Aluminum plate overhanging eave of metal roof fully-assembled gable system and mounting method of aluminum plate overhanging eave

Abstract

The invention discloses an aluminum plate cornice of a fully-assembled gable system of a metal roof and a mounting method of the aluminum plate cornice, and belongs to the technical field of building construction. The overhanging eave comprises a steel structure roof, a steel skeleton structure and a decorative aluminum plate, wherein the upper part of the steel skeleton structure is fixedly connected with a roof purline through a steel bracket connecting corner piece, and the lower part of the steel skeleton structure is fixedly connected with a roof H-shaped steel beam through a steel bracket connecting rod piece; and the decorative aluminum plates are mounted on the surface of the steel skeleton structure through the aluminum plate connecting corner fittings to form three step-shaped cornice structures. According to the system, full-assembly design is adopted, all components are prefabricated in a factory and spliced without welding on site, and the construction efficiency and quality are greatly improved. And by arranging a plurality of hard rubber heat insulation pads, cold and hot bridges are effectively blocked, and the heat preservation and energy saving performance of the building is improved. The cornice system is stable in structure, high in assembly degree, remarkable in energy-saving effect and attractive in appearance, and an innovative solution is provided for steel structure building cornice assembly type construction.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to the construction of roof eaves, specifically an aluminum panel eaves system for a fully assembled metal roof gable system and its installation method. Background Technology

[0002] Metal roofing, as a modern building form, has attracted widespread attention for its unique shape and superior performance. However, traditional metal roofing suffers from the following problems when constructing eaves: 1) Existing metal roofs all use traditional, simple eaves structures, which are not only aesthetically unappealing but also lack drainage, waterproofing, and sun protection performance; 2) Reliance on on-site welding operations results in poor quality control, large dimensional deviations in on-site processing, making it difficult to install decorative aluminum panels, and ultimately compromising the flatness and joint quality of the finished appearance; 3) Low construction efficiency and high safety risks, with extensive high-altitude welding operations, long construction periods, and significant weather-related impacts, leading to substantial fire safety risks and the risk of falls from heights; 4) Traditional methods rarely systematically consider the thermal bridging problem at metal connection points, affecting the building's energy efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the problems of insufficient aesthetics, poor drainage, waterproofing, sun shading and sun protection performance, excessive on-site welding, low construction efficiency, large quality fluctuations, high safety risks and thermal bridging in the above-mentioned traditional technologies, and to provide a novel structural design for a fully assembled metal roof gable system with aluminum eaves and its installation method.

[0004] This invention is achieved through the following technical solution: In a first aspect, the present invention provides a fully assembled metal roof gable system with aluminum panel eaves, comprising a steel structure roof, a steel frame structure, and decorative aluminum panels.

[0005] The steel structure roof includes H-shaped steel beams for the roof, wall purlins connected to the outside of the H-shaped steel beams for the walls, exterior wall panels installed on the outside of the wall purlins, roof purlins connected to the top of the H-shaped steel beams for the roof via purlin brackets, a roof metal profiled base plate fixed to the lower surface of the roof purlins, and an outer metal profiled roof sheet installed on the top of the roof purlins via an aluminum alloy bracket with heat insulation pads.

[0006] The steel frame structure is set at the eaves of the steel structure roof gable wall, including multiple spaced prefabricated steel supports and connecting beams connecting adjacent prefabricated steel supports to support the decorative aluminum panels; the upper part of the prefabricated steel supports is fixedly connected to the roof purlins through steel support connecting corner pieces, and the lower part of the prefabricated steel supports is fixedly connected to the roof H-beams through steel support connecting rods.

[0007] Decorative aluminum panels are installed on the surface of the steel frame structure and are fixedly connected to the steel frame structure through aluminum panel connecting corner pieces.

[0008] Furthermore, connecting plates are fixed on the H-shaped steel beams of the roof. The connecting plates are fixedly connected to the inner ends of the steel bracket connecting rods by connecting bolts. The steel bracket connecting rods are installed through the outer wall panels, and the outer ends of the steel bracket connecting rods extend out of the outer wall panels. Roof insulation cotton is laid on the part of the roof metal profiled base plate between the roof purlins. A roof waterproof layer is laid on top of the roof purlins and the roof insulation cotton. Several aluminum alloy brackets are fixed on the top of the roof purlins, and the outer metal profiled sheet of the roof is installed on several aluminum alloy brackets.

[0009] Furthermore, the steel frame structure and decorative aluminum panels form a cantilevered eaves design, creating three stepped cantilever sections. From bottom to top, the first cantilever step and the second cantilever step have a sloping shape, while the second cantilever step and the third cantilever step have a vertical shape.

