-pouring strip, enhances the waterproofing effect, and ensures that it does not fail in harsh environments, making it safe and reliable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a basement post-cast strip waterproof device and relates to the technical field of post-cast strip waterproofness, the basement post-cast strip waterproof device comprises a strip groove and a waterproof bottom layer, a cast strip opening is formed in the strip groove, a post-cast strip is cast in the cast strip opening, a supporting frame is arranged on the lower portion of the strip groove, and a supporting column is arranged in the middle of the lower end of the supporting frame. The lower end of the supporting column is fixed to the middle of the inner bottom face of the waterproof bottom layer, a lower waterproof roll is arranged on the upper surface of the waterproof bottom layer, multiple sets of first reinforcing ribs penetrate through the waterproof bottom layer, multiple sets of side horizontal rods are arranged on the left side and the right side of the upper end of a belt groove, and the side horizontal rods are of a rectangular solid horizontal rod structure. And the length of the side horizontal rod is the same as that of the lower waterproof coiled material. According to the post-cast strip, the pit bending strength of the post-cast strip is enhanced, the crack resistance of the post-cast strip is enhanced, large-area external water seepage prevention is carried out below the post-cast strip, the post-cast strip is safer to seal and more comprehensive and reliable in water prevention, and the post-cast strip is more compact, firmer and more durable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to post-pouring band waterproof technical field, specifically relates to a basement post-pouring band waterproof device. BACKGROUND

[0002] The basement post-pouring band is a construction technology for preventing the reinforced concrete structure from producing cracks due to temperature change, uneven shrinkage or settlement difference in building engineering. It is a temporary construction joint prearranged at the basement floor, wall, beam and other parts, and after a period of time, the concrete is poured again to make the structure into a whole. When the basement floor post-pouring band waterproof structure is actually used, due to stress release, it may cause the post-pouring band to deform, thereby causing gaps at the sealing part of the post-pouring band, reducing its sealing and waterproof performance, and the commonly used waterproof band has limited corrosion resistance and waterproof and anti-permeability performance.

[0003] Basic concept and function of post-pouring band: the post-pouring band is a rigid concrete joint, mainly used for structures that are not suitable for setting flexible deformation joints and tend to be stable in later deformation. It is particularly important in high-rise buildings, which can effectively improve the bearing capacity of the basement and prevent the occurrence of structural cracks, thereby improving the overall quality and durability of the building. The setting principles of the post-pouring band include the applicable scope and the location and size of the post-pouring band. The applicable scope is applicable to the post-pouring band of the basement floor, outer wall, inner wall, top plate, floor slab of the building and the foundation of large structures and large equipment. The location and size of the post-pouring band must be based on the location and size of the design requirements, and the width is preferably 700-1000mm. If it needs to be moved due to construction, it must go through the design institute and the matters needing attention in the construction process.

[0004] Post-pouring band concrete pouring: concrete strength test blocks and anti-permeability strength test blocks should be left, and the strength grade should not be lower than that of the two sides of the concrete, and should be improved by one strength grade. Water stop treatment: the main reinforcement of the structure at the post-pouring band should not be disconnected in the joint, and if it must be disconnected, the main reinforcement lap length should be greater than 45 times the main reinforcement diameter. Maintenance measures after construction: the maintenance time of the post-pouring band concrete should not be less than 14 days to ensure good connection and prevent cracks. Protection measures: after the post-pouring band of the foundation pile cap is left, protection measures such as wood cover or brick protection should be taken to prevent garbage and sundries from falling in. Sealing and removal of the post-pouring band: before sealing, the formwork of the post-pouring band should be provided with a layer of steel mesh, and the floating slurry on the entire concrete surface should be carefully removed and roughened before sealing. Remove garbage and sundries: completely remove garbage and sundries in the post-pouring band, and wet it with overnight watering and lay cement paste.

