UHPC-glass composite special-shaped skylight system and construction method thereof

Abstract

The invention discloses a UHPC-glass composite special-shaped skylight system and a construction method thereof, and relates to the technical field of decoration and composite curtain walls, and the UHPC-glass composite special-shaped skylight system comprises a space steel skeleton system, a UHPC hanging plate system, a glass panel system, a waterproof heat preservation system and a colorful lighting system. The technical problems that a traditional special-shaped skylight is low in construction precision, poor in waterproof performance, not high in installation efficiency and the like are effectively solved. The system is designed in an assembly mode, whole-process construction is guided through the BIM technology, factory prefabrication and on-site precise assembly of components are achieved, and the error is controlled within + / -2 mm. The space steel framework provides stable support, the UHPC hanging plate and the glass panel are reliably fixed through a special connecting system, and the structural safety and the water tightness of the skylight are ensured in cooperation with a multi-layer waterproof heat preservation structure.

Description

Technical Field

[0001] This invention relates to the field of decoration and composite curtain wall technology, and more specifically to the field of UHPC-glass composite irregular skylight system and its construction method. Background Technology

[0002] In modern architectural design, irregularly shaped skylights, with their unique spatial expression and light and shadow effects, have become an important component of public buildings such as airports, train stations, and art galleries. However, these skylights still face a series of technical challenges in actual construction and system integration: In terms of structural selection, traditional concrete materials are heavy and have low styling flexibility, making it difficult to achieve complex curved surfaces and lightweight construction; while metal roofing systems have the advantage of being lightweight, they are difficult to coordinate with glass skylights in terms of visual and textural aspects; secondly, in terms of node and joint treatment, irregularly shaped skylights often involve the intersection of multiple materials such as UHPC, glass, and metal, with complex connection nodes and many twists and turns, making waterproofing design difficult and becoming a common cause of leakage; in addition, in terms of construction precision control, due to the complex geometric characteristics of the component shapes, such as hyperbolic, twisted, and multi-directional turns, and the complicated installation process, it is often difficult to achieve high-precision positioning and fitting on site, which can easily lead to problems such as component misalignment and poor sealing, seriously affecting the final building quality and functionality. Traditional construction management based on two-dimensional drawings and rigid connection nodes are completely inadequate to meet the construction needs of this type of free-form building.

[0003] Therefore, how to achieve rapid, precise installation and reliable waterproofing of irregularly shaped skylight systems while ensuring structural safety and architectural expressiveness has become a key technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to address the technical problems of low construction precision, poor waterproofing performance, and low installation efficiency of traditional irregular-shaped skylights. This invention provides a UHPC-glass composite irregular-shaped skylight system and its construction method. This system has the advantages of high structural efficiency, flexible shape, reliable waterproofing, and aesthetic appeal, while its construction method ensures the precise realization of the design intent.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: This invention provides a UHPC-glass composite irregular skylight system, including a space steel frame system, a UHPC hanging panel system, a glass panel system, a waterproof and thermal insulation system, and a lighting system; The spatial steel frame system includes a spatial grid system, a post-installed embedded plate that is reliably anchored to the civil structure by mechanical anchor bolts, and a channel steel adapter that fixes the spatial grid system to the post-installed embedded plate; the channel steel adapter is used to precisely adjust the installation elevation and planar position of the frame and compensate for errors in civil construction. The spatial grid system includes a main keel and a secondary keel, both of which are hot-dip galvanized steel rectangular tubes connected by stainless steel bolts. The UHPC panel system includes UHPC panels and aluminum alloy brackets. Stainless steel back bolts are pre-embedded on the back of the UHPC panels. One end of the aluminum alloy bracket is connected to the back bolt, and the other end of the aluminum alloy bracket is connected to the hot-dip galvanized angle steel welded to the main keel by bolts. The UHPC panels are located on the side of the space steel frame system. The glass panel system includes an aluminum alloy frame and a glass panel embedded in the aluminum alloy frame. The aluminum alloy frame is fixed to the top of the space steel frame system by bolts. The connection between the aluminum alloy frame and the glass panel is provided with elastic pressure strips and sealing strips for fixing the two. An aluminum alloy guard is installed at the external corner where the aluminum alloy frame meets the UHPC mounting plate.

[0006] Specifically, the spatial steel frame system serves as the core load-bearing and supporting framework for the entire skylight. This system includes a rear-mounted embedded plate reliably anchored to the civil structure via mechanical anchors, effectively transferring the skylight load to the main body; channel steel adapters connected to the rear-mounted embedded plate to precisely adjust the installation elevation and planar position of the spatial grid system, compensating for errors in civil construction; and primary and secondary joists, which are hot-dip galvanized steel rectangular tubes connected by stainless steel bolts, forming a stable spatial grid system. The rigidity and stability of the spatial steel frame system provide a precise installation base and load-bearing support for the construction of UHPC cladding panels, glass panels, insulation, and waterproofing layers.

[0007] Furthermore, the UHPC mounting panels are factory-prefabricated ribbed thin-walled components. High-strength internal interfaces are formed by stainless steel back bolts embedded within the UHPC mounting panels. One end of the aluminum alloy hanger connects to the stainless steel back bolt, while the other end connects to hot-dip galvanized angle steel welded to the main keel via bolts. Four stainless steel back bolts are used, forming a "four-point support" mounting pattern. This connection method is a three-dimensional adjustable system, allowing for fine-tuning of the UHPC mounting panels during installation. This not only compensates for installation errors but also actively adapts to minute angular changes in irregularly shaped panels within space.

[0008] Furthermore, to achieve transparent lighting, the glass panel system uses custom-made glass panels. The aluminum alloy frame is bolted to the spatial steel frame, forming a continuous and precise frame for glass installation. Custom-cut tempered laminated glass is embedded in the aluminum alloy frame and secured with elastic strips and sealing strips, forming a stable support structure. Additionally, a special aluminum alloy edge protector is installed at the external corner where the glass panel meets the UHPC mounting plate. This component acts as a buffer, effectively absorbing the relative displacement and deformation caused by thermal expansion and contraction or wind loads between different materials (glass panel and UHPC mounting plate), preventing localized stress concentration or breakage of the glass due to rigid contact.

[0009] In one embodiment, the waterproof and thermal insulation system includes a main waterproof layer, a secondary waterproof layer, a drainage channel, and a thermal insulation layer. The main waterproof layer includes a TPO waterproof membrane layer laid on top of the spatial steel frame system. The TPO waterproof membrane layer forms a complete sealed waterproof layer at the joints by welding and overlaps with the roof waterproof system. The secondary waterproofing layer includes an alumina plate installed inside the UHPC siding, and works in conjunction with the drainage channels designed at the joints. The insulation layer consists of insulating rock wool filling the cavities of the space steel frame system and the cold bridge areas at the edges of the glass panels.

