Vertical silo construction method based on column wall separation

Abstract

The invention discloses a vertical silo construction method based on column-wall separation, which comprises silo wall construction and buttress column construction, the silo wall construction and the buttress column construction are separately carried out, the silo wall construction is firstly completed, and the inner wall surface of the silo wall is regular in shape, so that the silo wall is better suitable for slip form process construction; and then the buttress is constructed on the solidified inner wall face of the silo wall, so that the buttress and the silo wall form a whole. The original irregular special-shaped structure is decomposed into the cylindrical vertical silo wall and the cylindrical buttress, and the slip-form construction process is combined, so that the quality problem and the safety problem confronted by the existing special-shaped slip-form section construction are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction operations, and in particular relates to a vertical silo construction method based on column-wall separation. Background Art

[0002] The lower cross-section of the vertical silo has the characteristics of large size and large number of buttresses, resulting in a special-shaped structural section. The existing construction plan is: the buttresses will be reinforced while the column wall is sliding up, and the column wall will slide up at the same time during the sliding formwork process. However, in fact, during the sliding formwork construction process of special-shaped cross-sections, concentrated stress is easily generated at the buttresses, the friction is different, and the overall force is uneven, which leads to problems such as large template gaps and mold explosion during the sliding formwork process, and even the problem of instability of the sliding formwork platform. The cost of later repairs is high, and the repairs are difficult, time-consuming and labor-intensive. Therefore, it is necessary to propose a new construction method to solve the above problems. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a vertical silo construction method based on column-wall separation, which decomposes the original irregular and special-shaped structure into cylindrical vertical silo walls and columnar buttresses, and combines the slipform construction technology to solve the quality and safety problems faced by the existing special-shaped slipform section construction.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows:

[0005] A vertical silo construction method based on column-wall separation includes silo wall construction and buttress column construction, and the steps are as follows:

[0006] S1. Vertical silo construction: The silo wall is formed by slipform construction;

[0007] S11. A plurality of vertical wall main bars and column main bars are arranged along the height direction of the warehouse wall, wherein a plurality of inner column stirrups are arranged on the column main bars from bottom to top along the height of the warehouse wall, and the inner column stirrups include a transverse welding section, a longitudinal welding section and a connecting section in the same plane, the inner ends of the two longitudinal welding sections are respectively connected to the ends of the transverse welding sections, the longitudinal welding sections are in a vertical state with the transverse welding sections, the outer end of each longitudinal welding section is connected to the connecting section, the transverse welding sections and the longitudinal welding sections are both welded and fixed to the column main bars, and the connecting section is bent inwards and parallel to the transverse welding sections;

[0008] S12, assembling the slipform platform, with the main wall reinforcement and column reinforcement in the slipform platform, pouring concrete to cover all the main wall reinforcement, column reinforcement and inner column stirrups;

[0009] S13, the sliding formwork platform is continuously slid up, and each time the formwork is lifted, the exposed wall surface is smoothed and finished with concrete slurry until the sliding formwork platform is slid up to the highest point and separated from the silo wall, thereby obtaining the silo wall of the vertical silo;

[0010] During the lifting process, when the slide rises to the height where the inner column stirrups are located, the connecting section is chiseled out and rotated outward to be exposed on the inner wall surface of the warehouse wall;

[0011] S2, buttress column construction: connected with the inner column stirrups, and formed into buttress columns through slipform construction;

[0012] S21, straighten the connection section that is bent and exposed on the silo wall surface, make it perpendicular to the silo wall surface where the connection section is located, and weld the tie bars along the length direction of the connection section;

[0013] S22, arrange outer column stirrups outside the inner column stirrups, the outer column stirrups include a transverse section and a longitudinal section in the same plane, the ends of the two longitudinal sections are respectively connected to the two ends in the transverse section, the longitudinal section is perpendicular to the transverse section, and the longitudinal section is welded and fixed to the connecting section and tie bar on the same side;

[0014] S23, side steel formwork and outer steel formwork are arranged along the height direction of the buttress column, wherein a forming space of the buttress column is formed between two side steel formworks, one outer steel formwork and the warehouse wall, the connection between the side steel formworks and the outer steel formworks is welded and fixed, the outer column stirrups corresponding to the buttress column are placed in the forming space from top to bottom, and concrete is poured into the forming space;

[0015] S24, the concrete in the molding space is solidified, and the outer steel formwork and the side steel formwork are continuously slid up. Each time a formwork is lifted, the wall surface of the exposed buttress column is smoothed with concrete slurry until the outer steel formwork and the side steel formwork slide to the highest point and are separated from the buttress column, thereby obtaining the buttress column of the vertical silo;

[0016] S3, repeat step S2 to obtain a plurality of buttresses, and the plurality of buttresses and the silo wall form a vertical silo.

