Principles and Application Research of Digital Mold Technology for Double-Curved GRC Shapes

As architectural aesthetics and engineering technology collide in the digital era, double-curved GRC forms are reshaping city skylines with their unique curved rhythms. As an industry participant with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has witnessed how digital mold technology has broken through the bottlenecks of traditional craftsmanship, achieving a perfect fusion of "millimeter-level precision" and "artistic-level shaping" on building skins.

Double-Curved GRC Digital Molds: A Technological Revolution from Drawings to Reality

Traditional production of double-curved GRC components often faces pain points such as long mold-making cycles, low shaping precision, and difficult cost control. Digital mold technology, through the deep synergy of 3D scanning, parametric design, and CNC machining, has established a completely new production paradigm. Taking a double-curved curtain wall project at a cultural center as an example, the parametric model built with Rhino and Grasshopper enables real-time adjustment and optimization of curved forms. Combined with modular molds produced on large five-axis machining centers, the production cycle for a single mold set was shortened by 40%, with shaping errors controlled within ±2mm, perfectly reproducing the flowing curves envisioned by designers.

Core Technical Principles: Cracking the Double-Curve Challenge from Three Dimensions

At the geometric analysis level, the double-curved surface is decomposed into quantifiable UV meshes, and mechanical simulation models are built based on GRC material properties to ensure the match between mold stiffness and component loading. In terms of material adaptation, addressing the flowability and shrinkage characteristics of glass fiber reinforced concrete, digital molds adopt a variable-angle core-pulling design, combined with Qinglong's self-developed low-alkalinity cement formulation, effectively solving bubble and cracking issues in curved components. In production coordination, full-process involvement of BIM technology achieves a digital closed loop from design drawings and mold machining to on-site installation. In one landmark project, comparing the BIM model with on-site 3D scanning improved the installation efficiency of more than 3,000 double-curved GRC components by 35%.

Industry Applications: Aesthetic Practices from Cultural Landmarks to Commercial Spaces

Digital mold technology is redefining the application boundaries of GRC materials. In the Dongguan Women and Children's Activity Center project, the double-curved honeycomb exterior wall created by the Qinglong team using this technology not only earned certification from the AALBORG WHITE Cup GRC Construction Engineering Innovation Award, but also achieved a structural optimization of 15% weight reduction per square meter. In the commercial complex sector, a project using a double-curved sunshade system produced with digital molds reduced building energy consumption by 22% through parametric adjustment of surface curvature, confirming the deep integration of technology and green building. Notably, this technology also demonstrates strong adaptability in GRG interior ceilings and GRP light-transmitting components, providing integrated solutions for complex space decoration.

As an enterprise that participated in drafting the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC), Qinglong Group has always believed that digital mold technology is not merely an innovation in production tools, but a liberator of material aesthetics. When 58 patented technologies meet 28 years of engineering experience, and when the innovation capabilities of a national-level R&D center combine with a production network spanning the whole country, double-curved GRC forms are gradually evolving from the exclusive domain of a few landmark buildings into a universal choice for enhancing architectural expression. In the future, with the deep integration of 3D-printed molds and AI parametric optimization, Qinglong looks forward to exploring more "impossible" architectural forms together with designers and owners, turning every double-curved line into a dance between technology and art.