Arc-shaped curved surface lamp trough suspended ceiling structure and installation and construction method thereof

Abstract

The invention discloses an arc-shaped curved surface lamp trough ceiling structure, through the cooperation of an arc-shaped lamp trough GRG upper plate and an arc-shaped lamp trough GRG lower plate node and the unique design of a cantilever beam upper structure, the arc-shaped curved surface lamp trough ceiling structure is provided, a wavy lamp strip shape is formed, and the unique and ornamental shape meets different increasing requirements; the LED lamp strip can be matched with and correspond to a basic lamp strip to form an annular and wavy lamp strip, the LED lamp strip has a strong advanced atmosphere, rhythm and rhythm are formed in visual perception, delicate lines are expressed through a modern structural system and structural members, and through reasonable design of a steel structure, design of structural connection and design of construction steps, the LED lamp strip is more attractive in appearance and more attractive in appearance. The strength requirement, the safety requirement and the use requirement of the structure are met, and construction of the curved surface lamp groove ceiling structure is achieved.

Description

Technical Field

[0001] This invention belongs to the field of architectural decoration, and specifically relates to an arc-shaped curved surface light trough ceiling structure and its installation method. Background Technology

[0002] Currently, in order to provide visitors with a better view, more and more shopping malls are setting up central areas in atrium structures that connect multiple floors, thus creating a wide field of vision and a better experience.

[0003] Ceiling light strips are usually installed in the recesses of the ceiling, so the light source is not visible. They provide soft and even lighting by reflecting light and mainly serve a decorative and ambiance-creating function. Currently, light strips are usually installed as a ring around the cantilevered ceiling, which has the disadvantage of monotonous design. With the development of architectural decoration, there is a need for targeted design of ceiling light strips. Summary of the Invention

[0004] This invention provides an arc-shaped curved surface light trough ceiling structure and its installation method to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an arc-shaped curved surface light trough ceiling structure, comprising a cantilevered floor slab, a cantilever beam at the bottom of the cantilevered end of the cantilevered floor slab, a transition layer hanger installed at the bottom of the cantilevered floor slab by expansion bolts, a transition layer steel frame welded to the bottom of the transition layer hanger, threaded hangers connected to the transition layer steel frame by nuts, hooks connected to the bottom of the threaded hangers by nuts, a ceiling main keel inside the hook, a ceiling secondary keel welded to the bottom of the ceiling main keel, a lightweight non-combustible ceiling board fixedly installed at the bottom of the ceiling secondary keel, horizontal bars for installing the light trough welded to the cantilever beam, a double row of steel frames fixed to the inner side of the cantilever beam by expansion bolts, and the outer side and bottom of the double row of steel frames respectively... Several horizontal bars are welded to the bottom of the light trough. An upper arc-shaped light trough GRG plate is fixed on the horizontal bars, and a lower arc-shaped light trough GRG plate is fixed on the horizontal bars. The upper and lower arc-shaped light trough GRG plates are staggered, with the upper arc-shaped light trough GRG plate located on the outside. The bottom end of the upper arc-shaped light trough GRG plate extends to the outside of the lower arc-shaped light trough GRG plate and turns towards it. The lower arc-shaped light trough GRG plate turns towards the upper arc-shaped light trough GRG plate. An arc-shaped curved light strip is installed in the groove formed by the bottom of the lower arc-shaped light trough GRG plate and the upper arc-shaped light trough GRG plate. The height of the upper arc-shaped light trough GRG plate continuously fluctuates, thus forming a wave-like shape for the arc-shaped curved light strip.

