Construction platform for squat silo umbrella stand supporting system and using method of construction platform

Abstract

According to the squat silo umbrella stand supporting system construction platform and the using method thereof, a lifting support comprises a circular bottom plate and a circular top plate which are arranged in parallel, the middle of the circular bottom plate and the middle of the circular top plate are each provided with a sleeving hole, the circular bottom plate and the circular top plate are fixedly connected into a whole, the sleeving holes are formed in a central stand column in a sleeving mode, and a driving device is arranged on the lifting support; a plurality of radial supports are densely and evenly distributed on the circular top plate, the inner ends of the radial supports are hinged to the circular top plate, linear push-pull mechanisms are evenly distributed on the circular bottom plate, bases of the linear push-pull mechanisms are hinged to the circular bottom plate, and telescopic rods are hinged to the inner ends of the radial supports. In this way, the radial support can be assembled on the ground and integrally climbs along the center stand column to assemble the platform, meanwhile, the platform formed by the radial support can be disassembled in the mode that the platform integrally descends to the ground from the high altitude, and the assembling and disassembling efficiency of the supporting platform is effectively improved. And the high-altitude operation time of constructors is greatly shortened, and the construction safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering, and in particular to a shallow silo umbrella stand support system construction platform and a use method thereof. Background Art

[0002] Shallow silo, also known as short silo, is a silo with a height to diameter ratio of less than 1.5. Shallow silos are cylindrical in shape and occupy a small area. They can achieve a larger storage capacity under limited land resources, effectively improving land utilization. Shallow silos also have a large diameter, high grain stacks, and large storage capacity. The storage capacity of a single silo is generally 2,500-10,000 tons, or even larger, which can meet the needs of large-scale grain storage.

[0003] During the construction of a shallow circular silo, the silo walls are first constructed using a sliding membrane method. Once the silo walls are completed, the conical roof is constructed, and finally the roof cover is built. Before constructing the conical roof, a support platform is required inside the silo to support the mold scaffolding. Invention patent publication number CN 118223672A discloses a construction method for a Bailey frame steel support system for the conical roof of a shallow circular silo. This construction method forms a support platform by erecting Bailey frames on the silo roof.

[0004] During construction, this patent first sets up standard tower sections, and then installs Bailey frames by ground assembly and suspended hoisting to form a support platform. After the construction is completed, the disassembly process is that the construction workers remove the Bailey frames one by one on the top of the warehouse and hoist them to the ground one by one through a winch. The suspended installation and disassembly method has poor stability, and there is a risk that the Bailey frames will shake and hit the warehouse wall, causing damage to the warehouse body. Scaffolding needs to be set up later for repair. In addition, the safety risks of long-term assembly and disassembly operations at high altitudes are relatively high. Serious safety accidents have occurred in which workers fell from heights during the construction process. Therefore, the construction method of the umbrella frame support system for shallow circular warehouses needs to be further improved. Summary of the Invention

[0005] In order to solve the above problems, the present invention proposes a shallow silo umbrella stand support system construction platform and a method of using the same.

[0006] The technical solution of the present invention is: a construction platform for a shallow circular silo umbrella stand support system, comprising a central column, a lifting support and a radial support; the lifting support comprises a circular bottom plate and a circular top plate arranged parallel to each other, and the middle parts of the circular bottom plate and the circular top plate are provided with a socket hole, the circular bottom plate and the circular top plate are fixedly connected as a whole through a longitudinal rod and a transverse rod, the socket hole is sleeved on the central column, and a driving device is provided between the lifting support and the central column; the circular top plate is densely and evenly distributed with a number of radial supports, the inner ends of the radial supports are hinged to the circular top plate, and the circular bottom plate is evenly distributed with linear push-pull mechanisms of the same number as the radial supports, the base of the linear push-pull mechanism is hinged to the circular bottom plate, and the telescopic rod is hinged to the inner end of the radial support; at least two annular reinforcing ribs are concentrically connected between the upper end faces of the radial supports.

