Large-space steel truss upper suspension cable-stayed conversion layer suspended ceiling structure and construction method

Abstract

The application discloses a large-space steel truss upper suspension cable-stayed conversion layer suspended ceiling structure and a construction method, and relates to the technical field of building construction, in particular to a large-space steel truss upper suspension cable-stayed conversion layer suspended ceiling structure and a construction method. The structure comprises a main steel truss, a hoop installed on a lower chord of the main steel truss, wherein the hoop extends upwards to the upper side of the lower chord to form an upper projection structure, a main ridge arranged below the main steel truss and connected with the hoop, a secondary ridge installed on the top surface of the main ridge, cable-stayed rods symmetrically arranged on both sides of the hoop, one end of each cable-stayed rod being connected with the upper projection structure of the hoop, and the other end being connected with the main ridge, and a suspended ceiling structure connected with the secondary ridge through a suspender. The application integrates a systematic construction method of BIM virtual construction, modular prefabrication, high-precision three-dimensional positioning and rapid assembly installation, aims to solve the problems of traditional high-altitude bulk loading, on-site welding process difficult to adapt to large-span and high-clearance space construction requirements, precision out of control, low efficiency, high safety risk and serious material waste, and finally realizes efficient, high-precision and green construction of the steel framework conversion layer.

Description

Technical Field

[0001] This invention relates to the technical field of decoration and renovation, and in particular to a suspended ceiling structure and construction method for a large-space steel truss with a diagonally tensioned transfer layer. Background Technology

[0002] While pursuing architectural aesthetics and functional experience, large public transportation hubs such as airport terminals are increasingly adopting large-span spatial steel truss systems in their main structures to achieve an open and transparent internal space effect. The steel truss structure of such terminal projects typically has a span of 20-50m, which brings great technical challenges to the subsequent decoration and renovation work.

[0003] In the decoration project of the high space of the terminal building, in order to meet the mechanical and structural requirements of the installation of the base and surface layers of the large ceiling, a transfer layer must be set under the steel truss of the main structure. As an intermediate force transmission component connecting the main structure and the decorative panel, the transfer layer bears the entire load of the decorative ceiling and effectively transfers it to the main structure.

[0004] Due to the large span of the transition layer and its heavy self-weight and lower load, it is prone to significant elastic deflection and plastic deformation under gravity after installation. This deflection deformation not only damages the flatness and aesthetics of the decorative ceiling surface, but may even cause cracks in the joints of the decorative panels, affecting the building's functionality and safety. Furthermore, the existing ceiling structure design has not fully considered the elastic deflection and plastic deformation of the transition layer under its own weight and lower load, resulting in a serious discrepancy between the actual shape after installation and the design. Moreover, the compensation measures for the ceiling structure after deflection have not been adequately considered, seriously affecting the functionality and safety of the ceiling structure. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a large-space steel truss suspended inclined transfer layer ceiling structure and its construction method.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a suspended, inclined-stayed transfer layer ceiling structure for a large-space steel truss structure, comprising: Main steel truss; The clamp is installed on the lower chord of the main steel truss, and the clamp extends upward to the top of the lower chord to form an upward cantilever structure; The main keel is located below the main steel truss and connected to the clamps; Secondary keel, installed on the top surface of the main keel; Diagonal tie rods are symmetrically arranged on both sides of the clamp, with one end connected to the upper cantilever structure of the clamp and the other end connected to the main keel; The ceiling structure is connected to the secondary joists via hangers.

[0007] This invention discloses a suspended, inclined-stayed, conversion-level ceiling structure for a large-space steel truss. Further, the clamp includes two vertical members, a first member connected to the upper ends of the two vertical members, and a second member connected between the two vertical members and located below the first member. The clamp forms an upward-cantilever structure above the second member and a clamping space for passing through the lower chord in the area below the second member. The two vertical members are clamped onto the lower chord, and the second member is supported on the top surface of the lower chord. Tie rods are connected between the two vertical members at the bottom surface of the lower chord.

