Connecting structure of low bearing platform and bottom plate

The multi-level connection structure reinforced with fiberglass cloth and steel mesh, combined with studs and grouting layers, solves the problems of low connection strength and poor durability between the low foundation and the base plate, achieving stable connection and corrosion resistance, and is suitable for foundation construction in marine environments.

CN223548599UActive Publication Date: 2025-11-14GUANGDONG RONGTONG CONSTR CO LTD
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Patent Information

Application Number
CN202422841280.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-11-14
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing low-basement and base plate connection methods suffer from problems such as low connection strength, poor durability, and complex construction. In particular, they are prone to fatigue damage and corrosion under dynamic loads and harsh environments, affecting the service life and safety of the structure.

Method used

The connection structure is reinforced with fiberglass cloth and steel mesh, combined with a multi-level connection method of studs, nuts and grouting layers. Through the fastening of studs and nuts and the reinforcement of grouting layers, a stable connection structure is formed, which enhances the shear and pull-out resistance and forms an anti-corrosion protective layer on the fiberglass cloth.

Benefits of technology

It significantly improves the shear and pull-out resistance of the connection parts, enhances the stability and durability of the overall structure, reduces construction difficulty and cost, and extends the service life of the structure. It is especially suitable for foundation construction in harsh environments.

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Abstract

The utility model discloses a low bearing platform and bottom plate connecting structure, and belongs to the field of civil engineering, the low bearing platform and bottom plate connecting structure comprises a bottom plate body and a low bearing platform body, glass fiber cloth I is laid at the top of the bottom plate body, a reinforcing mesh is mounted at the top of the glass fiber cloth I, glass fiber cloth II is laid at the bottom of the low bearing platform body, and the reinforcing mesh is mounted at the top of the glass fiber cloth II. A grouting layer is poured in the middle of the bottom plate body and the low bearing platform body, and the bottom plate body and the low bearing platform body are connected through a connecting assembly. The overall rigidity and compactness of the connecting part are enhanced, a stable connecting structure is formed, through the multi-layer connecting mode, the anti-shearing capacity and the anti-drawing capacity of the connecting part are improved, the stability and durability of the overall structure are effectively enhanced, and the service life of the connecting part is prolonged. The anti-shearing capability and the anti-drawing capability of the connecting part of the low bearing platform body and the bottom plate body are obviously improved, and the stability and the safety of the whole structure are ensured.
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Description

Technical Field

[0001] This application relates to the field of civil engineering technology, and in particular to a low-profile foundation and base plate connection structure. Background Technology

[0002] In the field of civil engineering, the connection between the low-level foundation and the base plate is a crucial link that directly affects the safety and stability of the entire building or structure. Existing connection methods mainly include welding, bolting, and embedded part connection. Although these traditional methods have certain reliability and economy, they still have some problems in practical applications. For example, welding may lead to thermal stress concentration, bolting is prone to loosening under long-term loads, and embedded part connection may fail due to insecure embedding.

[0003] 1. Welded connection: The metal is melted at high temperature to form a single unit between the foundation and the base plate. The advantage is high connection strength, but the thermal stress generated during welding can easily lead to local deformation, and subsequent maintenance is more difficult.

[0004] 2. Bolted connection: The foundation and base plate are fastened together using high-strength bolts. The advantages are convenient installation, disassembly, and maintenance; however, the bolts are prone to loosening under long-term stress, resulting in lower connection reliability.

[0005] 3. Embedded component connection: Connectors are pre-embedded during the pouring of the base slab and then connected to the foundation. The advantage is a stable connection, but the positional accuracy of the embedded components is required to ensure a high degree of stability; improper pre-embedding can lead to connection failure.

[0006] In summary, existing methods for connecting low-level foundations to the base plate generally suffer from problems such as low connection strength, poor durability, and complex construction. Especially under dynamic loads and harsh environmental conditions, the connection points are prone to fatigue damage and corrosion, seriously affecting the service life and safety of the overall structure. Utility Model Content

[0007] In view of the shortcomings of the prior art, this utility model provides a low support platform and base plate connection structure, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0008] To achieve the above objectives, this application adopts the following technical solution: a low-base platform and base plate connection structure, comprising a base plate body and a low-base platform body, wherein a first layer of fiberglass cloth is laid on the top of the base plate body, a steel mesh is installed on the top of the first layer of fiberglass cloth, a second layer of fiberglass cloth is laid on the bottom of the low-base platform body, a grouting layer is poured in the middle of the base plate body and the low-base platform body, and the base plate body and the low-base platform body are connected by a connecting component, wherein the connecting component includes studs inserted into the inner wall of the base plate body and the low-base platform body, and nuts are threaded to both ends of the studs.

[0009] In a preferred embodiment, an arc plate is fitted around the outer edge of the steel mesh, and side plates are fixedly installed on both sides of the arc plate. Two self-tapping screws are threaded to the inner wall of the side plate, and the bottom of the self-tapping screws is threaded to the inner wall of the fiberglass cloth and the base plate body.

