FRP material prefabricated foundation of light air-supported membrane structure

Abstract

The invention discloses an FRP (Fiber Reinforce Plastic) material prefabricated foundation of a light air-supported membrane structure, which can be quickly mounted on site and is used for the air-supported membrane structure. Comprising a firm and light film and a plurality of independent prefabricated foundations, and the prefabricated foundations are arranged on a foundation; and the film is fixed on the prefabricated foundation to form an enclosure structure. The prefabricated foundation comprises a membrane fixing device, a thin concrete base and solid sand. The membrane fixing device is fixed on the thin concrete base, and the membrane fixing device is filled with solid sand; the quick installation of the prefabricated foundation mainly adopts an FRP material as the main structure and form of the foundation, and the FRP material is filled with compact sand; in the installation process, connection between each independent prefabricated foundation and the ground is ensured through a set of strong anchor bolts, and the anchor bolts are fixed in the thin concrete foundation. Secondly, a connecting system is arranged between the membrane and the foundation; the foundation innovation enables the foundation to be low in manufacturing cost, light in weight and superior to a traditional concrete foundation.

Description

TECHNICAL FIELD

[0001] The present invention relates to a prefabricated foundation for air supported membrane structure which will make the entire structure modular from foundation to top membrane structure. The present invention aims to provide an economical solution and provide a suitable foundation in snow free environment where wind load is very low and can be neglected. BACKGROUND

[0002] Air supported membrane structures are widely used for quick construction, flexible and modular large space requirements. Though the structure is light in weight, it is still able to resist the internal forces provided by the air pressure blower system. The requirement of the foundation for such structures is to resist the uplift forces provided by the internal pressure as well as to maintain the stability of the membrane under external forces. In conventional air supported membrane structures, the supporting structure and the foundation to resist the uplift forces are made of reinforced concrete, which is not economical as the concrete is costly and heavy and is not easy to install and move, especially in case of temporary use. The problem is more important in low wind load areas where the stability of the structure is not necessary with reinforced concrete. SUMMARY

[0003] The object of the present invention is to find a more economical solution of light weight structure and prefabricated foundation which can be easily moved from one place to another as compared to reinforced concrete foundation while meeting the requirement of resisting the uplift forces due to internal air pressure.

[0004] The technical solution adopted by the present invention is a FRP material prefabricated foundation for light weight air supported membrane structure, comprising: Membrane fixing means 2 to resist the uplift forces without adding any extra weight and not being heavy.

[0005] Compacted sand filled in the water tank 4 to provide sufficient mass to counteract the uplift forces due to internal air pressure. This also improves the stability and load distribution efficiency. The sand filled prefabricated foundation is buried deep enough in the ground to ensure the stability of the foundation to counteract the uplift forces.

[0006] Reinforced anchor bolt 205: Galvanized anchor bolts are used to fix the sand filled compacted tank to the ground to reinforce and ensure the safety of anchoring to provide strong fixation.

[0007] Membrane connecting bolt 204: Each foundation is connected to the membrane which is fixed to the water tank by strong metal bolts. The bolts are made of stainless steel material to ensure their life and prevent corrosion.

[0008] Support sleeve 206, the inner and outer diameters of which are same as the size of the glass fiber tank base hole. The support sleeve has two ends, one end is connected to the first hole and the other end is connected to the output end of the second hole, and the support sleeve is inserted into the base of the glass fiber water tank.

[0009] Air sealing device 203: This device is added to prevent leakage of internal air pressure from the membrane. Its sealing function is to retain air within the membrane, ensuring the membrane's stability. The air sealing material is rubber.

[0010] Thin Concrete Base 3: The sand-filled trench foundation is placed on a 5 cm wide concrete base, placing it on a stable platform and protecting the trench foundation from moisture intrusion. Simultaneously, it distributes stress into the soil, thereby improving the foundation's stability and service life. Technical Advantages Using these innovative prefabricated fiberglass tanks filled with compressed sand as the foundation for an air-supported membrane structure, instead of a reinforced concrete foundation, can save significant costs on concrete and steel reinforcement, and also reduce the need for more workers and machinery for mixing. Fiberglass is cheaper than concrete, and sand is also cheaper and more readily available. This foundation material is lightweight and prefabricated, making it easy to transport and reducing costs, especially when needed on a temporary basis.

[0011] It saves construction and installation time, requiring only a small number of workers and no heavy machinery for on-site installation and assembly, thus shortening the overall construction period. It also allows for flexible design and implementation of the foundation based on the scale of the air-supported membrane structure project.

[0012] Traditional reinforced concrete has a significant negative impact on the environment because cement production in factories generates substantial carbon emissions. This technology helps to significantly reduce carbon emissions. It can be reused at any time because the foundation can be assembled and disassembled for reuse.

