A high-altitude splicing construction method for integrated special-shaped steel structure and decorative panel

Abstract

The present invention relates to the field of building construction technology, specifically to an integrated high-altitude splicing construction method of special-shaped steel structures and decorative panels, comprising: main structure columns and main structure flower rack beams, the main structure columns are connected with main structure parapets and transverse steel frame beams, the main structure flower rack beams are connected with 2# steel tie rods, the 2# steel tie rods and transverse steel frame beams are connected with galvanized steel pipes, a metal roof panel is provided above the 2# steel tie rods, and a 1# longitudinal steel frame beam is provided at one end of the main structure flower rack beam away from the 2# steel tie rods; the beneficial effect is: the present invention achieves high-altitude splicing of vacant parts of steel beam support points during ground assembly, and the vacant parts are only around the support points. There is no need to carry out large-scale outsourcing of aluminum plates at an altitude of 100 meters. Conventional cantilever scaffolding is used as a carrier for small-scale aluminum plate assembly, thereby improving the construction process of large-scale high-altitude splicing of decorative panels and greatly reducing the risk of high-altitude operations.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a high-altitude splicing construction method for integrating special-shaped steel structures and decorative panels. Background Art

[0002] In recent years, with the development of urban construction, the appearance of buildings has continued to develop, and the design of roof decoration surfaces has become more and more diversified. Among them, cantilevered sloped roofs are more common, and they are beautiful when combined with light strips. However, the construction of cantilevered sloped roofs has become one of the major difficulties in engineering construction.

[0003] With the continuous improvement of construction technology, the design and construction of cantilevered slope roofs have also been continuously improved. Usually, cantilevered steel structure roofs and decorative panels are used to replace traditional cantilevered concrete slope roofs. However, there are still the following shortcomings:

[0004] 1. When the cantilever length of the cantilever steel structure slope roof is large (such as a cantilever length of 4.2 meters), the building is high (such as the top elevation of the cantilever steel structure slope roof is at 100.55), and the bottom of the steel structure is provided with an external aluminum plate as a decorative plate, there are characteristics of high altitude operation difficulty, high safety risk, long construction period and high cost;

[0005] 2. Traditional cantilevered steel structure slope roofs are connected to the main structure using pre-buried bolts, which poses the risk of insufficient construction precision and errors. Insufficient concrete vibration at the pre-buried bolt locations can lead to bolt leakage and the risk of steel bar corrosion.

[0006] 3. It is difficult to control the precision of splicing traditional cantilevered steel structure slope roofs at a height of 100 meters, and effective precision control is impossible.

[0007] In order to solve the above problems, the present invention proposes a high-altitude splicing construction method for integrating special-shaped steel structures and decorative panels. Summary of the Invention

[0008] The purpose of the present invention is to provide a high-altitude splicing construction method for integrating special-shaped steel structures and decorative panels to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a special-shaped steel structure, comprising:

[0010] Main structure columns, main structure parapets are provided between the main structure columns, a plurality of evenly distributed transverse steel frame beams are provided on one side of the main structure columns and the main structure parapets, the transverse steel frame beams are connected to an outer aluminum veneer, and a steel structure cantilever is provided on the inner side of one end of the outer aluminum veneer;

[0011] The main structure flower rack beam is located on one side of the main structure column. The main structure flower rack beam is connected with several 2# steel tie rods corresponding to the transverse steel frame beam. The main structure flower rack beam is connected with a first steel bar. Several 2# steel tie rods and transverse steel frame beams are connected with galvanized steel pipes. A metal roof panel is provided above the 2# steel tie rod. The main structure flower rack beam is provided with a 1# longitudinal steel frame beam at one end away from the 2# steel tie rod.

[0012] Preferably, a plurality of embedded steel plates are provided at the upper end of the main structure column and the end close to the transverse steel frame beam, the embedded steel plates are welded with second steel bars and third steel bars, the embedded steel plates are fixedly connected to the transverse steel frame beam, and the transverse steel frame beam is welded to the galvanized steel pipe.

[0013] Preferably, a 2# longitudinal steel frame beam is provided at one end where the transverse steel frame beam and the 2# steel tie rod are connected, and welding is adopted between the 2# longitudinal steel frame beam and the steel structure cantilever plate, the transverse steel frame beam, and the steel structure cantilever plate and the transverse steel frame beam. A water channel is formed by fixing a galvanized steel plate with an angle steel on the upper part of the steel structure cantilever plate.

[0014] Preferably, the outer aluminum veneer is connected to the transverse steel frame beam and the steel structure cantilever plate with rivets and self-tapping screws, the self-tapping screws are connected with connecting angle steels, foam strips are provided between the joints of the outer aluminum veneer, and the outer aluminum veneer is connected with sealant.