[0007] Preferably, the main body of the radial support is an I-beam, and the middle part of the bottom surface of the I-beam is vertically fixedly connected with the first vertical strut, the second vertical strut and the third vertical strut at equal intervals. The lower ends of the first vertical strut, the second vertical strut and the third vertical strut are connected with horizontal reinforcements. A first-level external diagonal reinforcement is provided between the outer end of the I-beam and the lower end of the first vertical strut, and a first-level internal diagonal reinforcement is provided between the inner end of the I-beam and the lower end of the second vertical strut.

[0008] Preferably, a secondary external diagonal tie bar is provided between the lower end of the second vertical support and the outer end portion of the I-beam, and the secondary external diagonal tie bar and the primary external diagonal tie bar are arranged parallel to each other; a secondary internal diagonal tie bar is provided between the lower end of the third vertical support and the inner end portion of the I-beam, and the secondary internal diagonal tie bar and the primary internal diagonal tie bar are arranged parallel to each other.

[0009] Preferably, the first-level external oblique tie bars, the second-level external oblique tie bars, the first-level internal oblique tie bars and the second-level internal oblique tie bars are all connected to the I-beam through a fixed sleeve, and the ends of the transverse tie bars and each oblique tie bar extending out of the fixed sleeve are threadedly connected with nuts.

[0010] Preferably, the transverse tie bars, the first-level external oblique tie bars, the second-level external oblique tie bars, the first-level internal oblique tie bars and the second-level internal oblique tie bars are each provided in pairs and symmetrically arranged on both sides of the I-beam.

[0011] Preferably, the driving device includes a rack, a gear set and a worm gear motor, the rack is fixed to the side of the central column along the length direction, the worm gear motor is fixedly mounted on the circular base plate, and the output end of the worm gear motor is connected to the rack through the gear set.

[0012] Preferably, the circular bottom plate and the circular top plate socket holes are both provided with guide wheels, and the guide wheels are rollingly supported between the lifting support and the central column.

[0013] A method for using a shallow silo umbrella stand support system construction platform, the steps of which are as follows:

[0014] ① Build a concrete base on the center ground of the shallow circular silo where the main concrete structure is completed. Install the central column section by section on the concrete base, and install the lifting support and drive device on the central column; ② Use the driving device to adjust the lifting support to the lower end close to the center column. The lifting support has a certain height from the ground, and radial brackets and linear push-pull mechanisms are sequentially installed on the circular bottom plate and circular top plate of the lifting support; ③ Keep the radial support in a downward tilt state so that its outer end and the inner side of the shallow round silo There is enough clearance between the walls, and the driving device is started to drive the lifting support and the evenly arranged radial supports to slowly rise along the central column; ④After the radial support is raised to the predetermined position, each linear drive mechanism is started synchronously. The radial support is driven to rotate upward by a linear drive mechanism until its upper surface is flush with the upper surface of the I-beam; ⑤ Connect the annular reinforcement ribs between the upper ends of the radial supports and Install reinforcement supports between the outer end and the inner side of the shallow silo to ensure that the construction platform formed by the radial supports has sufficient support strength. After laying wooden boards between the radial supports, the installation of the construction platform is completed.

[0015] ⑥ After the construction workers complete the installation of the umbrella support system on the construction platform, they will leave. The wooden planks laid on the construction platform surface are removed, and the annular reinforcement and reinforcement supports are removed to release the radial supports in a fixed state; ⑦ Synchronously start the linear drive mechanism to drive the radial bracket to tilt downward so that its outer end Stay away from the inner wall of the shallow silo, then start the drive device to drive the lifting support and radial support to slowly descend along the neutral column. After reaching the ground, disassemble them to complete the disassembly of the construction platform.

[0016] The beneficial technical effects of the present invention are: The present invention can realize the platform assembly in the form of radial brackets being assembled on the ground and climbing along the central column as a whole. At the same time, the platform formed by the radial brackets can be disassembled in the form of dropping the platform as a whole from a high altitude to the ground, which effectively improves the assembly and disassembly efficiency of the support platform, greatly reduces the high-altitude working time of construction workers, improves construction safety, and avoids serious safety accidents.