[0010] Specifically, the waterproofing and insulation system constructs a multi-layered, continuous, comprehensive protection system. The main waterproofing layer consists of TPO waterproof membrane laid on top of the spatial steel frame system. This membrane is welded at the joints to form a complete, sealed waterproof layer and reliably overlaps with the roof waterproofing system. For secondary waterproofing and drainage, anodized aluminum panels installed inside the UHPC siding serve as both a moisture barrier and an auxiliary waterproofing barrier, working in conjunction with drainage channels designed at the joints to form a "drainage-oriented, combined with prevention and drainage" waterproofing mechanism. The insulation layer consists of insulating rock wool filling the cavities of the steel frame and the cold bridge areas at the edges of the glass panels, effectively blocking heat transfer channels, preventing indoor condensation, and ensuring the overall thermal performance of the skylight.

[0011] In one embodiment, the lighting system includes an aluminum alloy light trough seamlessly embedded or integrated at the junction of the glass panel and the UHPC mounting plate, and a waterproof luminaire integrated inside the aluminum alloy light trough.

[0012] Specifically, the lighting system aims to achieve uniform and soft diffused light, creating an artistic lighting effect where the light source is not visible. Custom-designed aluminum alloy light troughs can be seamlessly embedded or integrated into specific parts of the skylight (such as the junction between the glass panel and the UHPC mounting plate), achieving a "hidden" installation. Waterproof light fixtures are integrated inside the light troughs, and the light emitted is reflected and diffused by the troughs, forming a uniform and soft light band on the decorative panel surface.

[0013] Another aspect of the present invention provides a construction method for a UHPC-glass composite irregular-shaped skylight system, for fabricating a UHPC-glass composite irregular-shaped skylight system, comprising the following steps: S1. Civil engineering structure review; S2, BIM model refinement and prefabrication of components in factories; S3. Installation of the rear-mounted embedded plate and repair of the waterproof layer; S4. Measurement and layout, and installation of the spatial steel frame; S5. Lightning protection construction; S6. Waterproofing and insulation layer construction; S7. Ground pre-assembly and installation benchmark calibration; S8. Segmented mounting and dynamic accuracy verification; S9. System sealing and final fixation; S10, Performance Testing.

[0014] In one implementation, the specific steps of the civil structure verification in step S1 are as follows: A comprehensive 3D laser scanning technique was employed to map the roof structure. During the scanning process, multiple scanning stations were deployed on the completed civil engineering roof structure to ensure full coverage without blind spots. A 3D laser scanner with an accuracy of at least ±2mm was used, with each station's scanning time controlled to 3-5 minutes depending on the site environment, simultaneously collecting coordinate data of on-site control points. Data processing and analysis involved importing the point cloud data from each station into processing software for registration, generating a complete 3D point cloud model of the roof (point cloud density set at at least 5mm × 5mm). The point cloud model was then compared and analyzed with the original BIM theoretical model, focusing on detecting deviations in roof flatness, structural elevation, and axis position. Areas exceeding allowable deviations were highlighted, and correction suggestions and construction adjustment plans were provided. 3D laser scanning technology allows for the rapid and accurate acquisition of actual on-site structural data, providing precise data for subsequent BIM model adjustments and component fabrication, ensuring the installation accuracy of the skylight system from the outset.

[0015] In one implementation, the specific steps of BIM model refinement and component prefabrication in step S2 are as follows: S21. Data integration and model adjustment: Fit the point cloud data generated by 3D laser scanning with the final design BIM model of the skylight, correct and refine the model, and ensure that the model is highly consistent with the actual structure on site, eliminating the deviation between theoretical design and site conditions from the source. S22. Model Analysis and Verification: Using the adjusted and accurate BIM model, comprehensive structural calculations and load simulations are performed to verify the safety and reliability of the system under extreme conditions such as wind load and snow load. At the same time, comprehensive collision detection is carried out to accurately identify and resolve interference problems between all components and between components and connectors in complex three-dimensional space, transforming abstract morphological problems into manageable data problems to ensure the feasibility of the design scheme. S23. Component Division and Data Generation: After analysis and verification, the skylight is divided into reasonable sections based on the BIM model; then, based directly on the verified model, the precise processing drawings, material lists and spatial positioning data of all UHPC panels, glass panels, steel frame members and connectors are generated. S24. Factory Prefabrication and Information Management: The above data files are transmitted to the collaborating factory for digital processing and prefabrication of all components; UHPC panels are cast using customized molds; glass panels are tempered, laminated, and subjected to possible hot bending treatments based on the data; steel components are precisely cut and drilled; at the same time, each component is assigned a unique code so that it can be traced in subsequent logistics, warehousing, and installation stages, realizing information management throughout the entire life cycle. S25. Center of gravity calculation and hoisting scheme simulation: Using the BIM model, each component is assigned precise material properties, and the software automatically calculates the center of gravity position of complex irregular components, providing a precise basis for the selection of special hoisting tools and the preparation of hoisting schemes in step eight.

[0016] In one implementation, in step S3, the post-installed embedded plate is installed on the roof structure according to the positioning points laid out from the BIM model. After completion, the original roof waterproofing layer damaged by construction is immediately systematically repaired. The specific steps for the installation of the post-installed embedded plate and the repair of the waterproofing layer are as follows: S31. Substrate treatment and sealing: Thoroughly clean the substrate around the embedded plate to ensure it is firm and flat; inject high-performance sealant (such as modified silane or polyurethane sealant) into the anchor bolt holes and the gaps between the embedded plate and the substrate to ensure full filling and form the first flexible sealing barrier. S32. Construction of the coating reinforcement layer: Taking the rear-mounted embedded plate as the center, extend outwards by an area of ​​not less than 250mm, and apply at least two coats of high-polymer elastic waterproof coating in a longitudinal and transverse manner to completely cover all edges and anchor bolts, forming a continuous and elastic coating reinforcement layer. S33, Integrated Waterproofing Membrane Layer: Select a high-quality waterproofing membrane (such as TPO waterproofing membrane) that is compatible with the original waterproofing layer, lay it to the buried plate area, and use hot air welding to make it seamlessly connected with the surrounding large-area waterproofing layer, reconstructing a complete, non-perforated overall waterproofing system. S34. Surveying and Setting Out and Spatial Steel Frame Installation: Using precision instruments such as total stations, the control axis, elevation benchmarks and key node positions of the skylights are accurately measured on site according to the BIM model coordinates. First, install the channel steel adapter and use its elongated holes for three-dimensional adjustment to accurately compensate for civil engineering errors. Then, install the main and secondary keels in sequence and connect them with stainless steel bolts to form the designed spatial grid system. During the installation process, measurement and monitoring must be carried out throughout to ensure that the overall shape, elevation and position of the frame meet the design accuracy requirements.