[0015] Preferably, the embedded steel plates on the outer side of the parapet beam of the main structure are respectively welded with the first steel frame beam frame and the second steel frame beam frame, the first steel frame beam frame and the second steel frame beam frame are connected to the 2# longitudinal steel frame beam by bolts, a laser positioning transmitting device is provided on the top of the first steel frame beam frame, the laser positioning transmitting device emits a light beam, and a laser positioning receiving device is provided on the top of the second steel frame beam frame.

[0016] Preferably, the missing aluminum panels at the bottom of the outer aluminum panel unit are connected in the form of overlap, and waterproof rivets, glass sealant and aluminum welding rods are provided between the gaps of the outer aluminum panels. The outer aluminum panels are connected with M20 high-strength bolts and connecting plates.

[0017] Preferably, the 2# steel tie rod is welded with the 1# steel tie rod, and the 1# steel tie rod, the 2# steel tie rod and the galvanized steel pipe are all welded, the galvanized steel pipe is threadedly connected with the 2# I-shaped secondary purlin, the 2# I-shaped secondary purlin is threadedly connected with the 1# I-shaped secondary purlin, the 1# I-shaped secondary purlin is threadedly connected with an aluminum alloy fixing bracket, the aluminum alloy fixing bracket is threadedly connected with a galvanized steel plate, the galvanized steel plate is connected to the metal roof panel through the aluminum alloy fixing bracket, the galvanized steel plate is connected with a bent steel plate, the metal roof panel is fixedly connected with an aluminum alloy clamp, and one end of the metal roof panel is provided with a waterproof plug and a water-proof steel plate.

[0018] Preferably, the main structure flower rack beam is welded with a steel tie rod frame, and the steel tie rod frame is welded to the first steel frame beam frame and the second steel frame beam frame respectively. The main structure flower rack beam is welded to the 1# longitudinal steel frame beam through the embedded steel plate. The main structure flower rack beam, the transverse steel frame beam and the outer aluminum single plate are all connected to the ground steel structure support rod. The other end of the ground steel structure support rod is provided with a support plate, and reinforcing ribs are provided between the ground steel structure support rod and the side wall of the support plate.

[0019] The above-mentioned method for high-altitude splicing construction of decorative panels for special-shaped steel structures includes the following steps:

[0020] S1: First, BIM simulates the ground support system and ground test:

[0021] Digital and visual BIM software simulates the ground support system and uses the support frame as a carrier for ground three-dimensional assembly. After completion, a ground test run with precision control of the laser positioning device is carried out;

[0022] S2: Subsequently, the embedded steel plate is positioned, installed and reviewed: the first steel bar is welded to the steel plate to form a whole, and the steel bar and the embedded steel plate are fully welded. The weld should be even and full, and the welding slag needs to be cleaned after welding is completed; before the construction of the embedded parts, the embedded steel plate positioning needs to be reviewed, based on the principle of multi-axis positioning and secondary review. The embedded steel plate is welded to the beam and column stirrups, and the positioning of the embedded steel plate needs to be reviewed again after the concrete pouring is completed; after the main structure construction is completed and reaches the design strength requirement, the embedded steel plate needs to be reviewed before the construction of the cantilever steel structure slope roof. The embedded steel plate review includes the steel plate positioning, steel plate size, steel plate verticality, and steel plate flatness review. Subsequent operations can only be carried out after the review is correct;

[0023] S3: Then, the steel frame beams and decorative panels are assembled three-dimensionally on the ground: the steel frame beams are installed on the ground support system. The horizontal steel frame beams are connected to the galvanized steel pipes by welding. The 2# longitudinal steel frame beams are welded to the steel structure cantilever plate and the horizontal steel frame beams. The steel structure cantilever plate and the horizontal steel frame beams are welded together. The galvanized steel plate is fixed to the upper part of the steel structure cantilever plate with angle steel to form a water guide groove. After inspection and acceptance, the external aluminum veneer construction is carried out. The external aluminum veneer plate is fixed to the horizontal steel frame beam and the steel structure cantilever plate with rivets and self-tapping screws. The joints between the aluminum veneers are filled with foam strips and sealed with sealant on the outside. After the installation of the steel frame beams and the bottom decorative panels is completed, the laser positioning and receiving device are installed.

[0024] S4: After that, the first steel frame beam is hoisted and installed: After the steel structure frame is assembled and passed the inspection, it is hoisted and installed using a tower crane and welded to the pre-buried steel plate on the outside of the parapet beam of the main structure. During the welding process, the workers stand on the existing cantilevered external scaffolding at the bottom to perform the work;

[0025] S5: Afterwards, the second steel frame is hoisted and installed: a tower crane is used to hoist and install the second steel frame, which is then welded to the pre-buried steel plate on the outside of the beam. During the welding process, workers stand on the existing cantilevered external scaffolding at the bottom to perform the work, and the 2# longitudinal steel frames connecting the steel frames are connected by bolts. A laser emitting device at the top of the first steel frame emits a light beam, and the top of the second steel frame receives the light beam. The ground monitoring device is used to check and control the accuracy of the different block units and perform calibration. The above operation is then repeated until the ring steel frame is installed.

