How Digital Technology Achieves Precise Alignment of Double-Curved GRC Panels — Research on Key Technologies and Practical Applications

Driven by the dual forces of contemporary architectural aesthetics and engineering technology, double-curved GRC panels have become the finishing touch of landmark buildings and high-end spaces thanks to their unique curved-surface expressiveness. However, their complex spatial forms and demanding installation requirements pose severe challenges to digital technology. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has solved the long-standing industry challenge of precisely aligning double-curved GRC panels through full-chain digital technology innovation, setting a technical benchmark for the architectural decoration industry.

The precise alignment of double-curved GRC panels relies first on digital modeling technology at the design stage. Traditional two-dimensional drawings can hardly present the spatial curvature of double-curved surfaces, whereas Qinglong Group uses the Rhino and Grasshopper parametric design platforms combined with BIM technology to build three-dimensional models, transforming designers' creative ideas into quantifiable digital parameters. Through mesh subdivision and topology optimization of double-curved surfaces, surface control with millimeter-level precision is achieved, laying the data foundation for subsequent production and installation. This digital design approach not only solves the visualization challenge of complex shapes, but also achieves seamless integration between design schemes and production processes.

Digital upgrading in the manufacturing stage is the core link in ensuring the precise alignment of double-curved GRC panels. Qinglong Group has introduced industrial-grade 3D scanning and CNC machining technology to carry out digital reverse modeling and precision machining of molds. By converting design models into CNC machining code, precise replication of mold surfaces is achieved, ensuring that the geometric dimensions of every GRC component are highly consistent with the design model. Meanwhile, automated material placing and curing systems, combined with RFID chip tracing technology, enable quality monitoring throughout the entire component production process, safeguarding the dimensional accuracy and structural performance of double-curved GRC panels at the source.

Digital installation technology on the construction site is the last mile in achieving the precise alignment of double-curved GRC panels. Qinglong Group has developed a site positioning system based on 3D laser scanning, which collects real-time coordinate data of the building structure, compares and analyzes it against the design model, and generates error adjustment plans. BIM technology is used for virtual pre-assembly, identifying and resolving collision problems during installation in advance; modular hoisting and real-time monitoring technology ensure that the spatial orientation of double-curved GRC panels remains precisely controllable throughout installation. This digital installation process keeps the alignment error of double-curved GRC panels within ±2mm, far exceeding the industry standard.

The application of digital technology across the entire chain—from design and production to construction—has not only achieved the precise alignment of double-curved GRC panels, but has also driven the technological upgrading of the architectural decoration industry. As a national high-tech enterprise and a drafting unit of GRC industry standards, Qinglong Group has always upheld the mission of "creating aesthetically beautiful architecture", providing designers and owners with full-process solutions from concept to completion through technological innovation and accumulated experience. Going forward, Qinglong will continue to deepen the application of digital technology in the field of UHPC/GRC/GRG/GRP materials, empowering architectural beauty with technology, and is committed to becoming a world-leading manufacturer of architectural decoration materials.