Precise mounting device for main steel beam at top of silo

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a precise mounting device for a main steel beam at the top of a silo, which is characterized by comprising a channel steel surrounding frame, a portal frame, a C-opening connecting clamp, a slip form portal frame and a jack climbing rod, the channel steel surrounding frame is arranged on the slip form portal frame, a jack is arranged on the channel steel surrounding frame, and the jack is connected with the jack climbing rod. The sliding formwork portal is connected with the formwork fixing frame, the sliding formwork molds are connected to the two sides of the formwork fixing frame, and the roof main steel beam is connected with the channel steel surrounding frame through the triangular supporting frame. When the roof main steel beam moves upwards to a roof mounting position along with the slip form, an embedded iron part is arranged at the top of the silo wall, a portal frame is connected to the embedded iron part, and an upper edge wing plate of the roof main steel beam is connected with a cross beam of the portal frame through a C-opening connecting clamp and a steel wire rope by a chain block. The utility model has the beneficial effect that the installation problem of the main steel beam of the silo, which cannot be hoisted by hoisting machinery due to factors such as limited field and the like, is solved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a precise installation device for the main steel beam at the top of a silo. Background Technology

[0002] Silos generally refer to warehouses for storing bulk materials, and are broadly classified into agricultural silos and industrial silos. Agricultural silos are used to store granular and powdery materials such as grains and feed; industrial silos are used to store bulk materials such as coke, cement, salt, and sugar. Mechanized silos can shorten the material loading and unloading process, reduce operating and maintenance costs, eliminate heavy bagging operations, and facilitate mechanized and automated operations, thus becoming one of the most important forms of grain storage. In production practice, some silos face difficulties in construction due to limited construction sites, making it impossible to use large lifting machinery for hoisting operations when installing the main steel beams on the silo roof.

[0003] Chinese invention patent application number 201611029189.2 discloses a large-diameter silo flat roof and a silo, including an upper corridor, a primary beam, and a cover. The upper corridor is a closed structure. The primary beam is fixedly connected to the lower chord of the main steel beam of the upper corridor. There are multiple primary beams, and a secondary beam is perpendicularly arranged between adjacent primary beams. The upper surfaces of the primary and secondary beams are on the same horizontal plane. The cover is laid on the upper surface of the inner bottom of the upper corridor and the upper surfaces of the primary and secondary beams. This combination structure of primary and secondary beams requires a large crane to position the primary steel beams before the secondary beams can be installed.

[0004] Chinese utility model patent application number 202321171900.3 discloses a prefabricated steel-concrete hybrid structure silo, including a circular silo wall, a storage bottom plate, and a silo top cover. The storage bottom plate and the silo top cover are made of steel-concrete composite slabs. During slipform construction, the silo wall is constructed to the storage bottom plate, then partially modified and slipformed to the silo top elevation. Before the storage bottom plate concrete is poured, asphalt is applied at the junction with the silo wall to isolate them. The silo top cover is separated from the silo wall by a flexible waterproof material, forming a flexible connection. The silo wall, storage bottom plate, and silo top cover are designed separately, constructed independently, and operate independently. However, this type of main steel beam also requires a large crane for hoisting, making it unsuitable for the application scenarios described in this application. Utility Model Content

[0005] The purpose of this utility model is to provide a precise installation device for the main steel beam at the top of a silo, which overcomes the shortcomings of the existing technology and solves the installation problem of the main steel beam of a silo that cannot be hoisted by lifting machinery due to limited space or other factors. The device uses a slipform device installed on the silo wall to achieve precise installation of the main steel beam. The installation position is accurate, the setup is convenient, the position can be repeatedly adjusted, the project cost is reduced, and the construction period is shortened.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A precision installation device for the main steel beam at the top of a silo includes a channel steel circular frame, a gantry frame, a C-port connecting clamp, a chain hoist, a sliding formwork gantry, and a jack climbing rod. The sliding formwork gantry is equipped with the channel steel circular frame, and a jack is mounted on the channel steel circular frame. The jack is connected to the jack climbing rod. The sliding formwork gantry is connected to a mold fixing frame, and sliding formwork molds are connected to both sides of the mold fixing frame. The main steel beam of the roof is connected to the channel steel circular frame through a triangular support frame. After the main steel beam of the roof moves up to the roof installation position along with the sliding formwork mold, a pre-embedded iron part is set on the top of the silo wall. The gantry frame is connected to the pre-embedded iron part. The chain hoist connects the upper edge flange of the main steel beam of the roof to the crossbeam of the gantry frame through the C-port connecting clamp and a steel wire rope.

[0008] Furthermore, the sliding gantry is provided with inner and outer walkways on both sides.

[0009] Furthermore, multiple sets of the sliding formwork gantry and jack climbing rods are evenly arranged within the building height range of the silo.

[0010] Furthermore, a lateral adjustment mechanism is provided between the column of the gantry frame and the chain hoist.

