Research on Digital Modeling Process and Key Technologies for Complex UHPC Shapes

Driven by the dual forces of contemporary architectural aesthetics and engineering technology, complex forms have become the signature language of high-end architecture. As a company with 28 years of deep expertise in the UHPC/GRC/GRG/GRP materials field, Qinglong Group profoundly understands the core value of digital modeling technology in achieving artistic architectural expression. This article systematically analyzes the key technologies throughout the entire process of complex UHPC forms from digital twin to physical realization, providing designers and owners with a full-chain solution from concept to implementation.

I. Technical Framework and Core Value of Digital Modeling for UHPC Forms

Ultra-high performance concrete (UHPC), with its ultra-high strength, excellent toughness, and extreme plasticity, has become the ideal medium for realizing complex architectural forms. As a bridge connecting design creativity with engineering implementation, the core value of digital modeling technology is reflected in three dimensions: first, achieving precise control of forms through parametric design—for example, the curved gradient effect of translucent concrete components in the Nanjing East Road Century Plaza renovation project was achieved through millimeter-level precision modeling based on the Rhino and Grasshopper platforms; second, achieving full-discipline coordination through BIM technology—in the Dongguan Women and Children's Activity Center project, Qinglong Group integrated structural, mechanical and electrical, and decorative requirements through the BIM model, incorporating 58 patented technologies into the production logic of irregular GRC components; third, avoiding construction risks through digital pre-assembly—the 600,000 square meter annual capacity of the Guangxi Nanning production base achieves efficient delivery through flexible production lines optimized by digital modeling.

II. Key Technological Breakthroughs in Complex Form Modeling

During the detailed design phase, Qinglong's technical team pioneered the "Three-Model Linkage" working method: the Building Information Model (BIM) ensures precise alignment with the main structure, the Geometry Deepening Model (GDM) handles complex details such as double-curved surfaces and openwork reliefs, and the Manufacturing Execution Model (MIM) outputs processing data directly usable in production. Taking a GRG ceiling project for a grand theater as an example, for double-curved forms with a minimum radius of curvature of 300mm, 3D laser scanning reverse modeling technology was adopted to control design errors within ±2mm. In the production stage, digital twin technology simulated the flow characteristics of UHPC materials to optimize mold design solutions, raising the first-time forming pass rate of irregular sunshade panels for a commercial complex in Zhongshan to 98%.

III. Technological Innovation Practices in Full-Chain Collaboration

As a National High-Tech Enterprise and a Specialized and Innovative Enterprise, Qinglong has built a full-chain technical system from design to maintenance. On the design side, the self-developed parametric design plugin enables automatic splitting and numbering of GRC/GRP components; on the production side, industrial robots are introduced for UHPC spray molding, combined with RFID chips to achieve full life-cycle traceability; on the construction side, a 3D positioning system ensures installation errors of ≤3mm for the 5,000 irregular UHPC cladding panels of a landmark project in Shenzhen. This "digital-driven + physical implementation" model has enabled Qinglong to successfully address material performance challenges under different climate conditions in overseas projects in Malaysia, Australia, and other countries.

IV. Industry Trends and Qinglong's Technical Proposition

With the advancement of standards such as the "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)," digital modeling is becoming a core means of quality control in the industry. Qinglong Group proposes a "Five-Dimensional Evaluation System for Digital Forms," establishing quantitative standards across five dimensions: form precision, structural safety, production efficiency, cost control, and environmental performance. As advocated by Qinglong's mission of "Creating Beautiful Architecture," the artistic expression of future buildings will increasingly rely on the deep integration of digital technology and materials science. As a member of the International GRC Association, Qinglong is willing to leverage its 28 years of technical accumulation to provide designers with full-process technical empowerment from concept sketches to completion and delivery, jointly promoting the digital upgrade of the architectural decoration industry.