[0010] By adopting the above technical solution, the steel mesh can be stably positioned at the top of the fiberglass cloth, ensuring that it will not shift or shake when the base plate body and the low foundation body are connected using the connecting components. In this way, the steel mesh can be used to improve the overall connection strength between the low foundation body and the base plate body.

[0011] In a preferred embodiment, washers are inserted at both ends of the outer edge of the stud, and the washers are respectively attached to the top of the lower support body and the bottom of the base plate body. The bottom and top of the two nuts are attached to the washers. The inner walls of the base plate body and the lower support body are provided with pre-embedded holes, and the stud is inserted into the inner wall of the pre-embedded holes.

[0012] By adopting the above technical solutions, the shear and pull-out resistance of the connection between the low-base body and the base plate body is significantly improved, ensuring the stability and safety of the overall structure.

[0013] In a preferred embodiment, the gasket is 5mm thick and made of stainless steel, and the nut is 25mm in diameter and made of 45# steel.

[0014] By adopting the above technical solution, fasteners of this material and size can ensure the overall firmness and corrosion resistance of the connection between the base plate and the low foundation body, extending the service life of the overall structure, and making it more adaptable to harsh environmental conditions.

[0015] In a preferred embodiment, the grouting layer is an epoxy resin grout or a polymer-modified cement-based grout, and the thickness of the grouting layer is 10-15 mm.

[0016] By adopting the above technical solutions, the overall rigidity and compactness of the connection parts can be enhanced to form a stable connection structure. This multi-level connection method not only improves the shear resistance and pull-out resistance of the connection parts, but also effectively enhances the stability and durability of the overall structure.

[0017] In a preferred embodiment, the thickness of the first and second fiberglass cloths is 2 mm.

[0018] By adopting the above technical solution, the impregnation with high-performance epoxy resin can be cured to form a corrosion-resistant protective layer, which is particularly suitable for foundation construction in marine environments.

[0019] The beneficial effects of this application are:

[0020] 1. This low-base platform and base plate connection structure enhances the overall rigidity and compactness of the connection, forming a stable connection structure. Through this multi-level connection method, not only is the shear resistance and pull-out resistance of the connection improved, but the stability and durability of the overall structure are also effectively enhanced. The shear resistance and pull-out resistance of the connection between the low-base platform body and the base plate body are significantly improved, ensuring the stability and safety of the overall structure.

[0021] 2. This low-base platform and base plate connection structure reduces construction difficulty, shortens construction cycle, lowers construction cost, enhances the durability and corrosion resistance of the connection parts, and extends the service life of the overall structure. It is particularly adaptable to harsh environmental conditions. Furthermore, after impregnation with high-performance epoxy resin, fiberglass cloth one and fiberglass cloth two can be cured to form a corrosion-resistant protective layer, making it especially suitable for foundation construction in marine environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a cross-sectional view of the base plate and low foundation body, as well as a partially enlarged structural schematic diagram.

[0024] Figure 3 This is a schematic diagram showing two cross-sections and a partially enlarged structure of the glass fiber cloth in this application;

[0025] Figure 4 This is a schematic diagram of the connection component structure of this application.

[0026] Numbered in the diagram: 1. Base plate body; 2. Fiberglass cloth one; 3. Grouting layer; 4. Fiberglass cloth two; 5. Reinforcing mesh; 6. Arc plate; 7. Side plate; 8. Self-tapping screw; 9. Low foundation body; 10. Connecting assembly; 1001. Stud; 1002. Washer; 1003. Nut. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] Reference Figure 1-4A low-base platform and base plate connection structure includes a base plate body 1 and a low-base platform body 9. The top of the base plate body 1 is covered with fiberglass cloth 2, and a steel mesh 5 is installed on the top of the fiberglass cloth 2. The bottom of the low-base platform body 9 is covered with fiberglass cloth 4. A grouting layer 3 is poured in the middle of the base plate body 1 and the low-base platform body 9. The base plate body 1 and the low-base platform body 9 are connected by a connecting component 10. The connecting component 10 includes studs 1001 inserted into the inner walls of the base plate body 1 and the low-base platform body 9. Nuts 1003 are threaded to both ends of the studs 1001.

[0029] See Figure 3 An arc plate 6 is fitted around the outer edge of the steel mesh 5. Side plates 7 are fixedly installed on both sides of the arc plate 6. Two self-tapping screws 8 are threadedly connected to the inner wall of the side plate 7. The bottom threads of the self-tapping screws 8 are connected to the inner wall of the fiberglass cloth 2 and the base plate body 1, so that the steel mesh 5 can be stably positioned at the top of the fiberglass cloth 2. This ensures that when the base plate body 1 and the low foundation body 9 are connected using the connecting component 10, there will be no positional shift or shaking. In this way, the steel mesh 5 can be used to improve the overall connection strength between the low foundation body 9 and the base plate body 1.

