A method for disassembling, hoisting, and rapidly installing steel structures

Abstract

This application relates to a method for disassembling, hoisting, and rapidly installing a steel structure, comprising the following construction steps: constructing a protective shed; setting multiple cast-in-place piles on both sides of the protective shed, forming truss support columns after the cast-in-place piles are poured; constructing multiple temporary support columns on one side of the truss support columns, with the temporary support columns and the truss support columns arranged opposite each other; constructing sliding modules on the temporary support columns, the sliding modules being equipped with thrust devices, the ends of the sliding modules extending to the row of truss support columns closest to the temporary support columns; hoisting multiple steel frame structures; the steel frame structure includes a truss outer frame and a retractable support structure; hoisting the truss outer frame onto two rows of truss support columns, and hoisting the support structure onto the sliding modules; sliding the support structure along the sliding modules into the truss outer frame using the thrust devices, and expanding the support structure using an extension device to support the truss outer frame; welding the support structure to the truss outer frame using welding equipment.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to a method for disassembling, hoisting and quickly installing steel structures. Background Technology

[0002] For pumping stations, garbage stations, and other underground garbage or sewage treatment buildings, in order to improve the overall aesthetics of the city, most of these buildings are covered with roofs and designed with full shielding to minimize the impact on the surrounding environment.

[0003] In actual construction, heavy-duty cranes are needed to lift steel frame structures when installing covers on buildings such as pump stations and garbage stations. Since the ground below is the floor slab of the pump station or garbage station, it is necessary to consider whether the design load-bearing capacity of the floor slab can meet the pressure exerted on the floor slab by the crane during construction.

[0004] In existing technologies, it is common practice to install temporary and complex support structures on the lower level of the underground floor slab of the building in advance to reinforce the floor slab. However, this method will extend the entire construction period. If the floor slab is not reinforced in order to keep the construction period unchanged, there is a risk of the floor slab collapsing during construction. Summary of the Invention

[0005] Therefore, it is necessary to provide a method for disassembling, hoisting, and quickly installing steel structures, including the following construction steps:

[0006] S1: Construct a protective shed;

[0007] S2: Multiple cast-in-place piles are installed on both sides of the protective shed. After the cast-in-place piles are poured, they form truss support columns. The multiple truss support columns are arranged in two rows at intervals along the length of the protective shed.

[0008] S3: Construct multiple temporary support columns on one side of the truss support column, with the multiple temporary support columns arranged directly opposite the multiple truss support columns;

[0009] S4: Construct a sliding module on the temporary support column, the sliding module being equipped with a thrust device, and the end of the sliding module extending to the row of truss support columns near the temporary support column;

[0010] S5: Hoisting multiple steel frame structures; the steel frame structure includes a truss outer frame and an extendable and retractable support structure. The truss outer frame is hoisted onto two rows of truss support columns, and the support structure is hoisted onto the sliding module.

[0011] S6: The support structure is slid along the sliding module into the outer frame of the truss by the thrust device, and the support structure is expanded by the expansion device so that the support structure supports the outer frame of the truss;

[0012] S7: Place the welding equipment on top of the protective shed and weld the supporting structure to the outer frame of the truss using the welding equipment;

[0013] S8: Remove the sliding module, temporary support column, and protective shed.

[0014] In step S1, the protective shed includes multiple liftable support columns and protective baffles. The multiple liftable support columns are vertically installed on the ground in a rectangular array, and the protective baffles are located at the upper ends of the multiple liftable support columns.

[0015] The sliding module includes a steel frame, a sliding guide rail, and a sliding block. The upper end of the temporary support column and the upper end of the truss support column are both provided with the steel frame. The two steel frames extend along the direction of the spacing of the temporary support columns and the direction of the spacing of the truss support columns, respectively. The two ends of the sliding rail extend to the two steel frames, and multiple sliding rails are arranged at intervals along the length of the steel frame. The sliding block is slidably connected to the sliding rail. In step S5, the support structure is installed on the sliding block.

