Large-diameter shallow silo cone top bailey frame combined support system and construction method thereof

Abstract

The application discloses a large-diameter shallow circular silo cone top Bailey frame combined support system and a construction method thereof. The Bailey frame combined support system comprises a shallow circular silo body, a support column arranged at a central position in the shallow circular silo body, a mounting assembly fixedly arranged at the top of the support column, a Bailey frame arranged outside the mounting assembly and composed of linearly arranged Bailey frame truss units, a connecting structure arranged between the Bailey frame truss units and the shallow circular silo body, a fixing assembly, a reinforcing structure, and the like. The application can realize quick and stable connection of two groups of Bailey frame truss units without relying on traditional safety clamps, and can automatically guide a tower crane standard section to be accurately centered.

Description

Technical Field

[0001] This invention relates to the field of Bailey bridge support technology, and in particular to a combined support system for a large-diameter shallow circular silo with a conical top Bailey bridge and its construction method. Background Technology

[0002] In the construction of large grain storage facilities, cement silos, and other similar large-diameter shallow circular silos, the construction of the silo roof structure has always been a technical challenge, especially for large-diameter shallow circular silos, whose roofs typically employ a conical structure. This structure places extremely high demands on the stability and load-bearing capacity of the support system during construction. Bailey bridges, as a standard component that is flexible to assemble, has high load-bearing capacity, and is highly reusable, are increasingly being applied to the construction of large-diameter shallow circular silo roofs.

[0003] Existing Bailey bridge support systems typically rely on pins and safety clips to connect two sets of Bailey bridge truss units. This connection method is not only cumbersome to install but also inefficient. Furthermore, the central columns used in existing technologies often employ standard section designs. These standard sections are difficult to align automatically during installation, requiring repeated manual adjustments. This not only increases the difficulty of construction but also affects overall construction efficiency and accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a combined support system for a large-diameter shallow circular silo with a conical top Bailey bridge and its construction method, which can solve the technical problems mentioned in the background: First, when connecting two sets of Bailey bridge truss units, the Bailey bridge support system usually relies on pins and safety clips for connection, which is cumbersome and has low construction efficiency; Second, the central columns used in the prior art mostly adopt a standard section design, which is difficult to automatically align during installation and requires repeated manual adjustments.

[0005] To achieve the above objectives, the present invention provides a large-diameter shallow circular silo cone-top Bailey bridge combined support system, comprising: a shallow circular silo body; a support column, the support column being disposed at the center of the shallow circular silo body; an installation assembly, the installation assembly being fixedly disposed on the top of the support column, and a Bailey bridge being installed on the outside of the installation assembly, the Bailey bridge being composed of Bailey bridge truss units arranged in a straight line; a connecting structure, the connecting structure being installed between the Bailey bridge truss units and the shallow circular silo body; and a fixing assembly, the outside of the installation assembly and one side of the Bailey bridge truss unit being fixedly provided with male heads, and the other side of the Bailey bridge truss unit and the outside of the connecting structure being fixedly provided with female heads. Both the male and female heads have pin holes inside, and a fixing component is installed between the male and female heads; the reinforcement structure is fixedly installed on the top of the Bailey bridge; the main body of the shallow circular silo has auxiliary holes reserved inside the top side, and the auxiliary holes are arranged in a ring array; the support column includes: a support base, a tower crane standard section and a guide rod. The support base is fixedly installed inside the main body of the shallow circular silo, the tower crane standard section is fixedly installed on the top of the support base by high-strength bolts, and the tower crane standard section is arranged in a straight line. A steel wire rope is pulled between the tower crane standard section and the main body wall of the shallow circular silo, and the guide rod is fixedly installed on the top outer side of the tower crane standard section by bolts.

[0006] In a preferred embodiment, the installation assembly includes: H-beams and box girders. The H-beams are fixed to the top of the top standard section of the tower crane by high-strength bolts, and the H-beams are arranged in a cross pattern. The box girders are welded to the top of the H-beams, and two sets of box girders are arranged symmetrically. The box girders are configured as a semi-circular ring structure, and the two sets of box girders are fixedly connected by flanges. The top of the box girders is fixedly arranged with male heads in a ring array.

