Large-span umbrella-shaped truss hyperbolic ceiling construction modularized self-adaptive operation platform

Abstract

The invention discloses a large-span umbrella-shaped truss hyperbolic ceiling construction modularized self-adaptive operation platform which comprises a load-bearing main truss structure, a secondary beam grid structure, an adjustable platform plate and a three-dimensional adjustable hanging structure. Two ends of the column are rigidly connected with a structural column through a column top hoop assembly; the secondary beam grid structure is installed on the load-bearing main truss structure, and the adjustable platform plate is laid on the secondary beam grid structure. The construction method has the beneficial effects that loads are directly transmitted to a main body steel structure through a column top hoop and a hanging structure, accurate positioning of an installation working face is achieved, a platform is erected and formed in the air at a time, a large-area continuous working face is provided, and all types of work can be constructed in a partitioned and synchronous mode; material transportation is greatly facilitated through the openable platform plate, and the construction period is shortened; the platform can be repeatedly used for similar projects, the amortization cost is low, no support is arranged below the platform, and cross operation of other procedures such as ground engineering and equipment installation is not affected.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for erecting a modular adaptive operation platform for the construction of a large-span umbrella truss hyperbolic ceiling. Background Technology

[0002] Modern large-scale public buildings, such as airport terminals, stadiums, and convention centers, generally adopt large-span steel structure systems, featuring complex roof designs and spacious interiors. To achieve a beautiful interior visual effect, their ceilings are often designed as hyperboloids, such as the hyperboloid aluminum panel ceiling used in the Jiaxing Airport terminal. This ceiling system is supported by an umbrella-shaped tubular truss structure with a column spacing of 27 meters.

[0003] The construction of this type of suspended ceiling faces significant challenges: 1. The large span, 27-meter column spacing and tens of meters of clear height make the traditional full-span scaffolding solution require huge amounts of materials, have a long erection period, poor economic efficiency, and seriously affect the cross-operation of other processes on the ground.

[0004] 2. The complex shape of the hyperbolic ceiling means that the spatial coordinates of each installation point are different, requiring the operating platform to provide a flexible and precise working surface. Traditional scaffolding is difficult to adapt to complex curved surface changes.

[0005] 3. Due to its unique structure, the umbrella-shaped tubular truss lacks dense vertical support points beneath it, making it impossible to provide conventional support conditions for the operating platform. The platform load must be effectively transferred to the main structure (tubular truss and structural columns).

[0006] 4. High safety requirements: Working at heights, with other construction workers and equipment often below, places extremely high demands on the stability and safety of the operating platform.

[0007] Currently, although there are alternative solutions such as sliding platforms and aerial work platforms, sliding platforms have high requirements for track foundations and are not suitable for umbrella-shaped structures; aerial work platforms have limited operating range, low efficiency, and cannot form a continuous working surface, making it difficult to guarantee the installation accuracy and overall flatness of the hyperbolic slabs.

[0008] Therefore, it is necessary to propose a method for constructing a modular adaptive operation platform for large-span umbrella truss hyperbolic ceilings to address the above issues. Summary of the Invention

[0009] In view of the shortcomings of the prior art, the purpose of this invention is to provide a method for constructing a modular adaptive operation platform for large-span umbrella truss hyperbolic ceiling, so as to solve the above problems.

[0010] A modular adaptive operation platform for the construction of a large-span umbrella-shaped truss hyperbolic ceiling includes a load-bearing main truss structure, a secondary beam grid structure, an adjustable platform plate, and a three-dimensional adjustable suspension structure. The load-bearing main truss structure spans between two adjacent structural columns, and its two ends are rigidly connected to the structural columns through column-top clamp components. The secondary beam grid structure is installed on the load-bearing main truss structure, and the adjustable platform plate is laid on the secondary beam grid structure. The column-top clamp components are connected to the top of the structural columns through several three-dimensional adjustable suspension structures at their middle positions.

[0011] Preferably, the load-bearing main truss structure comprises several parallel adjustable truss units; the adjustable truss unit is formed by connecting standard segments through flanges or pin sleeves, and its span can be adjusted by increasing or decreasing the number of standard segments to accommodate different columns.

