Construction method of large-span protective shed and application in steel cage processing

Abstract

The application discloses a construction method of a large-span protective shed and application of the large-span protective shed in steel reinforcement cage processing, and the construction method comprises the following steps: S10, cleaning and leveling the installation position of a protective shed stand column in a construction site; S20, installing the installation position according to elastic line positioning, so as to accurately install the stand column through a base; S30, installing a main beam on each column of stand columns, so that the main beam is welded and assembled according to process requirements and is arched; S40, welding a plurality of cross beams between the main beams; and S50, laying color steel tiles on the cross beams. When the large-span protective shed processed by the above method is applied in the steel reinforcement cage processing, the protective shed can be used to well protect workers, equipment and materials, and after the steel reinforcement cage is processed, the steel reinforcement cage can be conveniently transferred out of the protective shed by using an inclined plate. Therefore, the application can adapt to construction of different types of large-span protective sheds, and the large-span protective shed can effectively protect and facilitate the steel reinforcement cage processing and transferring.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction technology, and in particular relates to a construction method of a large-span protective shed and an application of the method in the processing of a steel cage. Background Art

[0002] In construction projects, large-scale steel cages require extensive fabrication space due to their large size. In some cases, a protective shed is required behind the construction site to protect personnel, equipment, and materials from the outside environment. This requires a large protective area, typically spanning over 30 meters. Existing protective sheds generally have small spans, typically under 15 meters, making them difficult to meet the protection requirements for large spans (over 30 meters). As construction projects continue to expand, the demand for large-span steel cages is also increasing, necessitating a new installation and construction method to address the challenges of erecting these large-span sheds. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a construction method of a large-span protective shed and its application in the processing of steel cages, which can adapt to the processing of large-size steel cages, and the constructed protective shed has the advantages of stable and reliable structure, high construction efficiency, low cost, and flexible adjustment.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A construction method for a large-span protective shed comprises the following steps:

[0006] S10: Clean and level the installation locations of the protective shed columns within the construction site in accordance with the base cleaning requirements;

[0007] S20: Locate the installation position of the base of the column to be installed according to the elastic line, so as to accurately install the column through the base, and the columns are arranged in two rows;

[0008] S30: Install the main beam on each column so that the main beam is welded, assembled and arched according to the process requirements;

[0009] S40: welding a plurality of cross beams between the main beams, and distributing the cross beams at equal intervals;

[0010] S50: Lay colored steel tiles on the beams to firmly connect the colored steel tiles to the beams to achieve the shielding function of the protective shed.

[0011] Furthermore, in the S20, the column adopts the following structure and installation method: the cross-sectional size of the column is 400mm*400mm, and the column is composed of four 100mm*100mm*2.5mm square steels welded by welding blocks. The length of the square steel can be adjusted according to actual needs; the installation method of the column: a 12mm thick steel plate is welded at the bottom of the column, and the steel plate is fixed to the concrete base by expansion bolts. At the same time, two cross 50mm*50mm square steels are added in the horizontal direction of the column to form shear braces for reinforcement; after the column is installed, steel bars with a diameter of 20mm are embedded in the bottom plate, and then steel bars are added horizontally and welded to the embedded steel bars and the column, and finally concrete is poured for reinforcement.

[0012] Furthermore, in the S30, the main beam adopts the following structure and method: the main beam is welded and assembled with several 400mm*600mm*2mm square steels, and the middle part of the main beam is arched upward by 1.2m; the main beam installation method is: the main beam is located at the fixed point between the column and the steel plate is welded, the steel plate and the column are fully welded, and the steel plate is locked and connected to the column by bolts, the lower end of the connection position between the main beam and the column is welded with angle steel for support and fixation, and at the same time, a diagonal brace is set between the main beam and the column to form secondary reinforcement.

[0013] Furthermore, in the S40, the crossbeam adopts the following structure and installation method: the crossbeam includes a large crossbeam and a small crossbeam, the large crossbeam is welded by several 50mm*50mm*2mm square steels, the cross-section of the large crossbeam is 400mm*600mm, and the spacing between adjacent large crossbeams is not more than 5m; the small crossbeam adopts a single 50mm*50mm square steel, the spacing between adjacent small crossbeams is 0.9m, and both ends of the large crossbeam and the small crossbeam are welded to the main beam by full welding.