[0008] The present invention discloses a suspended inclined conversion layer ceiling structure for a large space steel truss. Further, the vertical members include two parallel channel steels, which are connected as a whole by connecting members. The main keel passes through the two channel steels and is connected to the channel steels by bolts.

[0009] The present invention discloses a suspended diagonal-stayed transition layer ceiling structure on a large-space steel truss. Further, a first ear plate is connected between two channel steels, a second ear plate is connected to the main keel, and one end of the diagonal tie rod is connected to the first ear plate and the other end is connected to the second ear plate.

[0010] The present invention discloses a suspended inclined conversion layer ceiling structure for a large space steel truss. Further, the main keel includes horizontal keels and longitudinal keels connected between the horizontal keels. The horizontal keels and longitudinal keels are perpendicular to each other to form a keel frame. The horizontal keels are connected to clamps.

[0011] This invention discloses a suspended ceiling structure for a large-space steel truss with a diagonally tensioned transition layer. Further, the ceiling structure includes a ceiling panel, a first angle bracket, a hanging keel, a transition piece, and an installation piece. Adjacent ceiling panels are arranged in a stepped configuration. A first angle bracket is fixedly installed on the surface of one end of the ceiling panel along its length, and a second angle bracket is installed on the hanger. The first angle bracket has an arc-shaped hole, and the second angle bracket has a round hole. The first and second angle brackets are connected by bolts. The other end of the ceiling panel is inserted into a slot on the installation piece. The upper end of the installation piece is connected to the hanger via the transition piece, and the lower end hooks onto the hanging keel. The hanging keel is located on the ceiling panel.

[0012] The present invention discloses a suspended inclined conversion layer ceiling structure for a large space steel truss. Further, the hanging keel includes a base keel fixedly installed on the ceiling panel along the width direction of the ceiling panel and an L-shaped keel fixedly installed on the base keel along the width direction of the ceiling panel. The upper end of the L-shaped keel is bent inward to form a bearing plate, and the lower end of the mounting component hooks onto the bearing plate.

[0013] The present invention discloses a suspended inclined conversion layer ceiling structure for a large space steel truss. Further, the mounting component is provided with a slot, the top surface of the slot is formed with a mounting keel, the mounting keel is connected to the adapter by bolts; the bottom surface of the slot is provided with an L-shaped hook plate, the L-shaped hook plate hooks onto the bottom surface of the bearing plate.

[0014] The present invention discloses a construction method, comprising the following steps: S1: Based on the design drawings, create a 3D model of the main steel truss, transfer layer, electromechanical pipelines, and ceiling structure; scan the site structure using a 3D scanner to form a construction model; merge the construction model and the 3D model, perform collision detection, and optimize the transfer layer node design based on the collision detection results; form the final model; and code each member. S2: The clamps, main keel, and secondary keel are processed at the processing plant according to the code; S3: Lay out the three-dimensional coordinates of the clamp, mark the positioning point, hoist the clamp, install the clamp to the positioning point of the lower chord, and verify the installation position of the clamp. Fix the position of the clamp with tie rods. S4: Hoist the main keel, connect the main keel to the clamp, and connect the diagonal tie rod between the main keel and the upper structure of the clamp; hoist the secondary keel, position the secondary keel, and install the secondary keel to the top surface of the main keel; S5: Install hangers on the secondary keel to install the ceiling structure.

