Operation platform and construction method for construction of lower ring beam and eave gutter of squat silo

Abstract

The invention belongs to the technical field of round silo top construction operation platforms, and particularly relates to an operation platform and a construction method for squat silo lower ring beam and eave gutter construction, the platform comprises a pre-embedded assembly and a supporting assembly, and the pre-embedded assembly and the supporting assembly are arranged on the inner side and the outer side of a structure body in a circumferential array mode; in the pre-embedded assembly, a fixing steel bar is bound to a main steel bar framework, and a threaded sleeve is welded to the main steel bar framework. The outer sleeve is connected with the steel bars with the threads, the supporting rod is connected with the first vertical rod, the other end of the outer sleeve is connected with the second vertical rod, the second vertical rod surrounds the dense mesh, and the springboard is installed on the supporting assembly; the construction method mainly comprises the steps of fixing the steel bars when the main body reinforcement cage is bound, welding the thread bushings, plugging and pouring concrete; supporting assemblies such as steel bars with wires, outer sleeves and supporting rods are installed; mounting a springboard to form a platform, and arranging a dense mesh; compared with the prior art, the problems that traditional construction is high in safety risk, large in turnover material input amount, low in construction efficiency, large in labor input and long in construction period are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of construction operation platform technology for the top of a circular silo, and in particular to an operation platform and construction method for the construction of the lower ring beam and eaves gutter of a shallow circular silo. Background Technology

[0002] As modern industrial warehousing facilities develop towards larger and lighter sizes, the roof structures of silo projects, due to their unique curved shapes and towering heights, place higher demands on construction technology. Traditional scaffolding or full-span support systems suffer from problems such as long erection periods, high risks associated with working at heights, and significant material waste, making them unsuitable for the construction needs of large-span, thin-walled conical shell structures.

[0003] In the past decade or so, shallow circular silo structures have seen rapid application and development in my country. Addressing this technological bottleneck, this paper proposes an operating platform for the construction of the lower ring beam and eaves gutter in shallow circular silos. This platform effectively solves the pain points of traditional construction methods, such as high safety risks, large quantities of reusable materials, low construction efficiency, high labor input, and long construction cycles. It also solves the problems of long erection cycles, low construction efficiency, and serious material waste associated with full-span scaffolding systems. The research results provide a reusable technical path for similar projects and have significant reference value for promoting the transformation and upgrading of silo construction technology and advancing the development of building industrialization. It has good socio-economic benefits and broad prospects for promotion. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by developing an operating platform and construction method for the construction of shallow circular granary lower ring beams and eaves gutters, effectively solving the pain points of high safety risks, large input of turnover materials, low construction efficiency, high labor input, and long construction period in traditional construction.

[0005] The technical solution of this invention to solve the technical problem is as follows: an operating platform for the construction of a ring beam and eaves gutter under a shallow circular silo, comprising a main structure and a ring beam and eaves gutter, wherein the ring beam and eaves gutter are located on the top of the main structure; it also includes embedded components and support components, wherein the embedded components are located below the ring beam and eaves gutter, and the embedded components include fixed reinforcing bars and threaded sleeves, wherein the fixed reinforcing bars are tied to the reinforcing bar skeleton of the main structure, and the threaded sleeves are welded to the fixed reinforcing bars; the support components include threaded reinforcing bars and outer sleeves, wherein the threaded reinforcing bars are threadedly connected to the threaded sleeves, and the outer sleeves are connected to the threaded reinforcing bars, wherein the outer sleeves are connected to support rods by fasteners; the embedded components and support components are arranged in a circumferential array on the main structure, and a scaffold is installed on the support components.

[0006] Preferably, the embedded components and support components are arranged in a circumferential array on both the inner and outer sides of the main structure.

[0007] Preferably, the fixing reinforcing bars are symmetrically arranged on both sides of the threaded sleeve in the vertical direction.

[0008] Preferably, the free end of the support rod is connected to a first vertical rod via a fastener, and the other end of the first vertical rod is connected to a wired steel bar via a fastener.

[0009] Preferably, the end of the outer sleeve away from the pre-embedded component is connected to a second vertical rod via a fastener, and a dense mesh is arranged around the multiple second vertical rods.

[0010] Preferably, the top elevation of the second vertical rod of the inner and outer support components of the main structure is greater than the top elevation of the ring beam and the eaves gutter, and the height of the second vertical rod of the outer support component is not less than twice the height of the second vertical rod of the inner support component.

[0011] Preferably, the outer sleeve is provided with a through hole, and the wired steel bar is provided with a corresponding threaded hole. The outer sleeve and the wired steel bar are connected in the threaded hole of the steel bar by a positioning bolt passing through the through hole.

