Cast-in-place concrete square bin top plate reverse supporting platform device

Abstract

The utility model relates to the technical field of building construction, in particular to a cast-in-place concrete square bin top plate reverse supporting platform device which comprises a bin wall embedded part, a formwork supporting steel pipe, a bin wall supporting rod, a top plate formwork and a formwork system. A formwork supporting steel pipe is welded and fixed to the end, away from the silo wall, of the silo wall embedded part and connected with the top plate formwork through a fastener. The formwork system is composed of a main keel, a secondary keel and a formwork which are sequentially laid on the top of the frame body from bottom to top. The upper end of the top plate formwork abuts against the main keel through a U-shaped support. The cast-in-place concrete square bin top plate reverse supporting platform device is high in material repeated utilization rate, good in safety guarantee, capable of improving construction efficiency and solving the problems of poor stability, material waste, potential safety hazards and the like of a traditional supporting system, and particularly suitable for construction of top plates of cast-in-place concrete structures such as silos and vertical shafts.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a reverse support platform device for the top slab of a cast-in-place concrete silo. Background Technology

[0002] In cast-in-place concrete construction, the stability of the formwork support system directly affects construction safety and the quality of concrete forming. Traditional support devices often employ full-span scaffolding or temporary welded fixing methods. This traditional approach has the following problems:

[0003] 1. The construction period is long. The frame needs to be erected from the bottom of the silo. The amount of work involved is large, the construction is difficult, and the construction period is hard to guarantee.

[0004] 2. Poor stability; the frame is prone to lateral displacement under load, which leads to formwork deformation and affects the dimensional accuracy of the concrete structure.

[0005] 3. Material waste is serious. The frame structure built from the bottom to the top of the warehouse is large and difficult to turn around, resulting in a large amount of non-physical materials being used.

[0006] 4. Significant safety hazards exist. The excessive height-to-width ratio of the frame structure fails to meet the load-bearing requirements, making it prone to overturning and collapse. The small internal space of the silos and cubicles cannot provide space for material storage and personnel operations.

[0007] 5. Construction quality cannot be guaranteed. During the erection process, it is necessary to drill holes in the warehouse wall to pre-embed wall ties, which makes sealing difficult later and increases the risk of leakage.

[0008] Therefore, we propose a reverse support platform device for the top slab of a cast-in-place concrete silo. Utility Model Content

[0009] The main purpose of this utility model is to provide a reverse support platform device for the top slab of a cast-in-place concrete silo, which can effectively solve the problems in the background art.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A cast-in-place concrete silo roof support platform device includes silo wall embedded parts, formwork support steel pipes, silo wall support rods, a roof formwork frame, and a template system. The silo wall embedded parts are pre-embedded into the silo wall. The end of the silo wall embedded parts away from the silo wall is welded and fixed to the formwork support steel pipe, which is connected to the roof formwork frame via fasteners. The template system consists of main keels, secondary keels, and templates laid sequentially on the top of the frame from bottom to top. The upper end of the roof formwork frame is secured to the main keels by U-shaped supports. The upper left and right ends of the roof formwork frame are secured to the silo wall by U-shaped supports. The lower part of the roof formwork frame is inclined at 45 degrees to the silo wall support rods via steel wire ropes to form a reverse suspension structure. A silo operation platform is provided at the lower part of the roof formwork frame.

[0012] Preferably, the top plate formwork is made up of several horizontal and vertical steel pipes fixed together by fasteners, and the longitudinal steel pipes have a span of ≤1.2m, and the outermost steel pipes have a 30-50cm operating distance reserved between them and the warehouse wall.

[0013] Preferably, the silo wall support rod is vertically embedded into the silo wall through a pre-embedding method, with the upper part of the silo wall support rod exposed.

[0014] Preferably, the operation platform of the container is equipped with 50mm thick wooden planks and a 600mm×600mm access hole is reserved.

[0015] Preferably, the main keel is composed of two steel pipes arranged side by side; the secondary keel is a square steel pipe laid vertically along the main keel; and the template is 15mm thick plywood.

