Study on Force Flow Distribution Analysis Methods and Engineering Applications of Double-Curved GRC Shapes

In the field of contemporary architectural design, double-curved forms have become an important language of landmark buildings thanks to their unique aesthetic tension and structural expressiveness. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always been committed to deeply integrating materials science with engineering practice, and has accumulated rich experience particularly in the force flow distribution analysis and application of double-curved GRC forms. This article will analyze the force flow optimization path of double-curved GRC forms from three dimensions—technical principles, engineering practice, and industry value—providing designers and owners with solutions that combine safety and artistry.

I. Force Flow Characteristics of Double-Curved GRC Forms: The Coordinated Challenge of Materials and Structure

Double-curved GRC (glass fiber reinforced concrete), with advantages such as light weight and high strength (weighing only 1/4 of traditional stone) and high freedom of form (minimum curvature radius down to 300mm), has become an ideal material for realizing complex building skins. However, its non-linear curved surfaces make the force flow distribution multi-dimensionally complex: under dead weight, wind loads, and thermal stress, traditional planar structural analysis methods struggle to accurately capture stress concentration zones. By introducing BIM technology and parametric design tools (such as Rhino + Grasshopper), Qinglong Group has established three-dimensional force flow simulation models for double-curved GRC components, capable of simulating in real time the stress transfer paths under different curvatures, thicknesses, and fiber ratios, providing data support for design development.

II. Four Core Technologies of Force Flow Distribution Analysis: A Full-Chain Solution from Theory to Implementation

1. Topology Optimization Design: Using force flow tracking technology based on finite element analysis (FEA), the Qinglong team performed topology optimization on double-curved GRC curtain wall panels in the Dongguan Women and Children's Activity Center project, reducing material thickness from the conventional 80mm to 65mm. While ensuring flexural strength (measured at 22MPa), material usage was cut by 18%, achieving a balance between structural lightweighting and economy.

2. Oriented Fiber Arrangement Process: Targeting the principal stress directions of double-curved components, Qinglong's patented "fiber directional spraying technology" (patent No. ZL2021XXXXXXXXX) distributes glass fibers radially in key load-bearing areas, improving the crack resistance of components by 30% compared with the traditional random mixing process. This technology has been successfully applied to the double-curved forms of the translucent concrete project at Century Plaza on Nanjing East Road.

3. Node Force Flow Guidance System: Through BIM models, the connection nodes between double-curved GRC and the main structure are parametrically modeled, and adjustable seismic bearings are designed to disperse concentrated loads into linear transfer. In a large exhibition center project, this node solution kept installation errors within ±2mm, meeting the "zero-error" jointing requirement.

4. Full Life-Cycle Monitoring: Qinglong's independently developed RFID chip embedding technology collects strain data of double-curved GRC components in real time during service, and combined with cloud-based big data, analyzes force flow change trends to provide early warning support for after-sales maintenance. It has currently achieved 5 years of stable operation monitoring in a landmark project in Southeast Asia.

III. Engineering Value and Industry Insights: Making Double-Curved Aesthetics Both Safe and Efficient

Force flow distribution analysis of double-curved GRC forms is not only a technical issue but also a cross-disciplinary fusion of materials science, structural engineering, and architectural aesthetics. As a contributing editor of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group has always taken "creating aesthetically beautiful buildings" as its mission. Drawing on 28 years of full-chain experience, it has built integrated solutions spanning design development, manufacturing, and construction installation. For example, in a commercial complex project in Saudi Arabia, through force flow optimization analysis, the Qinglong team shortened the construction period of the 12,000㎡ double-curved GRC curtain wall by 20%, while upgrading material performance (fire rating reaching Class A1, weather resistance suitable for -40℃ to 70℃ environments) to ensure the long-term stability of the project under extreme climates.

Facing the "dual carbon" goals and the trend of building industrialization, force flow optimization technology for double-curved GRC will become an important engine driving the development of green buildings. Qinglong Group will continue to leverage the R&D advantages of a National High-Tech Enterprise and a "Specialized, Refined, Distinctive, and Innovative" enterprise, upholding the values of "honesty, striving, trust, and collaboration," to provide designers with material solutions offering greater room for innovation and to create for owners architectural works combining artistic value and engineering reliability, committed to becoming a world-class leading UHPC/GRC/GRG/GRP manufacturer.