A water stop device for post-pouring belt

Abstract

The utility model provides a water stop device for post-pouring zone, include: a plurality of prefabricated board, each prefabricated board is in contact sealed with two building body's lateral surface, and a plurality of prefabricated board is sequentially arranged and sealed connection along the extension direction of post-pouring zone and is integrated, and post-pouring zone is covered. The utility model can effectively prevent leakage and rainfall to cause rust to the reinforcement inside post-pouring zone, keep the inside environment of post-pouring zone neat, need not to maintain post-pouring zone, reduce maintenance cost and subsequent construction risk.

Description

Technical Field

[0001] This utility model belongs to the field of site paving technology, specifically, it relates to a water-stopping device for post-pouring strips. Background Technology

[0002] Post-cast strips refer to temporary strip-shaped joints reserved in structural parts such as beams, slabs, and walls. Concrete is not poured during construction; it is poured after a certain period following the completion of the main structure to form a continuous whole. Existing post-cast strips typically employ masonry protective walls, combined with internal waterproof membranes or external waterproof mortar to construct a temporary waterproofing system. However, due to insufficient bond strength between the brickwork and the waterproof layer, cracks easily form due to backfill settlement or temperature changes, leading to frequent leaks. Furthermore, because post-cast strips require a waiting period before pouring, the steel reinforcement corrodes due to rainfall and leakage during this waiting period, necessitating frequent maintenance, which significantly increases construction costs and subsequent construction risks. Utility Model Content

[0003] One objective of this invention is to provide a water-stopping device for post-cast strips, which effectively prevents leakage and rainfall from causing corrosion to the steel bars inside the post-cast strip, keeps the internal environment of the post-cast strip clean, eliminates the need for maintenance of the post-cast strip, and reduces maintenance costs and subsequent construction risks.

[0004] According to the present invention, a water-stopping device for post-cast strips is provided. The post-cast strip is disposed between two building bodies. The water-stopping device includes: a plurality of precast slabs, each of which is in contact with and sealed to the side surfaces of the two building bodies. The plurality of precast slabs are arranged sequentially along the extension direction of the post-cast strip and sealed together to form a whole, thereby covering the post-cast strip.

[0005] In a preferred embodiment, the water-stopping device for the post-pouring strip further includes: a base plate and connecting ribs, wherein a plurality of precast slabs are arranged sequentially in a vertical direction, and the lowest precast slab is disposed on the upper surface of the base plate, wherein the interior of the precast slab is provided with a mounting hole that penetrates the precast slab in a vertical direction, and the connecting ribs pass through each of the mounting holes and are fixedly connected to the base plate.

[0006] In a preferred embodiment, the base plate has an anchoring groove inside, and an anchoring plate is fixedly installed in the anchoring groove. The connecting bar passes through each of the mounting holes in the vertical direction and is fixedly connected to the anchoring plate.

[0007] In a preferred embodiment, the precast slab has a closed groove extending vertically inside, and the mounting hole is formed in the closed groove.

[0008] In a preferred embodiment, the water-stopping device for the post-cast strip further includes: a tension bar with its first end fixedly connected to the surface of the precast slab facing the post-cast strip, and the second end of the tension bar being connected to the horizontal or vertical reinforcing bars provided inside the post-cast strip by tensioning.

[0009] In a preferred embodiment, adjacent precast slabs are sealed with grout, and the contact points between the precast slabs and the building body are filled with polysulfide sealant.

[0010] In a preferred embodiment, the precast slab is grouted at the contact point with the building body.

[0011] In a preferred embodiment, the side surface of the building and the surface of the precast slab away from the post-cast strip are both covered with waterproof membrane, and the triangular prism space formed between the waterproof membrane, the precast slab and the building is provided with waterproof mortar bevel.

[0012] In a preferred embodiment, the upper surfaces of the two building structures are respectively provided with guide walls, and the guide walls have built-in expansion joints and rubber waterstops.

[0013] In a preferred embodiment, the guide wall is 300mm thick reinforced concrete.

[0014] This utility model has at least the following technical effects:

[0015] According to this utility model, multiple precast slabs are provided, each of which is in contact and sealed with the side surfaces of two building structures. These slabs are sequentially arranged and sealed together along the extension direction of the post-cast strip to cover it. This unified structure of multiple precast slabs effectively prevents leakage and rainwater from corroding the reinforcing steel inside the post-cast strip, keeping the internal environment clean and eliminating the need for maintenance, thus reducing maintenance costs and subsequent construction risks. Furthermore, this utility model uses precast slabs for water sealing, allowing for centralized customization and on-site assembly, accelerating construction speed and reducing construction costs.

