A water-stop structure for post-cast strips in basement floor slabs

Abstract

This utility model discloses a water-stop structure for post-cast strips in basement floor slabs, belonging to the field of water-stop mechanisms for post-cast strips. Multiple transverse reinforcing ribs and multiple bent reinforcing ribs are provided inside the outer protective concrete layer. These transverse and bent reinforcing ribs form a reinforcing rib support network to enhance the protective performance of the outer protective concrete layer. Multiple prefabricated connecting pipes are provided between the outer protective concrete layer and the externally attached waterstop, each with a limiting and stabilizing disc at its lower end. The multiple transverse and bent reinforcing ribs within the outer protective concrete layer form a reinforcing rib support network, improving its stability and strength, enhancing its compressive strength, resisting external loads and deformations, and extending the lifespan of the waterstop structure. The prefabricated connecting pipes are fixedly connected to the externally attached waterstop, enhancing the structural firmness of the waterstop and ensuring that the waterstop remains stable even under water flow impact or external forces during long-term use, preventing it from easily falling off or being damaged.

Description

Technical Field

[0001] This utility model relates to the field of post-cast strip water-stopping mechanism, and in particular to a post-cast strip water-stopping structure for basement floor slabs. Background Technology

[0002] The post-cast strip waterproofing structure of the basement floor slab is a crucial component in ensuring the waterproofing performance of the basement. Its main components and construction process are as follows: The post-cast strip waterproofing structure of the basement floor slab typically includes waterproofing materials such as a water-stop steel plate and rubber waterstop strips. The water-stop steel plate is generally made of galvanized steel, which has excellent corrosion resistance and water-stopping effect. The rubber waterstop strip has good elasticity, wear resistance, and aging resistance, and can effectively adapt to the deformation of the concrete structure.

[0003] During construction, the waterstop steel plates must be bent and welded according to design requirements to ensure the formation of a continuous water-stop barrier. The waterstop steel plates are typically bent at a 45-degree angle on the water-facing side, and two plates are directly connected by welding, with full welding required to enhance their water-stopping performance. Simultaneously, the waterstop steel plates must be spot-welded to the bottom slab reinforcement using short reinforcing bar ends to ensure they do not shift during concrete pouring.

[0004] In practical use, the external waterstop structure of the post-cast strip in basement slabs is easily affected by the construction environment during construction. For example, during the binding of reinforcing bars and pouring of concrete, workers stepping on it, machinery, and the placement of materials can cause compression or friction on the external waterstop, leading to its displacement. Once the upper slab reinforcement is tied, correcting the waterstop becomes extremely difficult, thus creating potential problems for subsequent concrete pouring and waterproofing effectiveness.

[0005] The concrete pouring process can also affect the stability of externally bonded waterstops. Due to the high slump and excellent fluidity of pumped concrete, pouring from one side can easily squeeze the foam board in the middle, causing it to shift, displace, or even break and overturn. As a result, the dividing joints in the middle cannot effectively separate deformation, and may even cause the rubber post-pouring strip to shift, ultimately leading to water leakage from the externally bonded waterstop.

[0006] The difficulty in reaching the vibrator is also a significant reason for the misalignment of externally applied waterstops. When pouring the bottom pre-installed waterstop, the vibrator has difficulty reaching the bottom due to the influence of the basement slab reinforcement. This results in incomplete compaction of the concrete in the waterstop area, affecting its waterproofing effect. Over time, this incomplete compaction may worsen, leading to misalignment or detachment of the waterstop. Utility Model Content

[0007] The main purpose of this utility model is to provide a water-stopping structure for the post-cast strip of the basement floor slab, which can effectively solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A water-stopping structure for a post-cast strip in a basement floor slab includes a subfloor concrete, a fine aggregate concrete protective layer, a rolled waterproofing layer, an outer protective concrete layer, and an externally attached waterstop. The subfloor concrete, fine aggregate concrete protective layer, rolled waterproofing layer, and outer protective concrete layer are arranged sequentially from bottom to top, and the externally attached waterstop is located in a groove in the outer protective concrete layer. The outer protective concrete layer is provided with multiple transverse reinforcing ribs and multiple bent reinforcing ribs. The multiple transverse reinforcing ribs and bent reinforcing ribs form a reinforcing rib support network to improve the protective performance of the outer protective concrete layer. Multiple prefabricated connecting pipes are provided between the outer protective concrete layer and the external waterstop. Each prefabricated connecting pipe has a limiting and stabilizing disc at its lower end, and the interior of the prefabricated connecting pipe forms a docking hole.

