Folded plate type single-layer steel roof original form splicing method

Abstract

The invention discloses a folded plate type single-layer steel roof original form assembling method which comprises the following steps that 1, a steel roof is divided into a plurality of roof units, the roof units are connected through inlaying rods, a supporting column is arranged at the top of a core tube, each roof unit is divided into an upper section and a lower section, and the upper section and the lower section are connected through the inlaying rods; the lower-section roof unit is divided into main rod pieces and web members connected between the main rod pieces; 2, the main rod pieces are hoisted one by one, the lower ends of the main rod pieces are temporarily connected to the annular waist beam, the upper ends of the main rod pieces are supported on the supporting columns, and web members are installed; 3, assembling an upper-section roof unit on the ground, hoisting the upper-section roof unit, temporarily connecting the upper end of the upper-section roof unit with the central ring beam, temporarily connecting the lower end of the upper-section roof unit with the lower-section roof unit, and welding the upper-section roof unit and the lower-section roof unit to form an integral roof unit; and 4, integral hoisting is carried out. The roof units are assembled by using the existing core tube structure and the mounted annular waist beam as the jig frame, so that the problem of insufficient field is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel roof installation, in particular to a method for assembling a folded plate type single-layer steel roof in its original form. Background Art

[0002] A theater is a venue dedicated to performing drama, plays, opera, song and dance, folk art, music, and other entertainment. It is typically divided into a stage and an auditorium. With the continuous development of society, steel building structures are becoming more and more common. Steel structures offer distinct advantages in environmental protection, energy conservation, high efficiency, and factory-based production. For example, stadiums, theaters, and airports can utilize pure steel structures to speed up construction and increase usable space.

[0003] Currently, in a certain acrobatic art center project, its main structure is a steel structure with a regular 24-sided polygon and a diameter of 78m at the widest point in the middle. The main structure is one floor above ground, with a structural height of 41.8m and two floors underground. The stage is a lifting stage. The main body adopts a folded plate single-layer steel roof structure, which is the main load-bearing and lateral resistance system of the structure. The roof structure is composed of 16 standard steel roof units. The bottom of the roof structure is connected to the finished hinged support of the top of the basement concrete column through the triangular wing steel column, and the top is connected to the central ring beam. The top of the triangular wing steel column is connected as a whole through a circular waist beam. The core tube adopts shear wall. The steel structure has the following problems during construction: the site is small, the steel roof is hoisted in blocks, and all need to be assembled on the ground. The site requirements are large, and the actual area on site is seriously insufficient, which affects the construction progress. Summary of the Invention

[0004] In view of the above problems, the present invention provides a method for assembling a folded plate single-layer steel roof in its original form.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a method for assembling a folded plate single-layer steel roof in its original form. The steel structure includes delta-wing steel columns, an annular waist beam connected between the delta-wing steel columns, a central ring beam, and a steel roof installed between the central ring beam and the delta-wing steel columns. The method comprises the following steps: Step 1: Divide the steel roof into multiple roof units. The roof units are connected by patching rods. Support columns are set at the top of the core tube to divide the roof units into upper and lower sections. The lower section roof unit is divided into main rods and web members connected between the main rods. Step 2: Assemble the lower roof unit, hoist the main members one by one, temporarily connect the lower end of the main member to the circular waist beam, support the upper end on the support column, and install the web members between the main members; Step 3: Assemble the upper roof unit, assemble the upper roof unit on the ground, hoist the upper roof unit, temporarily connect the upper end of the upper roof unit to the central ring beam, temporarily connect the lower end to the lower roof unit, and weld the upper roof unit and the lower roof unit to form an integral roof unit; Step 4: Overall hoisting: hoist the overall roof unit to the installation location, rigidly connect its upper end to the center ring beam, and rigidly connect its lower end to the delta wing steel column. After the installation of two adjacent roof units is completed, connect them with patching rods.

[0006] The present invention provides a folding plate type single-layer steel roof original form assembly method, further comprising a ground assembly site, where the roof units are assembled as a whole, and then the roof units are hoisted to an installation position for lifting.

[0007] The present invention provides a method for assembling a folded plate single-layer steel roof in its original form, further comprising a tire frame structure, wherein the tire frame structure comprises a roadbed box arranged at intervals along the length direction of the roof unit, a vertical pole provided on the roadbed box to support a central main pole member, a supporting column provided on the roadbed box and located on both sides of the roof unit, and a crossbeam connected between the supporting columns, wherein a corbel is fixedly provided on the side of the supporting column, and the outer main pole member is supported on the corbel, and a cantilever rod is cantilevered and installed on the crossbeam toward the inner side of the roof unit, and a walkway plate is laid on the cantilever rod; When assembling the roof unit, the main poles are first hoisted onto the frame structure, and the vertical poles and corbels support and position the main poles. Then the webs are installed between the main poles. When connecting the main poles and the webs, the workers weld them on the walkway board.

