Steel truss structure of bulk cargo silo

Abstract

The present application relates to bulk cargo warehouse steel truss structure, including base, be provided with multiple equidistance distribution arc cross main truss on the base, multiple arc cross main truss between all be provided with three installation components, the installation component includes fixed seat, connecting plate and fixed plate, two fixed plate all are fixedly installed with fixed seat, two fixed seat all are provided with connecting plate.Through setting up multiple installation components, multiple installation components are sequentially connected along the distribution direction of arc cross main truss, form continuous longitudinal main truss, all arc cross main truss is connected in series in transverse direction, longitudinal main truss passes through the rigid connection of installation component, longitudinal load that arc cross main truss bears is dispersed and is delivered to base, avoid single arc truss overload, both through the adjustment function adaptation of overall size of warehouse, again through multiple point connection strengthens the integrity of steel truss structure, reduces the deformation of structure under the action of load.

Description

Technical Field

[0001] This application relates to the field of steel structure building technology, and in particular to steel truss structures for bulk cargo silos. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of components such as beams, columns, and trusses made of shaped steel and steel plates, and employs rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components are typically connected by welds, bolts, or rivets. Due to their light weight and ease of construction, steel structures are widely used in large factories, stadiums, and high-rise buildings. Large, enclosed bulk cargo storage prevents dust spillage, meeting green and environmental protection requirements; large, bar-shaped bulk cargo silos are the primary type of bulk cargo storage.

[0003] Existing bulk cargo silo steel truss structures, when in use, have fixed longitudinal main truss lengths, which cannot effectively distribute and transfer the longitudinal load borne by the curved transverse main truss to the base. They are unsuitable for different silo lengths, require custom-made components during construction, are cumbersome to assemble on-site, and suffer from poor scalability and adaptability. Furthermore, their air-supported membrane tension balance and morphological stability are poor, as the lack of tension cable netting or unreasonable cable netting distribution makes it impossible to balance the longitudinal tension of the air-supported membrane with the radial force in the curved area, making the air-supported membrane prone to damage due to excessive local stress. Simultaneously, it is difficult to force the air-supported membrane to maintain its designed shape, leading to slackness and bulging. They also exhibit weak wind and impact resistance and a short service life. Therefore, a new bulk cargo silo steel truss structure is proposed to address these problems. Utility Model Content

[0004] In this embodiment, a steel truss structure for bulk cargo silos is provided to solve the problems of poor longitudinal load transfer due to the fixed length of the longitudinal main truss, inability to adapt to different silo lengths and complicated construction, poor scalability and adaptability, as well as poor tension balance and morphological stability of the air membrane due to the lack of tension cable net or unreasonable distribution, easy damage and short life.

[0005] According to one aspect of this application, a bulk cargo silo steel truss structure is provided, including a base on which a plurality of equally spaced arc-shaped transverse main trusses are arranged. Three mounting components are arranged between each of the plurality of arc-shaped transverse main trusses. Each mounting component includes a fixed seat, a connecting plate, and a fixing plate. Fixed seats are fixedly mounted on two of the fixing plates. A connecting plate is arranged between each of the two fixed seats. Both connecting plates are slidably connected to the fixed seats. A plurality of equally spaced second positioning holes are provided on the connecting plate. A plurality of equally spaced first positioning holes are provided at the top and bottom ends of each of the two fixed seats. A second bolt is provided on each of the two fixed seats. Both second bolts can pass through the second positioning holes and the two first positioning holes, penetrating the fixed seat and the connecting plate, and are threadedly connected to a second locking nut.

[0006] Furthermore, two mounting plates are fixedly installed on each of the multiple arc-shaped transverse main trusses, and four equally spaced mounting holes are provided on each of the multiple mounting plates and the fixed plates.

[0007] Furthermore, each of the mounting plates is provided with four first bolts, and each of the first bolts passes through the mounting hole and the fixing plate and is threaded with a first locking nut.

[0008] Furthermore, an air film is provided on the outer surface of each of the aforementioned arc-shaped transverse main trusses.

[0009] Furthermore, each of the air-supported membranes is equipped with a tension cable net.

