Steel corridor high-altitude modular assembly structure and construction method

Abstract

The application provides a steel corridor high-altitude modular assembly structure and a construction method, which comprise a stand column, a lower chord and a split unit, the stand columns are oppositely arranged on a first structure and a second structure, the lower chord is arranged at the bottom of the stand column, the split unit is arranged between the stand columns, and the bottom of the split unit is arranged on the lower chord. The application has the beneficial effect that the steel corridor is designed in a split mode, split high-altitude hoisting and assembly are realized by using existing tower cranes in the construction area, large hoisting vehicles are not needed, the construction cost is effectively reduced, the construction flexibility and efficiency are improved, the application is suitable for various scenes such as coal preparation plant storage and transportation facilities and public buildings, large equipment transportation energy consumption and ground welding pollution are reduced, and the green construction requirement is met.

Description

Technical Field

[0001] This invention belongs to the field of steel connecting corridor construction technology, and in particular relates to a high-altitude modular assembly structure and construction method for steel connecting corridors. Background Technology

[0002] In various engineering construction projects, steel connecting corridors are often erected between structures to facilitate connectivity, material transfer, or personnel passage. Examples include steel conveyor corridors for coal transfer between coal storage silos and transfer stations in coal preparation plants, pedestrian steel connecting corridors between two main buildings in public buildings, and equipment conveying steel connecting corridors between different production workshops in industrial plants. For taller steel connecting corridors, installation is more challenging and requires sophisticated hoisting equipment.

[0003] In existing technologies, the installation of steel connecting corridors generally employs large cranes for overall or segmented hoisting. However, high-rise steel connecting corridors, with their significant height and large span, often require the rental of ultra-large cranes to meet hoisting needs. This construction method presents the following technical problems:

[0004] 1. The rental cost of ultra-large cranes is high and the rental period is long, which will significantly increase the construction cost.

[0005] 2. The entry, positioning and operation of ultra-large cranes require a large area. In many construction scenarios (such as expansion projects in existing areas, dense building areas, coal preparation plant coal storage clusters, etc.), the site space is limited, and the operation flexibility of ultra-large cranes is poor. This may not only affect construction efficiency, but also interfere with surrounding existing facilities, and even pose safety hazards.

[0006] 3. Existing steel corridor construction solutions are mostly customized for specific scenarios (such as a single public building or a single industrial facility), making it difficult to quickly adapt to the construction needs of steel corridors in different scenarios such as coal preparation plants, public buildings, and industrial plants.

[0007] 4. Most of the tower cranes already deployed in the construction area are only used for the construction of corresponding structures. During the construction phase of the steel connecting corridor, the tower cranes already deployed are idle, failing to realize the reuse of such existing resources, resulting in low resource utilization. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides a modular steel corridor high-altitude assembly structure and construction method, overcoming the shortcomings of existing technologies.

[0009] The technical solution adopted in this invention is: a modular assembly structure for a steel connecting corridor at high altitude, comprising:

[0010] The columns are set opposite to each other, on the first structure and the second structure respectively;

[0011] The lower chord is located at the bottom of the column;

[0012] The segmented units are disposed between the columns, and the bottom of the segmented units is disposed on the lower chord.

[0013] Furthermore, a lower crossbeam is provided between the lower chords, and the lower crossbeams are evenly distributed.

[0014] Furthermore, the segmentation unit includes,

[0015] The upright has an upper chord at the top and a lower chord at the bottom.

[0016] Diagonal bracing is installed between the uprights;

[0017] The upper crossbeams are arranged between the upper chords, and the upper crossbeams are evenly distributed.

[0018] Furthermore, corbel beams are provided on opposite sides of the first and second structures, and the columns are mounted on the corbel beams.