[0017] In one implementation, the lightning protection construction in step S5 is as follows: A spatial grid system is used as a natural down conductor, which is then welded to the building's main lightning protection system. 40×4mm hot-dip galvanized flat steel is welded at the nodes of the spatial grid system, with the other end reliably connected to the roof lightning protection strip. All welding points are double-sided welded, with a weld length of not less than 100mm. Anti-corrosion treatment is applied after welding. A grounding resistance tester is used to measure the grounding resistance value, ensuring it is not greater than 1Ω, and a test record is created. In step S6, the waterproofing and insulation layer construction is as follows: First, galvanized steel plate supports are installed at the bottom of the steel frame cavity of the spatial grid system and fixed to the steel frame with rivets. Then, thermal insulation rock wool is fully laid on the supports, ensuring that the laying is dense and the joints are staggered. Next, an alumina waterproof board is installed on the surface of the insulation layer, and the joints between the boards are sealed with weather-resistant sealant. Finally, TPO waterproof membrane is laid on the alumina board, and the joints of the membrane are hot-air welded. The edges of the membrane are turned up and wrapped at the parts that pass through the components to form a complete waterproof and thermal insulation system.

[0018] In one implementation, in step S7, the ground pre-assembly and installation reference calibration is as follows: A flat assembly platform is erected in the vicinity of the construction site. A rigid platform is erected and leveled, and the flatness of the platform is controlled within ±1mm / m.

[0019] S71. Pre-assembly Preparation and Implementation: Select the steel frame, UHPC mounting plate, glass panel and related connectors in the ground assembly area for pre-assembly. First, clean all component contact surfaces and check the processing accuracy, and prepare measuring equipment such as total station and laser level. Then, place the steel frame according to the design position and adjust it to the theoretical coordinate position. Install the UHPC mounting plate in sequence and fix it initially through the back bolt system. Next, install the glass panel and set the aluminum alloy edge protection. Finally, use a torque wrench to pre-tighten all connecting bolts to 50% of the design torque. S72. Precision Calibration and Benchmarking: After pre-assembly, the coordinates of each control point of the unit are measured using a total station. The obtained data is compared with the theoretical values ​​in the BIM model item by item. The overall installation error is strictly controlled within ±2mm by fine-tuning the position of the components. Subsequently, the installation boundary lines, hanging point center positioning lines, glass panel installation benchmark lines, and connector installation positions of each UHPC mounting plate are systematically calibrated on the calibrated steel frame using engraving lines or special marking parts, providing a precise physical benchmark for high-altitude segmented installation.

[0020] In one implementation, step S8 involves the following steps: block mounting and dynamic accuracy verification. Following the installation sequence optimized by the BIM model simulation, the UHPC mounting plates and glass panels were hoisted to their positions at high altitudes in sections. S81. For UHPC mounting panels: According to the pre-assembled lifting sequence, use special lifting tools to lift the UHPC mounting panels in sections to avoid damage to the panel edges; after positioning, immediately perform three-dimensional adjustment through the back bolt system: use the elongated holes of the hangers to achieve ±15mm plane position adjustment, use the adjusting bolts to achieve ±10mm elevation adjustment, and use the ball joint connectors to achieve ±3° angle fine adjustment; after completing the initial fixing, immediately conduct the first round of accuracy verification to lay the foundation for subsequent installation; S82. For glass panels: Install glass panels according to the principle of zoning and batching; first, embed the customized glass panel into the adjusted aluminum alloy frame, and use elastic pressure strips to achieve temporary fixation and maintain an adjustable state; at the same time, install special aluminum alloy edge protectors to ensure that the gap between them and the adjacent UHPC mounting plates is evenly distributed, providing the necessary space for deformation coordination between different materials. S83. Implementation of Dynamic Accuracy Verification: Establish a real-time measurement and control system, set no less than 4 control measurement points in each installation unit, use a high-precision total station for measurement, and transmit the data to the on-site processing station in real time; implement closed-loop control, measure the relevant measurement points immediately after each panel installation is completed, compare the measured coordinates with the theoretical values ​​of the BIM model in real time, adjust the parts that exceed the allowable deviation of ±2mm immediately, remeasure until they meet the requirements, and record the final installation deviation of each component to form an accuracy report; S84. Lighting System Installation: After the main structure of the skylight is installed and inspected, the lighting system will be installed. First, the custom-made aluminum alloy light trough will be fixed to the lower end of the UHPC mounting plate and glass panel frame according to the design position, ensuring that the installation is firm and the position is accurate. Then, waterproof lamps will be installed in the aluminum alloy light trough, the power supply line will be connected, and insulation testing will be performed. Finally, the light-transmitting cover will be installed, and the beam angle formed by the waterproof lamps will be adjusted to complete the physical installation of the lighting system. During the installation of the lighting system, care should be taken to protect the installed panels to avoid damage. S85. Stress Release and Final Adjustment: After all panels are installed and verified to be in place, check the condition of the connectors. Tighten the connecting bolts in three increments according to the design requirements (50%→80%→100% of the design torque), and re-measure the overall shape before and after each tightening. After confirming that the system is free from stress deformation, complete this stage of construction to ensure the structural stability of the sunroof system for long-term use.

[0021] In one implementation, in step S9, the system is sealed and finally fixed as follows: Tighten all bolts on the UHPC brackets and glass clamps to complete the final fixation; apply weather-resistant sealant to all UHPC panel seams, glass panel seams, and junctions of different materials according to design requirements to ensure that the sealant joints are full, smooth, and continuous; take measures to prevent contamination and damage during the sealant curing period.

[0022] In one implementation, the performance test in step S10 is as follows: After the sealant has fully cured, a systematic test is conducted: a spray system is used to conduct a comprehensive water spray test on the skylight, with a water pressure of 0.3 MPa and a duration of no less than 2 hours, to check for any leakage on the indoor side; at the same time, the lighting system is powered on and tested to check the firmness of the lamp installation, the uniformity of illumination, and the waterproof performance to ensure that it meets the design requirements.