[0016] Preferably, the embedded part of the silo wall is a φ20 grade III steel bar head, and the exposed end is kept flat during the embedding process, with a welding length ≥100mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model provides a reverse support platform device for the top slab of cast-in-place concrete silo. It adopts a modular design and is connected by quick-release fasteners, eliminating the need for on-site welding, which greatly shortens the construction cycle and improves construction efficiency.

[0019] 2. This utility model provides a reverse support platform device for the top slab of a cast-in-place concrete silo, which uses inclined steel wire ropes and silo wall support rods to form a reverse suspension, and uses U-shaped brackets to connect and fix the frame to the silo wall to suppress the displacement of the frame;

[0020] 3. This utility model provides a reverse support platform device for the top slab of a cast-in-place concrete silo. It has a small construction scale, starting from the top of the silo and going downwards. Only one layer of frame needs to be erected, which reduces the construction difficulty, reduces the amount of non-solid materials used, saves costs, and reduces carbon emissions.

[0021] 4. This utility model provides a reverse support platform device for the top slab of cast-in-place concrete silo. The device has a simple structure, is easy to install, and has high safety assurance. During erection, multiple fixings are used to ensure that the frame does not shift. It provides a construction platform for silo top construction while ensuring the safety of construction personnel. Attached Figure Description

[0022] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 2 A schematic diagram showing the welding of the formwork support steel pipes to the embedded parts of the warehouse wall;

[0024] Figure 3 This is an enlarged view of the connection node between the bidirectional U-shaped bracket and the main keel.

[0025] In the diagram: 1. Embedded parts for the warehouse wall; 2. Steel pipes supporting the formwork frame; 3. U-shaped support; 4. Square warehouse operating platform; 5. Warehouse wall support rod; 6. Top plate formwork frame; 7. Steel wire rope; 8. Main keel; 9. Secondary keel; 10. Formwork; 11. Formwork system. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Please see Figures 1-3 This utility model provides a technical solution:

[0028] A cast-in-place concrete silo top slab reverse support platform device includes a silo wall embedded part 1, a formwork support steel pipe 2, a silo wall support rod 5, a top slab formwork 6, and a template system 11. The silo wall embedded part 1 is embedded into the silo wall by pre-embedding. The end of the silo wall embedded part 1 away from the silo wall is welded and fixed to the formwork support steel pipe 2. The formwork support steel pipe 2 is connected to the top slab formwork 6 by fasteners.

[0029] The template system 11 consists of main keel 8, secondary keel 9, and template 10 laid sequentially from bottom to top on the top of the frame. The upper end of the top plate formwork 6 is secured to the main keel 8 by U-shaped supports 3. The upper left and right ends of the top plate formwork 6 are secured to the silo wall by U-shaped supports 3 to prevent displacement. The lower part of the top plate formwork 6 is connected to the silo wall support rod 5 at a 45-degree angle by steel wire rope 7 to form a reverse suspension structure, creating a two-way constraint to suppress lateral displacement of the frame and improve stability. A square silo operation platform 4 is set at the lower part of the top plate formwork 6. The top plate formwork 6 is made up of several horizontal and vertical steel pipes fixed together by fasteners, with the longitudinal steel pipe span ≤1.2m and the outermost steel pipe leaving a 30-50cm operation gap with the silo wall. The silo wall support rod 5 is vertically embedded into the silo wall by pre-embedding, with the upper part of the silo wall support rod 5 exposed. A 50mm thick wooden plank is laid on the square silo operation platform 4, with a 600mm×600mm plank reserved. The access opening is for people; the main keel 8 consists of two 48×3mm steel pipes installed side by side; the secondary keel 9 consists of 40×40×3mm square steel pipes laid vertically along the main keel 8; the formwork 10 is 15mm thick plywood; the silo wall embedded part 1 is a φ20 grade III steel rebar head, and the exposed end is kept flat during pre-embedding, with a welding length ≥100mm.

[0030] It should be noted that this utility model is a reverse support platform device for the top slab of a cast-in-place concrete silo. When the silo is slide-raised to the designed top elevation, a silo wall embedded part 1 of φ20 grade III steel is pre-embedded. After the silo slide-raising stage is completed, the formwork support steel pipe 2 is fully welded to the silo wall embedded part 1. After the welding is completed, a strength test is performed, and the next process can only be carried out after the test is passed.