[0016] The four corners of the truss outer frame facing downwards are respectively placed on the four adjacent truss support columns of the two rows of truss support columns, and the multiple support structures placed on the sliding module are arranged in a one-to-one correspondence with the multiple truss outer frames.

[0017] The support structure includes multiple truss support rods, which are hinged end to end in a deformable ring arrangement. The extension device includes multiple electric push rods, which drive the truss support rods to move, so that the support structure extends to a shape corresponding to the outer frame of the truss.

[0018] The supporting structure includes truss reinforcing rods, one end of which is connected to the hinge joint of two adjacent truss support rods, and the other end extends toward the outer frame of the truss.

[0019] The extension device is disposed between multiple truss support rods. The extension device includes a mounting box, a connecting rod, and a stop member. Multiple electric push rods are installed in the mounting box. Each electric push rod is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the stop member. The stop member is connected to the truss support rod. The multiple electric push rods drive the truss support rod to move in different directions.

[0020] The abutment includes a limiting piece, which is bent into a C-shape toward the truss support rod, and the ends of two adjacent truss support rods are respectively embedded in the limiting piece.

[0021] The welding equipment includes a welding machine, a welding torch, and welding material. The welding material is mounted on the welding torch, and the welding torch is electrically connected to the welding machine.

[0022] The protective barrier is made of bamboo strips.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] This invention provides a method for the disassembly, hoisting, and rapid installation of steel structures. The steel structure support frame is disassembled into a truss outer frame and a support structure, significantly reducing the weight that can be hoisted onto the truss support columns in a single operation. Therefore, heavy-duty cranes are not required, reducing the pressure on the ground during hoisting. This eliminates the need for complex reinforcement of the ground slab, requiring only simple support and reinforcement, thus reducing the risk of ground slab collapse during hoisting, improving construction efficiency, and enhancing safety during crane hoisting. Workers can move freely on the ground, and protective canopies provide localized ground protection, preventing foreign objects from falling from heights during the hoisting of the steel structure support frame, greatly protecting worker safety. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure during construction of an embodiment of this application;

[0027] Figure 2 This is a three-dimensional structural diagram of the steel frame structure according to an embodiment of this application;

[0028] Figure 3 This is a three-dimensional structural diagram of the support structure in an embodiment of this application when it is fully expanded.

[0029] Figure 4 This is a three-dimensional structural diagram of the support structure according to an embodiment of this application;

[0030] Figure 5 This is a three-dimensional structural diagram of the extension device and support structure according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Lifting support column; 11. Protective baffle; 20. Truss support column; 21. Truss outer frame; 22. Truss support rod; 23. Truss reinforcing rod; 30. Temporary support column; 31. Temporary steel frame; 32. Sliding guide rail; 33. Sliding block; 40. Mounting box; 41. Electric push rod; 42. Connecting rod; 43. Limiting plate. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] A method for disassembling, hoisting, and rapidly installing steel structures includes the following construction steps:

[0040] S1: Construct a protective shed; Construct a protective shed on the ground. The protective shed is a liftable structure. The protective shed includes lifting support columns 10 and protective baffles 11. The lifting support columns 10 are fixedly installed on the ground. There are several lifting support columns 10. The several lifting support columns 10 are distributed in a rectangular array. The protective baffles 11 are fixedly connected to the ends of the lifting support columns 10. The lifting support columns 10 can change length along the axial direction to facilitate the adjustment of the height of the protective baffles 11.

[0041] S2: Multiple cast-in-place piles are set on both sides of the protective shed. The multiple cast-in-place piles are arranged in two rows at intervals along the length of the protective shed. After the cast-in-place piles are poured, truss support columns 20 are formed to support the steel frame structure.

[0042] S3: Construct multiple temporary support columns 30 on one side of the truss support column. The multiple temporary support columns 30 are arranged opposite to the multiple truss support columns 20, and the truss support columns 20 and the temporary support columns 30 have the same height.

