How Digital Technology Achieves Precise Alignment of Double-Curved GRC Panels: Research on Key Technologies and Application Practices

In the field of contemporary architectural design, double-curved GRC panels, with their unique curved aesthetics and structural performance, have become the "shaping code" of high-end projects such as landmark buildings and cultural venues. However, their complex spatial forms place extremely high demands on precise jointing technology. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has solved the whole-process challenges of double-curved GRC panels from design to installation through digital technology innovation, providing the industry with a replicable technical paradigm.

Digital Technology Restructures the Design Logic of Double-Curved GRC Panels
Traditional design of double-curved GRC panels relies on manual setting-out and empirical judgment, which easily leads to error accumulation and shape distortion. Qinglong Group introduced a parametric design platform, building mathematical models of double-curved surfaces through Rhino and Grasshopper to transform designers' creative ideas into precise digital parameters. Taking a grand theater project as an example, the 126 double-curved GRC panels on its facade were generated into 3D models by algorithms, achieving irregular constructions with a minimum curvature radius of 300mm, improving design efficiency by 40% over traditional methods. Meanwhile, combined with BIM technology for clash detection, spatial conflicts between pipelines and components are avoided in advance, ensuring zero error in the detailed design stage. For more industry information: +WeChat qlfsbl123

Intelligent Manufacturing Ensures Production Precision of Double-Curved GRC Panels
The precise jointing of double-curved GRC panels starts with millimeter-level production control. Qinglong Group deployed industrial-grade 3D scanners at its production base in Nanning, Guangxi, to conduct full-size inspection of molds, keeping mold errors within ±1mm. An automated material distribution system and vacuum forming process ensure uniform distribution of glass fibers and the cement matrix, guaranteeing a flexural strength of over 20MPa. To meet the jointing needs of double-curved panels, Qinglong innovatively developed "mortise-and-tenon" connection joints, machined by CNC machine tools to achieve seamless interlocking between adjacent panels. At present, Qinglong has an annual production capacity of 600,000 square meters of UHPC/GRC/GRG/GRP products, with double-curved components accounting for 35%, and has served benchmark projects such as Century Plaza on Nanjing East Road and the Dongguan Women and Children's Activity Center.

Digital Construction Solves the Installation Challenges of Double-Curved GRC Panels
On-site installation is the "last mile" of precise jointing for double-curved GRC panels. The Qinglong team adopted 3D laser scanning technology to create as-built models of the building structure, generated deviation reports by comparing them with the design models, and dynamically adjusted installation coordinates through the Adjustment algorithm. In a commercial complex project, BIM+AR technology enabled virtual pre-assembly of components, controlling high-altitude installation errors within ±3mm and improving efficiency by 50% over traditional hoisting. In addition, the self-developed modular installation brackets allow three-dimensional six-direction fine adjustment, ensuring smooth transitions between double-curved panels. As a participating editor of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC), Qinglong has integrated its digital construction experience into industry codes, promoting technical standardization.

Full-Chain Digitalization Empowers the Value Enhancement of Double-Curved GRC Panels
From design to maintenance, Qinglong has built a full life-cycle digital management system for double-curved GRC panels. Through RFID chip implantation, each component receives a unique identity, combined with a cloud database that records information across the entire process of production, installation, and maintenance. For overseas projects, digital twin technology is used to remotely monitor component status—for example, the double-curved GRC curtain wall of a landmark project in Malaysia achieves cross-time-zone operation and maintenance response through real-time data transmission. This injection of "digital genes" not only improves the engineering reliability of double-curved GRC panels, but also enables Qinglong to achieve technical synergy in fields such as ultra-high performance concrete (UHPC) and glass fiber reinforced gypsum molded products (GRG), consolidating its leading position as a new-type decorative building materials enterprise. For more industry information: +WeChat qlfsbl123

As architectural aesthetics explore ever more complex forms, the application of double-curved GRC panels will continue to expand. With 28 years of technological accumulation as its foundation and through the deep integration of digital technologies, Qinglong Group is turning its mission of "creating beautiful architecture" into tangible urban landmarks one by one. In the future, with the implementation of standards such as the General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC), digital precision jointing technology will become the core competitiveness in the high-end decorative materials field, and Qinglong will continue to uphold its values of "honesty, hard work, trust, and collaboration" to drive the industry toward greater intelligence and refinement.