Prefabricated silos and their construction methods

Abstract

This application relates to the field of building construction technology, and provides a prefabricated silo and its construction method, including a silo foundation, silo body, silo roof structure, and cast-in-place concrete. The silo foundation has multiple vertical main reinforcement bars arranged in a circular array. The silo body includes multiple concentrically stacked annular silo components from bottom to top. Each silo component includes multiple precast blocks evenly distributed circumferentially. The horizontal cross-section of each precast block is fan-shaped, with vertically penetrating positioning holes. Each precast block has a first through hole and a second through hole. The second through holes of multiple precast blocks are interconnected, and the first through holes of multiple precast blocks on the same silo component are interconnected, forming a casting cavity, which is filled with cast-in-place concrete. Compared to traditional cast-in-place prefabricated silos, this method offers higher construction efficiency and better forming results. Compared to traditional prefabricated silos, the precast block connection nodes have better quality, resulting in higher overall rigidity and load-bearing capacity.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to prefabricated silos and their construction methods. Background Technology

[0002] Currently, the two main types of silos used in practice are reinforced concrete silos and steel plate silos. While steel plate silos offer advantages such as light weight, fast construction speed, and recyclability, they suffer from large internal and external temperature differences during use, leading to condensation and susceptibility to corrosion, making them unsuitable for applications with uneven material loading. Reinforced concrete silos, on the other hand, utilize cast-in-place or prestressed reinforced concrete structures for the silo walls and cast-in-place reinforced concrete structures for the roof, offering excellent performance in terms of corrosion resistance, wind protection, and rainproofing. Existing reinforced concrete silos are further categorized into cast-in-place and prefabricated structures based on their construction methods. Cast-in-place structures require the erection of formwork before concrete pouring. The quality of the formwork directly affects the silo's final quality. The formwork is typically curved, with several curved sections forming a ring-shaped pouring cavity. Concrete is poured layer by layer upwards, with the formwork lifted after each layer of the ring-shaped cast-in-place section is poured before the next layer is poured. The problem with cast-in-place structures is that the formwork needs to be assembled and disassembled multiple times. During assembly, the lack of effective positioning leads to poor assembly quality. The quality of the assembly of several curved formwork pieces on each layer directly affects the forming contour of the annular cast-in-place section on that layer. The forming contour and quality of the annular cast-in-place sections on adjacent layers directly affect the overall quality of the silo. Prefabricated structures use standard splicing units with mortise and tenon joints for easy assembly and positioning. Compared to cast-in-place structures, the silo forming effect is better. However, because the connection structure of the splicing units lacks continuity and integrity compared to cast-in-place structures, the joint connection quality is poor, resulting in lower load-bearing capacity and stiffness of the silo.

[0003] Therefore, finding a silo with high rigidity, high load-bearing capacity, good forming effect, that leverages the advantages of cast-in-place and prefabricated silos while avoiding their disadvantages, and that conforms to modern construction concepts, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] To address the problems in the existing technology, this application proposes a prefabricated silo and its construction method, which solves the problems of existing cast-in-place prefabricated silos lacking effective positioning, poor forming effect, low construction efficiency, poor connection quality of assembly nodes, and weak overall rigidity and load-bearing capacity of existing prefabricated silos.

[0005] In a first aspect, the present invention proposes a prefabricated silo, comprising a silo foundation, a silo body, a silo roof structure, and cast-in-place concrete; the silo foundation has multiple vertical main reinforcement bars arranged in a circular array; the silo body is disposed on the silo foundation, and the silo roof structure is disposed on the silo body; the silo body includes multiple annular silo components stacked concentrically from bottom to top, each silo component including multiple prefabricated blocks evenly distributed circumferentially, the horizontal cross-section of each prefabricated block being fan-shaped, and having vertically penetrating positioning holes thereon; each prefabricated block having a first through hole and a second through hole, the first through hole penetrating the prefabricated block circumferentially, and the second through hole penetrating the prefabricated block vertically and located to the side of the positioning holes; the positioning holes of each prefabricated block mate with the main reinforcement bars; the second through holes of multiple prefabricated blocks mate with the same main reinforcement bar are connected, and the first through holes of multiple prefabricated blocks on the same silo component are connected, forming a casting cavity penetrating the silo body, and the cast-in-place concrete is filled in the casting cavity.