[0007] In a preferred embodiment, the installation assembly further includes: a fixed vertical rod and a fixed ring frame. The fixed vertical rod is fixedly installed on the top of the box girder and is arranged in a circular array. The fixed ring frame is fixedly installed on the top of the fixed vertical rod and has male heads arranged in a circular array on the outside of the fixed ring frame. The Bailey truss unit is fixed between the fixed ring frame and the box girder through the male and female heads and the fixing assembly, and the Bailey truss is arranged in a circular array.

[0008] In a preferred embodiment, the connection structure includes: a connecting frame and a connecting seat; a female end is fixedly provided on the outside of the connecting frame, and the connecting frame is fixedly provided on the outside of the Bailey truss unit through the male end, the female end and the fixing components, and the connecting frame is triangular; the connecting seat is fixedly provided on the top outside of the connecting frame, and the connecting seat is movably provided inside the auxiliary hole.

[0009] In a preferred embodiment, the connecting structure further includes: a lead screw, a drive block, a connecting block, a lifting block, a top plate, and an anti-slip pad. The lead screw is rotatably disposed inside one side of the connecting seat. The drive block is vertically slidably disposed inside the connecting seat via a dovetail groove, and is also connected to the outside of the lead screw via a threaded connection. One side of the drive block is configured as a beveled structure. The connecting block is horizontally slidably disposed inside the connecting seat via a dovetail groove, and is configured as an isosceles triangle. One side of the connecting block's beveled edge is in contact with one side of the drive block's beveled edge. The lifting block is vertically slidably disposed inside the connecting seat via a dovetail groove, and one side of the top of the lifting block is configured as a beveled edge. The bottom beveled edge of the lifting block is in contact with the other side of the connecting block's beveled edge. The top plate is fixedly disposed on the top of the lifting block, and the anti-slip pad is fixedly disposed on the top of the top plate. The top of the anti-slip pad is in contact with the top of the inner side of the auxiliary hole.

[0010] In a preferred embodiment, the fixing component includes: a pin, a baffle, a pull ring, an auxiliary seat, and a limiting plate. The pin is movably disposed between the pin holes inside the male head and the female head. The baffle is fixedly disposed at one end of the pin, and the outer side of the baffle is in contact with the outer side of the female head. The pull ring is rotatably disposed on the outer side of the baffle. The auxiliary seat is fixedly disposed at the other end of the pin. The limiting plate is fixedly disposed on the top of the auxiliary seat.

[0011] In a preferred embodiment, the fixing component further includes: a connecting shaft, a locking post, and a limiting groove; the connecting shaft is rotatably disposed inside the auxiliary seat, and a torsion spring is disposed between the outer side of the connecting shaft and the inside of the auxiliary seat; the locking post is fixedly disposed on the outer side of the connecting shaft, and the initial position of the locking post is perpendicular to the pin; the limiting groove is opened on one side of the locking post, and a limiting plate is movably disposed inside the limiting groove.

[0012] In a preferred embodiment, the reinforcement structure includes: a channel steel and U-bolts, wherein the channel steel is disposed at the top of the Bailey bridge truss unit and is arranged in a ring, and the U-bolts are fixedly disposed between the channel steel and the top of the Bailey bridge truss unit.

[0013] In a preferred embodiment, the guide rods are arranged symmetrically and at an angle, and four sets of guide rods are fixedly installed on a set of tower crane standard sections.