[0012] Preferably, the adjustable platform is assembled from several steel mesh units with anti-slip textures. Two adjacent steel mesh units are fixed to the secondary beam grid structure by hinges or detachable pressure plates, which facilitates partial opening and provides holes for the transportation and installation of the ceiling materials below.

[0013] Preferably, the column top clamp assembly includes an arc-shaped clamp, high-strength tie bolts, and stiffening ribs. The arc-shaped clamp tightly hugs the structural column through several high-strength tie bolts, and the arc-shaped clamp is also connected to the structural column through stiffening ribs. The arc-shaped clamp matches the shape of the structural column.

[0014] Preferably, the three-dimensional adjustable suspension structure includes a first movable adjustment seat, a second movable adjustment seat, and a telescopic frame. Both ends of the telescopic frame are connected to the first movable adjustment seat and the second movable adjustment seat respectively via universal joints. The first movable adjustment seat is installed on the top of the structural column, and the second movable adjustment seat is installed on the arc-shaped clamp.

[0015] Preferably, the telescopic frame includes a telescopic cylinder and a telescopic rod, the telescopic rod being inserted into the telescopic cylinder and fitted with a spring.

[0016] Preferably, the first movable adjustment seat includes a first fixed seat and a first adjustment seat. The first fixed seat is provided with a transverse groove, and the first adjustment seat is connected to the first fixed seat by bolts and the transverse groove.

[0017] Preferably, the second movable adjustment seat includes a second fixed seat and a second adjustment seat. The second fixed seat is provided with a longitudinal groove, and the second adjustment seat is connected to the second fixed seat by bolts and a transverse groove.

[0018] Preferably, it also includes a safety protection structure, which includes detachable guardrails, safety nets, and safety ladders for going up and down.

[0019] A method for erecting a modular adaptive operation platform for the construction of a large-span umbrella truss hyperbolic ceiling, S1, measuring and setting out, marking the installation position of the column top clamp assembly on the structural column; S2. Install the column top clamp assembly using a tower crane or truck crane; S3. The adjustable truss unit is assembled on the ground and then hoisted into place. Both ends of the unit are fixed to the column top clamp assembly to form the load-bearing main truss structure. S4. Install a secondary beam grid structure on the load-bearing main truss structure; S5. Install a three-dimensional adjustable hanging structure. The first movable adjustment seat is installed on the top of the structural column, and the second movable adjustment seat is installed on the arc-shaped clamp. Both ends of the telescopic frame are connected to the first and second movable adjustment seats respectively through universal joints. S6. Level the entire operating platform by adjusting the three-dimensional adjustable suspension structure; S7. Lay adjustable platform panels and install safety protection structures; S8. After passing the acceptance test, it shall be put into use.

[0020] Compared with the prior art, the present invention has the following advantages: 1. Safe and reliable, the load is directly transferred to the main steel structure through the column top clamps and hanging structure, avoiding the dependence of traditional scaffolding on the ground, with good overall stability and strong anti-overturning ability.

[0021] 2. Highly adaptable, the modular truss can adapt to different column spacings; the three-dimensional adjustable suspension structure can perfectly adapt to the complex shape changes of hyperbolic ceilings, achieving precise positioning of the installation work surface.

[0022] 3. Highly efficient construction: The platform is erected in the air in one go, providing a large continuous working surface, allowing different trades to carry out construction in separate areas simultaneously; the openable platform panels greatly facilitate material transportation and shorten the construction period.

[0023] 4. It is economical, requiring no large amount of scaffolding materials, saving on rental and dismantling costs; the platform can be reused for similar projects, resulting in low amortization costs.

[0024] 5. High overall efficiency: The platform has no support underneath, so it does not affect the cross-operation of other processes such as ground engineering and equipment installation, thus improving the overall management efficiency of the project. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the load-bearing main truss of the present invention; Figure 3 This is a structural diagram of the adjustable platform board of the present invention; Figure 4 This is a three-dimensional adjustable hanging structure diagram of the present invention; Figure 5 and Figure 6 This is a structural diagram of the first movable adjustment seat of the present invention; Figure 7 and Figure 8 This is a structural diagram of the second movable adjustment seat of the present invention; Figure 9 This is a structural diagram of the telescopic frame of the present invention; Figure 10 This is a structural diagram of the column top clamp assembly of the present invention.