[0014] Furthermore, when installing the large beam and the small beam, the following method is adopted: multiple positioning parts are set on the main beam along the length direction, and the positioning parts of the two main beams correspond to each other, and connecting parts are installed at both ends of the large beam and the small beam, and the connecting parts are adapted to the positioning parts. When installing, the large beam and the small beam are connected to the main beam by fully welding after the connecting parts at the end are adapted to the corresponding positioning parts.

[0015] Furthermore, regarding the structure adopted by the positioning member and the connecting member: the positioning member includes a rotating shaft, a round handle arranged on one end of the rotating shaft, and an open support arranged on the round handle, and the round handle is provided with a through hole; the connecting member includes a support block arranged at the end of the large beam and / or the small beam, and the large beam and the small beam are plugged and adapted with the open support through the support block, and the open support is rotated by the rotating shaft until the large beam or the small beam can be supported on the open support through the support block, and then a bolt is passed through the through hole and locked to the main beam to limit the rotation of the open support, and the large beam and the small beam are further welded to the main beam by full welding.

[0016] Furthermore, in said S50, when laying and installing the color steel tiles, the following method is adopted: a slide rail with a slide groove is installed on the top surface of the large beam and the small beam, the slide rail extends along the length direction of the beam, and the color steel tiles are equally divided into several sections along the length direction of the main beam. The width of each section of color steel tiles is the distance between adjacent large beams, and several rows of sliders are arranged on the plane of each section of color steel tiles. The spacing between the rows of sliders is the spacing between adjacent small beams. The sliders are slidably connected to the slide grooves of the slide rails, and both ends of each section of color steel tiles corresponding to the two main beams are connected and fixed to the main beams with fixing parts.

[0017] Furthermore, regarding the use of fixing parts to connect and fix to the main beam, the following structure and method can be adopted: the fixing parts adopt a sealing block set on the plane of the color steel tile and a sealing plug set on the side of the sealing block away from the slider. When the color steel tile is slidably adapted to the slide groove of several slide rails through several sliders, the color steel tile is further pushed to make the sealing plug fit into the end of the slide groove, and the sealing block is abutted against the end of the slide rail, and the sealing block is further locked and fixed to the end face of the slide rail by screws.

[0018] Furthermore, in the S50, after the installation of each section of the color steel tile is completed, the following method is adopted: a waterproof aluminum film is pasted between adjacent sections of the color steel tile to improve the sealing between the adjacent sections of the color steel tile.

[0019] An application of a large-span protective shed in the processing of steel cages includes a large-span protective shed, which is processed using the above-mentioned construction method. A working platform for welding and processing steel cages is provided in the large-span protective shed, and an inclined plate is provided on one side of the working platform. The columns on both sides of the large-span protective shed span the inclined plate. After the steel cage processing is completed on the working platform, the steel cage is pushed outside the large-span protective shed with the help of the inclined plate for subsequent handling operations.

[0020] The present invention has the following beneficial effects:

[0021] 1. The construction method of the large-span protective shed of the present invention, wherein the overall structure of the large-span steel bar protective shed is mainly composed of columns, main beams, cross beams and color steel tiles, and then through reasonable connection methods and reinforcement measures, the structural stability and reliability of the large-span protective shed are guaranteed, so that it has good wind and earthquake resistance. At the same time, the present invention adopts standardized design and modular construction, and the size and form of each component can be flexibly adjusted according to actual needs to adapt to different construction sites and environmental requirements. In addition, the present invention uses high-quality protective materials, such as color steel tiles, which can effectively achieve sunshade, windproof, rainproof, dustproof and other functions, providing a good working environment for construction. Based on this, the present invention successfully built a large-span steel bar protective shed through the construction method of the large-span protective shed. When processing large-sized steel cages, it can meet the protection needs of personnel, equipment and materials during the project construction process, effectively ensure construction safety, while improving construction efficiency and reducing construction costs, providing a good reference example for similar projects. During the construction process, strict implementation of quality control and assurance measures ensures the quality and performance of the protective shed. Compared with the existing technology that is unable to build large-span steel bar protection sheds, the construction method of the present invention has the advantages of stable and reliable structure, high construction efficiency, low cost, and flexible adjustment. It effectively solves the problem of setting up large-span steel bar protection sheds in construction projects, provides a good working environment for construction, and ensures construction safety.

[0022] 2. The application of the large-span protective shed of the present invention in the processing of steel cages. When the large-span protective shed of the present invention is applied to the processing of steel cages, the staff can weld and process the steel cages in the large-span protective shed, so that the protective shed can provide good protection for the staff, equipment and materials. At the same time, after the processing is completed, the inclined plate can be used to transfer the steel cage outside the protective shed, which makes the transportation operation simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a process flow chart of the construction method of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the protective shed of the present invention.