[0006] Preferably, a basic light strip keel is fixedly installed at the bottom of the secondary ceiling keel, and a basic light strip upright is fixed on the basic light strip keel. A light strip lightweight non-combustible board is fixedly installed in the groove formed by the basic light strip keel, the basic light strip upright, and the secondary ceiling keel. A basic light strip GRG decorative panel is installed at the outer end of the light strip lightweight non-combustible board and below the basic light strip keel. It is spliced ​​with the light trough lightweight non-combustible board and turns beyond the light strip lightweight non-combustible board. The basic light strip is installed in the inner corner groove at the bottom of the light strip lightweight non-combustible board. The bottom end of the arc-shaped light trough GRG lower plate is arc-shaped and fixed at the end of the basic light strip keel. The lowest position of the arc-shaped light trough GRG upper plate gradually extends downward to the arc-shaped light strip lightweight non-combustible board. The arc-shaped light trough GRG lower plate gradually shortens and is eliminated. An arc-shaped curved upright is fixed on the basic light strip keel. The basic lightweight non-combustible board turns to the arc-shaped curved upright and turns horizontally, and an arc-shaped curved light strip is installed at the inner corner.

[0007] Preferably, an external mounting support plate is welded to the top outer side of the cantilever beam. The external mounting support plate is fixed to the vertical surface of the cantilever floor slab by expansion bolts. A top mounting support plate is provided at the top of the cantilever floor slab. An internal mounting base plate is also provided at the bottom end of the cantilever floor slab, located inside the cantilever beam. The internal mounting base plate and the top mounting support plate are connected by bolts. The top mounting support plate extends out of the external mounting support plate and has an upward-facing U-shaped steel welded to its top end. A top closing plate is welded to the outside of the U-shaped steel. An external closing plate is welded to the bottom end of the top closing plate. A horizontal bar for mounting the light trough is welded to the external mounting support plate.

[0008] Preferably, a reinforcing diagonal brace is provided between the bottom end of the double-row steel frame and the cantilever floor slab, and an angle steel seat corresponding to the reinforcing diagonal brace is fixed on the cantilever floor slab by expansion bolts, and the two ends of the reinforcing diagonal brace are welded and fixed.

[0009] Preferably, the bottom ends of the horizontal bar installed on the upper part of the light trough and the horizontal bar installed below the light trough are respectively welded with reinforcing angle steel.

[0010] Preferably, the outer sides of the top end plate and the outer end plate are welded with champagne-colored stainless steel.

[0011] Preferably, the end of the basic light strip keel has a bearing stagger, and the lower plate of the arc-shaped light trough GRG has an anti-cracking platform that rests on the bearing stagger. The bearing stagger and the anti-cracking platform are connected by screws. The upper plates of the horizontally adjacent arc-shaped light trough GRG are connected by a tongue and groove joint, and the lower plates of the horizontally adjacent arc-shaped light trough GRG are connected by a tongue and groove joint.

[0012] Preferably, the upper GRG plate of the arc-shaped light trough is a milky white GRG plate, and the lower GRG plate of the arc-shaped light trough is a champagne-colored GRG plate.

[0013] A construction method for an arc-shaped curved surface light trough ceiling structure includes the following steps. Step 1: Detailed design and layout. Based on the site design, the curved surface light strip forms a wave-shaped corresponding curved light trough GRG upper plate and curved light trough GRG lower plate. Step 2: Material fabrication, pre-embedding of back bolts for the upper and lower GRG plates of the curved light trough; Step 3: An external mounting support plate is welded to the top outer side of the cantilever beam. The external mounting support plate is fixed to the vertical surface of the cantilever floor slab with expansion bolts. A top mounting support plate is set at the top of the cantilever floor slab. An internal mounting base plate is also set at the bottom of the cantilever floor slab, which is located inside the cantilever beam. The internal mounting base plate and the top mounting support plate are connected by bolts. The top mounting support plate extends out of the external mounting support plate and has an upward-facing U-shaped steel welded to its top end. A top closing plate is welded to the outside of the U-shaped steel. An external closing plate is welded to the bottom end of the top closing plate. A horizontal bar for mounting the light trough is welded to the external mounting support plate. Step 4: An external mounting support plate is welded to the top outer side of the cantilever beam. The external mounting support plate is fixed to the vertical surface of the cantilever floor slab with expansion bolts. A top mounting support plate is set at the top of the cantilever floor slab. An inner mounting base plate is also set at the bottom of the cantilever floor slab, which is located inside the cantilever beam. The inner mounting base plate and the top mounting support plate are connected by bolts. The top mounting support plate extends out of the external mounting support plate and has an upward-facing U-shaped steel welded to its top end. A top closing plate is welded to the outside of the U-shaped steel. An external closing plate is welded to the bottom end of the top closing plate. A horizontal bar for mounting the light trough is welded to the external mounting support plate. Step 5: Install the upper and lower plates of the curved light trough GRG, and install the curved surface light strip.

