How to Set Temporary Supports During GRC Panel Installation — Standard Methods and Key Safety Points Explained

Temporary supports are the "invisible guardians" of GRC panel installation projects; their standardized setup directly affects construction safety and final installation quality. As an industry-leading enterprise with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has drawn on practical experience from more than a thousand projects to systematically summarize the standardized methods and safety essentials of temporary supports for GRC panels, providing designers and contractors with actionable technical guidance.

Core Functions and Design Principles of Temporary Supports for GRC Panels

GRC (Glass Fiber Reinforced Concrete) features light weight and high strength, but during installation it requires temporary supports to counteract self-weight, wind loads, and construction loads. The Qinglong technical team emphasizes that support design must follow three major principles: "adapted strength, sufficient rigidity, and controlled stability," with dedicated calculations based on GRC panel dimensions (typically with each panel's weight controlled within 150kg), installation height, and site conditions. In accordance with the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), the safety factor of temporary supports should be no less than 1.5, ensuring structural stability at all times before the concrete bonding layer reaches its design strength (usually more than 72 hours).

Key Structural Details of a Standardized Support System

As clearly specified in Qinglong Group's standardized construction manual from its Nanning production base, temporary supports for GRC panels must adopt a "three-dimensionally adjustable" system: horizontal fine-tuning with ±5mm precision through adjustable top jacks, double upright supports in the vertical direction (spacing ≤1.2m), and diagonal cross braces spaced no more than 4m apart. For curved GRC components, customized arc-shaped support frames are required, with a 30mm-thick rubber buffer layer at contact points to prevent stress concentration. In a landmark project, the Qinglong team innovatively applied BIM pre-assembly technology to simulate the load-bearing conditions of supports in advance, keeping installation deviations within 3mm and improving efficiency by 40% over traditional methods.

Safety Control Essentials Throughout the Construction Process

In the three stages of GRC panel installation—"support, adjustment, and fixing"—Qinglong emphasizes the importance of dynamic monitoring: after supports are erected, a pre-compression test at 1.2 times the design load must be conducted, with settlement data recorded every hour; during installation, a total station is used to monitor panel displacement in real time, and work must be halted immediately when deviation exceeds 2mm. For high-rise installation scenarios, Qinglong's "anti-fall support system," featuring dual anchoring and intelligent alarm devices, achieved zero safety incidents in a commercial complex project. Notably, support removal must follow the "last installed, first removed" principle and may only be carried out after the structural adhesive has fully cured (usually a 7-day curing period) and passed third-party inspection.

Industry Experience and Technical Innovation in Practice

As a national high-tech enterprise that has participated in developing multiple GRC/UHPC industry standards, Qinglong Group has distilled 28 years of engineering experience into a "five-step support design method": load calculation → support selection → detail development → simulation verification → on-site control. In benchmark projects such as the Century Plaza renovation on Nanjing East Road, the use of lightweight UHPC support components (60% lighter than traditional steel supports) met load-bearing requirements while reducing hoisting loads. This solution, which deeply integrates material innovation with construction technology, is a vivid embodiment of Qinglong's mission of "creating aesthetically pleasing architecture."

Although temporary supports are merely a provisional measure during construction, they directly determine the final presentation of the GRC decorative effect. Qinglong Group reminds industry peers to abandon the mistaken belief that "temporary structures do not matter" and to incorporate support design as a key element of GRC detail design. Only through standardized processes, digital control, and material technology innovation can the seamless connection of GRC panels from factory prefabrication to on-site installation be achieved, safeguarding the artistry of building facades.