[0006] Furthermore, a third through hole is provided on the precast block, the third through hole penetrating the inner arc surface and the outer arc surface of the precast block, wherein the inner arc surface of the precast block is the inner wall surface of the silo assembly, and the outer arc surface of the precast block is the outer wall surface of the silo assembly; the third through hole is connected to the casting cavity.

[0007] By setting a third through hole on the precast block, it is convenient to pour concrete into the casting cavity from the side, and it is also convenient to adjust individual precast blocks.

[0008] Furthermore, the silo assembly also includes a plurality of tie rods distributed along its circumference, the tie rods passing through the first through holes of two adjacent precast blocks of the same silo assembly, and the two ends of the tie rods being connected to the main reinforcement passing through the two precast blocks respectively.

[0009] By connecting the main reinforcement bars through the precast blocks with tie rods, a cylindrical steel mesh is formed, serving as the main framework of the silo and enhancing its structural strength and load-bearing capacity. Additionally, the tie rods can also connect adjacent top precast blocks, reducing joint gaps and improving splicing quality.

[0010] Furthermore, the tie rod includes a first reinforcing bar, a second reinforcing bar, and a sleeve; one end of the first reinforcing bar is provided with a first hook, and the other end is fixedly provided with the sleeve; one end of the second reinforcing bar is provided with a second hook, and the other end of the second reinforcing bar is coaxially inserted into the sleeve; the side wall of the second reinforcing bar is provided with a positioning groove along its length direction, and the side wall of the second reinforcing bar is also provided with a limiting groove, the limiting groove communicating with the positioning groove; the inner wall of the sleeve is provided with a positioning block, and the positioning block is located in the positioning groove.

[0011] The first and second reinforcing bars are connected via a sleeve, allowing them to move closer together or further apart. When a tie bar needs to be used to connect two main reinforcing bars, the tie bar must first extend due to the presence of the first and second hooks, allowing the first and second hooks to hook onto the two main reinforcing bars respectively. Then, the tie bar is shortened to tighten the main reinforcing bars. When the tie bar needs to extend, the extension direction is restricted by positioning the positioning block within the positioning groove. The relative rotation of the first and second reinforcing bars prevents relative displacement of the first and second reinforcing bars, thus limiting the length of the main reinforcing bars. However, the first and second reinforcing bars can still rotate relative to each other, causing the first and second hooks to rotate in opposite directions to clamp the two main reinforcing bars.

[0012] Furthermore, the silo roof structure includes a silo roof plate, the bottom end of which is provided with a plurality of vertical countersunk holes arranged in a circular array; the top ends of a plurality of main ribs are inserted into the plurality of countersunk holes one by one.

[0013] Furthermore, the top panel of the silo is equipped with a ventilation device and an openable cover.

[0014] Furthermore, the precast block is a concrete block or a foam block.

[0015] Furthermore, an annular groove is provided at the top of the silo foundation, the plurality of main reinforcing bars are distributed at the bottom of the annular groove, and the bottom of the silo body is embedded in the annular groove.

[0016] Furthermore, the inner wall of the casting cavity of the precast block is roughened.

[0017] Secondly, the present invention also proposes a construction method for prefabricated silos, comprising the following steps:

[0018] Construct the silo foundation and install multiple vertical main reinforcement bars in a circular array on the silo foundation;

[0019] Multiple prefabricated blocks are installed on the silo foundation, with a main rib inserted into the positioning hole of each prefabricated block. Multiple prefabricated blocks of the same height are spliced ​​end to end to form a ring-shaped silo assembly. Multiple silo assemblies are then concentrically stacked from bottom to top to form the silo body.

[0020] The inner template is installed inside the silo body, so that the inner template fits against the inner arc surface of the precast block; the outer template is installed outside the silo body, so that the outer template fits against the outer arc surface of the precast block; the inner template and the outer template are connected by tie rods.

[0021] The cast-in-place concrete is filled into the casting cavity formed by connecting the first and second through holes of the silo body;

[0022] The prefabricated silo roof structure is installed on top of the silo body.