[0026] The attached diagram shows the following labels: 1. Load-bearing main truss structure; 2. Secondary beam network structure; 3. Adjustable platform plate; 4. Three-dimensional adjustable suspension structure; 5. Structural column; 6. Column top clamp assembly; 11. Adjustable truss unit; 31. Steel mesh unit; 32. Anti-slip texture; 41. First movable adjustment seat; 42. Second movable adjustment seat; 43. Telescopic frame; 44. Universal joint; 411. First fixed seat; 412. First adjustment seat; 413. Transverse groove; 421. Second fixed seat; 422. Second adjustment seat; 423. Longitudinal groove; 431. Telescopic cylinder; 432. Telescopic rod; 433. Spring; 61. Arc-shaped clamp; 62. High-strength tie bolt; 63. Stiffening rib; 7. Guardrail. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0031] like Figure 1 and combined Figures 2 to 10 As shown, a modular adaptive operation platform for the construction of a large-span umbrella-shaped truss hyperbolic ceiling includes a load-bearing main truss structure 1, a secondary beam grid structure 2, an adjustable platform plate 3, and a three-dimensional adjustable suspension structure 4. The load-bearing main truss structure 1 spans between two adjacent structural columns 5, and its two ends are rigidly connected to the structural columns 5 through column top clamp components 6. The secondary beam grid structure 2 is installed on the load-bearing main truss structure 1, and the adjustable platform plate 3 is laid on the secondary beam grid structure 2. The column top clamp components 6 are connected to the top of the structural columns 5 through several three-dimensional adjustable suspension structures 4 at the middle position.

[0032] Furthermore, the load-bearing main truss structure 1 comprises several parallel adjustable truss units 11; the adjustable truss unit 11 is formed by connecting standard segments through flanges or pin sleeves, and its span can be adjusted by increasing or decreasing the number of standard segments to accommodate different structural columns 5.

[0033] Furthermore, the adjustable platform plate 3 is assembled from several steel mesh units 31 with anti-slip texture 32. Two adjacent steel mesh units 31 are fixed to the secondary beam grid structure 2 by hinges or detachable pressure plates, which facilitates partial opening and provides holes for the transportation and installation of the ceiling materials below.

[0034] Furthermore, the column top clamp assembly 6 includes an arc-shaped clamp 61, high-strength tie bolts 62, and stiffening ribs 63. The arc-shaped clamp 61 tightly hugs the structural column 5 through a number of high-strength tie bolts 62. The arc-shaped clamp 61 and the structural column 5 are also connected by stiffening ribs 63. The arc-shaped clamp 61 matches the shape of the structural column 5.

[0035] Furthermore, the three-dimensional adjustable hanging structure 4 includes a first movable adjustment seat 41, a second movable adjustment seat 42, and a telescopic frame 43. Both ends of the telescopic frame 43 are connected to the first movable adjustment seat 41 and the second movable adjustment seat 42 respectively through universal joints 44. The first movable adjustment seat 41 is installed on the top of the structural column 5, and the second movable adjustment seat 42 is installed on the arc-shaped clamp 61.

[0036] Furthermore, the telescopic frame 43 includes a telescopic cylinder 431 and a telescopic rod 432, the telescopic rod 432 being inserted into the telescopic cylinder 431, and the telescopic rod 432 being fitted with a spring 433.

[0037] Furthermore, the first movable adjustment seat 41 includes a first fixed seat 411 and a first adjustment seat 412. The first fixed seat 411 is provided with a transverse groove 413, and the first adjustment seat 412 is connected to the first fixed seat 411 by bolts and the transverse groove 413.

[0038] Furthermore, the second movable adjustment seat 42 includes a second fixed seat 421 and a second adjustment seat 422. The second fixed seat 421 is provided with a longitudinal groove 423, and the second adjustment seat 422 is connected to the second fixed seat 421 by bolts and the longitudinal groove 423.

[0039] Furthermore, it also includes a safety protection structure, which includes a detachable guardrail 7, a safety net, and a safety ladder for going up and down.