[0013] The flexibility of the foundation makes it easy to modify and adaptable to structures of any size, while also being able to withstand uplift forces. Attached Figure Description

[0014] Figure 1 Perspective view of the structure and precast foundation.

[0015] Figure 2 Left view of the structure and precast foundation.

[0016] Figure 3 : Front side view of the structure and precast foundation.

[0017] Figure 4 Cross-sectional view of the precast foundation of this invention.

[0018] Figure 5 Top view of the structure and precast foundation.

[0019] exist Figure 4 In the cross-section of the present invention, the following components are shown: In the diagram, 1. membrane, 2. membrane fixing device, 201. fiberglass tank, 202. protective cover, 203. air sealing device, 204. membrane connecting bolt, 205. reinforcing anchor bolt, 206. support sleeve, 3. thin concrete base, 4. solid sand. Detailed Implementation

[0020] With reference to the accompanying drawings, the technical solutions in the actual embodiments of this invention will be clearly described below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them.

[0021] In the description of this invention, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate orientation or positional relationships and are used only for the purpose of facilitating the description of this invention and simplifying the description. They also indicate orientation or positional relationships based on the accompanying drawings and are used only for the purpose of facilitating the description of this invention and simplifying the description. They 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 this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined using the terms "first" and "second" may explicitly or implicitly include one or more such features. In the description of this invention, "more than one" means two or more, unless otherwise explicitly specified.

[0023] See appendix Figures 1-5 The FRP material prefabricated foundation of the lightweight air-supported membrane structure is an air-supported membrane structure suitable for environments without high wind load pressure. It includes a robust and lightweight membrane (1) and multiple independent prefabricated foundations, which are set on the foundation; the membrane (1) is fixed on the prefabricated foundations to form an enclosure structure. The prefabricated foundation includes a membrane fixing device (2), a thin concrete base (3), and solid sand (4); the membrane fixing device (2) is fixed on the thin concrete base (3), and the interior of the membrane fixing device (2) is filled with solid sand (4); The membrane fixing device (2) includes a fiberglass tank (201) with a protective cover (202) on top; the fiberglass tank (201) is filled with compacted sand (4); each precast foundation is independent and connected to the membrane (1) using an air-sealing device (203) to prevent any air leakage; the side of the fiberglass tank (201) is provided with membrane connecting bolts (204) to secure the air-sealing device (203), the fiberglass tank (201) and the membrane (1). The fiberglass tank (201) on each foundation is fixed to the foundation by a thin concrete base (3), which provides a platform for the base of the fiberglass tank (201) to ensure its stability; the fixing of the fiberglass tank (201), the thin concrete base (3) and the foundation is reinforced by multiple reinforcing anchor bolts (205). The bottom of the fiberglass tank (201) is provided with a support sleeve (206) to fix the membrane fixing device (2) on the thin concrete base (3).

[0024] Furthermore, the fiberglass tank (201) is a prefabricated base tank made of glass fiber reinforced plastic (FRP), which typically refers to the use of glass fibers to reinforce unsaturated polyester, epoxy resin, and phenolic resin. It is commonly referred to as glass fiber reinforced plastic or FRP.

[0025] Furthermore, the fiberglass tank (201) is a prefabricated inverted T-shaped structure, and is correctly filled with compacted sand (4) according to the compaction standard to improve the density, load-bearing capacity and stability of the sand.

[0026] Furthermore, the membrane (1) and the air sealing device (203) are tightly secured using membrane connection bolts (204) to prevent internal air blown out by the bow system from escaping from the roll of membrane (1).

[0027] Furthermore, to ensure that the fiberglass tank (201) is fixed in place, resists tension and is firmly fixed to the ground, a set of reinforcing anchor bolts (205) were installed to embed it into the foundation from the 5 cm thick concrete base (3).

[0028] Furthermore, the membrane connection bolts (204) comprise two rows, located between the air sealing device (203) and the membrane (1), respectively.

[0029] Furthermore, each fiberglass tank (201) is arranged on the same horizontal plane along the foundation. Example

[0030] Precast foundation for the inflatable membrane structure: This foundation structure is prefabricated in a factory and is characterized by its composition of multiple FRP (fiberglass reinforced plastic) components filled with compressed sand to provide uniform load distribution and stability. A reinforcing bar is formed at the top of the foundation to protect the FRP tank blocks of the precast foundation and enhance the overall rigidity of the structure. The connection between the inflatable membrane and the foundation is accomplished through a fixing device that ensures resistance and prevents the membrane from moving under external forces and internal air pressure; to ensure that the internal pressure remains constant and the structure maintains its shape, a sealing system is added at the connection between the membrane and the foundation. Each precast foundation is independent, providing a robust base for the structure.