[0008] The present invention provides a method for assembling a folded plate single-layer steel roof in its original form. Furthermore, when the lower section roof unit is assembled on the core tube, a mounting beam is provided below the main rod, one end of the mounting beam is fixedly connected to the annular waist beam, and the other end is fixedly connected to the core tube. Cantilevered steel platforms are provided at intervals along the length direction of the mounting beam, and workers perform welding construction of the web members and the main rods on the steel platforms.

[0009] The present invention provides a method for assembling a folded plate single-layer steel roof in its original form. Furthermore, climbing rods are fixedly installed on the upper end surface of the main rod of the lower section roof unit along the length direction thereof. The climbing rods are arranged in pairs, and cross rods are arranged between the climbing rods. The cross rods and the climbing rods form a ladder structure. After the main rod is hoisted into place, the staff climbs to the hook position through the ladder structure to unhook.

[0010] The present invention provides a folding plate type single-layer steel roof original form assembly method. Further, when the roof units are installed, they are installed symmetrically with their centers as the center of the circle. After every two adjacent roof units are installed, they are connected by patching rods.

[0011] The present invention provides a folding plate type single-layer steel roof original form assembly method. Further, the roof unit is assembled in sections on the ground and assembled in sections at high altitude. When assembling the sections at high altitude, support frames are provided at the splicing points.

[0012] The present invention provides a folding plate type single-layer steel roof original form assembly method. Further, the temporary connection in step 3 is connected by using a connecting plate. After the integral roof unit is formed, the connecting plate is cut off and the integral roof unit is hoisted to the installation position for installation.

[0013] The present invention provides a folding plate type single-layer steel roof original form assembly method. Further, the web members are assembled into blocks on the ground and then hoisted as a whole between the main rods for installation.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The roof units are assembled simultaneously by combining ground cradle assembly and high-altitude cradle assembly, which solves the problem of limited site and effectively improves the construction progress; 2. This application utilizes the existing core tube structure and the installed annular waist beam as a cradle to assemble the roof unit, thus solving the problem of insufficient space. At the same time, the roof unit is divided into two sections. The lower section is assembled on the ground with the webs installed on the cradle for the entire unit to be hoisted, while the upper section is assembled on the ground. High-altitude assembly reduces high-altitude welding work, improves construction efficiency and safety. 3. Install an installation beam at the bottom of the main member. The installation beam uses the installed annular waist beam and core tube as the installation base point. A steel platform is cantilevered on the installation beam to solve the problem of high-altitude assembly construction platform installation. 4. A ladder structure is set on the main pole to facilitate construction workers to climb up to the main pole for unhooking, which is convenient for construction and highly safe.

[0015] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of assembling the roof unit of the present invention on the core tube; Figure 3 This is a detailed diagram of the assembly of the core tube of the present invention; Figure 4 This is a schematic diagram of the ground assembly of the roof unit of the present invention; Figure 5 This is a schematic diagram of the installation of the first roof unit of the present invention; Figure 6 This is a schematic diagram of the installation of the second roof unit of the present invention; Figure 7 This is a schematic diagram of the installation of the third and fourth roof units of the present invention; Figure 8 This is a schematic diagram of the installation of the patching rod of the present invention; Figure 9 This is a schematic diagram of the circular installation of the roof unit of the present invention.

[0017] Reference numerals: 1. Delta wing steel column; 2. Ring waist beam; 3. Center ring beam; 4. Steel roof; 5. Roof unit; 5.1. Main member; 5.2. Web member; 6. Inlay rod; 7. Roadbed box; 8. Vertical pole; 9. Support column; 10. Cross beam; 11. Cantilever rod; 12. Walkway slab; 13. Core tube; 14. Support column; 15. Installation beam; 16. Steel platform; 17. Climbing pole; 18. Cross bar. DETAILED DESCRIPTION