[0040] A method for erecting a modular adaptive operating platform for a large-span umbrella-shaped truss hyperbolic ceiling construction: S1. Measure and lay out the platform, marking the installation position of the column-top clamp assembly 6 on the structural column 5; S2. Install the column-top clamp assembly 6 using a tower crane or truck crane; S3. Assemble the adjustable truss unit 11 on the ground, then hoist it into place, fixing both ends to the column-top clamp assembly 6 to form the load-bearing main truss structure 1; S4. Install the secondary beam grid structure 2 on the load-bearing main truss structure 1; S5. Install the three-dimensional adjustable hanging structure 4, with the first movable adjustment seat 41 installed on the top of the structural column 5 and the second movable adjustment seat 42 installed on the arc-shaped clamp plate 61; both ends of the telescopic frame 43 are connected to the first movable adjustment seat 41 and the second movable adjustment seat 42 respectively via universal joints 44; S6. Level the entire operating platform by adjusting the three-dimensional adjustable hanging structure 4; S7. Lay the adjustable platform plate 3 and install the safety protection structure; S8. After acceptance, put it into use.

[0041] Compared with the prior art, the present invention has the following advantages: It is safe and reliable. The load is directly transferred to the main steel structure through the column top clamp assembly 6 and the three-dimensional adjustable suspension structure 4, avoiding the dependence of traditional scaffolding on the ground. It has good overall stability and strong anti-overturning ability.

[0042] Highly adaptable, the modular adjustable truss unit 11 can adapt to different column spacings; the three-dimensional adjustable hanging structure 4 can perfectly adapt to the complex shape changes of hyperbolic ceilings and achieve precise positioning of the installation work surface.

[0043] The construction is highly efficient, with the platform erected in the air in one go, providing a large continuous working surface, allowing different trades to carry out construction in separate areas simultaneously; the openable and adjustable platform panel 3 greatly facilitates material transportation and shortens the construction period.

[0044] It is economical, requiring no large amount of scaffolding materials, saving on rental and dismantling costs; the platform can be reused for similar projects, resulting in low amortization costs.

[0045] With high overall benefits, the platform has no support underneath, so it does not affect the cross-operation of other processes such as ground engineering and equipment installation, thus improving the overall management efficiency of the project.

[0046] The main load-bearing truss structure 1, serving as the core load-bearing skeleton of the platform, consists of multiple adjustable truss units 11. These adjustable truss units 11 are erected in parallel between two adjacent structural columns 5, with both ends securely connected to the top of the structural columns 5 via high-strength column top clamp assemblies 6. The adjustable truss units 11 adopt a modular design, consisting of standard segments connected by flanges, and can be flexibly combined according to 27m or other different column spacings to achieve "one platform, multiple uses".

[0047] Secondary beam grid structure 2 is formed by laying secondary beams on the load-bearing main truss structure 1 to form a dense rib grid, which enhances the overall stability of the platform and provides support for the adjustable platform plate 3.

[0048] The adjustable platform panel 3 structure uses steel mesh units 31 with anti-slip texture 32 laid on the secondary beam mesh structure 2. The steel mesh units 31 can be quickly opened or disassembled in parts, facilitating the hoisting of materials such as aluminum plates from below the platform and greatly improving work efficiency.

[0049] The three-dimensional adjustable suspension structure 4 transfers the main load of the operating platform to the stable lower chord node of the umbrella-shaped truss through the suspension rods.

[0050] In addition, the platform is equipped with a complete safety protection structure, such as guardrails and safety nets.

[0051] Example 1: Taking the Jiaxing Airport terminal building project as an example, its column spacing is 27 meters, and the lower chord elevation of the umbrella-shaped truss is about 20 meters, requiring the installation of a double-curved aluminum panel ceiling.

[0052] The design was further refined, and based on the 27-meter column spacing, each adjustable truss unit 11 was designed to consist of three 9-meter-long standard segments connected by high-strength flanges. The column top clamp assembly 6 was customized according to the cross-sectional dimensions (e.g., circular or rectangular) of the structural column 5.

[0053] During construction, follow these steps: All standard components (11 adjustable truss units, 6 column top clamp components, 4 three-dimensional adjustable suspension structures, etc.) are prefabricated in the factory.

[0054] At the site, a truck crane was used to first install the column top clamp assembly 6.