[0011] Furthermore, the lateral adjustment mechanism is composed of turnbuckles, pulley frames, and pulleys connected in sequence. The pulleys roll along the surface of the wire rope. A movable baffle is provided on one side of the pulley frame. The movable baffle is connected to the pulley frame through a hinge pin. One end of the pulley shaft is provided with an internal thread. One end of the pulley shaft is connected to the movable baffle through a wing screw.

[0012] Furthermore, the lateral adjustment mechanism is located on the side where the distance between the wire rope and the column is excessively wide.

[0013] Furthermore, the crossbeams of the gantry frame are made of I-beams or H-beams.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) It solves the problem of installing the main steel beam of the silo that cannot be lifted by crane due to limited space and other factors. It achieves precise installation and convenient erection of the main steel beam by means of the slipform device installed on the silo wall. The position can be repeatedly adjusted and the installation position is accurate.

[0016] 2) The device has a simple structure, strong practicality, and can be reused repeatedly, which reduces project costs and shortens the construction period. It has been well received by the owner and supervisor and can be actively promoted and used in similar projects. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the connection structure between the present invention and the sliding mold gantry;

[0018] Figure 2 yes Figure 1 The right view;

[0019] Figure 3 This is a schematic diagram of the connection of the main steel beam at the top of the silo wall in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the main steel beam in the lifting state in an embodiment of this utility model;

[0021] Figure 5 yes Figure 4 The right view;

[0022] Figure 6 yes Figure 5 Enlarged view of a section at point I;

[0023] Figure 7 This is a schematic diagram of the lateral adjustment mechanism in an embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram of the C-port connection clamp structure in an embodiment of this utility model;

[0025] In the diagram: 1-silo wall, 2-embedded iron parts, 3-column, 4-channel steel circumferential frame, 5-jack, 6-jack climbing rod, 7-main steel beam, 8-chain hoist, 9-crossbeam, 10-C-port connecting clamp, 11-triangular support frame, 12-slipform mold, 13-mold fixing frame, 14-slipform gantry, 15-inner and outer walkways, 16-lateral adjustment mechanism, 17-pulley frame, 18-pulley, 19-movable baffle, 20-gantry frame, 21-pulley shaft, 22-turn bolt, 23-wing bolt. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0028] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but only to illustrate selected embodiments of the invention.

[0029] See Figure 1-8 This is a schematic diagram of a precision installation device for the main steel beam at the top of a silo, according to this utility model. It includes a channel steel circular frame 4, a gantry frame 20, a C-type connecting clamp 10, a chain hoist 8, a sliding formwork gantry 14, and a jack climbing rod 6. The channel steel circular frame 4 is mounted on the sliding formwork gantry 14, and a jack 5 is mounted on the channel steel circular frame 4. The jack 5 is connected to the jack climbing rod 6. The sliding formwork gantry 14 is connected to a mold fixing frame 13. The silo wall 14 has slipform molds 12 connected to both sides. The main roof beam 7 is connected to the channel steel circular frame 4 via a triangular support frame 11. After the main roof beam 7 moves up to the roof installation position along with the slipform mold 12, a pre-embedded iron part 2 is set on the top of the silo wall 1. A gantry frame 20 is connected to the pre-embedded iron part 2. A chain hoist 8 connects the upper edge flange of the main roof beam 7 to the crossbeam 9 of the gantry frame 20 via a C-port connecting clamp 10 and a wire rope. The crossbeam 9 of the gantry frame 20 is made of I-beams or H-beams. The slipform gantry frame 14 has inner and outer walkways 15 on both sides to facilitate the silo pouring operation.

[0030] Multiple sets of slipform gantry 14 and jack climbing rods 6 are evenly arranged within the building height range of the silo, and the slipform technology is used to complete the pouring of the entire silo wall. Slipform technology is an existing technology in the construction field. This utility model embodiment uses the slipform gantry to complete the pouring of the silo while simultaneously lifting the main steel beam 7, thereby solving the problem of lifting the main steel beam when hoisting machinery cannot be used due to site constraints or other factors.

[0031] A lateral adjustment mechanism 16 is provided between the gantry crane column 3 and the chain hoist 8. The lateral adjustment mechanism 16 is composed of a turnbuckle 22, a pulley frame 17, and a pulley 18 connected in sequence. The pulley 18 rolls along the surface of the wire rope. A movable baffle 19 is provided on one side of the pulley frame 17, and the movable baffle 19 is connected to the pulley frame 17 via a hinge pin. One end of the pulley shaft 21 has an internal thread, and the other end of the pulley shaft 21 is connected to the movable baffle 19 via a wing screw 23. The lateral adjustment mechanism 16 is located on the side where the distance between the wire rope and the column 3 is excessive.

[0032] This embodiment of the utility model uses a slipform dragging technique to slide the four large-section main steel beams of each silo roof from ▽+10.080m to ▽+49.760m using the channel steel circular frame 4 above the slipform gantry 14, which then serves as the installation device for positioning the large-section main steel beams.