[0023] The beneficial effects of this invention are as follows: This invention effectively solves the technical problems of low construction precision, poor waterproofing performance, and low installation efficiency of traditional irregular-shaped skylights through a UHPC-glass composite irregular-shaped skylight system and construction method. The system adopts a prefabricated design, using BIM technology to guide the entire construction process, achieving factory prefabrication of components and precise on-site assembly with an error controlled within ±2mm. A spatial steel frame provides stable support, and the UHPC hanging panels and glass panels are reliably fixed through a dedicated connection system. Combined with a multi-layered waterproof and thermal insulation structure, this ensures the structural safety and watertightness of the skylight. The construction process employs a combination of ground pre-assembly and dynamic precision verification, significantly improving installation quality and efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a UHPC-glass composite irregular-shaped skylight system.

[0026] Figure 2 This is a three-dimensional schematic diagram of a UHPC-glass composite irregular-shaped skylight system.

[0027] Figure 3 This is a schematic diagram of a UHPC-glass composite irregular-shaped skylight steel structure layout.

[0028] Figure 4 This is a structural diagram of the connection node between the UHPC mounting plate and the steel frame.

[0029] Figure 5 This is a structural diagram of the connection node between the glass panel and the frame.

[0030] Figure 6 This is a structural schematic diagram of the intersection node of the external corner of a UHPC board.

[0031] Figure 7This is an enlarged view of the lighting fixture installation at point A in a schematic diagram of a UHPC-glass composite irregular-shaped skylight system.

[0032] Reference numerals: 1. Thermal insulation rock wool; 2. Alumina board; 3. Rear-mounted embedded plate; 4. Channel steel adapter; 5. Glass panel; 6. Aluminum alloy edge protector; 7. TPO waterproof membrane; 8. UHPC hanging plate; 9. Support plate; 10. Stainless steel back bolt; 11. Aluminum alloy hanger; 12. Waterproof lighting fixture; 13. Aluminum alloy light trough. Detailed Implementation

[0033] To make the technical problems, technical solutions, and technical effects of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0037] Example 1 like Figures 1 to 7 As shown, this embodiment provides a UHPC-glass composite irregular skylight system, including a space steel frame system, a UHPC hanging panel 8 system, a glass panel 5 system, a waterproof and thermal insulation system, and a lighting system; The spatial steel frame system includes a spatial grid system, a post-installed embedded plate 3 that is reliably anchored to the civil structure by mechanical anchor bolts, and a channel steel adapter 4 that fixes the spatial grid system to the post-installed embedded plate 3. The channel steel adapter 4 is used to precisely adjust the installation elevation and plane position of the frame and compensate for errors in civil construction. The spatial grid system includes a main keel and a secondary keel, both of which are hot-dip galvanized steel rectangular tubes connected by stainless steel bolts. The UHPC mounting plate 8 system includes UHPC mounting plate 8 and aluminum alloy bracket 11. Stainless steel back bolts 10 are pre-embedded on the back of UHPC mounting plate 8. One end of aluminum alloy bracket 11 is connected to the back bolt, and the other end of aluminum alloy bracket 11 is connected to hot-dip galvanized angle steel welded to the main keel by bolts. UHPC mounting plate 8 is located on the side of the space steel frame system. The glass panel 5 system includes an aluminum alloy frame and a glass panel 5 embedded in the aluminum alloy frame. The aluminum alloy frame is fixed to the top of the space steel frame system by bolts. The connection between the aluminum alloy frame and the glass panel 5 is provided with elastic pressure strips and sealing strips for fixing the two. An aluminum alloy edge protector 6 is provided at the external corner where the aluminum alloy frame meets the UHPC mounting plate 8.

[0038] Specifically, the spatial steel frame system serves as the core load-bearing and supporting framework for the entire skylight. This system includes a rear-mounted embedded plate 3, reliably anchored to the civil structure via mechanical anchors, effectively transferring the skylight load to the main body; a channel steel adapter 4 connected to the rear-mounted embedded plate 3 to precisely adjust the installation elevation and planar position of the spatial grid system, compensating for errors in civil construction; and primary and secondary joists, which are hot-dip galvanized steel rectangular tubes connected by stainless steel bolts, forming a stable spatial grid system. The rigidity and stability of the spatial steel frame system provide a precise installation base and load-bearing support for the UHPC hanging panel 8, glass panel 5, and the construction of the insulation and waterproofing layers.

[0039] In addition, the UHPC mounting plate 8 is a factory-prefabricated ribbed thin-walled component. A high-strength connection interface is formed by stainless steel back bolts 10 embedded in the UHPC mounting plate 8. One end of the aluminum alloy hanger 11 is connected to the stainless steel back bolt 10, and the other end is connected to the hot-dip galvanized angle steel welded to the main keel via bolts. There are four stainless steel back bolts 10, forming a "four-point support" hanging mode. This connection method is a three-dimensional adjustable system, allowing for fine-tuning of the UHPC mounting plate 8 during installation. This not only compensates for installation errors but also actively adapts to minor angular changes in irregularly shaped panels within space.

[0040] Furthermore, to achieve transparent lighting, the glass panel 5 system employs custom-made glass panels. The aluminum alloy frame is bolted to the spatial steel frame, forming a continuous and precise frame for glass installation. Custom-cut tempered laminated glass is embedded in the aluminum alloy frame and secured with elastic strips and sealing strips, forming a stable support structure. Additionally, a dedicated aluminum alloy edge protector 6 is installed at the external corner where the glass panel 5 meets the UHPC mounting plate 8. This component acts as a buffer, effectively absorbing the relative displacement and deformation caused by thermal expansion and contraction or wind loads between different materials (glass panel 5 and UHPC mounting plate 8) through its own deformation capacity, preventing localized stress concentration or breakage of the glass due to rigid contact.

[0041] Example 2 This embodiment is a further optimization based on Embodiment 1, specifically: The waterproof and thermal insulation system includes a main waterproof layer, a secondary waterproof layer, a drainage channel, and a thermal insulation layer. The main waterproof layer includes 7 layers of TPO waterproof membrane laid on top of the spatial steel frame system. The 7 layers of TPO waterproof membrane are welded at the joints to form a complete sealed waterproof layer and overlap with the roof waterproof system. The secondary waterproofing layer includes an alumina plate 2 installed inside the UHPC mounting plate 8. The secondary waterproofing layer works in conjunction with the drainage channel designed at the joint. The insulation layer is the insulating rock wool 1 that fills the cavity of the space steel frame system and the cold bridge area at the edge of the glass panel 5.