[0010] Furthermore, the tension cable net is composed of multiple transverse cables and multiple vertical cables intersecting and distributed. The longitudinal cables are parallel to the longitudinal axis of the base and are fixed at both ends to the end nodes of the arc-shaped transverse main truss. The transverse cables are perpendicular to the longitudinal cables and radiate from the arc top node of the arc-shaped transverse main truss towards the straight sections of the warehouse wall on both sides in a radial distribution.

[0011] Furthermore, each of the multiple arc-shaped transverse main trusses is provided with a buffer layer, and each of the multiple buffer layers abuts against the tension cable net.

[0012] Furthermore, the buffer layer is made of closed-cell polyurethane foam material, with an outer layer wrapped with neoprene rubber film. It is then attached to the outer surface of the arc truss with adhesive tape, and the edges are sealed with silicone rubber strips. The contact points with the buffer layer and the tension cable net are rounded.

[0013] Furthermore, the interior of each of the aforementioned arc-shaped transverse main trusses is provided with a wear-resistant layer.

[0014] Furthermore, the wear-resistant layer is made of high-chromium cast iron and is bolted to the inner wall of the arc-shaped truss. A nickel-based alloy weld layer is added between the high-chromium cast iron and the arc-shaped transverse main truss.

[0015] The beneficial effects of this utility model are as follows: By setting multiple installation components, which are sequentially connected along the distribution direction of the arc-shaped transverse main truss to form a continuous longitudinal main truss, all the arc-shaped transverse main trusses are connected in the transverse direction. The longitudinal main trusses are rigidly connected through the installation components, dispersing and transferring the longitudinal loads borne by the arc-shaped transverse main trusses, such as the longitudinal thrust of bulk cargo and the longitudinal tension of the air film, to the base. This avoids overloading of individual arc-shaped trusses. It not only adapts to the overall size of the silo through the adjustment function, but also enhances the integrity of the steel truss structure through multi-point connection, reducing the deformation of the structure under load. At the same time, the modular composition makes on-site construction more convenient, and the number of installation components can be flexibly increased or decreased according to the length of the silo, improving the scalability and adaptability of the structure. By setting up a tension cable net, the longitudinal cables mainly balance the tension of the air membrane along its length, while the transverse cables disperse the radial force in the arc-shaped area. The intersections are connected by interlocking connectors to ensure that the tension is evenly transmitted to the truss, preventing the air membrane from being damaged due to excessive local stress. This distribution method matches the stress characteristics of the air membrane, which can both force the air membrane to maintain its design shape and prevent slack or bulging, and enhance the wind and impact resistance of the air membrane through the pretension of the cable net, thus extending the service life of the air membrane. By setting a buffer layer, the closed-cell polyurethane foam absorbs impact energy through compression deformation, avoiding wear caused by hard contact between the cable net and the truss. The outer neoprene film blocks moisture and dust, protecting the foam from corrosion. The silicone rubber sealing strip and rounded corner design eliminate the risk of friction between the cable net and the edge of the buffer layer, improving sealing performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of one embodiment of this application; Figure 2 This is a schematic diagram of the overall internal structure of one embodiment of this application; Figure 3 This is a side view of the internal structure of one embodiment of this application; Figure 4 This is an enlarged structural diagram of the mounting component according to one embodiment of this application; Figure 5 This is a partial top view of the internal structure of one embodiment of this application.

[0017] In the diagram: 1. Base; 2. Air membrane; 3. Mounting plate; 4. Arc-shaped transverse main truss; 5. Buffer layer; 6. Tensioned cable mesh; 7. Wear-resistant steel plate; 8. Longitudinal cable; 9. Transverse cable; 10. First locking nut; 11. First bolt; 12. Fixing plate; 13. First positioning hole; 14. Fixing seat; 15. Second locking nut; 16. Connecting plate; 17. Second bolt; 18. Second positioning hole. Detailed Implementation

