Research on Force Flow Distribution Analysis Methods and Optimization Strategies for Doubly-Curved GRC Forms

At the intersection of contemporary architectural aesthetics and structural engineering, double-curved GRC forms, with their unique surface tension and artistic expressiveness, have become a key vehicle for landmark buildings to achieve design breakthroughs. However, their complex geometry is often accompanied by technical challenges of uneven force flow distribution. How to achieve a balance between aesthetic form and structural safety through scientific analysis methods and optimization strategies is a challenge that industry practitioners must tackle. As an industry practitioner with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will start from the underlying logic of force flow analysis to decode the technical secrets of double-curved GRC forms.

Core Challenges and Analytical Paradigm of Force Flow Distribution in Double-Curved GRC Forms

The force flow distribution of double-curved GRC components exhibits significant nonlinear characteristics, and traditional linear analysis methods can hardly accurately capture stress concentration at curvature transitions. By introducing finite element simulation (FEA) and parametric design tools, the Qinglong technical team established a trinity analysis model of "geometric form - material properties - load path". In a double-curved curtain wall project for a cultural center, the team used the Rhino+Grasshopper platform for parametric modeling, converting surface curvature changes into quantifiable force flow parameters. Combined with the flexural strength characteristics of GRC materials above 20MPa, they successfully located three potential stress concentration areas, providing data support for subsequent optimization. This digital twin-based analysis method improved force flow visualization accuracy by 40%, far exceeding the error range of traditional industry empirical judgment.

Multi-Dimensional Optimization Strategies: A Systematic Solution from Material Formulation to Construction Logic

For force flow optimization of double-curved GRC forms, Qinglong built a three-tier optimization system of "material - structure - process". At the material level, by adjusting glass fiber content (typically controlled at 4.5%-6%) and the cement-based mix ratio, a high-toughness GRC formulation suitable for double-curved forms was developed, with ultimate tensile strain 25% higher than conventional formulations; at the structural level, an innovative "main rib - secondary rib - skin" composite construction was adopted, using BIM technology to optimize rib layout and shorten the force flow transfer path by 30%; at the process level, 3D mold printing and vacuum infusion technology were introduced to ensure first-time forming accuracy of complex curved surfaces within ±2mm. In a double-curved cornice project for an international airport terminal, this optimization strategy reduced component self-weight by 15% and increased installation efficiency by 50%, confirming the practical value of the technical solution.

Empirical Evidence of Force Flow Optimization in Engineering Practice: From Laboratory to Building Skin

The value of theoretical analysis must ultimately be verified through engineering practice. In the Dongguan Women and Children's Activity Center project, the Qinglong team faced a double-curved GRC curtain wall with a 5-meter radius. Force flow simulation revealed that traditional anchoring methods could lead to stress overload at edges and corners. To address this, they innovatively designed a "floating anchoring joint" that allows components to produce slight displacement under thermal deformation, reducing local stress peaks by 42%. The project ultimately won the Silver Award of the AALBORG WHITE Cup GRC Building Engineering Innovation Award, becoming a model of integrating force flow optimization with aesthetic expression. Similar cases were also confirmed in the Nanjing East Road Century Plaza translucent concrete project, where force flow-oriented modular design achieved dual breakthroughs in light transmittance and structural strength.

Force flow distribution analysis and optimization of double-curved GRC forms is essentially the systematic integration of material properties, structural logic, and construction techniques. With 28 years of technical accumulation, Qinglong Group deeply integrates detailed design with engineering practice, forming a full-process solution from digital simulation to physical implementation. In the future, with the iteration of UHPC/GRC composite material technology, force flow control of double-curved forms will develop toward greater refinement and intelligence, providing unlimited possibilities for the symbiosis of architectural art and engineering safety. As a national high-tech enterprise and participant in industry standard setting, Qinglong has always taken "creating aesthetically beautiful architecture" as its mission, continuously exploring the path of material innovation and structural optimization, providing designers and owners with professional support beyond expectations.