[0026] S6: Then, the small gaps in the bottom aluminum veneer are installed and the joints are processed: the gaps in the bottom aluminum veneer of each block unit are connected in the form of overlap, first connected with waterproof rivets, then the joints are treated with special glass sealant, and the outside is fully welded with aluminum welding rods;

[0027] S7: Afterwards, the steel tie rod frame is assembled: 1# steel tie rod, 2# steel tie rod and galvanized steel pipe are all connected by welding, galvanized steel pipe and 2# X-shaped secondary purlin are connected by bolts, 2# X-shaped secondary purlin and 1# X-shaped secondary purlin are connected by bolts, aluminum alloy fixing bracket and 1# X-shaped secondary purlin and galvanized steel plate are all connected by threading. After the assembly is completed, it is inspected and accepted;

[0028] S8: Hoisting and installation of steel tie rod frame: After the steel tie rod frame is accepted, the steel tie rod frame is hoisted and installed. It is welded to the steel frame and the main structure flower rack beam. The workers stand on the welded steel frame and hang the lifeline;

[0029] S9: Metal roof panel installation: The metal roof panel and the galvanized steel sheet are connected with aluminum alloy fixing brackets, and the metal roof panel blocks are fixed with aluminum alloy clamps;

[0030] S10: 1# longitudinal steel frame beam installation: 1# longitudinal steel frame beam and the embedded steel plate of the main structure flower frame beam are welded 90 degrees;

[0031] S11: Installation of aluminum veneer panels on the outside of the 1# longitudinal steel frame beam, main structure flower rack beam, and metal roof panels at the connection locations: The aluminum veneer panels are connected to the connection plates with M20 high-strength bolts, the connection plates are connected to the 1# longitudinal steel frame beam with self-tapping screws, the galvanized steel plates are connected to the bent steel plates and the connecting angle steel with self-tapping screws, the aluminum veneer panels are connected to the connecting angle steel with rivets, and the bent steel plates are connected to the main structure flower rack beam with welding;

[0032] S12: Inspection and acceptance: Inspection and acceptance are carried out after the installation is completed.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention uses BIM digital modeling to divide the large-span roof cantilever steel structure and decorative panels into different units, and digitally simulates the design of ground support points and support frames, thereby reducing the construction period and construction costs of on-site hoisting and support frame entity testing;

[0035] The present invention uses BIM visualization to simulate the construction process of the three-dimensional ground block assembly and high-altitude splicing of the steel structure and the bottom auxiliary decorative panels, and realizes the whole process construction control of the assembly, hoisting, precision control, and disclosure of different block units;

[0036] During the ground assembly process, the present invention first sets up a steel frame support system at the bottom, then installs the outer aluminum plate, and finally installs the steel beam, which improves the traditional construction process of first installing the steel frame beam and then splicing the auxiliary decorative panels.

[0037] The present invention pre-embeds steel plates on the roof structure layer and welds them to the steel structure. High-altitude splicing uses laser positioning equipment for precision control: a laser positioning instrument and receiving device are installed on the top of each block unit. During the high-altitude assembly process, the laser positioning instruments and receiving devices of adjacent blocks are used for precision calibration to achieve facade precision control. When the boundaries of different blocks are aligned, it can be considered that the longitudinal alignment has been achieved. The use of a laser positioning precision control system avoids the problem of insufficient positioning accuracy during high-altitude assembly.

[0038] The present invention achieves high-altitude splicing of the vacant parts of the steel beam support points during the ground assembly process. The vacant parts are only around the support points, and there is no need to carry out large-scale outsourcing of aluminum panels at an altitude of 100 meters. Conventional cantilever scaffolding is used as a carrier for small-scale aluminum panel assembly, which improves the construction process of large-scale high-altitude splicing of decorative panels and greatly reduces the risks of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is the plan layout of the cantilevered steel structure slope roof of the present invention;

[0040] Figure 2 This is a block plan view of the steel frame beam framework of the present invention;

[0041] Figure 3 To invent the block plan of steel tie rod frame;

[0042] Figure 4 To invent the cross-section of the cantilevered steel structure slope roof (position of the main structural columns);

[0043] Figure 5 To invent the cross-section of the cantilevered steel structure slope roof (parapet location);

[0044] Figure 6 To invent the block section of the steel beam frame;

[0045] Figure 7 To invent a block section of a steel tie rod frame;