[0017] Preferably, in step S11, the length of the connecting segment is greater than or equal to 10 times the diameter of the connecting segment.

[0018] Preferably, in step S13, the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in step S12.

[0019] Preferably, in step S13, after the connecting section is exposed from the inner wall surface of the warehouse wall, the inner wall surface where the connecting section is located is roughened.

[0020] Preferably, in step S21, when the connecting section is rotated outward, the connecting section and the longitudinal welding section on the same side are in the same straight line.

[0021] Preferably, in step S21, the end of the tie bar away from the inner wall surface is bent into a hook shape.

[0022] Preferably, in step S22, the transverse section of the outer column stirrups is the same length as the transverse welding section of the inner column stirrups.

[0023] Preferably, in step S23, two sides of the outer steel formwork are respectively abutted against the side steel formworks on the same side, and a plurality of first tensioning components are arranged between the two side steel formworks;

[0024] The first tensioning assembly includes a first screw rod, a side connecting piece and a first nut. The side connecting piece is arranged on the outer side of the side steel formwork. A plurality of the first screw rods pass through the side connecting pieces of the two side steel formworks. Both ends of the first screw rod are respectively connected to two first nuts to lock the first screw rod with the two side steel formworks.

[0025] After the concrete in the forming space is solidified, the first tensioning assembly is removed.

[0026] More preferably, in step S23, a second tensioning assembly is arranged on the outer side of the outer steel formwork, the second tensioning assembly comprises a second screw, an outer connecting piece and a second nut, the length of the outer connecting piece is greater than the distance between the outer sides of the two side steel formworks, the outer connecting piece is arranged on the outer side of the outer steel formwork, the second screw is outside the side connecting piece, one end of the second screw passes through the warehouse wall, the other end of the second screw passes through the end of the outer connecting piece, and the two ends of the second screw are respectively connected to the two second nuts to fix the outer steel formwork and the side steel formworks;

[0027] After the concrete in the forming space is solidified, the second tensioning assembly is removed.

[0028] More preferably, in step S23, after the silo wall concrete reaches a certain strength, a through hole cooperating with the second screw is drilled.

[0029] Preferably, in step S24, the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in steps S12 and S23.

[0030] Beneficial effects:

[0031] The present invention improves the original integrated construction into split construction, decomposes the original irregular special-shaped structure into a cylindrical silo wall and a columnar buttress, and combines the slipform construction process to ensure construction quality. The present invention cleverly pre-buries inner column stirrups and subsequently welds outer column stirrups to form the buttress and the silo wall into a continuous whole, and the overall structural strength of the silo is also guaranteed, solving the quality and safety problems faced by existing special-shaped slipform sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The right side shows a schematic diagram of step S12, and the left side shows a schematic diagram of the inner column stirrups in step S12;

[0033] Figure 2 The right side shows a schematic diagram of step S13, and the left side shows a schematic diagram of the inner column stirrups in step S13;

[0034] Figure 3 The right side shows a schematic diagram of step S22, and the left side shows a schematic diagram of the connection between the inner column stirrups and the outer column stirrups in step S22;

[0035] Figure 4 FIG. 2 is a schematic diagram of step S23 .

[0036] Figure numerals: 1-warehouse wall, 2-column main reinforcement, 3-wall main reinforcement, 4-inner column stirrups, 5-tie reinforcement, 6-outer column stirrups, 7-side steel formwork, 8-outer steel formwork, 9-side connecting piece, 10-first screw, 11-first nut, 12-outer connecting piece, 13-second screw, 14-second nut;

[0037] 41- transverse welding section, 42- longitudinal welding section, 43- connecting section;

[0038] 61- transverse segment, 62- longitudinal segment. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] The technical solution of the present invention is described in detail below with specific embodiments.