[0010] The steel frame structure mainly consists of prefabricated steel supports and connecting beams. The prefabricated steel supports are made of square steel tubes in the factory. Through the processes of cutting, bending, and welding the square steel tubes, steel support components A, B, and C are manufactured. Steel support components A, B, and C are then assembled and welded to form the finished steel frame. Specifically, steel support component A includes a first upper horizontal square steel tube section. The outer end of the first upper horizontal square steel tube section is bent vertically downwards to form an upper vertical square steel tube section, and the bottom end of the upper vertical square steel tube section is bent vertically to form an inward-facing section. The extended second upper horizontal square steel pipe section; steel support component B includes a lower vertical square steel pipe section, the bottom end of which is bent vertically inward to form a first lower horizontal square steel pipe section, the inner end of which is bent downward and inward to form a lower oblique square steel pipe section, and the bottom end of which is bent inward to form a second lower horizontal square steel pipe section; the top end of the lower vertical square steel pipe section is welded to the middle of the first upper horizontal square steel pipe section, and the inner end of the second upper horizontal square steel pipe section is welded to the middle of the lower vertical square steel pipe section. The steel support component C is welded to the inner end of the first upper horizontal square steel pipe section, and to the middle of the lower oblique square steel pipe section. The steel support component C is fixed to the steel support connecting brackets via connecting bolts. Reinforcing plates are welded to both sides of the bolted areas on the steel support component C. The connecting brackets are fixed to the roof purlins via connecting bolts, forming the upper connection support. Three-sided... The flanges consist of two three-sided flanges connected and fixed by connecting bolts, forming the lower connection support; adjacent finished steel supports are connected and fixed by multiple connecting beams, adjacent steel support components C are connected and fixed by two connecting beams, adjacent upper vertical square steel pipe sections are connected and fixed by one connecting beam, and adjacent lower vertical square steel pipe sections are connected and fixed by one connecting beam; both ends of the connecting beams are welded and fixed with two upper and lower angle steel brackets, and the two angle steel brackets are connected and fixed to the corresponding square steel pipes by self-tapping screws, ultimately forming a stable steel frame structure.

[0011] The decorative aluminum panel, specifically the eaves, is mainly composed of finished aluminum panel A, finished aluminum panel B, and finished aluminum panel C. Finished aluminum panel A includes a first upper horizontal aluminum panel with a vertically extending downward folded edge at its inner edge, an upper vertical aluminum panel with a vertically extending downward folded edge at its outer edge, and a second upper horizontal aluminum panel with a vertically extending inward folded edge at its bottom edge. Finished aluminum panel B includes a middle vertical aluminum panel with an inwardly extending middle horizontal aluminum panel at its bottom edge. Finished aluminum panel C includes a lower vertical aluminum panel... A first lower horizontal aluminum plate extending inward is vertically installed at the bottom edge of the aluminum plate. A lower inclined aluminum plate extending downward and inward is installed at the inner edge of the first lower horizontal aluminum plate. A second lower horizontal aluminum plate extending inward is installed at the bottom edge of the lower inclined aluminum plate. The longitudinal length of the aluminum plate eaves is determined according to the spacing of the roof purlins. The length of the finished aluminum plate A, finished aluminum plate B and finished aluminum plate C is the roof purlin spacing minus 15mm, leaving a 15mm glue joint. The 15mm glue joint between adjacent finished aluminum plate A, adjacent finished aluminum plate B and adjacent finished aluminum plate C is filled with sealant.

[0012] Furthermore, a first upper horizontal aluminum plate covers the first upper horizontal square steel pipe section and is fixed by aluminum plate connecting corner fittings, with the bottom edge of the vertical folded edge sealed to the outer metal profiled sheet of the roof; a middle vertical aluminum plate covers the upper vertical square steel pipe section and is fixed by aluminum plate connecting corner fittings, and a middle horizontal aluminum plate covers the second upper horizontal square steel pipe section and is fixed by aluminum plate connecting corner fittings; a lower vertical aluminum plate covers the lower middle part of the lower vertical square steel pipe section and is fixed by aluminum plate connecting corner fittings, a first lower horizontal aluminum plate covers the first lower horizontal square steel pipe section and is fixed by aluminum plate connecting corner fittings, and a lower oblique aluminum plate covers the lower oblique square steel pipe section and is fixed by aluminum plate connecting... Corner fittings are used for connection and fixation; the second lower horizontal aluminum plate covers the second lower horizontal square steel pipe section and is connected and fixed by aluminum plate connecting corner fittings; wherein, the first cantilever step is mainly composed of the second lower horizontal square steel pipe section and the second lower horizontal aluminum plate, the second cantilever step is mainly composed of the first lower horizontal square steel pipe section and the first lower horizontal aluminum plate, the third cantilever step is mainly composed of the second upper horizontal square steel pipe section and the middle horizontal aluminum plate, the sloping shape between the first and second cantilever steps is mainly composed of the lower sloping square steel pipe section and the lower sloping aluminum plate, and the vertical shape between the second and third cantilever steps is mainly composed of the lower vertical square steel pipe section and the lower vertical aluminum plate.

[0013] Furthermore, the inner edge of the second upper horizontal aluminum plate is connected to the top edge of the middle vertical aluminum plate, with a rubber rod at the joint and sealed with silicone weather-resistant sealant. The inner edge of the second upper horizontal aluminum plate and the top edge of the middle vertical aluminum plate are respectively connected and fixed to the connecting beams connecting adjacent upper vertical square steel pipe sections via aluminum plate connecting corner pieces. The inner edge of the middle horizontal aluminum plate is connected to the top edge of the lower vertical aluminum plate, with a rubber rod at the joint and sealed with silicone weather-resistant sealant. The inner edge of the middle horizontal aluminum plate and the top edge of the lower vertical aluminum plate are respectively connected and fixed to the connecting beams connecting adjacent lower vertical square steel pipe sections via aluminum plate connecting corner pieces. The inner edge of the second lower horizontal aluminum plate is connected to the outer wall panel, with a rubber rod at the joint and sealed with silicone weather-resistant sealant. The inner edge of the second lower horizontal aluminum plate is connected and fixed to the steel bracket connecting rods via continuous aluminum plate connecting corner pieces.