[0018] The technical solutions of 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0021] Please see Figure 1-5 As shown, the bulk cargo silo steel truss structure includes a base 1. Multiple equally spaced arc-shaped transverse main trusses 4 are arranged on the base 1. Three mounting components are arranged between each of the multiple arc-shaped transverse main trusses 4. Each mounting component includes a fixed seat 14, a connecting plate 16, and a fixing plate 12. Fixed seats 14 are fixedly mounted on two of the fixing plates 12. A connecting plate 16 is arranged between each of the two fixed seats 14. Both connecting plates 16 can be slidably connected to the fixed seats 14. Multiple equally spaced second positioning holes 18 are provided on the connecting plate 16. Multiple equally spaced first positioning holes 13 are provided at the top and bottom of each of the two fixed seats 14. Second bolts 17 are provided on each of the two fixed seats 14. Both second bolts 17 can pass through the second positioning holes 18 and the two first positioning holes 13, penetrating the fixed seat 14 and the connecting plate 16, and are threadedly connected to a second locking nut 15.

[0022] In this technical solution, two mounting plates 3 are fixedly installed on each of the multiple arc-shaped transverse main trusses 4, and four equally spaced mounting holes are opened on each of the multiple mounting plates 3 and the fixing plate 12.

[0023] In this technical solution, each of the multiple mounting plates 3 is provided with four first bolts 11, and each of the multiple first bolts 11 passes through the mounting holes of the fixing plate 12 and the mounting plate 3, and is threadedly connected to a first locking nut 10.

[0024] In this technical solution, an air film 2 is provided on the outer surface of each of the multiple arc-shaped transverse main trusses 4.

[0025] In this technical solution, tension cable nets 6 are provided inside the air membrane 2.

[0026] In this technical solution, the tension cable net 6 is formed by multiple transverse cables 9 and multiple longitudinal cables 8 intersecting and distributed. The longitudinal cables 8 are parallel to the longitudinal axis of the base 1 and are fixed at both ends to the end nodes of the arc-shaped transverse main truss 4. The transverse cables 9 are perpendicular to the longitudinal cables 8 and radiate from the arc top node of the arc-shaped transverse main truss 4 to the straight sections of the warehouse wall on both sides in a radial distribution.

[0027] In this technical solution, buffer layers 5 are provided on each of the multiple arc-shaped transverse main trusses 4, and the multiple buffer layers 5 abut against the tension cable net 6.

[0028] In this technical solution, the buffer layer 5 is made of closed-cell polyurethane foam material, wrapped with a neoprene film on the outside, and is fixed to the outer surface of the arc-shaped transverse main truss 4 by adhesive tape. The edges are sealed with silicone rubber strips, and the contact parts with the buffer layer 5 and the tension cable net 6 are rounded.

[0029] In this technical solution, wear-resistant layers 7 are provided inside the multiple arc-shaped transverse main trusses 4.

[0030] In this technical solution, the wear-resistant layer 7 is made of high-chromium cast iron and is bolted to the inner wall of the arc-shaped transverse main truss 4. A nickel-based alloy weld layer is added between the high-chromium cast iron and the arc-shaped transverse main truss 4.