[0017] A linear push-pull mechanism is installed between the radial bracket and the lifting support of the present invention. Through the synchronous operation of these linear push-pull mechanisms, the radial bracket can be driven to rotate and fold, so that the center of gravity of the radial bracket is closer to the central column during the lifting process, thereby improving the stability of the bracket when climbing or landing. At the same time, during the lifting process, sufficient gap can be left between the radial bracket and the inner side of the warehouse body, and the outer end of the bracket will not scratch and damage the warehouse wall, thereby avoiding subsequent high-altitude repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural diagrams of the construction platform and the central column of the present invention; Figure 2 yes Figure 1 A partial enlarged view of Figure 3 yes Figure 1 AA-direction cross-sectional structural diagram; Figure 4 yes Figure 3 A partial enlarged view of Figure 5 This is the second schematic diagram of the three-dimensional structure of the construction platform and the central column of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of a partial component of the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the radial support; Figure 8 yes Figure 7 A partial enlarged view of Figure 9 Schematic diagram of the three-dimensional structure of the construction platform and shallow silo; Figure 10 yes Figure 9 A partial enlarged view of Figure 11 This is a structural diagram of the construction platform inside the shallow circular silo.

[0019] In the figure, 1. Central column, 11. Concrete base, 2. Lifting support, 21. Circular bottom plate, 22. Circular top plate, 23. Socket hole, 24. Longitudinal rod, 25. Transverse rod, 3. Radial bracket, 31. I-beam, 32. First vertical support rod, 33. Second vertical support rod, 34. Third vertical support rod, 35. Horizontal tie bar, 36. First-level external oblique tie bar, 37. First-level internal oblique tie bar, 38. Second-level external oblique tie bar, 39. Second-level internal oblique tie bar, 41. Fixed sleeve, 42. Nut, 5. Linear push-pull mechanism, 6. Annular reinforcement rib, 71. Rack, 72. Gear set, 8. Worm gear motor, 9. Shallow silo, 10. Reinforced support. DETAILED DESCRIPTION

[0020] Example 1, see attached Figure 1-11 , a shallow circular silo umbrella stand support system construction platform, including a central column 1, a lifting support 2 and a radial support 3; the lifting support 2 includes a circular bottom plate 21 and a circular top plate 22 arranged parallel to each other, and a sleeve hole 23 is provided in the middle of the circular bottom plate 21 and the circular top plate 22. The circular bottom plate and the circular top plate are fixedly connected as a whole through a longitudinal rod 24 and a transverse rod 25. The sleeve hole 23 is sleeved on the central column 1, and then the entire lifting support 2 is sleeved on the neutral column. A driving device is provided between the lifting support 2 and the central column 1, and the driving device drives the lifting support 2 to climb or descend on the central column 1; the circular top plate 22 is densely and evenly distributed with a number of radial supports 3, and the radial supports The inner end of the circular top plate 22 is hinged to the circular top plate 22, and the circular bottom plate 21 is evenly distributed with linear push-pull mechanisms 5 of the same number as the radial brackets 3. The push-pull structure is realized by a cylinder or an electric push rod, and the base of the linear push-pull mechanism 5 is hinged to the circular bottom plate 21, and the telescopic rod is hinged to the inner end of the radial bracket 3; the radial bracket 3 can be driven to rotate and fold through the synchronous operation of the linear push-pull mechanism 5, so that the center of gravity of the radial bracket 3 is closer to the central column 1 during the lifting process, thereby improving the stability of the bracket in climbing or landing. At the same time, during the lifting process, sufficient gap can be left between the radial bracket 3 and the inner side of the warehouse body, so that the outer end of the bracket will not scratch and damage the warehouse wall, thereby avoiding subsequent high-altitude repairs.

[0021] At least two annular reinforcement ribs 6 are concentrically connected between the upper end surfaces of the radial supports 3 , and the annular reinforcement ribs 6 are used to assist in reinforcing the body of each radial support 3 .