[0005] In the prior art (publication number CN222065569U) a basement floor post-pouring band advanced waterproof structure specification is mentioned "one end of the basement floor is reserved for post-pouring band, the basement floor post-pouring band advanced waterproof structure, through the filling layer, not only facilitates the stress release of the basement floor, but also automatically expands after encountering water to automatically seal the post-pouring band that has changed due to stress release, and through the setting of the support layer and the waterproof layer, the water stop can be protected", but the waterproof structure in the prior art basically adopts concrete automatic expansion waterproof, a large amount of ettringite can be formed in the condensation hardening process, the mechanism is uncontrollable, which can easily lead to structural damage and safety problems, and long-term exposure in harsh environments such as high temperature, high humidity or chemical corrosion environment can cause the waterproof layer to fail, and it is not solid, safe and durable. Utility model content

[0006] To overcome the defects of the prior art, a basement post-pouring band waterproof device is provided to solve the problem that the waterproof structure in the prior art basically adopts concrete automatic expansion waterproof, a large amount of ettringite can be formed in the condensation hardening process, the mechanism is uncontrollable, which can easily lead to structural damage and safety problems, and long-term exposure in harsh environments such as high temperature, high humidity or chemical corrosion environment can cause the waterproof layer to fail, and it is not solid, safe and durable.

[0007] To achieve the above-mentioned purpose, a basement post-pouring band waterproof device is provided, which comprises a groove and a waterproof bottom layer, a pouring band opening is formed in the groove, and a post-pouring band is poured in the pouring band opening, a support frame is arranged at the lower part of the groove, a support column is arranged at the middle of the lower end of the support frame, the lower end of the support column is fixed to the middle of the inner bottom surface of the waterproof bottom layer, a lower waterproof roll is arranged on the upper surface of the waterproof bottom layer, and a plurality of first reinforcing bars are arranged in the waterproof bottom layer.

[0008] Further, a plurality of side horizontal rods are arranged at the upper end of the groove on both sides, the side horizontal rods adopt a rectangular solid horizontal rod structure, the length of the side horizontal rod is the same as the length of the lower waterproof roll, and the side horizontal rod and the lower waterproof roll are arranged in parallel on both sides.

[0009] Further, a plurality of second reinforcing bars are arranged longitudinally in the post-pouring band, a compression-resistant frame is arranged between the upper ends of every five groups of second reinforcing bars, and the compression-resistant frame is embedded in the post-pouring band.

[0010] Further, a plurality of left inclined plates and right inclined plates are arranged at the upper part of the compression-resistant frame, the opposite ends of the left inclined plate and the right inclined plate are inclined upward and fixed together, and a partition plate is arranged on the lower side of the other end of the left inclined plate and the right inclined plate.

[0011] Further, the support frame adopts carbon steel material, and the support frame is perpendicular to the support column, and the support frame and the support column adopt an integrated structure, and the lower end of the support column is embedded in the middle of the waterproof bottom layer.

[0012] Further, the support column is fixed with the reinforcing sheet on the left and right sides, and the outer surface of the reinforcing sheet is provided with the outer waterproof coiled material, and the two groups of outer waterproof coiled materials on the left and right sides are fixed with a plurality of first fastening bolts.

[0013] Further, the reinforcing sheet and the outer waterproof coiled material are fixed with a plurality of second fastening bolts between the upper part of the waterproof bottom layer, and the first reinforcing bar and the second reinforcing bar penetrating in the waterproof bottom layer adopt a long strip steel structure with a circular cross section.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The setting of the groove can not only be used as a stable installation foundation structure of the post-cast strip, but also the plurality of side horizontal rods fixed on the left and right sides of the upper end of the groove help to strengthen the strength of the double-sided structure of the post-cast strip, and are more stable and firm.

[0016] 2. The plurality of second reinforcing bars penetrating in the post-cast strip in the present application help to strengthen the pit bending strength of the post-cast strip, and the compression frame arranged on the upper end of the plurality of second reinforcing bars in the same row also strengthens the crack resistance of the post-cast strip, so that the post-cast strip is more solid and durable.

[0017] 3. The setting of the support frame, the support column, the reinforcing sheet and the outer waterproof coiled material in the present application is to enhance the support strength and stability of the groove, so that it is safer and more reliable, and the outer waterproof coiled material and the lower waterproof coiled material are used for external water seepage prevention, which is safer and more reliable, and the waterproof is more comprehensive and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the embodiment of the present application;

[0019] Figure 2 It is a front view schematic diagram of the groove of the embodiment of the present application;

[0020] Figure 3 It is a top view schematic diagram of the groove of the embodiment of the present application;

[0021] Figure 4 It is an effect diagram of the compression frame of the embodiment of the present application;

[0022] Figure 5 It is a front view schematic diagram of the compression frame of the embodiment of the present application.