[0025] Figure 3 This is a schematic diagram of the connection between the column of the present invention and the concrete base through the steel plate.

[0026] Figure 4 Schematic diagram of the steel column foot of the column of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the positioning member of the present invention.

[0028] Figure 6 This is a schematic diagram of the large-span protective shed of the present invention when processing the steel cage.

[0029] In the figure: 1. Column; 2. Main beam; 3. Cross beam; 4. Color steel tile; 5. Positioning piece; 51. Rotating shaft; 52. Round handle; 53. Open support; 54. Through hole; 6. Working platform; 7. Inclined plate; 8. Steel cage. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Terms such as "upper," "inner," "middle," "left," "right," and "one" used in this specification are for ease of description and are not intended to limit the scope of the present invention. Changes or adjustments to these terms, without substantially altering the technical content, are also considered within the scope of the present invention.

[0031] When processing the steel cage 8 according to the existing technology, it is necessary to protect the workers, related equipment and materials. However, due to the limited processing technology of the existing technology, there is no large-span protective shed. Therefore, the construction method of the large-span protective shed of the present invention is designed. This construction method can adapt to the construction of different types of large-span protective sheds, and has the advantages of stable and reliable structure, high construction efficiency, low cost, and flexible adjustment. It effectively solves the problem of setting up large-span steel protection sheds in construction projects, provides a good working environment for construction, and ensures construction safety. At the same time, when the processed large-span protective shed is applied to the processing of the steel cage 8, the steel cage 8 can be safely processed under the protection of the large-span protective shed, and the steel cage 8 can be better transported, which has the advantages of effective protection and simple operation.

[0032] The following is a detailed introduction to the construction method of the large-span protective shed of the present invention:

[0033] Example 1

[0034] A construction method for a large-span protective shed, such as Figures 1 to 6 As shown, the following steps are included:

[0035] S10: Clean and level the installation location of the protective shed columns 1 in the construction site according to the base cleaning requirements.

[0036] S20: Locate the installation position of the base of the column 1 to be installed according to the elastic line, so as to accurately install the column 1 through the base, and the column 1 is in two rows;

[0037] In S20, column 1 adopts the following structure and installation method: the cross-sectional size of column 1 is 400mm*400mm, and column 1 is composed of four 100mm*100mm*2.5mm square steels welded by welding blocks. The length of the square steel can be adjusted according to actual needs; regarding the installation method of column 1: a 12mm thick steel plate is welded at the bottom of column 1, and the steel plate is fixed to the concrete base by expansion bolts. At the same time, two cross 50mm*50mm square steels are added horizontally to column 1 to form shear braces for reinforcement, thereby improving the stability of column 1 installation; after the installation of column 1 is completed, steel bars with a diameter of 20mm are embedded in the bottom plate, and then steel bars are added horizontally and welded to the embedded steel bars and column 1, and finally concrete is poured for reinforcement to further improve the stability of column 1 installation.

[0038] S30: The main beam 2 is welded and installed on the top of each column 1, so that the main beam 2 is welded, assembled and arched according to the process requirements.

[0039] In S30, the main beam 2 adopts the following structure and method: the main beam 2 is welded and assembled with several 400mm*600mm*2mm square steels, and the middle part of the main beam 2 arches upward by 1.2m; regarding the installation method of the main beam 2: the main beam 2 is located at the fixed point between the column 1 and the steel plate is welded, the steel plate is fully welded to the column 1, and the steel plate is locked to the column 1 by bolts, and the lower end of the connection position between the main beam 2 and the column 1 is welded with angle steel for support and fixation, and at the same time, a diagonal brace is set between the main beam 2 and the column 1 to form a secondary reinforcement, thereby improving the stability and structural strength of the support of the main beam 2.

[0040] At the same time, it should be noted that when implementing the working method of the present invention, since welding steps are involved, it is necessary to limit the welding environment, preparations before welding, and personnel qualifications, as follows:

[0041] 1) Welding Environment Control: ① The welding area should be kept dry and free of oil, rust, water, scale, and other contaminants. ② Welding rods and flux should be baked according to regulations. Low-hydrogen welding rods should be placed in an insulated box (or drum) after drying and available for immediate use. The time between welding rods being removed from the insulated box (or drum) and welding is strictly limited. If the requirements are not met, they must be re-dried, but the number of times should not exceed two. ③ If wind speed or humidity exceeds the limit, windproof and dehumidification measures should be implemented. If the ambient temperature is below 0°C, the weldment must be heated. The heating temperature is determined based on various factors. The welding technical personnel responsible will formulate and confirm the operation plan before implementation.

