Concave type anchoring base plate for anti-floating reinforcement of building bottom plate

Abstract

The utility model relates to a concave type anchoring base plate for anti-floating reinforcement of a building bottom plate, which comprises an anchoring base plate concave into the building bottom plate, a groove and a first through hole are arranged on the anchoring base plate, and an anti-punching anchor bar is arranged in the first through hole in a penetrating manner. The utility model aims to provide the concave anchoring base plate for anti-floating reinforcement of the building bottom plate so as to solve the problem that in the prior art, an anchorage device and a base plate of a pre-stressed anchor rod often protrude out of the building bottom plate, and a concrete laminated layer or a thickened building surface layer needs to be additionally arranged on the building bottom plate to guarantee surface flatness.

Description

Technical Field

[0001] This utility model relates to the field of anti-buoyancy reinforcement technology for building base slabs, specifically to a recessed anchoring pad for anti-buoyancy reinforcement of building base slabs. Background Technology

[0002] In recent years, due to factors such as excessively concentrated rainfall or excessively low anti-buoyancy water levels in the design, the anti-buoyancy problem of existing structures has become increasingly prominent. Common methods for reinforcing existing structures against buoyancy include weight-based anti-buoyancy methods, adding anti-buoyancy anchors or anti-uplift piles, and drainage / pressure reduction methods. Among these, the anti-buoyancy effect of weight-based anti-buoyancy methods is limited. While the initial investment in drainage systems is low, the ongoing operating costs are high. Anti-buoyancy anchors, due to their short construction period and low cost, are a commonly used method for anti-buoyancy reinforcement.

[0003] Commonly used anti-buoyancy anchors include bonded anchors and prestressed anchors. Bonded anchors are only suitable for soil and rock layers and situations where vertical displacement control is not strictly required, while prestressed anchors have a wider range of applicable conditions. However, the anchorage and pad of prestressed anchors often protrude from the building's foundation slab, requiring the addition of a concrete composite layer or thickening of the building's surface layer to ensure a smooth surface. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a recessed anchoring pad for anti-buoyancy reinforcement of building base slabs, so as to solve the problem that in the prior art, the anchors and pads of prestressed anchor rods often protrude from the building base slab, requiring the addition of a concrete composite layer or thickening of the building surface layer on the building base slab to ensure a smooth surface.

[0005] This utility model is achieved through the following technical solution:

[0006] A recessed anchoring pad for anti-buoyancy reinforcement of building base slab includes an anchoring pad recessed into the building base slab, wherein the anchoring pad has a groove and a first through hole, and an anti-punching anchor bar is inserted into the first through hole.

[0007] Furthermore, the groove is circular.

[0008] Furthermore, a grouting port is provided in the groove.

[0009] Furthermore, the number of punching shear anchor bars is multiple.

[0010] Furthermore, the multiple anti-punch-shear anchor bars are evenly distributed in a ring around the central axis of the groove.

[0011] Furthermore, multiple anti-punching anchor bars are welded to the anchor plate with equal strength.

[0012] Furthermore, the bottom ends of the multiple anti-punching anchor bars are close to the bottom surface of the building's base slab, and sufficient protective layer thickness is maintained.

[0013] The beneficial effects of this utility model are as follows:

[0014] This recessed anchoring plate for anti-buoyancy reinforcement of building foundation slabs creates a mounting groove within the building foundation slab, providing space for the installation of anchor bolts, prestressed tendons, and anchorages. Compared to existing technologies, the anchorages and the plate do not protrude from the foundation slab surface, ensuring the slab surface remains flat after anchor bolt installation. Furthermore, the added punching shear anchor bars effectively improve the punching shear bearing capacity of the foundation slab, solving the problem of reduced punching shear thickness caused by the recessed plate.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram illustrating an application example of this utility model.

[0019] In the picture:

[0020] 1. Anchor plate; 2. Punching shear anchor bar; 3. First through hole; 4. Filling layer; 5. Building base slab; 6. Horizontal reinforcement of base slab; 7. Anchor; 8. Anchor rod prestressing tendon; 9. Anchor rod grout. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0026] Please see Figure 1-3 This utility model provides a technical solution: a recessed anchoring pad for anti-buoyancy reinforcement of building base slabs, comprising an anchoring pad 1 recessed into the building base slab 5. The anchoring pad 1 has a groove and multiple first through holes 3. The groove is circular, and a grouting port is provided within the groove. Anti-punching anchor bars 2 are inserted into each of the multiple first through holes 3. The multiple anti-punching anchor bars 2 are evenly distributed in a ring around the central axis of the groove, and are welded to the anchoring pad 1 with equal strength. The bottom ends of the multiple anti-punching anchor bars 2 are close to the lower surface of the building base slab 5, retaining sufficient protective layer thickness. The anti-punching anchor bars 2 can be displacement expansion bolts.

[0027] Working principle and usage:

[0028] Step 1: According to the size of the anchor plate 1, chisel out the plate installation groove on the building base plate 5, and drill the rebar holes and anchor bolt holes that are compatible with the punching shear anchor bars 2 on the building base plate 5. The anchor bolt holes extend downward to the soil layer.

[0029] Step 2: Fill the anchoring holes with anchoring adhesive.

[0030] Step 3: Slowly place the anchor plate 1 into the plate installation groove, insert the anchor 7 into the anchor hole, and slowly insert the punching shear anchor bar 2 into the anchoring adhesive. After placing the anchor plate 1, it should be left to stand still and should not be disturbed. After the anchoring adhesive has cured, the anchor bar prestressing tendon 8 is tensioned and locked.

[0031] Step 4: Inject anchor grout 9 into the anchor hole through the grouting port to fix one end of the anchor 7 to the soil and rock layer.

[0032] Step 5: Lay the filling layer 4 on the anchor plate 1.

[0033] The grooves in the pad and the punching shear anchor bars 2 should be avoided from the horizontal reinforcement 6 of the bottom plate.

[0034] After the construction and maintenance of anchor 7 are completed, the debris in the groove should be cleaned, and anti-corrosion coating should be applied to the surface of anchor plate 1, anchor 7 and the end of anchor rod prestressing tendon 8.

[0035] After the anchor bolt construction and maintenance are completed, mortar can be injected into the groove or a cover plate can be installed to keep the surface of the anchor plate 1 flat.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A recessed anchor pad for use in anti-flooding reinforcement of a building floor, characterized by: The anchor base plate (1) comprises a recessed building bottom plate (5), a groove and a first through hole (3) are formed on the anchor base plate (1), and an anti-cut anchor bar (2) is arranged in the first through hole (3).

2. The recessed anchor bed plate for anti-floating reinforcement of building floor slabs as claimed in claim 1, wherein: The groove is circular.

3. The recessed anchor bed plate for anti-floating reinforcement of building floor slabs as claimed in claim 1, wherein: A grouting port is arranged in the groove.

4. The recessed anchor bed plate for anti-floating reinforcement of building floor slabs as claimed in claim 1, wherein: The number of the anti-cut anchor bars (2) is multiple.

5. The recessed anchor bed plate for anti-floating reinforcement of building floor slabs as claimed in claim 4, wherein: The multiple anti-cut anchor bars (2) are uniformly distributed in a ring shape around the central axis of the groove.

6. The recessed anchor bed plate for anti-floating reinforcement of building floor slabs as claimed in claim 4, wherein: The multiple anti-cut anchor bars (2) are all welded on the anchor base plate (1).

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