Research on Splicing Precision Control Technology and Practice for Multi-Curved UHPC Shapes

**Research on Splicing Precision Control Technology and Practice for Multi-Curved UHPC Forms: Technical Breakthroughs from Qinglong's 28 Years of Industry Experience**

Driven by the dual forces of contemporary architectural aesthetics and engineering technology, Ultra-High Performance Concrete (UHPC) has become the core material for shaping landmark buildings, thanks to its ultra-high strength, excellent durability, and exceptional formability. Especially in the field of multi-curved forms, the application of UHPC not only gives buildings an artistic soul but also poses extremely high challenges for splicing precision control. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group, with its full-chain technical strength, has achieved a leap from millimeter-level error to artistic-level presentation in the precision control of multi-curved UHPC forms.

### Precision Pain Points of Multi-Curved UHPC Forms: Full-Process Challenges from Design to Construction

Splicing precision control for multi-curved UHPC forms is a systematic project spanning design, production, and construction. In the design phase, parametric modeling of complex curved surfaces must balance aesthetic expression with structural feasibility, as traditional two-dimensional drawings struggle to accurately convey curvature variations; in the production stage, subtle differences in mold precision, material proportions, and curing processes may cause dimensional deviations in components; during installation, factors such as site conditions, hoisting precision, and joint treatment directly affect the final formed result. A landmark project once suffered a fracture in surface continuity due to splicing errors exceeding 5mm, which not only compromised the visual effect but also increased later maintenance risks.

### Qinglong's Full-Chain Technical Solution: Precision Assurance from Digital Design to Intelligent Construction

To address the precision challenges of multi-curved UHPC forms, Qinglong Group has built a trinity technical system integrating "design-production-construction". In the detailed design phase, BIM + parametric design technology (such as the linkage of Rhino and Grasshopper) is adopted to convert curved forms into quantifiable digital models, achieving millimeter-level precision in component splitting and node optimization; in manufacturing, relying on intelligent production lines with an annual capacity of 600,000 square meters, high-precision steel molds and 3D scanning inspection technology ensure that the dimensional error of each precast component is controlled within ±2mm; during installation, three-dimensional laser positioning and modular splicing processes, combined with Qinglong's self-developed adjustable anchoring system, achieve on-site splicing errors of ≤3mm, perfectly presenting the design intent.

### Engineering Practice Verification: Precision Breakthroughs from Theory to Implementation

In the renovation project of Century Plaza on Nanjing East Road, Qinglong Group undertook the construction of a translucent concrete curved curtain wall. The project included 238 special-shaped UHPC components, with a maximum surface radius of 8 meters and a minimum curvature radius of only 300mm. By applying the above technical solution, the project team successfully controlled the splicing precision within 2mm, meeting both the light transmission effect and structural safety requirements. The project consequently won the "Silver Award of the First UHPC Building Engineering Innovation Award (AALBORG WHITE Cup)". In addition, in projects such as the Dongguan Women and Children's Activity Center, Qinglong's multi-curved GRC/UHPC splicing technology has likewise withstood the test of practice, becoming an industry benchmark.

### Conclusion: Defining Industry Standards through Technological Innovation

As a national high-tech enterprise and a participant in industry standard formulation, Qinglong Group has always taken "creating aesthetically beautiful architecture" as its mission, transforming 28 years of full-chain experience into technical advantages. In the field of splicing precision control for multi-curved UHPC forms, Qinglong has not only solved engineering challenges but also driven industry-wide technological upgrades. Looking ahead, Qinglong will continue to focus on the innovative application of UHPC/GRC/GRG/GRP materials, providing expert solutions from concept to implementation for designers and owners, and is committed to becoming a world-class leading manufacturer of architectural decoration materials.