[0019] This invention also provides a construction method for a modular steel corridor high-altitude assembly structure as described above, comprising the following steps:

[0020] Assemble a temporary assembly platform;

[0021] The segmented units are assembled on the temporary assembly platform;

[0022] The column is hoisted using a tower crane and installed on the opposite side of the first structure and the second structure;

[0023] The lower chord is hoisted using the tower crane and installed at the bottom of the column;

[0024] The segmented unit is hoisted using the tower crane and connected to the column and lower chord.

[0025] Furthermore, the steps preceding the assembly of the temporary assembly platform also include the following:

[0026] The tower crane was inspected and tested.

[0027] Each component of the segmented unit, as well as the column and lower chord, are prefabricated.

[0028] Furthermore, the assembly of the temporary assembly platform includes the following steps:

[0029] Pour concrete foundation;

[0030] The temporary assembly platform is installed on the concrete foundation;

[0031] Place the jig on the temporary assembly platform.

[0032] Furthermore, the step of assembling the segmented unit on the temporary assembly platform includes the following steps:

[0033] Assemble the segmented unit:

[0034] The segmented units are pre-assembled and then disassembled.

[0035] Furthermore, the step of hoisting the lower chord using the tower crane and installing the lower chord in the bottom of the column includes the following steps:

[0036] The tower crane is used to hoist the lower chord to the base of the upright and connect it to the upright;

[0037] The lower chord is reinforced with steel wire rope;

[0038] A lower crossbeam is installed between the lower chords.

[0039] Furthermore, the step of using the tower crane to hoist the segmented unit and connecting the segmented unit to the column and lower chord also includes,

[0040] A crossbeam is installed between the segmented units, each segmented unit including an upper chord, and the upper crossbeam is disposed between the upper chords.

[0041] The advantages and positive effects of this invention are:

[0042] 1. It can be widely used in the installation and construction of steel connecting corridors between two structures in various scenarios such as coal preparation plant storage and transportation facilities, public buildings, and industrial plants. Through the segmented design of functional components adapted to different scenarios, it can meet various usage needs such as material transfer and personnel passage, and solve the problem of the steel connecting corridor construction scheme being too specific and lacking versatility in the existing technology.

[0043] 2. Existing tower cranes within the construction area are used directly for the segmented hoisting and assembly of the steel connecting corridor, eliminating the need to rent extra-large cranes. This significantly reduces the cost of renting large equipment, while also reducing costs associated with equipment entry, commissioning, and transportation. This avoids the waste of existing tower crane resources and significantly lowers the overall construction cost.

[0044] 3. Existing tower cranes have already been deployed on the construction site, eliminating the need for additional space for equipment placement. This allows the system to adapt to site-constrained construction environments such as coal preparation plant coal storage clusters and densely populated public building areas, avoiding interference from large cranes to surrounding existing facilities and improving the flexibility of the construction layout and adaptability to different construction scenarios.

[0045] 4. There is no need to wait for the rental, arrival, and commissioning of large cranes. Existing tower cranes can be used to quickly carry out hoisting construction. At the same time, the segmented assembly method allows for the parallel implementation of ground prefabrication and high-altitude assembly processes, effectively shortening the construction cycle. Through pre-assembly and the design of pre-reserved positioning pin holes, the accuracy and quality of high-altitude assembly are improved. By setting up steel wire ropes and safety ropes, combined with real-time monitoring of hoisting positioning components, the safety of high-altitude operations is ensured. Attached Figure Description

[0046] The above and other objects, features, and advantages of the present invention will become more apparent from the more detailed description of the embodiments of the invention in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0047] Figure 1 This is an overall schematic diagram of a modular steel corridor high-altitude assembly structure according to an embodiment of the present invention.

[0048] Figure 2 This is a schematic diagram of a modular assembly structure for a steel connecting corridor at high altitude according to an embodiment of the present invention.

[0049] Figure 3 This is an installation diagram of a modular steel corridor high-altitude assembly structure according to an embodiment of the present invention.

[0050] Figure 4 This is a top view of the installation of a modular steel corridor high-altitude assembly structure according to an embodiment of the present invention.

