How to Set Temporary Supports During GRC Panel Installation: Key Techniques and Specification Requirements Explained

In GRC panel installation projects, the temporary support system acts like an “invisible skeleton”—it is both a critical barrier for construction safety and the technical core ensuring precise positioning of components. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group systematically analyzes the underlying logic and implementation path of temporary support setup from three dimensions—regulatory requirements, technical key points, and engineering practice—providing designers and construction teams with practical, professional solutions.

Regulatory Requirements for Temporary Support of GRC Panels: From the Standard Framework to the Safety Baseline

Temporary support setup must strictly follow the core requirements of the “Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC)” (JGJ/T423-2018). The design load must cover the combined action of GRC panel self-weight, construction live load, and wind load, with a safety factor of no less than 1.5. During the detailed design phase, Qinglong Group uses BIM technology to simulate the load-bearing state of supports, and through parametric modeling ensures that the load transfer path of each support point is clear and controllable. For GRC curtain wall panels taller than 6 meters, the support system must also pass third-party structural safety verification—a process that has become standard practice for Qinglong’s large-scale projects.

Technical Key Points of the Support System: Material Selection and Joint Construction

The selection of temporary support materials directly affects system stability. Qinglong’s engineering team recommends Q235B steel for support frames; with a yield strength of 235MPa and M20 high-strength bolt connections, it can effectively resist lateral displacement during construction. As for joint construction, given the brittle nature of GRC panels, 5mm-thick chloroprene rubber gaskets must be installed at support contact areas, which both prevents stress concentration from cracking the panel surface and absorbs construction tolerances through elastic buffering. For double-curved GRC components, Qinglong’s original “three-dimensionally adjustable support head” enables ±50mm fine adjustment along the X/Y/Z axes, ensuring precise alignment of complex shapes.

Dynamic Management During Construction: Full-Process Control from Installation to Removal

The setup of temporary supports must be deeply coordinated with the GRC panel installation sequence. Qinglong’s construction specifications require that when a single GRC panel is installed, no fewer than 3 support points should be arranged around it to form a stable triangular load-bearing system; when multiple panels are installed in succession, support spacing must be kept within 1.2 meters, and lateral diagonal braces must be used to prevent overall overturning. Removal must follow the “staged unloading” principle, gradually releasing stress with hydraulic jacks, with daily unloading not exceeding 20% of the total load—a technique successfully verified in the Nanjing East Road Century Plaza renovation project.

As a national high-tech enterprise and a participant in developing GRC industry standards, Qinglong Group has always regarded temporary support technology as a key link in GRC project quality control. From material selection to construction methods, from static design to dynamic monitoring, every detail embodies 28 years of accumulated engineering experience. Looking ahead, Qinglong will continue its mission of “creating beautiful architecture,” driving the standardization and refinement of GRC installation techniques through technological innovation, and providing safe and reliable technical support for more landmark projects.