A kind of overhanging eaves aluminum plate curtain wall structure and construction method thereof

Abstract

The present invention discloses an overhanging aluminum plate curtain wall structure and a construction method thereof. By arranging inclined beams, under-beam hangers, beam end hangers, first galvanized angle steels, and second galvanized angle steels, a stepped grid frame surrounding the roof beams and the outside of the overhanging beams is formed to provide support and installation points for the aluminum plate components. The aluminum plate components are respectively installed on the first galvanized angle steels and the second galvanized angle steels to form a stepped exterior finish. The present invention integrates the support skeleton of the facade curtain wall with the stepped frame of the overhanging aluminum plate curtain wall to form a stable and strong support system. By arranging inclined beams, the stepped frame is made to conform to the steel structure overhanging eaves and meet the grid size of the aluminum plate components. The inclined beams, under-beam hangers, and beam end hangers are assembled on the ground, reducing the amount of high-altitude welding, lowering safety risks, and making it easier to control the welding position and quality. The joints between the aluminum plate components have a reasonable structure, which facilitates the control of the gap position and width, reducing the difficulty of construction.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain wall installation, in particular to an overhanging aluminum plate curtain wall structure and a construction method thereof. Background Art

[0002] Overhangs are a common roof structure that provides systematic drainage, protects walls, and enhances aesthetics. Aluminum sheets are one of the most common decorative materials due to their light weight, high strength, and diverse shapes and colors. There are two different installation methods for existing aluminum sheet overhangs. One is that the original roof structure does not have an overhang, but instead uses an aluminum sheet support frame to create an overhang shape. The support frame is fixed to the building's exterior wall, and the aluminum sheet is then installed on the support frame. This structural form is equivalent to adding an overhang to the original roof. The structural strength of the overhang depends entirely on the strength of the aluminum sheet support frame, which is only connected to the building's exterior wall. The overall installation difficulty is low, but the strength is also limited, making it only suitable for small buildings. The other is that the original roof already has an overhang structure, and the roof beams and overhang beams are both connected and fixed to the structural columns. The aluminum sheet support frame can be directly welded to the overhang beams and roof beams to create the shape. However, this structure also has significant drawbacks: 1. The cantilever beams and roof beams are the original building matrix, and their dimensions do not match the grid dimensions of the aluminum curtain wall. The large deviation of the building matrix increases the difficulty of installing the aluminum panels. 2. Welding the aluminum panel support frame directly to the cantilever beams or roof beams involves a large amount of high-altitude welding. The large number of construction workers and equipment on site not only poses a safety hazard, but also affects the control of welding position and quality, and construction efficiency cannot be effectively improved. 3. The large number of aluminum panels spliced ​​at high altitude places high demands on the construction workers, and the surface flatness of the aluminum panels after installation is difficult to ensure. 4. The construction measures last too long, and the cost pressure is high.

[0003] Therefore, how to create a new overhanging aluminum curtain wall structure and its construction method is one of the important research and development topics at present. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an overhanging aluminum plate curtain wall structure with a supporting frame that conforms to the steel structure overhanging eaves and meets the requirements of the aluminum plate grid size, thereby overcoming the shortcomings of the existing technology.

[0005] In order to solve the above technical problems, the present invention provides an overhanging aluminum plate curtain wall structure, comprising an overhanging steel structure, an inclined beam, a beam underhanging member, a beam end hanging member, a first galvanized angle steel, a second galvanized angle steel and an aluminum plate component;

[0006] The cantilever steel structure includes roof beams, roof purlins, cantilever beams and eaves purlins. The cantilever beams are welded obliquely under the roof beams to provide oblique support for the roof beams. The eaves purlins are horizontally connected under the cantilever beams. The roof purlins are horizontally erected on the roof beams. The roof purlins are fully paved with roof slope steel plates.

[0007] The inclined beam is tilted and parallel to the cantilever beam. The bottom of the inclined beam extends horizontally and is welded to the steel column. The middle part is connected and fixed to the eaves purlin through a stainless steel bolt group. The top part is connected and fixed to the first adapter through a stainless steel bolt group. The first adapter is welded to the side wall of the roof beam near the eaves.