[0014] The beneficial effects of this invention are as follows: 1. By coordinating the nodes of the upper and lower sections of the arc-shaped light trough GRG and the unique design of the structure on the cantilever beam, an arc-shaped curved light trough ceiling structure is provided, forming a wave-shaped light strip shape. The unique and aesthetically pleasing shape meets the diverse and ever-growing requirements. 2. This curved surface involves the transition between the facade and the top surface, giving it a greater sense of three-dimensionality in space; 3. This curved surface light trough ceiling structure and the base light strip can complement each other, forming a ring and a wave-shaped light strip, which has a strong high-end atmosphere and creates a rhythm and cadence in visual perception. It uses a modern structural system and structural components to express exquisite lines. Through the rational design of the steel structure, the design of the structural connection, and the design of the construction steps, the strength, safety and use requirements of the structure are met, and the construction of the curved surface light trough ceiling structure is realized.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objects and other advantages of the invention may be realized and obtained by means of the embodiments particularly pointed out in the description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure at the highest point of the arc-shaped curved surface light strip according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure at the lowest point of the arc-shaped curved light strip according to an embodiment of the present invention. Figure 3 This is a diagram of the finishing detail at the cantilevered floor slab according to an embodiment of the present invention; Figure 4 This is a diagram showing the anti-cracking node at the bottom of the GRG lower plate of the arc-shaped light trough according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the elevation view of an embodiment of the present invention; Figure 6 This is a schematic diagram of the top surface effect of an embodiment of the present invention.

[0017] Attached reference numerals: 1. Cantilevered floor slab; 2. Cantilevered beam; 3. Transfer floor hanger; 4. Transfer floor steel frame; 5. Threaded hanger; 6. Hanger hook; 7. Main ceiling joist; 8. Secondary ceiling joist; 9. Lightweight non-combustible ceiling board; 10. Horizontal bar installed on the light trough; 11. Double-row steel frame; 12. Horizontal bar installed below the light trough; 13. GRG upper plate of the curved light trough; 14. GRG lower plate of the curved light trough; 15. Curved surface light strip; 16. Basic light strip joist. 17. Basic LED strip support pole; 18. Lightweight non-combustible board for LED strip; 19. GRG decorative panel for basic LED strip; 20. Basic LED strip; 21. Curved surface support pole; 22. External mounting support plate; 23. Top mounting support plate; 24. Internal mounting base plate; 25. U-shaped steel; 26. Top closing plate; 27. External closing plate; 28. Reinforcing diagonal brace; 29. ​​Reinforcing angle steel; 30. Champagne-colored stainless steel; 31. Load-bearing platform; 32. Crack-resistant platform. Detailed Implementation

[0018] The technical solutions of the present invention will be described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and should not be construed as limiting the technical solutions of the present invention.