[0043] S4: Construct a sliding module on the temporary support column 30. The sliding module is equipped with a thrust device, which can be an electric push rod. The end of the sliding module extends to the row of truss support columns 20 near the temporary support column 30.

[0044] S5: Hoisting multiple steel frame structures; the steel frame structure includes a truss outer frame 21 and a retractable support structure. The truss outer frame 21 is hoisted onto two rows of truss support columns 20, and the support structure is hoisted onto the sliding module.

[0045] S6: The support structure is slid along the length of the sliding module into the truss outer frame 21 by the thrust device, and the support structure is expanded by the expansion device so that the support structure can support the truss outer frame 21;

[0046] S7: Place the welding equipment at the top of the protective shed. The welding device includes a welding machine, a welding torch, and welding material. The welding material is installed on the welding torch, and the welding torch is electrically connected to the welding machine, which is powered on. The distance between the protective baffle 11 and the steel frame structure can be adjusted by lifting the support column 10, thereby adjusting the distance between the welding equipment and the steel frame structure, facilitating the welding equipment to weld the support structure to the truss outer frame 21.

[0047] S7: Remove the sliding module, temporary support column 30, and protective shed.

[0048] This method of disassembling, hoisting, and rapidly installing steel structures involves breaking down the steel structure support frame into a truss outer frame 21 and a support structure. This significantly reduces the weight that can be hoisted onto the truss support column 20 in a single operation. Therefore, it eliminates the need for heavy-duty cranes, reducing the pressure on the ground during hoisting. This eliminates the need for complex reinforcement of the ground slab, requiring only simple support and reinforcement, thus reducing the risk of ground slab collapse during hoisting, improving construction efficiency, and enhancing safety during crane hoisting. Workers can move freely on the ground, and the protective canopy provides localized ground protection, preventing foreign objects from falling from heights during the hoisting of the steel structure support frame, greatly protecting worker safety.

[0049] In this embodiment, the protective baffle 11 is made of bamboo strips, and a wire mesh is fixedly installed on the lower side of the edge of the protective baffle 11. Using bamboo strips for the protective baffle 11 reduces the weight load on the lifting support column 10 when raising the protective baffle 11 while still providing protection. Furthermore, when a worker accidentally falls from the truss outer frame 21 and lands on the bamboo strips, the bamboo strips provide a certain cushioning effect compared to traditional steel plate structures, protecting the worker's safety. The wire mesh prevents objects placed on the protective baffle 11 from slipping to the ground, thereby reducing the occurrence of falling objects from heights.

[0050] After the support structure is hoisted onto the sliding module, a thrust device pushes the support structure to slide on the sliding module, thereby pushing the support structure into the truss outer frame 21. This completes the initial assembly of the support structure and the truss outer frame 21, which is more efficient and reduces the labor intensity of workers compared to manually pushing the support structure. After the support structure is initially installed in the truss outer frame 21, an extension device is used to extend the support structure, ensuring that the support structure effectively supports the truss outer frame 21. The operation is simple and does not require manual unfolding of the support structure, improving the unfolding efficiency of the support structure and reducing the labor intensity of workers.

[0051] In this embodiment, the sliding module includes a steel frame 31, a sliding guide rail 32, and a sliding block 33. The upper end of the temporary support column 30 and the upper end of the truss support column 20 are both provided with steel frames 31. The two steel frames 31 extend along the direction of the temporary support column 30 and the direction of the truss support column 20, respectively. The two ends of the sliding track extend to the two steel frames 31, respectively. The sliding block 33 is slidably connected to the sliding track 32, and the sliding block 33 is connected to a thrust device. Along the length direction of the steel frame 31, there are several sliding tracks 32. In this embodiment, every two sliding guide rails 32 correspond to one support structure. In step S5, the support structure is installed on the sliding block, and then the thrust device pushes the sliding block 33 to move the support structure toward the truss outer frame 21.

