Reinforcement Measures and Key Application Points for Hollowed-Out GRC Shapes

Breaking form boundaries through technological innovation, safeguarding architectural aesthetics with scientific solutions — the symbiosis of safety and art in perforated GRC

In contemporary architectural design, perforated GRC has become a key material for shaping the artistic character of the building envelope, thanks to its light, translucent visual effect and exceptional sculptural plasticity. However, the mechanical challenges and installation risks posed by perforated structures have always been a core concern for designers and engineering teams. As an industry-leading enterprise with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group draws on the practice of hundreds of landmark projects to provide an in-depth analysis of the reinforcement technologies and application essentials of perforated GRC, delivering systematic solutions for the industry from design to implementation.

I. Structural Reinforcement of Perforated GRC: From Material Formulation to Process Innovation

The core technical challenge of perforated GRC lies in balancing design complexity with structural stability. Qinglong solves this problem through three key reinforcement approaches: first, material system optimization, combining high-elastic-modulus glass fiber with low-alkali cement, together with specialized additives to enhance interfacial bond strength, pushing the flexural strength of components beyond 20MPa; second, structural topology design, using parametric software to simulate stress distribution and placing concealed rib beams in perforated areas — for example, in a cultural center project, a honeycomb support structure optimized with Grasshopper reduced weight by 30% compared with conventional design while maintaining load capacity; third, forming process upgrades, combining vacuum infusion with steam curing to ensure the density and uniformity of thin-walled perforated components (minimum thickness down to 8mm).

II. Installation Engineering of Perforated GRC: Precision Control and Safety Redundancy

Complex perforated forms place stringent demands on installation precision. Qinglong innovatively adopts a "3D pre-assembly + laser scanning positioning" technology, completing 1:1 simulated installation in the factory and keeping on-site splicing errors within ±2mm. To address high-altitude installation risks, a dedicated adjustable anchoring system was developed, combining expansion bolts with stainless steel connectors to achieve safety redundancy in areas with a seismic fortification intensity of 8. In a commercial complex project, a 3,000㎡ perforated GRC curtain wall achieved precise connection with the main structure through BIM technology, improving installation efficiency by 40% and passing verification by 15-year wind pressure testing.

III. Application Scenarios of Perforated GRC: From Art Installations to Building Envelopes

The application of perforated GRC has expanded from traditional European-style components to diverse fields: in the Dongguan Women and Children's Activity Center project, the Qinglong team combined light-transmitting GRC with perforated patterns to create an envelope effect with shifting light and shadow by day and brilliant illumination by night; the "Eye of the City" form of a landmark building achieved a structural cantilever at a height of 75 meters through double-curved perforated GRC. Notably, in the field of landscape architecture, perforated GRC benches, screens and other features achieve organic integration with the natural environment through texture design while meeting ergonomic requirements.

As an enterprise that participated in drafting the "Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC)", Qinglong has always taken "creating aesthetically beautiful architecture" as its mission, transforming 28 years of technical accumulation into implementable solutions. The technological breakthroughs of perforated GRC represent not only innovation in materials and processes, but also a perfect balance between art and engineering. In the future, as UHPC and GRC composite technologies develop, Qinglong will continue to advance perforated forms toward greater lightness, complexity and durability, offering designers unlimited creative possibilities.