[0014] The present invention also provides a construction method for the above-mentioned large-diameter shallow circular silo cone-top Bailey bridge combined support system, comprising the following steps: Determine a suitable location inside the main body of the shallow circular silo and fix the support base there. The guide rod is fixed to the outer top of the standard tower crane section, and the guide rod is symmetrical and inclined. The standard tower crane sections are fixed sequentially to the top of the support base, so that the standard tower crane sections are arranged in a straight line. At the same time, steel wire ropes are strung between the standard tower crane sections and the main cylinder wall of the shallow circular silo. The Bailey truss units are spliced ​​together by connecting the male and female ends, thus completing the splicing of the Bailey truss units; The assembled Bailey truss units are fixed between the fixed ring frame and the box girder using the male and female ends and fixing components, so that the Bailey frames are arranged in a ring array to form a complete Bailey frame structure. The connecting frame and Bailey truss unit of the connecting structure are fixedly connected to the main cylindrical wall of the shallow circular silo. A reinforcement structure is fixed at the top of the Bailey bridge.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting the initial position of the locking post perpendicular to the pin post, can fix the pin post when it is inserted between the male and female ends, preventing the pin post from slipping out of the male and female ends. This enables rapid connection between Bailey truss units without relying on traditional safety clips, significantly simplifying the installation process and improving construction efficiency.

[0016] 2. This invention, by setting symmetrical guide rods at the top of the tower crane standard section, enables the tower crane standard section to automatically center itself through the guide rods during assembly, reducing the need for manual adjustment and improving assembly efficiency and accuracy.

[0017] 3. This invention, by employing a circular array of Bailey bridges and combining channel steel and U-bolts in the reinforcement structure, can prevent displacement caused by stress deformation in the middle of the Bailey bridge truss units, ensuring the lateral stability of the Bailey bridges and effectively enhancing the overall stability and load-bearing capacity of the silo roof structure. This design can evenly distribute the load, avoid local stress concentration, and ensure the stability and reliability of the silo roof structure during the construction of large-diameter shallow circular silos.

[0018] 4. Compared to traditional full-span scaffolding or cantilever scaffolding, this support system, through precise calculation and optimized design, reduces unnecessary scaffolding material usage, thereby effectively controlling construction costs. Simultaneously, the modular and standardized component design facilitates material reuse and turnover, further reducing project costs.

[0019] 5. This invention, by incorporating a lead screw and a connecting seat, allows the driving block to move downwards within the connecting seat. The driving block, through its own inclined side and some inclined sides of the connecting block, drives the connecting block to move horizontally. The connecting block, through its inclined sides, drives the lifting block and the top plate to move upwards. The connecting seat, via an anti-slip pad, is fixed to the top plate inside the auxiliary hole, thereby securing the connecting frame and the Bailey truss unit to the main wall of the shallow circular silo. Compared to the commonly used method of clamping timber, this connection method is not only more convenient to operate but also significantly improves connection stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0021] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a cross-sectional structural diagram of the shallow circular hopper body of the present invention.

[0024] Figure 3 This is a schematic diagram of the supporting column of the present invention.

[0025] Figure 4 This is a structural schematic diagram of the tower crane standard section and guide rod of the present invention.

[0026] Figure 5 This is a schematic diagram of the disassembled structure of the box girder of the present invention.

[0027] Figure 6 This is a top view of the Bailey bridge structure of the present invention.

[0028] Figure 7 This is a schematic diagram of the Bailey truss unit and connection structure of the present invention.

[0029] Figure 8 This is a structural schematic diagram of the Bailey truss unit of the present invention.

[0030] Figure 9 This is a schematic diagram of the disassembled structure of the fixing component of the present invention.

[0031] Figure 10 This is a schematic diagram of the connection structure of the present invention.

[0032] Figure 11 This is a schematic diagram of the internal structure of the connector of the present invention.

[0033] Figure 12 This is the invention Figure 1 A magnified structural diagram at point A.

[0034] Figure 13 This is the invention Figure 1 A magnified structural diagram at point B.