[0012] A construction method for an operating platform used in the construction of the lower ring beam and eaves gutter of a shallow circular silo includes the following steps: Step 1: When tying the steel reinforcement cage of the main structure, tie and fix the steel reinforcement at the same time; Step 2: Weld the threaded sleeve to the fixed reinforcing bar and temporarily seal the opening of the threaded sleeve, then set up the formwork and pour concrete; Step 3: After the concrete reaches its strength, remove the temporary seal, screw the wired steel bar onto the threaded sleeve, install the fastener on the wired steel bar in advance to connect the first vertical rod, connect the outer sleeve to the wired steel bar, connect the support rod through the fastener, then connect the first vertical rod through the fastener, and finally connect the second vertical rod through the fastener to the end of the outer sleeve away from the pre-embedded component. Complete the installation of all support components inside and outside the main structure by following the above steps. Step 4: Connect the springboard to the support components set up in the circular array to form an operating platform; Step 5: Install a dense mesh net around the inner and outer second vertical bars.

[0013] Preferably, in step 3, the lap length between the outer sleeve and the wired reinforcing bar is not less than 2 / 3 of the length of the wired reinforcing bar.

[0014] Preferably, in step 4, the overlap length between two adjacent planks is not less than 200mm, and the overlap is fixed with no less than two binding points.

[0015] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solutions have the following advantages or beneficial effects: 1. This invention effectively solves the pain points of traditional construction, such as high safety risks, large amount of turnover materials, low construction efficiency, high labor input, and long construction period; 2. This invention solves the problems of long erection period, low construction efficiency, and serious material waste in full-span scaffolding systems. The research results provide a reusable technical path for similar projects and have important reference value for promoting the transformation and upgrading of silo construction technology and facilitating the development of building industrialization. It has good social and economic benefits and broad prospects for promotion. 3. All support components of the present invention are detachable, recyclable and reusable, with a high turnover rate and lower operating costs compared to traditional full-span scaffolding; 4. The construction of the pre-embedded components of this invention can be carried out simultaneously with the binding of the steel reinforcement structure, without delaying the construction period. When the supporting components are erected later, other parts of the main structure can also be constructed at the same time without occupying the working surface, thus improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention; Figure 2 for Figure 1 A cross-sectional view along the AA direction; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a top view of the present invention; Figure 5 The overall structure of the present invention Figure 1 ; Figure 6 The overall structure of the present invention Figure 2 ; Figure 7 This is a structural diagram of the embedded component of the present invention; Figure 8 This is a structural diagram of the supporting components of the present invention.

[0017] The components include: 1. Main structure; 2. Ring beam and eaves gutter; 3. Fixed reinforcing bars; 4. Threaded sleeve; 5. Wired reinforcing bars; 6. Outer sleeve; 61. Positioning bolts; 7. Support rods; 8. First vertical rod; 9. Second vertical rod; 10. Plank; 11. Dense mesh netting. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0019] Example 1 See Figures 1 to 8An operating platform for the construction of a ring beam and eaves gutter under a shallow circular silo includes a main structure 1 and a ring beam and eaves gutter 2, the ring beam and eaves gutter 2 being located on top of the main structure 1; it also includes embedded components and support components, the embedded components being located below the ring beam and eaves gutter 2, the embedded components including fixed reinforcing bars and threaded sleeves 4, the fixed reinforcing bars being tied to the reinforcing bar skeleton of the main structure 1, the threaded sleeves 4 being welded to the fixed reinforcing bars, the support components including threaded reinforcing bars 5 and outer sleeves 6, the threaded reinforcing bars 5 being threadedly connected to the threaded sleeves 4, the outer sleeves 6 being connected to the threaded reinforcing bars 5, and a support rod 7 being connected to the outer sleeves 6 via fasteners, the embedded components and support components being arranged in a circumferential array on the main structure 1, and a scaffolding board 10 being installed on the support components.

[0020] The pre-embedded components and support components are arranged in a circumferential array on both the inner and outer sides of the main structure 1.

[0021] The fixing steel bars 3 are symmetrically arranged on both sides of the threaded sleeve 4 in the vertical direction to provide better support for the sleeve, prevent tilting during concrete pouring, and also prevent positional displacement caused by concrete expansion during curing.

[0022] The free end of the support rod 7 is connected to the first vertical rod 8 via a fastener. The other end of the first vertical rod 8 is connected to the wired steel bar 5 via a fastener. The first vertical rod 8, the support rod 7, the outer sleeve 6, and the wired steel bar 5 form a triangular support structure, which can ensure the stability of the working platform.

[0023] The outer sleeve 6 is connected to a second vertical rod 9 at the end away from the pre-embedded component via a fastener. A dense mesh 11 is arranged around the multiple second vertical rods 9. The height of the outer second vertical rod 9 is not less than 3m, and the height of the inner second vertical rod 9 is not less than 1.5m.