[0014] Furthermore, the aluminum alloy bracket base supporting the outer metal profiled sheet of the roof is equipped with a heat insulation pad; a hard rubber heat insulation pad is installed between the steel bracket component C and the steel bracket connecting corner piece; a hard rubber heat insulation pad is installed between the three-sided flange at the inner end of the second lower horizontal square steel pipe section and the three-sided flange at the outer end of the steel bracket connecting rod; a hard rubber heat insulation pad is installed at the joint surface of the aluminum plate connecting corner piece and the continuous aluminum plate connecting corner piece with the corresponding square steel pipe section; by simultaneously installing multiple heat insulation pads, thermal bridges are effectively cut off, and the building's thermal insulation and energy-saving performance is improved.

[0015] In a second aspect, the present invention provides an installation method for the aluminum eaves of the above-mentioned fully assembled gable roof system for metal roofs. The method involves on-site assembly and installation after the main structure of the steel building has been installed and the wall purlins, roof purlins, and roof metal profiled base plate installation processes have passed acceptance. The installation steps also include: steel bracket connecting rods → exterior wall panels → finished steel brackets → connecting beams → roof insulation cotton → roof waterproof layer → aluminum alloy brackets → outer metal profiled roof plate → finished aluminum plate C → finished aluminum plate B → finished aluminum plate A → installing rubber rods at joints → applying silicone weather-resistant sealant → cleaning → acceptance.

[0016] Furthermore, the above installation steps specifically include: first, installing the steel bracket connecting rods; then, precisely drilling and installing the BIM layout panels for the exterior wall panels; next, installing the prefabricated steel brackets; and finally, installing the connecting beams to form a complete steel frame structure. After the prefabricated steel bracket structure is installed, the roof insulation cotton and roof waterproofing layer are installed. Then, the aluminum alloy brackets and the outer metal profiled sheet of the roof are installed. After that, the decorative aluminum panels are installed. Before installation, aluminum rivets are used to fix the aluminum panel connecting corner pieces to each prefabricated aluminum panel, and continuous aluminum panel connecting corner pieces are fixed to the prefabricated aluminum panel C at the joints connecting with the exterior wall panels. Then, the finished aluminum panels are installed. During installation, finished aluminum panel C is installed first, followed by finished aluminum panel B, and finally finished aluminum panel A to complete the upper capping. The capping aluminum panel is finished aluminum panel A, which spans the edge ribs of the outer metal profiled sheet of the roof to ensure smooth drainage. At the joints of adjacent finished aluminum panels, the aluminum panel connecting corner pieces are firmly fixed to the corresponding finished steel brackets using self-tapping screws. Rubber rods are then installed, followed by the application of silicone weather-resistant sealant to ensure the sealing and durability of the joints. This completes the fully prefabricated installation of the aluminum panel eaves of the fully assembled gable wall system for the metal roof.

[0017] The aluminum panel eaves of the fully prefabricated metal roofing gable system described in this invention, through special structural and aesthetic design optimization, adopt a cantilevered eaves structure, forming three stepped cantilever sections. Specifically, the first and second cantilevered steps are designed with a sloping shape, while the second and third cantilevered steps are vertical. This structural design is not only aesthetically pleasing but also conforms to structural mechanics principles, enhancing the stability and durability of the eaves, while significantly improving its drainage, waterproofing, and sunshade performance.

[0018] The aluminum panel eaves of the fully assembled metal roof gable system described in this invention are manufactured in factories and assembled on-site, achieving the goals of convenient construction, strict quality control, and improved construction efficiency.

[0019] In summary, the aluminum panel eaves system for a fully prefabricated metal roofing system provided by this invention features a scientifically rigorous design. The system employs a fully prefabricated design, with all components prefabricated in the factory and assembled on-site without welding, significantly improving construction efficiency and quality. By incorporating multiple rigid rubber thermal insulation pads, thermal bridges are effectively blocked, enhancing the building's thermal insulation and energy-saving performance. This invention's eaves system boasts structural stability, a high degree of prefabrication, significant energy-saving effects, and an aesthetically pleasing appearance, providing an innovative solution for prefabricated construction of eaves in steel structure buildings. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the rubber rod in this invention.

[0023] Figure 3 This is a schematic diagram of the steel frame structure in this invention.

[0024] Figure 4 This is a schematic diagram of the upper steel frame in a steel frame structure.

[0025] Figure 5 This is a schematic diagram of the lower steel frame in a steel frame structure.

[0026] Figure 6 This is a schematic diagram of the steel support component C in the steel frame structure.

[0027] Figure 7 This is a schematic diagram of the structure of the decorative aluminum plate in this invention.

[0028] Figure 8 This is a structural diagram of finished aluminum plate component A in a decorative aluminum sheet.

[0029] Figure 9 This is a structural diagram of finished aluminum plate component B in a decorative aluminum sheet.

[0030] Figure 10 This is a structural diagram of finished aluminum plate component C in decorative aluminum sheet.

[0031] Figure 11 This is a schematic diagram showing the connection between adjacent finished steel supports in this invention via a connecting beam.

