How should temporary supports be set up during GRC panel installation?

In GRC panel installation construction, the scientific arrangement of temporary supports is a key link in ensuring construction safety and component stability. As an industry-leading enterprise with 28 years of experience in detailed design, manufacturing, and construction of UHPC/GRC/GRG/GRP materials, Qinglong Group has summarized a systematic temporary support solution for GRC panels based on the practice of hundreds of large-scale projects, providing professional technical support for designers, owners, and contractors.

As a glass fibre reinforced concrete product, GRC panels offer the advantages of light weight, high strength, and flexible shaping, and are widely used as exterior wall cladding panels and decorative components in high-end projects such as grand theatres, commercial complexes, and landmark buildings. However, since they must bear self-weight, wind loads, and construction loads during installation, the temporary support system must meet the triple requirements of load-bearing capacity, rigidity, and stability. The Technical Standard for Building Application of Glass Fibre Reinforced Cement (GRC) (JGJ/T423-2018), which Qinglong Group participated in formulating, clearly stipulates that temporary supports shall be specially designed according to component dimensions, weight, and installation height, and must pass structural force verification.

Core Design Points of Temporary Supports for GRC Panels

The arrangement of temporary supports must follow the principle of "adapting to site conditions and precise load bearing". For conventional flat-panel GRC components, the Qinglong technical team recommends an adjustable steel bracket system with support point spacing of no more than 1.2 meters, and at least 3 evenly distributed support points per panel to ensure balanced load transfer. For special-shaped curved GRC components, such as double-curved curtain wall panels or openwork relief components, customized support frames are required, using 3D scanning technology to achieve precise fitting between the support surface and the component's curved surface, avoiding cracking caused by stress concentration. In a convention and exhibition center project, Qinglong used BIM technology to simulate support forces, controlling support errors within ±2mm and ensuring the smooth installation of 8,000 square meters of double-curved GRC curtain wall.

Professional Selection of Support Materials and Joint Construction

The selection of support materials directly affects system safety. Qinglong Group recommends Q235B grade steel as the main support structure, supplemented with high-strength bolt connections of Φ16mm or above, ensuring joint shear strength of no less than 150MPa. At contact areas with GRC panels, 50mm thick elastic cushion pads should be installed to prevent surface damage to components caused by rigid contact. For cantilevered GRC components exceeding 10 meters in height, additional diagonal stabilizing supports are required, with inclination angles controlled between 45°-60°, and the connection joints with the main structure must undergo anti-pullout verification. For more industry information: +WeChat qlfsbl123

Dynamic Management and Acceptance Standards During Construction

The erection and removal of temporary supports must strictly follow the construction process. Qinglong's construction specifications require: after the support system is erected, a static load test at 1.2 times the design load must be conducted, and GRC panel installation can proceed only if no plastic deformation occurs after 1 hour of load holding; during installation, support settlement should be monitored in real time, with allowable deviation not exceeding 3mm. The removal stage must adopt a "zoned and segmented, symmetrical unloading" approach, and one-time overall removal is strictly prohibited. In a museum project, Qinglong used an intelligent monitoring system to track support stress changes in real time, ensuring the safe positioning of GRC relief components weighing up to 5 tons.

As a national-level high-tech enterprise and a formulator of GRC industry standards, Qinglong Group always places construction safety and engineering quality first. As the "lifeline" of GRC panel installation, the technical plan for the temporary support system must be formulated comprehensively in consideration of material properties, structural forms, and site conditions. With its full-chain service advantages, Qinglong can provide customers with one-stop solutions from detailed design and support plan optimization to on-site guidance, helping to achieve safe and efficient construction of GRC architectural decoration. For more industry information: +WeChat qlfsbl123