How to Ensure Structural Stability of Large-Span GRC Shapes?

How can large-span GRC shapes ensure structural stability? This is a core pain point shared by designers and project owners of many landmark buildings and commercial complexes when adopting GRC (glass fibre reinforced concrete) shaped decorative components. As an industry manufacturer with 28 years of full-chain GRC service experience, Qinglong has summarized a practical stability assurance system through the implementation of nearly a thousand large-span GRC projects, safeguarding both project safety and design outcomes.

First is the structural simulation during the preliminary detailed design stage, which is the core prerequisite for the stability of large-span GRC shapes. Many projects develop structural hazards later on, often because the design stage focused only on the expressiveness of the shape while neglecting the mechanical load distribution of the GRC components themselves. Qinglong's technical team uses parametric design tools to perform stress simulations on GRC components with spans exceeding 3 meters, pre-embedding high-strength glass fibre bars inside the components and adding stiffening ribs in advance. Meanwhile, based on parameters such as the self-weight, wind load, and thermal stress of large-span components, the position and density of anchoring points are optimized to avoid localized overload issues later. This is also a large-span component design specification requirement prominently incorporated when we participated in drafting the "Technical Standard for Architectural Application of Glass Fibre Reinforced Cement (GRC)". For more industry information: +WeChat qlfsbl123

Next is material performance control during production, which solidifies the foundation of structural stability at the source. Inferior GRC components often suffer from substandard glass fibre content and inadequate curing, leading to strength degradation under long-term outdoor use—with the risk further amplified for large-span components. The flexural strength of Qinglong GRC products is consistently maintained above 20MPa. During production, the glass fibre addition ratio and matrix mix proportions are strictly controlled, and every batch of components undergoes sampling tests for weather resistance and strength. In addition, an integrated casting process is applied to large-span components to avoid structural weak points caused by splicing, ensuring that the mechanical performance of the components themselves meets design requirements.

Finally, precision installation and a full-cycle maintenance mechanism add dual protection for structural stability. The installation of large-span GRC components adopts 3D laser scanning positioning technology to ensure the connection accuracy between anchoring points and the base structure, along with a modular, step-by-step installation process in which a load verification is performed after each installation segment to prevent structural deviation caused by cumulative errors. After project delivery, Qinglong also provides long-term after-sales maintenance services, regularly inspecting the anchoring points and load-bearing joints of large-span components to promptly eliminate potential hazards. For more industry information: +WeChat qlfsbl123