[0031] When installing the main frame, first determine the position of the top plate formwork 6. After determining the position, use the U-shaped bracket 3 to tighten the top plate formwork horizontally to the predetermined position of the warehouse wall. Then, use the snap fasteners to connect all the top plate formwork 6 and the formwork support steel pipe 2 according to the drawings to complete the main frame erection.

[0032] After the main structure is erected, 50mm thick wooden planks are laid on the lower part of the horizontal top plate formwork 6 to form a square warehouse operation platform 4. A 600mm×600mm access opening is reserved to facilitate subsequent installation and silo inner wall construction. At the same time, the silo wall support rod 6 and the top plate formwork 6 are connected by 14# steel wire rope 8 to form a reverse suspension, which effectively avoids the frame from swaying and improves the safety of the device.

[0033] Finally, install the U-shaped bracket 3 on the upper end of the top plate formwork 6 and tighten the main keel 8. Then lay the secondary keel 9 and the wooden template 10 in sequence. To ensure the load-bearing capacity, the main keel uses 48×3mm double steel pipes, the secondary keel uses 40×40×3mm square steel pipes, and the template can use 15mm plywood.

[0034] After the scaffolding is completed, workers can walk on top of the silo, significantly reducing the safety risks of working at heights. It also provides space for material storage, which not only reduces hoisting costs but also improves construction efficiency. Workers can enter the scaffolding through the access holes in the formwork and use the silo operation platform to provide a safe working space inside the silo to complete their work.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place concrete silo roof support platform device, comprising silo wall embedded parts (1), formwork support steel pipes (2), silo wall support rods (5), roof formwork frame (6), and formwork system (11), characterized in that: The pre-embedded part (1) of the warehouse wall is embedded into the warehouse wall by pre-embedding. The end of the pre-embedded part (1) away from the warehouse wall is welded and fixed with a mold support steel pipe (2). The mold support steel pipe (2) is connected to the top plate mold frame (6) by fasteners. The template system (11) consists of a main keel (8), a secondary keel (9) and a template (10) laid sequentially from bottom to top on the top of the frame; The upper end of the top plate formwork (6) is pressed against the main keel (8) by U-shaped brackets (3). The upper left and upper right ends of the top plate formwork (6) are pressed against the warehouse wall by U-shaped brackets (3). The lower part of the top plate formwork (6) is inclined at 45 degrees to the warehouse wall support rod (5) by steel wire ropes (7) to form a reverse suspension structure. A square warehouse operation platform (4) is provided at the lower part of the top plate formwork (6).

2. The anti-support platform device for the top slab of a cast-in-place concrete silo according to claim 1, characterized in that: The top plate formwork (6) is made up of several horizontal and vertical steel pipes connected together by fasteners, and the longitudinal steel pipe span is ≤1.2m, and the outermost steel pipe is reserved with an operating distance of 30-50cm from the warehouse wall.

3. The anti-support platform device for the top slab of a cast-in-place concrete silo according to claim 1, characterized in that: The silo wall support rod (5) is vertically embedded into the silo wall by pre-embedding, and the upper part of the silo wall support rod (5) is exposed.

4. The anti-support platform device for the top slab of a cast-in-place concrete cubicle according to claim 1, characterized in that, The container operation platform (4) is covered with 50mm thick wooden planks, and a 600mm×600mm access hole is reserved.

5. The anti-support platform device for the top slab of a cast-in-place concrete cubicle according to claim 1, characterized in that, The main keel (8) consists of two steel pipes arranged side by side; the secondary keel (9) consists of square steel pipes laid vertically along the main keel (8); the template (10) is a 15mm thick plywood.

6. The anti-support platform device for the top slab of a cast-in-place concrete silo according to claim 1, characterized in that, The embedded part (1) of the warehouse wall is a φ20 grade III steel bar head. When embedded, the exposed end is kept flat and the welding length is ≥100mm.

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