Shallow silo thin-shell type concrete structure umbrella stand device and operation method

Abstract

The invention discloses a squat silo thin-shell type concrete structure umbrella stand device and an operation method.The umbrella stand structure comprises a core umbrella stand, an umbrella stand framework and a bracket device, the core umbrella stand is connected with the umbrella stand framework through a pin shaft, and the umbrella stand framework is connected with the bracket device through a support base plate; the corbel device and the silo wall are connected through embedded bolts, the umbrella frame framework and the core umbrella frame are connected through pin shafts, the radiation bottom ribs are connected through turnbuckles, the corbel device comprises the embedded bolts, connecting steel plates and supporting batter posts, the embedded bolts are sleeved with the connecting steel plates in the construction period of the silo wall, and the corbel is machined in a manufacturer. A tower crane and other vertical transportation equipment are adopted for installation on site. The steel structure umbrella stand is of an integral structure, displacement settlement is small, use of a large crane is avoided in the installation process, the steel structure umbrella stand has great advantages for buildings with limited sites, and the construction time is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field, and in particular relates to a shallow silo thin-shell concrete structure umbrella stand device and an operating method. Background Art

[0002] In order to adapt to the national development and strategic needs, all parts of the country responded to the call and set off a wave of warehouse construction. Among them, shallow round silos have the advantages of small unit grain storage area, reasonable structural force, good airtightness, strong earthquake resistance, and high degree of mechanization. They have gradually replaced bungalow warehouses and become the first choice for grain storage buildings. Shallow round silos are difficult to construct, with high requirements for verticality and airtightness, and high construction risks, so higher requirements are placed on construction technology. The silo roof structure has a large span, thin concrete, high top, and inclined slope, making construction very difficult. The umbrella support system effectively solves the above construction problems. Summary of the invention

[0003] In order to overcome the technical problems of high construction risk and great construction difficulty of large-span thin-shell reinforced concrete structures in the prior art, the present invention provides an umbrella frame device and an operation method for a shallow cylindrical silo thin-shell concrete structure, which solves the above technical problems.

[0004] A shallow circular silo thin-shell concrete structure umbrella frame device, the umbrella frame structure comprises a core umbrella frame, an umbrella frame frame and a corbel device, the core umbrella frame and the umbrella frame frame are connected by a pin shaft, the umbrella frame frame and the corbel device are connected by a support pad, and the corbel device and the silo wall are connected by embedded bolts. The core umbrella frame comprises an outer support beam, an inner support beam and a support column, the outer support beam and the inner support beam are channel steels, and are fastened to the support columns by high-strength bolts, and the support columns are double-jointed channel steels.

[0005] The umbrella frame skeleton includes a transition beam, an upper oblique connecting rod, a lower oblique connecting rod and a radiating bottom reinforcement. The transition beam of the umbrella frame skeleton is a standard steel section, the upper oblique connecting rod and the lower oblique connecting rod are steel columns, the radiating bottom reinforcement is made of large-diameter steel bars, the transition beam and the oblique connecting rod are connected with high-strength bolts, and the core umbrella frame is connected with a pin shaft, and the radiating bottom reinforcement is connected with a basket screw.

[0006] The corbel device includes embedded bolts, connecting steel plates and supporting inclined columns. The embedded bolts are embedded in bolt sleeves during the construction of the warehouse wall. The corbel is processed by the manufacturer and installed on site using vertical transportation equipment such as tower cranes.

[0007] A construction method for a shallow silo thin-shell concrete structure umbrella stand device, the construction method comprising the following steps:

[0008] S1: Construction preparation: The warehouse wall construction is completed, the core umbrella frame, umbrella frame frame and embedded parts are processed in the factory and transported to the construction site for acceptance;

[0009] S2: Assembly of the core umbrella frame: First, use a tower crane or vertical transportation equipment to assemble the core umbrella frame, assemble the bottom outer support beam and inner support beam, then install the four support columns on the four sides, then construct the remaining support beams, and finally splice the remaining support columns;

[0010] S3: Assembling the umbrella frame: After the core umbrella frame is installed, install the top transition beam. First install the top straight section and the upper inclined connecting rod, then install the oblique transition beam and the lower inclined connecting rod. All are connected with pins. Finally, the radial bottom reinforcement is constructed. The radial bottom reinforcement is connected with the core umbrella frame and the transition beam with basket screws and pins.