[0042] Specifically, the waterproofing and insulation system constructs a multi-layered, continuous, comprehensive protection system. The main waterproofing layer consists of TPO waterproof membrane 7 laid on top of the spatial steel frame system. This membrane forms a complete sealed waterproof layer at the joints through welding and reliably overlaps with the roof waterproofing system. For secondary waterproofing and drainage, an alumina plate 2 installed inside the UHPC siding 8 serves as both a moisture-proof layer and an auxiliary waterproofing barrier, working in conjunction with drainage channels designed at the joints to form a waterproofing mechanism that prioritizes drainage while combining prevention and drainage. The insulation layer consists of insulating rock wool 1 filled in the steel frame cavity and the cold bridge areas at the edges of the glass panels 5, effectively blocking heat transfer channels, preventing indoor condensation, and ensuring the overall thermal performance of the skylight.

[0043] Example 3 This embodiment is a further optimization based on Embodiment 1 or Embodiment 2, specifically: The lighting system includes an aluminum alloy light trough 13 that is seamlessly embedded or integrated at the junction of the glass panel 5 and the UHPC mounting plate 8 at the bottom, and a waterproof luminaire 12 integrated inside the aluminum alloy light trough 13.

[0044] Specifically, the lighting system aims to achieve uniform and soft diffused light, creating an artistic lighting effect where the light source is not visible. A custom-designed aluminum alloy light trough 13 can be seamlessly embedded or integrated into specific parts of the skylight (such as the junction of the glass panel 5 and the UHPC mounting plate 8), achieving a "hidden" installation. Waterproof light fixtures 12 are integrated inside the light trough; the light emitted from these fixtures is reflected and diffused by the trough, forming a uniform and soft light band on the decorative panel surface.

[0045] Example 4 This embodiment provides a construction method for a UHPC-glass composite irregular-shaped skylight system, used to manufacture the UHPC-glass composite irregular-shaped skylight system described in any one of Embodiments 1 to 3, including the following steps: S1. Civil engineering structure review; S2, BIM model refinement and prefabrication of components in factories; S3, Installation of rear embedded plate 3 and repair of waterproof layer; S4. Measurement and layout, and installation of the spatial steel frame; S5. Lightning protection construction; S6. Waterproofing and insulation layer construction; S7. Ground pre-assembly and installation benchmark calibration; S8. Segmented mounting and dynamic accuracy verification; S9. System sealing and final fixation; S10, Performance Testing.

[0046] In step S1, the specific steps for the civil engineering structure review are as follows: A comprehensive 3D laser scanning technique was employed to map the roof structure. During the scanning process, multiple scanning stations were deployed on the completed civil engineering roof structure to ensure full coverage without blind spots. A 3D laser scanner with an accuracy of at least ±2mm was used, with each station's scanning time controlled to 3-5 minutes depending on the site environment, simultaneously collecting coordinate data of on-site control points. Data processing and analysis involved importing the point cloud data from each station into processing software for registration, generating a complete 3D point cloud model of the roof (point cloud density set at at least 5mm × 5mm). The point cloud model was then compared and analyzed with the original BIM theoretical model, focusing on detecting deviations in roof flatness, structural elevation, and axis position. Areas exceeding allowable deviations were highlighted, and correction suggestions and construction adjustment plans were provided. 3D laser scanning technology allows for the rapid and accurate acquisition of actual on-site structural data, providing precise data for subsequent BIM model adjustments and component fabrication, ensuring the installation accuracy of the skylight system from the outset.

[0047] In step S2, the specific steps for BIM model refinement and component prefabrication are as follows: S21. Data integration and model adjustment: Fit the point cloud data generated by 3D laser scanning with the final design BIM model of the skylight, correct and refine the model, and ensure that the model is highly consistent with the actual structure on site, eliminating the deviation between theoretical design and site conditions from the source. S22. Model Analysis and Verification: Using the adjusted and accurate BIM model, comprehensive structural calculations and load simulations are performed to verify the safety and reliability of the system under extreme conditions such as wind load and snow load. At the same time, comprehensive collision detection is carried out to accurately identify and resolve interference problems between all components and between components and connectors in complex three-dimensional space, transforming abstract morphological problems into manageable data problems to ensure the feasibility of the design scheme. S23. Component Division and Data Generation: After analysis and verification, the skylight is divided into reasonable sections based on the BIM model; then, based directly on the verified model, the precise processing drawings, material lists and spatial positioning data of all UHPC hanging panels 8, glass panels 5, steel frame rods and connectors are generated. S24. Factory Prefabrication and Information Management: The above data files are transmitted to the collaborating factory for digital processing and prefabrication of all components; UHPC siding 8 is cast using customized molds; glass panels 5 are tempered, laminated, and subjected to possible hot bending treatments based on the data; steel components are precisely cut and drilled; at the same time, each component is assigned a unique code so that it can be traced in subsequent logistics, warehousing, and installation stages, realizing information management throughout the entire life cycle. S25. Center of gravity calculation and hoisting scheme simulation: Using the BIM model, each component is assigned precise material properties, and the software automatically calculates the center of gravity position of complex irregular components, providing a precise basis for the selection of special hoisting tools and the preparation of hoisting schemes in step eight.

[0048] In step S3, the post-installed embedded plate 3 is installed on the roof structure according to the positioning points laid out in the BIM model. After completion, the original roof waterproofing layer damaged by construction is immediately systematically repaired. The specific steps for installing the post-installed embedded plate 3 and repairing the waterproofing layer are as follows: S31. Substrate treatment and sealing: Thoroughly clean the substrate around the embedded plate to ensure it is firm and flat; inject high-performance sealant (such as modified silane or polyurethane sealant) into the anchor bolt holes and the gaps between the embedded plate and the substrate to ensure full filling and form the first flexible sealing barrier. S32. Construction of the coating reinforcement layer: Taking the rear embedded plate 3 as the center, extend outwards to an area of ​​not less than 250mm, apply at least two coats of high polymer elastic waterproof coating in a longitudinal and transverse manner to completely cover all edges and anchor bolts, forming a continuous and elastic coating reinforcement layer. S33, Integrated Waterproofing Membrane Layer: Select a high-quality waterproofing membrane (such as TPO waterproofing membrane 7) that is compatible with the original waterproofing layer, lay it to the buried plate area, and use hot air welding to make it seamlessly connected with the surrounding large-area waterproofing layer, reconstructing a complete, non-perforated overall waterproofing system. S34. Surveying and Setting Out and Spatial Steel Frame Installation: Using precision instruments such as total stations, the control axis, elevation benchmarks and key node positions of the skylights are accurately measured on site according to the BIM model coordinates. First, install the channel steel adapter 4 and use its elongated hole for three-dimensional adjustment to accurately compensate for civil engineering errors. Then, install the main and secondary keels in sequence and connect them with stainless steel bolts to form the designed spatial grid system. During the installation process, measurement and monitoring are required throughout to ensure that the overall shape, elevation and position of the frame meet the design accuracy requirements.

