Silo top supporting device with monitoring system and construction method

Abstract

The invention discloses a silo top supporting device with a monitoring system and a construction method.The device comprises a supporting base, a center stand column, a first connecting disc, a second connecting disc, a bailey beam, a bracket, a wind cable, a connecting lug plate and a turn buckle, and the top of the center stand column is connected with the first connecting disc and the second connecting disc; the first connecting disc is connected with an upper chord of the bailey beam through a turn buckle, the second connecting disc is connected with a lower chord of the bailey beam through a connecting lug plate, and the lower chord, close to one end of the silo wall, of the bailey beam is connected with the silo wall through a bracket. The problems that a silo top structure supporting device is large in deformation and poor in stability are solved, embedded steel bars and embedded bolts are arranged in the silo wall, the problem that an existing silo inner wall and Bailey beams are difficult to dismantle and block is solved, the monitoring system is arranged to monitor the states of all parts of the supporting device in real time, and the stability of the supporting device is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and more specifically, relates to a silo top supporting device with a monitoring system and a construction method. Background Art

[0002] Shallow silos have large storage capacity per silo due to their small footprint, high degree of mechanization and relatively low investment, and have gradually become one of the main types of silos for grain storage in my country. However, grain storage has high requirements for the air tightness, waterproofness and moisture resistance of the silo body, and the main body of shallow silos is mostly reinforced concrete structure. In the early days, the silo roof construction generally adopted a full-height support system with floor-standing steel pipe fasteners, which had a long construction period, large demand for manpower, materials and machines, and high safety risks. With the gradual development of construction technology, the support system of the silo roof has developed from the traditional full-height support system to the working platform built by the high-altitude support frame load-bearing system. The existing high-altitude support frame template support system generally adopts the Bailey frame + center support mode. One end of the Bailey frame is hung on the center support, and the other end is fixed in the reserved groove on the inner wall of the silo structure. The built support system has no effective fixing measures, poor overall stability, and it is difficult to dismantle and seal the connection between the silo wall, which is difficult to construct and increases the safety risk of operators working at high altitudes.

[0003] The application number is: CN202310071549.9, and the name is: Invention patent for modular support system of silo concrete structure. A connecting protrusion is provided at the end close to the center column, and the connecting protrusion is clamped in the connecting groove of the lower connecting plate to open a fixed support structure. The support base is unstable and lacks fixing measures; and it is difficult to remove and seal the connection with the silo wall.

[0004] The application number is: CN202010640033.8, and the name is a Bailey steel truss support device for shallow circular silo construction and its construction method. A Bailey frame and a fixed bracket are used as the support system, and a fixed bracket is installed at each end of the Bailey frame; the fixed bracket includes a horizontal rod and an inclined rod, and the end of the horizontal rod on one side of the Bailey frame is fixed on the circular mounting plate of the umbrella-shaped bracket, and the end of the horizontal rod on the other side is the mounting part. In this way, the Bailey frame will produce a large deformation after installation, the overall stability of the support system is poor, and it is difficult to remove and seal the connection with the silo wall.

[0005] The application number is: CN202011209958.3, and the name is a large-diameter shallow circular silo roof umbrella-shaped truss support system and its use method. The construction difficulty is reduced by connecting one end of the truss beam to the central column head and the other end to the silo wall through a silo wall steel corbel. However, this method results in inadequate fixing measures for the truss ends, poor stability of the support system, and large deformation. Summary of the invention

[0006] In view of the problems of poor stability, low safety performance and difficulty in dismantling and sealing the connection with the silo wall in the prior art, the present invention provides a silo roof support device and a construction method with a monitoring system. By setting a first connecting plate and a second connecting plate, one end of which is connected to the central column and the other end is connected to the upper chord and the lower chord of the Bailey beam, the force support position of the Bailey beam is adjusted, and the problems of large deformation and poor stability of the silo roof structure template support device are solved. At the same time, embedded steel bars and embedded bolts are provided inside the silo wall, and the lower chord of the Bailey beam is connected to the embedded bolts through a corbel, which solves the problem of difficulty in dismantling and sealing the inner wall of the existing silo structure and the Bailey beam, and improves the work efficiency of the installation and disassembly of the support device and the operability of the device; basket bolts are provided and rigid connectors, horizontal rods and herringbone rods are provided on the Bailey beam, so as to enhance the overall stability of the support device; a monitoring system is provided, which can monitor the status of each component and connection point of the support device in real time, timely discover and solve potential structural problems, and ensure the safety of the construction process and the stability of the support device.