[0052] In this embodiment, the truss outer frame 21 is a cuboid frame structure, and several truss support columns 20 are distributed in a rectangular array. The protective canopy is located between two rows of truss support columns 20. The four corners of the downward-facing side of the truss outer frame 21 are respectively installed on four adjacent truss support columns 20, with two columns in each row. Multiple temporary support columns 30 are arranged in a one-to-one correspondence with multiple truss support columns 20, and multiple support structures correspond one-to-one with multiple truss outer frames 21. The truss support columns 20 provide stable support for the four corners of the truss outer frame 21, which helps maintain the stability of the truss outer frame 21. At the same time, the cuboid frame structure allows for the addition of support structures within the frame, thereby meeting the requirements for batch assembly of the steel structure support frame, reducing the weight of a single hoisting, thus greatly reducing the ground bearing pressure requirements, and broadening the range of hoisting equipment options.

[0053] In this embodiment, the support structure includes eight truss support rods 22. Of course, the user can also set the number of truss support rods 22 according to the size and shape of the truss frame 21.

[0054] The eight truss support rods 22 are hinged at their ends and arranged in a ring. This is a retractable and expandable deformable structure, which reduces the space occupied by the support structure during transportation or hoisting. The support structure can slide into the frame of the truss outer frame 21 through the opening. After entering the frame of the truss outer frame 21, the eight truss support rods 22 can flip and expand along the hinge points to form a rectangular frame structure corresponding to the truss outer frame 21. At the same time, the rectangular frame can abut against the inner side of the truss outer frame 21. Then, the connection between the truss support rods 22 and the truss outer frame 21 is welded to complete the supporting function of the truss support rods 22 on the truss outer frame 21.

[0055] In this embodiment, a reinforcing member is provided on the truss support rod 22. One end of the reinforcing member is connected to the hinge of the truss support rod 22, and the other end extends toward the truss outer frame 21. The reinforcing member can improve the stability and structural strength of the support structure, thereby improving the support strength of the support structure when supporting the truss outer frame 21, which is beneficial to ensuring the strength requirements of the steel structure support frame.

[0056] In this embodiment, the extension device includes a mounting box 40, an electric push rod 41, a connecting rod 42, and a stop member. The mounting box 40 is located within a deformable structure formed by eight truss support rods 22. In this embodiment, four electric push rods 41 and four connecting rods 42 are respectively provided. The four electric push rods 41 are arranged in a circumferential array at equal intervals on one side of the mounting box 40 facing the truss support rods 22. The connecting rods 42 are poweredly connected to the electric push rods 41. The stop member is detachably and fixedly connected to the end of the connecting rod 42 away from the electric push rod 41. The abutment includes a limiting piece 43, which is bent into a C-shape towards the truss support rod 22. The inner diameter of the radial section of the limiting piece 43 matches the diameter of the truss support rod 22. When the limiting piece 43 abuts against the hinge of the truss support rod 22, both ends of the limiting piece 43 can abut against the outer wall of the truss support rod 22 respectively, and the concave side of the limiting piece 43 can fit against the outer wall of the truss support rod 22. After the limiting piece 43 is welded to the outer wall of the truss support rod 22, the two truss support rods 22 cannot continue to rotate along the hinge, thereby improving the stability of the truss support rod 22 in supporting the truss outer frame 21.