[0019] Combination Figure 1-6A curved surface light trough ceiling structure includes a cantilevered floor slab 1, a cantilever beam 2 at the bottom of the cantilevered end of the cantilevered floor slab 1, a transition layer hanger 3 installed at the bottom of the cantilevered floor slab 1 by expansion bolts, a transition layer steel frame 4 welded to the bottom of the transition layer hanger 3, a threaded hanger 5 connected to the transition layer steel frame 4 by nuts, a hook 6 connected to the bottom of the threaded hanger 5 by nuts, a ceiling main keel 7 inside the hook 6, a ceiling secondary keel 8 welded to the bottom of the ceiling main keel 7, a ceiling lightweight non-combustible board 9 fixedly installed at the bottom of the ceiling secondary keel 8, a light trough mounting crossbar 10 welded to the cantilever beam 2, a double row steel frame 11 fixed to the inner side of the cantilever beam 2 by expansion bolts, several light trough lower mounting crossbars 12 welded to the outer side and bottom of the double row steel frame 11, and an arc-shaped light trough GRG upper plate 13 fixed to the light trough upper mounting crossbar 10. The GRG board has an embedded part integrally manufactured (the embedded part is welded to the mounting crossbar). An arc-shaped GRG lower plate 14 is fixedly installed on the mounting crossbar 12 under the light trough. The arc-shaped GRG upper plate 13 and the arc-shaped GRG lower plate 14 are staggered, with the arc-shaped GRG upper plate 13 located on the outside. The bottom end of the arc-shaped GRG upper plate 13 extends to the outside of the arc-shaped GRG lower plate 14 and turns towards the arc-shaped GRG lower plate 14. The arc-shaped GRG lower plate 14 turns towards the arc-shaped GRG upper plate 13. An arc-shaped curved light strip 15 is installed in the groove formed by the bottom end of the arc-shaped GRG lower plate 14 and the arc-shaped GRG upper plate 13 (the circuit installation method of the light strip is the same as the conventional power supply method, and will not be described again). The height of the arc-shaped GRG upper plate 13 continuously fluctuates, so that the arc-shaped curved light strip 15 forms a wave shape.

[0020] A basic light strip keel 16 is fixedly installed at the bottom of the secondary ceiling keel 8. A basic light strip support pole 17 is fixed on the basic light strip keel 16. A lightweight non-combustible light strip board 18 is fixedly installed in the groove formed by the basic light strip keel 16, the basic light strip support pole 17, and the secondary ceiling keel 8. A basic light strip GRG decorative panel 19 is installed on the outer end of the lightweight non-combustible ceiling board 9, below the basic light strip keel 16, and is spliced ​​with the lightweight non-combustible light strip board and turns beyond the lightweight non-combustible light strip board 18. A basic light strip 20 is installed in the concave corner groove at the bottom of the lightweight non-combustible light strip board 18. The bottom end of the GRG lower plate 14 of the curved light trough is arc-shaped and fixed to the end of the base light strip keel 16. The lowest position of the upper plate 13 of the curved light trough gradually extends downward to the arc-shaped light-resistant non-combustible ceiling board 9. The lower plate 14 of the curved light trough gradually shortens and is eliminated. The curved surface upright 21 is fixed on the base light strip keel 16. The base light-resistant non-combustible board turns to the curved surface upright 21 and turns horizontally, and the curved surface light strip 15 is installed at the inside corner. The size of the base light strip keel 16 is variable to adapt to the gradual shortening and elimination of the lower plate 14 of the curved light trough.

[0021] An external mounting support plate 22 is welded to the top outer side of the cantilever beam 2. The external mounting support plate 22 is fixed to the facade of the cantilever floor slab 1 by expansion bolts. A top mounting support plate 23 is provided at the top of the cantilever floor slab 1. An inner mounting base plate 24 is also provided at the bottom end of the cantilever floor slab 1, located inside the cantilever beam 2. The inner mounting base plate 24 and the top mounting support plate 23 are connected by bolts. The top mounting support plate 23 extends out of the external mounting support plate 22 and has an upward-facing U-shaped steel 25 welded to its top end. A top closing plate 26 is welded to the outside of the U-shaped steel 25. An external closing plate 27 is welded to the bottom end of the top closing plate 26. A light trough mounting crossbar 10 is welded on the external mounting support plate 22.

[0022] A reinforcing brace 28 is provided between the bottom end of the double-row steel frame 11 and the cantilever floor slab 1. Angle steel seats corresponding to the reinforcing brace 28 are fixed on the cantilever floor slab 1 by expansion bolts. The two ends of the reinforcing brace 28 are welded and fixed.

[0023] The bottom ends of the horizontal bar 10 installed on the upper part of the light trough and the horizontal bar 12 installed below the light trough are respectively welded with reinforcing angle steel 29.

[0024] Champagne-colored stainless steel 30 is welded to the outer sides of the top end plate 26 and the outer end plate 27.