[0023] The beneficial effects of this invention are as follows: By setting vertical main reinforcement bars on the silo foundation and inserting them into the positioning holes of the precast blocks, the precast blocks are positioned. Each silo assembly is composed of multiple precast blocks spliced ​​circumferentially, and the positioning of each precast block also achieves the positioning and contour limitation of the silo assembly, ultimately limiting the contour of the silo body and ensuring the forming effect of the prefabricated silo. Furthermore, the casting cavity formed by connecting the first and second through holes on the precast blocks, and filling the casting cavity with cast-in-place concrete, transforms the main reinforcement bars into the internal skeleton of the cast-in-place concrete. The cast-in-place concrete connects the various precast blocks into a whole, improving the overall rigidity and load-bearing capacity of the prefabricated silo. Compared to traditional cast-in-place prefabricated silos, this invention offers higher construction efficiency, better forming effect, and easier formwork erection. Compared to traditional prefabricated silos, the precast block connection nodes have better quality, resulting in higher overall rigidity and load-bearing capacity. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the assembled silo of the present invention.

[0025] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure after the top structure of the warehouse is hidden.

[0026] Figure 3 for Figure 2 A schematic diagram of the structure after the cast-in-place concrete is concealed.

[0027] Figure 4 for Figure 3 A structural diagram showing only one silo component on the basis of a silo.

[0028] Figure 5 for Figure 4 The diagram shows only a structural schematic of one prefabricated block of the silo assembly.

[0029] Figure 6 for Figure 5 A three-dimensional enlarged structural diagram of a prefabricated block.

[0030] Figure 7 This is a partially enlarged schematic diagram of the main reinforcing bar connection of the present invention.

[0031] Figure 8 This is an enlarged structural schematic diagram of the tie rod of the present invention.

[0032] Figure 9 for Figure 8 A partial cross-sectional structural diagram.

[0033] Figure 10 for Figure 9A schematic diagram of the structure after the first and second reinforcing bars of the tie rod are moved away from each other.

[0034] Figure 11 for Figure 9 A schematic diagram of the structure after the first and second reinforcing bars of the tie rod are completely separated.

[0035] Figure 12 for Figure 11 A three-dimensional partial structural diagram of the second reinforcing bar.

[0036] In the figure, 1 is the silo foundation; 2 is the silo body; 3 is the silo roof structure; 4 is the cast-in-place concrete; 5 is the main reinforcement; 6 is the precast block; 7 is the positioning hole; 8 is the first through hole; 9 is the second through hole; 10 is the third through hole; 11 is the tie rod; 12 is the first reinforcing bar; 13 is the second reinforcing bar; 14 is the sleeve; 15 is the positioning groove; 16 is the limiting groove; and 17 is the positioning block. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 12 The prefabricated silo shown includes a silo foundation 1, a silo body 2, a silo roof structure 3, and cast-in-place concrete 4. Multiple vertical main reinforcing bars 5 are arranged in a circular array on the silo foundation 1; in this embodiment, 20 main reinforcing bars 5 are provided. The silo body 2 is placed on the silo foundation 1, and the silo roof structure 3 is placed on the silo body 2. The length of each main reinforcing bar 5 is greater than the height of the silo body 2, therefore, the top of the main reinforcing bar 5 extends from the top of the silo body 2.

[0039] The silo body 2 includes multiple annular silo assemblies concentrically stacked from bottom to top. Each silo assembly includes multiple prefabricated blocks 6 evenly distributed circumferentially. The horizontal cross-section of each prefabricated block 6 is fan-shaped, and a vertically penetrating positioning hole 7 is provided on it. A first through hole 8 and a second through hole 9 are provided on each prefabricated block 6. The first through hole 8 penetrates the prefabricated block 6 circumferentially and is horizontally positioned. The second through hole 9 penetrates the prefabricated block 6 vertically and is located to the side of the positioning hole 7. 9 are vertically installed, with positioning holes 7 located at the center of precast blocks 6, and two second through holes 9 distributed on both sides of the positioning holes 7. The positioning holes 7 of each precast block 6 are matched with the main reinforcement 5. The diameter of the positioning holes 7 is 10mm, and the diameter of the main reinforcement 5 is 12mm. The second through holes 9 of multiple precast blocks 6 that match the same main reinforcement 5 are connected, and the first through holes 8 of multiple precast blocks 6 on the same silo assembly are connected, forming a pouring cavity that runs through the silo body 2. Cast-in-place concrete 4 is filled into the pouring cavity. When the cast-in-place concrete 4 is filled into the pouring cavity, the cast-in-place concrete 4 flows to any position in the pouring cavity and fills the pouring cavity. Since the pouring cavity is formed by connecting the first through holes 8 and the second through holes 9 of different precast blocks 6, after the cast-in-place concrete 4 fills the pouring cavity and solidifies, it connects multiple precast blocks 6 into a whole.