[0057] In this embodiment, adjacent electric push rods are arranged at a 90-degree angle, so the included angles between the four abutment members are also 90 degrees. After the four abutment members abut against the hinge of the truss support rod 22, the truss support rod 22 will unfold to form a rectangular frame structure. The electric push rod 41 drives the connecting rod 42 to move axially. The connecting rod 42 pushes the abutment members to abut against the truss support rod 22 and pushes the truss support rod 22 to flip along the hinge. When the eight truss support rods 22 unfold to form a rectangular frame, the truss support rod 22 abuts against the inside of the truss outer frame 21. At this time, the truss support rod 22 can no longer flip along the hinge. At this time, the truss support rod 22 is fully unfolded. After separating the abutment members from the connecting rod 42, the abutment members can be welded to the hinge of the truss support rod 22. The operation is simple and does not require manual unfolding of the truss support rod 22, which improves the unfolding efficiency of the truss support rod 22 and reduces the labor intensity of workers. After use, the extension device can be removed from the current truss support rod 22, and then a new abutment can be installed for use on the new truss support rod 22.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for disassembling, hoisting, and rapidly installing a steel structure, characterized in that, The construction steps include the following: S1: Construct a protective shed; S2: Multiple cast-in-place piles are installed on both sides of the protective shed. After the cast-in-place piles are poured, they form truss support columns. The multiple truss support columns are arranged in two rows at intervals along the length of the protective shed. S3: Construct multiple temporary support columns on one side of the truss support column, with the multiple temporary support columns arranged directly opposite the multiple truss support columns; S4: Construct a sliding module on the temporary support column, the sliding module being equipped with a thrust device, and the end of the sliding module extending to the row of truss support columns near the temporary support column; S5: Hoisting multiple steel frame structures; the steel frame structure includes a truss outer frame and an extendable and retractable support structure, the support structure includes multiple truss support rods, the multiple truss support rods are hinged end to end in a deformable ring arrangement, the truss outer frame is hoisted onto two rows of truss support columns, and the support structure is hoisted onto the sliding module; S6: The support structure is slid along the sliding module into the truss outer frame by the thrust device, and the support structure is extended by the extension device so that the support structure supports the truss outer frame. The extension device includes multiple electric push rods, which drive the truss support rods to move, so that the support structure extends to a shape corresponding to the truss outer frame. S7: Place the welding equipment on top of the protective shed and weld the supporting structure to the outer frame of the truss using the welding equipment; S8: Remove the sliding module, temporary support column, and protective shed.

2. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, In step S1, the protective shed includes multiple liftable support columns and protective baffles. The multiple liftable support columns are vertically installed on the ground in a rectangular array, and the protective baffles are located at the upper ends of the multiple liftable support columns.

3. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The sliding module includes a steel frame, sliding guide rails, and sliding blocks. The upper end of the temporary support column and the upper end of the truss support column are both provided with the steel frame. The two steel frames extend along the direction of the spacing of the temporary support columns and the direction of the spacing of the truss support columns, respectively. The two ends of the sliding guide rails extend to the two steel frames, and multiple sliding guide rails are arranged at intervals along the length of the steel frame. The sliding blocks are slidably connected to the sliding guide rails. In step S5, the support structure is installed on the sliding blocks.

4. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The four corners of the truss outer frame facing downwards are respectively placed on the four adjacent truss support columns of the two rows of truss support columns, and the multiple support structures placed on the sliding module are arranged in a one-to-one correspondence with the multiple truss outer frames.

5. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The supporting structure includes truss reinforcing rods, one end of which is connected to the hinge joint of two adjacent truss support rods, and the other end extends toward the outer frame of the truss.

6. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The extension device is disposed between multiple truss support rods. The extension device includes a mounting box, a connecting rod, and a stop member. Multiple electric push rods are installed in the mounting box. Each electric push rod is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the stop member. The stop member is connected to the truss support rod. The multiple electric push rods drive the truss support rod to move in different directions.

7. A method for disassembling, hoisting, and rapidly installing a steel structure according to claim 6, characterized in that, The abutment includes a limiting piece, which is bent into a C-shape toward the truss support rod, and the ends of two adjacent truss support rods are respectively embedded in the limiting piece.

8. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The welding equipment includes a welding machine, a welding torch, and welding material. The welding material is mounted on the welding torch, and the welding torch is electrically connected to the welding machine.

9. The method for disassembling, hoisting, and rapidly installing a steel structure according to claim 1, characterized in that, The protective barrier is made of bamboo strips.

Images