[0007] In order to achieve the above-mentioned purpose, according to a first aspect of the present invention, a silo roof support device is provided, including a support base, a central column, a first connecting plate, a second connecting plate, a Bailey beam, a corbel, a wind rope, a connecting ear plate and a basket bolt, wherein the support base is arranged at the bottom of the silo, the central column is vertically arranged in the middle of the support base, the top of the central column is connected to the first connecting plate and the second connecting plate in sequence, the first connecting plate is connected to the upper chord of the Bailey beam away from the silo wall end through the basket bolt, the second connecting plate is connected to the lower chord of the Bailey beam away from the silo wall end through the connecting ear plate, at least two Bailey beams are provided and are symmetrically installed relative to the central column, the lower chord of the Bailey beam close to the silo wall end is connected to the silo wall through a corbel, and four wind ropes are provided, one end of which is connected to the central column, and the other end is respectively connected to the four corners of the bottom of the silo.

[0008] Preferably, a foundation raft is fixed at the bottom of the silo, and the supporting base includes a steel structure beam, a horizontal diagonal rod and an embedded pull ring. The steel structure beam is arranged at the center of the foundation raft, and four horizontal diagonal rods are provided. One end of the horizontal diagonal rod is connected to the central column, and the other end is fixedly connected to the steel structure beam. The embedded pull ring is arranged at the four corners of the foundation raft, and the wind rope 7 is fixedly connected to the foundation raft through the embedded pull ring.

[0009] Preferably, the central column comprises at least two standard column sections, each standard column section is fixedly connected by bolts, the guy rope is connected to the central column at two-thirds of its height, and the other end of the guy rope is fixedly connected to the foundation raft.

[0010] Preferably, the first connecting plate is fixedly connected to the central column via a rib plate, and the second connecting plate is a flange plate, and the flange plate is fixedly connected to the connecting ear plate via a steel pin or a bolt.

[0011] Preferably, it also includes a rigid connector, the Bailey beams on the same side are connected by steel pins, and the rigid connector is arranged at the connection between the upper chords of adjacent Bailey beams to increase the stability of the Bailey beams.

[0012] Preferably, it further comprises embedded bolts and embedded steel bars, wherein the embedded steel bars are arranged inside the warehouse wall, the embedded bolts are arranged on the embedded steel bars, and the lower chord of the Bailey beam is fixedly connected to the embedded bolts through a corbel.

[0013] According to a second aspect of the present invention, a monitoring system for a silo roof support device is provided, which is applied to the silo roof support device and includes a stress monitoring unit, a displacement monitoring unit, a vibration monitoring unit, a temperature monitoring unit and a central monitoring unit, wherein the central monitoring unit is connected to the stress monitoring unit, the displacement monitoring unit, the vibration monitoring unit and the temperature monitoring unit, respectively, The stress monitoring unit is arranged on the main load-bearing parts of the central column, the corbel and the Bailey beam, and is used to monitor the stress state of the device; The displacement monitoring unit is arranged on the supporting points of the central column, the corbel and the Bailey beam, and is used to monitor the verticality of the central column, the displacement and deformation of the corbel and the Bailey beam; The vibration monitoring unit is arranged on the Bailey beam and is used to monitor the dynamic characteristics of the Bailey beam; The temperature monitoring unit is arranged on the central column and the Bailey beam, and is used to monitor the temperature change of the material of the central column and the Bailey beam; The central monitoring unit is used to collect data from the stress monitoring unit, displacement monitoring unit, vibration monitoring unit and temperature monitoring unit, and perform analysis and early warning.

[0014] Preferably, the stress monitoring unit includes an inclination sensor and a strain sensor; the displacement monitoring unit is a displacement sensor; the vibration monitoring unit is a vibration sensor; the temperature sensor is a thermocouple or a resistance temperature detector; and the central control unit is a central monitoring computer.

