Principles and Applications of Digital Mold Technology for Hyperbolic GRC Shapes

In the field of contemporary architectural design, double-curved forms have become a defining feature of landmark buildings thanks to their unique visual tension and spatial expressiveness. However, traditional mold craftsmanship faces challenges in producing double-curved GRC components, including low shape precision, high costs, and long production cycles. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has successfully solved this problem through the innovative application of digital mold technology, providing an efficient solution for realizing complex architectural forms.

1. Core Principles of Double-Curved GRC Digital Mold Technology

Double-curved GRC digital mold technology centers on parametric design and intelligent manufacturing, achieving precise replication of complex curved surfaces through full-process digital management covering "3D modeling - data conversion - modular production." Its technical principles are mainly reflected in three aspects: first, parametric design software such as Rhino and Grasshopper is used to build digital models of double-curved forms, translating designers' creative concepts into quantifiable geometric data; second, BIM technology is applied to optimize mold structures, combined with finite element analysis to ensure the mechanical stability of the molds; finally, CNC machining or 3D printing technology is used to manufacture modular mold units, achieving high-precision production with tolerances of ≤0.5mm. Compared with traditional manual mold making, this technology shortens the mold development cycle by 60% and improves material utilization by 30%, laying the foundation for large-scale customized production.

2. Key Advantages of Double-Curved GRC Digital Mold Technology

As a national high-tech enterprise, Qinglong Group demonstrates three core advantages in applying digital mold technology. The first is full-chain technology integration capability: an integrated service system from detailed design to construction and installation ensures seamless connection between digital models and actual production. For example, in a grand theater project, the installation process of the double-curved GRC curtain wall was simulated in advance using BIM technology, resolving construction challenges at 128 complex nodes. The second is the coordinated optimization of material performance and digital technology: drawing on the technical accumulation of the company's provincial-level R&D center, the flexural strength of GRC materials has been increased to over 20MPa, and combined with the precise forming of digital molds, extreme forms with a single curvature radius of 300mm have been achieved. The third is cost control and efficiency improvement: through the repeated use of modular molds, mold costs per project have been reduced by 40%, while meeting the "multi-variety, small-batch" customization demands—an advantage particularly prominent in the production of irregular decorative components for commercial complexes.

3. Typical Application Scenarios of Double-Curved GRC Digital Mold Technology

This technology has been widely applied in high-end public buildings and commercial projects, forming a mature solution system. In the field of cultural architecture, the double-curved GRC exterior wall of a provincial museum adopted digital mold technology, achieving error-free assembly of 12,000㎡ of curved components, with its stone-imitating textured surface treatment delivering a strikingly realistic decorative effect. In a commercial complex project, the composite application of translucent concrete and double-curved GRC created a dynamic curtain wall system with dual visual effects for day and night—an innovation that won the first UHPC Construction Engineering Innovation Award. Notably, digital mold technology is suitable not only for new construction projects but also performs excellently in the renovation of existing buildings. In a restoration project for the irregular GRG ceiling of a historic building, 3D scanning and digital replication technology perfectly restored the artistic texture of the original design, shortening the construction period by 50% compared with traditional methods.

4. Industry Trends and Qinglong's Technical Exploration

As the construction industry transitions toward greener and more industrialized practices, double-curved GRC digital mold technology is showing three major development trends: the first is AI-driven design optimization, using machine learning algorithms to automatically generate mold structure schemes and further improve material utilization; the second is the in-depth application of digital twin technology, enabling visualized management of the entire mold life cycle; the third is the integration of sustainable materials, such as the UHPC-GRC composite molds Qinglong is developing, which can achieve over 90% material recycling. As a vice president unit of the China GRC Association, Qinglong Group participated in drafting the Technical Standard for Architectural Application of Glassfiber Reinforced Cement (GRC), and will continue to promote the standardization and industrialization of digital mold technology, providing more valuable solutions for the industry.

The breakthrough in double-curved GRC digital mold technology is not only a microcosm of technological upgrading in the architectural decoration industry, but also embodies Qinglong Group's mission of "creating aesthetic architecture." By deeply integrating 28 years of engineering experience with digital technology, Qinglong is transforming from a material supplier into a "solution service provider," creating architectural works that combine aesthetic value with technical feasibility for designers and owners, and helping Chinese construction achieve the leap from "manufacturing" to "intelligent manufacturing."