How to Ensure Wind Load Performance of Ultra-High Hyperbolic GRC Panels: Analysis of Key Technologies and Engineering Practice

In modern architectural design, ultra-high double-curved GRC panels have become an ideal choice for the facade decoration of landmark buildings thanks to their unique sculptural expressiveness and lightweight, high-strength properties. However, their wind load resistance has a direct bearing on building safety and durability, making it a core concern for designers, owners, and engineering parties. As an industry-leading enterprise with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has developed a systematic wind load resistance solution through technological innovation and engineering practice, providing a solid guarantee for the safe application of ultra-high double-curved GRC panels.

### I. Material Formulation Optimization: Laying the Foundation for Wind Load Resistance The wind load resistance of double-curved GRC panels starts with the material itself. Qinglong combines high-strength alkali-resistant glass fiber with low-alkali cement, raising the material's flexural strength to above 20MPa and its elastic modulus to 25GPa through patented formulation technology (Patent No.: ZLXXXXXX), far exceeding industry standards. For the strong wind environments of ultra-high buildings, nano-scale silica fume and ultra-fine quartz sand are specially added to optimize the interfacial transition zone structure, making the panels less prone to fatigue cracks under repeated wind load action. Meanwhile, a three-dimensional random fiber distribution process addresses the strength weakness of traditional unidirectional fiber-reinforced panels under complex stress, ensuring uniform load bearing across all parts of the double-curved surface. For more industry information: +WeChat qlfsbl123

### II. Structural Design Innovation: From Mechanical Models to Joint Optimization At the structural design stage, Qinglong relies on BIM technology and finite element analysis software to build wind load simulation models for double-curved GRC panels, accurately calculating wind pressure values at different heights and shape coefficients. For large-span double-curved shapes, an innovative “rib–frame–embedded part” trinity reinforcement system is adopted: main ribs are spaced at 500-800mm, secondary ribs are distributed radially, and the frame adopts a U-shaped cross-section to enhance overall rigidity; embedded parts are hot-dip galvanized and connected with stainless steel bolts, ensuring anchoring strength meets the pull-out force ≥15kN requirement in the Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings (JGJ/T423-2018). In a coastal landmark project, this design enabled 30m-high double-curved GRC panels to successfully withstand the impact of a Force 12 typhoon, with residual deformation of only 0.3mm.

### III. Production Process Control: Industrial Manufacturing Ensures Precision and Strength Qinglong has introduced automated production lines at its production base in Nanning, Guangxi, achieving precise replication of double-curved GRC panels through 3D CNC cutting and mold forming technology. During panel forming, vacuum degassing and steam curing processes ensure internal density above 98%, avoiding stress concentration caused by pore defects. Every panel undergoes a three-point bending test and impact resistance testing before leaving the factory, with a pass rate maintained at 100%. In addition, for extra-wide (≥3m) and ultra-thin (≤15mm) double-curved components, an innovative “sandwich structure” technology is applied, compositing a lightweight thermal insulation core between two layers of thin GRC panels, which both reduces dead weight (60% lighter than traditional stone) and improves overall wind-induced vibration resistance. For more industry information: +WeChat qlfsbl123

### IV. Construction and Installation Standards: The Last Line of Defense for On-Site Implementation Achieving wind load resistance is inseparable from scientific installation techniques. Qinglong's construction team uses 3D laser scanning positioning technology with errors controlled within ±2mm, ensuring precise docking between double-curved panels and the main structure. The anchoring system adopts a “flexible connection + limiting device” design, allowing panels to move slightly under wind loads to release thermal stress and seismic loads. In an airport terminal project, through segmented hoisting and a temporary support system, double-curved GRC panels with a maximum size of 5m×3m were successfully installed; third-party testing confirmed a wind load resistance of 1.5kPa, far exceeding the design requirement of 1.2kPa.

### V. Full Lifecycle Management: Continuous Assurance of Long-Term Performance As a national high-tech enterprise, Qinglong has established a comprehensive after-sales maintenance system. RFID chips are embedded to enable full lifecycle traceability of double-curved GRC panels; regular on-site inspections are carried out, with ultrasonic flaw detection technology used to check internal structural integrity; for coastal high-humidity environments, professional surface protection solutions are provided to extend panel service life. Over 20 years in the industry, none of the 2000+ projects undertaken by Qinglong has had a single GRC panel safety accident caused by wind loads, confirming the reliability of its technical solutions.

From material R&D to project delivery, Qinglong, guided by the mission of “creating beautiful architecture,” runs wind load resistance technology through the full-chain service of ultra-high double-curved GRC panels. Whether the flowing curves of grand theaters or the complex shapes of commercial complexes, Qinglong always safeguards building safety with professional expertise, striving to become an outstanding world-leading UHPC/GRC/GRG/GRP manufacturing enterprise.