Construction method for external gutter of conical top plate of squat silo

Abstract

A construction method for an externally-hung gutter of a conical top plate of a squat silo is characterized by comprising the following steps that a, a plurality of supports are manufactured, b, after sliding formwork construction of the wall of the squat silo is completed and a sliding formwork tool is dismantled, short rods of L-shaped rods penetrate through pre-embedded sleeves of the wall of the squat silo and then are locked through nuts, c, a platform is erected between every two adjacent supports through wood springboards, and a gutter is formed. D, the adjacent vertical rods are erected to form a protective barrier; e, a full-frame scaffold of the external gutter is erected on the wood springboard, and an external gutter bottom die is erected on the full-frame scaffold. The construction method for the external gutter of the conical top plate of the squat silo has the advantages that the support is simple in structure and convenient to manufacture, the support is a customized component and can be recycled, the turnover utilization rate is high, the construction cost is reduced, and the support can replace a slip form platform to serve as an operation platform.

Description

Technical Field

[0001] The invention relates to a method for constructing a gutter, in particular to a method for constructing a gutter externally mounted on a conical top plate of a shallow silo. Background Art

[0002] Since the founding of the People's Republic of China, my country's grain silo planning and construction have advanced continuously, with storage capacity further increasing, facilities continuously improving, and the ability to safely store grain continuously strengthening. However, grain storage safety still faces some challenges, such as insufficient grain storage capacity and outdated facilities in some areas, relatively backward grain and oil storage and logistics facilities, high costs, low efficiency, high losses, and significant risks associated with outsourced storage. With China National Grain and Oils Corporation launching its largest-scale silo construction project, state-owned enterprises will further replace private enterprises in expanding silo storage capacity. This has led to an increasing number of silo construction projects, with shallow silo projects accounting for a significant share. Improving the efficiency of shallow silo construction is particularly important.

[0003] The traditional construction method uses a slipform platform as an operating platform for external gutter construction. The slipform platform can only be removed when the external gutter construction is complete and reaches the required strength for demoulding. This construction method has the disadvantages of a long slipform rental period and high construction costs.

[0004] Therefore, the construction method of the known external gutter has the above-mentioned inconveniences and problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a safe and reliable construction method for external guttering of a conical roof of a shallow silo.

[0006] To achieve the above objectives, the technical solution of the present invention is: A method for constructing an external gutter of a conical roof of a shallow silo, characterized by comprising the following steps: a. Prepare several brackets, each of which is an atypical right-angle bracket. The middle portion of the upright right-angle side of the right-angle bracket is fixedly connected to the horizontal side of the right-angle bracket in a T-shape. The end of the horizontal side of the right-angle bracket is vertically provided with a vertical rod. The upright right-angle side is parallel to the vertical rod. The upright right-angle side is fixedly connected to the long rod of the L-shaped rod, and the short rod of the L-shaped rod is longer than the top of the upright right-angle side. The right-angle bracket is provided with a diagonal brace. The short rod of the L-shaped rod is threaded and equipped with a nut and a gasket. b. After the slipform construction of the shallow silo wall is completed and the slipform tools are removed, the short rod of the L-shaped rod is passed through the pre-buried sleeve in the shallow silo wall and locked with a nut. The bracket is set at an interval of 5° with the center of the shallow silo as the reference point; c. Use wooden springboards to build platforms between adjacent supports, and fix the wooden springboards and the horizontal sides of the right-angle supports together with wires to form a circular operating platform; d. Adjacent poles are erected to form protective railings; e. Set up a full-length scaffolding for the external gutter on the wooden springboard, set up the external gutter bottom formwork on the full-length scaffolding, and complete the binding of the external gutter reinforcement according to the drawing requirements; install the external gutter side formwork, use tension screws to reinforce the external gutter formwork, and ensure the thickness of the steel bar protective layer; f. After the external gutter concrete pouring is completed and the curing reaches the designed strength, the external gutter formwork is removed and the construction tools of the shallow silo conical top plate external gutter are removed, thus completing the external gutter construction.

[0007] The construction method of the shallow silo conical roof external gutter of the present invention can also be further implemented by adopting the following technical measures.

[0008] In the aforementioned method, the material specification of the vertical right-angled edge is ≥20# channel steel.

[0009] In the aforementioned method, the material specification of the horizontal side of the right-angle bracket is ≥Φ48*3 steel pipe.

[0010] In the aforementioned method, the specification of the diagonal bracing rod is ≥Φ48*3 steel pipe.

[0011] In the aforementioned method, the specification of the L-shaped rod is ≥Φ20 round steel.

[0012] After adopting the above technical solution, the construction method of the shallow silo conical roof external gutter of the present invention has the following advantages: 1. The bracket has a simple structure and is easy to manufacture; 2. The bracket is a customized component and can be recycled. The turnover rate is high and the construction cost is reduced; 3. The bracket can replace the slipform platform as an operating platform, overcoming the shortcomings of long slipform rental period and high construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the use position of the bracket for the external gutter of the conical roof of a shallow silo according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the support structure of the external gutter of the conical roof of a shallow silo according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the placement of a bracket for a shallow silo with a conical roof and an external gutter according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the use status of the bracket for the external gutter of the conical roof of a shallow silo according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0015] Example 1 Please refer to Figures 1-4 The construction method of the shallow silo conical roof external gutter of the present invention comprises the following steps: 1. Make several brackets for the external gutters of the conical roof of the shallow silo. (1) Take a Φ20 round steel bar 1 with a length of 1780 mm and process it into an L-shaped rod.