[0046] Figure 8 To invent the node marking diagram of the cantilever steel structure slope roof;

[0047] Figure 9 For invention Figure 8 A schematic diagram of the structure at center A;

[0048] Figure 10 For invention Figure 8 A magnified schematic diagram of the structure at B in the middle;

[0049] Figure 11 For invention Figure 8 A magnified schematic diagram of the structure at C in the middle;

[0050] Figure 12 For invention Figure 8 A magnified schematic diagram of the structure at D in the middle;

[0051] Figure 13 For invention Figure 8 A magnified schematic diagram of the structure at E in the middle;

[0052] Figure 14 For invention Figure 8 A magnified schematic diagram of the structure at F in the middle;

[0053] Figure 15 To invent the processing diagram of aluminum veneer joints in vacant positions;

[0054] Figure 16 Schematic diagram of the structure of the special-shaped steel structure and the decorative panel ground support frame;

[0055] Figure 17 To invent a schematic diagram of high-altitude block assembly laser positioning control;

[0056] Figure 18 The invention provides a construction process flow chart.

[0057] Figure: 1. Perimeter beam of the main structure; 2. 1# longitudinal steel frame beam; 3. Parapet of the main structure; 4. Column of the main structure; 5. 2# longitudinal steel frame beam; 6. Horizontal steel frame beam; 7. 1# steel tie rod; 8. 2# steel tie rod; 9. Embedded steel plate; 10. First steel bar; 11. Second steel bar; 12. Metal roof panel; 13. Aluminum alloy fixing bracket; 14. Galvanized steel plate; 15. 1# I-shaped secondary purlin; 16. 2# I-shaped secondary purlin; 17. Galvanized steel pipe; 18. Steel structure cantilever plate; 19. Water guide channel; 20. External aluminum veneer; 21. Bent steel plate; 22. Waterproof Plug; 23. Water-proof steel plate; 24. Aluminum alloy clamp; 25. M20 high-strength bolt; 26. Connecting plate; 27. Sealant; 28. Foam strip; 29. ​​Pull rivet; 30. Self-tapping screw; 31. Connecting angle steel; 32. Third steel bar; 33. First steel frame; 34. Second steel frame; 35. Steel tie rod frame; 36. Glass sealant; 37. Aluminum welding rod full welding; 38. Waterproof rivet; 39. Ground steel structure support rod; 40. Support plate; 41. Reinforcement rib; 42. Laser positioning transmitter; 43. Light beam; 44. Laser positioning receiver. DETAILED DESCRIPTION

[0058] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0061] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0062] See also Figures 1 to 18 The present invention provides a technical solution: a special-shaped steel structure, the special-shaped steel structure comprising:

[0063] The main structure columns 4 are provided with a main structure parapet 3 between the main structure columns 4. A plurality of evenly distributed transverse steel frame beams 6 are provided on one side of the main structure columns 4 and the main structure parapet 3. The transverse steel frame beams 6 are connected with an outer aluminum single plate 20. A steel structure cantilever plate 18 is provided on the inner side of one end of the outer aluminum single plate 20. A plurality of pre-buried steel plates 9 are provided on the upper end of the main structure column 4 and the end close to the transverse steel frame beam 6. The pre-buried steel plates 9 are welded with a second steel bar 11 and a third steel bar 32. The buried steel plate 9 is fixedly connected to the horizontal steel frame beam 6, and the horizontal steel frame beam 6 is welded to the galvanized steel pipe 17; the end where the horizontal steel frame beam 6 and the 2# steel tie rod 8 are connected is provided with the 2# longitudinal steel frame beam 5, and the 2# longitudinal steel frame beam 5 and the steel structure cantilever plate 18, the horizontal steel frame beam 6, and the steel structure cantilever plate 18 and the horizontal steel frame beam 6 are all welded. The upper part of the steel structure cantilever plate 18 is fixed with the galvanized steel plate 14 to form a water guide 19; the outer aluminum single plate 20 is connected to the horizontal steel frame beam 6, The steel structure cantilevers 18 are connected with rivets 29 and self-tapping screws 30, and the self-tapping screws 30 are connected with connecting angle steels 31. Foam strips 28 are provided between the joints of the outer aluminum veneer 20, and the outer aluminum veneer 20 is connected with sealant 27; the embedded steel plates 9 on the outer side of the parapet 3 beam of the main structure are respectively welded with the first steel frame beam frame 33 and the second steel frame beam frame 34, and the first steel frame beam frame 33 and the second steel frame beam frame 34 are bolted to the 2# longitudinal steel frame beam 5. A laser positioning transmitting device 42 is provided on the top of the first steel frame beam frame 33, and the laser positioning transmitting device 42 emits a light beam 43. A laser positioning receiving device 44 is provided on the top of the second steel frame beam frame 34; the vacant aluminum veneer at the bottom of the outer aluminum veneer 20 unit is overlapped, and waterproof rivets 38, glass sealant 36 and aluminum welding rod full welding 37 are provided between the gaps of the outer aluminum veneer 20. The outer aluminum veneer 20 is connected with M20 high-strength bolts 25 and connecting plates 26;