[0032] In the diagram: 100-steel structure roof, 200-steel frame structure, 300-decorative aluminum panel; 1-roof H-beam, 2-wall purlin, 3-exterior wall panel, 4-roof metal profiled bottom plate, 5-roof purlin, 6-outer metal profiled sheet of the roof, 7-steel bracket connecting corner piece, 8-steel bracket connecting rod, 9-aluminum plate connecting corner piece, 10-connecting plate, 11-roof insulation cotton, 12-roof waterproof layer, 13-aluminum alloy bracket, 14-steel bracket component A, 15-steel bracket component B, 16-steel bracket component C, 17-first upper horizontal square steel pipe section, 18-upper vertical square steel pipe section, 19-second upper horizontal square steel pipe section, 20-lower vertical square steel pipe section 21-First lower horizontal square steel pipe section, 22-Lower oblique square steel pipe section, 23-Second lower horizontal square steel pipe section, 24-Three-sided flange, 25-Connecting beam, 26-Angle steel fitting, 27-Finished aluminum plate A, 28-Finished aluminum plate B, 29-Finished aluminum plate C, 30-First upper horizontal aluminum plate, 31-Vertical folded edge, 32-Upper vertical aluminum plate, 33-Second upper horizontal aluminum plate, 34-Middle vertical aluminum plate, 35-Middle horizontal aluminum plate, 36-Lower vertical aluminum plate, 37-First lower horizontal aluminum plate, 38-Lower oblique aluminum plate, 39-Second lower horizontal aluminum plate, 40-Reinforcing plate pipe, 41-Rubber rod, 42-Continuous aluminum plate connecting corner fitting. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0034] In the description of this invention, it should be understood that the terms "inner", "outer", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Example 1

[0035] like Figures 1 to 11 As shown, this embodiment provides a fully assembled metal roof gable system with aluminum panel eaves, including a steel structure roof 100, a steel frame structure 200, and decorative aluminum panels 300.

[0036] The steel structure roof 100 includes a roof H-beam 1, wall purlins 2 connected to the outside of the roof H-beam 1, an outer wall panel 3 installed on the outside of the wall purlins 2, a roof purlin 5 connected to the top of the roof H-beam 1 via purlin brackets, a roof metal profiled bottom plate 4 fixed to the lower surface of the roof purlins 5, and an outer metal profiled sheet 6 installed on the top of the roof purlins 5 via an aluminum alloy bracket 13 with heat insulation pads.

[0037] The steel frame structure 200 is set at the eaves of the gable wall of the steel structure roof 100, including multiple prefabricated steel supports spaced apart and connecting beams 25 connecting adjacent prefabricated steel supports, for supporting the decorative aluminum panels 300; the upper part of the prefabricated steel supports is fixedly connected to the roof purlins 5 through steel support connecting corner pieces 7, and the lower part of the prefabricated steel supports is fixedly connected to the roof H-beams 1 through steel support connecting rods 8.

[0038] Decorative aluminum panels 300 are installed on the surface of steel frame structure 200 and are fixedly connected to steel frame structure 200 through aluminum panel connecting corner pieces 9.

[0039] In specific implementation, a connecting plate 10 is fixed on the H-shaped steel beam 1 of the roof. The connecting plate 10 is fixedly connected to the inner end of the steel bracket connecting rod 8 by connecting bolts. The steel bracket connecting rod 8 is set through the outer wall panel 3, and the outer end of the steel bracket connecting rod 8 extends out of the outer wall panel 3. The part of the roof metal profiled bottom plate 4 located between the roof purlins 5 is covered with roof insulation cotton 11. A roof waterproof layer 12 is laid on top of the roof purlins 5 and the roof insulation cotton 11. Several aluminum alloy brackets 13 are fixed on the top of the roof purlins 5. The outer metal profiled plate 6 of the roof is installed on several aluminum alloy brackets 13.

[0040] In practice, the steel frame structure 200 and the decorative aluminum panel 300 form a cantilevered eaves design, creating three stepped cantilevered sections. From bottom to top, the first cantilevered step and the second cantilevered step have a sloping shape, while the second cantilevered step and the third cantilevered step have a vertical shape.

[0041] The steel frame structure 200 mainly consists of prefabricated steel supports and connecting beams 25. The prefabricated steel supports are made of 50*50*3 square steel tubes in the factory. Through the processes of cutting, bending, and welding the square steel tubes, steel support components A14, B15, and C16 are manufactured. These components are then assembled and welded to form the finished steel frame. Specifically, steel support component A14 includes a first upper horizontal square steel tube section 17. The outer end of the first upper horizontal square steel tube section 17 is bent vertically downwards to form an upper vertical square steel tube section 18. The bottom end of the upper vertical square steel tube section 18 is bent vertically to form an inwardly extending... The second upper horizontal square steel pipe section 19; the steel support component B15 includes a lower vertical square steel pipe section 20, the bottom end of the lower vertical square steel pipe section 20 is bent vertically inward to form a first lower horizontal square steel pipe section 21, the inner end of the first lower horizontal square steel pipe 21 is bent downward and inward to form a lower oblique square steel pipe section 22, the bottom end of the lower oblique square steel pipe section 22 is bent inward to form a second lower horizontal square steel pipe section 23; the top end of the lower vertical square steel pipe section 20 is welded to the middle of the first upper horizontal square steel pipe section 17, the inner end of the second upper horizontal square steel pipe section 19 is welded to the middle of the lower vertical square steel pipe section 20, and the top of the steel support component C16... The end of the steel support component C16 is welded to the inner end of the first upper horizontal square steel pipe section 17, and the bottom end of the steel support component C16 is welded to the middle of the lower oblique square steel pipe section 22. The steel support component C16 is connected and fixed to the steel support connecting angle piece 7 by connecting bolts. Reinforcing plate pipes 40 are welded to both sides of the part of the steel support component C16 where the connecting bolts are inserted. The steel support connecting angle piece 7 is connected and fixed to the roof purlin 5 by connecting bolts to form the upper connection support. The inner end of the second lower horizontal square steel pipe section 23 and the outer end of the steel support connecting rod 8 are both welded and fixed with three-sided flanges 24. The two three-sided flanges 24 are connected and fixed by connecting bolts to form the lower connection support. Adjacent finished steel supports are connected and fixed by multiple connecting beams 25. Adjacent steel support components C16 are connected and fixed by two connecting beams 25. Adjacent upper vertical square steel pipe sections 18 are connected and fixed by one connecting beam 25. Adjacent lower vertical square steel pipe sections 20 are connected and fixed by one connecting beam 25. Two angle steel brackets 26 are welded and fixed to both ends of the connecting beam 25. The two angle steel brackets 26 are connected and fixed to the corresponding square steel pipes by self-tapping screws, finally forming a stable steel frame structure 200. The connecting beam 25 is made of 50*50*3 square steel pipe, and the angle steel brackets 26 are made of 50*50*4 angle steel.