[0051] Figure 5 This is a schematic diagram of the temporary reinforcement of the lower chord of a modular steel corridor high-altitude assembly structure according to an embodiment of the present invention.

[0052] In the diagram: 1. First structure; 11. High coal storage silo; 12. First corbel beam; 13. Top unloading workshop; 2. Second structure; 21. Transfer station; 22. Second corbel beam; 3. Steel connecting corridor; 31. Column; 32. Lower chord; 33. Upper chord; 34. Upright pole; 35. Diagonal brace; 36. Lower crossbeam; 37. Upper crossbeam; 38. Connecting plate; 4. Tower crane; 5. Temporary assembly platform; 6. Wire rope. Detailed Implementation

[0053] This invention provides a modular steel corridor high-altitude assembly structure and construction method. The embodiments of this invention will be described below with reference to the accompanying drawings.

[0054] In the description of the embodiments of this invention, it should be understood that the terms "top," "bottom," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0055] like Figure 1 and Figure 2 As shown, an embodiment of the present invention discloses a modular high-altitude steel connecting corridor structure, comprising columns 31, a lower chord 32, and segmented units. The steel connecting corridor 3 is erected between a first structure 1 and a second structure 2, with the first structure 1 and the second structure 2 spaced apart. The columns 31 are fixed to opposite sides of the first structure 1 and the second structure 2. The lower chord 32 is fixed between the oppositely arranged columns 31 and is fixedly connected to the base of the columns 31. The segmented units are arranged between the oppositely arranged columns 31, with the bottom of the segmented units fixed to the lower chord 32 and both ends of the segmented units fixedly connected to the columns 31. Figure 3 and Figure 4 As shown, in this embodiment, the first structure 1 includes a high coal storage silo 11, and a silo top unloading workshop 13 is provided on the top of the high coal storage silo 11. The second structure 2 includes a transfer station 21. A first corbel beam 12 and a second corbel beam 22 are respectively provided on opposite sides of the silo top unloading workshop 13 and the transfer station 21. Columns 31 are set on the corbel beams and their bottoms are fixedly connected to the corbel beams.

[0056] Preferably, a lower crossbeam 36 is fixed between the lower chords 32, and the lower crossbeams 36 are evenly distributed.

[0057] Specifically, the segmented unit includes uprights 34, diagonal braces 35, and upper crossbeams 37. Multiple uprights 34 are provided, evenly spaced. An upper chord 33 is fixed to the top of each upright 34, and the bottom of each upright 34 is fixedly connected to a lower chord 32. Diagonal braces 35 are fixed between the uprights 34. The ends of the uprights 34 and diagonal braces 35 are fixedly connected to the upper chord 33 and lower chord 32 respectively using connecting plates 38. Upper crossbeams 37 are fixed between the upper chords 33, and are evenly distributed.

[0058] A construction method for a modular steel connecting corridor high-altitude assembly structure as described above includes the following steps:

[0059] S1. Conduct a comprehensive inspection and commissioning of the existing tower crane 4 to confirm that its lifting capacity, operating radius, and safety performance meet the requirements. Based on the overall dimensions and load-bearing requirements of the steel connecting corridor 3 and the parameters of the existing tower crane 4, complete the segmented design of the steel connecting corridor 3, designing it as two segmented units, and determine their dimensions, weight, and splicing method. The existing tower crane 4 is a tower crane 4 pre-deployed within the construction area for the construction of other structures. The operating radius of the existing tower crane 4 covers the installation area of ​​the steel connecting corridor 3 between the first structure 1 and the second structure 2. The existing tower crane 4 is equipped with a laser positioning device, angle sensor, and weight sensor as lifting positioning components to monitor the entire lifting process in real time.