[0023] In the diagram: 1. Groove; 10. Side horizontal bar; 11. Post-cast strip; 12. Compression frame; 120. Partition plate; 121. Left inclined plate; 122. Right inclined plate; 13. Second reinforcing rib; 14. Casting strip opening; 15. Support frame; 16. Support column; 17. Reinforcing sheet; 18. Outer waterproof membrane; 19. Second fastening bolt; 100. First fastening bolt; 2. Waterproof bottom layer; 20. First reinforcing rib; 21. Lower waterproof membrane. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a front view of a grooved embodiment of the present invention. Figure 3 This is a top view of an embodiment of the present utility model with a groove. Figure 4 The diagram shows the effect of the anti-compression frame according to an embodiment of this utility model. Figure 5 This is a front view schematic diagram of the anti-compression frame according to an embodiment of the present utility model.

[0027] Reference Figures 1 to 5 As shown, this utility model provides a waterproofing device for post-pouring strips in basements, including a groove 1 and a waterproof base layer 2. A pouring strip opening 14 is provided in the groove 1, and a post-pouring strip 11 is poured in the pouring strip opening 14. A support frame 15 is provided at the lower part of the groove 1, and a support column 16 is provided at the lower middle of the support frame 15. The lower end of the support column 16 is fixed to the middle of the inner bottom surface of the waterproof base layer 2. A lower waterproof membrane 21 is provided on the upper surface of the waterproof base layer 2, and multiple sets of first reinforcing ribs 20 penetrate through the waterproof base layer 2.

[0028] In the embodiment, the upper end of the groove 1 is provided with a plurality of groups of side horizontal rods 10 on the left and right sides, and the side horizontal rods 10 adopt a rectangular solid horizontal rod structure, and the length of the side horizontal rods 10 is the same as the length of the lower waterproof coiled material 21, and the side horizontal rods 10 are arranged in parallel with the upper and lower parts of the left and right sides of the lower waterproof coiled material 21.

[0029] As a preferred embodiment, the groove 1 is not only used as a stable installation foundation structure of the post-cast strip, but also the plurality of groups of side horizontal rods 10 fixed on the left and right sides of the upper end of the groove 1 help to strengthen the strength of the double-sided structure of the post-cast strip.

[0030] In the embodiment, a plurality of groups of second reinforcing bars 13 are longitudinally arranged in the post-cast strip 11, and a compression-resistant frame 12 is arranged between the upper ends of each row of five groups of second reinforcing bars 13, and the compression-resistant frame 12 is embedded in the post-cast strip 11; the upper part of the compression-resistant frame 12 is provided with a plurality of groups of left inclined plates 121 and right inclined plates 122, and the opposite ends of the left inclined plates 121 and the right inclined plates 122 are inclined upward and fixed together, and the other ends of the left inclined plates 121 and the right inclined plates 122 are provided with a partition plate 120 on the lower side.

[0031] As a preferred embodiment, the plurality of groups of second reinforcing bars 13 arranged in the post-cast strip 11 help to strengthen the strength of the post-cast strip 11, and the compression-resistant frame 12 arranged on the upper ends of the same row of a plurality of groups of second reinforcing bars 13 also strengthens the crack resistance of the post-cast strip 11, so that the post-cast strip is more durable.

[0032] In the embodiment, the support frame 15 adopts carbon steel material, and the support frame 15 is perpendicular to the support column 16, and the support frame 15 and the support column 16 adopt an integrated structure, and the lower end of the support column 16 is embedded in the middle part of the waterproof bottom layer 2; the left and right sides of the support column 16 are fixed with a reinforcing sheet 17, and the outer surface of the reinforcing sheet 17 is provided with an outer waterproof coiled material 18, and a plurality of groups of first fastening bolts 100 are fixed between the two groups of outer waterproof coiled materials 18 on the left and right sides; a plurality of groups of second fastening bolts 19 are fixed between the reinforcing sheet 17, the outer waterproof coiled material 18 and the upper part of the waterproof bottom layer 2, and the first reinforcing bar 20 and the second reinforcing bar 13 arranged in the waterproof bottom layer 2 all adopt a long strip steel structure with a circular cross section.