[0042] The decorative aluminum panel 300, with its horizontal eaves, is mainly composed of finished aluminum panel parts A27, B28, and C29. Finished aluminum panel part A27 includes a first upper horizontal aluminum panel 30, with a vertically extending downward-facing vertical flange 31 at the inner edge of the first upper horizontal aluminum panel 30, a vertically extending upper vertical aluminum panel 32 at the outer edge of the first upper horizontal aluminum panel 30, and a vertically extending inward-facing second upper horizontal aluminum panel 33 at the bottom edge of the upper vertical aluminum panel 32. Finished aluminum panel part B28 includes a middle vertical aluminum panel 34, with a vertically extending inward-facing middle horizontal aluminum panel 35 at the bottom edge of the middle vertical aluminum panel 34. Finished aluminum panel part C29 includes a lower vertical aluminum panel 36. A first lower horizontal aluminum plate 37 extending inward is vertically installed at the bottom edge of the lower vertical aluminum plate 36. A lower inclined aluminum plate 38 extending downward and inward is installed at the inner edge of the first lower horizontal aluminum plate 37. A second lower horizontal aluminum plate 39 extending inward is installed at the bottom edge of the lower inclined aluminum plate 38. The longitudinal length of the aluminum plate eaves is determined according to the spacing of the roof purlins 5. The length is the roof purlin spacing minus 15mm, leaving a 15mm wide adhesive joint. The 15mm wide adhesive joint between adjacent finished aluminum plates A27, adjacent finished aluminum plates B28, and adjacent finished aluminum plates C29 is filled with sealant.

[0043] In specific implementation, the first upper horizontal aluminum plate 30 covers the first upper horizontal square steel pipe section 17 and is connected and fixed by aluminum plate connecting corner pieces 9. The bottom edge of the vertical folded edge 31 is sealed and connected to the outer metal profiled sheet 6 of the roof. The middle vertical aluminum plate 34 covers the upper vertical square steel pipe section 18 and is connected and fixed by aluminum plate connecting corner pieces 9. The middle horizontal aluminum plate 35 covers the second upper horizontal square steel pipe section 19 and is connected and fixed by aluminum plate connecting corner pieces 9. The lower vertical aluminum plate 36 covers the lower middle part of the lower vertical square steel pipe section 20 and is connected and fixed by aluminum plate connecting corner pieces 9. The first lower horizontal aluminum plate 37 covers the first lower horizontal square steel pipe section 21 and is connected and fixed by aluminum plate connecting corner pieces 9. The lower oblique aluminum plate 38 covers the lower oblique square steel pipe section 22 and is connected and fixed by aluminum plate connecting corner pieces 9. The plate connecting corner piece 9 is used for connection and fixation; the second lower horizontal aluminum plate 39 covers the second lower horizontal square steel pipe section 23 and is connected and fixed through the aluminum plate connecting corner piece 9; wherein, the first cantilever step is mainly composed of the second lower horizontal square steel pipe section 23 and the second lower horizontal aluminum plate 39, the second cantilever step is mainly composed of the first lower horizontal square steel pipe section 21 and the first lower horizontal aluminum plate 37, the third cantilever step is mainly composed of the second upper horizontal square steel pipe section 19 and the middle horizontal aluminum plate 35, the sloping shape between the first and second cantilever steps is mainly composed of the lower sloping square steel pipe section 22 and the lower sloping aluminum plate 38, and the vertical shape between the second and third cantilever steps is mainly composed of the lower vertical square steel pipe section 20 and the lower vertical aluminum plate 36.

[0044] In specific implementation, the inner edge of the second upper horizontal aluminum plate 33 is mated with the top edge of the middle vertical aluminum plate 34. A rubber rod 41 is installed at the mating point, which is sealed with silicone weather-resistant sealant. The inner edge of the second upper horizontal aluminum plate 33 and the top edge of the middle vertical aluminum plate 34 are respectively connected and fixed to the connecting beam 25 connecting adjacent upper vertical square steel pipe sections 18 via aluminum plate connecting corner pieces 9. The inner edge of the middle horizontal aluminum plate 35 is mated with the top edge of the lower vertical aluminum plate 36, and a rubber rod 41 is installed at the mating point. The inner edge of the middle horizontal aluminum plate 35 and the top edge of the lower vertical aluminum plate 36 are connected and fixed to the connecting beam 25 between the adjacent lower vertical square steel pipe sections 20 by aluminum plate connecting corner pieces 9; the inner edge of the second lower horizontal aluminum plate 39 is mated with the outer wall panel 3, and a rubber rod 41 is provided at the mating point and sealed with silicone weather-resistant sealant; the inner edge of the second lower horizontal aluminum plate 39 is connected and fixed to the steel bracket connecting rod 8 by a continuous aluminum plate connecting corner piece 42.