[0060] The steel connecting corridor 3 adopts a segmented design, divided into multiple segmented units. The weight and dimensions of each segmented unit of the steel connecting corridor 3 are adapted to the lifting capacity of the existing tower crane 4. The prefabrication of each component is completed in the ground factory, including the fabrication of columns 31, lower chord 32, upper chord 33, uprights 34, diagonal braces 35, lower crossbeams 36, upper crossbeams 37, and connecting plates 38. Positioning pin holes and bolt connection holes are reserved. Each component is sandblasted to remove rust and coated with a base coat for corrosion protection.

[0061] S2. Concrete foundation is poured on the ground outside the space between the first structure 1 and the second structure 2. Temporary assembly platform 5 is installed, and a horizontal positioning jig for the steel connecting corridor 3 is prepared. The load-bearing capacity of the temporary assembly platform 5 is then tested. The temporary assembly platform 5 is used for the temporary assembly, disassembly, placement, and adjustment of the steel connecting corridor 3. The temporary assembly platform 5 includes a support frame and a platform panel. The support frame is welded from structural steel and is placed on the concrete foundation outside the space between the first structure 1 and the second structure 2. The platform panel is made of steel plates, placed on the support frame, and welded in place.

[0062] S3. Using the existing tower crane 4, the prefabricated components from the ground factory are sequentially hoisted to the corresponding temporary assembly platform 5, and then precisely placed into the jig on the temporary assembly platform 5 using the tower crane 4.

[0063] S4. On the temporary assembly platform 5, construction workers assemble each segment unit according to... Figure 2 The assembly of the segmented units is completed by welding the upper chord 33, upright 34, diagonal brace 35, and connecting plate 38. Pre-positioning is then achieved using locating pins, followed by fastening high-strength bolts to each segmented unit, upright 34, and lower chord 32, completing the pre-assembly. During pre-assembly, unsuitable components can be adjusted to ensure smooth high-speed operation. After pre-assembly, protective disassembly is performed, preserving... Figure 2 The sliced ​​units in the code are treated as a whole.

[0064] S5. Using the existing tower crane 4, place two columns 31 sequentially on the first corbel beam 12 of the first structure 1 and fix them with pre-embedded bolts. Then, using the existing tower crane 4, place the other two columns 31 sequentially on the second corbel beam 12 of the second structure 2 and fix them with pre-embedded bolts.

[0065] S6. Using the existing tower crane 4, the two lower chords 32 are hoisted sequentially to the bases of the two side uprights 34, positioned and fixed by locating pins and then welded; construction workers install safety ropes between the two side uprights 31 for attaching safety belts; then according to... Figure 5 The lower chord 32 is temporarily reinforced by fixing it in the middle with steel wire rope 6 and diagonally pulling it. Then, the four lower crossbeams 36 are hoisted to the lower chord 32 in sequence at intervals using the existing tower crane 4, and fixed and connected with high-strength bolts.

[0066] S7. Using the existing tower crane 4, the two segmented units are hoisted to the upper part of the two lower chords 32 in sequence. The segmented units are then precisely connected to the connecting plates 38 of the two side columns 31 and the lower chords 32 using high-strength bolts and then welded and fixed. The upper crossbeam 37 is then installed, welded and fixed, and other enclosed construction is carried out.

[0067] The advantages and positive effects of this invention are:

[0068] 1. It can be widely used in the installation and construction of steel connecting corridors between two structures in various scenarios such as coal preparation plant storage and transportation facilities, public buildings, and industrial plants. Through the segmented design of functional components adapted to different scenarios, it can meet various usage needs such as material transfer and personnel passage, and solve the problem of the steel connecting corridor construction scheme being too specific and lacking versatility in the existing technology.

[0069] 2. Existing tower cranes within the construction area are used directly for the segmented hoisting and assembly of the steel connecting corridor, eliminating the need to rent extra-large cranes. This significantly reduces the cost of renting large equipment, while also reducing costs associated with equipment entry, commissioning, and transportation. This avoids the waste of existing tower crane resources and significantly lowers the overall construction cost.

