Fabricated precast foundation

Abstract

The utility model discloses an assembly type prefabricated foundation relates to the technical field of assembly type building, wherein, assembly type prefabricated foundation includes foundation body and frame body, and foundation body is equipped with the connecting box, and the frame body is equipped with the connecting groove corresponding connecting box. The utility model discloses a technical scheme through setting up connecting box at foundation body, and setting up connecting groove at frame body, and connecting groove and corresponding connecting box set up, so as to position connecting box in connecting groove, and it is relatively easy to align position, so that prefabricated foundation body and prefabricated column installation are more time -saving. And the joint between foundation body and frame body is filled with slurry, so that foundation body and frame body are connected into the assembly type prefabricated foundation of an organic whole.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a prefabricated foundation. Background Technology

[0002] With the development and improvement of prefabricated technology, more and more buildings are adopting prefabricated structural systems, which greatly reduces manual labor and on-site wet work.

[0003] Existing prefabricated foundations consist of a prefabricated foundation body and prefabricated columns. The prefabricated foundation body is equipped with positioning embedded parts, and the prefabricated columns are equipped with reserved holes. By aligning and inserting the positioning embedded parts with the reserved holes, concrete is poured into the cavity within the prefabricated foundation body, thus connecting the prefabricated foundation body and the prefabricated columns as a single unit. However, the existing prefabricated foundations require a considerable amount of time to align the positioning embedded parts with the reserved holes, making the installation of the prefabricated foundation body and prefabricated columns time-consuming. Utility Model Content

[0004] The main purpose of this invention is to propose a prefabricated assembly foundation, which aims to solve the problem of alignment difficulties in existing prefabricated assembly foundations.

[0005] To achieve the above objectives, the prefabricated foundation proposed in this utility model includes:

[0006] The basic body, wherein the basic body is provided with a connection box; and

[0007] The frame body has a connecting groove corresponding to the connecting box; the connecting box is positioned in the connecting groove, and the joint between the base body and the frame body is filled with grout.

[0008] In one embodiment, a screw is pre-embedded inside the base body, the connecting box includes a box body and a fixing nut disposed inside the box body, the screw extends into the fixing nut and is locked with the fixing nut, and the box body is accommodated in the connecting groove.

[0009] In one embodiment, the box body has a window on the side opposite to the frame body, and the interior of the box body forms a receiving space that communicates with the window.

[0010] In one embodiment, a base plate is pre-embedded on the side of the base body facing the connecting box, and the connecting box is disposed on the base plate.

[0011] In one embodiment, the frame body is pre-embedded with longitudinal ribs, and the box body is provided with through holes corresponding to the longitudinal ribs, through which the longitudinal ribs pass to connect with the box body.

[0012] In one embodiment, the outer surface of the longitudinal rib has a threaded crescent rib.

[0013] In one embodiment, the frame includes precast columns and at least one precast beam. The precast columns extend along the height direction of the foundation body and are pre-embedded with longitudinal reinforcement bars. At least one precast beam extends along the length or width direction of the foundation body. At least one precast beam is connected to one side of the precast column, and the bottom of the precast beam and the bottom of the precast column are both connected to the foundation body.

[0014] In one embodiment, a lightweight filler is pre-embedded inside the base body, and the lightweight filler is arranged to avoid the screw.

[0015] In one embodiment, the foundation body includes a pad layer and a prefabricated foundation base, wherein the prefabricated foundation base is disposed on the pad layer.

[0016] In one embodiment, the connecting box is square in shape, and the connecting groove is a square groove.

[0017] The technical solution of this utility model adopts a method of setting a connecting box in the foundation body and a connecting groove in the frame body, with the connecting groove and the corresponding connecting box set, so that the connecting box is positioned in the connecting groove, making it easier to align the position, thus saving time in the installation of the prefabricated foundation body and prefabricated columns. In addition, the joint between the foundation body and the frame body is filled with grout, so that the foundation body and the frame body are connected into a whole prefabricated foundation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the prefabricated assembly foundation provided by this utility model;

[0020] Figure 2 A three-dimensional structural schematic diagram of an embodiment of the prefabricated foundation body and connecting box provided by this utility model;

[0021] Figure 3 A cross-sectional view of an embodiment of the prefabricated assembly foundation provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Prefabricated foundation; 10. Foundation body; 11. Screw rod; 12. Base plate; 13. Longitudinal reinforcement; 14. Lightweight filler; 15. Prefabricated foundation base; 16. Subbase; 17. Reinforcing steel; 20. Frame; 21. Connecting groove; 22. Prefabricated column; 23. Prefabricated beam; 30. Connecting box; 31. Box body; 32. Fixing nut; 33. Window; 34. Accommodation space.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] With the development and improvement of prefabricated technology, more and more buildings are adopting prefabricated structural systems, which greatly reduces manual labor and on-site wet work.