[0022] The driving device includes a rack 71, a gear set 72 and a worm motor 8. The rack 71 is fixed to the side of the central column 1 along the length direction. The worm motor 8 is fixedly installed on the circular base plate 21. The output end of the worm motor 8 is connected to the rack 71 through the gear set 72. The driving device drives the reduction gear set 72 through the worm motor 8, and drives the lifting support 2 to climb or descend along the central column 1 through the engagement of the reduction gear set with the rack. The rack 71, the gear set 72 and the worm motor 8 are all set to two groups, which are symmetrically arranged on both sides of the central column 1 to ensure that they have sufficient driving power, and rely on the self-locking of the worm motor 8 to keep the lifting support 2 and the neutral column in a locked state.

[0023] The circular bottom plate 21 and the circular top plate 22 socket holes 23 are both provided with guide wheels, which are rolled and supported between the lifting support 2 and the center column 1. The lifting support 2 slides on the center column 1 through the guide wheels to improve the sliding support and guidance, thereby ensuring the lifting and sliding stability of the lifting support 2.

[0024] Example 2, see attached Figure 6-8This embodiment is basically the same as the first embodiment, and the similarities are not repeated here. The differences are as follows: the main body of the radial support 3 is an I-beam 31, and a first vertical support rod 32, a second vertical support rod 33, and a third vertical support rod 34 are fixedly connected at equal intervals in the middle of the bottom surface of the I-beam 31. A transverse tie rod 35 is connected between the lower ends of the first vertical support rod 32, the second vertical support rod 33, and the third vertical support rod 34. The lower end of each vertical support rod is provided with a through hole, and the transverse tie rod 35 is inserted between each through hole. Both ends of the transverse tie rod 35 are provided with a threaded section, and the threaded section is connected to a nut 42 extending from the through hole. By screwing the cover nut 42, the transverse tie rod 35 is pulled outward to generate tension. A first-level external diagonal tie rod 36 is provided between the outer end of the I-beam 31 and the lower end of the first vertical support rod 32, and a first-level internal diagonal tie rod 37 is provided between the inner end of the I-beam 31 and the lower end of the second vertical support rod 33.

[0025] A transverse tension is applied to the lower end of the vertical support rod through the transverse tie rod 35, and then acts on the two ends of the I-beam 31 through the first vertical support rod 32 and the third vertical support rod 34, so that the I-beam 31 generates a certain upward prestress. The first-level external oblique tie rod 36 and the first-level internal oblique tie rod 37 directly pull the two ends of the I-beam 31, and combine with the transverse tie rod 35 to increase the upward prestress of the I-beam 31. By applying prestress to the I-beam 31, the pressure applied by the scaffolding docking of the conical warehouse roof during the later construction process is offset, thereby improving the support strength of the I-beam 31 and ensuring the safety of the support platform during construction.

[0026] A secondary external diagonal brace 38 is provided between the lower end of the second vertical brace and the outer end of the I-beam 31. The secondary external diagonal brace 38 is arranged parallel to the primary external diagonal brace 36. A secondary internal diagonal brace 39 is provided between the lower end of the third vertical brace and the inner end of the I-beam 31. The secondary internal diagonal brace 39 is arranged parallel to the primary internal diagonal brace 37. The secondary internal diagonal brace 39 and the secondary external diagonal brace 38 assist the primary diagonal brace to further prestress the I-beam 31. Furthermore, a multi-trim triangular support structure, evenly spaced vertically, is formed between the vertical brace and the I-beam 31, enhancing the structural strength of the radial support 3.

[0027] The first-level outer oblique tie bars 36, the second-level outer oblique tie bars 38, the first-level inner oblique tie bars 37 and the second-level inner oblique tie bars 39 are all connected to the I-beam 31 through a fixed sleeve 41. The ends of the transverse tie bars 35 and each oblique tie bar extending out of the fixed sleeve 41 are threadedly connected with nuts 42. By screwing the nuts 42, the oblique tie bars can be pulled outward, so that the oblique tie bars generate tension, thereby generating prestress on the I-beam 31.