[0016] According to this utility model, a base plate and connecting ribs are provided. Multiple precast slabs are arranged sequentially in a vertical direction, with the lowest precast slab placed on the upper surface of the base plate. The interior of each precast slab has mounting holes that penetrate vertically, and the connecting ribs pass through each mounting hole and are fixedly connected to the base plate, thereby connecting the precast slabs into a single unit in the vertical direction, enhancing stability and waterproof performance.

[0017] According to this utility model, a tension bar is provided with its first end fixedly connected to the surface of the precast slab facing the post-cast strip, and the second end of the tension bar is connected to the horizontal or vertical steel bars set inside the post-cast strip through tensioning. This enables the precast slab and the post-cast strip to form an integral load-bearing structure, effectively solving the problem of wall cracking by utilizing the principle of prestressed post-tensioning, significantly enhancing the overall rigidity, improving the impermeability and waterproof quality of the post-cast strip, and reducing the later maintenance cost. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a water-stopping device for post-pouring strips according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of the structure of the base plate of a water-stopping device for a post-pouring strip according to an embodiment of the present invention is shown.

[0020] Figure 3 A schematic diagram of another overall structure of a water-stopping device for post-pouring strips according to one embodiment of the present invention is shown.

[0021] In this application, all the accompanying drawings are schematic drawings, used only to illustrate the principle of the present invention, and are not drawn to scale. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of the utility model, it should be understood that the terms "outer" and "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figure 1 As shown, this utility model provides a water-stopping device 100 for post-cast strips, wherein the post-cast strip 3 is disposed between two building bodies 2 and has horizontal and vertical reinforcing bars inside. The water-stopping device 100 includes: multiple precast slabs 1, each precast slab 1 contacting and sealing the side surfaces of both building bodies 2, and the multiple precast slabs 1 are sequentially arranged and sealed together along the extension direction of the post-cast strip 3 to cover the post-cast strip 3. Optionally, the building body 2 is a basement exterior wall.

[0026] According to this utility model, multiple precast slabs 1 are provided, each precast slab 1 being in contact and sealed with the side surfaces of two building bodies 2. The multiple precast slabs 1 are sequentially arranged and sealed together along the extension direction of the post-cast strip 3 to cover the post-cast strip 3. This allows the post-cast strip 3 to be covered from the outside by the overall structure formed by the multiple precast slabs 1, effectively preventing leakage and rainwater from corroding the steel reinforcement inside the post-cast strip, keeping the internal environment of the post-cast strip clean, eliminating the need for maintenance of the post-cast strip, reducing maintenance costs and subsequent construction risks. Furthermore, this utility model uses precast slabs 1 for water sealing, allowing for centralized customization and on-site assembly, accelerating construction speed and reducing construction costs.

[0027] like Figures 1 to 3 As shown, in one or more embodiments, for the case where the post-cast strip 3 extends vertically, the water-stopping device 100 for the post-cast strip according to this utility model includes: a base plate 11 and connecting ribs 15. Multiple precast slabs 1 are arranged sequentially along the vertical direction, with the lowest precast slab 1 located on the upper surface of the base plate 11. Each precast slab 1 has a vertically penetrating mounting hole 14 inside. Optionally, two mounting holes 14 are spaced apart inside each precast slab 1. The connecting ribs 15 pass through the mounting holes 14 of each precast slab 1 and are fixedly connected to the base plate 11. It should be noted that this embodiment is also applicable to the case where the post-cast strip 3 extends horizontally.

[0028] like Figure 3 As shown, in one or more embodiments, a closed groove 13 extending vertically is provided inside the precast slab 1, and a mounting hole 14 is provided in the closed groove 13. The connecting rib 15 passes through the mounting hole 14 in the closed groove 13 of each precast slab 1 and is fixedly connected to the base plate 11. By setting the closed groove 13, the precast slab 1 can be effectively prevented from being misaligned or loosened during installation, thereby improving the connection strength and stability.

[0029] According to this utility model, a base plate 11 and connecting ribs 15 are provided. Multiple precast slabs 1 are arranged sequentially in a vertical direction, with the lowest precast slab 1 located on the upper surface of the base plate 11. Each precast slab 1 has a vertically penetrating mounting hole 14 inside, and the connecting ribs 15 pass through each mounting hole 14 and are fixedly connected to the base plate 11, thereby connecting the precast slabs 1 into a single unit in the vertical direction, enhancing stability and waterproof performance.

[0030] In one or more embodiments, an anchoring groove 12 is provided inside the base plate 11, and an anchoring plate 16 is fixedly disposed inside the anchoring groove 12. The connecting rib 15 passes through each placement hole 14 in a vertical direction and is fixedly connected to the anchoring plate 16. Optionally, the anchoring plate 16 can be a steel plate.