[0042] 2) Pre-welding Preparation: ① The welder will review the quality of the welded joints and the weld area. If any defects do not meet the requirements, they must be repaired and qualified before welding. ② Before welding, clean the welding wire to remove rust and oil. The nozzle, stud, and ceramic ferrule must be baked and dehumidified before use. The welding wire must be coiled neatly and tightly to meet welding requirements. All welding components must function properly and the power supply must be stable.

[0043] 3) Personnel qualification requirements: Welders must pass the examination and obtain the corresponding qualification certificate, and weld within the items they have passed the examination and the scope of approval.

[0044] S40: welding a plurality of cross beams 3 between the main beams 2, and distributing the cross beams 3 at equal intervals;

[0045] In S40, the beam 3 adopts the following structure and installation method: the beam 3 includes a large beam and a small beam. The large beam is welded by several 50mm*50mm*2mm square steels. The cross section of the large beam is 400mm*600mm, and the spacing between adjacent large beams is not more than 5m; the small beam adopts a single 50mm*50mm square steel, and the spacing between adjacent small beams is 0.9m, and both ends of the large beam and the small beam are welded to the main beam 2 by full welding.

[0046] When installing the large and small beams, the following method is used: multiple positioning members 5 are provided along the length of the main beam 2, and the positioning members 5 of the two main beams 2 correspond to each other. Connectors are installed at both ends of the large and small beams, and the connectors are adapted to the positioning members 5. During installation, the large and small beams are connected to the main beam 2 by fully welding after the connectors at the ends are adapted to the corresponding positioning members 5. Therefore, the method of positioning and adapting the connectors to the positioning members 5 before welding can effectively improve operational convenience. The positioning members 5 and the connectors can adopt a socket and positioning pin structure.

[0047] S50: Laying colored steel tiles 4 on the crossbeams 3, so that the colored steel tiles 4 are firmly connected to the crossbeams 3, thereby realizing the shielding function of the protective shed.

[0048] Example 2

[0049] like Figures 1 to 5 As shown, Example 2 is a technical solution extended on the basis of Example 1. The differences between Example 2 and Example 1 are as follows:

[0050] In S40, regarding the structures adopted by the positioning member 5 and the connecting member: the positioning member 5 includes a rotating shaft 51 rotatably connected to the main beam 2, a round handle 52 arranged on one end of the rotating shaft 51, and an open support 53 arranged on the round handle 52, and the round handle 52 is provided with a through hole 54; the connecting member includes a support block arranged at the end of the large beam and / or the small beam, and the large beam and the small beam are plugged and adapted with the open support 53 through the support block, and the open support 53 is rotated by the rotating shaft 51 until the large beam or the small beam can be well supported on the open support 53 by the support block, and then a bolt is passed through the through hole 54 and locked and fixed to the main beam 2 to limit the rotation of the open support 53, and further the large beam and the small beam are welded to the main beam 2 by full welding, thereby achieving the advantage of simple operation.

[0051] In S50, when laying and installing the color steel tile 4, the following method is adopted: a slide rail with a slide groove is installed on the top surface of the large beam and the small beam, and the slide rail extends along the length direction of the beam 3. The color steel tile 4 is divided into several sections along the length direction of the main beam 2. The width of each section of the color steel tile 4 is the distance between adjacent large beams. A plurality of rows of sliders are set on the plane of each section of the color steel tile 4. The spacing between the plurality of rows of sliders is the spacing between adjacent small beams. The sliders are slidably connected to the slide groove of the slide rail. Each section of the color steel tile 4 is connected and fixed to the main beam 2 at both ends of the two main beams 2 using fixing parts. Therefore, after the fixing parts are released from the main beam 2, the color steel tile 4 can be replaced by sliding the sliders in the slide groove, which has the advantage of simple operation.

[0052] In S50, regarding the use of fixing parts to connect and fix the main beam 2, the following structure and method can be adopted: the fixing parts adopt a sealing block set on the plane of the color steel tile 4 and a sealing plug set on the side of the sealing block away from the slider. When the color steel tile 4 is slidably adapted to the slide grooves of the plurality of slide rails through the plurality of sliders, the color steel tile 4 is further pushed to make the sealing plug plug and the end of the slide groove fit together, and the sealing block abuts against the end of the slide rail, and the sealing block is further locked and fixed to the end face of the slide rail by screws. Therefore, by setting the sealing block and the sealing plug of the fixing parts to be locked and connected to the slide rail, it has the advantage of simple operation during the subsequent removal operation, wherein the plugging of the sealing plug with the end of the slide groove can play a good positioning role.