[0024] The top elevation of the second vertical rod 9 of the inner and outer support components of the main structure 1 is greater than the top elevation of the ring beam and eaves trough 2, and the height of the second vertical rod 9 of the outer support component is not less than twice the height of the second vertical rod 9 of the inner support component.

[0025] The outer sleeve 6 is provided with a through hole, and the wired steel bar 5 is provided with a corresponding threaded hole. The outer sleeve 6 and the wired steel bar 5 are connected to the threaded hole of the steel bar by a positioning bolt 61 passing through the through hole. The detachable design allows for reuse in the future, further reducing construction costs.

[0026] A construction method for an operating platform used in the construction of the lower ring beam and eaves gutter of a shallow circular silo includes the following steps: Step 1: During the binding of the reinforcing cage of the main structure 1, the binding of the fixing reinforcing bars 3 must be carried out simultaneously. The location of the fixing reinforcing bars 3 should strictly correspond to the design points below the ring beam and eaves gutter 2, and it must be ensured that they are firmly bound to the reinforcing cage of the main structure 1. Since the embedded components need to be arranged in a circular array on the main structure 1, the fixing reinforcing bars also need to be bound according to the circular array layout to ensure that the spacing between each fixing reinforcing bar is uniform. At the same time, considering the welding stability of the threaded sleeve 4 later, the binding of the fixing reinforcing bars 3 should ensure that it has sufficient rigidity to avoid displacement during subsequent construction. Step 2: After the fixing reinforcing bars 3 are tied, weld the threaded sleeve 4 onto the fixing reinforcing bars 3. During welding, ensure that the threaded sleeve 4 and the fixing reinforcing bars 3 are tightly connected to guarantee the connection strength. Since the fixing reinforcing bars 3 are symmetrically arranged on both sides of the threaded sleeve 4 in the vertical direction, pay attention to the center position of the threaded sleeve 4 and its relative position to the two fixing reinforcing bars 3 during welding to ensure that the threaded sleeve 4 is in the correct installation posture. After welding, temporarily seal the opening of the threaded sleeve 4 in a timely manner, using a special sealing plug or wrapping it with plastic sheeting, to prevent concrete from entering the threaded sleeve 4 and causing blockage during subsequent concrete pouring. Then, carry out concrete pouring operations according to the concrete pouring process of the main structure 1. During the pouring process, pay attention to protecting the embedded threaded sleeve 4 and fixing reinforcing bars to avoid displacement or damage due to the impact of concrete. Step 3: After the concrete of the main structure 1 reaches the design strength, remove the temporary sealant from the opening of the threaded sleeve 4, clean the debris inside the threaded sleeve 4, and ensure the threads are unobstructed. Connect the threaded steel bar 5 to the threaded sleeve 4 using threaded drive, ensuring a tight connection when screwing it in.

[0027] Subsequently, the fasteners used to connect the first vertical rod 8 are pre-installed at appropriate positions on the wire-reinforced steel bar 5. Next, the outer sleeve 6 is connected to the wire-reinforced steel bar 5. The connection between the outer sleeve 6 and the wire-reinforced steel bar 5 can be achieved by positioning bolts 61. That is, after aligning the through hole provided on the outer sleeve 6 with the corresponding threaded hole provided on the wire-reinforced steel bar 5, the positioning bolts 61 are passed through the through hole and threaded into the threaded hole of the wire-reinforced steel bar 5, thereby achieving a firm connection between the two. The overlap length between the outer sleeve 6 and the wire-reinforced steel bar 5 is not less than 2 / 3 of the length of the wire-reinforced steel bar 5.

[0028] The strut 7 is connected to the outer sleeve 6 using fasteners. The strut 7 is arranged according to the stress requirements of the support assembly to ensure it can provide sufficient support for the operating platform. Then, the first vertical rod 8 is connected to the pre-installed fastener on the wired steel bar 5 using fasteners. The free end of the strut 7 is connected to the first vertical rod 8 using fasteners. The other end of the first vertical rod 8 is pre-connected to the wired steel bar 5 using fasteners, forming a stable triangular support structure and further enhancing the stability of the support assembly.

[0029] Subsequently, the second vertical rod 9 is connected to the end of the outer sleeve 6 away from the pre-embedded component by a fastener for later installation of the dense mesh net 11.