[0064] The main structure flower rack beam 1 is located on one side of the main structure column 4. The main structure flower rack beam 1 is connected with several 2# steel tie rods 8 corresponding to the horizontal steel frame beam 6. The main structure flower rack beam 1 is connected with a first steel bar 10. Several 2# steel tie rods 8 and the horizontal steel frame beam 6 are connected with galvanized steel pipes 17. A metal roof panel 12 is provided above the 2# steel tie rod 8. The end of the main structure flower rack beam 1 away from the 2# steel tie rod 8 is provided with a 1# longitudinal steel frame beam 2; the 2# steel tie rod 8 is welded with the 1# steel tie rod 7, and the 1# steel tie rod 7, the 2# steel tie rod 8 and the galvanized steel pipe 17 are all welded. The galvanized steel pipe 17 is threadedly connected with a 2# I-shaped secondary purlin 16, the 2# I-shaped secondary purlin 16 is threadedly connected with a 1# I-shaped secondary purlin 15, and the 1# I-shaped secondary purlin 15 is threadedly connected with an aluminum alloy fixing bracket 13. The aluminum alloy fixing bracket 13 A galvanized steel plate 14 is threadedly connected, and the galvanized steel plate 14 is connected to the metal roof panel 12 through an aluminum alloy fixing bracket 13. The galvanized steel plate 14 is connected to a bent steel plate 21. The metal roof panel 12 is fixedly connected with an aluminum alloy clamp 24. A waterproof plug 22 and a water-proof steel plate 23 are provided at one end of the metal roof panel 12; the main structure flower rack beam 1 is welded with a steel tie rod frame 35, and the steel tie rod frame 35 is welded to the first steel frame beam frame 33 and the second steel frame beam frame 34 respectively. The main structure flower rack beam 1 is welded to the 1# longitudinal steel frame beam 2 through the embedded steel plate 9. The main structure flower rack beam 1, the transverse steel frame beam 6 and the outer aluminum single plate 20 are all connected to the ground steel structure support rod 39. The other end of the ground steel structure support rod 39 is provided with a support plate 40, and a reinforcing rib 41 is provided between the ground steel structure support rod 39 and the side wall of the support plate 40.

[0065] In actual use, first, BIM simulates the ground support system and ground test, and the digital and visual BIM software simulates the ground support system, and uses the support frame as the carrier for ground three-dimensional assembly; after completion, the laser positioning device is used for precision control ground test operation, and then the embedded steel plate 9 is positioned, installed and reviewed: the first steel bar 10 is welded to the steel plate into a whole, and the steel bar and the embedded steel plate 9 are fully welded. The weld should be uniform and full, and the welding slag needs to be cleaned after welding is completed; before the construction of the embedded parts, the embedded steel plate 9 needs to be positioned and reviewed. Based on the principle of multi-axis positioning and secondary review, the embedded steel plate 9 is welded to the beam and column stirrups. After the concrete is poured, the positioning of the embedded steel plate 9 needs to be reviewed again; after the main structure construction is completed and reaches the design strength requirement, the embedded steel plate 9 needs to be reviewed before the construction of the cantilever steel structure slope roof. The review of the embedded steel plate 9 includes the review of steel plate positioning, steel plate size, steel plate verticality, and steel plate flatness. Subsequent operations can only be carried out after the review is correct;

[0066] Then, the steel frame beams and decorative panels are assembled three-dimensionally on the ground: the steel frame beams are installed on the ground support system, the horizontal steel frame beams 6 are connected to the galvanized steel pipes 17 by welding, the 2# longitudinal steel frame beams 5 are connected to the steel structure cantilever plate 18 and the horizontal steel frame beams 6 by welding, the steel structure cantilever plate 18 is connected to the horizontal steel frame beams 6 by welding, the upper part of the steel structure cantilever plate 18 is fixed with the galvanized steel plate 14 by angle steel to form the water guide 19, and after inspection and acceptance, the external aluminum veneer 20 is constructed, and the external aluminum veneer 20 is fixed to the horizontal steel frame beams 6 and the steel structure cantilever plate 18 by rivets 29 and self-tapping screws 30, and the joints between the aluminum veneers are filled with foam strips 28 and sealed with sealant 27 on the outside; after the installation of the steel frame beams and the bottom decorative panels is completed, the laser positioning and receiving device is installed;