[0053] In S50 , after the installation of each section of the color steel tile 4 is completed, the following method is adopted: a waterproof aluminum film is pasted between adjacent sections of the color steel tile 4 to improve the sealing between the adjacent sections of the color steel tile 4 .

[0054] In summary, the construction method of the large-span protective shed of the present invention, wherein the overall structure of the large-span steel bar protective shed is mainly composed of columns 1, main beams 2, cross beams 3 and color steel tiles 4, and then through reasonable connection methods and reinforcement measures, the structural stability and reliability of the large-span protective shed are guaranteed, so that it has good wind and earthquake resistance; at the same time, the present invention adopts standardized design and modular construction, and the size and form of each component can be flexibly adjusted according to actual needs to adapt to different construction sites and environmental requirements; and the present invention uses high-quality protective materials, such as color steel tiles 4, which can effectively achieve sunshade, windproof, rainproof, dustproof and other functions, providing a good working environment for construction. Based on this, the present invention successfully built a large-span steel bar protective shed through the construction method of the large-span protective shed. When processing large-sized steel cages 8, it can meet the protection needs of personnel, equipment and materials during the project construction process, effectively ensure construction safety, while improving construction efficiency and reducing construction costs, providing a good reference example for similar projects. During the construction process, quality control and assurance measures are strictly followed to ensure the quality and performance of the protective shed. Compared with the existing technology that is unable to build large-span steel bar protection sheds, the construction method of the present invention has the advantages of stable and reliable structure, high construction efficiency, low cost, and flexible adjustment. It effectively solves the problem of setting up large-span steel bar protection sheds in construction projects, provides a good working environment for construction, and ensures construction safety.

[0055] Example 3

[0056] like Figures 1 to 6 As shown, a large-span protective shed is used in the processing of a steel cage 8, including a large-span protective shed. The large-span protective shed is processed using the construction methods of Examples 1 and 2. A working platform 6 for welding and processing the steel cage 8 is provided in the large-span protective shed. A recessed portion is provided on the processing platform for stably placing the steel cage 8, so that workers can better weld and process the steel cage 8. An inclined plate 7 is provided on one side of the working platform 6. The inclined plate 7 can also be replaced by a diagonal brace. The columns on both sides of the large-span protective shed cross the inclined plate 7 so that the inclined plate 7 extends outside the large-span protective shed. After completing the processing of the steel cage 8 on the working platform 6, the worker can use the inclined plate 7 to push the steel cage 8 outside the large-span protective shed for subsequent handling operations.

[0057] It can be seen from this that when the large-span protective shed processed by Example 1 and Example 2 is used in the processing of the steel cage 8, the staff can weld and process the steel cage 8 in the large-span protective shed, so as to use the protective shed to provide good protection for the staff, equipment and materials. At the same time, after the processing is completed, the inclined plate 7 can be used to transfer the steel cage 8 to the outside of the protective shed, which makes the transportation operation simple.

[0058] The embodiments of the present invention are not limited to these. According to the above contents of the present invention, by utilizing common technical knowledge and customary means in this field, without departing from the above basic technical ideas of the present invention, the present invention can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the present invention.

Claims

1. A construction method for a large-span protective shed, characterized in that: The following steps are involved: S10: Clean and level the installation locations of the protective shed columns within the construction site in accordance with the base cleaning requirements; S20: Locate the installation position of the base of the column to be installed according to the elastic line, so as to accurately install the column through the base, and the columns are arranged in two rows; S30: Install the main beam on each column so that the main beam is welded, assembled and arched according to the process requirements; S40: welding a plurality of cross beams between the main beams, and distributing the cross beams at equal intervals; The crossbeam adopts the following structure and installation method: the crossbeam includes a large crossbeam and a small crossbeam; when installing the large crossbeam and the small crossbeam, the following method is adopted: multiple positioning pieces are set along the length direction of the main beam, and the positioning pieces of the two main beams correspond to each other. Connecting pieces are installed at both ends of the large crossbeam and the small crossbeam, and the connecting pieces are adapted to the positioning pieces. When installing, the large crossbeam and the small crossbeam are connected to the main beam by fully welding after the connecting pieces at the ends are adapted to the corresponding positioning pieces. Regarding the structure of the positioning member and the connecting member: the positioning member includes a rotating shaft, a round handle provided at one end of the rotating shaft, and an open bracket provided on the round handle, wherein the round handle is provided with a through hole; the connecting member includes a support block provided at the end of the large crossbeam and / or the small crossbeam, the large crossbeam and the small crossbeam are plugged and adapted to the open bracket through the support block, the open bracket is rotated by the rotating shaft until the large crossbeam or the small crossbeam can be supported on the open bracket by the support block, and then bolts are passed through the through holes and locked to the main beam to limit the rotation of the open bracket, and the large crossbeam and the small crossbeam are further welded to the main beam by full welding; S50: Lay colored steel tiles on the beams to firmly connect the colored steel tiles to the beams to achieve the shielding function of the protective shed.