[0008] The beam hangers are L-shaped, with both ends welded to the lower surface of the inclined beam. Several beam hangers are evenly spaced along the length of the inclined beam to form a stepped structure below the inclined beam. The first galvanized angle steel arranged horizontally is welded between the beam hangers at the same height.

[0009] The beam end hanger is in an inverted F shape, with both horizontal ends welded to the lower surface of the inclined beam. The vertical part is located outside the roof beam, and the top of the vertical part is higher than the roof beam. Between adjacent beam end hangers, a second galvanized angle steel is welded horizontally on the top of the vertical part.

[0010] The aluminum plate component is connected and fixed to the first galvanized angle steel and the second galvanized angle steel through angle brackets to form a stepped exterior surface.

[0011] As an improvement of the present invention, the aluminum plate component includes a first component, a second component and a third component, and the first component, the second component and the third component are all stepped structures formed by bending the aluminum plate multiple times;

[0012] The first component is located at the bottom layer, wrapped around the outside of the beam hanger, with the top connected to the first galvanized angle steel at the bottom layer, and the bottom extending to the facade curtain wall and connected to the third galvanized angle steel on the steel column;

[0013] The second component is connected end to end and wrapped around the outside of the beam hanger, with the top connected to the upper first galvanized angle steel and the bottom connected to the lower first galvanized angle steel;

[0014] The third component is covered on the outside of the beam end hanger, with the top connected to the second galvanized angle steel and the bottom connected to the topmost first galvanized angle steel.

[0015] Furthermore, the bottom end of the first component is connected to the vertical aluminum plate installed on the third galvanized angle steel, and an aluminum base and an aluminum buckle cover are installed at the joint. A foam rod is placed between the aluminum base, the first component and the vertical aluminum plate, and the foam rod is coated with sealant.

[0016] Furthermore, foam rods are placed in the joints between the first component and the second component, the joints between adjacent second components, and the joints between the second component and the third component, and the foam rods are coated with sealant.

[0017] Furthermore, the top flange of the third component has the same slope as the roof slope steel plate, and a foam rod is inserted into the joint between the third component and the roof slope steel plate, and the foam rod is coated with sealant.

[0018] Furthermore, the third component is bent at the eaves position to form a lower triangular drip eaves.

[0019] Furthermore, the steel column is vertically arranged outside the concrete structure, a rear embedded plate is fixed to the concrete structure by a self-expanding bottom mechanical anchor bolt, a second adapter extending horizontally and longitudinally is welded to the rear embedded plate, and the steel column is connected and fixed to the second adapter by bolts;

[0020] A third galvanized angle steel is welded horizontally on the steel column, and the facade aluminum plate is connected to the third galvanized angle steel through an angle bracket;

[0021] A steel insert is inserted into the connection between the steel column and the second adapter;

[0022] A sealing plate is welded to the side wall of the steel column close to the concrete structure, and thermal insulation rock wool is filled between the sealing plate and the third galvanized angle steel.

[0023] Furthermore, the inclined beam and the first adapter are both made of 8# channel steel, the lower beam hanger is welded with L50×50×4mm angle steel, the beam end hanger is welded with 50×50×4mm rectangular steel pipe, the specifications of the first galvanized angle steel and the second galvanized angle steel are both L50×50×4mm, and the aluminum plate component is made of 3mm thick aluminum single plate with fluorocarbon spraying treatment on the surface.

[0024] Furthermore, the rear embedded plate adopts 300×200×8mm galvanized steel plate, the second adapter adopts 8# channel steel, the specification of the third galvanized angle steel is L50×50×4mm, the facade aluminum plate adopts 3mm thick aluminum single plate, and the surface is fluorocarbon sprayed.

[0025] In addition, the present invention also provides a construction method with a simple process, convenient construction, reduced high-altitude welding, and easy control of construction quality, thereby overcoming the shortcomings of the existing technology.

[0026] In order to solve the above technical problems, the present invention provides a construction method for constructing the above-mentioned cantilevered aluminum plate curtain wall structure, and the specific construction steps include:

[0027] S1. Installation of rear embedded plate and adapter;

[0028] Fix the rear embedded plate on the concrete structure with self-expanding bottom mechanical anchor bolts according to the designed position. After fixing, weld the nut to the rear embedded plate and weld the second adapter to the rear embedded plate.