[0055] On the ground, the three adjustable truss units 11 sections are assembled into a complete 27-meter truss unit, and then the whole unit is hoisted and its two ends are steadily placed on the column top clamp components 6 on both sides and fixed with bolts to form the load-bearing main truss structure 1.

[0056] Secondary beam grid structure 2 is installed on the load-bearing main truss structure 1.

[0057] Construction workers climbed onto the platform frame using temporary ladders and installed the three-dimensional adjustable suspension structure 4. First, the universal joint 44 was fixed to the pre-set lower chord node of the tubular truss using U-shaped clamps. Then, the telescopic rod 432 (vertical suspension rod) was connected. Finally, it was connected to the upper chord of the load-bearing main truss structure 1 via the first and second movable adjustment seats 41 and 42 (horizontal adjustment devices). The entire platform was leveled using a laser level by adjusting all suspension points.

[0058] A steel mesh unit 31 with anti-slip texture 32 is laid as an adjustable platform board 3, and guardrails 7 and safety nets are installed.

[0059] During construction, workers can perform tasks such as measurement, keel installation, aluminum panel handling, and fixing on a flat and stable platform. The curvature of the hyperboloid ceiling can be easily accommodated by fine-tuning the first and second adjustable seats 41 and 42. When large panels need to be hoisted from below in a certain area, simply open the local steel mesh unit 31.

[0060] This invention is not only applicable to the Jiaxing Airport project, but can also be extended to the construction of all public buildings with large spans and complex ceiling designs.

[0061] Example 2: Hangzhou West Railway Station Waiting Hall Project As a core area of ​​a large transportation hub, the waiting hall of Hangzhou West Railway Station features a column spacing of 30 meters and a lower chord elevation of 24 meters for its umbrella-shaped tubular truss. The ceiling utilizes a hyperbolic GRG (glass fiber reinforced gypsum board) design with complex curvature variations. Construction was required to avoid disrupting passenger flow and pipeline installation on the ground level. The operating platform of this invention was used for construction, and the specific implementation is as follows: I. Detailed Design Based on the construction requirements of the waiting hall's extra-large column spacing of 30 meters and the double-curved GRG ceiling, a targeted design was carried out: The adjustable truss unit 11 adopts a modular standard segment design. Each truss consists of three 10-meter-long high-strength steel truss segments. The segments are connected by double flanges and high-strength bolts to ensure that the strength at the joints matches the overall rigidity to meet the load-bearing requirements of a 30-meter span. The column top clamp assembly 6 is customized for the rectangular cross-section structural column 5 (cross-section size 800mm×800mm) in the waiting hall. The arc-shaped clamp 61 is optimized to adapt to the polygonal arc structure of the rectangular column. The stiffening ribs 63 are arranged in a cross shape to enhance the fit between the clamp and the structural column 5 and the anti-slip ability. The length of the telescopic frame 43 of the three-dimensional adjustable suspension structure 4 is adjusted to 2.2 meters according to the vertical distance between the lower chord of the tubular truss and the platform. The spring 433 is made of high elastic modulus material to meet the load transfer requirements of GRG ceiling construction. The size of the steel mesh unit 31 of the adjustable platform plate 3 is optimized to 1.5m×1.2m, which increases the coverage area of ​​a single plate while making it easier to manually open and move large GRG components (single piece weight ≤300kg).

