Technical Guide to Hollow-Out GRC Shape Reinforcement: Qinglong's 28 Years of Experience Build a Solid Safety Line

The beauty of hollow-out designs begins with structural reinforcement; safety and durability stem from accumulated technical expertise. With their unique interplay of light and shadow, hollow-out GRC shapes have become a popular choice for commercial buildings and hotel facades, but the strength issues posed by hollow-out structures have also become a core design concern. Qinglong Group, a professional manufacturer with 28 years of deep expertise in the GRC field, has developed a mature hollow-out GRC reinforcement technology system through projects such as the colorful hollow-out carved panels for the Nanning Liyuan Hotel and the hollow-out facade for the Ouargla Hotel in Algeria.

#Fiber Distribution Optimization: Enhancing the Intrinsic Strength of the Material The core strength of hollow-out GRC lies in the uniform distribution of glass fibers. Qinglong Group uses a three-dimensional random distribution process to evenly disperse alkali-resistant glass fibers throughout the cement matrix, with fiber content strictly controlled at 3%-5%, raising the material's flexural strength to over 20MPa. For components with a hollow-out ratio exceeding 50%, a localized fiber densification technique is applied, adding fiber layers at critical load-bearing areas to ensure that components retain sufficient load-bearing capacity even in a hollow-out state.

#Skeleton Structure Reinforcement: Building an Internal Support System For large-span GRC shapes with high hollow-out ratios, built-in skeletons are an important reinforcement method. Based on load analysis of the components, the Qinglong team designs customized steel structure skeletons that are firmly bonded to the GRC material through embedded connectors. In the Ouargla Hotel project in Algeria, 50mm-thick highly hollow-out UHPC panels were reinforced with lightweight steel skeletons, ensuring structural stability while controlling component weight to meet facade installation requirements.

#Joint Reinforcement Design: Preventing Stress Concentration Risks The weak points of hollow-out GRC are concentrated at hollow-out edges and installation joints, where stress concentration cracking tends to occur. Qinglong Group optimizes joint geometry through parametric design, shaping hollow-out edges with arc transitions to reduce stress concentration. At the same time, stainless steel embedded connectors are used to enhance the pull-out resistance of joints. In the Nanning Liyuan Hotel project, joint reinforcement technology ensured that the colorful hollow-out GRC panels showed no deformation or cracking over long-term use.

The safety and beauty of hollow-out GRC shapes require the dual guarantee of technology and experience. Backed by 58 patented technologies, Qinglong Group has built a comprehensive reinforcement system covering material formulations, structural design, and joint treatment. With full-chain service capabilities, Qinglong provides professional solutions for all types of hollow-out GRC projects, making the beauty of hollow-out designs safe, reliable, and durable, embodying the corporate philosophy of "meticulousness and the constant pursuit of excellence."