[0067] Afterwards, the first steel frame beam frame 33 is hoisted and installed: after the steel structure frame is assembled and accepted, it is hoisted and installed using a tower crane and welded to the pre-buried steel plates 9 on the outer sides of the main structure parapet 3 and the main structure columns 4. During the welding process, the workers stand on the existing cantilevered external scaffolding at the bottom to perform the work;

[0068] Afterwards, the second steel frame beam frame 34 is hoisted and installed: the second steel frame beam frame 34 is hoisted and installed using a tower crane, and is welded to the pre-buried steel plate 9 on the outside of the beam. During the welding process, the workers stand on the original cantilevered external scaffolding at the bottom to perform the work, and the 2# longitudinal steel frame beams 5 connected between the steel frame beam frames are bolted; the laser emitting device at the top of the first steel frame beam frame 33 emits a light beam, and the top of the second steel frame beam frame 34 receives the light beam. The accuracy of different block units is checked and controlled by the ground monitoring device, and calibration is performed. The above operation is then repeated until the installation of the ring steel frame beam frame is completed; then the small-scale vacant aluminum veneer at the bottom is installed and the seams are processed: the vacant aluminum veneer at the bottom of each block unit is overlapped and connected first with waterproof rivets 38, and then the seams are treated with special glass sealant 36, and the outside is fully welded with aluminum welding rods 37;

[0069] Afterwards, the steel tie rod frame 35 is assembled: the 1# steel tie rod 7, the 2# steel tie rod 8 and the galvanized steel pipe 17 are all connected by welding, the galvanized steel pipe 17 and the 2# X-shaped secondary purlin 16 are connected by bolts, the 2# X-shaped secondary purlin 16 and the 1# X-shaped secondary purlin 15 are connected by bolts, and the aluminum alloy fixing bracket 13 and the 1# X-shaped secondary purlin 15 and the galvanized steel plate 14 are all connected by threads. After the assembly is completed, it is inspected and accepted;

[0070] Hoisting and installation of steel tie rod frame 35: After the acceptance of steel tie rod frame 35, hoisting and installation of steel tie rod frame 35 are carried out. The steel tie rod frame 35 is welded to the steel frame and the main structure flower rack beam 1. The workers stand on the welded steel frame to work. The workers hang a lifeline and the full-time safety production management personnel stand on the scene to supervise.

[0071] Installation of metal roof panel 12: The metal roof panel 12 and galvanized steel plate 14 are connected by aluminum alloy fixing bracket 13, and the metal roof panel 12 is fixed in sections by aluminum alloy clamp 24;

[0072] Installation of 1# longitudinal steel frame beam 2: 1# longitudinal steel frame beam 2 is connected to the embedded steel plate of the main structure flower frame beam 1 by 90° welding;

[0073] Installation of the outer clad aluminum veneer 20 on the 1# longitudinal steel frame beam 2, the main structure flower rack beam 1 and the metal roof panel 12 at the connection position: the outer clad aluminum veneer 20 and the connecting plate 26 are connected with M20 high-strength bolts 25, the connecting plate 26 and the 1# longitudinal steel frame beam 2 are connected with self-tapping screws 30, the galvanized steel plate 14 and the bent steel plate 21 and the connecting angle steel 31 are connected with self-tapping screws 30, the outer clad aluminum veneer 20 and the connecting angle steel 31 are connected with rivets 29, and the bent steel plate 21 and the main structure flower rack beam 1 are connected with welding; Final inspection and acceptance: Inspection and acceptance are carried out after the installation is completed.