[0025] The end of the basic light strip keel 16 has a bearing misalignment 31, and the lower plate 14 of the arc-shaped light trough GRG has a crack-resistant support 32 that rests on the bearing misalignment 31. The bearing misalignment 32 and the crack-resistant support 32 are connected by screws. The upper plates 13 of the horizontally adjacent arc-shaped light trough GRG are connected by a tongue and groove joint, and the lower plates 14 of the horizontally adjacent arc-shaped light trough GRG are connected by a tongue and groove joint to ensure that the connection does not crack.

[0026] The upper GRG panel 13 of the curved light trough is made of milky white GRG board, and the lower GRG panel 14 of the curved light trough is made of champagne-colored GRG board.

[0027] A construction method for an arc-shaped curved surface light trough ceiling structure includes the following steps. Step 1: Detailed design and layout. Based on the site design, the curved surface light strip 15 forms a wave-shaped corresponding curved light trough GRG upper plate 13 and curved light trough GRG lower plate 14. Step 2: Material fabrication, pre-embedding of back bolts on the upper arc-shaped light trough GRG plate 13 and the lower arc-shaped light trough GRG plate 14; Step 3: An external mounting support plate 22 is welded to the outer side of the top of the cantilever beam 2. The external mounting support plate 22 is fixed to the vertical surface of the cantilever floor slab 1 by expansion bolts. A top mounting support plate 23 is set at the top of the cantilever floor slab 1. An inner mounting base plate 24 is also set at the bottom of the cantilever floor slab 1, which is located inside the cantilever beam 2. The inner mounting base plate 24 and the top mounting support plate 23 are connected by bolts. The top mounting support plate 23 extends out of the external mounting support plate 22 and has an upward-facing U-shaped steel 25 welded to the top of its end. A top closing plate 26 is welded to the outer side of the U-shaped steel 25. An external closing plate 27 is welded to the bottom of the end of the top closing plate 26. A light trough mounting crossbar 10 is welded on the external mounting support plate 22. Step 4: An external mounting support plate 22 is welded to the outer side of the top of the cantilever beam 2. The external mounting support plate 22 is fixed to the vertical surface of the cantilever floor slab 1 by expansion bolts. A top mounting support plate 23 is set at the top of the cantilever floor slab 1. An inner mounting base plate 24 is also set at the bottom of the cantilever floor slab 1, which is located inside the cantilever beam 2. The inner mounting base plate 24 and the top mounting support plate 23 are connected by bolts. The top mounting support plate 23 extends out of the external mounting support plate 22 and has an upward-facing U-shaped steel 25 welded to the top of its end. A top closing plate 26 is welded to the outer side of the U-shaped steel 25. An external closing plate 27 is welded to the bottom of the top closing plate 26. A light trough mounting crossbar 10 is welded on the external mounting support plate 22. Step 5: Install the upper plate 13 and lower plate 14 of the curved light trough GRG, and install the curved surface light strip 15.

