Discussion on Transportation Fixing Methods and Safety Assurance Measures for Large-Size GRC Panels

Discussion on Transport Fixing Methods and Safety Assurance Measures for Large-Size GRC Panels

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its lightweight, high-strength and richly sculptural characteristics, has become the preferred material for exterior wall decoration of high-end buildings such as grand theaters and commercial complexes. However, large-size GRC panels (usually referring to components longer than 6 meters or larger than 10㎡ in area) are highly prone to damage or safety accidents during transportation due to their self-weight, dimensions and brittleness. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group, drawing on the practice of hundreds of large projects, has developed a systematic solution spanning transport fixing technology, safety control systems and full-process services, providing the industry with an implementable practical paradigm.

I. Core Technical Points of Transport Fixing for Large-Size GRC Panels

The transport fixing of large-size GRC panels must achieve the dual objectives of "deformation prevention" and "impact resistance". Through material property analysis and structural mechanics calculations, Qinglong has innovatively adopted a composite fixing method of "three-dimensional positioning + elastic cushioning". During loading, high-strength steel frame supports are first custom-made according to the curvature radius (as small as 300mm) and weight of the GRC panels, with 50mm thick EVA cushioning cotton laid at the contact points between the supports and the components to prevent surface cracking caused by rigid collision. For hyperbolic special-shaped panels, 3D scanning positioning technology is used to pre-set adjustable positioning devices on the supports, ensuring that the gap error between components and supports is ≤2mm, effectively controlling the shaking amplitude during transportation.

In terms of fixing methods, unlike traditional single strapping, Qinglong has developed a "flexible restraint system": polyester industrial webbing (breaking strength ≥50kN) with rotatable buckles is used laterally, while hydraulic buffers are installed longitudinally to automatically release force when transport acceleration exceeds 0.5g. In a landmark project, a single-curvature GRC exterior wall panel weighing 2.8 tons was transported 1,200 kilometers using this system, with the arrival damage rate controlled below 0.3%, far lower than the industry average of 3%.

II. Building a Full-Process Safety Assurance System

The core of safety assurance lies in "full-chain controllability". Qinglong has established a three-level control mechanism from production off-line to on-site reception: before leaving the factory, each GRC panel is affixed with an RFID chip recording the component number, weight, transport direction and other information, combined with QR codes for full-process traceability; during transportation, the GPS positioning system monitors vehicle speed in real time (≤80km/h on expressways, ≤60km/h on national highways) as well as cabin temperature and humidity (maintained at 5-35℃, humidity ≤70%), with abnormal conditions automatically triggering alerts.

For extreme weather, Qinglong has formulated special contingency plans: in heavy rain, waterproof tarpaulins plus water-absorbing cotton provide dual protection; in winter low-temperature environments, temperature control devices are arranged inside the cabin to ensure that the strength of GRC panels is not affected by sudden temperature changes. In addition, each vehicle is staffed with 2 certified escorts holding GRC component transport special operation certificates and equipped with skills in emergency reinforcement and damage emergency handling, forming a triple safety barrier of "technology + personnel + system".

III. Resolving Industry Pain Points and the Value of Technological Innovation

Currently, the transportation of large-size GRC panels generally faces three major pain points: component deformation caused by traditional fixing methods (accounting for 62% of damage causes), low transport efficiency (single loading capacity only 60% of the optimized solution), and ambiguous definition of responsibility. Qinglong uses BIM technology to simulate transport conditions in advance, optimizing loading schemes to increase space utilization by 40%; it adopts a "transport responsibility statement" system to clarify the responsibility nodes of the three parties—production, logistics and reception—supplemented by tamper-proof markings on component surfaces, effectively resolving disputes.

As a participating formulator of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong has incorporated transport fixing technology into its enterprise standard Q/QL 008-2023, of which 6 technologies, including the "Specification for Selection of Elastic Cushioning Materials" and the "Fixing Process for Special-Shaped Components", have been included in industry guidelines. From the hyperbolic GRC curtain wall of the Nanning ASEAN Culture and Art Center to the super-long large panel transportation for a commercial complex in Singapore, Qinglong has verified through 28 years of engineering experience that a scientific transport fixing solution can not only reduce logistics costs by 15-20%, but also provide a critical guarantee for project schedules.

The transport safety of large-size GRC panels is a comprehensive reflection of material performance, engineering management and technological innovation. Qinglong Group has always taken "creating beautiful architecture" as its mission, transforming the transportation stage into a key node of quality assurance through its full-chain service capabilities in deepened design, manufacturing, construction installation and after-sales maintenance. In the future, with the expanding application of UHPC/GRC composite panels, Qinglong will continue to drive the iterative upgrading of transport technology, providing the industry with safer and more efficient solutions and contributing to the perfect presentation of architectural decoration art.