[0035] Explanation of reference numerals in the attached figures: 1. Shallow circular silo main body; 101. Auxiliary hole; 2. Support column; 201. Support base; 202. Tower crane standard section; 203. Guide rod; 3. Installation components; 301. H-beam; 302. Box girder; 303. Fixed vertical rod; 304. Fixed ring frame; 4. Bailey truss unit; 5. Connection structure; 501. Connecting frame; 502. Connecting seat; 503. Screw; 504. Drive block; 505. Connecting block; 506. Lifting block; 507. Top plate; 508. Anti-slip pad; 6. Fixing components; 601. Pin; 602. Baffle; 603. Pull ring; 604. Auxiliary seat; 605. Limiting plate; 606. Connecting shaft; 607. Locking column; 608. Limiting groove; 7. Reinforcing structure; 701. Channel steel; 702. U-bolt; 8. Male head; 9. Female head. Detailed Implementation

[0036] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts. Example

[0037] like Figures 1 to 13 As shown, the large-diameter shallow circular silo cone-top Bailey bridge combined support system provided by the present invention includes a shallow circular silo body 1, a support column 2 is provided at the center of the shallow circular silo body 1, and an installation component 3 is fixedly provided at the top of the support column 2. A Bailey bridge is installed on the outside of the installation component 3, and the Bailey bridge is composed of Bailey bridge truss units 4 arranged in a straight line. A connecting structure 5 is installed between the Bailey bridge truss units 4 and the shallow circular silo body 1. A male head 8 is fixedly provided on the outside of the installation component 3 and on one side of the Bailey bridge truss unit 4, and a female head 9 is fixedly provided on the other side of the Bailey bridge truss unit 4 and on the outside of the connecting structure 5. Pin holes are opened inside the male head 8 and the female head 9, and a fixing component 6 is provided between the male head 8 and the female head 9. A reinforcing structure 7 is provided at the top of the Bailey bridge.

[0038] In this embodiment, auxiliary holes 101 are pre-drilled inside the top side of the shallow circular silo body 1, and the auxiliary holes 101 are arranged in a circular array. The support column 2 includes: a support base 201, a tower crane standard section 202, and guide rods 203. The support base 201 is fixedly installed inside the shallow circular silo body 1. The tower crane standard section 202 is fixedly installed on the top of the support base 201 by high-strength bolts, and the tower crane standard section 202 is arranged in a straight line. A steel wire rope is pulled between the tower crane standard section 202 and the cylinder wall of the shallow circular silo body 1. The guide rods 203 are fixedly installed on the top outer side of the tower crane standard section 202 by bolts. The guide rods 203 are arranged symmetrically and inclined. Four sets of guide rods 203 are fixedly installed on one set of tower crane standard sections 202.

[0039] The installation component 3 includes: H-beams 301, box girders 302, fixed vertical rods 303, and fixed ring frames 304. The H-beams 301 are fixed to the top of the top standard tower crane section 202 using high-strength bolts, and are arranged in a crisscross pattern. The box girders 302 are welded to the top of the H-beams 301, and two sets of box girders 302 are arranged symmetrically. The box girders 302 are designed as semi-circular ring structures, and the two sets of box girders 302 are fixedly connected by flanges. The tops of the box girders 302 are fixedly arranged in a ring array with male heads 8. The fixed vertical rods 303 are fixedly installed on the tops of the box girders 302, and are arranged in a ring array. The fixed ring frames 304 are fixedly installed on the tops of the fixed vertical rods 303, and the outer sides of the fixed ring frames 304 are fixedly arranged in a ring array with male heads 8. The Bailey truss unit 4 is fixed between the fixed ring frame 304 and the box girder 302 by the male end 8, the female end 9 and the fixing component 6, and the Bailey frame is arranged in a ring array.

[0040] The reinforcing structure 7 includes channel steel 701 and U-bolts 702. Channel steel 701 is positioned at the top of the Bailey bridge truss unit 4 in a ring-shaped arrangement. U-bolts 702 are fixed between channel steel 701 and the top of the Bailey bridge truss unit 4. Wooden formwork and fall protection netting are laid on the channel steel 701. By employing a ring-shaped array of Bailey bridges, combined with channel steel 701 and U-bolts 702 in the reinforcing structure 7, displacement due to stress deformation in the middle of the Bailey bridge truss unit 4 can be prevented, ensuring the lateral stability of the Bailey bridge and effectively enhancing the overall stability and load-bearing capacity of the silo roof structure. Example

