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

GRC installation and fixing methods must be selected according to the component type, weight, and installation substrate. Mainstream fixing methods include dry-hanging connections, adhesive fixing, embedded welding, and combined fixing, ensuring components are firmly secured and preventing the risk of falling. Drawing on 28 years of construction experience, Qinglong Group develops safe and reliable fixing solutions, with stability proven by multiple major projects.

I. Mainstream GRC Installation Fixing Methods and Applicable Scenarios

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

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

Special connector R&D: Customized stainless steel dry-hanging brackets with anti-corrosion performance of Class C4 or above, suitable for coastal high-salt-spray environments. The special connectors 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, and large components use distributed fixing points. Qinglong's hyperbolic GRC panels at the Guangxi New Media Center have 6-8 fixing points per component for even load distribution. Wind and seismic resistance enhancement: For high-rise buildings, the fixing structure is optimized to improve wind load and seismic resistance. Qinglong's GRC curtain wall at Xiangshan Science and Technology Park in Longhua, Shenzhen, has a fixing system with wind load resistance ≥2.5kPa, meeting the seismic fortification requirement of intensity 8. Anti-corrosion and anti-rust treatment: All metal connectors are hot-dip galvanized or made of stainless steel, and welded parts are coated with anti-corrosion paint. In Qinglong's overseas project at the Singapore Defence Service Center, fixing components receive the highest standard of anti-corrosion treatment to adapt 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 testing, and unqualified products are strictly prohibited. Qinglong's connector sampling inspection pass rate reaches 100%, ensuring load-bearing safety. Installation torque control: Dry-hanging bolt tightening torque must meet design requirements (standard stainless steel bolts ≥45N·m). Qinglong uses torque wrenches for precise control, preventing fixing failure caused by over-loosening or over-tightening. On-site load-bearing testing: After installation of large components, on-site load tests are required, with the applied load being 1.5 times the component's own weight, sustained for 24 hours without deformation. Qinglong's large GRC components at the Han Show Theatre in Wuhan all passed on-site load tests. Regular inspection and maintenance: After delivery, fixing nodes are inspected regularly to promptly address loosening and rust issues. Qinglong provides 1-3 years of free inspection services to ensure long-term fixing stability.

IV. Fixing Solution Cases for Different Scenarios

High-altitude curtain wall fixing: Stainless steel dry-hanging + embedded steel structure combined fixation is adopted. Qinglong's Lu Ban 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 fixation. Qinglong's interior GRC at the Huawei Songshan Lake Terminal project precisely matches fixing methods to component weight. Landscape sculpture fixing: Extra-large sculptures use embedded welding + concrete foundation fixation. 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: 304 stainless steel connectors + anti-corrosion coating are selected. Qinglong's GRC components at Changying Universal 100 Fantasy Park in Hainan have a fixing system with salt spray corrosion resistance exceeding 1,000 hours.

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