[0015] The construction method of the present invention further includes the following specific steps for installing the ceiling structure: a transition piece is fitted onto the hanger rod and the position of the transition piece is fixed by a nut; the transition piece is connected and fixed to the installation piece; the ceiling panel is hoisted, one end of the ceiling panel is inserted into the slot of the installation piece, and the other end is connected to the hanger rod at the corresponding position through a first angle bracket and a second angle bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This application ensures the rigidity of the transition layer and reduces the risk of downward deflection by setting the clamps upward and connecting the diagonal tie rods between the upward structure and the main keel; at the same time, it changes the installation method of the secondary keel to further ensure the structural rigidity of the transition layer; and at the same time, it designs a corresponding ceiling structure that can meet the release of deformation in all directions of the ceiling panel, ensuring the functionality and safety of the ceiling panel. The bolt assembly and adjustable connection facilitate deviation correction and subsequent maintenance, significantly improve positioning accuracy, and reduce the amount of high-altitude welding on site. This application utilizes BIM-based multidisciplinary 3D collaborative design to achieve collision pre-detection and create 3D handover videos to ensure the installation accuracy of the ceiling structure. Through factory prefabrication and bolt assembly with adjustable connections, deviation correction and subsequent maintenance are facilitated, positioning accuracy is significantly improved, and the amount of on-site high-altitude welding is reduced.

[0017] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the clamp installation structure of the present invention; Figure 3 for Figure 1 Enlarged diagram of part A in the middle; Figure 4 This is a schematic diagram of the three-dimensional structure for mounting the conversion layer of the present invention.

[0019] Figure label: 1. Clamping rod; 1.1. Vertical member; 1.2. First member; 1.3. Second member; 1.4. Tie rod; 1.5. First ear plate; 1.6. Second ear plate; 2. Main keel; 2.1. Horizontal keel; 2.2. Longitudinal keel; 3. Secondary keel; 4. Diagonal tie rod; 5. Ceiling structure; 5.1. Ceiling panel; 5.2. First angle bracket; 5.2.1. Arc hole; 5.3. Hanging keel; 5.3.1. Base keel; 5.3.2. L-shaped keel; 5.3.3. Bearing plate; 5.4. Adapter; 5.5. Installation parts; 5.5.1. Slot; 5.5.2. Installation keel; 5.5.3. L-shaped hook plate; 5.6. Second angle bracket; 6. Lower chord; 7. Hanging rod. Detailed Implementation

[0020] like Figures 1-4 As shown, this invention discloses a suspended ceiling structure and construction method for a large-space steel truss top-mounted inclined-stayed transfer layer. The structure includes a main steel truss, clamps 1, main keel 2, secondary keel 3, inclined stays 4, and a ceiling structure 5. The main steel truss is the main structure. Multiple clamps 1 are installed on the lower chord 6 of the main steel truss. The clamps 1 are generally U-shaped or Π-shaped structures, and include two parallel vertical members 1.1, a first member 1.2 fixedly connected between the two vertical members 1.1 and connected to the upper end of the vertical members 1.1, and... A second member 1.3 is connected between two vertical members 1.1 and located below the first member 1.2. The clamp 1 forms an upward structure above the second member 1.3 and a clamping space for passing through the lower chord in the area below the second member 1.3. The two vertical members 1.1 are clamped on the lower chord 6, and the second member 1.3 is supported on the top surface of the lower chord 6. A tie rod 1.4 is fastened between the two vertical members 1.1 at the bottom surface of the lower chord 6, and the clamp 1 is fixed to the lower chord 6 by the tie rod 1.4.

[0021] Specifically, the vertical member 1.1 includes two parallel channel steels, which are connected as a whole by connecting members. In this embodiment, the first member 1.2 and the second member 1.3 are both connected between the two channel steels, thereby connecting the two vertical members 1.1. The spacing between the two channel steels is the same as the size of the main keel 2, and the main keel 2 passes through the two channel steels and is fixedly connected to the channel steels by bolts.

[0022] The main keel 2 includes a horizontal keel 2.1 and a vertical keel 2.2 connected between the horizontal keels 2.1. The horizontal keels 2.1 and the vertical keels 2.2 are perpendicular to each other to form a keel frame. The horizontal keels 2.1 and the vertical keels 2.2 are connected and fixed by angle brackets. The horizontal keel 2.1 passes between two channel steels and is fixedly connected to the channel steels by bolts.

