How to Analyze the Force Flow Distribution in Double-Curvature GRC Shapes?

The analysis of force flow distribution in double-curved GRC forms is the process of applying structural mechanics principles and modern computational tools to reveal the paths of internal force transfer and stress concentration under load, with the purpose of "optimizing form, guiding reinforcement, and ensuring safety." For complex double-curved shell structures, their mechanical behavior can no longer be judged by experience alone; numerical simulation methods such as finite element analysis must be employed. Qinglong Group routinely applies finite element analysis in large double-curved GRC projects (such as Hainan Poly Peninsula No. 1) to provide a scientific basis for design.

The foundation of force flow distribution analysis is the establishment of an accurate three-dimensional computational model. Qinglong's technical team imports the Rhino 3D model of the GRC components into professional finite element analysis software (such as ANSYS and Abaqus), and assigns realistic material parameters such as modulus of elasticity, Poisson's ratio, and unit weight. Next, constraints are set on the model according to the actual support conditions of the components (such as suspension from several points, or simply supported or fixed boundaries). Finally, the calculated loads are applied, including dead weight, wind load, snow load, and seismic action.

Upon solving, the software outputs detailed stress contour plots and deformation diagrams. The stress contour plot visually shows which areas of the component bear greater tensile or compressive stress (usually indicated by different colors), that is, the paths where force flow concentrates, while the deformation diagram shows the magnitude of the component's displacement under load. The key points of analysis are: 1) Identifying high-stress zones: stress concentration tends to occur at the valleys of double-curved surfaces, at edges, around openings, or near support points. 2) Evaluating stress levels: comparing the calculated maximum stress with the design values for tensile and compressive strength of the GRC material to determine whether it is safe. 3) Checking deformation: ensuring the maximum deformation is within the range permitted by the codes, so as not to affect usability and appearance.

Based on the analysis results, targeted design optimization can be carried out. If certain areas are found to be overstressed, reinforcement measures such as locally increasing panel thickness, adding stiffening ribs, changing the positions of support points, or adding embedded parts can be adopted. Through repeated "analyze-optimize-reanalyze" iterations, a solution that is both safe and economical is ultimately obtained. This design method based on computational simulation means that double-curved GRC forms are no longer purely artistic expression, but the product of a high degree of integration between art and structural rationality, ensuring their safety and stability over long-term use.