[0049] In step S5, the lightning protection construction is as follows: A spatial grid system is used as a natural down conductor, which is then welded to the building's main lightning protection system. 40×4mm hot-dip galvanized flat steel is welded at the nodes of the spatial grid system, with the other end reliably connected to the roof lightning protection strip. All welding points are double-sided welded, with a weld length of not less than 100mm. Anti-corrosion treatment is applied after welding. A grounding resistance tester is used to measure the grounding resistance value, ensuring it is not greater than 1Ω, and a test record is created. In step S6, the waterproofing and insulation layer construction is as follows: First, a galvanized steel plate support plate 9 is installed at the bottom of the steel frame cavity of the spatial grid system and fixed to the steel frame with rivets. Then, thermal insulation rock wool 1 is fully laid on the support plate 9 to ensure that it is laid densely and the joints are staggered. Next, an alumina waterproof board is installed on the surface of the insulation layer, and the joints between the boards are sealed with weather-resistant sealant. Finally, TPO waterproof membrane 7 is laid on the alumina board 2, and the joints of the membrane are hot-air welded. The edges of the membrane are turned up and wrapped at the parts that pass through the components to form a complete waterproof and thermal insulation system.

[0050] In step S7, the ground pre-assembly and installation reference calibration are as follows: A flat assembly platform is erected in the vicinity of the construction site. A rigid platform is erected and leveled, and the flatness of the platform is controlled within ±1mm / m.

[0051] S71. Pre-assembly Preparation and Implementation: Select the steel frame, UHPC hanging plate 8, glass panel 5 and related connectors in the ground assembly area for pre-assembly. First, clean all component contact surfaces and check the processing accuracy, and prepare measuring equipment such as total station and laser level. Then, place the steel frame according to the design position and adjust it to the theoretical coordinate position. Install the UHPC hanging plate 8 in sequence and fix it initially through the back bolt system. Next, install the glass panel 5 and set the aluminum alloy edge guard 6. Finally, use a torque wrench to pre-tighten all connecting bolts to 50% of the design torque. S72. Precision Calibration and Benchmarking: After pre-assembly, the coordinates of each control point of the unit are measured using a total station. The obtained data are compared with the theoretical values ​​in the BIM model item by item. The overall installation error is strictly controlled within ±2mm by fine-tuning the position of the components. Subsequently, the installation boundary lines, hanging point center positioning lines, glass panel 5 installation benchmark lines, and connector installation positions of each UHPC hanging plate 8 are systematically calibrated on the calibrated steel frame using engraving lines or special marking parts, providing a precise physical benchmark for high-altitude block installation.

[0052] In step S8, the block mounting and dynamic accuracy verification are as follows: Following the installation sequence optimized by the BIM model simulation, the UHPC mounting plate 8 and glass panel 5 were hoisted to their positions at high altitude. S81. For UHPC mounting plate 8: According to the pre-assembled lifting sequence, use special lifting tools to lift the UHPC mounting plate 8 in sections to avoid damage to the plate edges; after positioning, immediately perform three-dimensional adjustment through the back bolt hanging system: use the elongated holes of the hanging parts to achieve ±15mm plane position adjustment, use the adjusting bolts to achieve ±10mm elevation adjustment, and use the ball joint connectors to achieve ±3° angle fine adjustment; after completing the initial fixing, immediately conduct the first round of accuracy verification to lay the foundation for subsequent installation; S82. For glass panel 5: Install glass panel 5 according to the principle of partitioning and batching; first, embed the customized glass panel 5 into the adjusted aluminum alloy frame, and use elastic pressure strips to achieve temporary fixation and maintain an adjustable state; at the same time, install the special aluminum alloy edge protector 6 to ensure that the gap between it and the adjacent UHPC mounting plate 8 is evenly distributed, so as to provide the necessary space for deformation coordination between different materials. S83. Implementation of Dynamic Accuracy Verification: Establish a real-time measurement and control system, set no less than 4 control measurement points in each installation unit, use a high-precision total station for measurement, and transmit the data to the on-site processing station in real time; implement closed-loop control, measure the relevant measurement points immediately after each panel installation is completed, compare the measured coordinates with the theoretical values ​​of the BIM model in real time, adjust the parts that exceed the allowable deviation of ±2mm immediately, remeasure until they meet the requirements, and record the final installation deviation of each component to form an accuracy report; S84. Lighting System Installation: After the main structure of the skylight is installed and inspected, the lighting system is installed. First, the customized aluminum alloy light trough 13 is fixed to the lower end of the UHPC mounting plate 8 and glass panel 5 frame according to the design position, ensuring that the installation is firm and the position is accurate. Then, waterproof lamps 12 are installed in the aluminum alloy light trough 13, the power supply line is connected, and insulation testing is performed. Finally, the light-transmitting cover is installed, and the beam angle formed by the waterproof lamps 12 is adjusted to complete the physical installation of the lighting system. During the installation of the lighting system, care should be taken to protect the installed panels to avoid damage. S85. Stress Release and Final Adjustment: After all panels are installed and verified to be in place, check the condition of the connectors. Tighten the connecting bolts in three increments according to the design requirements (50%→80%→100% of the design torque), and re-measure the overall shape before and after each tightening. After confirming that the system is free from stress deformation, complete this stage of construction to ensure the structural stability of the sunroof system for long-term use.

[0053] In step S9, the system is sealed and finally fixed as follows: Tighten all bolts on the UHPC brackets and glass clamps to complete the final fixation; apply weather-resistant sealant to all UHPC panel seams, glass panel seams, and junctions of different materials according to design requirements to ensure that the sealant joints are full, smooth, and continuous; take measures to prevent contamination and damage during the sealant curing period.

[0054] In step S10, the performance test is as follows: After the sealant has fully cured, a systematic test is conducted: a spray system is used to conduct a comprehensive water spray test on the skylight, with a water pressure of 0.3 MPa and a duration of no less than 2 hours, to check for any leakage on the indoor side; at the same time, the lighting system is powered on and tested to check the firmness of the lamp installation, the uniformity of illumination, and the waterproof performance to ensure that it meets the design requirements.