[0041] like Figure 1-4 As shown. The present invention proposes a vertical silo construction method based on column-wall separation for the lower layer of the vertical silo, including the construction of the silo wall 1 and the construction of the buttress column. The present invention separates the construction of the silo wall 1 and the construction of the buttress column. The silo wall 1 construction is completed first. Since the shape of the inner wall surface of the silo wall 1 is regular, it is more convenient to use the slipform process for construction. Then, the buttress column is constructed on the solidified inner wall surface of the silo wall 1, so that the buttress column and the silo wall 1 form a whole. The specific steps are as follows:

[0042] S1. Vertical silo construction: The silo wall 1 of the vertical silo is formed by means of slipform construction.

[0043] S11. A plurality of vertical wall main reinforcements 3 and column main reinforcements 2 are arranged along the height direction of the warehouse wall 1 , wherein a plurality of internal column stirrups 4 are arranged on the column main reinforcements 2 along the height direction of the warehouse wall 1 .

[0044] The main wall reinforcement 3 and the main column reinforcement 2 are actually the same, and both play the role of force reinforcement. The difference is that the warehouse wall 1 corresponding to the position of the main column reinforcement 2 will form a buttress column later, and multiple main column reinforcements 2 correspond to one buttress column. The warehouse wall 1 includes multiple buttress columns. For the convenience of explanation, the present invention mainly describes the construction process of one buttress column, and the construction process of the other buttress columns is the same. It is easy to understand that during the construction process, for the convenience of explanation, the description of the main wall reinforcement 3 is omitted later.

[0045] The inner column stirrup 4 is formed by bending steel bars, and includes a transverse welding section 41, a longitudinal welding section 42 and a connecting section 43 in the same plane. Figure 1-3 As shown, the inner ends of the two longitudinal welding sections 42 are respectively connected to the ends of the transverse welding section 41 , the longitudinal welding section 42 and the transverse welding section 41 are in a vertical state, and the outer end of each longitudinal welding section 42 is connected to the connecting section 43 .

[0046] The inner column stirrups 4 are in a horizontal state and perpendicular to the column main reinforcement 2 . The transverse welding section 41 and the longitudinal welding section 42 of the inner column stirrups 4 are welded and fixed to the column main reinforcement 2 . The connecting section 43 is bent inward and parallel to the transverse welding section 41 .

[0047] The construction concept of the present invention is to first construct the warehouse wall 1, and then construct the buttresses on the inner wall surface of the warehouse wall 1, wherein the buttresses are constructed through the inner column stirrups 4, so that the buttresses and the warehouse wall 1 form a solid whole.

[0048] In some embodiments, the length of the connecting section 43 is greater than or equal to 10 times the diameter D of the connecting section 43 , that is, the length of the connecting section 43 is greater than or equal to 10D. It is easy to understand that the sum of the lengths of the two connecting sections 43 is less than or equal to the length of the transverse welding section 41 .

[0049] S12, assemble the slipform platform, place the wall main reinforcement 3 and column main reinforcement 2 in the slipform platform, and pour concrete to cover all the wall main reinforcement 3, column main reinforcement 2 and inner column stirrups 4. Figure 1 shown.

[0050] It should be noted that in step S11, the connection section 43 is bent inwardly, and when pouring concrete, the inner column stirrups 4 are completely buried in the concrete and will not hinder the subsequent sliding operation of the slipform platform.

[0051] S13, the sliding formwork platform is continuously slid up, and each time the formwork is lifted, the exposed wall surface is smoothed with concrete slurry until the sliding formwork platform is slid up to the highest point and separated from the silo wall 1, thereby obtaining the silo wall 1 of the vertical silo. Figure 2 shown.

[0052] In step S13, the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in step S12.

[0053] During the lifting process, when it slides up to the height where the inner column stirrup 4 is located, the connecting section 43 is chiseled out and rotated outward to be exposed on the inner wall surface of the warehouse wall 1, and then the inner wall surface where the connecting section 43 is located is roughened.

