How to Set Up Temporary Supports During GRC Panel Installation? Temporary Support Standards and Safety Assurance

During GRC panel installation, temporary supports are key to ensuring construction safety and installation accuracy. Improper support setup can easily cause panel deformation or falling, leading to safety accidents. A scientific support plan should be developed based on panel dimensions, weight, and installation scenarios. Drawing on its experience from the Shenzhen Pingshan High-tech Zone Comprehensive Service Center project, Qinglong analyzes the core specifications.

I. Core Principles for Temporary Support Setup

Support setup must follow four major principles: "safe and stable, evenly loaded, easy to adjust, and scenario-adapted". Safe and stable: the support system must be able to bear at least 1.5 times the weight of the GRC panel, ensuring no risk of slipping or overturning; evenly loaded: each panel must have no fewer than 3 support points, with support spacing ≤1.2m to avoid localized compression deformation; easy to adjust: support height should be fine-adjustable (adjustment range ±50mm) to facilitate panel positioning and flatness calibration; scenario-adapted: differentiated support plans should be adopted for indoor installation and outdoor high-altitude installation, with additional fall-prevention measures for high-altitude work.

II. Material Selection and Structural Design of Temporary Supports

Materials and structure must meet GRC panel installation requirements. For support materials, aluminum alloy or shaped steel brackets are preferred, as they are lightweight and high-strength; avoid wooden brackets (limited load capacity and prone to deformation). For support structure, standard flat panels use adjustable independent brackets with rubber pads on top of the brackets to avoid damaging the panel surface; large panels (length >4m) or irregular-shaped panels use a "main bracket + auxiliary bracket" combination, with main bracket spacing ≤1m and auxiliary brackets reinforcing the edges and middle; for high-altitude installation (height >5m), scaffolding or suspended platforms must be used, with brackets firmly connected to the main structure. In the double-curved panel installation at the Guangxi New Media Center, Qinglong used custom shaped steel brackets to ensure safety.

III. Temporary Support Setup Plans for Different Scenarios

Set up supports precisely according to the installation scenario to avoid risks. Indoor partition wall installation: use adjustable floor-standing brackets with support points located at the bottom 1/3 of the panel, spaced 800-1000mm apart, and add temporary supports at panel joints; exterior wall dry-hanging installation: use cantilever brackets or hangers in combination with supports, fixing brackets to the main keels, with at least 2 support points per panel to ensure stability during installation; ceiling panel installation: use full scaffolding plus adjustable top props, with prop spacing ≤1.2m and flexible buffer pads between props and panels to avoid crushing the surface. In the ceiling project of the Jiaxing Zhongguancun Shopping Center, Qinglong achieved precise installation with this plan.

IV. Construction Control and Removal Key Points for Support Setup

Standardize construction and removal procedures to ensure safety and quality. Installation control: after supports are installed, a load-bearing capacity test is required—apply a load of 1.5 times the panel weight, and the result is qualified if no deformation occurs after 30 minutes of load holding; after the panel is in place, adjust the support height to ensure surface flatness ≤0.5mm/m and uniform joint gaps; removal timing: supports may only be removed after GRC panel connectors are fully fixed and the sealant has cured to standard (usually cured for more than 24 hours); early removal is prohibited; removal sequence: follow the principle of "non-load-bearing areas first, then load-bearing areas; outer side first, then inner side", unloading slowly to avoid impact. Qinglong has established a dedicated construction plan for temporary supports to ensure zero safety accidents during the installation process.