[0029] The existing prefabricated foundation 100 includes a prefabricated foundation body 10 and prefabricated columns 22. The prefabricated foundation body 10 is equipped with positioning embedded parts, and the prefabricated columns 22 are equipped with reserved holes. By aligning and inserting the positioning embedded parts with the reserved holes, concrete is poured into the cavity inside the prefabricated foundation body 10, thus connecting the prefabricated foundation body 10 and the prefabricated columns 22 into one unit. However, the existing prefabricated foundation 100 requires a long time to align the positioning embedded parts with the reserved holes, making the installation of the prefabricated foundation body 10 and the prefabricated columns 22 time-consuming.

[0030] This utility model proposes a prefabricated assembly foundation 100. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 In one embodiment of this utility model, the prefabricated assembly foundation 100 includes:

[0031] Basic body 10, basic body 10 is provided with a connecting box 30; and

[0032] The frame body 20 has a connecting groove 21 corresponding to the connecting box 30; the connecting box 30 is positioned in the connecting groove 21, and the joint between the base body 10 and the frame body 20 is filled with grout.

[0033] Among them, the frame 20 is prefabricated, which eliminates the drawbacks of large-scale on-site operations, such as dust pollution, material waste, and large sewage discharge.

[0034] The technical solution of this utility model adopts a method of setting a connecting box 30 in the foundation body 10 and a connecting groove 21 in the frame body 20. The connecting groove 21 is set with a corresponding connecting box 30 so that the connecting box 30 is positioned in the connecting groove 21, making it easier to align the position and making the installation of the prefabricated foundation body 10 and the prefabricated column 22 more time-saving. In addition, the joint between the foundation body 10 and the frame body 20 is filled with grout, so that the foundation body 10 and the frame body 20 are connected into a prefabricated precast foundation 100.

[0035] In one embodiment, the connecting box 30 is square in shape, and the connecting groove 21 is a square groove.

[0036] In one embodiment, the connecting box 30 can be made of Q235 low-carbon steel. The contact surfaces between the connecting box 30 and the frame 20 can be ribbed to increase the roughness of the connection.

[0037] Please see Figure 1 and Figure 3In order to lock the connecting box 30 onto the base body 10, a screw 11 is pre-embedded inside the base body 10. The connecting box 30 includes a box body 31 and a fixing nut 32 disposed in the box body 31. The screw 11 extends into the fixing nut 32 and is locked with the fixing nut 32. The box body 31 is accommodated in the connecting groove 21.

[0038] A fixing nut 32 is screwed into the screw 11, so that the connecting box 30 and the screw 11 are locked together. A washer is also fitted on the screw 11, and the fixing nut 32 cooperates with the washer to lock the connecting box 30 onto the base body 10.

[0039] To facilitate manual operation by the operator in the receiving space 34, the box body 31 has a window 33 on the side opposite to the precast column 22, and the receiving space 34 is formed inside the box body 31, which is connected to the window 33.

[0040] Specifically, the connecting box 30 is a three-sided closed body, with the other side open so that the operator can perform a hand-tightening operation in the receiving space 34, and then screw the fixing nut 32 into the screw 11.

[0041] In one embodiment, a base plate 12 is embedded on the side of the base body 10 facing the connecting box 30, and the connecting box 30 is disposed on the base plate 12.

[0042] An embedded base plate 12 is set on the upper part of the foundation. The base plate 12 has an M22 embedded column base bolt 11. The end of the bolt 11 is an anchor plate with a through-hole plug weld to ensure that the effective anchorage length is not less than 35d.

[0043] The frame 20 has embedded longitudinal ribs 13, and the box 31 has through holes corresponding to the longitudinal ribs 13, through which the longitudinal ribs 13 pass to connect with the box 31. In one embodiment, a longitudinal rib 13 with a diameter of 20mm is embedded at the bottom of the precast column 22 of the frame 20 to achieve effective force transmission from the precast column 22 to the foundation body 10, thereby resisting horizontal shear stress.

[0044] The top of the connecting box 30 has a circular perforation, the diameter of which is slightly larger than the diameter of the longitudinal rib 13, so that the longitudinal rib 13 can pass through the perforation and connect to the box body 31.

[0045] In one embodiment, the outer surface of the longitudinal reinforcement 13 has threaded crescent ribs to enhance the anchoring effect of the precast column 22 and the foundation body 10.