[0031] The inverted T-shaped design of the precast FRP foundation is designed to resist lift forces without adding extra weight or making it excessively heavy. Anchor bolts: The sand-filled, compacted tank is secured to the ground using galvanized anchor bolts to enhance and ensure anchoring security, providing strong fixation. The support sleeve is cylindrical, with its inner and outer diameters matching the dimensions of the holes at the bottom of the FRP tank. The support sleeve has two ends, one connected to the first hole and the other to the second hole at the output end. The support sleeve is inserted into the bottom of the FRP tank. Membrane fixing bolts: On one side of the top of the foundation, the membrane is secured to the tank with strong metal bolts. The bolts are made of stainless steel to ensure long service life and prevent corrosion. An airtight device is added to the membrane to prevent internal air pressure from leaking out. The sealing function is to retain the air inside the membrane to ensure its stability. The small concrete support of the precast foundation: by placing the tank foundation filled with sand on a 5 cm wide concrete base, the stability and life of the foundation are improved, placing it on a stable platform surface and protecting the tank foundation from moisture, while distributing the force to the soil.

[0032] First, the installation process ensures the connection between each individual precast foundation and the ground through a set of strong anchors, which are fixed from the thin concrete foundation. Second, there is a connection system between the membrane and the foundation. An airtight device is added to the connection system between the membrane and the foundation to ensure that the internal pressure is maintained to maintain the stability of the inflatable structure. This is a modular foundation system designed to ensure the safety and stability of air-supported structures. Precast foundations allow for rapid assembly and reduce on-site work. Each foundation base is filled with compacted sand to ensure good resistance to external and membrane forces and good load distribution. A set of fixing elements secures the membrane to one side of the foundation, ensuring resistance to horizontal and lift forces generated by the internal pressure. Maintaining the internal pressure is necessary to maintain the shape of the membrane, so an airtight device is added at the connection to prevent any air leakage. Precast foundations provide a new foundation method suitable for air-supported membrane structures and other lightweight structures. Its modular design makes it suitable for emergency situations and other applications requiring rapid construction, easy transport, and reusability. This new foundation innovation makes it cheaper and lighter than traditional concrete foundations.

[0033] Based on this technical method, the precast foundation can withstand the vertical force of the overall structural uplift caused by internal pressure.

[0034] The preferred embodiments of the invention described above are merely for illustrative purposes to aid understanding. The invention is not limited to these embodiments, nor does it cover all precise details. It is evident that many modifications and variations can be made based on the description. To assist those skilled in the art in better understanding the invention, this specification provides clear information and explanations of embodiments to better illustrate the functionality and practical applications of the invention.

Claims

1. A prefabricated FRP material foundation for a lightweight air-supported membrane structure, characterized in that: It is an air-supported membrane structure suitable for environments without high wind load pressure; it includes a robust and lightweight membrane (1) and multiple independent prefabricated foundations, which are set on the ground; the membrane (1) is fixed on the prefabricated foundations to form an enclosure structure; the prefabricated foundations include a membrane fixing device (2), a thin concrete base (3) and solid sand (4); the membrane fixing device (2) is fixed on the thin concrete base (3), and the interior of the membrane fixing device (2) is filled with solid sand (4); The membrane fixing device (2) includes a fiberglass tank (201), with a protective cover (202) on the top of the fiberglass tank (201); the fiberglass tank (201) is filled with compacted sand (4); each precast foundation is independent and is connected to the membrane (1) using an air sealing device (203); the side of the fiberglass tank (201) is provided with membrane connecting bolts (204) to fasten the air sealing device (203), the fiberglass tank (201) and the membrane (1); the fiberglass tank (201) on each foundation is fixed to the foundation by a thin concrete base (3), which provides a platform for the base of the fiberglass tank (201) to ensure its stability; The fiberglass tank (201), the thin concrete base (3) and the foundation are reinforced by multiple reinforcing anchor bolts (205); the bottom of the fiberglass tank (201) is provided with a support sleeve (206) to fix the membrane fixing device (2) to the thin concrete base (3).

2. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: The fiberglass tank (201) is a prefabricated base storage tank made of fiberglass reinforced plastic (FRP).

3. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: The fiberglass tank (201) is a prefabricated inverted T-shaped structure, and is filled with compacted sand (4) in accordance with the compaction standard to improve the density, bearing capacity and stability of the sand.

4. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: The membrane (1) and the air sealing device (203) are tightly secured using membrane connection bolts (204) to prevent internal air blown out by the bow system from escaping from the roll of membrane (1).

5. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: To ensure that the fiberglass tank (201) is fixed in place, resists tension and is firmly fixed to the ground, a set of reinforcing anchor bolts (205) were installed to embed it into the foundation from the 5 cm thick concrete base (3).

6. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: The membrane connection bolts (204) comprise two rows, located between the air sealing device (203) and the membrane (1), respectively.

7. The FRP material prefabricated foundation for the lightweight air-supported membrane structure according to claim 1, characterized in that: Each fiberglass tank (201) is arranged on the same horizontal plane along the foundation.

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