[0031] In use, the arc-shaped profile of the arc-shaped transverse main truss 4 adapts to the overall structural form, bearing the lateral pressure of the bulk cargo on the inner side and serving as a rigid frame for the air-supported membrane 2 and the tension cable net 6. It disperses external loads through its own structural strength, ensuring the overall frame is stable and preventing deformation due to uneven stress. This provides a reliable installation foundation for all auxiliary structures. The connecting plate 16 can slide freely along the fixed seat 14. By adjusting the relative position of the connecting plate 16 and the fixed seat 14, the distance between the two fixed seats 14 matches the spacing of the arc-shaped transverse main truss 4. Once the position is determined, the second bolt 17 passes through the corresponding first positioning hole 13 and the second... The positioning hole 18, in conjunction with the second locking nut 15, forms a rigid connection, locking the connecting plate 16 and the fixing seat 14 as a whole. This allows the mounting components to flexibly adapt to the distance differences between different arc-shaped transverse main trusses 4, improving the versatility of the structure. Simultaneously, multiple mounting components are sequentially connected along the distribution direction of the arc-shaped transverse main trusses 4, forming a continuous longitudinal main truss. This transversely connects all the arc-shaped transverse main trusses 4. Through the rigid connection of the mounting components, the longitudinal loads borne by the arc-shaped transverse main trusses 4, such as the longitudinal thrust of bulk cargo and the longitudinal tension of the air film 2, are distributed and transferred to the base 1, preventing overload on individual arc-shaped trusses. The modular design adapts to the overall dimensions of the silo and enhances the integrity of the steel truss structure through multi-point connections, reducing structural deformation under load. Simultaneously, the modular construction method facilitates on-site construction, allowing for flexible adjustments to the number of installation components based on the silo length, thus improving the structure's scalability and adaptability. An air-supported membrane 2 covers the outer surface of the arc-shaped transverse main truss 4, maintaining positive pressure internally to naturally taut it and form a closed space. A tension cable net 6 is located inside the air-supported membrane 2. Longitudinal cables 8 primarily balance the tension of the air-supported membrane 2 along its length, while transverse cables 9 disperse the radial force in the arc-shaped area. Interlocking connectors at the intersections ensure even tension transfer to the truss, preventing... The air-supported membrane 2 is damaged due to excessive local stress. This distribution method matches the stress characteristics of the air-supported membrane 2, which can force the air-supported membrane 2 to maintain its design shape and prevent slack or bulging. It can also enhance the wind and impact resistance of the air-supported membrane 2 through the pretension of the cable net and extend the service life of the air-supported membrane 2. The buffer layer 5 is set on the outer surface of the arc-shaped transverse main truss 4 and is in direct contact with the tension cable net 6. Its main body is made of closed-cell polyurethane foam, which has good elasticity. When the cable net has a small displacement due to tension changes, the foam absorbs the impact energy through compression deformation, avoiding wear caused by hard contact between the cable net and the truss. The outer neoprene film blocks water vapor and dust and protects the foam from corrosion.The silicone rubber sealing strip and rounded corner design eliminate the risk of friction between the cable net and the edge of the buffer layer 5, improving sealing performance. The self-adhesive fixing method not only facilitates installation but also adapts to the curvature of the truss surface, ensuring a tight fit between the buffer layer 5 and the truss. Individual replacement is possible in case of localized damage, reducing maintenance difficulty. The wear-resistant layer 7 is located inside the curved transverse main truss 4, directly contacting the bulk cargo. High-chromium cast iron, with its high hardness, resists the cutting and impact of the bulk cargo flow, reducing wear on the inner side of the truss. The nickel-based alloy weld layer, located between the high-chromium cast iron and the truss, utilizes its plasticity to alleviate stress caused by the difference in thermal expansion between the two materials, preventing cracking of the wear-resistant layer 7. The bolted connection method allows for quick replacement of the wear-resistant layer 7 after localized wear without disassembling the entire truss, reducing maintenance downtime and ensuring the stability of the connection points, extending the overall service life of the truss.

[0032] The advantages of this application are: 1. By setting multiple installation components, which are sequentially connected along the distribution direction of the arc-shaped transverse main truss 4, a continuous longitudinal main truss is formed. All the arc-shaped transverse main trusses 4 are connected in the transverse direction. The longitudinal main trusses are rigidly connected through the installation components, distributing the longitudinal loads borne by the arc-shaped transverse main trusses 4, such as the longitudinal thrust of bulk cargo and the longitudinal tension of the air film 2, to the base 1. This avoids overloading of individual arc-shaped trusses. The system adapts to the overall size of the silo through adjustment and enhances the integrity of the steel truss structure through multi-point connection, reducing the deformation of the structure under load. At the same time, the modular composition makes on-site construction more convenient. The number of installation components can be flexibly increased or decreased according to the length of the silo, improving the scalability and adaptability of the structure. 2. By setting up the tension cable net 6, the longitudinal cables 8 mainly balance the tension of the air membrane 2 along the length direction, while the transverse cables 9 disperse the radial force in the arc area. The intersection points are connected by interlocking connectors to ensure that the tension is evenly transmitted to the truss, avoiding excessive local stress on the air membrane 2 and causing damage. This distribution method matches the stress characteristics of the air membrane 2, which can force the air membrane 2 to maintain its design shape and prevent slack or bulging. It can also enhance the wind resistance and impact resistance of the air membrane 2 through the pretension of the cable net, and extend the service life of the air membrane 2. 3. By setting buffer layer 5, closed-cell polyurethane foam absorbs impact energy through compression deformation, avoiding wear caused by hard contact between the cable net and the truss. The outer neoprene film blocks moisture and dust, protecting the foam from corrosion. The silicone rubber sealing strip and rounded corner design eliminate the risk of friction between the cable net and the edge of buffer layer 5, improving sealing performance.