[0062] II. Construction Steps All standard components are prefabricated in the factory, including 11 adjustable truss units, 6 column top clamping assemblies (including arc-shaped clamps 61, high-strength tie bolts 62, and stiffening ribs 63), 4 three-dimensional adjustable hanging structures (including first movable adjustment seat 41, second movable adjustment seat 42, telescopic frame 43, and universal joint 44), and 31 steel mesh units, etc. Pre-assembly inspection is carried out before leaving the factory to ensure the accuracy of the components. On-site measurement and layout were carried out, and the installation elevation (500mm from the top of the column) and horizontal position of the column top clamp assembly 6 were accurately marked on the structural column 5 using a total station, with the error controlled within ±2mm; A 25-ton truck crane and an aerial work platform were used to install the column top clamp assembly 6 in batches. The high-strength tie bolts 62 were tightened symmetrically in stages to ensure that the arc-shaped clamp 61 was tightly fitted to the structural column 5. After tightening, the horizontal deviation of the clamp was tested to be ≤1mm / m. The adjustable truss unit 11 is assembled on the ground. A special assembly jig is used to ensure the straightness of the truss. After the assembly is completed, the weld is inspected for defects. After passing the inspection, the truss is hoisted as a whole using a 50-ton tower crane. The reserved connecting parts of the two ends of the truss to the column top clamp assembly 6 are fixed with high-strength bolts to form the load-bearing main truss structure 1. During the hoisting process, double-cable wind ropes are used to control the attitude of the truss to avoid collision with the installed components. Secondary beam grid structure 2 is laid on the load-bearing main truss structure 1 at intervals of 1.2 meters. The secondary beams are made of H-beams (H200×100×5.5×8) and are rigidly connected to the upper chord nodes of the main truss by bolts to form a closely ribbed support system. After installation, the flatness deviation of the grid is tested to be ≤3mm. Install the three-dimensional adjustable hanging structure 4: fix the first movable adjustment seat 41 to the pre-embedded steel plate at the top of the structural column 5 with expansion bolts, and weld the second movable adjustment seat 42 to the reserved support of the arc-shaped clamp 61; the telescopic cylinder 431 of the telescopic frame 43 is connected to the first movable adjustment seat 41 through a universal joint 44, and the telescopic rod 432 is connected to the second movable adjustment seat 42 through a universal joint 44, to ensure that the telescopic frame 43 can be adjusted at multiple angles with the hyperbolic curved surface; Using a laser level in conjunction with a digital inclinometer, the telescopic frame 43 is simultaneously fine-tuned by adjusting the transverse groove 413 of the first movable adjustment seat 41 and the longitudinal groove 423 of the second movable adjustment seat 42, so that the flatness error of the platform working surface is controlled within ±2mm / m and completely conforms to the design curvature of the GRG ceiling. Adjustable platform panels 3 are laid in the order of "from the middle to both sides". Steel mesh units 31 are fixed to the secondary beam mesh structure 2 by detachable pressure plates. Rubber strips are used to seal the joints of adjacent panels to prevent debris from falling. At the same time, guardrails 7 (1.2 meters high, with posts spaced 1.5 meters apart), double-layer safety nets (below and on the sides of the platform) and anti-slip safety ladders (attached to the side of the main truss) are installed. After construction is completed, a load test will be conducted (applying a uniformly distributed load of 2.5 kN / m). 2 After passing the anti-overturning test and safety protection acceptance, and all indicators are qualified, the installation of GRG ceiling keel, component hoisting and splicing operations are put into operation.

[0063] III. Application Effects Excellent adaptability: The 30-meter span adjustable truss unit 11 perfectly matches the column spacing of high-speed railway stations, and the three-dimensional adjustable hanging structure 4 accurately copes with the complex curved surface changes of the hyperbolic GRG ceiling. The positioning error of the working surface is ≤5mm, which meets the requirements of high-precision construction. Safe and efficient: With no supporting structure underneath, the platform ensures normal passenger passage and pipeline installation, achieving "aerial operations with unimpeded ground access"; the openable steel mesh unit 31 solves the problem of vertical transportation of large GRG components (maximum size 3m×2m), improving transportation efficiency by 40% compared to traditional methods; Significantly economical: It avoids the huge cost of erecting a 30-meter-high full-span scaffold, and the platform components can be reused for subsequent high-speed rail station supporting projects, reducing the amortization cost per project by 60% compared to traditional methods; Construction period optimization: The platform was erected in just 12 days (including assembly, hoisting and leveling), which is 8 days shorter than the planned construction period, leaving sufficient time for the subsequent GRG ceiling installation and ensuring that the project is completed on schedule.

[0064] This embodiment further verifies the applicability of the present invention in public buildings with ultra-large column spacing, complex hyperbolic ceilings, and high requirements for cross-operations. Its modular design and three-dimensional adjustment function can flexibly adapt to different types of large-span ceiling construction scenarios.