[0041] like Figure 7 , Figure 10 and Figure 11As shown, based on Embodiment 1, the connecting structure 5 includes: a connecting frame 501, a connecting seat 502, a lead screw 503, a driving block 504, a connecting block 505, a lifting block 506, a top plate 507, and an anti-slip pad 508. A female head 9 is fixedly installed on the outer side of the connecting frame 501, and the connecting frame 501 is fixedly installed on the outer side of the Bailey truss unit 4 via a male head 8, a female head 9, and a fixing assembly 6. The connecting frame 501 is triangular in shape. The connecting seat 502 is fixedly installed on the top outer side of the connecting frame 501, and the connecting seat 502 is movably installed inside the auxiliary hole 101. The lead screw 503 is rotatably installed inside one side of the connecting seat 502. The driving block 504 is vertically slidably installed inside the connecting seat 502 via a dovetail groove, and the driving block 504 is threadedly connected to the outer side of the lead screw 503. One side of the driving block 504 is a beveled structure. The connecting block 505 slides laterally inside the connecting seat 502 via a dovetail groove, and the connecting block 505 is configured as an isosceles triangle, with one hypotenuse of the connecting block 505 abutting against one hypotenuse of the driving block 504. The lifting block 506 slides vertically inside the connecting seat 502 via a dovetail groove, with one side of the top of the lifting block 506 configured as a hypotenuse, and the bottom hypotenuse of the lifting block 506 abutting against the other hypotenuse of the connecting block 505. The top plate 507 is fixedly mounted on the top of the lifting block 506, and the anti-slip pad 508 is fixedly mounted on the top of the top plate 507, with the top of the anti-slip pad 508 abutting against the top of the inner side of the auxiliary hole 101. By setting a lead screw 503 and a connecting seat 502, the drive block 504 can move downward inside the connecting seat 502, so that the drive block 504 drives the connecting block 505 to move horizontally through its own inclined side and some inclined sides of the connecting block 505; so that the connecting block 505 drives the lifting block 506 and the top plate 507 to move upward through its inclined side; so that the connecting seat 502 is fixed inside the auxiliary hole 101 through the anti-slip pad 508 and the top plate 507, thereby making the connecting frame 501 and the Bailey truss unit 4 fixedly connected to the wall of the shallow circular silo body 1. Example

[0042] like Figure 9 and Figure 13As shown, based on Embodiments 1 and 2, the fixing component 6 includes: a pin 601, a baffle 602, a pull ring 603, an auxiliary seat 604, a limiting plate 605, a connecting shaft 606, a locking pin 607, and a limiting groove 608. The pin 601 is movably disposed between the pin holes inside the male head 8 and the female head 9. The baffle 602 is fixedly disposed at one end of the pin 601, and the outer side of the baffle 602 is in contact with the outer side of the female head 9. The pull ring 603 is rotatably disposed on the outer side of the baffle 602. The auxiliary seat 604 is fixedly disposed at the other end of the pin 601. The limiting plate 605 is fixedly disposed at the top of the auxiliary seat 604. The connecting shaft 606 is rotatably disposed inside the auxiliary seat 604, and a torsion spring is disposed between the outer side of the connecting shaft 606 and the inside of the auxiliary seat 604. The locking pin 607 is fixedly disposed on the outer side of the connecting shaft 606, and the initial position of the locking pin 607 is perpendicular to the pin 601. A limiting groove 608 is formed on one side of the locking post 607, and a limiting plate 605 is movably installed inside the limiting groove 608. By setting the initial position of the locking post 607 perpendicular to the pin 601, the pin 601 can be fixed by the locking post 607 when it is inserted between the male head 8 and the female head 9, preventing the pin 601 from sliding out of the male head 8 and the female head 9, thus realizing the rapid connection between the Bailey truss units 4. Example