[0011] S4: Safety net installation: Safety nets are installed at the top and bottom of the umbrella stand;

[0012] S5: Umbrella stand hoisting: Use special stirrup hoists to hoist the umbrella stand to the designed height. After the operators install the corbels in place, the umbrella stand can be lowered as a whole and fixed at the corbels;

[0013] S6: After installation in place, carry out top formwork support and concrete structure construction.

[0014] In general, compared with the prior art, the above technical scheme conceived by the present invention can achieve the following beneficial effects: the support system of the umbrella stand device is evenly stressed to avoid stress concentration; the bracket adopts steel structure engineering and is assembled on the ground at the factory processing site, with reliable quality and maximum protection for the safety of operators; the steel structure umbrella stand is an integral structure with small displacement and settlement, avoiding the use of large cranes, which has great advantages for buildings with limited space, reducing construction costs and shortening construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 This is an expanded view of the core umbrella frame of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the umbrella frame of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the corbel of the present invention;

[0019] Figure 4 It is the internal connection node diagram of the umbrella frame skeleton of the present invention;

[0020] Figure 5 It is a connection node diagram of the umbrella frame skeleton and the core umbrella frame of the present invention;

[0021] Figure 6It is the connection node diagram of the umbrella frame and the corbel of the present invention;

[0022] In the figure: 1-core umbrella frame, 2-umbrella frame skeleton, 3-corbel device, 11-external support beam, 12-inner support beam, 13-support column, 21-transition beam; 22-upper inclined connecting rod, 23-lower inclined connecting rod, 24-radial bottom rib, 31-embedded bolt, 32-connecting steel plate, 33-support inclined column, 4-pin shaft, 5-high-strength bolt, 6-basket screw, 7-corbel. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, it is a schematic diagram of the overall structure of a shallow silo thin-shell concrete structure umbrella frame device and an operating method of the present invention, which includes a core umbrella frame 1, an umbrella frame frame 2 and a corbel device 3. The core umbrella frame 1 and the umbrella frame frame 2 are connected by a pin 4, the umbrella frame frame 2 and the corbel device 3 are connected by a support pad, and the corbel device 3 and the silo wall are connected by embedded bolts 31;

[0024] like Figure 1 As shown, it is the unfolded view of the core umbrella frame 1 of the present invention. The core umbrella frame 1 comprises an outer support beam 11, an inner support beam 12 and a support column 13. The outer support beam 11 and the inner support beam 12 are channel steels, which are fastened to the support columns 13 with high-strength bolts 5. The support columns 13 are double-jointed channel steels.

[0025] like Figure 2 As shown, it is a schematic diagram of the structure of the umbrella frame skeleton 2 of the present invention. The umbrella frame skeleton 2 includes a transition beam 21, an upper oblique connecting rod 22, a lower oblique connecting rod 23 and a radiating bottom rib 24. The transition beam 21 of the umbrella frame skeleton 2 is a standard steel, the upper oblique connecting rod 22 and the lower oblique connecting rod 23 are steel columns, the radiating bottom rib 24 is a large-diameter steel bar, the transition beam 21 and the oblique connecting rod are connected by high-strength bolts, and are connected to the core umbrella frame 1 by a pin shaft 4, and the radiating bottom ribs are connected by a basket screw 6.

[0026] like Figure 3 As shown, it is a schematic diagram of the structure of the corbel 3 of the present invention. The corbel device 3 includes embedded bolts 31, a connecting steel plate 32 and a supporting inclined column 33. The embedded bolts 31 are embedded in bolt sleeves during the construction of the warehouse wall. The corbel 7 is processed by the manufacturer and installed on site using vertical transportation equipment such as a tower crane.

[0027] A construction method for a shallow silo thin-shell concrete structure umbrella stand device, the construction method comprising the following steps:

[0028] S1: Construction preparation: The warehouse wall construction is completed, the core umbrella frame 1, umbrella frame frame 2 and embedded parts are processed in the factory and transported to the construction site for acceptance;

[0029] S2: Assembling the core umbrella frame 1: First, use a tower crane or vertical transportation equipment to assemble the core umbrella frame 1, assemble the bottom outer support beam 11 and the inner support beam 12, then install the four support columns 13 on the four sides, then construct the remaining support beams, and finally splice the remaining support columns 13;

