Research and Practice on Transportation Fixing Methods for Ultra-Thin UHPC Panels (≤20mm)

Millimeter-Level Precision Protection: 28 Years of Industry Experience Forge a Safe Transport Defense Line for Ultra-Thin UHPC Panels

In the field of architectural decorative materials, ultra-high performance concrete (UHPC) has become a favorite of landmark buildings thanks to its outstanding mechanical properties and design freedom. Among its products, ultra-thin UHPC panels with a thickness of ≤20mm are widely used in curved curtain walls, irregular decorative features and other scenarios due to their lightweight advantages. However, such components are as thin as cicada wings yet highly valuable, and the risk of damage during transport has long been an industry pain point. As a full-chain service provider with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has drawn on the practice of hundreds of large projects to build a systematic transport fixing solution based on material characteristics, providing a replicable technical paradigm for the industry.

I. Unique Challenges of Transporting Ultra-Thin UHPC Panels

Although ultra-thin UHPC panels (≤20mm) offer ultra-high performance with compressive strength ≥150MPa, their thin panel structure faces three core challenges in transport: first, elastic deformation caused by self-weight, as long-distance jolting easily warps panel surfaces; second, stress concentration at edges and corners, where conventional fixing methods easily cause edge chipping; third, surface decorative layers (such as stone-imitation textures and metal coatings) are prone to friction damage. A convention and exhibition center project once saw 30% of its components suffer surface scratches due to traditional strapping methods, directly causing economic losses at the million level. Through material mechanics simulation and calculation, Qinglong's technical team found that when transport acceleration exceeds 0.3g, the deflection of a 20mm thin panel exceeds the safety threshold, which requires the fixing solution to provide dual protection of "rigid constraint + flexible cushioning".

II. Innovative Practice of the Four-Dimensional Fixing System

Based on 28 years of engineering experience, Qinglong developed a transport fixing system of "custom pallets + modular clamps + intelligent monitoring". In the Nanjing East Road Century Plaza renovation project, this system successfully ensured zero-damage transport of 1200 light-transmitting thin UHPC panels (18mm thick). The core technologies include:

**1. Bionic Shock-Absorbing Pallet Design**: Adopts a composite structure of a honeycomb EVA cushioning layer and a glass fiber reinforced plastic (GRP) frame, with support point distribution optimized through ANSYS simulation to keep single-point pressure within 0.5MPa. Compared with traditional wooden pallets, the shock absorption effect is improved by 40%, and the pallets can be reused more than 50 times.

**2. Adaptive Vacuum Adsorption Clamp**: The pneumatic clamping system developed for thin panels of different sizes achieves surface contact fixing through -0.08MPa negative pressure, avoiding stress damage caused by traditional bolts. In a commercial complex project in Guangzhou, this clamp achieved installation positioning accuracy of ±1mm while improving loading and unloading efficiency by 50%.

**3. Full-Process IoT Monitoring**: Integrates three-axis acceleration sensors with temperature and humidity monitoring modules, transmitting transport data to a cloud platform in real time. When vibration amplitude exceeds 2.5g or the temperature suddenly changes by >10°C, the system automatically triggers an alert, ensuring the transport environment complies with Qinglong's enterprise standard "Standard for Storage and Transport of UHPC Components" (Q/QL 003-2024).

III. Full-Chain Services Building Competitive Barriers

As a national high-tech enterprise, Qinglong incorporates transport fixing technology into full-process control covering "detailed design - manufacturing - construction and installation". In the Dongguan Women and Children's Activity Center project, the technical team carried out transport route simulation 72 hours in advance, designed dedicated speed bumps for road sections with a 12% gradient, and combined them with a synchronized transport plan for GRC decorative lines, achieving coordinated delivery of multi-material components. This integrated service capability has enabled Qinglong to shorten project delivery cycles by 15% and maintain customer satisfaction above 98% in competition with peers such as Guangdong Shiji Shangpin and Shantaixin Industrial.

From the UHPC curtain walls of Malaysia's Petronas Twin Towers to the GRP ceilings of the Sydney Opera House in Australia, Qinglong Group has always upheld the mission of "creating aesthetic architecture", turning 28 years of technical accumulation into customer value. The transport fixing technology for ultra-thin UHPC panels is a vivid embodiment of Qinglong's corporate spirit of "meticulousness and the pursuit of excellence". In the future, with the implementation of the industry standard "General Technical Requirements for Non-Load-Bearing Ultra-High Performance Concrete (UHPC) Components", Qinglong will continue to advance the standardization and intelligentization of transport fixing technology, safeguarding the safe application of new architectural decorative materials.