[0040] A third through hole 10 is provided on the precast block 6, which penetrates the inner arc surface and the outer arc surface of the precast block 6. The inner arc surface of the precast block 6 is the inner wall surface of the silo assembly, and the outer arc surface of the precast block 6 is the outer wall surface of the silo assembly. The third through hole 10 is connected to the casting cavity.

[0041] Because the prefabricated silos are quite tall, it would be difficult to fill the pouring cavity by directly pouring cast-in-place concrete 4 from the top, resulting in an unsatisfactory pouring effect. Therefore, a third through hole 10 is provided on the precast block 6, which connects to the outer and inner arc surfaces. This allows the silo body 2 to be divided into several layers along its height, with each layer containing several silo components. During concrete pouring for each layer, templates are set on both the inner and outer sides for layer-by-layer pouring to facilitate vibration and compaction.

[0042] The third through hole 10 also serves to facilitate the adjustment of the position of the precast block 6.

[0043] The silo assembly also includes a plurality of tie rods 11 distributed along its circumference. The tie rods 11 pass through the first through holes 8 of two adjacent precast blocks 6 of the same silo assembly, and the two ends of the tie rods 11 are respectively connected to the main ribs 5 passing through the two precast blocks 6.

[0044] The tie bar 11 can be inserted into the casting cavity of the precast block 6 through the third through hole 10 and pass through the first through hole 8 to facilitate the connection between the tie bar 11 and the main reinforcement bar 5. The connection between the tie bar 11 and the main reinforcement bar 5 can be welding or steel bar binding.

[0045] Each precast block 6 assembly has two tie bars 11 connected to its main reinforcement 5. One tie bar 11 is used to connect with the main reinforcement 5 of the adjacent precast block 6 on the left, and the other tie bar 11 is used to connect with the main reinforcement 5 of the adjacent precast block 6 on the right. In this way, multiple tie bars 11 can connect the main reinforcement 5 of multiple precast blocks 6 of the same silo assembly into a whole. The tie bars 11 of the same silo assembly can act as hoops, but unlike the form of hoops surrounding the outside of the silo assembly, the tie bars 11 in this embodiment are located inside the casting cavity and can be combined with the cast-in-place concrete 4 to improve the structural strength and rigidity, while not being exposed outside the silo body 2 and not affecting the aesthetics.

[0046] The tie rod 11 includes a first reinforcing bar 12, a second reinforcing bar 13, and a sleeve 14; one end of the first reinforcing bar 12 is provided with a first hook, and the other end is fixedly provided with the sleeve 14; one end of the second reinforcing bar 13 is provided with a second hook, and the other end of the second reinforcing bar 13 is coaxially inserted into the sleeve 14; the side wall of the second reinforcing bar 13 is provided with a positioning groove 15 along its length direction, and the side wall of the second reinforcing bar 13 is also provided with a limiting groove 16, which communicates with the positioning groove 15; the inner wall of the sleeve 14 is provided with a positioning block 17, which is located in the positioning groove 15.

[0047] The sleeve 14 connects the first reinforcing bar 12 and the second reinforcing bar 13, allowing them to approach or move away from each other. When it is necessary to tie the tie bar 11 to the two main reinforcing bars 5, due to the presence of the first hook and the second hook, the tie bar 11 needs to be extended first so that the first hook and the second hook can hook the two main reinforcing bars 5 respectively, and then the tie bar 11 can be shortened to tighten the main reinforcing bars 5. When the tie bar 11 needs to be extended, the extension direction of the tie bar 11 is restricted by positioning the positioning block 17 in the positioning groove 15; and by the relative rotation of the first reinforcing bar 12 and the second reinforcing bar 13, the positioning block 17 is positioned in the limiting groove 16, preventing the first reinforcing bar 12 and the second reinforcing bar 13 from relative displacement, thus limiting the length of the main reinforcing bars 5. However, at this time, the first reinforcing bar 12 and the second reinforcing bar 13 can still rotate relative to each other, causing the first hook and the second hook to rotate in opposite directions to clamp the two main reinforcing bars 5.

[0048] The silo roof structure 3 includes a silo roof plate, the bottom of which is provided with multiple vertical countersunk holes arranged in a circular array; the tops of multiple main ribs 5 are inserted into the multiple countersunk holes one by one. The side wall of the silo roof plate can be provided with markings to indicate the position of the countersunk holes, so as to facilitate the quick connection between the silo roof plate and the main ribs 5.

