High-altitude steel structure installation operation method

Abstract

The invention discloses a high-altitude steel structure installation operation method which comprises the steps that S1, a main body structure is constructed, and after concrete of the main body structure reaches the design strength, steel net frame stand columns are installed; s2, a steel truss girder is installed, and after the steel truss girder is hoisted to the roof through a tower crane, the steel truss girder and the steel truss stand columns are installed and fixed after correction and precise positioning are conducted; s3, the movable working platform is assembled, and a sliding device of the movable working platform is installed on the steel net frame main beam; s4, an operator stands in a hanging basket of the operation platform, the first steel mesh frame secondary beam is hoisted in place through a tower crane, and after positioning correction is conducted by the operator, the first steel mesh frame secondary beam is spliced and welded; s5, after the operation platform is moved to the installation position of the next steel mesh frame secondary beam through the sliding device, the steel mesh frame secondary beam is installed; and S6, the step S5 is repeated till installation of all the steel mesh frame secondary beams is completed. Therefore, the construction safety and the installation quality of the high-altitude steel grid structure are guaranteed, and the construction efficiency of the high-altitude steel grid structure is improved.

Description

Technical Field

[0001] This application belongs to the field of steel structure construction, and in particular relates to a method for high-altitude steel structure installation. Background Technology

[0002] Large-scale commercial complexes are an indispensable part of urban development, and their structural design has become increasingly demanding to meet the needs of current urbanization and various functional requirements. Steel structures, with their advantages of high strength, light weight, and fast construction speed, make steel space frame skylights the most commonly used structural form in large-scale commercial complexes to meet lighting requirements.

[0003] Single-layer steel space frame skylights are widely favored by designers due to their beautiful shape, reasonable stress distribution, and small area with large span. Influenced by neo-modernist architectural theory, architects strive to accomplish complex functions through simple designs. As a commonly used structure in modern architectural design, skylight structures, in addition to fulfilling the traditional roof functions of wind and rain protection, also provide excellent indoor lighting, inheriting tradition while giving life to the building, and also saving resources and reducing costs.

[0004] The skylights of commercial complexes are mostly located in the middle of the building's roof structure. Their installation height is relatively high, and the limited space for installation operations is constrained by the existing main structure, making construction quality and safety control challenging. Conventional construction methods mainly include assembling a full-span support scaffold, assembling an aerial work platform, and the overall lifting method. However, the full-span support scaffold method involves high erection heights, long construction periods, and high project costs; the aerial work platform assembly method is affected by the load-bearing capacity of the basement roof slab, requiring reinforcement of the basement roof; and the overall lifting method is sometimes difficult to implement due to structural and site limitations. Summary of the Invention

[0005] The purpose of this application is to address the problems of limited installation and operation space for high-altitude steel space frame structures due to the constraints of the existing main structure, high costs of using full-span operating platforms and aerial work platforms, and difficulties in construction quality and safety control. This application discloses a method for installing high-altitude steel structures to ensure the safety and installation quality of high-altitude steel space frame structures and improve the construction efficiency of high-altitude space frame structures.

[0006] The objective of this application is achieved through the following technical solution: A method for installing high-altitude steel structures, comprising the following steps: S1: Construction of the main structure. After the concrete of the main structure reaches the design strength, install the steel grid column. S2: Install the main beam of the steel space frame. After the main beam of the steel space frame is hoisted to the roof by a tower crane, it is aligned and accurately positioned before being installed and fixed to the steel space frame columns. S3: Assemble a mobile work platform and install a sliding device for the mobile work platform on the main beam of the steel grid frame; S4: The workers stand in the basket of the work platform. The tower crane lifts the first steel space frame secondary beam into place. After the workers perform positioning and correction, the first steel space frame secondary beam is assembled and welded. S5: After moving the work platform to the installation position of the next steel space frame secondary beam using the sliding device, install the steel space frame secondary beam; S6: Repeat step S5 until all steel space frame secondary beams are installed.

[0007] According to a preferred embodiment, the work platform includes: a frame structure and a suspended basket, the suspended basket being fixedly installed at the bottom of the frame structure, the frame structure being hung on the main beam of the steel space frame and being able to move along the extension direction of the main beam of the steel space frame.

[0008] According to a preferred embodiment, the frame structure is provided with pull rings, and chains are provided between the steel grid columns on both sides of the main beam of the steel grid frame. The chains pass through the pull rings, and the construction personnel move the work platform on the main beam of the steel grid frame by pulling the chains inside the basket.

[0009] According to a preferred embodiment, the frame structure includes: an upper horizontal bar and two longitudinal connecting rods, the upper horizontal bar and the two longitudinal connecting rods forming a horizontally arranged cross-shaped structure; and the bottom side of the longitudinal connecting rod is provided with several sliding wheels, the sliding wheels being movably connected to the top side of the main beam of the steel grid frame.

[0010] According to a preferred embodiment, the longitudinal connecting rod extends in the same direction as the main beam of the steel space frame. According to a preferred embodiment, the frame structure further includes: connecting diagonal braces, with four connecting diagonal braces completing the connection of the connected ends of the cross-shaped structure.