[0023] A first ear plate 1.5 connects the two channel steels. A second ear plate 1.6 is provided on the top surface of the horizontal keel 2.1 at 1 / 3 of its length. Diagonal tie rods 4 are symmetrically arranged on both sides of the clamp 1. One end of the diagonal tie rod 4 is connected to the first ear plate 1.5, and the other end is connected to the second ear plate 1.6. The connection method in this embodiment is nut locking. By extending the upper part of the clamp 1 to form an upward structure, the diagonal tie rod 4 is connected between the upward structure and the main keel 2. The diagonal tie rod 4 ensures the rigidity of the steel frame transfer layer and avoids downward deflection deformation. At the same time, it solves the problem of small clearance between the transfer layer and the steel truss, which makes construction impossible.

[0024] Multiple secondary keels 3 are provided and located on top of the main keel 2. The secondary keels 3 and the main keel 2 are connected and fixed by U-shaped clamps. Specifically, a connecting plate is fitted onto the top surface of the U-shaped clamp, and then fixed with nuts. The ceiling structure 5 is connected to the secondary keels 3 via hangers 7. This application changes the existing installation method of the secondary keels 3 by placing them on top of the main keel 2, further eliminating the risk of deflection of the transition layer.

[0025] The ceiling structure 5 includes a ceiling panel 5.1, an L-shaped corner bracket 5.2, a hanging keel 5.3, a connector 5.4, and an installation component 5.5. In this embodiment, the ceiling panel 5.1 is an aluminum alloy honeycomb composite perforated panel. The ceiling panel 5.1 is inclined along its length, and adjacent ceiling panels 5.1 are arranged in a stepped manner. A first corner bracket 5.2 is fixed to one end of the ceiling panel 5.1 along its length. The first corner bracket 5.2 has an arc-shaped hole 5.2.1. A second corner bracket 5.6 is fixed to the hanger 7 by bolts. The second corner bracket 5.6 has a round hole. The first corner bracket 5.2 and the second corner bracket 5.6 are connected by bolts passing through the arc-shaped hole 5.2.1 and the round hole. At the same time, the bolts can be adjusted within the arc-shaped hole 5.2.1, thereby facilitating the adjustment of the installation position of the ceiling panel 5.1 and ensuring the installation accuracy of the ceiling panel 5.1. The hanger 7 passes through the secondary keel 3 and is locked by nuts located on the upper and lower sides of the secondary keel 3; the other end of the ceiling panel 5.1 is inserted into the slot 5.5.1 on the mounting piece 5.5, realizing the method of inserting one end of the ceiling panel 5.1 and fixing the other end. The upper end of the mounting piece 5.5 is connected to the hanger 5.1 through the adapter 5.4, and the lower end hooks onto the hanging keel 5.3. The hanging keel 5.3 is fixedly installed on the ceiling panel 5.1. By inserting one end of the ceiling panel 5.1 and fixing the other end, and hooking the adjacent ceiling panels 5.1 together, the horizontal and vertical deformation of the ceiling panel 5.1 is released, which meets the installation requirements of the large-span ceiling structure 5 and avoids deformation damage in the later stage.

[0026] The hanging keel 5.3 includes a base keel 5.3.1 fixedly installed in the ceiling panel 5.1 along the width direction of the ceiling panel 5.1. The base keel 5.3.1 has an installation groove with a top opening formed on its upper part along its length direction. The installation groove is a dovetail groove. An L-shaped keel 5.3.2 is provided along the width direction of the ceiling panel 5.1. The L-shaped keel 5.3.2 is connected and fixed to the base keel 5.3.1 by bolts provided in the installation groove. The upper end of the L-shaped keel 5.3.2 is bent inward to form a bearing plate 5.3.3. The lower end of the mounting piece 5.5 hooks onto the bearing plate 5.3.3.