[0074] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A special-shaped steel structure, characterized in that: The special-shaped steel structure includes: Main structure columns (4), main structure parapet walls (3) are provided between the main structure columns (4), a plurality of evenly distributed transverse steel frame beams (6) are provided on one side of the main structure columns (4) and the main structure parapet walls (3), the transverse steel frame beams (6) are connected to an outer aluminum veneer (20), and a steel structure cantilever plate (18) is provided on the inner side of one end of the outer aluminum veneer (20); The main structure flower rack beam (1) is located on one side of the main structure column (4), the main structure flower rack beam (1) is connected to a plurality of 2# steel tie rods (8) corresponding to the transverse steel frame beam (6), the main structure flower rack beam (1) is connected to a first steel bar (10), a plurality of the 2# steel tie rods (8) and the transverse steel frame beam (6) are connected to a galvanized steel pipe (17), a metal roof panel (12) is provided above the 2# steel tie rod (8), and a 1# longitudinal steel frame beam (2) is provided at one end of the main structure flower rack beam (1) away from the 2# steel tie rod (8); The 2# steel tie rod (8) is welded with the 1# steel tie rod (7), and the 1# steel tie rod (7), the 2# steel tie rod (8) and the galvanized steel pipe (17) are all welded, and the galvanized steel pipe (17) is threadedly connected with the 2# "X"-shaped secondary purlin (16), and the 2# "X"-shaped secondary purlin (16) is threadedly connected with the 1# "X"-shaped secondary purlin (15), and the 1# "X"-shaped secondary purlin (15) is threadedly connected with the aluminum alloy fixing bracket (13), and the aluminum alloy fixing bracket (13) is threadedly connected with the galvanized steel plate (14), and the galvanized steel plate (14) is connected to the metal roof panel (12) through the aluminum alloy fixing bracket (13), and the galvanized steel plate (14) is connected with the bent steel plate (21), and the metal roof panel (12) is fixedly connected with the aluminum alloy clamp (24), one end of the metal roof panel (12) is provided with a waterproof plug (22) and a water-proof steel plate (23); the main structure flower rack beam (1) is welded with a steel tie rod frame (35), and the steel tie rod frame (35) is welded to the first steel frame beam frame (33) and the second steel frame beam frame (34) respectively. The main structure flower rack beam (1) is welded to the 1# longitudinal steel frame beam (2) through the embedded steel plate (9), and the main structure flower rack beam (1), the transverse steel frame beam (6) and the outer aluminum single plate (20) are all connected to the ground steel structure support rod (39), and the other end of the ground steel structure support rod (39) is provided with a support plate (40), and a reinforcing rib (41) is provided between the ground steel structure support rod (39) and the side wall of the support plate (40).

2. The special-shaped steel structure according to claim 1, characterized in that: A plurality of embedded steel plates (9) are provided at the upper end of the main structure column (4) and at one end close to the transverse steel frame beam (6). The embedded steel plates (9) are welded with second steel bars (11) and third steel bars (32). The embedded steel plates (9) are fixedly connected to the transverse steel frame beam (6). The transverse steel frame beam (6) is welded to the galvanized steel pipe (17).

3. The special-shaped steel structure according to claim 1, characterized in that: A 2# longitudinal steel frame beam (5) is provided at one end where the transverse steel frame beam (6) and the 2# steel tie rod (8) are connected. The 2# longitudinal steel frame beam (5) and the steel structure cantilever plate (18), the transverse steel frame beam (6), and the steel structure cantilever plate (18) and the transverse steel frame beam (6) are all welded. A water channel (19) is formed by fixing a galvanized steel plate (14) with an angle steel on the upper part of the steel structure cantilever plate (18).

4. The special-shaped steel structure according to claim 1, characterized in that: The outer aluminum veneer (20) is connected to the transverse steel frame beam (6) and the steel structure cantilever plate (18) by rivets (29) and self-tapping screws (30), and the self-tapping screws (30) are connected to connecting angle steels (31). Foam strips (28) are provided between the joints of the outer aluminum veneer (20), and the outer aluminum veneer (20) is connected to a sealant (27).

5. The special-shaped steel structure according to claim 4, characterized in that: The embedded steel plates (9) on the outer sides of the parapet wall (3) beams of the main structure are respectively welded with a first steel frame beam frame (33) and a second steel frame beam frame (34); the first steel frame beam frame (33) and the second steel frame beam frame (34) are connected to the 2# longitudinal steel frame beam (5) by bolts; a laser positioning transmitting device (42) is provided on the top of the first steel frame beam frame (33); the laser positioning transmitting device (42) emits a light beam (43); and a laser positioning receiving device (44) is provided on the top of the second steel frame beam frame (34).

6. The special-shaped steel structure according to claim 1, characterized in that: The vacant aluminum veneer at the bottom of the outer aluminum veneer (20) unit is connected in the form of overlap, and waterproof rivets (38), glass sealant (36) and aluminum welding rod full welding (37) are provided between the gaps of the outer aluminum veneer (20), and the outer aluminum veneer (20) is connected with M20 high-strength bolts (25) and connecting plates (26).