[0011] According to a preferred embodiment, the frame structure further includes: two vertical rods, the top ends of which are perpendicularly connected to the two ends of the upper horizontal rod; the basket is disposed on the bottom side of the two vertical rods.

[0012] According to a preferred embodiment, the bottom ends of the two vertical poles are respectively provided with telescopic structures, and the basket is attached to the bottom end of the telescopic structures.

[0013] According to a preferred embodiment, the suspended platform is connected to the telescopic structure via a wire rope.

[0014] According to a preferred embodiment, each of the top corners of the suspended platform is provided with a lifting ring, and the wire rope is fixedly connected to the lifting ring.

[0015] The aforementioned main solution and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application. Those skilled in the art, after understanding the solution of this application, will realize that there are many combinations based on the prior art and common general knowledge, all of which are technical solutions to be protected in this application, and will not be exhaustively listed here.

[0016] The beneficial effects of this application are: The use of mobile work platforms in the installation of high-altitude steel space frame structures avoids the need to erect full-span work platforms or use aerial work platforms to reinforce basement roofs due to space constraints, thus increasing construction costs. This effectively improves construction efficiency, ensures the construction quality of steel space frame structures, and enhances construction safety.

[0017] By installing sliding wheels, pull rings, and chains on a mobile working platform, the platform can be moved to assemble and weld secondary beams of the steel space frame on the main beam. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the high-altitude steel structure installation operation method of this application; Figure 2 This is a structural schematic diagram of the high-altitude steel structure of this application; Figure 3 This is a schematic diagram of the installation process of the high-altitude steel structure in this application; Figure 4 This is a schematic diagram of the installation platform structure for the high-altitude steel structure of this application; Among them, 1-main beam of steel space frame, 2-secondary beam of steel space frame, 3-column of steel space frame, 4-chain, 5-working platform, 51-upper horizontal bar, 52-longitudinal connecting rod, 53-vertical bar, 54-connecting diagonal brace, 55-sliding wheel, 56-lower horizontal bar, 57-pull ring, 58-telescopic structure, 59-suspended basket, 510-balance bolt, 511-wire rope, 512-lifting ring, 6-main structure, 7-hollow hole. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They 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 on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] Furthermore, it should be noted that unless otherwise specified in this application, the specific structures, connections, positions, power sources, etc. involved are all things that a person skilled in the art can know without creative effort based on the prior art.

[0025] Example 1 refer to Figure 1 As shown in the figure, a method for installing a high-altitude steel structure is illustrated, which includes the following steps.

[0026] Step S1: Construct the main structure 6. After the concrete of the main structure 6 reaches the design strength, install the steel grid column 3.

[0027] Step S2: Install the main steel grid beam 1. After the main steel grid beam 1 is hoisted to the roof by a tower crane, it is aligned and precisely positioned before being installed and fixed to the steel grid column 3.

[0028] Step S3: Assemble the movable work platform 5 and install the sliding device of the movable work platform on the main beam 1 of the steel grid frame.

[0029] Step S4: The workers stand in the basket 59 of the work platform 5. The tower crane lifts the first steel space frame secondary beam 2 into place. After the workers perform positioning and correction, the first steel space frame secondary beam 2 is assembled and welded.

[0030] Step S5: After moving the working platform 5 to the installation position of the next steel space frame secondary beam 2 by means of the sliding device, install the steel space frame secondary beam 2.

[0031] Step S6: Repeat step S5 until all steel space frame secondary beams 2 are installed.

[0032] Preferably, the work platform 5 includes: a frame structure and a suspended basket 59. The suspended basket 59 is fixedly installed at the bottom of the frame structure. The frame structure is hung on the main beam 1 of the steel grid frame and can move along the extension direction of the main beam 1 of the steel grid frame.

[0033] Furthermore, the frame structure is provided with pull rings 57, and chains 4 are provided between the steel grid columns 3 on both sides of the main beam 1 of the steel grid frame. The chains 4 are set through the pull rings 57, and the construction personnel can move the working platform 5 on the main beam 1 of the steel grid frame by pulling the chains 4 inside the suspended basket 59.

[0034] Preferably, the frame structure includes: an upper horizontal bar 51 and two longitudinal connecting rods 52, the upper horizontal bar 51 and the two longitudinal connecting rods 52 forming a horizontally arranged cross-shaped structure; and the bottom side of the longitudinal connecting rods 52 is provided with several sliding wheels 55, the sliding wheels 55 being movably connected to the top side of the main beam 1 of the steel grid frame. The several sliding wheels 55 ensure that the working platform 5 can move on the main beam 1 of the steel grid frame.

[0035] Furthermore, the extending direction of the longitudinal connecting rod 52 is the same as the extending direction of the main beam 1 of the steel space frame. Preferably, the frame structure further includes: connecting diagonal braces 54, with four connecting diagonal braces 54 completing the connection of the joint ends of the cross-shaped structure. Thus, the structural stability and strength of the cross-shaped structure are improved through the structural arrangement of the connecting diagonal braces 54.

