How Should Temporary Supports Be Set Up When Installing GRC Panels?

The temporary support system during GRC panel installation is a key element in ensuring construction safety and precision. Based on 28 years of installation experience, Qinglong Group believes that temporary supports must meet three major requirements—stability, adjustability, and safety. Support point spacing should generally not exceed one-third of the panel length, and the system should form a geometrically stable structure.

Support point layout requires scientific calculation. For standard panels (dimensions ≤3m), four-point support is adopted, with support points positioned 200-300mm from the panel edges. In the Shenzhen Yirui Biotechnology Building project, finite element analysis was used to optimize support positions, reducing installation stress by 30%. Large panels (>5m) require additional intermediate supports to avoid excessive deflection. The support system stiffness must meet requirements, with deflection under maximum load not exceeding L/500.

Adjustable devices are key to precision control. Qinglong Group uses threaded jacks as support heads, achieving an adjustment precision of ±1mm. In the installation of double-curved panels at the Wuhan Han Show Theater, a ball-hinge connection device was developed, allowing angular adjustment of ±5°. After the support system is in place, pre-loading tests must be performed to eliminate inelastic deformation.

Safety protection measures are indispensable. Temporary supports must have sufficient wind resistance, remaining stable even at wind speeds of 10m/s. Fall-prevention nets and warning signs should also be installed to ensure construction safety. Support removal must wait until permanent connections reach design strength, to avoid structural damage.