[0043] The construction method of the large-diameter shallow circular silo cone-top Bailey bridge combined support system of the present invention includes the following steps: Determine a suitable position inside the shallow circular silo body 1 and securely fix the support base 201. The guide rods 203 are fixed to the top outer side of the tower crane standard section 202 by bolts. The guide rods 203 are symmetrical and inclined. Four sets of guide rods 203 are fixed on one set of tower crane standard sections 202 to provide guidance and positioning for the subsequent installation of the installation components 3. High-strength bolts are used to fix the tower crane standard section 202 to the top of the support base 201 in sequence to ensure that the tower crane standard section 202 is arranged in a straight line. At the same time, steel wire ropes are strung between the tower crane standard section 202 and the wall of the shallow circular silo body 1 to enhance the stability of the tower crane standard section 202 and prevent it from swaying. H-beams 301 are fixed to the top of the top tower crane standard section 202 with high-strength bolts. The H-beams 301 are arranged in a cross pattern to enhance the stability of the structure. Box beams 302 are welded to the top of the H-beams 301. Two sets of symmetrical semi-circular box beams 302 are set and fixedly connected by flanges. Male heads 8 are fixedly arranged in a ring array on the top of the box beams 302. Fixed vertical rods 303 are fixedly arranged in a ring array on the top of the box beams 302. Then, fixed ring frames 304 are fixed to the top of the fixed vertical rods 303. Male heads 8 are fixedly arranged in a ring array on the outside of the fixed ring frames 304. The Bailey truss unit 4 is spliced ​​together via the male end 8 and the female end 9: the locking post 607 is straightened by the limiting groove 608 and the limiting plate 605, and then the pin 601 is inserted into the pin hole inside the male end 8 and the female end 9, so that the outer side of the baffle 602 fits against the outer side of the female end 9, and the pull ring 603 is rotated to assist the operation; at this time, under the action of the torsion spring, the connecting shaft 606 drives the locking post 607 to return to the initial position so that the locking post 607 and the pin 601 are set perpendicularly to prevent the pin 601 from loosening, and the splicing of the Bailey truss unit 4 is completed; The assembled Bailey truss unit 4 is fixed between the fixed ring frame 304 and the box girder 302 through the male end 8, the female end 9 and the fixing component 6, so that the Bailey frame is arranged in a ring array to form a complete Bailey frame structure. The connecting frame 501 is fixedly connected to the Bailey truss unit 4 and the wall of the shallow circular silo body 1: a female head 9 is fixedly installed on the outside of the connecting frame 501, and the connecting frame 501 is fixed on the outside of the Bailey truss unit 4 through the male head 8, the female head 9 and the fixing component 6. The connecting frame 501 is set as a triangle to enhance the connection stability; and the connecting seat 502 is slidably placed inside the auxiliary hole 101; then the lead screw 503 is rotated. Since the drive block 504 is set on the outside of the lead screw 503 through a threaded connection and is vertically slidably set inside the connecting seat 502 through a dovetail groove, the drive block 504 will move downward. The inclined structure on one side of the drive block 504 fits into the inclined side of the connecting block 505, causing the connecting block 505 to slide laterally through the dovetail groove; the inclined side of the other side of the connecting block 505 fits into the bottom inclined side of the lifting block 506, pushing the lifting block 506 to slide vertically upward through the dovetail groove; the lifting block 506 causes the top plate 507 to rise, so that the top of the anti-slip pad 508 fixed on the top of the top of the top of the top of the auxiliary hole 101 fits into the top of the inner side of the auxiliary hole 101, and the connecting seat 502 is firmly fixed inside the auxiliary hole 101, thereby making the connecting frame 501 and the Bailey truss unit 4 fixedly connected to the wall of the shallow circular silo body 1. A reinforcement structure is fixed at the top of the Bailey bridge: a channel steel 701 is set at the top of the Bailey bridge truss unit 4, so that the channel steel 701 is arranged in a ring. U-bolts 702 are used to fix the channel steel 701 to the top of the Bailey bridge truss unit 4 to enhance the overall rigidity and stability of the Bailey bridge. Wooden formwork and fall protection nets are laid on top of the channel steel 701. After completing the above steps, the Bailey bridge support system for the cone top of the large-diameter shallow circular silo is installed and ready for use, providing reliable support for the construction of the cone top of the shallow circular silo.