[0015] According to a third aspect of the present invention, a construction method of a silo roof support device with a monitoring system is provided, using the monitoring system of the silo roof support device, characterized in that it specifically comprises the following steps: S1. Install the support base on the foundation raft, place the first column standard section at the center of the support base, and connect it to the support base through high-strength bolts, and place other column standard sections in sequence to form a central column until the specified construction height is reached. After installation, measure the verticality of the central column, and the deviation is less than 2mm; S2. Install the wind rope when the center column is two-thirds installed. After the wind rope is connected to the embedded pull ring, use a hand chain hoist to tighten it; S3, installing the first connection plate and the second connection plate on the top of the central column, and adjusting the horizontality of the first connection plate and the second connection plate; S4. According to the diameter of the silo, assemble the Bailey beam in the processing area and use a tower crane to hoist the Bailey beam into the silo. After hoisting into place, the lower chord at one end of the Bailey beam is supported on the corbel connected to the silo wall and fixedly connected to the corbel with a steel pin. The lower chord at the other end is fixedly connected to the second connection plate through a connecting ear plate, and the upper chord is fixedly connected to the first connection plate with a basket bolt. The Bailey beam is installed symmetrically in the silo in sequence; S5. Install the monitoring system at the corresponding supporting points and bearing positions of each device. The monitoring system monitors the status of the supporting device in real time and performs analysis and early warning.

[0016] Preferably, in S4, after all the Bailey beams are installed, horizontal rods are provided on the webs between adjacent Bailey beams to prevent lateral displacement caused by the bending moment of the Bailey beams, and herringbone diagonal rods are also provided on the sides of two adjacent Bailey beams to increase the stability of the Bailey beams.

[0017] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art: 1. The silo roof support device and construction method with a monitoring system of the present invention, by setting a first connecting plate and a second connecting plate, one end of which is connected to the central column, and the other end is connected to the upper chord and the lower chord of the Bailey beam, so as to adjust the force support position of the Bailey beam, solve the problems of large deformation and poor stability of the silo roof structure template support device, and at the same time, embedded steel bars and embedded bolts are provided inside the silo wall, and the lower chord of the Bailey beam is connected to the embedded bolts through a corbel, so as to solve the technical problems of setting a reserved groove on the inner wall of the existing silo structure, no effective fixing measures at the end of the supporting truss, the frame is not easy to dismantle, and the reserved hole is difficult to block, thereby improving the work efficiency of the installation and disassembly of the support device and the operability of the device.

[0018] 2. The silo roof support device and construction method with a monitoring system of the present invention solves the problem of instability during the installation of the support device by arranging basket bolts and rigid connectors, horizontal rods and herringbone rods on the Bailey beam, and at the same time arranging wind ropes on the central column, thereby enhancing the overall stability of the support device.

[0019] 3. The silo roof support device and construction method with a monitoring system of the present invention are provided with a monitoring system that can monitor the status of various components and connection points of the support device in real time, promptly discover and resolve potential structural problems, and ensure the safety of the construction process and the stability of the support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a silo roof support device according to Example 1 of the present invention.

[0021] Figure 2 This is a plan view of the Bailey beam installation in Example 1 of the present invention.

[0022] Figure 3 Schematic diagram of the connection between the Bailey beam and the second connecting plate.

[0023] Figure 4 Schematic diagram of the connection between Bailey beam and warehouse wall.

[0024] Figure 5 This is the plan view of the supporting base.

[0025] Figure 6 This is a schematic diagram of the structure of a silo roof support device according to Example 2 of the present invention.

[0026] Figure 7 This is a plan view of the installation of the Bailey beam according to Example 2 of the present invention.

[0027] Figure 8 The present invention is a flow chart of a method for constructing a silo roof support device with a monitoring system.

[0028] In the figure: 1. Support base; 1-1. Steel structure beam; 1-2. Horizontal diagonal rod; 1-3. Embedded pull ring; 2. Center column; 2-1. Standard section of column; 3. First connection plate; 4. Second connection plate; 5. Bailey beam; 6. Corbel; 7. Guy rope; 8. Connecting ear plate; 9. Turnbuckle bolt; 10. Rigid connector; 11. Steel pin; 12. Foundation raft; 13. Silo roof; 14. Silo wall; 15. Embedded bolts; 16. Embedded steel bars. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1 Depend on Figures 1 to 5As shown, the silo top support device of the present invention comprises a support base 1, a central column 2, a first connection plate 3, a second connection plate 4, a Bailey beam 5, a corbel 6, a wind rope 7, a connection ear plate 8 and a basket bolt 9. A basic raft 12 is fixed to the bottom of the silo. The support base 1 is arranged at the center of the basic raft 12. The central column 2 is vertically arranged in the middle of the support base 1. The top of the central column 2 is connected to the first connection plate 3 and the second connection plate 4 in sequence. The first connection plate 3 is connected to the upper chord of the Bailey beam 5 away from the silo wall 14 through the basket bolt 9. The turnbuckle bolts 9 are used to further enhance the stability of the supporting device; the second connecting plate 4 is connected to the lower chord of the Bailey beam 5 away from the warehouse wall 15 through the connecting ear plate 8; there are multiple Bailey beams 5 and they are symmetrically installed relative to the central column 2; the Bailey beams 5 are connected by steel pins; the lower chord of the Bailey beam 5 close to the warehouse wall 14 is connected to the warehouse wall 14 through the corbel 6; there are four guy ropes 7, one end of which is connected to the central column 2, and the other end is respectively connected to the four corners of the foundation raft 12; the guy ropes 7 are used to enhance the stability of the supporting device.