[0009] In an optional embodiment of this application, the prefabricated connecting pipe and the limiting and stabilizing disk are designed as an integrated unit, and the cross-sections of the limiting and stabilizing disk and the prefabricated connecting pipe are designed in an inverted "T" shape, and the edges of the limiting and stabilizing disk and the prefabricated connecting pipe are designed in an arc shape. In an optional embodiment of this application, the prefabricated connecting pipe is inserted into the lower end opening of the external waterstop, and the prefabricated connecting pipe and the external waterstop are fixed by fasteners. The side wall of the prefabricated connecting pipe is provided with multiple round holes, and the edges of the round holes are designed in an arc shape. In an optional embodiment of this application, multiple prefabricated connecting pipes are equidistantly distributed on an externally attached waterstop, a transverse reinforcing rib is placed on the outer wall of multiple prefabricated connecting pipes, and the prefabricated connecting pipes and the transverse reinforcing rib are bound together by wire. In an optional embodiment of this application, the side of the bent reinforcing bar is designed in a "U" shape, and multiple bent reinforcing bars are equidistantly distributed in the outer protective concrete layer. The bent reinforcing bars and the transverse reinforcing bars are designed to be perpendicular to each other, and the intersection is connected by binding wire. The bent reinforcing bars and the prefabricated connecting pipe are connected by binding wire. In an optional embodiment of this application, a stabilizing drill bit is inserted into the mating hole, and the stabilizing drill bit is inserted into the internal opening of the external waterstop, and the two are fixedly connected by a prefabricated connecting pipe, the stabilizing drill bit and the external waterstop.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By incorporating multiple transverse and bent reinforcing ribs within the outer protective concrete layer, a reinforcing support network is formed, significantly enhancing the stability and strength of the outer protective concrete layer. This design not only strengthens the compressive strength of the concrete layer but also effectively resists external loads and deformations, extending the service life of the waterproofing structure.

[0011] The design of the prefabricated connecting pipe and its limiting and stabilizing plate ensures the stability and accurate positioning of the connecting pipe. The mating holes formed inside the prefabricated connecting pipe facilitate subsequent connection operations, while the limiting and stabilizing plate increases the stability of the structure. At the same time, the multiple round holes on the side wall of the prefabricated connecting pipe facilitate water flow and prevent clogging, effectively improving the waterproof performance of the water-stop structure.

[0012] The fixed connection between the prefabricated connecting pipe and the externally attached waterstop further enhances the robustness of the waterstop structure. During long-term use, even when subjected to water flow impact or external forces, the waterstop remains stable and is not easily detached or damaged. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 The diagram shows the reinforcing ribs, external waterstop strip, and prefabricated connecting pipe of this utility model. Figure 4 Test diagrams for the reinforcing ribs, external waterstop strips, and prefabricated connecting pipes of this utility model; Figure 5 for Figure 3 Enlarged diagram of point A in the middle.

[0014] In the diagram: 1. Subbase concrete; 2. Fine aggregate concrete protective layer; 3. Waterproof membrane layer; 4. Outer protective concrete layer; 5. External waterstop; 6. Transverse reinforcing rib; 7. Bent reinforcing rib; 8. Limiting and stabilizing disc; 9. Prefabricated connecting pipe; 10. Butt joint. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 - Figure 5As shown, a post-cast strip waterproofing structure for a basement floor slab comprises the following parts: first, a foundation concrete layer 1, serving as the base layer; second, a fine aggregate concrete protective layer 2, used to protect the foundation concrete layer 1; third, a rolled waterproofing layer 3, providing waterproofing; fourth, an outer protective concrete layer 4, providing additional protection; and finally, an externally applied waterstop 5, located in the groove of the outer protective concrete layer 4. These parts are arranged sequentially from bottom to top, forming a complete waterproofing and protection system.

