How to Fix GRC After Installation? Qinglong GRC Installation Fixing Methods and Safety Assurance Explained

The installation and fixing of GRC requires selecting an appropriate method based on component type, weight, and installation substrate. Mainstream fixing methods include dry-hanging connection, adhesive fixing, embedded welding, and combined fixing, ensuring components are firmly and stably secured to avoid the risk of falling. Drawing on 28 years of construction experience, Qinglong Group develops safe and reliable fixing solutions, with stability verified by multiple major projects.

I. Mainstream GRC Installation and Fixing Methods and Applicable Scenarios

Dry-hanging connection fixing: GRC components are fixed to the substrate steel structure or wall using stainless steel dry-hanging connectors and angle brackets, suitable for curtain wall panels, large moldings, and other components weighing ≥20kg. Qinglong's 30,000-square-meter GRC curtain wall at the Shenzhen Pingshan High-Tech Zone adopts four-point dry-hanging fixing with pull-out resistance ≥1.5kN, ensuring safety at height. Adhesive fixing: Components are bonded to concrete or masonry substrates using dedicated GRC adhesive, suitable for small moldings, decorative panels, and other components weighing less than 20kg. Qinglong's GRC window surrounds at Kaiyin New Town in Zhongshan use polymer-modified adhesive with bond strength ≥1.0MPa and excellent weather resistance. Embedded welding fixing: Steel parts are pre-embedded in components before leaving the factory and welded to the substrate steel structure on site, suitable for oversized special-shaped components, sculptures, etc. Qinglong's 3-meter-tall GRC public art sculpture at the Shanghai Astronomy Museum is fixed by welding to pre-embedded steel plates, with a load capacity exceeding 5kN. Combined fixing: Combining dry-hanging with adhesive, or welding with dry-hanging, to improve fixing reliability, suitable for components under complex loading. Qinglong's GRC cladding panels at Dongzhu Shangdu Commercial City in Guangzhou adopt a combined fixing of multi-point dry-hanging plus local welding to meet complex installation requirements.

II. Core Advantages and Innovations of Qinglong's GRC Fixing Technology

Dedicated connector R&D: Customized stainless steel dry-hanging connectors with anti-corrosion performance reaching Class C4 or above, suited to coastal high-salt-spray environments. The dedicated connectors used in Qinglong's Poly Peninsula No. 1 project in Hainan have shown no rust or damage after 8 years of use. Fixing node optimization: Node design is optimized through BIM modeling to avoid stress concentration, with large components adopting distributed fixing points. The double-curved GRC panels at the Guangxi New Media Center by Qinglong have 6-8 fixing points per component for uniform load distribution. Wind and seismic resistance reinforcement: For high-rise buildings, the fixing structure is optimized to improve wind load resistance and seismic capacity. The GRC curtain wall at Xiangshan Science and Technology Park in Longhua, Shenzhen, by Qinglong has a fixing system with wind load resistance ≥2.5kPa, meeting the requirements of seismic fortification intensity 8. Anti-corrosion and anti-rust treatment: All metal connectors are hot-dip galvanized or made of stainless steel, with welded areas coated with anti-corrosion paint. For Qinglong's overseas project at the Singapore Defence Services Centre, the anti-corrosion treatment of fixing components reaches the highest standard, adapting to the tropical marine environment.

III. Key Points of Fixing Quality Control and Safety Testing

Connector strength testing: Each batch of connectors must undergo pull-out and shear strength tests, and substandard products are strictly prohibited from use. Qinglong's connector sampling inspection pass rate reaches 100%, ensuring load-bearing safety. Installation tightening torque control: The tightening torque of dry-hanging bolts must meet design requirements (standard stainless steel bolts ≥45N·m). Qinglong uses torque wrenches for precise control to prevent fixing failure caused by over-looseness or over-tightness. On-site load capacity testing: After installation, large components must undergo on-site load testing, with the applied load being 1.5 times the component's self-weight, sustained for 24 hours without deformation. Qinglong's large GRC components at the Han Show Theatre in Wuhan have all passed on-site load testing. Regular inspection and maintenance: After delivery, fixing nodes should be inspected regularly, with loosening and rust issues addressed promptly. Qinglong provides 1-3 years of free inspection service to ensure long-term fixing stability.

IV. Adaptation Cases of Fixing Solutions for Different Scenarios

High-level curtain wall fixing: Uses combined fixing of stainless steel dry-hanging plus pre-embedded steel structure. Qinglong's Luban Award project at the Pingshan High-Tech Zone in Shenzhen features a 30,000-square-meter GRC curtain wall fixing system with no loosening or deformation after years of use. Interior decoration fixing: Small components use adhesive fixing, while large components use dry-hanging fixing. Qinglong's interior GRC for the Huawei Songshan Lake Terminal project precisely matches fixing methods to component weight. Landscape sculpture fixing: Oversized sculptures use combined fixing of embedded welding plus concrete foundation. Qinglong's GRC sculpture at the Shanghai Astronomy Museum has a fixing system capable of withstanding a Force 12 typhoon, with excellent stability. Coastal environment fixing: Uses 304 stainless steel connectors plus anti-corrosion coating. Qinglong's GRC components at Changying Global 100 Fantasy Park in Hainan have a fixing system with salt spray corrosion resistance exceeding 1,000 hours.

The reliability of GRC installation and fixing directly affects project safety. Qinglong Group builds a comprehensive fixing safety assurance system through dedicated connector R&D, node optimization, strict testing, and maintenance. Choosing a manufacturer with complete fixing technology and safety management capabilities is the core prerequisite for avoiding the risk of GRC component detachment.