[0054] When the connecting section 43 is rotated outward, preferably, the connecting section 43 and the longitudinal welding section 42 on the same side are in the same straight line.

[0055] It is easy to understand that when sliding up to the height where the inner column stirrups 4 are located, the concrete at this position has not yet completely solidified, and the connecting section 43 buried therein can be chiseled open to expose it, and then the connecting section 43 can be bent outward to protrude from the inner wall surface, serving as the construction base point for the subsequent formation of the buttress column.

[0056] The inner wall surface where the connecting section 43 is located is roughened to increase the roughness of the inner wall surface at this location and increase the contact area between the buttress column and the warehouse wall 1.

[0057] S2, buttress column construction; connected with the inner column stirrup 4, and formed into buttress column through slip formwork construction.

[0058] S21, straighten the connection section 43 that is bent and exposed on the surface of the warehouse wall 1, and weld the tie bar 5 perpendicular to the surface of the warehouse wall 1 where the connection section 43 is located along the length direction of the connection section 43.

[0059] It is easy to understand that in order to facilitate the embedding of the connection section 43 of the inner column stirrup 4 in the concrete in step S1, the connection section 43 is not suitable to be too long. In step S2, the connection section 43 is the basis for the construction of the buttress column, and the connection section 43 needs to be extended. The tie bar 5 is welded to the connection section 43, which plays a role in extending the length of the connection section 43.

[0060] Preferably, the end of the tie bar 5 away from the inner wall surface is bent into a hook shape.

[0061] S22, an outer column stirrup 6 is arranged outside the inner column stirrup 4, and the outer column stirrup 6 is welded and fixed to the connecting sections 43 on both sides of the same inner column stirrup 4 and the tie bars 5. Figure 3 shown.

[0062] The outer column stirrups 6 are also formed by bending steel bars, and include a transverse section 61 and a longitudinal section 62 in the same plane. The ends of the two longitudinal sections 62 are respectively connected to the two ends of the transverse section 61. The longitudinal section 62 is perpendicular to the transverse section 61. The longitudinal section 62 is welded and fixed to the connecting section 43 and the tie bar 5 on the same side.

[0063] The outer column stirrups 6 are the key structure for the construction of the buttress column, providing structural strength for the buttress column. Moreover, the connection between the outer column stirrups 6 and the inner column stirrups 4 is used to realize the connection between the buttress column and the warehouse wall 1. The structural strength of the buttress column can reach the structural strength of the buttress column formed by conventional construction technology.

[0064] It is easy to understand that the transverse section 61 of the outer column stirrup 6 is the same or similar in length to the transverse welding section 41 of the inner column stirrup 4 , which is conducive to the welding and fixation of the longitudinal section 62 of the outer column stirrup 6 and the connecting section 43 of the inner column stirrup 4 .

[0065] S23, side steel formwork 7 and outer steel formwork 8 are arranged along the height direction of the buttress column, wherein the forming space of the buttress column is formed between the two side steel formworks 7, one outer steel formwork 8 and the warehouse wall 1, the connection between the side steel formworks 7 and the outer steel formworks 8 is welded and fixed, the outer column stirrups 6 corresponding to the buttress column are placed in the forming space from top to bottom, and concrete is poured into the forming space. Figure 4 shown.

[0066] In step S23, in order to enhance the connection strength between the side steel formwork 7 and the outer steel formwork 8, the two sides of the outer steel formwork 8 are respectively abutted against the side steel formwork 7 on the same side, and a plurality of first tensioning assemblies are arranged between the two side steel formworks 7. The first tensioning assemblies include a first screw 10, a side connector 9 and a first nut 11. The side connector 9 is arranged on the outer side of the side steel formwork 7. A plurality of first screws 10 all pass through the side connectors 9 of the two side steel formworks 7. The two ends of the first screw 10 are respectively connected to the two first nuts 11, so that the first screw 10 is locked with the two side steel formworks 7. Before pouring concrete, a plurality of first tensioning assemblies are installed between the two side steel formworks 7 along the height direction of the buttress column to limit the side steel formworks 7 from tipping outward.