[0017] Inside the outer protective concrete layer 4, multiple transverse reinforcing ribs 6 are provided, which enhance the lateral stability of the concrete layer. Simultaneously, multiple bent reinforcing ribs 7 are also provided inside the outer protective concrete layer 4, which further improve the overall strength of the concrete layer. The multiple transverse reinforcing ribs 6 and the bent reinforcing ribs 7 together form a reinforcing support network, which effectively improves the protective performance of the outer protective concrete layer 4.

[0018] Between the outer protective concrete layer 4 and the externally applied waterstop 5, multiple prefabricated connecting pipes 9 are installed. Each prefabricated connecting pipe 9 has a limiting and stabilizing disc 8 at its lower end to ensure the stability of the connecting pipe. A mating hole 10 is formed inside the prefabricated connecting pipe 9 to facilitate subsequent connection operations.

[0019] The prefabricated connecting pipe 9 and the limiting and stabilizing plate 8 are designed as a single unit. The cross-section of the limiting and stabilizing plate 8 and the prefabricated connecting pipe 9 is an inverted "T" shape, which increases the stability of the structure. The edges of the limiting and stabilizing plate 8 and the prefabricated connecting pipe 9 are arc-shaped, which reduces stress concentration and improves the overall durability of the structure.

[0020] The prefabricated connecting pipe 9 is inserted into the lower opening of the external waterstop 5, and the prefabricated connecting pipe 9 and the external waterstop 5 are fixedly connected by fasteners. The side wall of the prefabricated connecting pipe 9 has multiple round holes, and the edges of these round holes are also designed with arc shape to facilitate water flow and prevent clogging.

[0021] Multiple prefabricated connecting pipes 9 are equidistantly distributed on the externally attached waterstop 5, ensuring the uniformity and stability of the connection. A transverse reinforcing rib 6 is placed on the outer wall of the multiple prefabricated connecting pipes 9, and the prefabricated connecting pipes 9 and the transverse reinforcing rib 6 are bound together by wire, further enhancing the overall structural strength.

[0022] The bent reinforcing ribs 7 have a U-shaped design on their sides, which increases the contact area with the concrete and improves the bonding effect. Multiple bent reinforcing ribs 7 are evenly distributed in the outer protective concrete layer 4. The bent reinforcing ribs 7 are designed perpendicular to the transverse reinforcing ribs 6, and their intersections are connected by wire binding, ensuring the integrity and stability of the structure. The bent reinforcing ribs 7 are also connected to the precast connecting pipes 9 by wire binding, further enhancing the reliability of the connection.

[0023] A stabilizing drill bit is inserted into the mating hole 10. The stabilizing drill bit is inserted into the internal opening of the external waterstop 5. The fixed connection of the prefabricated connecting pipe 9, the stabilizing drill bit and the external waterstop 5 ensures the firmness and waterproof effect of the entire waterstop structure.

[0024] First, pour the foundation concrete 1 as the base layer, ensuring its flatness and strength meet the requirements. After the foundation concrete 1 has fully cured, lay a fine aggregate concrete protective layer 2 on top to protect it from external damage. Next, lay a rolled waterproofing layer 3 on top of the fine aggregate concrete protective layer 2 to ensure the waterproof performance of the entire structure. Then, pour the outer protective concrete layer 4, and simultaneously install multiple transverse reinforcing ribs 6 and bent reinforcing ribs 7 inside this layer to enhance the stability and strength of the concrete layer. During the pouring process, ensure that the reinforcing ribs are tightly bonded to the concrete. Pre-install a prefabricated connecting pipe 9 and its limiting and stabilizing plate 8 between the outer protective concrete layer 4 and the external waterstop 5 to ensure the stability and accurate positioning of the connecting pipe. Finally, install the external waterstop 5 in the groove of the outer protective concrete layer 4 and fix it to the prefabricated connecting pipe 9 with fasteners.