[0016] (2) Take a 20# channel steel 2 with a length of 2000mm, a Φ48*3 steel pipe 3 with a length of 2000mm as a horizontal rod, a Φ48*3 steel pipe as a diagonal bracing rod, and a Φ48*3 steel pipe with a length of 2140mm as a vertical pipe 4.

[0017] (3) Weld the round steel 1, channel steel 2, steel pipe 3 as horizontal rod, diagonal brace and vertical pipe 4 together to form a bracket, and connect them to form a stable system.

[0018] 2. After the slipform construction of the shallow silo wall is completed and the slipform tools are removed, the hook of the Φ20 round steel 1 of the bracket must be passed through the embedded sleeve 10 and placed on the shallow silo wall 9. Lock it with nuts and washers. With the center of the shallow silo as the reference point, set one bracket every 5°, for a total of 72 brackets.

[0019] 3. Use wooden springboards 7 to build a platform between adjacent supports, fix the wooden springboards and horizontal steel pipes 3 (used to bear the load) together through 8# iron wire, and finally form a circular operating platform with the wooden springboards.

[0020] 4. Set up a guardrail perpendicular to the Φ48*3 steel pipe upright 4 (for protection) on the periphery of the bracket. The guardrail and the Φ48*3 steel pipe (for protection) are connected together through a rotating fastener.

[0021] 5. Build the full-frame scaffolding 5, the support frame for the external gutter, on top of the wooden plank. Set up the external gutter base formwork on top of the full-frame scaffolding. Tie the external gutter reinforcement according to the drawing. Install the side formwork for the external gutter 8. Use tensioning screws 6 to reinforce the formwork and ensure the thickness of the reinforcement cover.

[0022] 6. After the external gutter concrete pouring is complete and curing reaches the designed strength, the external gutter formwork is removed. The construction tools for the external gutter on the shallow silo conical roof are also removed. This completes the external gutter construction.

[0023] The present invention possesses substantial characteristics and significant technological advancements. The present invention's method for constructing an external gutter for a conical roof of a shallow silo utilizes a simple bracket fabrication method. The required materials are readily available, and customized components can be fabricated using readily available on-site Φ20 round steel, 20# channel steel, Φ48*3 steel pipe, and rotating fasteners. The bracket components are all customized and recyclable, resulting in a high turnover rate and reduced construction costs. The bracket can replace the slipform platform as an operating platform, overcoming the shortcomings of the long slipform rental period and high construction costs.

[0024] The above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Persons skilled in the art may make various modifications or variations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions are intended to fall within the scope of the present invention and are defined by the claims.

Claims

1. A construction method for a shallow silo with a conical roof and an external gutter, characterized in that The following steps are involved: a. Prepare several brackets, each of which is an atypical right-angle bracket. The middle portion of the upright right-angle side of the right-angle bracket is fixedly connected to the horizontal side of the right-angle bracket in a T-shape. The end of the horizontal side of the right-angle bracket is vertically provided with a vertical rod. The upright right-angle side is parallel to the vertical rod. The upright right-angle side is fixedly connected to the long rod of the L-shaped rod, and the short rod of the L-shaped rod is longer than the top of the upright right-angle side. The right-angle bracket is provided with a diagonal brace. The short rod of the L-shaped rod is threaded and equipped with a nut and a gasket. b. After the slipform construction of the shallow silo wall is completed and the slipform tools are removed, the short rod of the L-shaped rod is passed through the pre-buried sleeve in the shallow silo wall and locked with a nut. The bracket is set at an interval of 5° with the center of the shallow silo as the reference point; c. Use wooden springboards to build platforms between adjacent supports, and fix the wooden springboards and the horizontal sides of the right-angle supports together with wires to form a circular operating platform; d. Adjacent poles are erected to form protective railings; e. Set up a full-length scaffolding for the external gutter on the wooden springboard, set up the external gutter bottom formwork on the full-length scaffolding, and complete the binding of the external gutter reinforcement according to the drawing requirements; install the external gutter side formwork, use tension screws to reinforce the external gutter formwork, and ensure the thickness of the steel bar protective layer; f. After the external gutter concrete pouring is completed and the curing reaches the designed strength, the external gutter formwork is removed and the construction tools of the shallow silo conical top plate external gutter are removed, thus completing the external gutter construction.

2. The method for constructing a shallow silo conical roof external gutter according to claim 1, characterized in that: The material specification of the vertical right-angled edge is ≥20# channel steel.

3. The method for constructing a shallow silo conical roof external gutter according to claim 1, characterized in that: The material specification of the horizontal side of the right-angle bracket is ≥Φ48*3 steel pipe.

4. The method for constructing a shallow silo conical roof external gutter according to claim 1, characterized in that: The specification of the diagonal brace is ≥Φ48*3 steel pipe.

5. The method for constructing a shallow silo conical roof external gutter according to claim 1, characterized in that: The specification of the L-shaped rod is ≥Φ20 round steel.

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