[0029] Weld the first adapter on the side wall of the roof beam according to the designed position;

[0030] S2. Installation of steel columns and third galvanized angle steel

[0031] Insert the steel insert into the steel column, connect the steel column and the steel insert to the second adapter, and make the bolt pass through the second adapter, the steel column, and the steel insert horizontally. Adjust the distance between the steel column and the concrete structure and tighten the nut.

[0032] After all steel columns are installed, weld the third horizontal galvanized angle steel between adjacent steel columns according to the designed position;

[0033] S3, installation of inclined beams, under-beam hangers and beam end hangers;

[0034] Weld the lower beam hangers and the end beam hangers to the lower surface of the inclined beam at the designated positions on the ground. After welding, hoist the entire structure. The top of the inclined beam is fixed to the first adapter with a stainless steel bolt group. The middle of the inclined beam is fixed to the eaves purlin with a stainless steel bolt group. The bottom of the inclined beam is welded to the corresponding steel column.

[0035] S4, installation of the first galvanized angle steel and the second galvanized angle steel;

[0036] Weld a first horizontal galvanized angle steel between adjacent beam lower hangers at the same height, and weld a second horizontal galvanized angle steel on the top of adjacent beam end hangers;

[0037] S5. Installation of sealing panels and thermal insulation rock wool;

[0038] Weld a cover plate on the side of the steel column facing the concrete structure, fill the space between the cover plate and the third galvanized angle steel with thermal insulation rock wool, and secure it with thermal insulation rock wool nails;

[0039] S6. Installation of aluminum plate components and facade aluminum panels;

[0040] Install the third component, the second component, the first component and the facade aluminum plate in order from top to bottom;

[0041] The third component is connected and fixed to the second galvanized angle steel and the first galvanized angle steel through angle brackets;

[0042] The second component is connected and fixed to the first galvanized angle steel through an angle code;

[0043] The first component is connected and fixed to the first galvanized angle steel and the third galvanized angle steel through angle brackets;

[0044] The facade aluminum plate is connected and fixed to the third galvanized angle steel through angle brackets;

[0045] S7, installation of aluminum base and aluminum buckle cover;

[0046] Install aluminum bases and aluminum buckle covers at the gaps between adjacent facade aluminum plates and between the facade aluminum plates and the first component. Fill foam rods between the aluminum bases and the facade aluminum plates and between the aluminum bases and the first component, and apply sealant to the foam rods.

[0047] Foam rods are placed in the gaps between the first and second components, the gaps between adjacent second components, the gaps between the second and third components, and the joints between the third component and the roof slope steel plate, and the foam rods are coated with sealant.

[0048] After adopting such a design, the present invention has at least the following advantages:

[0049] 1. The inclined beam, beam underhang, beam end hanger, first galvanized angle steel and second galvanized angle steel together form the supporting skeleton of the cantilever aluminum plate. The inclined beam is welded and fixed to the steel column, so that the supporting skeleton of the facade curtain wall and the cantilever curtain wall are connected as one, forming a stable support system and transmitting the load vertically;

[0050] 2. The lower end of the upper aluminum plate component and the upper end of the lower aluminum plate component are both connected to the first galvanized angle steel, making it easier to position adjacent aluminum plate components and easier to control the gap at the joint;

[0051] 3. The inclined beams, beam underhangs and beam end hangers are assembled on the ground. Compared with traditional high-altitude welding, the welding quality and dimensional accuracy are easier to control, which also reduces safety risks, improves on-site construction efficiency, and effectively meets on-site progress requirements;

[0052] 4. By setting up inclined beams, beam underhangs and beam end hangers, the grid size requirements of aluminum plate components are met to reduce the difficulty of construction;

[0053] 5. Reasonable structure and easy construction.

[0054] 6. Reduce the duration of use of construction equipment and reasonably reduce project costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] Figure 1 It is a structural schematic diagram of an overhanging aluminum plate curtain wall structure provided by the present invention.

[0057] Figure 2 yes Figure 1 Schematic diagram of the local structure at point A in the middle.

[0058] Figure 3 yes Figure 1 Schematic diagram of the local structure at point B.

[0059] Figure 4 yes Figure 1 Schematic diagram of the local structure at point C in the middle.