[0031] The supporting base 1 includes a steel structure beam 1-1, a horizontal diagonal rod 1-2 and an embedded pull ring 1-3. The steel structure beam 1-1 is arranged at the center of the foundation raft 12. Four horizontal diagonal rods 1-2 are arranged. One end of the horizontal diagonal rod 1-2 is connected to the central column 2, and the other end is fixedly connected to the steel structure beam 1-1. The embedded pull ring 1-3 is arranged at the four corners of the foundation raft 11, and the wind rope 7 is fixedly connected to the foundation raft 12 through the embedded pull ring 1-3.

[0032] The central column 2 is composed of a plurality of column standard sections 2-1. The specific number of column standard sections 2-1 is determined according to the required height. Each column standard section 2-1 is fixedly connected by bolts. The column standard section 2-1 is fixedly connected to the steel structure beam 1-1 by bolts. The wind rope 7 is connected to the central column 2 at two-thirds of its height. The other end of the wind rope 7 is fixedly connected to the foundation raft 12. The wind rope 7 can be a steel wire rope.

[0033] The first connecting plate 3 is fixedly connected to the central column 2 through a rib plate, and the second connecting plate 4 is a flange plate. The flange plate and the connecting ear plate 8 are fixedly connected through a steel pin 11 or bolts. The first connecting plate 3 and the second connecting plate 4 are both ring-shaped, which improves the stability and reliability of the connection and support device.

[0034] It also includes a rigid connector 9 , the main part of which is made of high-strength materials such as steel or alloy. The rigid connector 9 is arranged at the connection between the upper chords of adjacent Bailey beams 5 to increase the stability of the connection between the Bailey beams 5 .

[0035] Embedded steel bars 16 are provided inside the warehouse wall 14 , and embedded bolts 15 are provided on the embedded steel bars 16 . The lower chord of the Bailey beam 5 is fixedly connected to the embedded bolts 15 through the corbel 6 , or the lower chord of the Bailey beam 5 is connected to the corbel 6 through the connecting ear plate 8 , and the corbel 6 is fixedly connected to the embedded bolts 15 .

[0036] Example 2 Depend on Figure 6 and Figure 7 As shown, the silo top support device of the present invention is different from that of Example 1 in the connection structure between the Bailey beam 5 and the central column 2, and the rest of the parts are the same as those of Example 1, specifically: including a support base 1, a central column 2, a second connection plate 4, a Bailey beam 5, a corbel 6, a wind rope 7 and a connection ear plate 8, a basic raft 12 is fixed to the bottom of the silo, the support base 1 is arranged at the center of the basic raft 12, the central column 2 is vertically arranged in the middle of the support base 1, and only the second connection plate 4 is arranged on the top of the central column 2. The second connecting plate 4 is connected to the lower chord of the Bailey beam 5 away from the warehouse wall 15 through the connecting ear plate 8, and the lower chord of the Bailey beam 5 close to the warehouse wall 14 is connected to the warehouse wall 14 through the corbel 6. There are multiple Bailey beams 5 and they are symmetrically installed relative to the central column 2. The Bailey beams 5 are connected by steel pins. The lower chord of the Bailey beam 5 close to the warehouse wall 14 is connected to the warehouse wall 14 through the corbel 6. There are four guy ropes 7, one end of which is connected to the central column 2, and the other end is connected to the four corners of the foundation raft 12 respectively.