[0031] In one or more embodiments, the water-stopping device 100 for post-cast strips according to this utility model further includes a tension bar 17, the first end of which is fixedly connected to the surface of the precast slab 1 facing the post-cast strip 3. Specifically, the precast slab 1 has a fixed end on the surface facing the post-cast strip 3, and the first end of the tension bar 17 is fixedly connected to the fixed end. The second end of the tension bar 17 is fixedly connected to the horizontal or vertical reinforcing bars inside the post-cast strip 3 by tensioning. Optionally, the base plate 11 is fixedly connected to the horizontal or vertical reinforcing bars inside the post-cast strip 3 on the side facing the post-cast strip 3 by the tension bar 17.

[0032] According to this utility model, a tension bar 17 is provided with its first end fixedly connected to the surface of the precast slab 1 facing the post-cast strip 3, and the second end of the tension bar 17 is connected to the horizontal or vertical steel bars set inside the post-cast strip 3 through tensioning, so that the precast slab 1 and the post-cast strip 3 (or the building body 2) can form an integral load-bearing structure. The problem of wall cracking is effectively solved by utilizing the principle of prestressed post-tensioning, significantly enhancing the overall rigidity, improving the impermeability and waterproof quality of the post-cast strip, and reducing the later maintenance cost.

[0033] In one or more embodiments, adjacent precast slabs 1 are sealed with grout to achieve further waterproofing. Polysulfide sealant is filled at the contact points between the precast slabs 1 and the building body 2 to ensure a tight fit between the precast slabs 1 and the surface of the building body 2, achieving better water stoppage. Optionally, after the tensioning bars 17 fix the precast slabs 1 and the post-cast strip 3 into a whole, secondary grouting is performed at the contact points between the precast slabs 1 and the building body 2 to further ensure structural integrity.

[0034] In one or more embodiments, a waterproof membrane 18 is laid on the surface of the precast slab 1 away from the post-pouring strip and on the side surface of the building body 2, and a waterproof mortar bevel 19 is provided in the triangular prism space formed between the waterproof membrane 18, the precast slab 1 and the building body 2.

[0035] In one or more embodiments, guide walls (not shown in the figure) are respectively provided on the upper surface of the building body 2 located on both sides of the post-cast strip 3, and the guide walls have built-in expansion joints and rubber waterstops to accommodate structural deformation. The guide walls can be 300mm thick reinforced concrete and can be constructed simultaneously with the foundation slab of the building body 2, thereby forming a waterproof and sealed environment in advance and blocking the path of groundwater seepage.

[0036] This utility model also provides a post-cast strip between two building bodies 2, including the aforementioned water-stopping device 100 for the post-cast strip. Optionally, the building body 2 is the exterior wall of a basement.

[0037] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A water stop device for a post-pouring belt provided between two building bodies, characterized in that, include: Multiple precast slabs are provided, each of which is in contact with and sealed to the side surfaces of two building bodies. The multiple precast slabs are arranged sequentially and sealed together along the extension direction of the post-cast strip, and the post-cast strip is covered.

2. The waterstop device for post-cast strip according to claim 1, characterized in that, Also includes: The base plate and connecting ribs are arranged in sequence along the vertical direction, with the lowest precast plate located on the upper surface of the base plate. Each precast plate has a mounting hole that runs vertically through it, and the connecting ribs pass through each mounting hole and are fixedly connected to the base plate.

3. The waterstop device for post-cast strip according to claim 2, characterized in that, The precast slab has a closed groove extending vertically inside, and the mounting hole is located in the closed groove.

4. The waterstop device for post-cast strip according to claim 2, characterized in that, An anchoring groove is provided inside the base plate, and an anchoring plate is fixedly installed in the anchoring groove. The connecting bar passes through each of the installation holes in the vertical direction and is fixedly connected to the anchoring plate.

5. The waterstop device for post-cast strip according to any one of claims 1 to 4, characterized in that, Also includes: The first end of the tension bar is fixedly connected to the surface of the precast slab facing the post-cast strip, and the second end of the tension bar is connected to the horizontal or vertical steel bars inside the post-cast strip by tensioning.

6. The water-stopping device for post-cast strips according to claim 1 or 2, characterized in that, The adjacent precast slabs are sealed with grout, and the contact points between the precast slabs and the building body are filled with polysulfide sealant.

7. The water-stopping device for post-cast strips according to claim 6, characterized in that, The precast slabs are grouted at the contact points with the building structure.

8. The water-stopping device for post-cast strips according to claim 6, characterized in that, Waterproof membrane is laid on the side surface of the building and the surface of the precast slab away from the post-pouring strip. Waterproof mortar bevels are provided in the triangular prism space formed between the waterproof membrane, the precast slab and the building.

9. The water-stopping device for post-cast strips according to claim 1 or 2, characterized in that, The upper surfaces of the two buildings are equipped with guide walls, and the guide walls have built-in expansion joints and rubber waterstops.

10. The water-stopping device for post-cast strips according to claim 9, characterized in that, The guide wall is made of 300mm thick reinforced concrete.

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