[0033] The column 3 of the gantry is installed on the pre-embedded iron part 2 at the top of the completed silo wall 1 by on-site welding. The column 3 and the pre-embedded iron part 2 are fixed by on-site welding. The pre-embedded iron part 2 needs to be pre-embedded during the top slipform concrete pouring. The chain hoist 8 and the crossbeam 9 of the gantry are suspended by C-port connecting clamp 10. The C-port connecting clamp 10 and the crossbeam 9 of the gantry are mainly vertically force transmitted through the C-port connecting clamp 10 on both sides of the lower flange. The turnbuckle 22 on the transverse adjustment mechanism 16 is connected to the column 3 at one end and the other end is connected to the hoisting wire rope on the main steel beam 7 through the pulley frame 17 with a side opening.

[0034] The C-port connecting clamp 10 needs to be embedded before the column 3 and the crossbeam 9 of the gantry are assembled and welded. The bottom of the C-port connecting clamp is cut into a square or round notch to hang the chain hoist hook. The notch needs to leave enough cutting edge distance according to the form of the chain hoist hook. During the initial assembly stage, the C-port connecting clamp 10 can move within any range between the two columns 3 and the lower flange of the crossbeam 9 of the gantry.

[0035] After the gantry 20 is fixed, the position of the C-port connecting clamp 10 is initially determined based on the positioning of the main steel beam 7 and it is simply fixed so that the main steel beam 7 can freely enter the reserved groove in the silo wall through the lifting and lowering of the chain hoist 8.

[0036] The main steel beam 7 is fixed by a steel wire rope binding method. The binding steel wire rope passes through the movable pulley 18 connected to the transverse adjustment mechanism 16, and the upper end of the steel wire rope is suspended in the hook of the chain hoist.

[0037] The lateral adjustment mechanism 16 only needs to be installed on the side where the distance between the main steel beam 7 and the column 3 needs to be reduced. When it is necessary to adjust the tightness distance, the lateral adjustment mechanism 16 can be operated to achieve the goal of precise installation and positioning.

[0038] Specific operating steps: 1) After the sliding mold reaches the top elevation, press... Figure 1-2 1) Lifting and stopping within a certain height range; 2) Waiting for the silo concrete strength to reach the installation strength, and according to... Figure 3 After the vertical devices such as the gantry column of the gantry are installed and stabilized to secure the main steel beam, the slipform gantry and slipform fixing frame can be removed; 3) After the main steel beam 7 is slowly lowered to near the installation elevation by the chain hoist 8, the installation can proceed. Figure 6 After precise adjustment by the lateral adjustment mechanism 16, the steel beam is accurately positioned and installed.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision installation device for the main steel beam at the top of a silo, characterized in that, The system includes a channel steel circular frame, a gantry frame, a C-port connecting clamp, a chain hoist, a sliding formwork gantry, and a jack climbing rod. The sliding formwork gantry is equipped with a channel steel circular frame, and a jack is mounted on the channel steel circular frame. The jack is connected to the jack climbing rod. The sliding formwork gantry is connected to a mold fixing frame, and sliding formwork molds are connected to both sides of the mold fixing frame. The main roof beam is connected to the channel steel circular frame through a triangular support frame. After the main roof beam moves up to the roof installation position along with the sliding formwork mold, a pre-embedded iron part is set on the top of the silo wall. The gantry frame is connected to the pre-embedded iron part. The chain hoist connects the upper edge of the main roof beam to the crossbeam of the gantry frame through the C-port connecting clamp and a steel wire rope.

2. The precision installation device for the main steel beam at the top of a silo according to claim 1, characterized in that, The sliding gantry is equipped with inner and outer walkways on both sides.

3. The precision installation device for the main steel beam at the top of a silo according to claim 1, characterized in that, Multiple sets of the sliding formwork gantry and jack climbing rods are evenly installed within the building height range of the silo.

4. The precision installation device for the main steel beam at the top of a silo according to claim 1, characterized in that, A lateral adjustment mechanism is provided between the uprights of the gantry frame and the chain hoist.

5. The precision installation device for the main steel beam at the top of a silo according to claim 4, characterized in that, The lateral adjustment mechanism is composed of turnbuckles, pulley frames, and pulleys connected in sequence. The pulleys roll along the surface of the wire rope. A movable baffle is provided on one side of the pulley frame. The movable baffle is connected to the pulley frame through a hinge shaft. One end of the pulley shaft is provided with an internal thread. The other end of the pulley shaft is connected to the movable baffle through a wing screw.

6. The precision installation device for the main steel beam at the top of a silo according to claim 4, characterized in that, The lateral adjustment mechanism is located on the side where the distance between the wire rope and the column is excessive.

7. The precision installation device for the main steel beam at the top of a silo according to claim 1, characterized in that, The crossbeams of the gantry frame are made of I-beams or H-beams.

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