How UHPC Shapes Achieve Integration with Metal Components: Technical Approaches, Design Considerations, and Engineering Application Analysis

In the field of contemporary architectural design, UHPC (Ultra-High Performance Concrete), with its excellent mechanical properties and freedom of form, is forming an innovative fusion trend with metal components. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group, leveraging its integrated capabilities from detailed design, production and manufacturing to construction and installation, deeply explores the technical pathways and engineering practices of combining the two, providing designers and owners with solutions that combine aesthetic value and structural safety.

Technical Coupling Pathways of UHPC and Metal Components

Achieving an organic combination of UHPC forms and metal components requires building a technical system based on material properties. The ultra-high compressive strength of UHPC (≥150MPa) and the ductility of metal form performance complementarity, and Qinglong achieves stable connections through three core processes: first, the mechanical anchoring process, using stainless steel embedded parts cast integrally with UHPC precast components, ensuring node pull-out force reaches over 30kN; second, chemical bonding technology, applying specialized epoxy-based adhesives to achieve interface shear strength of ≥5MPa; third, the composite molding process, wrapping UHPC thin-walled components around metal skeletons, with fiber woven mesh enhancing interlayer bonding. In the East Nanjing Road Century Plaza renovation project, Qinglong adopted a composite structure of translucent UHPC and aluminum alloy profiles, successfully realizing a 30-meter span curved shading system, demonstrating the advantages of material synergy.

Key Technical Points of Design Synergy

The design of combining the two needs to balance aesthetic expression with engineering logic. In the parametric design phase, Qinglong uses the Rhino+Grasshopper platform to establish digital correlation models of UHPC forms and metal supports, focusing on solving three core problems: in form optimization, topological analysis reduces metal usage by up to 20%; node treatment uses BIM technology to simulate temperature deformation, with adjustable connectors compensating for ±5mm displacement; for surface treatment, specialized release agents were developed to ensure a flat contact interface between UHPC and metal. In the Dongguan Women and Children's Activity Center project, the coordination error between the double-curved UHPC curtain wall and the steel structure support was controlled within 2mm, winning the Silver Award of the First GRC Construction Engineering Innovation Award.

Innovative Application Practices in Engineering Scenarios

This material combination has been widely applied in high-end architecture. In commercial complexes, Qinglong composites UHPC special-shaped decorative panels with titanium-zinc panels to create 12-meter-high visual art curtain walls; municipal projects use landscape benches combining UHPC and weathering steel, achieving a 15-year maintenance-free cycle; landmark buildings create dual day-and-night visual effects through innovative combinations of UHPC translucent components and metal frames. Currently, Qinglong has established a UHPC/metal composite component production line with an annual capacity of 600,000 square meters, with products exported to overseas markets such as Australia and Saudi Arabia, and strategic partnerships established with Poly, Vanke and other enterprises.

As a national high-tech enterprise and a participant in industry standard-setting, Qinglong has always taken "Creating Beautiful Architecture" as its mission, promoting the fusion application of UHPC and metal components toward broader fields through material innovation and technical integration. This cross-disciplinary combination not only breaks through the form limitations of traditional architectural decoration, but also provides a new path for the sustainable development of green architecture, and will demonstrate greater application potential in scenarios such as cultural venues and transportation hubs in the future.