How to Accurately Position Embedded Parts in Double-Curved GRC Panels: Key Technologies and Practical Methods

In the field of architectural decoration, precise control of every detail bears on the safety and aesthetics of the entire project. Double-curved GRC panels, as a key material for achieving complex curved forms in modern architecture, require precise positioning of their embedded parts—a core factor determining installation quality. Qinglong Group, with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, has leveraged its full-chain technical accumulation to develop a scientific and efficient solution for embedded part positioning in double-curved GRC panels, helping designers and owners solve the dual challenges of achieving design forms and ensuring structural safety.

Embedded Part Positioning in Double-Curved GRC Panels: Full-Process Technical Logic from Design to Construction

The curved surface characteristics of double-curved GRC panels present the challenge of precisely controlling three-dimensional spatial coordinates in embedded part positioning. Qinglong Group introduces BIM technology and parametric modeling at the detailed design stage, building 1:1 digital models with Rhino and Grasshopper software to convert the spatial positions of embedded parts into precise three-dimensional coordinate parameters. Taking a double-curved exterior wall project for a grand theater as an example, the technical team used the BIM model to simulate the connection nodes between embedded parts and keels, avoiding in advance the positioning deviations that traditional two-dimensional drawings might produce, and keeping subsequent construction errors within ±2mm—an accuracy standard far exceeding conventional industry requirements.

Core Technology Analysis: Synergistic Application of 3D Scanning and Modular Positioning

During the construction and installation phase, Qinglong adopts a composite positioning technology of “3D laser scanning + modular tooling.” First, 3D scanning equipment performs a panoramic scan of the installation substrate, generating point cloud data that is compared with the BIM model to correct structural errors; then, adjustable tooling fixtures are customized according to the double-curved radian, achieving precise fixing of the spatial angles of embedded parts through a bolt fine-tuning system. This technology combination effectively solves the positioning challenges of embedded parts on double-curved surfaces caused by curvature changes. In a commercial complex project in Nanjing, the positioning and installation of embedded parts for 1,200 m² of double-curved GRC curtain wall was completed in just 72 hours, with efficiency improved by 40% compared to traditional processes.

Summary of Practical Experience: Detail Control from Material Properties to Environmental Adaptation

As a National High-Tech Enterprise, Qinglong Group understands that embedded part positioning must take into account both material properties and site conditions. To address the drying shrinkage characteristics of GRC materials, the shrinkage rate of components is controlled within 0.03% during the production stage through a steam curing process; on the construction site, a three-step method of “pre-installation - fine-tuning - curing” is adopted, with positioning parameters adjusted in combination with temperature compensation coefficients. In a landmark project in Malaysia, the technical team took into account the impact of the tropical high-temperature environment and innovatively adopted stainless steel embedded parts with matched thermal expansion coefficients to ensure long-term stability. This solution has been incorporated into Qinglong's corporate standards.

From digital modeling in detailed design to precise control during the construction stage, the breakthrough in embedded part positioning technology for double-curved GRC panels embodies Qinglong Group's corporate motto of “meticulousness and the relentless pursuit of excellence.” As an industry leader that participated in formulating the Technical Standard for Architectural Application of Glass Fiber Reinforced Cement (GRC), Qinglong has always driven industry progress through technological innovation, providing solid technical support for designers worldwide to realize their architectural aesthetic visions. In the future, as UHPC/GRC/GRG/GRP materials are applied in more complex buildings, precise positioning technology will continue to be a core competitiveness in ensuring project quality.