[0049] The silo top is equipped with a ventilation system and an openable cover. The ventilation system can be a non-powered ventilator. The silo top has a cover hole, and the cover is laid over the cover hole. When the cover is opened, the materials to be stored can be loaded into the silo body 2 through the cover hole.

[0050] Precast block 6 can be either a concrete block or a foam block. When precast block 6 is made of concrete, it improves the overall structural strength and load-bearing capacity of the prefabricated silo. When precast block 6 is made of foam, it reduces weight and cost, and also facilitates construction.

[0051] The inner wall of the casting cavity of precast block 6 is roughened. The roughened surface allows for better connection with the cast-in-place concrete 4.

[0052] The top of the silo foundation 1 is provided with an annular groove, and multiple main reinforcing bars 5 are distributed at the bottom of the annular groove. The bottom of the silo body 2 is embedded in the annular groove.

[0053] In this embodiment, the top of the silo foundation 1 has an annular notch at the edge, the main reinforcing bars 5 are distributed at the bottom of the notch, and the bottom of the silo body 2 is located at the notch.

[0054] Based on the same inventive concept, this invention also proposes a construction method for prefabricated silos, comprising the following steps:

[0055] The silo foundation 1 is constructed, and multiple vertical main reinforcing bars 5 are installed in a circular array on the silo foundation 1. The silo foundation 1 can be precast or cast-in-place. In this embodiment, the silo foundation 1 is cast-in-place. After casting and before the concrete solidifies, the main reinforcing bars 5 are inserted into the silo foundation 1. After the concrete solidifies, the main reinforcing bars 5 are fixed to the silo foundation 1. Based on the design dimensions of the prefabricated silo, the circular dimension of its horizontal cross-section is determined. Based on this dimension, the horizontal cross-section of the prefabricated silo is divided into multiple sector rings, with one main reinforcing bar 5 positioned at the center of each sector ring to determine the number and location of the main reinforcing bars 5.

[0056] Multiple precast blocks 6 are installed on the silo foundation 1, with a main rib 5 inserted into the positioning hole 7 of each precast block 6, so that multiple precast blocks 6 at the same height are spliced ​​together end to end to form a ring-shaped silo assembly; tie rods 11 are used to tie the corresponding main ribs 5 of the precast blocks 6 at the same height, so that the precast blocks 6 are pressed together.

[0057] After assembling the bottommost silo assembly, the next layer of silo assemblies is assembled, and multiple silo assemblies are concentrically stacked from bottom to top to form silo body 2.

[0058] The inner template is installed inside the silo body 2, so that the inner template fits against the inner arc surface of the precast block 6; the outer template is installed outside the silo body 2, so that the outer template fits against the outer arc surface of the precast block 6; the inner template and the outer template are connected by tie rods, which pass through the third through hole 10; a release agent is applied before the templates and the outer template are installed.

[0059] Cast-in-place concrete 4 is poured and filled into the casting cavity formed by the connection of the first through hole 8 and the second through hole 9 in the silo body 2. After the cast-in-place concrete 4 has solidified, the inner and outer formwork are removed, and spray curing is carried out.

[0060] The prefabricated silo top structure 3 is installed on the top of the silo body 2.

[0061] By setting vertical main reinforcement bars 5 on the silo foundation 1 and inserting them into the positioning holes 7 of the precast blocks 6, the positioning of the precast blocks 6 is achieved. Each silo assembly is composed of multiple precast blocks 6 spliced ​​circumferentially. The positioning of each precast block 6 also achieves the positioning and contour limitation of the silo assembly, ultimately limiting the contour of the silo body 2 and ensuring the forming effect of the prefabricated silo. The casting cavity is formed by connecting the first through hole 8 and the second through hole 9 on the precast blocks 6, and the cast-in-place concrete 4 is filled into the casting cavity. At this time, the main reinforcement bars 5 become the internal skeleton of the cast-in-place concrete 4. The cast-in-place concrete 4 can connect the various precast blocks 6 into a whole, improving the overall rigidity and load-bearing capacity of the prefabricated silo. Compared with traditional cast-in-place concrete silos, the construction efficiency is higher, the forming effect is better, and the formwork is easier to erect. Compared with traditional prefabricated silos, the connection nodes of the precast blocks 6 have better quality, and the overall rigidity and load-bearing capacity are higher.