[0037] The monitoring system of the silo roof support device is applied to the above-mentioned silo roof support device, including a stress monitoring unit, a displacement monitoring unit, a vibration monitoring unit, a temperature monitoring unit and a central monitoring unit, and the central monitoring unit is connected to the stress monitoring unit, the displacement monitoring unit, the vibration monitoring unit and the temperature monitoring unit respectively, wherein: The stress monitoring unit includes an inclination sensor and a strain sensor, which are installed on the main load-bearing parts of the central column 2, the corbel 6 and the Bailey beam 5 to monitor the stress state of the device and detect the stress state of the structure during construction and use in real time to ensure structural safety.

[0038] The displacement monitoring unit is a displacement sensor, which is arranged on the supporting points of the central column 2, the corbel 6 and the Bailey beam 5, and is used to monitor the verticality of the central column 2, the displacement and deformation of the corbel 6 and the Bailey beam 5, and prevent the structure from becoming unstable.

[0039] The vibration monitoring unit is a vibration sensor, which is arranged on the Bailey beam 5 and is used to monitor the overall structure of the Bailey beam 5, especially the dynamic characteristics under the influence of wind load or construction activities, and identify possible resonance problems.

[0040] The temperature monitoring unit is a thermocouple or a resistance temperature detector, which is installed on the entire support device, with a focus on the area where the material properties of the central column 2 and the Bailey beam 5 are affected by temperature. It is used to monitor the temperature changes of the materials of the central column 2 and the Bailey beam 5 and evaluate the impact of temperature changes on material properties and structural stability.

[0041] The central monitoring unit is a central monitoring computer used to collect data from the stress monitoring unit, displacement monitoring unit, vibration monitoring unit and temperature monitoring unit, and conduct analysis and early warning to achieve centralized data management, real-time analysis and early warning, and ensure the safety of the construction and use process.

[0042] Depend on Figure 8 As shown, the construction method of the silo roof support device with a monitoring system adopts the above-mentioned silo roof support device and the monitoring system, and specifically includes the following steps: S1. Build the silo roof 13 and silo wall 14, and use the embedded steel bars 16 to perform positioning welding in the silo wall 14 according to the installation spacing by designing the bolt sleeve. When the silo wall 14 is constructed to the elevation position, the steel bars 16 are evenly embedded along the circumference of the silo wall 14. After the concrete strength reaches the requirement, the bracket 6 is connected to the bolt sleeve with the embedded bolts 15. After the bracket 6 is installed, the flatness and stability are checked. After the sliding membrane is removed, the installation position of the support base 1 is determined by laying out the lines, and the support base 1 is installed and fixed.

[0043] Place the first column standard section 2-1 at the center of the support base 1 and connect it to the support base 1 with high-strength bolts. Adjust the verticality of the column standard section 2-1, and the deviation is required to be less than 2mm. Use a tower crane to hoist other column standard sections 2-1 to form a central column 2 until the specified construction height is reached. The column standard sections 2-1 are connected by bolts. Measure the verticality of each column standard section 2-1 after installation, and the deviation is required to be less than 2mm.

[0044] S2. Install the wind rope 7 at the position where two-thirds of the central column 2 is installed. After the wind rope 7 is connected to the embedded pull ring 1-3, it is fixed tightly with a hand chain hoist. After ensuring that the column is vertical, the end is locked on the embedded pull ring 1-3 with a buckle; S3. After the installation of the center column 2 is completed, the first connection plate 3 and the second connection plate 4 are installed on the top of the center column 2, and the levelness of the first connection plate 3 and the second connection plate 4 is adjusted. The levelness can be detected and adjusted by a level measuring instrument; S4. According to the diameter of the silo, assemble the Bailey beam 5 in the processing area, and use a tower crane to lift the Bailey beam 5 into the silo. After lifting into place, the lower chord of one end of the Bailey beam 5 is supported on the corbel 6 connected to the silo wall 14, and is fixedly connected to the corbel 6 with a steel pin 11. The lower chord at the other end is fixedly connected to the second connecting plate 4 through a connecting ear plate 8, and the upper chord is fixedly connected to the first connecting plate 3 with a basket bolt 9. The Bailey beam 5 is installed symmetrically in sequence in the silo. When installing the Bailey beam 5, the Bailey beam 5 can be assembled in sequence by first installing a single Bailey beam.

[0045] After all the Bailey beams 5 are installed, the connectors 9 are installed. At the same time, horizontal rods are provided on the webs between adjacent Bailey beams 5 to prevent lateral displacement caused by the bending moment of the Bailey beams 5. The horizontal rods are connected to the webs of the Bailey beams through connectors, which are welded steel plates, high-strength bolts or special clamps.