Claims

1. A combined support system for a large-diameter shallow circular silo with a conical top Bailey bridge, characterized in that, include: Shallow round silo main body (1); Support column (2), the support column (2) is located at the center of the shallow circular silo body (1); The mounting component (3) is fixedly installed on the top of the support column (2). A Bailey bridge is installed on the outside of the mounting component (3), and the Bailey bridge is composed of Bailey bridge truss units (4) arranged in a straight line. A connecting structure (5) is installed between the Bailey truss unit (4) and the shallow circular silo body (1); The fixing component (6) has male heads (8) fixedly installed on the outer side of the mounting component (3) and one side of the Bailey truss unit (4), and female heads (9) fixedly installed on the other side of the Bailey truss unit (4) and the outer side of the connecting structure (5). Both the male head (8) and the female head (9) have pin holes, and the fixing component (6) is disposed between the male head (8) and the female head (9). A reinforcing structure (7) is fixedly installed on the top of the Bailey bridge; The shallow circular silo body (1) has an auxiliary hole (101) pre-reserved inside the top side, and the auxiliary hole (101) is arranged in a ring array. The support column (2) includes a support base (201), a tower crane standard section (202) and a guide rod (203). The support base (201) is fixedly installed inside the shallow circular silo body (1). The tower crane standard section (202) is fixedly installed on the top of the support base (201) by high-strength bolts. The tower crane standard section (202) is arranged in a straight line. A steel wire rope is pulled between the tower crane standard section (202) and the cylinder wall of the shallow circular silo body (1). The guide rod (203) is fixedly installed on the outer side of the top of the tower crane standard section (202) by bolts.

2. The combined support system of large-diameter shallow circular silo cone-top Bailey bridge according to claim 1, characterized in that: The installation assembly (3) includes: H-beams (301) and box girders (302). The H-beams (301) are fixed to the top of the top tower crane standard section (202) by high-strength bolts, and the H-beams (301) are arranged in a cross pattern. The box girders (302) are welded to the top of the H-beams (301), and two sets of box girders (302) are arranged symmetrically. The box girders (302) are set as a semi-circular ring structure, and the two sets of box girders (302) are fixedly connected by flanges. The top of the box girders (302) is fixedly arranged with male heads (8) in a ring array.

3. The combined support system of Bailey bridge with cone top for large-diameter shallow circular silos according to claim 2, characterized in that: The installation assembly (3) further includes: a fixed vertical rod (303) and a fixed ring frame (304). The fixed vertical rod (303) is fixedly installed on the top of the box girder (302) and the fixed vertical rod (303) is arranged in a ring array. The fixed ring frame (304) is fixedly installed on the top of the fixed vertical rod (303) and the male head (8) is fixedly installed in a ring array on the outside of the fixed ring frame (304). The Bailey truss unit (4) is fixedly installed between the fixed ring frame (304) and the box girder (302) through the male head (8), the female head (9) and the fixing assembly (6), and the Bailey frame is arranged in a ring array.

4. The combined support system of large-diameter shallow circular silo cone-top Bailey bridge according to claim 1, characterized in that: The connection structure (5) includes: a connecting frame (501) and a connecting seat (502); a female head (9) is fixedly provided on the outside of the connecting frame (501), and the connecting frame (501) is fixedly provided on the outside of the Bailey truss unit (4) through the male head (8), the female head (9) and the fixing component (6), and the connecting frame (501) is set as a triangle; the connecting seat (502) is fixedly provided on the top outside of the connecting frame (501), and the connecting seat (502) is movably provided inside the auxiliary hole (101).