[0060] Figure 5 yes Figure 1Schematic diagram of the local structure at point D in the middle.

[0061] Explanation of reference numerals: 1. Overhanging eaves curtain wall; 11. Inclined beam; 12. Beam underhanging member; 13. Beam end hanging member; 14. First adapter; 15. Stainless steel bolt assembly; 16. First galvanized angle steel; 17. Second galvanized angle steel; 18. Aluminum plate member; 181. First member; 182. Second member; 183. Third member; 1831. Drip eaves; 19. Foam rod; 110. Sealant; 2. Facade curtain wall; 21 , steel column; 22. Third galvanized angle steel; 23. Post-embedded plate; 24. Self-expanding bottom mechanical anchor bolt; 25. Second adapter; 26. Sealing plate; 27. Insulating rock wool; 28. Steel insert; 29. ​​Facade aluminum plate; 210. Aluminum base; 211. Aluminum buckle cover; 3. Cantilever steel structure; 31. Roof beam; 32. Cantilever beam; 33. Roof purlin; 34. Eaves purlin; 35. Roof slope water steel plate; 4. Concrete structure. DETAILED DESCRIPTION

[0062] See also Figures 1 to 5 The present invention provides an overhanging aluminum plate curtain wall structure, comprising an overhanging curtain wall 1, an overhanging steel structure 3, a facade curtain wall 2, and a concrete structure 4.

[0063] The facade curtain wall 2 is installed outside the concrete structure 4 as a decorative surface. The facade curtain wall 2 includes a steel column 21, a third galvanized angle steel 22 and a facade aluminum plate 29. The steel column 21 is vertically arranged on the outside of the concrete structure 4. A rear embedded plate 23 is fixed to the concrete structure 4 by a self-expanding bottom mechanical anchor 24. A second adapter 25 extending horizontally and longitudinally is welded to the rear embedded plate 23. A steel insert 28 is inserted into the interior of the steel column 21 and is connected and fixed to the second adapter 25 by bolts. A horizontally arranged third galvanized angle steel 22 is welded to the steel column 21. The steel column 21 and the third galvanized angle steel 22 constitute the supporting skeleton of the facade curtain wall 2. The facade aluminum plate 29 is connected to the third galvanized angle steel 22 by an angle code. A sealing plate 26 is welded to the side wall of the steel column 21 close to the concrete structure 4, and insulating rock wool 27 is filled between the sealing plate 26 and the third galvanized angle steel 22.

[0064] In this embodiment, the rear embedded plate 23 is made of 300×200×8mm galvanized steel plate, the second adapter 25 is made of 8# channel steel, the specifications of the third galvanized angle steel 22 are L50×50×4mm, and the vertical aluminum plate 29 is made of 3mm thick aluminum single plate with fluorocarbon spraying treatment on the surface.

[0065] The cantilever steel structure 3 includes a roof beam 31, a roof purlin 33, a cantilever beam 32 and an eaves purlin 34. The cantilever beam 32 is welded obliquely to the bottom of the roof beam 31 to provide oblique support for the roof beam 31. The eaves purlin 34 is horizontally connected to the bottom of the cantilever beam 32. The roof purlin 33 is horizontally erected on the roof beam 31. The roof purlin 33 is fully paved with a roof slope steel plate 35.

[0066] The cantilever curtain wall 1 is installed on the outside of the cantilever steel structure 3 as a decorative surface, including an inclined beam 11, a beam bottom hanger 12, a beam end hanger 13, a first galvanized angle steel 16, a second galvanized angle steel 17 and an aluminum plate component 18.

[0067] The inclined beam 11 is tilted and parallel to the cantilever beam 32. The bottom of the inclined beam 11 extends horizontally and is welded to the steel column 21. The middle portion is connected to the eaves purlin 34 via a stainless steel bolt group 15. The top portion is also connected to the first adapter 14 via a stainless steel bolt group 15. The first adapter 14 is welded to the side wall of the roof beam 31 near the eaves. The inclined beam 11 is the main support structure of the cantilever curtain wall 1. It is not only stably connected to the cantilever steel structure 3, but also welded to the steel column 21, forming a complete support system.