[0046] In one embodiment, the frame body 20 includes precast columns 22 and at least one precast beam 23. The precast columns 22 extend along the height direction of the foundation body 10 and are pre-embedded with longitudinal reinforcement 13. The at least one precast beam 23 extends along the length or width direction of the foundation body 10. The at least one precast beam 23 is connected to one side of the precast column 22, and the bottom of the precast beam 23 and the bottom of the precast column 22 are both connected to the foundation body 10.

[0047] The top of the foundation body 10 is flat. The connection between the foundation body 10 and the precast columns 22 and precast beams 23 has a rough surface. After the precast columns 22, precast beams 23 and connecting boxes 30 are installed, the connection between the foundation body 10 and the precast columns 22 and precast beams 23 is sealed and fixed by the grouting method.

[0048] Furthermore, a lightweight filler 14 is pre-embedded inside the foundation body 10, with the lightweight filler 14 positioned to avoid the bolts 11. The lightweight filler 14 is pre-embedded in the middle of the foundation body 10 and fixed to the stirrups by spot welding. After the foundation body 10 is poured, the lightweight filler 14 can form a hollow effect similar to a central cavity within the foundation body 10, effectively reducing the self-weight of the prefabricated foundation body 10 without compromising structural safety.

[0049] In one embodiment, the base body 10 includes a pad 16 and a prefabricated base 15, the prefabricated base 15 being disposed on the pad 16.

[0050] The specific steps of the prefabricated foundation 100 are as follows:

[0051] (1) First, the steel bars 17 of the foundation body 10 are tied and placed in the steel mold. The steel mold contains a lightweight filler 14, a base plate 12 and a screw rod 11, and a lifting nail. Then, the precast foundation concrete is poured, cured and demolded.

[0052] (2) After the concrete strength of the foundation body 10 reaches the lifting strength, the top of the foundation body 10 is roughened, and then the prefabricated foundation body 10 is vertically lifted to the designated area of ​​the site by lifting nails.

[0053] (3) Level the ground initially, and then set a self-leveling subfloor 16; after the subfloor 16 reaches its strength, hoist the foundation body 10 into position, and then remove the hoisting equipment.

[0054] (4) Hoist the frame 20 into place, set the center of the connecting box 30 and the screw 11 to correspond to each other, and lock the precast column 22 and the foundation body 10 through the window 33 opened by the connecting box 30 and the fixing nut 32 and the washer.

[0055] (5) The joints between the foundation body 10 and the precast columns 22 and precast beams 23 are all filled and compacted by the self-compacting grouting method.

[0056] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A prefabricated assembly foundation, characterized in that, include: The basic body is equipped with a connection box; and A frame body, wherein the frame body is provided with a connection slot corresponding to the connection box; The connecting box is positioned in the connecting groove, and the joint between the base body and the frame body is filled with grout.

2. The prefabricated foundation as described in claim 1, characterized in that, The base body has a pre-embedded screw, the connecting box includes a box body and a fixing nut disposed in the box body, the screw extends into the fixing nut and is locked with the fixing nut, and the box body is accommodated in the connecting groove.

3. The prefabricated foundation as described in claim 2, characterized in that, The box has a window on the side opposite to the frame, and the interior of the box forms a receiving space that communicates with the window.

4. The prefabricated foundation as described in claim 2, characterized in that, A base plate is embedded on the side of the base body facing the connecting box, and the connecting box is disposed on the base plate.

5. The prefabricated foundation as described in any one of claims 2 to 4, characterized in that, The frame is pre-embedded with longitudinal ribs, and the box body has through holes corresponding to the longitudinal ribs. The longitudinal ribs pass through the through holes to connect with the box body.

6. The prefabricated foundation as described in claim 5, characterized in that, The outer surface of the longitudinal rib has a threaded crescent rib.

7. The prefabricated foundation as described in claim 5, characterized in that, The frame includes precast columns and at least one precast beam. The precast columns extend along the height direction of the foundation body and are pre-embedded with longitudinal reinforcement bars. At least one precast beam extends along the length or width direction of the foundation body. At least one precast beam is connected to one side of the precast column, and the bottom of the precast beam and the bottom of the precast column are both connected to the foundation body.

8. The prefabricated foundation as described in any one of claims 2 to 4, characterized in that, The base body has a lightweight filler embedded inside, and the lightweight filler is arranged to avoid the screw.

9. The prefabricated foundation as described in any one of claims 2 to 4, characterized in that, The foundation body includes a pad layer and a prefabricated foundation base, wherein the prefabricated foundation base is disposed on the pad layer.

10. The prefabricated foundation as described in any one of claims 2 to 4, characterized in that, The connecting box is square in shape, and the connecting groove is a square groove.

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