[0025] When the post-cast strip of the basement floor slab requires waterproofing, this waterproofing structure comes into play. Water first encounters the externally attached waterstop 5, whose waterproofing performance effectively prevents water penetration. If water attempts to bypass the waterstop, the prefabricated connecting pipe 9 and its circular openings guide the water flow, while the curved edges prevent blockage. Furthermore, a stabilizing drill bit is inserted into the waterstop through the prefabricated connecting pipe 9, further enhancing the structure's robustness and waterproofing effect. During long-term use, the reinforcing mesh formed by the transverse reinforcing ribs 6 and the bent reinforcing ribs 7 effectively resists external loads and deformations, ensuring the stability and durability of the waterproofing structure. If repair or replacement of the waterstop is required, the prefabricated connecting pipe 9 and the externally attached waterstop 5 can be easily removed by disassembling the fasteners for necessary maintenance.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0027] 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 post-cast strip water-stop structure for a basement floor slab, comprising a foundation concrete layer (1), a fine aggregate concrete protective layer (2), a rolled waterproofing layer (3), an outer protective concrete layer (4), and an externally attached waterstop (5), wherein the foundation concrete layer (1), the fine aggregate concrete protective layer (2), the rolled waterproofing layer (3), and the outer protective concrete layer (4) are arranged sequentially from bottom to top, and the externally attached waterstop (5) is located in the groove of the outer protective concrete layer (4), characterized in that: The outer protective concrete layer (4) is provided with multiple transverse reinforcing bars (6) and multiple bent reinforcing bars (7). The multiple transverse reinforcing bars (6) and the bent reinforcing bars (7) form a reinforcing bar support network to improve the protective performance of the outer protective concrete layer (4). Multiple prefabricated connecting pipes (9) are provided between the outer protective concrete layer (4) and the external waterstop (5). Each prefabricated connecting pipe (9) has a limiting and stabilizing plate (8) at its lower end, and a docking hole (10) is formed inside the prefabricated connecting pipe (9).

2. The water-stopping structure for post-cast strips in basement floor slabs according to claim 1, characterized in that: The prefabricated connecting pipe (9) and the limiting and stabilizing disk (8) are designed as a single unit, and the cross-sections of the limiting and stabilizing disk (8) and the prefabricated connecting pipe (9) are designed in an inverted "T" shape, and the edges of the limiting and stabilizing disk (8) and the prefabricated connecting pipe (9) are designed in an arc shape.

3. The water-stopping structure for post-cast strips in basement floor slabs according to claim 2, characterized in that: The prefabricated connecting pipe (9) is inserted into the lower end opening of the external waterstop (5), and the prefabricated connecting pipe (9) and the external waterstop (5) are fixed by fasteners. The side wall of the prefabricated connecting pipe (9) has multiple round holes, and the edges of the round holes are arc-shaped.

4. The water-stopping structure for post-cast strips in basement floor slabs according to claim 3, characterized in that: Multiple prefabricated connecting pipes (9) are equidistantly distributed on the external waterstop (5), and a transverse reinforcing rib (6) is placed on the outer wall of multiple prefabricated connecting pipes (9), and the prefabricated connecting pipes (9) and transverse reinforcing rib (6) are bound together by iron wire.

5. The water-stopping structure for post-cast strips in basement floor slabs according to claim 4, characterized in that: The side of the bent reinforcing bar (7) is designed in the shape of a "U". Multiple bent reinforcing bars (7) are distributed at equal intervals in the outer protective concrete layer (4). The bent reinforcing bars (7) and the transverse reinforcing bars (6) are designed perpendicular to each other, and the intersection is connected by iron wire. The bent reinforcing bars (7) and the prefabricated connecting pipe (9) are connected by iron wire.

6. The water-stopping structure for post-cast strips in basement floor slabs according to claim 5, characterized in that: A stabilizing drill bit is inserted into the docking hole (10), and the stabilizing drill bit is inserted into the internal opening of the external waterstop (5), and is fixedly connected by the prefabricated connecting pipe (9), the stabilizing drill bit and the external waterstop (5).

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