[0045] In specific implementation, the aluminum alloy bracket 13 supporting the outer metal profiled sheet 6 of the roof has a heat insulation pad on its base; a hard rubber heat insulation pad is installed between the steel bracket component C16 and the steel bracket connecting corner piece 7; a hard rubber heat insulation pad is installed between the three-sided flange 24 at the inner end of the second lower horizontal square steel pipe section 23 and the three-sided flange 24 at the outer end of the steel bracket connecting rod 8; a hard rubber heat insulation pad is installed at the joint surface between the aluminum plate connecting corner piece 9 and the corresponding square steel pipe section, and a hard rubber heat insulation pad is installed at the joint surface between the continuous aluminum plate connecting corner piece 42 and the steel bracket connecting rod 8; by simultaneously installing multiple heat insulation pads, thermal bridges are effectively cut off, and the building's thermal insulation and energy-saving performance is improved. Example 2

[0046] like Figures 1 to 11 As shown, this embodiment provides an installation method for the aluminum eaves of the fully assembled gable wall system for metal roofs as described in Embodiment 1. The assembly and installation are carried out after the main structure of the steel building has been installed and the installation processes of the wall purlins 2, roof purlins 5, and roof metal profiled base plate 4 have passed acceptance. The installation steps also include: steel bracket connecting rods 8 → exterior wall panel 3 → finished steel bracket → connecting beam 25 → roof insulation cotton 11 → roof waterproof layer 12 → aluminum alloy bracket 13 → outer metal profiled roof plate 6 → finished aluminum plate C29 → finished aluminum plate B28 → finished aluminum plate A27 → installing rubber rods 41 at the joints → applying silicone weather-resistant sealant → cleaning → acceptance.

[0047] In specific implementation, the installation steps are as follows: First, install the steel bracket connecting rods 8, then precisely drill holes and install the outer wall panel 3 using BIM layout, followed by the installation of the prefabricated steel bracket, and finally the installation of the connecting beam 25 to form a complete steel frame structure 200; after the prefabricated steel bracket structure is installed, install the roof insulation cotton 11 and the roof waterproof layer 12, then complete the installation of the aluminum alloy bracket 13 and the outer metal profiled sheet 6 of the roof, and then install the decorative aluminum panel 300. Before installation, use aluminum rivets to fix the aluminum panel connecting corner pieces 9 on each prefabricated aluminum panel, and fix the continuous aluminum panel connecting rods C29 at the joints connecting with the outer wall panel 3. Corner fitting 42 is installed first, followed by the installation of each finished aluminum panel. During installation, finished aluminum panel C29 is installed first, then finished aluminum panel B28, and finally finished aluminum panel A27 to complete the upper capping. The capping aluminum panel is finished aluminum panel A27, which spans the edge ribs of the outer metal profiled sheet 6 of the roof to ensure smooth drainage. At the joints of adjacent finished aluminum panels, self-tapping screws are used to firmly fix the aluminum panel connecting corner fitting 9 to the corresponding finished steel bracket. Then, rubber rod 41 is installed, followed by the application of silicone weather-resistant sealant to ensure the sealing and durability of the joints. This completes the fully assembled installation of the aluminum panel eaves of the fully assembled gable wall system for the metal roof.

[0048] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A fully prefabricated metal roofing gable system with aluminum panel eaves, characterized in that: Includes a steel structure roof (100), a steel frame structure (200), and decorative aluminum panels (300); The steel structure roof (100) includes a roof H-beam (1), wall purlins (2) connected to the outside of the roof H-beam (1), an outer wall panel (3) installed on the outside of the wall purlins (2), a roof purlin (5) connected to the top of the roof H-beam (1) by purlin brackets, a roof metal profiled bottom plate (4) fixed to the lower surface of the roof purlins (5), and an outer metal profiled sheet (6) installed on the top of the roof purlins (5) by an aluminum alloy bracket (13) with heat insulation pads. The steel frame structure (200) is set at the eaves of the gable wall of the steel structure roof (100), including multiple prefabricated steel supports spaced apart and connecting beams (25) connecting adjacent prefabricated steel supports, for supporting decorative aluminum panels (300); the upper part of the prefabricated steel supports is fixedly connected to the roof purlins (5) through steel support connecting corner pieces (7), and the lower part of the prefabricated steel supports is fixedly connected to the roof H-beams (1) through steel support connecting rods (8); Decorative aluminum panels (300) are installed on the surface of the steel frame structure (200) and are fixedly connected to the steel frame structure (200) through aluminum panel connecting corner pieces (9).

2. The aluminum panel eaves of a fully assembled metal roof gable system according to claim 1, characterized in that: A connecting plate (10) is fixed on the H-shaped steel beam (1) of the roof. The connecting plate (10) is fixedly connected to the inner end of the steel bracket connecting rod (8) by connecting bolts. The steel bracket connecting rod (8) is set through the outer wall panel (3), and the outer end of the steel bracket connecting rod (8) extends out of the outer wall panel (3). The part of the roof metal profiled bottom plate (4) located between the roof purlins (5) is covered with roof insulation cotton (11). A roof waterproof layer (12) is laid above the roof purlins (5) and the roof insulation cotton (11). Several aluminum alloy brackets (13) are fixed on the top of the roof purlins (5). The outer metal profiled plate (6) of the roof is installed on several aluminum alloy brackets (13).