[0068] The beam hangers 12 are welded from angle steel profiles, forming an overall L-shape, with both ends welded to the bottom surface of the diagonal beam 11. Several hangers 12 are evenly spaced along the length of the diagonal beam 11, creating a stepped structure beneath the beam. The number of hangers 12 depends on the length of the diagonal beam 11 and the specific design spacing. A first galvanized angle steel 16 is welded horizontally between hangers 12 at the same height.

[0069] The beam end hangers 13 are welded from rectangular steel tubes and form an inverted F-shape. The two horizontal sections, one long and one short, are welded to the bottom surface of the diagonal beam 11. The vertical sections are located outside the roof beam 31, with the tops of the vertical sections higher than the roof beam 31. The beam end hangers 13 are located at the top of a row of beam hangers 12. A second galvanized steel angle 17 is welded horizontally to the tops of the vertical sections between adjacent beam end hangers 13.

[0070] Several underbeam hangers 12, end hangers 13, first galvanized steel angles 16, and second galvanized steel angles 17 together form a stepped grid frame surrounding the underside and sides of the cantilever steel structure 3, providing support and mounting points for aluminum plate members 18. Aluminum plate members 18 are connected and secured to the first and second galvanized steel angles 16, 17 via angle brackets, forming a stepped exterior finish.

[0071] The aluminum plate member 18 comprises a first member 181, a second member 182, and a third member 183, which are respectively mounted on the bottom, middle, and top layers of the stepped frame. The first, second, and third members 181, 182, and 183 have similar overall shapes, each formed from aluminum plates bent three times. The first section is horizontal, the second section is tilted at the same angle as the diagonal beam, the third section is horizontal, and the fourth section at the top is vertical. Together, these four continuous sections form a stepped shape.

[0072] The first component 181 is installed on the bottom layer of the stepped frame and is covered on the outside of the beam hanger 12. The two sides and top edges of the first component 181 are flanged at 90 degrees to form a frame to increase strength and connect corner brackets. The edge of the first section at the bottom has no frame. The top frame of the first component 181 is connected and fixed to the first galvanized angle steel 16 of the bottom layer. The bottom extends to the facade curtain wall 2 and is connected and fixed to the third galvanized angle steel 22. An aluminum base 210 and an aluminum buckle cover 211 are installed at the joint between the first component 181 and the facade aluminum plate 29 of the facade curtain wall 2. The aluminum base 210 is connected to the third galvanized angle steel 22 by screws. Foam rods 19 are placed between the two sides of the aluminum base 210 and the first component 181 and the facade aluminum plate 29. The foam rods 19 are coated with sealant 110 for waterproofing. The aluminum buckle cover 211 is snap-fitted to the outside of the aluminum base 210 for aesthetic decoration.

[0073] The second component 182 is installed in the middle layer of the stepped frame, connected end to end and wrapped around the outside of the beam hanger 12. The two sides and top edges of the second component 182 are also flanged at 90 degrees to form a frame, and the first edge of the bottom section has no frame. The top of the second component 182 is connected to the first galvanized angle steel 16 of the upper layer, and the bottom is connected to the first galvanized angle steel 16 of the lower layer. A joint is formed between the two adjacent second components 182 in the upper and lower layers at the first galvanized angle steel 16, and a foam rod 19 is inserted into the gap. The foam rod is coated with sealant 110. The joint between the second component 182 and the first component 181 is treated in the same way.

[0074] The third component 183 is installed on the top layer of the stepped frame and is covered on the outside of the beam end hanger 13. The two sides of the third component 183 are flanged at 90 degrees to form side frames. The bottom is frameless and connected to the first galvanized angle steel 16 of the top layer, and is connected to the second component 182. The top is flanged twice to form a C-shaped top frame, so that the top of the top frame has the same slope as the roof slope water steel plate 35. The side of the top frame is connected to the second galvanized angle steel 17 through an angle code and is connected to the roof slope water steel plate 35. Foam rods 19 are inserted into the joints between the bottom of the third component 183 and the second component 182, and the top of the third component 183 and the roof slope water steel plate 35. The foam rods 19 are coated with sealant 110. The third component 183 is bent at the eaves position to form a lower triangular drip eaves 1831.

