Brick tire mold structure of pile cap

By using a precast cement board and steel tie plate connected brick formwork structure in the pile cap foundation pit, the problem of traditional brick masonry methods in the construction of large-span and high-height pile caps has been solved, and the construction efficiency and stability have been improved.

CN224048207UActive Publication Date: 2026-03-27CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional solid concrete brick masonry methods are not suitable for the construction of large-span, high-height pile caps, which increases the construction difficulty and cannot meet the needs of modern buildings.

Method used

The pile cap brick formwork structure adopts a combination of precast cement slabs and steel tie plates. By laying a concrete cushion layer at the bottom of the foundation pit, connecting the precast cement slabs and steel tie plates, and fixing them with self-tapping screws, a stable brick formwork structure is formed.

Benefits of technology

It improves construction efficiency and the overall stability of the brick formwork, and is suitable for the construction of large-span and high-height pile caps, thus shortening the construction cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a pile cap brick tire film structure which is characterized in that a second concrete cushion layer is laid at the bottom of a foundation pit, prefabricated cement bricks are piled at the edge of the second concrete cushion layer, prefabricated cement plates are piled at the upper ends of the prefabricated cement bricks, and steel pulling pieces are arranged between the adjacent prefabricated cement plates in the horizontal wind direction. And self-tapping screws are arranged at the two ends of the steel pulling piece in a penetrating mode and matched with the prefabricated cement board. The prefabricated cement boards are used for replacing original prefabricated cement bricks, the construction speed and the overall stability of the brick blank film can be improved, and in addition, the connection strength between the prefabricated cement boards is ensured through the fixing mode of the steel pulling pieces and the self-tapping screws.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and particularly relates to a pile cap brick membrane structure. BACKGROUND

[0002] With the development of economy and technology, buildings tend to be higher and larger, and with the increase of the height and span of the buildings, the requirements for the structure foundation are higher and higher, and pile raft foundations are more widely used, and the size and depth of the pile caps are continuously increased, so the original construction method of the brick masonry of the solid concrete is not suitable for the construction of the large-span and large-height brick membrane, and the construction difficulty of the large-span and large-height brick membrane hinders the development of the building industry. SUMMARY

[0003] To solve the above problems, the present application discloses a pile cap brick membrane structure, a second concrete cushion layer is laid at the bottom of a foundation pit, prefabricated cement bricks are arranged at the edges of the second concrete cushion layer, prefabricated cement boards are arranged at the upper ends of the prefabricated cement bricks, steel pull tabs are arranged between adjacent prefabricated cement boards in the horizontal wind direction, self-tapping screws are inserted into the two ends of the steel pull tabs, and the self-tapping screws are matched with the prefabricated cement boards. The traditional pile cap brick membrane is basically formed by brick stacking, but with the span of the building, it cannot meet the construction and design requirements, the prefabricated cement boards are used here, which can greatly shorten the construction period, and the prefabricated cement boards have guaranteed structural strength and consistency after construction.

[0004] Preferably, a first concrete cushion layer is laid on the outer side of the upper part of the prefabricated cement board. It should be noted that the pile cap brick membrane is constructed in a foundation pit, so when the first concrete layer is laid, the soil needs to be backfilled on the outer side of the prefabricated cement board.

[0005] Preferably, a waterproof layer is arranged on the surfaces of the first concrete cushion layer, the prefabricated cement board and the second concrete cushion layer. In the subsequent construction, the pile cap needs to be further constructed inside the pile cap brick membrane, so the waterproof layer needs to be arranged.

[0006] Preferably, the prefabricated cement bricks are stacked in at least three layers. The prefabricated cement bricks are in dispersed stress, and the posture of the prefabricated cement board built above is ensured to be correct.

[0007] Preferably, the steel pull tabs and the self-tapping screws at the corners are located on the outer side of the prefabricated cement board, and the other steel pull tabs and the self-tapping screws are located on the inner side of the prefabricated cement board. The use of the steel pull tabs and the self-tapping screws realizes the connection and fixation of the adjacent prefabricated cement boards, and the steel pull tabs and the self-tapping screws at the corners are arranged on the outer side of the prefabricated cement board, which cannot be installed in the same way inside.

[0008] Preferably, the prefabricated cement plate and prefabricated cement brick are stacked using M20 cement. The connection of the upper and lower adjacent prefabricated cement plate and / or prefabricated cement brick is achieved.

[0009] The beneficial effects of the present application are as follows:

[0010] 1. The prefabricated concrete plate brick mold is used to replace the traditional solid brick mold, which is suitable for larger and deeper pile cap brick mold construction.

[0011] 2. Steel pull pieces are used for vertical joints of prefabricated concrete plates, which greatly improve the construction efficiency and overall stability of the brick mold. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a top view schematic diagram of the prefabricated cement plate stack of the present application;

[0013] Figure 2 is a schematic diagram of the inner wall of the present application;

[0014] Figure 3 is Figure 1 is an enlarged view of position A in FIG. 1;

[0015] Figure 4 is Figure 1 is an enlarged view of position B in FIG. 1;

[0016] Figure 5 is a sectional view schematic diagram of the present application.