[0033] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution of this disclosure can be achieved, and this is not limited herein.

[0034] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the methods, systems, and devices described above are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A bulk cargo silo steel truss structure, including a base (1), characterized in that: The base (1) is provided with multiple equally spaced arc-shaped transverse main trusses (4). Three installation components are provided between the multiple arc-shaped transverse main trusses (4). The installation components include a fixed seat (14), a connecting plate (16) and a fixed plate (12). Fixed seats (14) are fixedly installed on two fixed plates (12). A connecting plate (16) is provided between the two fixed seats (14). Both connecting plates (16) can be slidably connected to the fixed seats (14). Multiple equally spaced second positioning holes (18) are provided on the connecting plate (16). Multiple equally spaced first positioning holes (13) are provided at the top and bottom of the two fixed seats (14). A second bolt (17) is provided on both fixed seats (14). Both second bolts (17) can pass through the fixed seat (14) and the connecting plate (16) through the second positioning holes (18) and the two first positioning holes (13), and are threadedly connected to a second locking nut (15).

2. The bulk cargo silo steel truss structure according to claim 1, characterized in that: Two mounting plates (3) are fixedly installed on each of the multiple arc-shaped transverse main trusses (4), and four equally spaced mounting holes are provided on each of the multiple mounting plates (3) and fixing plates (12).

3. The bulk cargo silo steel truss structure according to claim 2, characterized in that: Each of the mounting plates (3) is provided with four first bolts (11), and each of the first bolts (11) passes through the mounting hole through the fixing plate (12) and the mounting plate (3), and is threaded with a first locking nut (10).

4. The bulk cargo silo steel truss structure according to claim 1, characterized in that: An air film (2) is provided on the outer surface of each of the multiple arc-shaped transverse main trusses (4).

5. The bulk cargo silo steel truss structure according to claim 4, characterized in that: Each of the air membranes (2) is equipped with a tension cable net (6).

6. The bulk cargo silo steel truss structure according to claim 5, characterized in that: The tension cable net (6) is formed by multiple transverse cables (9) and multiple longitudinal cables (8) intersecting and distributed. The longitudinal cables (8) are parallel to the longitudinal axis of the base (1) and are fixed at both ends to the end nodes of the arc-shaped transverse main truss (4). The transverse cables (9) are perpendicular to the longitudinal cables (8) and radiate from the arc top node of the arc-shaped transverse main truss (4) to the straight sections of the warehouse wall on both sides, and are distributed in a radial pattern.

7. The bulk cargo silo steel truss structure according to claim 1, characterized in that: Each of the multiple arc-shaped transverse main trusses (4) is provided with a buffer layer (5), and each of the multiple buffer layers (5) abuts against the tension cable net (6).

8. The bulk cargo silo steel truss structure according to claim 7, characterized in that: The buffer layer (5) is made of closed-cell polyurethane foam material, wrapped with neoprene film on the outside, and is fixed to the outer surface of the arc-shaped transverse main truss (4) by adhesive tape. The edges are sealed with silicone rubber strips, and the contact parts with the buffer layer (5) and tension cable net (6) are rounded.

9. The bulk cargo silo steel truss structure according to claim 1, characterized in that: The interior of each of the multiple arc-shaped transverse main trusses (4) is provided with a wear-resistant layer (7).

10. The bulk cargo silo steel truss structure according to claim 9, characterized in that: The wear-resistant layer (7) is made of high-chromium cast iron and is bolted to the inner wall of the arc-shaped transverse main truss (4). A nickel-based alloy weld layer is added between the high-chromium cast iron and the arc-shaped transverse main truss (4).

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