5. The large-diameter shallow circular silo cone-top Bailey bridge combined support system according to claim 4, characterized in that: The connecting structure (5) further includes: a lead screw (503), a drive block (504), a connecting block (505), a lifting block (506), a top plate (507), and an anti-slip pad (508). The lead screw (503) is rotatably disposed inside one side of the connecting seat (502); the drive block (504) is vertically slidably disposed inside the connecting seat (502) through a dovetail groove, and the drive block (504) is disposed outside the lead screw (503) through a threaded connection, and one side of the drive block (504) is set as an inclined structure; the connecting block (505) is horizontally slidably disposed inside the connecting seat (502) through a dovetail groove, and the connecting block (506) is threadedly disposed outside the lead screw (503). 505) is set as an isosceles triangle structure, and the hypotenuse of one side of the connecting block (505) is in contact with the hypotenuse of one side of the driving block (504). The lifting block (506) is vertically slidably set inside the connecting seat (502) through the dovetail groove. The top side of the lifting block (506) is set as a hypotenuse structure, and the bottom hypotenuse of the lifting block (506) is in contact with the hypotenuse of the other side of the connecting block (505). The top plate (507) is fixedly set on the top of the lifting block (506), and the anti-slip pad (508) is fixedly set on the top of the top plate (507). The top of the anti-slip pad (508) is in contact with the top of the inner side of the auxiliary hole (101).

6. The combined support system of Bailey bridge with cone top for large-diameter shallow circular silos according to claim 1, characterized in that: The fixing component (6) includes: a pin (601), a baffle (602), a pull ring (603), an auxiliary seat (604), and a limiting plate (605). The pin (601) is movably disposed between the pin holes inside the male head (8) and the female head (9). The baffle (602) is fixedly disposed at one end of the pin (601), and the outer side of the baffle (602) is in contact with the outer side of the female head (9). The pull ring (603) is rotatably disposed on the outer side of the baffle (602). The auxiliary seat (604) is fixedly disposed at the other end of the pin (601). The limiting plate (605) is fixedly disposed on the top of the auxiliary seat (604).

7. The combined support system of Bailey bridge with cone top for large-diameter shallow circular silos according to claim 6, characterized in that: The fixing component (6) further includes: a connecting shaft (606), a locking post (607), and a limiting groove (608); the connecting shaft (606) is rotatably disposed inside the auxiliary seat (604), and a torsion spring is provided between the outer side of the connecting shaft (606) and the inside of the auxiliary seat (604); the locking post (607) is fixedly disposed outside the connecting shaft (606), and the initial position of the locking post (607) is perpendicular to the pin (601); the limiting groove (608) is opened on one side of the locking post (607), and a limiting plate (605) is movably disposed inside the limiting groove (608).

8. The combined support system of Bailey bridge with cone top for large-diameter shallow circular silos according to claim 1, characterized in that: The reinforcement structure (7) includes: channel steel (701) and U-bolt (702). The channel steel (701) is set on the top of the Bailey truss unit (4) and the channel steel (701) is arranged in a ring. The U-bolt (702) is fixedly set between the channel steel (701) and the top of the Bailey truss unit (4).

9. The combined support system of large-diameter shallow circular silo cone-top Bailey bridge according to claim 1, characterized in that: The guide rods (203) are arranged symmetrically and inclined, and four sets of guide rods (203) are fixedly installed on a set of tower crane standard sections (202).

10. A construction method for a combined support system of a large-diameter shallow circular silo with a conical top Bailey bridge as described in any one of claims 1-9, characterized in that: Includes the following steps: Determine a suitable location inside the main body of the shallow circular silo and fix the support base there. The guide rod is fixed to the outer top of the standard tower crane section, and the guide rod is symmetrical and inclined. The standard tower crane sections are fixed sequentially to the top of the support base, so that the standard tower crane sections are arranged in a straight line. At the same time, steel wire ropes are strung between the standard tower crane sections and the main cylinder wall of the shallow circular silo. The Bailey truss units are spliced ​​together by connecting the male and female ends, thus completing the splicing of the Bailey truss units; The assembled Bailey truss units are fixed between the fixed ring frame and the box girder using the male and female ends and fixing components, so that the Bailey frames are arranged in a ring array to form a complete Bailey frame structure. The connecting frame and Bailey truss unit of the connecting structure are fixedly connected to the main cylindrical wall of the shallow circular silo. A reinforcement structure is fixed at the top of the Bailey bridge.

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