[0075] In this embodiment, the inclined beam 11 and the first adapter 14 are both made of 8# channel steel, the beam lower hanger 12 is made of L50×50×4mm angle steel, the beam end hanger 13 is made of 50×50×4mm rectangular steel pipe, the specifications of the first galvanized angle steel 16 and the second galvanized angle steel 17 are both L50×50×4mm, and the aluminum plate component 18 is made of an aluminum single plate with a thickness of 3mm and a fluorocarbon spray treatment on the surface.

[0076] In addition, the present invention also provides a construction method for constructing the above-mentioned overhanging aluminum plate curtain wall structure. The specific construction steps include S1 to S7. Steps S1 to S7 are described in detail below.

[0077] It should be noted that the cantilever steel structure 3 and the concrete structure 4 are the building base structure and have been completed before step S1. In addition, the processing of all parts and the on-site measurement and layout are also completed before step S1.

[0078] Step S1: Install the rear embedded plate and adapter.

[0079] According to the designed position, the rear embedded plate 23 is fixed on the concrete structure 4 by the self-expanding bottom mechanical anchor bolt 24 . After being fixed, the nut is welded to the rear embedded plate 23 , and the second adapter 25 is welded to the rear embedded plate 23 .

[0080] The first adapter 14 is welded to the side wall of the roof beam 31 according to the designed position.

[0081] Step S2: Installation of steel columns and third galvanized angle steel.

[0082] Insert the steel insert 28 into the steel column 21, connect the steel column 21 and the steel insert 28 to the second adapter 25, and make the bolts pass through the second adapter 25, the steel column 21 and the steel insert 28 horizontally. Adjust the distance between the steel column 21 and the concrete structure 4 and then tighten the nut.

[0083] After all the steel columns 21 are installed, a third horizontal galvanized angle steel 22 is welded between adjacent steel columns 21 according to the designed position.

[0084] Step S3: Install the inclined beam, the under-beam hangers and the beam end hangers.

[0085] The beam bottom hanger 12 and the beam end hanger 13 are welded to the lower surface of the inclined beam 11 at the specified position on the ground. After welding is completed, the entire beam is hoisted. The top of the inclined beam 11 is connected and fixed to the first adapter 14 through a stainless steel bolt group 15, the middle part of the inclined beam 11 is connected and fixed to the eaves purlin 34 through a stainless steel bolt group 15, and the bottom of the inclined beam 11 is welded and fixed to the corresponding steel column 21.

[0086] Step S4: Installing the first galvanized angle steel and the second galvanized angle steel.

[0087] A first horizontal galvanized angle steel 16 is welded between adjacent lower beam hangers 12 at the same height, and a second horizontal galvanized angle steel 17 is welded on top of adjacent end beam hangers 13 .

[0088] Step S5: Install the sealing board and thermal insulation rock wool.

[0089] A sealing plate 26 is welded to the side of the steel column 21 facing the concrete structure 4 , and thermal insulation rock wool 27 is filled between the sealing plate 26 and the third galvanized angle steel 22 and fixed with thermal insulation rock wool nails.

[0090] Step S6: installing aluminum plate components and facade aluminum plates;

[0091] According to the installation order from top to bottom, the third component 183, the second component 182, the first component 181 and the facade aluminum plate 29 are installed in sequence;

[0092] The third member 183 is connected and fixed to the second galvanized angle steel 17 and the first galvanized angle steel 16 via angle brackets. The second member 182 is connected and fixed to the first galvanized angle steel 16 via angle brackets. The first member 181 is connected and fixed to the first galvanized angle steel 16 and the third galvanized angle steel 22 via angle brackets. The facade aluminum plate 29 is connected and fixed to the third galvanized angle steel 22 via angle brackets.

[0093] Step S7: Install the aluminum base and aluminum buckle cover.

[0094] An aluminum base 210 and an aluminum buckle cover 211 are installed in the gaps between adjacent facade aluminum plates 29 and in the gaps between the facade aluminum plates 29 and the first component 181. Foam rods 19 are filled between the aluminum base 210 and the facade aluminum plates 29 and between the aluminum base 210 and the first component 181, and the foam rods 19 are coated with sealant 110.

[0095] Foam rods 19 are placed in the gaps between the first component 181 and the second component 182, the gaps between adjacent second components 182, the gaps between the second component 182 and the third component 183, and the joints between the third component 183 and the roof slope water steel plate 35, and the foam rods 19 are coated with sealant 110.