[0030] S3: Assemble the umbrella frame 2. After the core umbrella frame 1 is installed, install the top transition beam 21. First install the top straight section and the upper inclined connecting rod 22, then install the oblique transition beam 21 and the lower inclined connecting rod 23. All are connected by the pin 4. Finally, the radial bottom rib 24 is constructed. Figure 4 As shown in FIG. 1 , it is a diagram of the internal connection nodes of the umbrella frame 2. The radial bottom rib 24 is connected to the core umbrella frame 1 and the transition beam 21 by using a basket screw 6 and a pin 4. Figure 5 As shown, it is a connection node diagram of the umbrella frame skeleton 2 and the core umbrella frame 1;

[0031] S4: Safety net installation: Safety nets are installed at the top and bottom of the umbrella stand;

[0032] S5: Umbrella stand hoisting: Use special stirrup hoist to hoist the umbrella stand to the designed height. After the operator installs the bracket 7 in place, the umbrella stand can be lowered as a whole and fixed at the bracket 7. Figure 6 As shown, it is a connection node diagram of the umbrella frame 2 and the corbel 7;

[0033] S6: After installation in place, carry out top formwork support and concrete structure construction.

Claims

1. A shallow silo thin shell concrete structure umbrella stand device, characterized in that: The umbrella frame structure comprises a core umbrella frame (1), an umbrella frame frame (2) and a corbel device (3); the core umbrella frame (1) and the umbrella frame frame (2) are connected by a pin shaft (4); the umbrella frame frame (2) and the corbel device (3) are connected by a support pad; and the corbel device (3) and the warehouse wall are connected by embedded bolts (31); The core umbrella frame (1) comprises an outer support beam (11), an inner support beam (12) and a support column (13); The umbrella frame frame (2) comprises a transition beam (21), an upper oblique connecting rod (22), a lower oblique connecting rod (23) and a radiating bottom rib (24); the transition beam (21) of the umbrella frame frame (2) is a standard steel, and the upper oblique connecting rod (22) and the lower oblique connecting rod (23) are steel columns; The bracket device (3) comprises embedded bolts (31), connecting steel plates (32) and supporting inclined columns (33). The embedded bolts (31) are embedded in bolt sleeves during the construction of the warehouse wall. The bracket (7) is processed by the manufacturer and installed on site using vertical transportation equipment such as a tower crane.

2. A shallow silo thin shell concrete structure umbrella stand device according to claim 1, characterized in that: The outer support beam (11) and the inner support beam (12) are channel steels, and are fastened to the support columns (13) by high-strength bolts (5); the support columns (13) are double-jointed channel steels.

3. The shallow silo thin shell concrete structure umbrella stand device according to claim 1, characterized in that: The radial bottom reinforcement (24) is made of large diameter steel bars, is connected to the transition beam (21) and the oblique connecting rod using high-strength bolts, is connected to the core umbrella frame (1) using a pin shaft (4), and is connected to the radial bottom reinforcement (24) using a basket screw (6).

4. The construction method of a shallow silo thin-shell concrete structure umbrella stand device according to any one of claims 1 to 3, characterized in that: The construction method includes the following steps: S1: Construction preparation: The warehouse wall construction is completed, the core umbrella frame (1), umbrella frame frame (2) and embedded parts are processed in the factory and transported to the construction site for acceptance; S2: Assembling the core umbrella frame (1): first assemble the core umbrella frame (1) using a tower crane or vertical transportation equipment, assemble the bottom outer support beam (11) and the inner support beam (12), then install the four support columns (13) on the four sides, then construct the remaining support beams, and finally splice the remaining support columns (13); S3: Assembling the umbrella frame (2): After the core umbrella frame (1) is installed, the top receiving transition beam (21) is installed. First, the top straight section and the upper inclined connecting rod (22) are installed, and then the inclined receiving transition beam (21) and the lower inclined connecting rod (23) are installed. All are connected by a pin shaft (4). Finally, the radial bottom rib (24) is constructed. The radial bottom rib (24) is connected to the core umbrella frame (1) and the receiving transition beam (21) by a basket screw (6) and a pin shaft (4); S4: Safety net installation: Safety nets are installed at the top and bottom of the umbrella stand; S5: Umbrella stand hoisting: Use a special stirrup hoist to hoist the umbrella stand to the designed height. After the operator installs the bracket (7) in place, the umbrella stand can be lowered as a whole and fixed at the bracket (7); S6: After installation in place, carry out top formwork support and concrete structure construction.

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