[0028] In this embodiment 1, through the cooperation of the nodes of the upper plate 13 and the lower plate 14 of the arc-shaped light trough GRG, and the unique design of the structure on the cantilever beam 2, an arc-shaped curved light trough ceiling structure is provided, forming a wave-shaped light strip shape. The unique and aesthetically pleasing shape meets the diverse and ever-growing requirements. 2. This curved surface involves the transition between the facade and the top surface, giving it a greater sense of three-dimensionality in space; 3. This curved surface light trough ceiling structure and the base light strip can complement each other, forming a ring and a wave-shaped light strip, which has a strong high-end atmosphere and creates a rhythm and cadence in visual perception. It uses a modern structural system and structural components to express exquisite lines. Through the rational design of the steel structure, the design of the structural connection, and the design of the construction steps, the strength, safety and use requirements of the structure are met, and the construction of the curved surface light trough ceiling structure is realized.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A curved surface light trough ceiling structure, characterized in that: The structure includes a cantilevered floor slab (1), with a cantilever beam (2) at the bottom of the cantilevered end of the floor slab (1). A transfer layer hanger (3) is installed at the bottom of the floor slab (1) via expansion bolts. A transfer layer steel frame (4) is welded to the bottom of the transfer layer hanger (3). A threaded hanger (5) is connected to the transfer layer steel frame (4) via nuts. A hook (6) is connected to the bottom of the threaded hanger (5) via nuts. The hook (6) contains a lifting mechanism. The ceiling main keel (7) is welded to the bottom of the ceiling main keel (7), and the ceiling secondary keel (8) is fixedly installed at the bottom of the ceiling secondary keel (8). The cantilever beam (2) is welded with a light trough mounting bar (10). The inner side of the cantilever beam (2) is fixed with a double row of steel frame (11) by expansion bolts. The outer side and bottom of the double row of steel frame (11) are welded with several light trough mounting bars (12). An arc-shaped GRG upper plate (13) is fixed on a crossbar (10) mounted on the upper part of the light trough, and an arc-shaped GRG lower plate (14) is fixed on a crossbar (12) mounted below the light trough. The arc-shaped GRG upper plate (13) and the arc-shaped GRG lower plate (14) are staggered, with the arc-shaped GRG upper plate (13) located on the outer side. The bottom end of the arc-shaped GRG upper plate (13) extends to the arc-shaped GRG lower plate (14). The outer side turns towards the lower plate (14) of the arc-shaped light trough GRG, and the lower plate (14) of the arc-shaped light trough GRG turns towards the upper plate (13) of the arc-shaped light trough GRG. An arc-shaped curved light strip (15) is installed in the groove formed by the bottom end of the lower plate (14) of the arc-shaped light trough GRG and the upper plate (13) of the arc-shaped light trough GRG. The height of the upper plate (13) of the arc-shaped light trough GRG continuously fluctuates, so that the arc-shaped curved light strip (15) forms a wave shape.

2. The arc-shaped curved surface light trough ceiling structure according to claim 1, characterized in that: A basic light strip keel (16) is fixedly installed at the bottom of the secondary ceiling keel (8). A basic light strip pole (17) is fixed on the basic light strip keel (16). A light strip lightweight non-combustible board (18) is fixedly installed in the groove formed by the basic light strip keel (16), the basic light strip pole (17), and the secondary ceiling keel (8). A basic light strip GRG decorative panel (19) is installed on the outer end of the ceiling lightweight non-combustible board (9) and below the basic light strip keel (16). The GRG decorative panel (19) is spliced ​​with the light trough lightweight non-combustible board and turns to extend beyond the light strip lightweight non-combustible board (18). The base light strip (20) is installed in the inner corner groove at the bottom of the board (18). The bottom of the arc-shaped light trough GRG lower plate (14) is arc-shaped and fixed to the end of the base light strip keel (16). The lowest position of the arc-shaped light trough GRG upper plate (13) gradually extends downward to the arc-shaped light-resistant non-combustible ceiling board (9). The arc-shaped light trough GRG lower plate (14) gradually shortens and is removed. The arc-shaped curved surface pole (21) is fixed on the base light strip keel (16). The base lightweight non-combustible board turns to the arc-shaped curved surface pole (21) and turns horizontally, and the arc-shaped curved surface light strip (15) is installed at the inner corner.

3. The arc-shaped curved surface light trough ceiling structure according to claim 2, characterized in that: An external mounting support plate (22) is welded to the top outer side of the cantilever beam (2). The external mounting support plate (22) is fixed to the facade of the cantilever floor slab (1) by expansion bolts. A top mounting support plate (23) is provided on the top of the cantilever floor slab (1). An inner mounting base plate (24) is also provided at the bottom end of the cantilever floor slab (1) located inside the cantilever beam (2). The inner mounting base plate (24) and the top mounting support plate (23) are connected by bolts. The top mounting support plate (23) extends out of the external mounting support plate (22) and a U-shaped steel (25) with an upward opening is welded to the top end. A top closing plate (26) is welded to the outside of the U-shaped steel (25). An external closing plate (27) is welded to the bottom end of the top closing plate (26). A light trough mounting crossbar (10) is welded on the external mounting support plate (22).