[0096] The present invention connects the supporting skeleton of the facade curtain wall with the stepped frame of the eaves curtain wall to form a stable and firm support system. By arranging inclined beams, the stepped frame is made to conform to the steel structure eaves and meet the grid size of the aluminum plate components. The inclined beams, under-beam hangers and beam end hangers are assembled on the ground, which reduces the amount of high-altitude welding, reduces safety risks, and makes it easier to control the welding position and quality. The joints between the aluminum plate components have a reasonable structure, which facilitates the control of the gap position and width, and reduces the difficulty of construction.

[0097] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art can make some simple modifications, equivalent changes or modifications based on the technical content disclosed above, which all fall within the scope of protection of the present invention.

Claims

1. A cantilevered aluminum plate curtain wall structure, characterized in that: It includes cantilever steel structure, inclined beam, beam bottom hanger, beam end hanger, first galvanized angle steel, second galvanized angle steel and aluminum plate components; The cantilever steel structure includes roof beams, roof purlins, cantilever beams and eaves purlins. The cantilever beams are welded obliquely under the roof beams to provide oblique support for the roof beams. The eaves purlins are horizontally connected under the cantilever beams. The roof purlins are horizontally erected on the roof beams. The roof purlins are fully paved with roof slope steel plates. The inclined beam is tilted and parallel to the cantilever beam. The bottom of the inclined beam extends horizontally and is welded to the steel column. The middle part is connected and fixed to the eaves purlin through a stainless steel bolt group. The top part is connected and fixed to the first adapter through a stainless steel bolt group. The first adapter is welded to the side wall of the roof beam near the eaves. The beam hangers are L-shaped, with both ends welded to the lower surface of the inclined beam. Several beam hangers are evenly spaced along the length of the inclined beam to form a stepped structure below the inclined beam. The first galvanized angle steel arranged horizontally is welded between the beam hangers at the same height. The beam end hanger is in an inverted F shape, with both horizontal ends welded to the lower surface of the inclined beam. The vertical part is located outside the roof beam, and the top of the vertical part is higher than the roof beam. Between adjacent beam end hangers, a second galvanized angle steel is welded horizontally on the top of the vertical part. The aluminum plate component is connected and fixed to the first galvanized angle steel and the second galvanized angle steel through angle brackets to form a stepped exterior surface.

2. The overhanging aluminum plate curtain wall structure according to claim 1, characterized in that: The aluminum plate component includes a first component, a second component and a third component, and the first component, the second component and the third component are all stepped structures formed by bending the aluminum plate multiple times; The first component is located at the bottom layer, wrapped around the outside of the beam hanger, with the top connected to the first galvanized angle steel at the bottom layer, and the bottom extending to the facade curtain wall and connected to the third galvanized angle steel on the steel column; The second component is connected end to end and wrapped around the outside of the beam hanger, with the top connected to the upper first galvanized angle steel and the bottom connected to the lower first galvanized angle steel; The third component is covered on the outside of the beam end hanger, with the top connected to the second galvanized angle steel and the bottom connected to the topmost first galvanized angle steel.

3. The overhanging aluminum plate curtain wall structure according to claim 2, characterized in that: The bottom end of the first component is connected to the vertical aluminum plate installed on the third galvanized angle steel. An aluminum base and an aluminum buckle cover are installed at the joint. A foam rod is placed between the aluminum base, the first component and the vertical aluminum plate, and the foam rod is coated with sealant.

4. The overhanging aluminum plate curtain wall structure according to claim 2, characterized in that: Foam rods are placed in the joints between the first component and the second component, the joints between adjacent second components, and the joints between the second component and the third component, and the foam rods are coated with sealant.

5. The overhanging aluminum plate curtain wall structure according to claim 2, characterized in that: The top flange of the third component has the same slope as the roof slope steel plate, and a foam rod is inserted into the joint between the third component and the roof slope steel plate, and the foam rod is coated with sealant.

6. The overhanging aluminum plate curtain wall structure according to claim 2, characterized in that: The third component is bent at the eaves position to form a lower triangular drip eaves.