[0018] like Figures 1-9 As shown, the present invention provides a method for assembling a folded plate single-layer steel roof in its original form. The steel structure includes delta-wing steel columns 1, an annular waist beam 2 connected between the delta-wing steel columns 1, a central ring beam 3, and a steel roof 4 installed between the central ring beam 3 and the delta-wing steel columns 1. The method includes the following steps: Since the steel roof 4 in the embodiment of the present application is a folded plate single-layer steel roof 4 structure, the steel roof 4 is divided into multiple roof units 5, and two adjacent roof units 5 are connected by patching rods 6. Since the maximum length of the roof unit 5 is about 38.3m, the width is 9.7m, and the height is 8m, the single unit volume is relatively large, and the size of the construction site is extremely high. However, due to the small site in this application, the steel roof 4 is hoisted in blocks and all need to be assembled on the ground. The site requirements are large, and the actual area on site is seriously insufficient, which seriously affects the construction progress. Therefore, in order to solve the above problem, the present application adopts a method of combining ground assembly and high-altitude assembly for simultaneous construction, which solves the problem of insufficient site area, ensures the assembly efficiency of the roof unit 5, and shortens the construction period.

[0019] When assembled on the ground, the roof unit 5 can be assembled on the ground and hoisted as a whole, or assembled in sections on the ground and assembled in sections at high altitude according to actual lifting requirements, and support frames are set at the splicing points for support.

[0020] During ground assembly, a cradle structure is set up at the assembly site. The bottom site of the cradle structure should be flat and solid, and at the same time meet the bearing capacity of the foundation and the requirements of splicing components. The cradle structure includes a roadbed box 7 arranged at intervals along the length direction of the roof unit 5, a vertical pole 8 provided on the roadbed box 7 to support the middle main pole 5.1, a supporting column 9 provided on the roadbed box 7 and located on both sides of the roof unit 5, and a crossbeam 10 connected between the supporting columns 9. A corbel is fixedly installed on the side of the supporting column 9, and the outer main pole 5.1 is supported on the corbel. A cantilever rod 11 is cantilevered on the crossbeam 10 toward the inner side of the roof unit 5, a walkway board 12 is laid on the cantilever rod 11, and guardrails are installed on both sides of the walkway board 12 to form a walking passage.

[0021] When assembling the roof unit 5, the main member 5.1 is first hoisted onto the cradle structure. The vertical rods 8 and brackets support and position the main member 5.1. Then, the web members 5.2 are installed between the main members 5.1. When connecting the main member 5.1 and the web members 5.2, the workers weld them on the walkway plate 12. The above-mentioned cradle structure can meet the needs of assembling and welding large-volume steel structures, making construction more convenient.

[0022] During high-altitude assembly, a support column 14 is set at the top of the core tube 13 to divide the roof unit 5 into two sections, the lower section roof unit 5 is divided into a main rod 5.1 and a web rod 5.2 connected between the main rods 5.1, the main root hoisting the main rod 5.1, the lower end of the main rod 5.1 is temporarily connected to the annular waist beam 2 through a connecting plate, and the upper end is supported on the support column 14, the web rod 5.2 is assembled in blocks on the ground, hoisted as a whole between the main rods 5.1, and the main rod 5.1 is connected to the web rod 5.2; thereafter, the upper section roof unit 5 is assembled on the ground, hoisted as a whole, the upper end of the upper section roof unit 5 is temporarily connected to the central ring beam 3 through a connecting plate, and the lower end is temporarily connected to the lower section roof unit 5 through a connecting plate, the upper section roof unit 5 and the lower section roof unit 5 are welded to form an integral roof unit 5, the connecting plate is cut off, and the integral roof unit 5 is hoisted to the installation position for installation.

[0023] When the lower roof unit 5 is assembled on the core tube 13, a mounting beam 15 is set below the main member 5.1. One end of the mounting beam 15 is fixedly connected to the annular waist beam 2, and the other end is fixedly connected to the core tube 13. Cantilevered steel platforms 16 are arranged at intervals along the length direction of the mounting beam 15. The steel platforms 16 are arranged horizontally, and workers can perform welding construction of the web members 5.2 and the main member 5.1 on the steel platforms 16.

[0024] Furthermore, climbing rods 17 are fixedly installed on the upper end surface of the main rod 5.1 of the lower roof unit 5 along its length direction. The climbing rods 17 are arranged in pairs, and cross rods 18 are arranged between the climbing rods 17. The cross rods 18 and the climbing rods 17 form a ladder structure. After the main rod 5.1 is hoisted into place, the staff unhooks it through the ladder hook position of the ladder structure. The above arrangement solves the problems of high-altitude assembly platform setting and hoisting unhooking.