[0030] Following the steps described above, install the inner and outer support components of the main structure 1 respectively. Both the inner and outer support components must be arranged in a circular array to ensure the overall stability and force balance of the operating platform. Step 4: After the support components on the inner and outer sides of the main structure 1 are installed, connect the scaffolding planks 10 to the support components arranged in a circular array. The scaffolding planks 10 should be laid to ensure a firm connection with the support components, which can be achieved by binding or using special connectors. The overlap length between scaffolding planks 10 should be no less than 200mm, and the overlap should be secured with no fewer than two binding points to avoid gaps or loosening. Since the support components are installed on both the inner and outer sides of the main structure 1, scaffolding planks 10 need to be laid on the support components on both the inner and outer sides to form a complete circular operating platform, meeting the operational needs of different positions during the construction of the ring beam and eaves gutter 2. Step 5: After completing the construction of the operating platform, install a dense mesh net 11 around the second vertical rods 9 of the inner and outer support components of the main structure 1. The height of the dense mesh net 11 should meet the safety protection requirements. Specifically, the top elevation of the second vertical rods 9 of the inner and outer support components of the main structure 1 must be greater than the top elevation of the ring beam and eaves gutter 2, and the height of the second vertical rods 9 of the outer support components must be at least twice the height of the second vertical rods 9 of the inner support components. The connection of the dense mesh net 11 should be firm and reliable to ensure that it can effectively play a safety protection role, preventing construction personnel from falling from the operating platform and also preventing debris from falling.

[0031] Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Based on the technical solutions of the present invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present invention.

Claims

1. An operating platform for the construction of a ring beam and eaves gutter under a shallow circular silo, comprising a main structure (1) and a ring beam and eaves gutter (2), wherein the ring beam and eaves gutter (2) are disposed on the top of the main structure (1), characterized in that: It also includes embedded components and support components. The embedded components are set below the ring beam and eaves gutter (2). The embedded components include fixed steel bars and threaded sleeves (4). The fixed steel bars are tied to the steel bar skeleton of the main structure (1). The threaded sleeves (4) are welded to the fixed steel bars. The support components include wired steel bars (5) and outer sleeves (6). The wired steel bars (5) are threadedly connected to the threaded sleeves (4). The outer sleeves (6) are connected to the wired steel bars (5). The outer sleeves (6) are connected to the struts (7) by fasteners. The embedded components and support components are arranged in a circular array on the main structure (1). The support components are equipped with scaffolding boards (10).

2. The operating platform for the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 1, characterized in that, The pre-embedded components and support components are arranged in a circumferential array on both the inner and outer sides of the main structure (1).

3. The operating platform for the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 1, characterized in that, The fixed reinforcing bars are symmetrically arranged on both sides of the threaded sleeve (4) in the vertical direction.

4. The operating platform for the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 1, characterized in that, The free end of the support rod (7) is connected to the first vertical rod (8) by a fastener, and the other end of the first vertical rod (8) is connected to the wired steel bar (5) by a fastener.

5. The operating platform for the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 1, characterized in that, The outer sleeve (6) is connected to a second vertical rod (9) at the end away from the pre-embedded component by a fastener, and a dense mesh (11) is arranged around the multiple second vertical rods (9).

6. The operating platform for the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 5, characterized in that, The top elevation of the second vertical rod (9) of the inner and outer support components of the main structure (1) is greater than the top elevation of the ring beam and eaves gutter (2), and the height of the second vertical rod (9) of the outer support component is not less than twice the height of the second vertical rod (9) of the inner support component.

7. The operating platform for construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 1, characterized in that, The outer tube (6) is provided with a through hole, and the wired steel bar (5) is provided with a corresponding threaded hole. The outer tube (6) and the wired steel bar (5) are connected in the threaded hole of the steel bar by means of a positioning bolt (61) passing through the through hole.

8. A construction method for an operating platform used in the construction of the lower ring beam and eaves gutter of a shallow circular silo, characterized in that, Includes the following steps: Step 1: When tying the steel cage of the main structure (1), tie the fixing steel bars (3) at the same time. Step 2: Weld the threaded sleeve (4) to the fixed reinforcing bar (3) and temporarily seal the opening of the threaded sleeve (4), then set up the formwork and pour concrete; Step 3: After the concrete reaches its strength, remove the temporary seal, screw the wired steel bar (5) onto the threaded sleeve (4), install the fastener on the wired steel bar (5) in advance to connect the first vertical rod (8), connect the outer sleeve (6) to the wired steel bar (5), connect the support rod (7) through the fastener, then connect the first vertical rod (8) through the fastener, and finally connect the second vertical rod (9) to the end of the outer sleeve (6) away from the pre-embedded component through the fastener. Complete the installation of all support components inside and outside the main structure (1) according to the above steps; Step 4: Connect the springboard (10) to the support components set in the circular array to form an operating platform; Step 5: Install a dense mesh net (11) around the inner and outer second vertical rods (9).

9. The construction method for the operating platform used in the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 8, characterized in that, In step 3, the lap length between the outer sleeve (6) and the wired steel bar (5) is not less than 2 / 3 of the length of the wired steel bar (5).

10. The construction method for the operating platform used in the construction of the lower ring beam and eaves gutter of a shallow circular silo according to claim 8, characterized in that, In step 4, the overlap length between two adjacent planks (10) shall not be less than 200mm, and the overlap shall be fixed with no less than two binding points.

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