[0027] Mounting component 5.5 is provided with a slot 5.5.1. The top surface of the slot 5.5.1 is formed with a mounting keel 5.5.2 along the width direction of the mounting component 5.5. The mounting keel 5.5.2 is hollow inside and has a mounting groove with a top opening inside. One end of the adapter 5.4 is connected and fixed to the mounting component 5.5 through a bolt provided in the mounting groove. The bottom surface of the slot 5.5.1 is provided with an L-shaped hook plate 5.5.3. The L-shaped hook plate 5.5.3 hooks onto the bottom surface of the bearing plate 5.3.3 to connect adjacent ceiling panels 5.1. Through the above design, the deformation of the ceiling panel 5.1 in all directions can be released, ensuring the functionality and safety of the ceiling panel 5.1.

[0028] The adapter 5.4 is Z-shaped, with threads on the hanger rod. One end of the adapter 5.4 is fitted onto the hanger rod and locked with a nut, while the other end is fixedly connected to the mounting keel 5.5.2 with bolts. This configuration allows adjustment of the installation position and tilt angle of the ceiling panel 5.1 by adjusting the position of the adapter 5.4, ensuring the installation accuracy of the ceiling panel 5.1.

[0029] This application ensures the rigidity of the transition layer and reduces the risk of downward deflection by setting the clamp 1 upward and connecting the diagonal tie rod 4 between the upward structure and the main keel 2; at the same time, it changes the installation method of the secondary keel 3 to further ensure the structural rigidity of the transition layer; and at the same time, it designs a corresponding ceiling structure 5 to meet the release of deformation in all directions of the ceiling panel 5.1, ensuring the functionality and safety of the ceiling panel 5.1.

[0030] The construction method includes the following steps: S1: Using Revit software, a 3D model of the main steel truss, transfer layer steel frame, electromechanical pipelines and ceiling structure is created based on the design drawings. The coordinate reference is unified to achieve 1:1 digital restoration. The transfer layer steel frame is a skeleton system formed by clamps 1 and main and secondary keels 3.

[0031] The site structure was scanned using a 3D scanner to create a construction model. The construction model and the 3D model were then merged in Navisworks software, and hard collision and gap collision detection were performed. Based on the collision detection results, the positions of the collision point transition layer components were adjusted, the node design of the transition layer was optimized, the collision problem was solved, and the final model was formed.

[0032] Adjust the size of clamp 1 to be 20mm larger than the width of the main steel truss, arrange the main keel 2 at a spacing of less than or equal to 5000mm, arrange the secondary keel 3 at 1200mm, and then code each member.

[0033] S2: Process clamp 1, main keel 2, and secondary keel 3 at the processing plant according to the code; simulate the installation process using Navisworks and create a 3D handover video.

[0034] S3: Divide the entire ceiling structure 5 into multiple zones, and carry out construction in multiple zones simultaneously, such as measuring and positioning zone A, installing clamps 1 in zone B, hoisting the main keel 2 in zone C, and hanging the secondary keel 3 in zone D.

[0035] S4: Lay out the three-dimensional coordinates of clamp 1 using a total station, mark the positioning point, install a manual hoist on the main steel truss, use an aerial work platform to lift the workers, hoist clamp 1, install clamp 1 to the positioning point of the lower chord, and verify the installation position of clamp 1. If the position is accurate, fix the position of clamp 1 with tie rod 1.4. Otherwise, adjust clamp 1 to the precise position and fix the position of clamp 1 with tie rod 1.4.

[0036] S5: The main keel 2 is hoisted using a manual hoist. First, the horizontal keel 2.1 is connected to the clamp 1, and the diagonal tie rod 4 between the clamp 1 and the horizontal keel 2.1 is connected. Then, the longitudinal keel 2.2 is connected between the horizontal keels 2.1 to form the main keel 2. The installation of the main keel 2 is carried out gradually from the inside to the outside.

[0037] Hoist the secondary keel 3, position the secondary keel 3, and install the secondary keel 3 onto the top surface of the main keel 2 using U-shaped clamps.