[0062] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fabricated silo, characterized in that, The silo foundation, the silo body, the silo top structure and the cast-in-place concrete; a plurality of vertical main reinforcements are arranged in a ring array on the silo foundation; the silo body is arranged on the silo foundation, the silo top structure is arranged on the silo body, the silo body comprises a plurality of ring-shaped silo components stacked concentrically from bottom to top, each silo component comprises a plurality of prefabricated blocks uniformly distributed in the circumferential direction, the horizontal cross section of the prefabricated block is a fan ring, a vertical through positioning hole is arranged on the prefabricated block, a first through hole and a second through hole are arranged on the prefabricated block, the first through hole penetrates the prefabricated block along the circumferential direction of the prefabricated block, the second through hole penetrates the prefabricated block vertically and is located on the side of the positioning hole; the positioning hole of each prefabricated block is matched with the main reinforcement; the second through holes of a plurality of prefabricated blocks matched with the same main reinforcement are communicated, and the first through holes of a plurality of prefabricated blocks on the same silo component are communicated to form a pouring cavity penetrating the silo body, and the cast-in-place concrete is filled in the pouring cavity.

2. The fabricated silo of claim 1, wherein, A third through hole is arranged on the prefabricated block, the third through hole penetrates the inner arc surface and the outer arc surface of the prefabricated block, wherein the inner arc surface of the prefabricated block is the inner wall surface of the silo component, and the outer arc surface of the prefabricated block is the outer wall surface of the silo component; the third through hole is communicated with the pouring cavity.

3. The fabricated silo of claim 2, wherein, The silo component further comprises a plurality of draw reinforcements distributed along the circumferential direction thereof, the draw reinforcement penetrates the first through holes of two adjacent prefabricated blocks of the same silo component, and the two ends of the draw reinforcement are respectively connected with the main reinforcements penetrating the two prefabricated blocks.

4. The fabricated silo of claim 3, wherein, The draw reinforcement comprises a first steel reinforcement, a second steel reinforcement and a sleeve; one end of the first steel reinforcement is provided with a first hook, and the other end of the first steel reinforcement is fixedly provided with the sleeve; one end of the second steel reinforcement is provided with a second hook, the other end of the second steel reinforcement is coaxially inserted into the sleeve, a side wall of the second steel reinforcement is provided with a positioning groove arranged along the length direction of the second steel reinforcement, and the side wall of the second steel reinforcement is further provided with a limiting groove in communication with the positioning groove; a positioning block is arranged on the inner wall of the sleeve and located in the positioning groove.

5. The fabricated silo of claim 1, wherein, The silo top structure comprises a silo top plate, a plurality of vertical countersunk holes arranged in a ring array are arranged at the bottom end of the silo top plate; the top ends of a plurality of main reinforcements are inserted into a plurality of countersunk holes one by one.

6. The fabricated silo of claim 5, wherein, A ventilation device and an openable cover plate are arranged on the silo top plate.

7. The fabricated silo of claim 1, wherein, The prefabricated block is a concrete block or a foam block.

8. The fabricated silo of claim 1, wherein, The top end of the silo foundation is provided with a ring-shaped groove, a plurality of main reinforcements are distributed at the bottom of the ring-shaped groove, and the bottom of the silo body is embedded in the ring-shaped groove.

9. The fabricated silo of claim 1, wherein, The inner wall of the pouring cavity of the prefabricated block is a roughened surface.

10. A method of constructing a fabricated silo as claimed in claim 1, characterised in that, The method comprises the following steps: constructing a silo foundation and installing a plurality of vertical main reinforcements in a ring array on the silo foundation; installing a plurality of prefabricated blocks on the silo foundation, inserting a main reinforcement into the positioning hole of each prefabricated block, and connecting a plurality of prefabricated blocks at the same height to form a ring-shaped silo component; stacking a plurality of silo components concentrically from bottom to top to form the silo body; installing an inner formwork in the interior of the silo body so that the inner formwork is attached to the inner arc surface of the prefabricated block; The outer formwork is installed outside the silo body and is attached to the outer arc surface of the prefabricated blocks; the inner formwork and the outer formwork are pulled together by the tensioning screw; The cast-in-situ concrete is filled in the pouring cavity formed by the first through hole and the second through hole of the silo body; The prefabricated top structure is installed at the top end of the silo body.

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