[0028] There are two transverse braces 35 , first-level external oblique braces 36 , second-level external oblique braces 38 , first-level internal oblique braces 37 and second-level internal oblique braces 39 , which are symmetrically arranged on both sides of the I-beam 31 .

[0029] Example 3, a method for using a construction platform of a shallow silo with 9 umbrella racks supporting system, the method steps are as follows:

[0030] ① Build a concrete foundation 11 on the central ground of the shallow silo 9 where the concrete main body is completed. Install the central column 1 on the concrete foundation 11 section by section, ensuring that the central column is located at the center of the shallow silo. Install the lifting support 2 and the drive device on the central column 1. ② Use the driving device to adjust the lifting support 2 to the lower end close to the center column 1. At this time, the lifting support 2 is at a certain height from the ground. Install the radial bracket 3 and the linear push-pull mechanism 5 on the circular bottom plate 21 and the circular top plate 22 of the lifting support 2 in sequence; ③ Keep the radial supports 3 in a downward tilted state so that there is sufficient clearance between their outer ends and the inner wall of the shallow silo 9 to avoid scratches during the ascent. Start the driving device to drive the lifting support 2 and the evenly arranged radial supports 3 to slowly rise along the central column 1. ④ After the radial support 3 is raised to the predetermined position, each linear drive mechanism is started synchronously. The radial support 3 is driven to rotate upward by the linear drive mechanism until its upper surface is flush with the upper surface of the I-beam 31, forming a reliable construction platform; ⑤ Connect the annular reinforcement rib 6 between the upper ends of the radial supports 3 and A reinforcement support 10 is installed between the outer end and the inner side of the shallow silo 9 to ensure that the construction platform formed by the radial bracket 3 has sufficient supporting strength. After laying wooden boards between the radial brackets 3, the installation of the construction platform is completed;

[0031] ⑥ After the construction workers complete the installation of the umbrella support system on the construction platform, they will leave. The wooden planks laid on the surface of the construction platform are removed, and the annular reinforcement ribs 6 and the reinforcement support 10 are removed to release the radial support 3 in a fixed state; ⑦ Synchronously start the linear drive mechanism to drive the radial support 3 to tilt downward so that its outer end Stay away from the inner wall of the shallow silo 9, then start the driving device to drive the lifting support 2 and the radial support 3 to slowly descend along the neutral column, and disassemble them after reaching the ground to complete the disassembly of the construction platform.

[0032] The usage method of this embodiment can realize the radial bracket 3 being assembled on the ground and being assembled on the platform by climbing as a whole along the central column 1. At the same time, the platform formed by the radial bracket 3 can be disassembled by dropping the entire platform from a high altitude to the ground, which effectively improves the assembly and disassembly efficiency of the support platform, greatly reduces the high-altitude working time of construction personnel, improves construction safety, and avoids serious safety accidents.

Claims

1. A construction platform for a shallow silo umbrella stand support system, characterized by: It includes a central column, a lifting support and a radial support; the lifting support includes a circular bottom plate and a circular top plate arranged parallel to each other, and the middle parts of the circular bottom plate and the circular top plate are provided with a socket hole, the circular bottom plate and the circular top plate are fixedly connected as a whole by a longitudinal rod and a transverse rod, the socket hole is sleeved on the central column, and a driving device is provided between the lifting support and the central column; the circular top plate is densely and evenly distributed with a number of radial supports, the inner ends of the radial supports are hinged to the circular top plate, and the circular bottom plate is evenly distributed with linear push-pull mechanisms of the same number as the radial supports, the base of the linear push-pull mechanism is hinged to the circular bottom plate, and the telescopic rod is hinged to the inner end of the radial support; at least two annular reinforcing ribs are concentrically connected between the upper end faces of the radial supports.