[0046] The sides of two adjacent Bailey beams 5 are also provided with herringbone diagonal bars for increasing the stability of the Bailey beams 5. The connection between the herringbone diagonal bars and the horizontal bars is usually achieved through node plates. The node plates have bolt holes for fixing the intersections of the diagonal bars and the horizontal bars.

[0047] The specific installation steps are as follows: first install the Bailey beam 5 and ensure the verticality and alignment of the Bailey beam 5; then install the horizontal rod and fix it on the web of the Bailey beam 5 through the connector; then install the herringbone rod and connect it to the horizontal rod through the node plate and fasten it with bolts; finally check all connection points to ensure that there is no looseness and make necessary adjustments.

[0048] S5. Install monitoring systems at the corresponding support points and load-bearing positions of each device. The monitoring system monitors the status of the support device in real time and conducts analysis and early warning. Finally, after the support device is completed and accepted, the roof formwork support frame, binding, concrete pouring and other construction are carried out on its upper part.

[0049] The silo roof support device and construction method with a monitoring system of the present invention adjusts the force support position of the Bailey beam by setting a first connection plate and a second connection plate to connect one end to the central column and the other end to connect the upper chord and the lower chord of the Bailey beam, thereby solving the problem of large deformation and poor stability of the silo roof structure template support device. At the same time, embedded steel bars and embedded bolts are provided inside the silo wall, and the lower chord of the Bailey beam is connected to the embedded bolts through a corbel, thereby solving the problem of difficulty in dismantling and sealing the inner wall of the existing silo structure and the Bailey beam, and improving the work efficiency of the installation and disassembly of the support device and the operability of the device. The basket bolts are provided and the rigid connectors, horizontal rods and herringbone diagonal rods are provided on the Bailey beam to enhance the overall stability of the support device. A monitoring system is provided to monitor the status of each component and connection point of the support device in real time, timely discover and solve potential structural problems, and ensure the safety of the construction process and the stability of the support device.

[0050] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silo roof support device, characterized in that: The invention comprises a support base (1), a central column (2), a first connecting plate (3), a second connecting plate (4), a Bailey beam (5), a corbel (6), a wind rope (7), a connecting ear plate (8) and a turnbuckle bolt (9), wherein the support base (1) is arranged at the bottom of the silo, the central column (2) is vertically arranged in the middle of the support base (1), the top of the central column (2) is connected to the first connecting plate (3) and the second connecting plate (4) in sequence, and the first connecting plate (3) is connected to the Bailey beam (5) through the turnbuckle bolt (9). The upper chord at one end away from the silo wall (14) is connected, the second connecting plate (4) is connected to the lower chord at one end of the Bailey beam (5) away from the silo wall (15) through a connecting ear plate (8), at least two Bailey beams (5) are provided and are symmetrically installed relative to the central column (2), the lower chord at one end of the Bailey beam (5) close to the silo wall (14) is connected to the silo wall (14) through a corbel (6), and four wind ropes (7) are provided, one end of which is connected to the central column (2), and the other end is respectively connected to the four corners of the bottom of the silo.

2. A silo roof support device according to claim 1, characterized in that: A foundation raft (12) is fixed at the bottom of the silo, and the support base (1) comprises a steel structure beam (1-1), a horizontal inclined rod (1-2) and a pre-buried pull ring (1-3). The steel structure beam (1-1) is arranged at the center of the foundation raft (12), four horizontal inclined rods (1-2) are provided, one end of the horizontal inclined rod (1-2) is connected to the central column (2), and the other end is fixedly connected to the steel structure beam (1-1), the pre-buried pull ring (1-3) is arranged at the four corners of the foundation raft (11), and the wind rope (7) is fixedly connected to the foundation raft (12) through the pre-buried pull ring (1-3).

3. A silo roof support device according to claim 2, characterized in that: The central column (2) comprises at least two column standard sections (2-1), each column standard section (2-1) being fixedly connected by bolts, the guy rope (7) being connected to the central column (2) at two-thirds of its height, and the other end of the guy rope (7) being fixedly connected to the foundation raft (12).

4. A silo roof support device according to claim 1, characterized in that: The first connection plate (3) is fixedly connected to the central column (2) via a rib plate, and the second connection plate (4) is a flange plate, and the flange plate is fixedly connected to the connection ear plate (8) via a steel pin (11) or a bolt.