7. The overhanging aluminum plate curtain wall structure according to claim 1, characterized in that: The steel column is vertically arranged outside the concrete structure, and a rear embedded plate is fixed to the concrete structure by a self-expanding bottom mechanical anchor bolt. A second adapter extending horizontally and longitudinally is welded to the rear embedded plate, and the steel column is connected and fixed to the second adapter by bolts. A third galvanized angle steel is welded horizontally on the steel column, and the facade aluminum plate is connected to the third galvanized angle steel through an angle bracket; A steel insert is inserted into the connection between the steel column and the second adapter; A sealing plate is welded to the side wall of the steel column close to the concrete structure, and thermal insulation rock wool is filled between the sealing plate and the third galvanized angle steel.

8. The overhanging aluminum plate curtain wall structure according to claim 1, characterized in that: The inclined beam and the first adapter are both made of 8# channel steel, the lower beam hanger is welded with L50×50×4mm angle steel, the beam end hanger is welded with 50×50×4mm rectangular steel pipe, the specifications of the first galvanized angle steel and the second galvanized angle steel are both L50×50×4mm, and the aluminum plate component is made of 3mm thick aluminum single plate with fluorocarbon spraying treatment on the surface.

9. The overhanging aluminum plate curtain wall structure according to claim 7, characterized in that: The rear embedded plate is made of 300×200×8mm galvanized steel plate, the second adapter is made of 8# channel steel, the third galvanized angle steel has a specification of L50×50×4mm, and the facade aluminum plate is made of 3mm thick aluminum single plate with fluorocarbon spraying treatment on the surface.

10. A construction method, characterized in that: For constructing an overhanging aluminum plate curtain wall structure according to any one of claims 1 to 9, the specific construction steps include: S1. Installation of rear embedded plate and adapter Fix the rear embedded plate on the concrete structure with self-expanding bottom mechanical anchor bolts according to the designed position. After fixing, weld the nut to the rear embedded plate and weld the second adapter to the rear embedded plate. Weld the first adapter on the side wall of the roof beam according to the designed position; S2, installation of steel columns and third galvanized angle steel; Insert the steel insert into the steel column, connect the steel column and the steel insert to the second adapter, and make the bolt pass through the second adapter, the steel column, and the steel insert horizontally. Adjust the distance between the steel column and the concrete structure and tighten the nut. After all steel columns are installed, weld the third horizontal galvanized angle steel between adjacent steel columns according to the designed position; S3, installation of inclined beams, under-beam hangers and beam end hangers; Weld the lower beam hangers and the end beam hangers to the lower surface of the inclined beam at the designated positions on the ground. After welding, hoist the entire structure. The top of the inclined beam is fixed to the first adapter with a stainless steel bolt group. The middle of the inclined beam is fixed to the eaves purlin with a stainless steel bolt group. The bottom of the inclined beam is welded to the corresponding steel column. S4, installation of the first galvanized angle steel and the second galvanized angle steel; Weld a first horizontal galvanized angle steel between adjacent beam lower hangers at the same height, and weld a second horizontal galvanized angle steel on the top of adjacent beam end hangers; S5. Installation of sealing panels and thermal insulation rock wool; Weld a cover plate on the side of the steel column facing the concrete structure, fill the space between the cover plate and the third galvanized angle steel with thermal insulation rock wool, and secure it with thermal insulation rock wool nails; S6. Installation of aluminum plate components and facade aluminum panels; Install the third component, the second component, the first component and the facade aluminum plate in order from top to bottom; The third component is connected and fixed to the second galvanized angle steel and the first galvanized angle steel through angle brackets; The second component is connected and fixed to the first galvanized angle steel through an angle code; The first component is connected and fixed to the first galvanized angle steel and the third galvanized angle steel through angle brackets; The facade aluminum plate is connected and fixed to the third galvanized angle steel through angle brackets; S7, installation of aluminum base and aluminum buckle cover; Install aluminum bases and aluminum buckle covers at the gaps between adjacent facade aluminum plates and between the facade aluminum plates and the first component. Fill foam rods between the aluminum bases and the facade aluminum plates and between the aluminum bases and the first component, and apply sealant to the foam rods. Foam rods are placed in the gaps between the first and second components, the gaps between adjacent second components, the gaps between the second and third components, and the joints between the third component and the roof slope steel plate, and the foam rods are coated with sealant.

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