Temporary Supports for GRC Panel Installation: Scientific Setup to Ensure Installation Safety and Precision

Temporary supports for GRC panel installation are a key safeguard for construction safety and precision. Especially for large-sized and specially shaped GRC panels, improper temporary support setup can easily cause installation misalignment and component damage. Qinglong Group, which undertook the double-curved surface GRC installation project for the Guangxi New Media Center, has developed a standardized temporary support setup plan over 28 years, ensuring a safe and orderly installation process.

Temporary supports must bear the dead weight and construction loads of GRC panels before the panels are installed, fixed, and structurally stable, so the setup must balance load-bearing capacity, stability, and operability. Through BIM technology simulation and on-site practical verification, Qinglong has developed a comprehensive support setup system.

Core Principles of Support Setup: Safety First, Controlled Precision

Supports must meet load-bearing requirements, with a load capacity of no less than 1.5 times the dead weight of the GRC panels to prevent support instability. Support points should be evenly distributed with spacing of ≤1.2m, positioned near component corners and stress concentration areas to ensure uniform load distribution. Support height should be adjustable to facilitate adjustment of the GRC panels' installation elevation and flatness, with errors controlled within ±2mm. In the Poly Peninsula No.1 project in Hainan, Qinglong strictly followed these principles, and the installation precision of the double-curved surface GRC panels fully met the standards.

Support Types and Application Scenarios: Choose as Needed to Fit Different Components

Full scaffolding support is suitable for large-area, continuous GRC curtain walls and ceilings, using steel pipe full scaffolding with ledger spacing ≤1.8m and vertical pole spacing ≤1.5m, with scaffold boards laid as working platforms. Independent bracket support is suitable for individual large-sized GRC panels, using adjustable steel brackets with firmly fixed bottoms and rubber pads on top to avoid damaging components. In the installation of GRC sculptures at the Shanghai Astronomy Museum, Qinglong adopted independent bracket support to precisely adjust the sculptures' positions and angles.

Timing of Support Removal: Remove Only After Structural Stability Is Ensured

Removal should be carried out only after GRC panel installation and fixing are complete and the adhesive and sealant have reached design strength (usually 24-48 hours). The removal sequence follows the principle of "top first, bottom later; non-load-bearing first, load-bearing later" to avoid component displacement caused by forcible removal. Qinglong specifies removal conditions and procedures in its installation manual and arranges professional personnel on site for guidance. In the Pingshan High-tech Zone Comprehensive Service Center project in Shenzhen, it ensured that GRC panels showed no deformation or loosening after support removal.

The scientific setup of temporary supports for GRC panel installation is a dual safeguard for construction safety and installation precision. Over 28 years, Qinglong has always adhered to the principles of "standardized setup, customized adaptation, and safe removal". Through BIM simulation, standardized procedures, and professional guidance, it builds a solid safety line for every GRC panel installation project. Although temporary supports are merely a temporary construction measure, they directly affect project quality and safety, demonstrating Qinglong's professional strength in full-process control.