Claims

1. A UHPC-glass composite irregular-shaped skylight system, characterized in that, It includes a space steel frame system, a UHPC hanging panel (8) system, a glass panel (5) system, a waterproof and thermal insulation system, and a lighting system; The spatial steel frame system includes a spatial grid system, a rear-mounted embedded plate (3) that is reliably anchored to the civil structure by mechanical anchor bolts, and a channel steel adapter (4) that fixes the spatial grid system on the rear-mounted embedded plate (3); the channel steel adapter (4) is used to precisely adjust the installation elevation and plane position of the frame and compensate for civil construction errors. The spatial grid system includes a main keel and a secondary keel, both of which are hot-dip galvanized steel rectangular tubes connected by stainless steel bolts. The UHPC mounting plate (8) system includes a UHPC mounting plate (8) and an aluminum alloy bracket (11). A stainless steel back bolt (10) is pre-embedded on the back of the UHPC mounting plate (8). One end of the aluminum alloy bracket (11) is connected to the back bolt, and the other end of the aluminum alloy bracket (11) is connected to the hot-dip galvanized angle steel welded to the main keel by bolts. The UHPC mounting plate (8) is located on the side of the space steel frame system. The glass panel (5) system includes an aluminum alloy frame and a glass panel (5) embedded in the aluminum alloy frame. The aluminum alloy frame is fixed to the top of the space steel frame system by bolts. An elastic pressure strip and a sealing strip are provided at the connection between the aluminum alloy frame and the glass panel (5) for fixing the two. An aluminum alloy guard (6) is provided at the external corner where the aluminum alloy frame meets the UHPC mounting plate (8).

2. The UHPC-glass composite irregular-shaped skylight system according to claim 1, characterized in that, The waterproof and thermal insulation system includes a main waterproof layer, a secondary waterproof layer, a drainage channel and a thermal insulation layer. The main waterproof layer includes a TPO waterproof membrane (7) layer laid on top of the spatial steel frame system. The TPO waterproof membrane (7) layer forms a complete sealed waterproof layer at the joint by welding and overlaps with the roof waterproof system. The secondary waterproof layer includes an alumina plate (2) disposed inside the UHPC mounting plate (8), and the secondary waterproof layer works in conjunction with the drainage channel designed at the joint. The insulation layer is insulating rock wool (1) that fills the cavity of the space steel frame system and the cold bridge area at the edge of the glass panel (5).

3. The UHPC-glass composite irregular-shaped skylight system according to claim 2, characterized in that, The lighting system includes an aluminum alloy light trough (13) seamlessly embedded or integrated at the junction of the glass panel (5) and the UHPC mounting plate (8), and a waterproof lamp (12) integrated inside the aluminum alloy light trough (13).

4. A construction method for a UHPC-glass composite irregular-shaped skylight system, used to prepare the UHPC-glass composite irregular-shaped skylight system according to any one of claims 1 to 3, characterized in that, Includes the following steps: S1. Civil engineering structure review; S2, BIM model refinement and prefabrication of components in factories; S3, Installation of the rear embedded plate (3) and repair of the waterproof layer; S4. Measurement and layout, and installation of the spatial steel frame; S5. Lightning protection construction; S6. Waterproofing and insulation layer construction; S7. Ground pre-assembly and installation benchmark calibration; S8. Segmented mounting and dynamic accuracy verification; S9. System sealing and final fixation; S10, Performance Testing.

5. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 4, characterized in that, In step S1, the specific steps for the civil engineering structure review are as follows: A comprehensive 3D laser scanning technique was employed to map the roof structure. During the scanning process, multiple scanning stations were deployed across the completed civil engineering roof structure to ensure full coverage without blind spots. A 3D laser scanner with an accuracy of at least ±2mm was used, with each station's scanning time controlled to 3-5 minutes depending on the site conditions, simultaneously collecting coordinate data of on-site control points. Data processing and analysis involved importing the point cloud data from each station into processing software for registration, generating a complete 3D point cloud model of the roof. The point cloud model was then compared and analyzed with the original BIM theoretical model, focusing on detecting deviations in roof flatness, structural elevation, and axis position. Areas exceeding allowable deviations were highlighted, and correction suggestions and construction adjustment plans were provided. Through 3D laser scanning technology, actual structural data can be quickly and accurately acquired on-site, providing a precise basis for subsequent BIM model adjustments and component fabrication, ensuring the installation accuracy of the skylight system from the outset.

6. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 5, characterized in that, In step S2, the specific steps for BIM model refinement and component prefabrication are as follows: S21. Data integration and model adjustment: Fit the point cloud data generated by 3D laser scanning with the final design BIM model of the skylight, correct and refine the model, and ensure that the model is highly consistent with the actual structure on site, eliminating the deviation between theoretical design and site conditions from the source. S22. Model Analysis and Verification: Using the adjusted and accurate BIM model, conduct comprehensive structural calculations and load simulations to verify the safety and reliability of the system under extreme conditions of wind and snow loads. At the same time, conduct comprehensive collision detection to accurately identify and resolve interference problems between all components and between components and connectors in complex three-dimensional space, transforming abstract morphological problems into manageable data problems to ensure the feasibility of the design scheme. S23, Component division and data generation: After analysis and verification, the skylight is divided into reasonable sections based on the BIM model; then, based directly on the verified model, the precise processing drawings, cutting lists and spatial positioning data of all UHPC hanging panels (8), glass panels (5), steel frame members and connectors are generated. S24. Factory Prefabrication and Information Management: The above data files are transmitted to the cooperating factory for digital processing and prefabrication of all components; UHPC panels (8) are cast using customized molds; glass panels (5) are tempered, laminated and possibly hot-bent according to the data; steel components are precisely cut and drilled; at the same time, each component is given a unique code so that it can be traced in the subsequent logistics, warehousing and installation links, and information management of the whole life cycle is realized. S25. Center of gravity calculation and hoisting scheme simulation: Using the BIM model, each component is assigned precise material properties, and the software automatically calculates the center of gravity position of complex irregular components, providing a precise basis for the selection of special hoisting tools and the preparation of hoisting schemes in step eight.

7. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 6, characterized in that, In step S3, the post-installed embedded plate (3) is installed on the roof structure according to the positioning points laid out in the BIM model; after completion, the original roof waterproofing layer damaged by construction is systematically repaired immediately; the specific steps of the installation of the post-installed embedded plate (3) and the repair of the waterproofing layer are as follows: S31. Substrate treatment and sealing: Thoroughly clean the substrate around the embedded plate to ensure it is firm and flat; inject high-performance sealant into the anchor bolt holes and the gaps between the embedded plate and the substrate to ensure full filling and form the first flexible sealing barrier. S32. Construction of the coating reinforcement layer: With the rear embedded plate (3) as the center, extend outwards to a range of not less than 250mm, apply at least two coats of high polymer elastic waterproof coating in a longitudinal and transverse manner to completely cover all edges and anchor bolts, forming a continuous and elastic coating reinforcement layer. S33, Roll layer integration: Select a high-quality roll material (such as TPO waterproof roll material (7)) that is compatible with the original waterproof layer, lay it to the buried plate area, and use hot air welding to make it seamlessly connected with the surrounding large-area waterproof layer, reconstructing a complete, non-perforated overall waterproof system; S34. Surveying and Setting Out and Spatial Steel Frame Installation: Using a total station precision instrument, the control axis, elevation benchmark point and key node position of the skylight are accurately measured on site according to the BIM model coordinates; First, install the channel steel adapter (4) and use its elongated hole for three-dimensional adjustment to accurately compensate for civil engineering errors; then, install the main and secondary keels in sequence and connect them with stainless steel bolts to form the designed spatial grid system; during the installation process, measurement and monitoring should be carried out throughout to ensure that the overall shape, elevation and position of the skeleton meet the design accuracy requirements.

8. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 7, characterized in that, In step S5, the lightning protection construction is as follows: A spatial grid system is used as a natural down conductor, which is then welded to the building's main lightning protection system. 40×4mm hot-dip galvanized flat steel is welded at the nodes of the spatial grid system, with the other end reliably connected to the roof lightning protection strip. All welding points are double-sided welded, with a weld length of not less than 100mm. Anti-corrosion treatment is applied after welding. A grounding resistance tester is used to measure the grounding resistance value, ensuring it is not greater than 1Ω, and a test record is created. In step S6, the waterproofing and insulation layer construction is as follows: First, a galvanized steel plate support plate (9) is installed at the bottom of the steel frame cavity of the spatial grid system and fixed to the steel frame with rivets; then, thermal insulation rock wool (1) is fully laid on the support plate (9) to ensure that it is laid densely and the joints are staggered; then, an alumina waterproof board is installed on the surface of the insulation layer, and the joints between the boards are sealed with weather-resistant sealant; finally, TPO waterproof membrane (7) is laid on the alumina board (2), the joints of the membrane are hot-air welded, and the edges are turned up at the parts that pass through the components to form a complete waterproof and thermal insulation system.

9. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 8, characterized in that, In step S7, the ground pre-assembly and installation reference calibration are as follows: A flat assembly platform was erected in the vicinity of the construction site. The rigid platform was erected and leveled, and the flatness of the platform was controlled within ±1mm / m. S71. Pre-assembly preparation and implementation: Select steel frame, UHPC hanging plate (8), glass panel (5) and related connectors in the ground assembly area for pre-assembly. First, clean all component contact surfaces and check the processing accuracy. Prepare total station and laser level. Then, place the steel frame according to the design position and adjust it to the theoretical coordinate position. Install UHPC hanging plate (8) in sequence and fix it initially through the back bolt system. Then, install glass panel (5) and set aluminum alloy edge guard (6). Finally, use torque wrench to pre-tighten all connecting bolts to 50% of the design torque. S72. Precision calibration and benchmark calibration: After the pre-assembly is completed, the coordinates of each control point of the unit are measured by a total station. The obtained data are compared with the theoretical values ​​in the BIM model item by item. The overall installation error is strictly controlled within ±2mm by fine-tuning the position of the components. Then, the installation boundary line, hanging point center positioning line, glass panel (5) installation benchmark line and connector installation position of each UHPC hanging plate (8) are systematically calibrated on the calibrated steel frame using engraving lines or special marking parts, so as to provide accurate physical benchmarks for high-altitude block installation.

10. The construction method of a UHPC-glass composite irregular-shaped skylight system according to claim 9, characterized in that, In step S8, the block mounting and dynamic accuracy verification are as follows: Following the installation sequence optimized by the BIM model simulation, the UHPC mounting plate (8) and glass panel (5) were hoisted to the high altitude in sections; S81. For UHPC mounting plates (8): According to the pre-assembled lifting sequence, use special lifting tools to lift the UHPC mounting plates (8) in sections to avoid damage to the plate edges; after positioning, immediately perform three-dimensional adjustment through the back bolt hanging system: use the long oval holes of the hanging parts to achieve ±15mm plane position adjustment, use the adjusting bolts to complete ±10mm elevation adjustment, and use the ball joint connectors to achieve ±3° angle fine adjustment; after completing the initial fixing, immediately perform the first round of accuracy verification to lay the foundation for subsequent installation; S82. For glass panel (5): Follow the principle of partitioning and batch installation of glass panel (5); first, embed the customized glass panel (5) into the adjusted aluminum alloy frame, use elastic pressure strip to achieve temporary fixation and maintain the adjustable state; simultaneously install special aluminum alloy guard (6) to ensure that the gap between it and the adjacent UHPC mounting plate (8) is evenly distributed, providing the necessary space for deformation coordination between different materials. S83. Implementation of Dynamic Accuracy Verification: Establish a real-time measurement and control system, set no less than 4 control measurement points in each installation unit, use a high-precision total station for measurement, and transmit the data to the on-site processing station in real time; implement closed-loop control, measure the relevant measurement points immediately after each panel installation is completed, compare the measured coordinates with the theoretical values ​​of the BIM model in real time, adjust the parts that exceed the allowable deviation of ±2mm immediately, remeasure until they meet the requirements, and record the final installation deviation of each component to form an accuracy report; S84. Lighting System Installation: After the main structure of the skylight is installed and verified to be qualified, the lighting system is installed. First, the customized aluminum alloy light trough (13) is fixed at the lower end of the UHPC mounting plate (8) and the glass panel (5) frame according to the design position to ensure that the installation is firm and the position is accurate. Then, waterproof lamps (12) are installed in the aluminum alloy light trough (13), the power supply line is connected, and the insulation test is carried out. Finally, the light-transmitting cover is installed, and the beam angle formed by the test waterproof lamps (12) is adjusted to complete the physical installation of the lighting system. During the installation of the lighting system, care should be taken to protect the installed panels to avoid damage. S85. Stress Release and Final Adjustment: After all panels are installed and verified to be in place, check the condition of the connectors. Tighten the connecting bolts in three increments according to the design requirements, and re-measure the overall shape before and after each tightening. After confirming that the system is free from stress deformation, complete this stage of construction to ensure the structural stability of the skylight system for long-term use.

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