2. The construction method of the large-span protective shed according to claim 1, characterized in that: In the S20, the column adopts the following structure and installation method: the cross-sectional size of the column is 400mm*400mm, and the column is composed of four 100mm*100mm*2.5mm square steels welded by welding blocks; the installation method of the column is: a 12mm thick steel plate is welded at the bottom of the column, and the steel plate is fixed to the concrete base by expansion bolts, and at the same time, two cross 50mm*50mm square steels are added in the horizontal direction of the column to form shear braces for reinforcement; after the column is installed, steel bars with a diameter of 20mm are planted to the bottom plate, and then steel bars are added horizontally and welded to the planted steel bars and the column, and finally concrete is poured for reinforcement.

3. The construction method of the large-span protective shed according to claim 1, characterized in that: In the S30, the main beam adopts the following structure and method: the main beam is welded and assembled with several 400mm*600mm*2mm square steels, and the middle part of the main beam is arched upward by 1.2m; the main beam is installed by welding a steel plate at the fixed point between the main beam and the column, the steel plate is fully welded to the column, and the steel plate is locked to the column by bolts, and the lower end of the connection position between the main beam and the column is welded with an angle steel for support and fixation, and at the same time, a diagonal brace is set between the main beam and the column to form a secondary reinforcement.

4. The construction method of the large-span protective shed according to claim 1, characterized in that: The large beam is welded from several 50mm*50mm*2mm square steels. The cross section of the large beam is 400mm*600mm, and the spacing between adjacent large beams is no more than 5m. The small beam is made of a single 50mm*50mm square steel. The spacing between adjacent small beams is 0.9m, and both ends of the large and small beams are welded to the main beam by full welding.

5. The construction method of the long-span protective shed according to claim 4, characterized in that: In said S50, when laying and installing the color steel tiles, the following method is adopted: a slide rail with a slide groove is installed on the top surface of the large beam and the small beam, the slide rail extends along the length direction of the beam, and the color steel tiles are equally divided into several sections along the length direction of the main beam. The width of each section of color steel tiles is the distance between adjacent large beams, and several rows of sliders are set on the plane of each section of color steel tiles. The spacing between the rows of sliders is the spacing between adjacent small beams. The sliders are slidably connected to the slide grooves of the slide rails, and both ends of each section of color steel tiles corresponding to the two main beams are connected and fixed to the main beams with fixing parts.

6. The construction method of the long-span protective shed according to claim 5, characterized in that: Regarding the use of fixing parts to connect and fix with the main beam, the following structure and method are adopted: the fixing parts adopt a sealing block set on the plane of the color steel tile and a sealing plug set on the side of the sealing block away from the slider. When the color steel tile slides and adapts to the slide groove of several slide rails through several sliders, the color steel tile is further pushed to make the sealing plug fit into the end of the slide groove, and the sealing block is abutted against the end of the slide rail, and the sealing block is further locked and fixed to the end face of the slide rail by screws.

7. The construction method of the long-span protective shed according to claim 5, characterized in that: In the S50, after the installation of each section of the color steel tile is completed, the following method is adopted: a waterproof aluminum film is pasted between adjacent sections of the color steel tile to improve the sealing between the adjacent sections of the color steel tile.

8. Application of a large-span protective shed in the processing of steel cages, characterized in that: It includes a large-span protective shed, which is processed by the construction method described in any one of claims 1 to 7. A working platform for welding and processing steel cages is provided in the large-span protective shed, and an inclined plate is provided on one side of the working platform. The columns on both sides of the large-span protective shed cross the inclined plate. After the steel cage processing is completed on the working platform, the steel cage is pushed outside the large-span protective shed with the help of the inclined plate for subsequent handling operations.

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