3. The aluminum panel eaves of a fully assembled metal roof gable system according to claim 2, characterized in that: The steel frame structure (200) and the decorative aluminum panel (300) form a cantilevered eaves design, creating three stepped cantilevered sections. From bottom to top, the first cantilevered step and the second cantilevered step are sloped, while the second cantilevered step and the third cantilevered step are vertical. The steel frame structure (200) is mainly composed of finished steel supports and connecting beams (25). The finished steel supports are made of square steel pipes in the factory. The square steel pipes are cut, bent and welded to form steel support components A (14), steel support components B (15) and steel support components C (16). The steel support components A (14), steel support components B (15) and steel support components C (16) are assembled and welded to form the finished steel support. Among them, the steel support component A (14) includes a first upper horizontal square steel pipe section (17). The outer end of the first upper horizontal square steel pipe section (17) is bent vertically downward to form an upper vertical square steel pipe section (18). The bottom end of the upper vertical square steel pipe section (18) is bent vertically to form a vertical square steel pipe section (18). The second upper horizontal square steel pipe section (19) extends inward; the steel support component B (15) includes a lower vertical square steel pipe section (20), the bottom end of the lower vertical square steel pipe section (20) is bent vertically inward to form a first lower horizontal square steel pipe section (21), the inner end of the first lower horizontal square steel pipe (21) is bent downward and inward to form a lower oblique square steel pipe section (22), the bottom end of the lower oblique square steel pipe section (22) is bent inward to form a second lower horizontal square steel pipe section (23); the top end of the lower vertical square steel pipe section (20) is welded to the middle of the first upper horizontal square steel pipe section (17), and the inner end of the second upper horizontal square steel pipe section (19) is connected to the lower vertical square steel pipe section (20). The middle part of the steel support component C (16) is welded together, the top end of the steel support component C (16) is welded together with the inner end of the first upper horizontal square steel pipe section (17), and the bottom end of the steel support component C (16) is welded together with the middle part of the lower oblique square steel pipe section (22). The steel support component C (16) is connected and fixed to the steel support connecting corner piece (7) by connecting bolts. The steel support component C (16) has reinforcing plate pipes (40) welded on both sides of the part where the connecting bolts are inserted. The steel support connecting corner piece (7) is connected and fixed to the roof purlin (5) by connecting bolts to form the upper connection support. The inner end of the second lower horizontal square steel pipe section (23) and the outer end of the steel support connecting rod (8) are both welded and fixed with three-sided flanges. (24) Two three-sided flanges (24) are connected and fixed by connecting bolts to form the lower connection support; adjacent finished steel supports are connected and fixed by multiple connecting beams (25), adjacent steel support components C (16) are connected and fixed by two upper and lower connecting beams (25), adjacent upper vertical square steel pipe sections (18) are connected and fixed by one connecting beam (25), and adjacent lower vertical square steel pipe sections (20) are connected and fixed by one connecting beam (25); two upper and lower angle steel corner pieces (26) are welded and fixed at both ends of the connecting beam (25), and the two angle steel corner pieces (26) are connected and fixed to the corresponding square steel pipes by self-tapping screws, finally forming a stable steel frame structure (200). The decorative aluminum plate (300) and the horizontal eaves of the aluminum plate are mainly composed of finished aluminum plate A (27), finished aluminum plate B (28) and finished aluminum plate C (29). Finished aluminum plate A (27) includes a first upper horizontal aluminum plate (30), a vertically extending vertical folded edge (31) is vertically set at the inner end plate edge of the first upper horizontal aluminum plate (30), an upper vertical aluminum plate (32) is vertically set at the outer end plate edge of the first upper horizontal aluminum plate (30), and a second upper horizontal aluminum plate (33) is vertically set at the bottom end plate edge of the upper vertical aluminum plate (32). Finished aluminum plate B (28) includes a middle vertical aluminum plate (34), a middle horizontal aluminum plate (35) is vertically set at the bottom end plate edge of the middle vertical aluminum plate (34). Finished aluminum plate C (29) includes a lower vertical aluminum plate. (36) A first lower horizontal aluminum plate (37) extending inward is vertically set at the bottom edge of the lower vertical aluminum plate (36). A lower inclined aluminum plate (38) extending downward and inward is set at the inner edge of the first lower horizontal aluminum plate (37). A second lower horizontal aluminum plate (39) extending inward is set at the bottom edge of the lower inclined aluminum plate (38). The longitudinal length of the aluminum plate eaves is determined according to the spacing of the roof purlins (5). The length of the finished aluminum plate A (27), finished aluminum plate B (28) and finished aluminum plate C (29) is determined. The length is the spacing of the roof purlins (5) minus 15mm, leaving a 15mm glue joint. The 15mm glue joint between adjacent finished aluminum plate A (27), adjacent finished aluminum plate B (28) and adjacent finished aluminum plate C (29) is filled with sealant.