5. A silo roof support device according to claim 1, characterized in that: It also includes a rigid connecting member (9), and the Bailey beams (5) on the same side are connected by a steel pin (11). The rigid connecting member (9) is arranged at the connection between the upper chords of adjacent Bailey beams (5) to increase the stability of the Bailey beams (5).

6. The silo roof support device according to claim 1, characterized in that: It also includes embedded bolts (15) and embedded steel bars (16), wherein the embedded steel bars (16) are arranged inside the warehouse wall (14), the embedded bolts (15) are arranged on the embedded steel bars (16), and the lower chord of the Bailey beam (5) is fixedly connected to the embedded bolts (15) via a corbel (6).

7. A monitoring system for a silo roof support device, applied to the silo roof support device according to any one of claims 1 to 6, characterized in that: It includes a stress monitoring unit, a displacement monitoring unit, a vibration monitoring unit, a temperature monitoring unit and a central monitoring unit, wherein the central monitoring unit is connected to the stress monitoring unit, the displacement monitoring unit, the vibration monitoring unit and the temperature monitoring unit respectively, wherein: The stress monitoring unit is arranged on the main load-bearing parts of the central column (2), the bracket (6) and the Bailey beam (5) and is used to monitor the stress state of the device; The displacement monitoring unit is arranged at the supporting points of the central column (2), the bracket (6) and the Bailey beam (5), and is used to monitor the verticality of the central column (2), the displacement and deformation of the bracket (6) and the Bailey beam (5); The vibration monitoring unit is arranged on the Bailey beam (5) and is used to monitor the dynamic characteristics of the Bailey beam (5); The temperature monitoring unit is arranged on the central column (2) and the Bailey beam (5) and is used to monitor the temperature change of the material of the central column (2) and the Bailey beam (5); The central monitoring unit is used to collect data from the stress monitoring unit, displacement monitoring unit, vibration monitoring unit and temperature monitoring unit, and perform analysis and early warning.

8. The monitoring system for the silo roof support device according to claim 7, characterized in that: The stress monitoring unit includes an inclination sensor and a strain sensor; the displacement monitoring unit is a displacement sensor; the vibration monitoring unit is a vibration sensor; the temperature sensor is a thermocouple or a resistance temperature detector; and the central control unit is a central monitoring computer.

9. A construction method for a silo roof support device with a monitoring system, using the monitoring system of the silo roof support device according to any one of claims 7 or 8, characterized in that: The specific steps include: S1. Install a support base (1) on the foundation raft (12), place the first column standard section (2-1) at the center of the support base (1), and connect it to the support base (1) through high-strength bolts, and place other column standard sections (2-1) in sequence to form a central column (2) until the specified construction height is reached. After installation, measure the verticality of the central column (2), and the deviation is less than 2 mm; S2. Install the wind rope (7) at the position where two-thirds of the central column (2) is installed. After the wind rope (7) is connected to the embedded pull ring (1-3), it is fastened with a hand chain hoist; S3, installing the first connection plate (3) and the second connection plate (4) on the top of the central column (2), and adjusting the horizontality of the first connection plate (3) and the second connection plate (4); S4. According to the diameter of the silo, assemble the Bailey beam (5) in the processing area, and use a tower crane to hoist the Bailey beam (5) into the silo. After hoisting into place, the lower chord of one end of the Bailey beam (5) is supported on a corbel (6) connected to the silo wall (14), and is fixedly connected to the corbel (6) by a steel pin (11). The lower chord at the other end is fixedly connected to the second connecting plate (4) by a connecting ear plate (8), and the upper chord is fixedly connected to the first connecting plate (3) by a basket bolt (9). The Bailey beam (5) is symmetrically installed in the silo in sequence; S5. Install the monitoring system at the corresponding supporting points and bearing positions of each device. The monitoring system monitors the status of the supporting device in real time and performs analysis and early warning.

10. The construction method of the silo roof support device with a monitoring system according to claim 9, characterized in that: In S4, after all the Bailey beams (5) are installed, horizontal rods are provided on the webs between adjacent Bailey beams (5) to prevent lateral displacement caused by the bending moment of the Bailey beams (5), and herringbone diagonal rods are also provided on the sides of two adjacent Bailey beams (5) to increase the stability of the Bailey beams (5).

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