[0033] As a preferred embodiment, the support frame 15, the support column 16, the reinforcing sheet 17 and the outer waterproof coiled material 18 are arranged to enhance the support strength and stability of the groove 1, so that it is safer and more reliable, and the outer waterproof coiled material 18 and the lower waterproof coiled material 21 are used for external water seepage prevention, which is safer and more reliable, and the waterproof is more comprehensive and reliable.

[0034] The utility model discloses can effectively solve the waterproof structure in the prior art basically all adopt concrete automatic expansion waterproof, can form a large number of ettringite in the coagulation hardening process, its mechanism is uncontrollable, easily lead to structural damage to cause safety problem, and long -term exposure in the harsh environment, such as high temperature, high humidity or chemical corrosion environment, possibly lead to waterproof layer failure, and not solid safe durable problem, the utility model helps to strengthen the pit bend intensity of post-pouring zone, strengthens the crack resistance of post-pouring zone, and the large -area outer water seepage prevention under post-pouring zone is carried out, is more safe and leakproof, and waterproof is more comprehensive reliable, makes post-pouring zone set more compact solid durable.

[0035] The above examples are used to explain and illustrate the utility model, but not to limit the utility model, and any modification and change made to the utility model within the spirit of the utility model and the scope of the claimed protection right shall be included in the protection scope of the utility model.

Claims

1. A waterproofing device for a basement post-cast strip, characterized in that: The utility model provides a kind of waterproof construction method of post-cast strip, including groove (1) and waterproof bottom layer (2), the pouring channel (14) is set in the groove (1), and post-cast strip (11) is poured in the pouring channel (14), the lower part of the groove (1) is provided with support frame (15), and the lower end of support frame (15) is provided with support column (16), the lower end of support column (16) is fixed in the inner bottom surface of waterproof bottom layer (2) middle part, and the upper surface of waterproof bottom layer (2) is provided with lower waterproof roll (21), and waterproof bottom layer (2) is penetrated by multiple first reinforcing bars (20).

2. The waterproofing device for a basement post-cast strip according to claim 1, characterized in that, The upper end of the groove (1) is provided with multiple side horizontal rods (10) on the left and right sides, and the side horizontal rods (10) adopt rectangular solid horizontal rod structure, and the length of the side horizontal rods (10) is the same as the length of the lower waterproof roll (21), and the side horizontal rods (10) and the lower waterproof roll (21) are arranged in parallel on the left and right sides.

3. The waterproofing device for a basement post-cast strip according to claim 1, characterized in that, Multiple second reinforcing bars (13) are longitudinally penetrated in the post-cast strip (11), and a compression-resistant frame (12) is arranged between the upper ends of every five groups of second reinforcing bars (13), and the compression-resistant frame (12) is embedded in the post-cast strip (11).

4. The waterproofing device for basement post-cast strip according to claim 3, characterized in that, The upper part of the compression-resistant frame (12) is provided with multiple left inclined plates (121) and right inclined plates (122), and the opposite ends of the left inclined plates (121) and the right inclined plates (122) are inclined upward and fixed together, and the other ends of the left inclined plates (121) and the right inclined plates (122) are provided with baffle plates (120) on the lower sides.

5. The basement post-cast strip waterproofing device according to claim 1, characterized in that, The support frame (15) is made of carbon steel, and the support frame (15) is perpendicular to the support column (16), and the support frame (15) and the support column (16) adopt an integrated structure, and the lower end of the support column (16) is embedded in the middle part of the waterproof bottom layer (2).

6. The waterproofing device for a basement post-cast strip according to claim 1, characterized in that, The left and right sides of the support column (16) are fixed with reinforcing sheets (17), and the outer surfaces of the reinforcing sheets (17) are provided with outer waterproof rolls (18), and multiple first fastening bolts (100) are fixed between the two groups of outer waterproof rolls (18) on the left and right sides.

7. The basement post-cast strip waterproofing device according to claim 6, characterized in that, Multiple second fastening bolts (19) are fixed between the reinforcing sheets (17) and the outer waterproof rolls (18) and the upper part of the waterproof bottom layer (2), and the first reinforcing bars (20) and the second reinforcing bars (13) penetrated in the waterproof bottom layer (2) all adopt long strip steel structures with circular cross sections.