2. The shallow silo umbrella stand support system construction platform according to claim 1 is characterized by: The main body of the radial support is an I-beam, and the middle part of the bottom surface of the I-beam is vertically fixed with a first vertical strut, a second vertical strut and a third vertical strut at equal intervals. Horizontal reinforcement is connected between the lower ends of the first vertical strut, the second vertical strut and the third vertical strut. A first-level external oblique reinforcement is provided between the outer end of the I-beam and the lower end of the first vertical strut, and a first-level internal oblique reinforcement is provided between the inner end of the I-beam and the lower end of the second vertical strut.

3. The shallow silo umbrella stand support system construction platform according to claim 2 is characterized by: A secondary external diagonal tie bar is provided between the lower end of the second vertical support and the outer end portion of the I-beam, and the secondary external diagonal tie bar and the primary external diagonal tie bar are arranged parallel to each other. A secondary internal diagonal tie bar is provided between the lower end of the third vertical support and the inner end portion of the I-beam, and the secondary internal diagonal tie bar and the primary internal diagonal tie bar are arranged parallel to each other.

4. The shallow silo umbrella stand support system construction platform according to claim 3 is characterized by: The first-level outer oblique bracing bars, the second-level outer oblique bracing bars, the first-level inner oblique bracing bars and the second-level inner oblique bracing bars are all connected to the I-beam through a fixed sliding sleeve, and the ends of the transverse bracing bars and each oblique bracing bar extending out of the fixed sliding sleeve are threadedly connected with nuts.

5. The shallow silo umbrella stand support system construction platform according to claim 3 is characterized by: The transverse tie bars, the first-level external oblique tie bars, the second-level external oblique tie bars, the first-level internal oblique tie bars and the second-level internal oblique tie bars are all provided in pairs and are symmetrically arranged on both sides of the I-beam.

6. The shallow silo umbrella stand support system construction platform according to claim 1 is characterized by: The driving device includes a rack, a gear set and a worm gear motor. The rack is fixed to the side of the central column along the length direction. The worm gear motor is fixedly installed on the circular base plate. The output end of the worm gear motor is connected to the rack through the gear set.

7. The shallow silo umbrella stand support system construction platform according to claim 6 is characterized by: The circular bottom plate and the circular top plate sleeve hole portions are both provided with guide wheels, and the guide wheels are rollingly supported between the lifting support and the central column.

8. A method for using a construction platform for a shallow silo umbrella stand support system according to any one of claims 1 to 7, characterized by comprising the following steps: Installation of construction platform for umbrella stand support system ① Build a concrete base on the center ground of the shallow circular silo where the main concrete structure is completed. Install the central column section by section on the concrete base, and install the lifting support and drive device on the central column; ② Use the driving device to adjust the lifting support to the lower end close to the center column. The lifting support has a certain height from the ground, and radial brackets and linear push-pull mechanisms are sequentially installed on the circular bottom plate and circular top plate of the lifting support; ③ Keep the radial support in a downward tilt state so that its outer end and the inner side of the shallow round silo There is enough clearance between the walls, and the driving device is started to drive the lifting support and the evenly arranged radial supports to slowly rise along the central column; ④After the radial support is raised to the predetermined position, each linear drive mechanism is started synchronously. The radial support is driven to rotate upward by a linear drive mechanism until its upper surface is flush with the upper surface of the I-beam; ⑤ Connect the annular reinforcement ribs between the upper ends of the radial supports and Install reinforcement supports between the outer end and the inner side of the shallow silo to ensure that the construction platform formed by the radial supports has sufficient support strength. After laying wooden boards between the radial supports, the installation of the construction platform is completed. Disassembly of the construction platform of the umbrella stand support system ⑥ After the construction workers complete the installation of the umbrella support system on the construction platform, they will leave. The wooden planks laid on the construction platform surface are removed, and the annular reinforcement and reinforcement supports are removed to release the radial supports in a fixed state; ⑦ Synchronously start the linear drive mechanism to drive the radial bracket to tilt downward so that its outer end Stay away from the inner wall of the shallow silo, then start the drive device to drive the lifting support and radial support to slowly descend along the neutral column. After reaching the ground, disassemble them to complete the disassembly of the construction platform.

Images