7. The method for high-altitude splicing of decorative panels of a special-shaped steel structure according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: First, BIM simulates the ground support system and ground test: Digital and visual BIM software simulates the ground support system and uses the support frame as a carrier for ground three-dimensional assembly. After completion, a ground test run with precision control of the laser positioning device is carried out; S2: Subsequently, the embedded steel plate (9) is positioned, installed and checked: the first steel bar (10) is welded to the steel plate to form a whole, the steel bar and the embedded steel plate (9) are fully welded, the weld should be uniform and full, and the welding slag needs to be cleaned after the welding is completed; before the embedded parts are constructed, the embedded steel plate (9) needs to be positioned and checked, with multi-axis positioning and secondary checking as the principle, the embedded steel plate (9) is welded to the beam and column stirrups, and the positioning of the embedded steel plate (9) needs to be checked again after the concrete pouring is completed; after the main structure construction is completed and reaches the design strength requirement, the embedded steel plate (9) needs to be checked before the construction of the cantilever steel structure slope roof. The embedded steel plate (9) check includes the steel plate positioning, steel plate size, steel plate verticality, and steel plate flatness check. Subsequent operations can only be carried out after the check is correct; S3: Then, the steel frame beams and decorative panels are assembled three-dimensionally on the ground: the steel frame beams are installed on the ground support system, the transverse steel frame beams (6) are connected to the galvanized steel pipes (17) by welding, the 2# longitudinal steel frame beams (5) are connected to the steel structure cantilever plate (18) and the transverse steel frame beams (6) by welding, the steel structure cantilever plate (18) and the transverse steel frame beams (6) are connected by welding, the upper part of the steel structure cantilever plate (18) is fixed with the galvanized steel plate (14) by angle steel to form a water guide groove (19), and after inspection and acceptance, the external aluminum single plate (20) is constructed, and the external aluminum single plate (20) is fixed to the transverse steel frame beams (6) and the steel structure cantilever plate (18) by rivets (29) and self-tapping screws (30), and the joints between the aluminum single plates are filled with foam strips (28) and sealed with sealant (27) on the outside; after the installation of the steel frame beams and the bottom decorative panels is completed, the laser positioning and receiving device is installed; S4: Afterwards, the first steel frame beam frame (33) is hoisted and installed: after the steel structure frame is assembled and accepted, it is hoisted and installed using a tower crane, and welded to the pre-buried steel plate (9) on the outer side of the parapet (3) beam of the main structure. During the welding process, the operator stands on the original cantilevered external scaffolding at the bottom to perform the work; S5: Thereafter, the second steel frame beam frame (34) is hoisted and installed: the second steel frame beam frame (34) is hoisted and installed using a tower crane, and is welded to the pre-buried steel plate (9) on the outer side of the beam. During the welding process, the operator stands on the original cantilevered external scaffolding at the bottom to perform the operation, and the 2# longitudinal steel frame beams (5) connected between the steel frame beam frames are bolted; the laser emitting device at the top of the first steel frame beam frame (33) emits a light beam, and the top of the second steel frame beam frame (34) receives the light beam, and the accuracy of different block units is checked and controlled by the ground monitoring device, and calibration is performed, and then the above operation is repeated until the ring steel frame beam frame is installed; S6: Then, the small-area vacant aluminum veneer at the bottom is installed and the seams are processed: the vacant aluminum veneer at the bottom of each block unit is connected in the form of overlap, first connected with waterproof rivets (38), then the seams are treated with special glass sealant (36), and the outside is fully welded with aluminum welding rods (37); S7: Afterwards, the steel tie rod frame (35) is assembled: the 1# steel tie rod (7), the 2# steel tie rod (8) and the galvanized steel pipe (17) are all connected by welding, the galvanized steel pipe (17) and the 2# "X" shaped secondary purlin (16) are connected by bolts, the 2# "X" shaped secondary purlin (16) and the 1# "X" shaped secondary purlin (15) are connected by bolts, and the aluminum alloy fixing bracket (13) and the 1# "X" shaped secondary purlin (15) and the galvanized steel plate (14) are all connected by threading. After the assembly is completed, it is inspected and accepted; S8: Lifting and installation of the steel tie rod frame (35): After the steel tie rod frame (35) is inspected and accepted, the steel tie rod frame (35) is hoisted and installed. The steel frame beam and the main structure flower rack beam (1) are all welded together. The operator stands on the welded steel frame beam frame to work, and the operator hangs a lifeline; S9: Installation of metal roof panel (12): The metal roof panel (12) and the galvanized steel plate (14) are connected with an aluminum alloy fixing bracket (13) in the middle, and the metal roof panel (12) is fixed in sections with aluminum alloy clamps (24); S10: 1# longitudinal steel frame beam (2) installation: 1# longitudinal steel frame beam (2) is welded to the embedded steel plate (9) of the main structure frame beam (1); S11: Installation of the outer aluminum veneer (20) of the 1# longitudinal steel frame beam (2), the main structure flower rack beam (1) and the metal roof panel (12) at the connection position: the outer aluminum veneer (20) and the connecting plate (26) are connected with M20 high-strength bolts (25), the connecting plate (26) and the 1# longitudinal steel frame beam (2) are connected with self-tapping screws (30), the galvanized steel plate (14) and the bent steel plate (21) and the connecting angle steel (31) are connected with self-tapping screws (30), the outer aluminum veneer (20) and the connecting angle steel (31) are connected with rivets (29), and the bent steel plate (21) and the main structure flower rack beam (1) are connected with welding; S12: Inspection and acceptance: Inspection and acceptance are carried out after the installation is completed.

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