What Are the Transport Fixing Methods for Large-Size GRC Panels?

The transportation and fixing of large-size GRC panels (usually referring to single panels with an area >5㎡ or length >3m) must follow the principles of "deformation prevention, breakage prevention, and slip prevention". Core methods include "custom bracket fixing, flexible strapping, zoned support, and professional loading/unloading". Through customized transportation solutions, Qinglong has reduced the transportation breakage rate of large-size GRC panels to 0.3%, achieving safe transportation for projects such as the Hainan International Convention and Exhibition Center and the Guangxi New Media Center.

1. Custom Bracket Fixing: Core Load-Bearing Guarantee

Custom brackets are the foundation for transporting large-size panels. Bracket design: A steel structural frame (Q235B material) is customized according to panel dimensions, with internal layered partitions (spacing ≥200mm); the partition surfaces are pasted with 10mm thick rubber pads to avoid extrusion. Qinglong brackets have a layered load capacity ≥100kg/㎡ and deformation ≤1mm. Panel fixing: Each panel is independently fixed inside the bracket with adjustable buckles (spacing ≤800mm) to avoid shaking during transportation; Qinglong buckles are made of hard rubber that does not damage the panel surface. Bracket strength: The bracket is reinforced as a whole, with anti-slip feet at the bottom, so there is no bracket displacement while the transport vehicle is moving. Qinglong brackets have passed load tests and can withstand 3g acceleration impact, meeting long-distance transportation requirements.

2. Flexible Strapping and Zoned Support: Auxiliary Fixing Protection

Flexible strapping and zoned support prevent slipping and breakage. Flexible strapping: Nylon slings or packing straps with a width ≥80mm are used, with transverse strapping spacing ≤600mm and 2-3 longitudinal straps; the strapping force is moderate (based on no panel slipping), and Qinglong strictly prohibits direct strapping with steel wire ropes to prevent surface crushing. Zoned support: Dedicated support blocks (rubber material) are placed at weak parts of panels (such as hollowed-out areas and corners), with support point spacing ≤500mm; for Qinglong's large-size roof GRC panels at the Hainan International Convention and Exhibition Center, 3 additional support points were added at hollowed-out areas to avoid deformation. Surface protection: Panel surfaces are covered with PE protective film (thickness ≥0.15mm), and anti-collision strips (thickness ≥30mm) are added at edges and corners; Qinglong anti-collision strips have a wrapping range ≥100mm, leaving edges and corners free of collision damage.

3. Professional Loading/Unloading and Transportation Details: Full-Process Protection

Loading/unloading and transportation details avoid secondary damage. Loading/unloading method: Vacuum suction cup lifting devices (suction force ≥0.15MPa) or forklifts (equipped with dedicated fork covers) are used; manual direct handling is strictly prohibited. Qinglong vacuum suction cup lifting devices have a suction area ≥40% of the panel area, ensuring smooth lifting. Vehicle selection: Flatbed trucks (cargo compartment flatness ≤2mm/m) equipped with shock absorption devices are selected; Qinglong transport vehicles use air suspension to reduce bumps and impacts. Transportation specifications: Speed ≤30km/h on urban roads and ≤70km/h on expressways, slowing down when turning or braking; Qinglong transport drivers are professionally trained and familiar with precautions for large-size panel transportation. On-site storage: After arriving on site, panels are stored on flat, solid ground, elevated ≥500mm at the bottom, with an inclination angle ≤10°; Qinglong sets up shading canopies at on-site storage areas to avoid sun exposure and rain. Project cases: The 6m×3m double-curved GRC panels at the Guangxi New Media Center used custom steel structural brackets + vacuum suction cup loading/unloading + flexible strapping, with a transportation breakage rate of 0; the 120,000㎡ of large-size roof GRC panels at the Hainan International Convention and Exhibition Center, through zoned support + professional transportation, showed no deformation or damage after installation.