[0070] 3. Existing tower cranes have already been deployed on the construction site, eliminating the need for additional space for equipment placement. This allows the system to adapt to site-constrained construction environments such as coal preparation plant coal storage clusters and densely populated public building areas, avoiding interference from large cranes to surrounding existing facilities and improving the flexibility of the construction layout and adaptability to different construction scenarios.

[0071] 4. There is no need to wait for the rental, arrival, and commissioning of large cranes. Existing tower cranes can be used to quickly carry out hoisting construction. At the same time, the segmented assembly method allows for the parallel implementation of ground prefabrication and high-altitude assembly processes, effectively shortening the construction cycle. Through pre-assembly and the design of pre-reserved positioning pin holes, the accuracy and quality of high-altitude assembly are improved. By setting up steel wire ropes and safety ropes, combined with real-time monitoring of hoisting positioning components, the safety of high-altitude operations is ensured.

[0072] The embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and have not been described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0073] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A modular assembly structure for a steel connecting corridor at high altitude, characterized in that, include: The columns are set opposite to each other, on the first structure and the second structure respectively; The lower chord is located at the bottom of the column; The segmented units are disposed between the columns, and the bottom of the segmented units is disposed on the lower chord.

2. The high-altitude modular assembly structure of a steel connecting corridor according to claim 1, characterized in that: A lower crossbeam is provided between the lower chords, and the lower crossbeams are evenly distributed.

3. The high-altitude modular assembly structure of a steel connecting corridor according to claim 2, characterized in that: The segmentation unit includes, The upright has an upper chord at the top and a lower chord at the bottom. Diagonal bracing is installed between the uprights; The upper crossbeams are arranged between the upper chords, and the upper crossbeams are evenly distributed.

4. A modular steel connecting corridor high-altitude assembly structure according to any one of claims 1-3, characterized in that: The first structure and the second structure are provided with corbel beams on opposite sides, and the columns are set on the corbel beams.

5. A construction method for a modular steel corridor high-altitude assembly structure as described in claim 1, characterized in that, Includes the following steps: Assemble a temporary assembly platform; The segmented units are assembled on the temporary assembly platform; The column is hoisted using a tower crane and installed on the opposite side of the first structure and the second structure; The lower chord is hoisted using the tower crane and installed at the bottom of the column; The segmented unit is hoisted using the tower crane and connected to the column and lower chord.

6. The construction method of a modular steel corridor high-altitude assembly structure according to claim 5, characterized in that, Before assembling the temporary assembly platform, the following steps are also included: The tower crane was inspected and tested. Each component of the segmented unit, as well as the column and lower chord, are prefabricated.

7. The construction method of a modular steel corridor high-altitude assembly structure according to claim 5, characterized in that, The steps involved in assembling the temporary assembly platform are as follows: Pour concrete foundation; The temporary assembly platform is installed on the concrete foundation; Place the jig on the temporary assembly platform.

8. A construction method for a modular steel corridor high-altitude assembly structure according to any one of claims 5-7, characterized in that, The step of assembling the segmented unit on the temporary assembly platform includes the following steps: Assemble the segmented unit: The segmented units are pre-assembled and then disassembled.

9. A construction method for a modular steel corridor high-altitude assembly structure according to any one of claims 5-7, characterized in that, The step of hoisting the lower chord using the tower crane and installing the lower chord in the bottom of the column includes the following steps: The tower crane is used to hoist the lower chord to the base of the upright and connect it to the upright; The lower chord is reinforced with steel wire rope; A lower crossbeam is installed between the lower chords.

10. A construction method for a modular steel corridor high-altitude assembly structure according to any one of claims 5-7, characterized in that, The step of hoisting the segmented unit using the tower crane and connecting the segmented unit to the column and lower chord also includes, A crossbeam is installed between the segmented units, each segmented unit including an upper chord, and the crossbeam is disposed between the upper chords.

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