4. The aluminum panel eaves of a fully assembled metal roof gable system according to claim 3, characterized in that: The first upper horizontal aluminum plate (30) covers the first upper horizontal square steel pipe section (17) and is fixed by aluminum plate connecting corner pieces (9). The bottom edge of the vertical folded edge (31) is sealed to the outer metal profiled sheet (6) of the roof. The middle vertical aluminum plate (34) covers the upper vertical square steel pipe section (18) and is fixed by aluminum plate connecting corner pieces (9). The middle horizontal aluminum plate (35) covers the second upper horizontal square steel pipe section (19) and is fixed by aluminum plate connecting corner pieces (9). The lower vertical aluminum plate (36) covers the lower middle part of the lower vertical square steel pipe section (20) and is fixed by aluminum plate connecting corner pieces (9). The first lower horizontal aluminum plate (37) covers the first lower horizontal square steel pipe section (21) and is fixed by aluminum plate connecting corner pieces (9). The lower oblique aluminum plate (38) covers the lower oblique square steel pipe section (22) and is fixed by aluminum plate connecting corner pieces (9). The aluminum plate connecting corner piece (9) is used for connection and fixation; the second lower horizontal aluminum plate (39) covers the second lower horizontal square steel pipe section (23) and is connected and fixed by the aluminum plate connecting corner piece (9); the first cantilever step is mainly composed of the second lower horizontal square steel pipe section (23) and the second lower horizontal aluminum plate (39), the second cantilever step is mainly composed of the first lower horizontal square steel pipe section (21) and the first lower horizontal aluminum plate (37), the third cantilever step is mainly composed of the second upper horizontal square steel pipe section (19) and the middle horizontal aluminum plate (35), the sloping shape between the first cantilever step and the second cantilever step is mainly composed of the lower sloping square steel pipe section (22) and the lower sloping aluminum plate (38), and the vertical shape between the second cantilever step and the third cantilever step is mainly composed of the lower vertical square steel pipe section (20) and the lower vertical aluminum plate (36).

5. The aluminum panel eaves of a fully assembled metal roof gable system according to claim 4, characterized in that: The inner edge of the second upper horizontal aluminum plate (33) is connected to the top edge of the middle vertical aluminum plate (34). A rubber rod (41) is provided at the joint and sealed with silicone weather-resistant sealant. The inner edge of the second upper horizontal aluminum plate (33) and the top edge of the middle vertical aluminum plate (34) are respectively connected and fixed to the connecting beam (25) connecting the adjacent upper vertical square steel pipe section (18) through aluminum plate connecting corner pieces (9). The inner edge of the middle horizontal aluminum plate (35) is connected to the top edge of the lower vertical aluminum plate (36). A rubber rod (41) is provided at the joint. Furthermore, the inner edge of the middle horizontal aluminum plate (35) and the top edge of the lower vertical aluminum plate (36) are connected and fixed to the connecting beam (25) between the adjacent lower vertical square steel pipe sections (20) by aluminum plate connecting corner pieces (9); the inner edge of the second lower horizontal aluminum plate (39) is connected to the outer wall panel (3), a rubber rod (41) is provided at the joint and sealed with silicone weather-resistant sealant, and the inner edge of the second lower horizontal aluminum plate (39) is connected and fixed to the steel bracket connecting rod (8) by a continuous aluminum plate connecting corner piece (42).

6. The aluminum panel eaves of a fully assembled metal roof gable system according to claim 5, characterized in that: The aluminum alloy bracket (13) supporting the outer metal profiled sheet (6) of the roof has a heat insulation pad on its base; a hard rubber heat insulation pad is provided between the steel bracket component C (16) and the steel bracket connecting corner piece (7); a hard rubber heat insulation pad is provided between the three-sided flange (24) at the inner end of the second lower horizontal square steel pipe section (23) and the three-sided flange (24) at the outer end of the steel bracket connecting rod (8); a hard rubber heat insulation pad is provided at the joint surface between the aluminum plate connecting corner piece (9) and the corresponding square steel pipe section; by setting multiple heat insulation pads at the same time, the thermal bridge is effectively cut off, and the thermal insulation and energy-saving performance of the building is improved.

7. The installation method of aluminum panel eaves for a fully assembled metal roof gable system as described in claim 6, characterized in that, On-site assembly and installation shall be carried out after the main structure of the steel structure building is installed and the wall purlins (2), roof purlins (5) and roof metal profiled base plate (4) have been installed and accepted. The installation steps also include: steel bracket connecting rods (8) → exterior wall panel (3) → finished steel bracket → connecting beam (25) → roof insulation cotton (11) → roof waterproof layer (12) → aluminum alloy bracket (13) → roof outer metal profiled plate (6) → finished aluminum plate C (29) → finished aluminum plate B (28) → finished aluminum plate A (27) → install rubber rod at the joint (41) → inject silicone weather-resistant sealant for sealing → cleaning → acceptance.

8. The installation method of aluminum panel eaves for a fully assembled metal roof gable system according to claim 7, characterized in that, First, install the steel bracket connecting rods (8), then precisely open and install the outer wall panel (3) using BIM layout, then install the finished steel bracket, and finally install the connecting beam (25) to form a complete steel frame structure (200); after the finished steel bracket structure is installed, install the roof insulation cotton (11) and the roof waterproof layer (12), then complete the installation of the aluminum alloy bracket (13) and the outer metal profiled sheet (6) of the roof, and then install the decorative aluminum panel (300). Before installation, use aluminum rivets to fix the aluminum plate connecting corner pieces (9) on each finished aluminum plate and fix the continuous aluminum plate connecting corner pieces on the finished aluminum plate C (29) at the joint connected to the outer wall panel (3). (42) Then install each finished aluminum plate. During installation, first install finished aluminum plate C (29), then install finished aluminum plate B (28), and finally install finished aluminum plate A (27) to complete the upper capping. The capping aluminum plate is finished aluminum plate A (27), which spans the edge rib of the outer metal profiled sheet (6) of the roof and allows for smooth drainage. At the joints of adjacent finished aluminum plates, the aluminum plate connecting corner piece (9) is fixed firmly to the corresponding finished steel bracket with self-tapping screws. Then, rubber rods (41) are installed, and then silicone weather-resistant sealant is injected to seal the joints to ensure the sealing and durability of the joints. In this way, the fully assembled installation of the aluminum plate eaves of the fully assembled gable wall system of the metal roof is completed.

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