[0017] LIST OF REFERENCE NUMBERS:

[0018] 1. Prefabricated cement plate; 2. Prefabricated cement brick; 3. Steel pull piece; 4. Self-tapping screw; 5. First concrete cushion; 6. Engineering pile; 7. Second concrete cushion; 8. Waterproof layer; 9. Pile cap; 10. Column. DETAILED DESCRIPTION

[0019] The present application will be further illustrated below in conjunction with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the present application and are not used to limit the scope of the present application. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0020] As Figures 1 to 5As shown, a pile cap brick membrane structure, a layer of second concrete cushion 7 is laid at the bottom of the foundation pit, when laying the second concrete cushion 7, the engineering pile 6 is buried in the bottom of the foundation pit in advance, the second concrete cushion 7 is used for isolation, and also has the effect of leveling, the edge of the second concrete cushion 7 is stacked with prefabricated cement bricks 2, the prefabricated cement bricks 2 are solid, the upper end of the prefabricated cement bricks 2 is stacked with prefabricated cement boards 1, the prefabricated cement boards 1 are generally stacked with two layers, compared with directly stacking the prefabricated cement boards 1 on the second concrete layer 7, the prefabricated cement bricks 2 are arranged to support the prefabricated cement boards 1 above, so that the position of the prefabricated cement boards 1 is accurate, the steel pull piece 3 is arranged between the adjacent prefabricated cement boards 1 in the horizontal direction, the two ends of the steel pull piece 3 are both inserted with self-tapping screws 4, and the self-tapping screws 4 are matched on the prefabricated cement boards 1, that is, the adjacent prefabricated cement boards 1 in the horizontal direction are fixedly connected through the steel pull piece 3 and the self-tapping screws 4.

[0021] Further, the steel pull piece 3 uses Q235 steel sheet with a size not less than 200*40*1mm, at least two self-tapping screws 4 are arranged at the end of the steel pull piece 3, and the anchoring depth of the self-tapping screws 4 is not less than 50mm. At the same time, when the prefabricated cement boards 1 are stacked in multiple layers, the spacing of the vertical gaps of the adjacent layers is not less than 500mm.

[0022] The upper outer side of the prefabricated cement board 1 is laid with a first concrete cushion 5. That is, after the construction of the prefabricated cement board 1 is completed, the soil is backfilled on the outer side of the prefabricated cement board 1, and then the first concrete cushion 5 is constructed.

[0023] The surface of the first concrete cushion 5, the prefabricated cement board 1 and the second concrete cushion 7 is provided with a waterproof layer 8. After the construction of the waterproof layer 8 is completed, the pile cap 9 is constructed in the interior of the pile cap brick membrane, and the column 10 is continued to be built on the upper end of the pile cap 9.

[0024] The prefabricated cement bricks 2 are stacked in at least three layers. The multiple layers of prefabricated cement bricks 2 ensure the stability of the support of the prefabricated cement boards 1, and too many are not conducive to shortening the construction period.

[0025] The steel pull piece 3 and the self-tapping screw 4 at the corner are located on the outer side of the prefabricated cement board 1, and the other steel pull piece 3 and the self-tapping screw 4 are located on the inner side of the prefabricated cement board 1. The steel pull piece 3 and the self-tapping screw 4 arranged on the inner side of the prefabricated cement board 1 can be buried in the pile cap 9 after the construction of the pile cap 9 to protect them, and the steel pull piece 3 and the self-tapping screw 4 arranged on the outer side of the prefabricated cement board 1 ensure that the same specifications can be used for fixation at the corners, if necessary, the steel pull piece 3 and the self-tapping screw 4 can be arranged on both the inner and outer sides.

[0026] The prefabricated cement board 1 and the prefabricated cement brick 2 are stacked using M20 cement.

[0027] The technical means disclosed in the present application are not limited to the technical means disclosed in the above-mentioned embodiments, and include technical solutions composed of any combination of the above technical features.

Claims

1. A pile cap brick mold membrane structure, characterized by, A second concrete cushion layer (7) is laid at the bottom of the foundation pit, edges of the second concrete cushion layer (7) are stacked with prefabricated cement bricks (2), upper ends of the prefabricated cement bricks (2) are stacked with prefabricated cement plates (1), steel pull tabs (3) are arranged between adjacent prefabricated cement plates (1) in the horizontal wind direction, both ends of the steel pull tabs (3) are inserted with self-tapping screws (4), and the self-tapping screws (4) are matched on the prefabricated cement plates (1).

2. The pile cap brick membrane structure according to claim 1, wherein: A first concrete cushion layer (5) is laid on the outer side of the upper part of the prefabricated cement plate (1).

3. The pile cap brick membrane structure according to claim 2, wherein: Surfaces of the first concrete cushion layer (5), the prefabricated cement plate (1) and the second concrete cushion layer (7) are provided with a waterproof layer (8).

4. The pile cap brick membrane structure according to claim 1, wherein: The prefabricated cement bricks (2) are stacked at least three layers.

5. The pile cap brick membrane structure according to claim 1, wherein: The steel pull tabs (3) and the self-tapping screws (4) at the corners are located on the outer side of the prefabricated cement plate (1), and the other steel pull tabs (3) and the self-tapping screws (4) are located on the inner side of the prefabricated cement plate (1).

6. The pile cap brick membrane structure according to claim 1, wherein: M20 cement is used for stacking the prefabricated cement plate (1) and the prefabricated cement brick (2).