[0036] Preferably, the frame structure further includes: two vertical rods 53, the top ends of which are perpendicularly connected to the two ends of the upper horizontal rod 51; the hanging basket 59 is disposed on the bottom side of the two vertical rods 53.

[0037] Furthermore, each of the two vertical poles 53 has a telescopic structure 58 at its bottom end, and the suspended platform 59 is attached to the bottom end of the telescopic structure 58. Thus, the telescopic structure 58 allows construction personnel to adjust the height of the suspended platform 58 as needed.

[0038] Furthermore, the suspended platform 59 is connected to the telescopic structure 58 via steel wire rope 511. Each of the top corners of the suspended platform 59 is equipped with a lifting ring 512, and the steel wire rope 511 is fixedly connected to the lifting ring 512.

[0039] Preferably, a lower horizontal bar 56 is provided between the bottom ends of the two vertical bars 53, and a balance bolt 510 is provided on the lower horizontal bar 56. By turning the balance bolt 510, the abutment and limit of the main beam 1 of the steel grid frame is completed, so as to fix the position of the working platform (5).

[0040] This application utilizes a mobile work platform in the installation of high-altitude steel space frame structures, avoiding the need to erect a full-span work platform due to space constraints or use aerial work platforms to reinforce basement roofs, thus increasing construction costs. This effectively improves construction efficiency, ensures the construction quality of the steel space frame structure, and enhances construction safety. The mobile work platform is equipped with sliding wheels, pull rings, and chains, enabling the platform to move and assemble the secondary beams of the steel space frame along the main beam.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for installing high-altitude steel structures, characterized in that, The method for installing high-altitude steel structures includes the following steps: S1: Construction of the main structure (6). After the concrete of the main structure (6) reaches the design strength, install the steel grid column (3). S2: Install the main beam of the steel space frame (1). After the main beam of the steel space frame (1) is hoisted to the roof by the tower crane, it is corrected and accurately positioned before being installed and fixed with the steel space frame column (3). S3: Assemble the mobile work platform (5) and install the sliding device of the mobile work platform on the main beam (1) of the steel grid frame; S4: The workers stand in the basket (59) of the work platform (5). The tower crane lifts the first steel grid secondary beam (2) into place. The workers then perform positioning and correction before assembling and welding the first steel grid secondary beam (2). S5: After moving the working platform (5) to the installation position of the next steel space frame secondary beam (2) by means of the sliding device, the steel space frame secondary beam (2) is installed; S6: Repeat step S5 until all steel grid secondary beams (2) are installed.

2. The high-altitude steel structure installation method as described in claim 1, characterized in that, The work platform (5) includes: a frame structure and a suspended basket (59), wherein the suspended basket (59) is fixedly installed at the bottom of the frame structure. The frame structure is attached to the main beam (1) of the steel grid frame and can move along the extension direction of the main beam (1).

3. The high-altitude steel structure installation method as described in claim 2, characterized in that, The frame structure is provided with a pull ring (57), and a chain (4) is provided between the steel grid columns (3) on both sides of the main beam (1) of the steel grid frame. The chain (4) is set through the pull ring (57). The construction personnel can move the working platform (5) on the main beam (1) of the steel grid frame by pulling the chain (4) in the basket (59).

4. The high-altitude steel structure installation method as described in claim 2, characterized in that, The frame structure includes: an upper horizontal bar (51) and a longitudinal connecting bar (52). The upper crossbar (51) and the two longitudinal connecting rods (52) form a horizontally arranged cross-shaped structure; Furthermore, the bottom side of the longitudinal connecting rod (52) is provided with several sliding wheels (55), and the sliding wheels (55) are movably connected to the top side of the main beam (1) of the steel grid frame.

5. The high-altitude steel structure installation method as described in claim 4, characterized in that, The longitudinal connecting rod (52) extends in the same direction as the main beam (1) of the steel space frame.

6. The high-altitude steel structure installation method as described in claim 4, characterized in that, The frame structure also includes: connecting diagonal braces (54), and four connecting diagonal braces (54) complete the connection of the ends of the cross-shaped structure.

7. The high-altitude steel structure installation method as described in claim 4, characterized in that, The frame structure also includes: two vertical rods (53), the top ends of which are perpendicularly connected to the two ends of the upper horizontal rod (51); the basket (59) is set on the bottom side of the two vertical rods (53).

8. The high-altitude steel structure installation method as described in claim 7, characterized in that, The bottom ends of the two vertical poles (53) are respectively provided with telescopic structures (58), and the basket (59) is attached to the bottom end of the telescopic structure (58).

9. The high-altitude steel structure installation method as described in claim 8, characterized in that, The suspended platform (59) is connected to the telescopic structure (58) via a steel wire rope (511).

10. The high-altitude steel structure installation method as described in claim 9, characterized in that, The top corner of the suspended basket (59) is provided with a lifting ring (512), and the wire rope (511) is fixedly connected to the lifting ring (512).

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