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

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

Safe Arrival, Quality Intact: Professional Solutions for Transport Fixing of Large-Size GRC Panels

In the field of modern architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its lightweight, high-strength and richly formable characteristics, has become the preferred material for exterior wall cladding panels and decorative components in high-end projects such as grand theaters, commercial complexes and landmark buildings. However, large-size GRC panels (usually referring to components longer than 6 meters or heavier than 500 kg) are prone to damage and deformation during transport due to their large volume and high brittleness, directly affecting project schedules and engineering quality. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has drawn on the practice of hundreds of large-scale projects to develop systematic transport fixing solutions and a safety assurance system, providing professional references for the industry.

I. Transport Pain Points and Fixing Principles for Large-Size GRC Panels

The transport risks of large-size GRC panels mainly stem from their physical characteristics: heavy self-weight but hollow structure, with edges and corners prone to knocking; surface decorative layers (such as stone-like textures and painted coatings) sensitive to vibration and compression; and complex load-bearing points for irregular components (such as double-curved surfaces and openwork shapes). Transport fixing must follow three core principles: rigid fixing to prevent displacement (using custom brackets and fastening devices to restrict component movement), flexible cushioning to prevent impact (absorbing transport bump energy through elastic materials), and balanced load-bearing to prevent deformation (designing support points according to the component's center-of-gravity distribution). For example, in a convention and exhibition center project in Nanning, the Qinglong team innovatively adopted a “honeycomb cushioning bracket + four-point synchronized fastening” scheme for 8-meter-long curved GRC exterior cladding panels, reducing the transport damage rate from the industry average of 3% to below 0.5%.

II. Key Technologies and Implementation Steps for Transport Fixing

1. Customized Packaging Design: Based on the dimensions, shape and surface treatment processes of GRC panels, a “triple-protection packaging” system is adopted—the inner layer uses EVA foam to wrap edges and corners (scratch protection), the middle layer lays pearl cotton cushioning (vibration protection), and the outer layer uses a galvanized steel frame for reinforcement (compression protection). For extra-wide components (e.g., wider than 2.4 meters), a detachable splicing frame must be designed to ensure compliant loading on transport vehicles.

2. Modular Fixing Solution: Low flatbed trailers are selected as transport vehicles, with anti-slip rubber mats laid on the vehicle bed, using a combined method of “L-shaped angle steel limiting + steel band diagonal tension fixing.” Qinglong's self-developed patented fixing device (Patent No. ZL2023XXXXXXXXX) enables “one panel, one fixing,” precisely controlling fastening force through adjusting screws to avoid component cracking caused by overtightening.

3. Dynamic Monitoring and Emergency Measures: During transport, GPS positioning and three-axis acceleration sensors are used to monitor vehicle bumping in real time, automatically issuing alerts when vibration exceeds the safety threshold (±3g). Meanwhile, an emergency toolbox is carried on board, containing epoxy resin repair agents, stainless steel clamps and other items, enabling on-site treatment of minor damage.

III. Building a Full-Chain Safety Assurance System

Qinglong Group incorporates transport safety into full-chain management spanning “detailed design–manufacturing–logistics–on-site installation”: In the design phase, BIM technology simulates transport conditions to optimize component segmentation and lifting hole positions; in the production phase, a “pre-reinforcement process” embeds glass fiber reinforcement bars inside GRC panels; in the logistics phase, cooperation with professional heavy-cargo transport companies provides certified escorts and custom transport routes (avoiding bridge height limits and sharp curves). In addition, all transport vehicles are covered by cargo transport insurance with coverage equal to the full value of the components, providing double protection for customers.

As a national high-tech enterprise and a participating developer of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group has always maintained a meticulous, excellence-driven attitude, embedding the safety concept throughout the entire life cycle of GRC material application. From the irregular GRC curtain wall of the Dongguan Women and Children's Activity Center to the translucent concrete project at Century Plaza on Nanjing East Road, Qinglong's comprehensive transport fixing solutions and safety assurance measures ensure the “zero-damage” delivery of every GRC component from factory to site, safeguarding the realization of architectural aesthetics. In the future, Qinglong will continue to explore intelligent transport technologies, such as introducing unmanned escort systems and AI damage early-warning algorithms, driving the upgrading of logistics standards in the GRC industry.