[0025] When installing the roof unit 5, it is installed symmetrically with its center as the center of the circle. The roof unit 5 is hoisted to the installation position, and its upper end is rigidly connected to the central ring beam 3, and its lower end is rigidly connected to the delta wing steel column 1. After every two adjacent roof units 5 are installed, the two are connected by an embedded rod 6.

[0026] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A folded plate type single-layer steel roof original form assembly method, the steel structure includes delta wing steel columns (1), an annular waist beam (2) connected between the delta wing steel columns (1), a central ring beam (3) and a steel roof (4) installed between the central ring beam (3) and the delta wing steel columns (1), characterized in that: The following steps are involved: Step 1: The steel roof (4) is divided into a plurality of roof units (5), the roof units (5) are connected by patching rods (6), a support column (14) is provided on the top of the core tube (13), and the roof unit (5) is divided into two sections, the lower section roof unit (5) is divided into main rods (5.1) and web rods (5.2) connected between the main rods (5.1); Step 2: Assemble the lower roof unit (5), hoist the main rods (5.1) one by one, temporarily connect the lower ends of the main rods (5.1) to the annular waist beam (2), support the upper ends on the support columns (14), and install the web members (5.2) between the main rods (5.1); Step 3: Assembling the upper roof unit (5), assembling the upper roof unit (5) on the ground, hoisting the upper roof unit (5), temporarily connecting the upper end of the upper roof unit (5) to the central ring beam (3), temporarily connecting the lower end to the lower roof unit (5), and welding the upper roof unit (5) and the lower roof unit (5) to form an integral roof unit (5); Step 4: hoist the entire roof unit (5) to the installation location, rigidly connect the upper end of the roof unit to the center ring beam (3), and rigidly connect the lower end to the delta wing steel column (1). After the installation of two adjacent roof units (5), connect them with the patching rod (6).

2. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: It also includes a ground assembly site, where the roof unit (5) is assembled as a whole, and then the roof unit (5) is hoisted to the installation position for lifting.

3. The original form assembly method of a folded plate single-layer steel roof according to claim 2 is characterized in that: The structure also includes a tire frame structure, which includes a roadbed box (7) arranged at intervals along the length direction of the roof unit (5), a vertical pole (8) provided on the roadbed box (7) to support the middle main pole (5.1), a supporting column (9) provided on the roadbed box (7) and located on both sides of the roof unit (5), and a crossbeam (10) connected between the supporting columns (9), wherein a corbel is fixedly provided on the side of the supporting column (9), and the outer main pole (5.1) is supported on the corbel, and a cantilever rod (11) is cantilevered toward the inner side of the roof unit (5) on the crossbeam (10), and a walkway plate (12) is laid on the cantilever rod (11); When assembling the roof unit (5), the main rod (5.1) is first hoisted onto the frame structure, the vertical rod (8) and the bracket support and position the main rod (5.1), and then the web (5.2) between the main rod (5.1) is installed. When connecting the main rod (5.1) and the web (5.2), the staff welds them on the walkway plate (12).

4. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: When the lower roof unit (5) is assembled on the core tube (13), a mounting beam (15) is provided below the main rod (5.1). One end of the mounting beam (15) is fixedly connected to the annular waist beam (2), and the other end is fixedly connected to the core tube (13). Cantilevered steel platforms (16) are provided at intervals along the length direction of the mounting beam (15). Workers perform welding construction of the web members (5.2) and the main rod (5.1) on the steel platforms (16).

5. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: A climbing rod (17) is fixedly installed on the upper end surface of the main rod (5.1) of the lower roof unit (5) along its length direction. The climbing rods (17) are arranged in pairs, and a cross rod (18) is arranged between the climbing rods (17). The cross rod (18) and the climbing rod (17) form a ladder structure. After the main rod (5.1) is hoisted in place, a worker climbs to the hook position through the ladder structure to unhook.

6. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: When the roof unit (5) is installed, it is installed symmetrically with its center as the center of the circle. After every two adjacent roof units (5) are installed, a patching rod (6) is inserted between them to connect them.

7. The original form assembly method of a folded plate single-layer steel roof according to claim 2 is characterized in that: The roof unit (5) is assembled in sections on the ground and in sections at high altitude. When assembling the sections at high altitude, a support frame is provided at the joint point.

8. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: The temporary connection in step 3 is performed by using a connecting plate. After the integral roof unit (5) is formed, the connecting plate is cut off and the integral roof unit (5) is hoisted to the installation position for installation.

9. The original form assembly method of a folded plate single-layer steel roof according to claim 1 is characterized in that: The web members (5.2) are assembled into blocks on the ground and then hoisted as a whole between the main members (5.1) for installation.

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