4. The arc-shaped curved surface light trough ceiling structure according to claim 3, characterized in that: A reinforcing brace (28) is provided between the bottom end of the double-row steel frame (11) and the cantilever floor slab (1). An angle steel seat corresponding to the reinforcing brace (28) is fixed on the cantilever floor slab (1) by expansion bolts. The two ends of the reinforcing brace (28) are welded and fixed.

5. The arc-shaped curved surface light trough ceiling structure according to claim 4, characterized in that: The bottom ends of the horizontal bar (10) installed on the upper part of the lamp trough and the horizontal bar (12) installed below the lamp trough are respectively welded with reinforcing angle steel (29).

6. The arc-shaped curved surface light trough ceiling structure according to claim 5, characterized in that: The outer sides of the top end plate (26) and the outer end plate (27) are welded with champagne-colored stainless steel (30).

7. The arc-shaped curved surface light trough ceiling structure according to claim 6, characterized in that: The end of the basic light strip keel (16) has a bearing stagger (31), and the lower plate (14) of the arc-shaped light trough GRG has a crack-resistant platform (32) that rests on the bearing stagger (31). The bearing stagger (32) and the crack-resistant platform (32) are connected by screws. The upper plates (13) of the arc-shaped light trough GRG that are laterally adjacent are connected by a tongue and groove joint. The lower plates (14) of the arc-shaped light trough GRG that are laterally adjacent are connected by a tongue and groove joint.

8. The arc-shaped curved surface light trough ceiling structure according to claim 7, characterized in that: The upper GRG plate (13) of the arc-shaped light trough is a milky white GRG plate, and the lower GRG plate (14) of the arc-shaped light trough is a champagne-colored GRG plate.

9. A construction method for an arc-shaped curved surface light trough ceiling structure according to any one of claims 1-8, characterized in that: Includes the following steps, Step 1: Detailed design and layout. Based on the site design, the curved surface light strip (15) is used to form the corresponding wavy curved light trough GRG upper plate (13) and curved light trough GRG lower plate (14). Step 2: Material fabrication, pre-embedding back bolts on the upper (13) and lower (14) of the arc-shaped light trough GRG plate; Step 3: The top outer side of the cantilever beam (2) is welded with an external mounting support plate (22). The external mounting support plate (22) is fixed to the vertical surface of the cantilever floor slab (1) by expansion bolts. The top of the cantilever floor slab (1) is provided with a top mounting support plate (23). The bottom end of the cantilever floor slab (1) is located inside the cantilever beam (2) and an inner mounting base plate (24) is also provided. The inner mounting base plate (24) and the top mounting support plate (23) are connected by bolts. The top mounting support plate (23) extends out of the external mounting support plate (22) and the top end is welded with an upward-facing U-shaped steel (25). The outer side of the U-shaped steel (25) is welded with a top closing plate (26). The bottom end of the top closing plate (26) is welded with an external closing plate (27). The external mounting support plate (22) is welded with a light trough mounting crossbar (10). Step 4: The top outer side of the cantilever beam (2) is welded with an external mounting support plate (22). The external mounting support plate (22) is fixed to the vertical surface of the cantilever floor slab (1) by expansion bolts. The top of the cantilever floor slab (1) is provided with a top mounting support plate (23). The bottom end of the cantilever floor slab (1) is located inside the cantilever beam (2) and an inner mounting base plate (24) is also provided. The inner mounting base plate (24) and the top mounting support plate (23) are connected by bolts. The top mounting support plate (23) extends out of the external mounting support plate (22) and the top end is welded with an upward-facing U-shaped steel (25). The outer side of the U-shaped steel (25) is welded with a top closing plate (26). The bottom end of the top closing plate (26) is welded with an external closing plate (27). The external mounting support plate (22) is welded with a light trough mounting crossbar (10). Step 5: Install the upper plate (13) and lower plate (14) of the curved light trough GRG, and install the curved surface light strip (15).

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