[0038] S6: Install hanger rods 7 on secondary keel 3, fit adapter 5.4 onto hanger rod 7, and fix the position of adapter 5.4 with nuts. Connect and fix adapter 5.4 to mounting piece 5.5. Hoist ceiling panel 5.1, insert one end of ceiling panel 5.1 into the slot 5.5.1 of mounting piece 5.5, and connect the other end to the hanger rod at the corresponding position through first and second angle brackets. The hanger rod is inserted into the second angle bracket and locked with nuts. Hook mounting piece 5.5 onto the hanging keel 5.3 on ceiling panel 5.1. Adjust the height of the insertion end of ceiling panel 5.1 by adjusting the position of adapter 5.4, and adjust the height of the fixed end of ceiling panel 5.1 by adjusting the length of the hanger rod inserted into the second angle bracket to ensure the installation accuracy of ceiling panel 5.1. Continue in this manner to install subsequent ceiling panels 5.1.

[0039] This application utilizes BIM-based multidisciplinary 3D collaborative design to achieve collision pre-detection and create 3D handover videos to ensure the installation accuracy of the ceiling structure 5. Through factory prefabrication and bolt assembly with adjustable connections, deviation correction and subsequent maintenance are facilitated, positioning accuracy is significantly improved, and the amount of on-site high-altitude welding is reduced.

[0040] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A suspended, inclined-stayed transfer layer ceiling structure with a large-space steel truss, characterized in that, include: Main steel truss; A clamp (1) is installed on the lower chord (6) of the main steel truss, and the clamp (1) extends upward to the top of the lower chord (6) to form an upward cantilever structure; The main keel (2) is located below the main steel truss and connected to the clamp (1); Secondary keel (3) is installed on the top surface of the main keel (2); The diagonal tie rod (4) is symmetrically arranged on both sides of the clamp (1), with one end connected to the upper cantilever structure of the clamp (1) and the other end connected to the main keel (2); The ceiling structure (5) is connected to the secondary keel (3) via a hanger (7).

2. The suspended ceiling structure of a large-space steel truss with inclined cable-stayed transition layer according to claim 1, characterized in that, The clamp (1) includes two vertical rods (1.1), a first rod (1.2) connected to the upper end of the two vertical rods (1.1), and a second rod (1.3) connected between the two vertical rods (1.1) and located below the first rod (1.2). The clamp (1) forms an upward structure above the second rod (1.3) and forms a clamping space for passing through the lower chord (6) below the second rod (1.3). The two vertical rods (1.1) are clamped on the lower chord (6), and the second rod (1.3) is supported on the top surface of the lower chord (6). A tie rod (1.4) is connected between the two vertical rods (1.1) at the bottom surface of the lower chord (6).

3. The suspended ceiling structure of a large-space steel truss with inclined cable-stayed transition layer according to claim 2, characterized in that, The vertical member (1.1) includes two parallel channel steels, which are connected as a whole by connecting members. The main keel (2) passes between the two channel steels and is connected to the channel steels by bolts.

4. The suspended ceiling structure of a large-space steel truss with inclined cable-stayed transition layer according to claim 3, characterized in that, A first ear plate (1.5) is connected between the two channel steels, and a second ear plate (1.6) is connected to the main keel (2). One end of the diagonal tie rod (4) is connected to the first ear plate (1.5), and the other end is connected to the second ear plate (1.6).

5. The suspended ceiling structure of a large-space steel truss with inclined cable-stayed transition layer according to claim 1, characterized in that, The main keel (2) includes a horizontal keel (2.1) and a vertical keel (2.2) connected between the horizontal keels (2.1). The horizontal keels (2.1) and the vertical keels (2.2) are perpendicular to each other to form a keel frame. The horizontal keel (2.1) is connected to the clamp (1).