[0065] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A modular adaptive operation platform for the construction of a large-span umbrella-shaped truss hyperbolic ceiling, characterized in that: The utility model relates to a kind of large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform, including load-bearing main truss structure (1), secondary beam grid structure (2), adjustable platform plate (3) and three-dimensional adjustable hanging structure (4), the load-bearing main truss structure (1) is across between two adjacent structural columns (5), and its both ends are rigidly connected with structural column (5) by column top hoop assembly (6);The secondary beam grid structure (2) is installed on load-bearing main truss structure (1), the adjustable platform plate (3) is laid on secondary beam grid structure (2), and the middle position of column top hoop assembly (6) is connected with the top of structural column (5) by several three-dimensional adjustable hanging structures (4).

2. A large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform according to claim 1, characterized in that: The load-bearing main truss structure (1) includes several adjustable truss units (11) arranged in parallel.

3. A large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform according to claim 1, characterized in that: The adjustable platform plate (3) is assembled by several steel sheet mesh units (31) with anti-skid lines (32), and two adjacent steel sheet mesh units (31) are fixed on the secondary beam grid structure (2) by hinges or detachable pressing plates.

4. A large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform according to claim 1, characterized in that: The column top hoop assembly (6) includes an arc-shaped clamping plate (61), a pair of high-strength bolts (62) and a stiffened rib plate (63), the arc-shaped clamping plate (61) tightly holds the structural column (5) by several high-strength bolts (62), and the arc-shaped clamping plate (61) is further connected with the structural column (5) by the stiffened rib plate (63); the arc-shaped clamping plate (61) is matched with the shape of the structural column (5).

5. A large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform according to claim 1, characterized in that: The three-dimensional adjustable hanging structure (4) includes a first mobile adjusting seat (41), a second mobile adjusting seat (42) and a telescopic frame (43), the two ends of the telescopic frame (43) are connected with the first mobile adjusting seat (41) and the second mobile adjusting seat (42) respectively through universal joints (44), the first mobile adjusting seat (41) is installed on the top of the structural column (5), and the second mobile adjusting seat (42) is installed on the arc-shaped clamping plate (61).

6. A large-span umbrella-like truss hyperbolic ceiling construction modular adaptive operation platform according to claim 5, characterized in that: The telescopic frame (43) includes a telescopic cylinder (431) and a telescopic rod (432), the telescopic rod (432) is inserted into the telescopic cylinder (431), and the telescopic rod (432) is sleeved with a spring (433).

7. A large-span umbrella-like truss hyperbolic suspended ceiling construction modular adaptive operation platform according to claim 5, characterized in that: The first mobile adjusting seat (41) includes a first fixed seat (411) and a first adjusting seat (412), the first fixed seat (411) is provided with a transverse slot (413), and the first adjusting seat (412) is connected with the first fixed seat (411) through bolts and the transverse slot (413).

8. A large-span umbrella truss hyperboloidal suspended construction modular self-adapting operation platform according to claim 5, characterized in that: The second mobile adjusting seat (42) includes a second fixed seat (421) and a second adjusting seat (422), the second fixed seat (421) is provided with a longitudinal slot (423), and the second adjusting seat (422) is connected with the second fixed seat (421) through bolts and the longitudinal slot (423).

9. A large-span umbrella truss hyperboloidal suspended construction modular self-adapting operation platform according to claim 1, characterized in that: It also includes a safety protection structure, which includes a detachable edge protection fence (7), a safety net and an up-down safety ladder.

10. The erection method of the large-span umbrella truss hyperbolic ceiling construction modular adaptive operation platform according to any one of claims 1-9, characterized in that: S1, measuring and lofting, marking the installation position of the column top hoop assembly on the structural column; S2, install the column top hoop assembly by using a tower crane or a car hoist; S3, assemble the adjustable truss unit on the ground, then hoist it into place, fix its two ends with the column top hoop assembly, and form a load-bearing main truss structure; S4, install the secondary beam grid structure on the load-bearing main truss structure; S5, install the three-dimensional adjustable suspension structure, the first mobile adjusting seat is installed at the top of the structural column, and the second mobile adjusting seat is installed on the arc-shaped clamping plate; the two ends of the telescopic frame are connected with the first mobile adjusting seat and the second mobile adjusting seat through universal joints respectively; S6, adjust the three-dimensional adjustable suspension structure to level the entire operation platform; S7, lay the adjustable platform board and install the safety protection structure; S8, after acceptance, put into use.

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