[0030] See Figure 1 - Figure 4 Both ends of the stud 1001 are fitted with washers 1002, which are respectively attached to the top of the lower base body 9 and the bottom of the base plate body 1. The bottom and top of the two nuts 1003 are attached to the washers 1002. The inner walls of the base plate body 1 and the lower base body 9 are provided with pre-embedded holes, and the stud 1001 is inserted into the inner wall of the pre-embedded holes. This significantly improves the shear resistance and pull-out resistance of the connection between the lower base body 9 and the base plate body 1, ensuring the stability and safety of the overall structure.

[0031] See Figure 4 The gasket 1002 is 5mm thick and made of stainless steel, and the nut 1003 is 25mm in diameter and made of 45# steel. This allows the use of fasteners of this material and size to ensure the overall firmness and corrosion resistance of the connection between the base plate body 1 and the low support body 9, extending the service life of the overall structure, and making it more adaptable to harsh environmental conditions.

[0032] See Figure 2 The grouting layer 3 is made of epoxy resin grout or polymer-modified cement-based grout. The thickness of the grouting layer 3 is 10-15mm, which can be used to enhance the overall rigidity and compactness of the connection part and form a stable connection structure. Through this multi-level connection method, not only is the shear resistance and pull-out resistance of the connection part improved, but the stability and durability of the overall structure are also effectively enhanced.

[0033] See Figure 2 The thickness of fiberglass cloth 12 and fiberglass cloth 24 is 2mm, which allows for curing after impregnation with high-performance epoxy resin to form a corrosion-resistant protective layer, making it particularly suitable for foundation construction in marine environments.

[0034] Working principle: Before pouring the base plate body 1, pre-embedded holes are reserved at predetermined positions according to the design drawings to ensure accurate hole diameter and position. After the base plate body 1 is poured, check whether the position and size of the pre-embedded holes meet the requirements. Then, the steel mesh 5 is laid on the top of the fiberglass cloth 2. Then, the arc plate 6 and side plate 7 are stably installed on the top of the base plate body 1 by self-tapping screws 8, thereby positioning the steel mesh 5 and ensuring stability. Then, the low foundation body 9 can be hoisted above the base plate body 1, aligned with the pre-embedded holes, and slowly lowered. Then, the stud 1001 is passed through the pre-embedded holes reserved on the low foundation body 9 and the base plate body 1, and the special nuts 1003 are screwed into both ends. Tighten to the specified torque value using a torque wrench. Then, the grouting layer 3 can be injected into the gap between the low foundation and the base plate to ensure that the grouting is uniform and dense. After the grouting layer 3 has completely cured, check the connection parts again for leakage. If necessary, add grout.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 a connection within 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.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A low-base platform and base plate connection structure, comprising a base plate body (1) and a low-base platform body (9), characterized in that, The top of the base plate body (1) is covered with a first layer of fiberglass cloth (2), and a steel mesh (5) is installed on the top of the first layer of fiberglass cloth (2). The bottom of the low foundation body (9) is covered with a second layer of fiberglass cloth (4). A grouting layer (3) is poured in the middle of the base plate body (1) and the low foundation body (9). The base plate body (1) and the low foundation body (9) are connected by a connecting component (10). The connecting component (10) includes a stud (1001) inserted into the inner wall of the base plate body (1) and the low foundation body (9). Both ends of the stud (1001) are threaded with nuts (1003).

2. The connection structure between a low-level support platform and a base plate according to claim 1, characterized in that, The outer edge of the steel mesh (5) is fitted with an arc plate (6), and side plates (7) are fixedly installed on both sides of the arc plate (6). The inner wall of the side plate (7) is threaded with two self-tapping screws (8), and the bottom of the self-tapping screws (8) is threaded to the inner wall of the fiberglass cloth (2) and the base plate body (1).

3. The connection structure between a low-level support platform and a base plate according to claim 1, characterized in that, Both ends of the stud (1001) are fitted with washers (1002). The washers (1002) are respectively attached to the top of the low support body (9) and the bottom of the base plate body (1). The bottom and top of the two nuts (1003) are attached to the washers (1002). The inner walls of the base plate body (1) and the low support body (9) are provided with pre-embedded holes. The stud (1001) is inserted into the inner wall of the pre-embedded hole.

4. The connection structure between a low-level support platform and a base plate according to claim 3, characterized in that, The gasket (1002) is 5mm thick and made of stainless steel, and the nut (1003) is 25mm in diameter and made of 45# steel.

5. The connection structure between a low-level support platform and a base plate according to claim 1, characterized in that, The grouting layer (3) is an epoxy resin grout or a polymer-modified cement-based grout, and the thickness of the grouting layer (3) is 10-15 mm.

6. The connection structure between a low-level support platform and a base plate according to claim 1, characterized in that, The thickness of the first (2) and the second (4) glass fiber cloths is 2 mm.