6. The suspended ceiling structure of a large-space steel truss with inclined cable-stayed transition layer according to claim 1, characterized in that, The suspended ceiling structure (5) includes a ceiling panel (5.1), a first angle bracket (5.2), a hanging keel (5.3), a transition piece (5.4), and an installation piece (5.5). Adjacent ceiling panels (5.1) are arranged in a stepped manner. The first angle bracket (5.2) is fixedly installed on the surface of one end of the ceiling panel (5.1) along its length. A second angle bracket (5.6) is installed on the hanger rod (7). The first angle bracket (5.2) is provided with an arc-shaped hole (5.2.1). The second corner bracket (5.6) has a round hole, and the first corner bracket (5.2) and the second corner bracket (5.6) are connected by bolts; the other end of the ceiling plate (5.1) is inserted into the slot (5.5.1) on the mounting part (5.5), the upper end of the mounting part (5.5) is connected to the hanger (7) through the adapter (5.4), and the lower end is hooked on the hanging keel (5.3); the hanging keel (5.3) is set on the ceiling plate (5.1).

7. A suspended, inclined-stayed transfer layer ceiling structure for a large-space steel truss as described in claim 6, characterized in that, The hanging keel (5.3) includes a base keel (5.3.1) fixedly installed on the ceiling panel (5.1) along the width direction of the ceiling panel (5.1) and an L-shaped keel (5.3.2) fixedly installed on the base keel (5.3.1) along the width direction of the ceiling panel (5.1). The upper end of the L-shaped keel (5.3.2) is bent inward to form a bearing plate (5.3.3), and the lower end of the mounting component (5.5) hooks onto the bearing plate (5.3.3).

8. A suspended, inclined-stayed transfer layer ceiling structure for a large-space steel truss as described in claim 7, characterized in that, The mounting component (5.5) is provided with a slot (5.5.1), and the top surface of the slot (5.5.1) is formed with a mounting keel (5.5.2). The mounting keel (5.5.2) is connected to the adapter (5.4) by bolts. The bottom surface of the slot (5.5.1) is provided with an L-shaped hook plate (5.5.3), and the L-shaped hook plate (5.5.3) hooks onto the bottom surface of the bearing plate (5.3.3).

9. A method for constructing a suspended, inclined-stayed transfer layer ceiling structure (5) on a large-space steel truss as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Based on the design drawings, establish a three-dimensional model of the main steel truss, transfer layer, electromechanical pipelines and ceiling structure (5); The site structure is scanned using a 3D scanner to create a construction model. The construction model and the 3D model are then merged for collision detection. Based on the collision detection results, the design of the transition layer nodes is optimized to create the final model. Each member is then coded. S2: The clamps (1), main keel (2), and secondary keel (3) are processed at the processing plant according to the codes; S3: Lay out the three-dimensional coordinates of the clamp (1), mark the positioning point, hoist the clamp (1), install the clamp (1) to the positioning point of the lower chord (6), and check the installation position of the clamp (1). Fix the position of the clamp (1) by using the tie rod (1.4). S4: Hoist the main keel (2), connect the main keel (2) to the clamp (1), and connect the diagonal tie rod (4) between the cantilever structure of the main keel (2) and the clamp (1); hoist the secondary keel (3), position the secondary keel (3), and install the secondary keel (3) onto the top surface of the main keel (2); S5: Install hangers (7) on the secondary keel (3) to install the ceiling structure (5).

10. The construction method according to claim 9, characterized in that, The specific steps for installing the ceiling structure (5) are as follows: install the adapter (5.4) on the hanger rod and fix the position of the adapter (5.4) with the nut, connect and fix the adapter (5.4) with the mounting part (5.5), hoist the ceiling panel (5.1), insert one end of the ceiling panel (5.1) into the slot (5.5.1) of the mounting part (5.5), and connect the other end to the hanger rod (7) at the corresponding position through the first angle bracket (5.2) and the second angle bracket (5.6), and hook the mounting part (5.5) onto the hanging keel (5.3) on the ceiling panel (5.1).

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