[0067] In step S23, a second tensioning assembly is arranged on the outer side of the outer steel formwork 8, and the second tensioning assembly includes a second screw 13, an outer connecting piece 12, and a second nut 14. The length of the outer connecting piece 12 is greater than the distance between the outer sides of the two side steel formworks 7. The outer connecting piece 12 is arranged on the outer side of the outer steel formwork 8, and the second screw 13 is outside the side connecting piece 9. One end of the second screw 13 passes through the warehouse wall 1, and the other end of the second screw 13 passes through the end of the outer connecting piece 12. The two ends of the second screw 13 are respectively connected to the two second nuts 14 to fix the outer steel formwork 8 and the side steel formwork 7. As shown in the figure, the second tensioning assembly plays a role in limiting the outer steel formwork 8 from tipping outward. In addition, the second tensioning assembly also limits and fixes the side steel formwork 7. That is, the first tensioning assembly and the second tensioning assembly have a reinforcing effect on the outer steel formwork 8 and the side steel formwork 7.

[0068] In step S23, after the concrete of the silo wall 1 reaches a certain strength, a through hole matching with the second screw rod 13 is drilled.

[0069] S24, when the concrete in the forming space is solidified, the first tension assembly and the second tension assembly are removed, and the outer steel formwork 8 and the side steel formwork 7 are continuously slid up. Each time a formwork is lifted, the exposed wall surface of the buttress is smoothed with concrete slurry until the outer steel formwork 8 and the side steel formwork 7 slide to the highest point and are separated from the buttress, thereby obtaining the buttress of the vertical silo.

[0070] In step S24 , the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in steps S12 and S23 , that is, the concrete composition of the buttress column is the same as the concrete composition of the warehouse wall 1 .

[0071] S3, repeat step S2 to obtain a plurality of buttresses, and the plurality of buttresses and the silo wall 1 form a vertical silo.

[0072] The present invention improves the original integrated construction into split construction, decomposes the original irregular special-shaped structure into a cylindrical silo wall 1 and a columnar buttress column, and combines the slipform construction process to ensure the construction quality. The present invention cleverly pre-buries the inner column stirrups 4 and subsequently welds the outer column stirrups 6 to form the buttress column and the silo wall 1 into a continuous whole, and the overall structural strength of the silo is also guaranteed, solving the quality and safety problems faced by the existing special-shaped slipform sections.

[0073] The embodiments provided by the present invention are described in detail above. Specific examples are used herein to describe the principles and implementation methods of the present invention, and the description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vertical silo construction method based on column-wall separation, characterized in that: The steps include the construction of the warehouse wall (1) and the construction of the buttress column, and are as follows: S1. Vertical silo construction: forming the silo wall (1) of the vertical silo by means of slipform construction; S11. A plurality of vertical wall main reinforcements (3) and column main reinforcements (2) are arranged along the height direction of the warehouse wall (1), wherein a plurality of inner column stirrups (4) are arranged on the column main reinforcements (2) from bottom to top along the height of the warehouse wall (1), and the inner column stirrups (4) include a transverse welding section (41), a longitudinal welding section (42) and a connecting section (43) in the same plane, the inner ends of the two longitudinal welding sections (42) are respectively connected to the ends of the transverse welding section (41), the longitudinal welding sections (42) and the transverse welding sections (41) are in a vertical state, the outer end of each longitudinal welding section (42) is connected to the connecting section (43), the transverse welding section (41) and the longitudinal welding section (42) are both welded and fixed to the column main reinforcement (2), and the connecting section (43) is bent inward and parallel to the transverse welding section (41); S12, assembling the slipform platform, with the wall main reinforcement (3) and the column main reinforcement (2) in the slipform platform, pouring concrete to cover all the wall main reinforcement (3), the column main reinforcement (2) and the inner column stirrups (4); S13, the sliding formwork platform is continuously slid up, and each time the formwork is lifted, the exposed wall surface is smoothed and finished with concrete slurry, until the sliding formwork platform is slid up to the highest point and separated from the silo wall (1), thereby obtaining the silo wall (1) of the vertical silo; During the lifting process, when the sliding rises to the height where the inner column stirrup (4) is located, the connecting section (43) is chiseled out and rotated outwards to be exposed on the inner wall surface of the warehouse wall (1); S2, buttress column construction; connected with the inner column stirrup (4), and formed into buttress column by slipform construction; S21, straightening the connection section (43) that is bent and exposed on the surface of the warehouse wall (1), and welding the tie bar (5) perpendicular to the surface of the warehouse wall (1) where the connection section (43) is located along the length direction of the connection section (43); S22, an outer column stirrup (6) is arranged outside the inner column stirrup (4), the outer column stirrup (6) comprises a transverse section (61) and a longitudinal section (62) in the same plane, the ends of the two longitudinal sections (62) are respectively connected to the two ends in the transverse section (61), the longitudinal section (62) is perpendicular to the transverse section (61), and the longitudinal section (62) is welded and fixed to the connecting section (43) and the tie bar (5) on the same side; S23, side steel formworks (7) and outer steel formworks (8) are arranged along the height direction of the buttress column, wherein a forming space for the buttress column is formed between the two side steel formworks (7) and one outer steel formwork (8) and the warehouse wall (1), the connection between the side steel formworks (7) and the outer steel formworks (8) is welded and fixed, the outer column stirrups (6) corresponding to the buttress column are placed in the forming space from top to bottom, and concrete is poured into the forming space; S24, the concrete in the molding space is solidified, and the outer steel formwork (8) and the side steel formwork (7) are continuously slid up. Each time a formwork is lifted, the exposed wall surface of the buttress is smoothed with concrete slurry until the outer steel formwork (8) and the side steel formwork (7) are slid up to the highest point and separated from the buttress, thereby obtaining the buttress of the vertical silo; S3, repeat step S2 to obtain a plurality of buttresses, and the plurality of buttresses and the silo wall (1) form a vertical silo.

2. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S11, the length of the connecting section (43) is greater than or equal to 10 times the diameter of the connecting section (43).

3. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S13, the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in step S12.

4. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S13, after the connecting section (43) is exposed from the inner wall surface of the warehouse wall (1), the inner wall surface where the connecting section (43) is located is roughened.

5. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S21, the end of the tie bar (5) away from the inner wall surface is bent into a hook shape.

6. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S22, the transverse section (61) of the outer column stirrup (6) is the same length as the transverse welding section (41) of the inner column stirrup (4).

7. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S23, the two sides of the outer steel formwork (8) are respectively abutted against the side steel formwork (7) on the same side, and a plurality of first tensioning components are arranged between the two side steel formworks (7); The first tensioning assembly comprises a first screw rod (10), a side connecting piece (9) and a first nut (11); the side connecting piece (9) is arranged on the outer side surface of the side steel formwork (7); a plurality of the first screw rods (10) pass through the side connecting pieces (9) of the two side steel formworks (7); the two ends of the first screw rod (10) are respectively connected to the two first nuts (11) so that the first screw rod (10) is locked with the two side steel formworks (7); After the concrete in the forming space is solidified, the first tensioning assembly is removed.

8. The vertical silo construction method based on column-wall separation according to claim 7 is characterized in that: In step S23, a second tensioning assembly is arranged on the outer side surface of the outer steel formwork (8), and the second tensioning assembly comprises a second screw rod (13), an outer connecting piece (12) and a second nut (14). The length of the outer connecting piece (12) is greater than the distance between the outer sides of the two side steel formworks (7). The outer connecting piece (12) is arranged on the outer side surface of the outer steel formwork (8). The second screw rod (13) is outside the side connecting piece (9). One end of the second screw rod (13) passes through the warehouse wall (1), and the other end of the second screw rod (13) passes through the end of the outer connecting piece (12). The two ends of the second screw rod (13) are respectively connected to the two second nuts (14) to fix the outer steel formwork (8) and the side steel formwork (7). After the concrete in the forming space is solidified, the second tensioning assembly is removed.

9. The vertical silo construction method based on column-wall separation according to claim 8 is characterized in that: In step S23, after the concrete of the silo wall (1) reaches a certain strength, a through hole matching the second screw rod (13) is drilled.

10. The vertical silo construction method based on column-wall separation according to claim 1 is characterized in that: In step S24, the composition of the concrete slurry used for finishing treatment is the same as the composition of the concrete poured in steps S12 and S23.

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